diff options
author | Noralf Trønnes <noralf@tronnes.org> | 2019-07-25 13:51:31 +0300 |
---|---|---|
committer | Noralf Trønnes <noralf@tronnes.org> | 2019-07-31 16:16:10 +0300 |
commit | 043386a0f094e0ae8bda6f824461debe9b708db5 (patch) | |
tree | 0bdc8024906791f92bf30e3180e3068148ba0f69 /drivers/gpu/drm/tinydrm | |
parent | 28c47e16ea2a19adb47fe2c182cbd61cb854237c (diff) | |
download | linux-043386a0f094e0ae8bda6f824461debe9b708db5.tar.xz |
drm/tinydrm: Rename folder to tiny
The drm in tinydrm is superfluous so rename to tiny.
Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190725105132.22545-3-noralf@tronnes.org
Diffstat (limited to 'drivers/gpu/drm/tinydrm')
-rw-r--r-- | drivers/gpu/drm/tinydrm/Kconfig | 89 | ||||
-rw-r--r-- | drivers/gpu/drm/tinydrm/Makefile | 9 | ||||
-rw-r--r-- | drivers/gpu/drm/tinydrm/hx8357d.c | 304 | ||||
-rw-r--r-- | drivers/gpu/drm/tinydrm/ili9225.c | 470 | ||||
-rw-r--r-- | drivers/gpu/drm/tinydrm/ili9341.c | 268 | ||||
-rw-r--r-- | drivers/gpu/drm/tinydrm/mi0283qt.c | 294 | ||||
-rw-r--r-- | drivers/gpu/drm/tinydrm/repaper.c | 1212 | ||||
-rw-r--r-- | drivers/gpu/drm/tinydrm/st7586.c | 424 | ||||
-rw-r--r-- | drivers/gpu/drm/tinydrm/st7735r.c | 246 |
9 files changed, 0 insertions, 3316 deletions
diff --git a/drivers/gpu/drm/tinydrm/Kconfig b/drivers/gpu/drm/tinydrm/Kconfig deleted file mode 100644 index f8c9a0e71dde..000000000000 --- a/drivers/gpu/drm/tinydrm/Kconfig +++ /dev/null @@ -1,89 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0-only -config TINYDRM_HX8357D - tristate "DRM support for HX8357D display panels" - depends on DRM && SPI - select DRM_KMS_HELPER - select DRM_KMS_CMA_HELPER - select DRM_MIPI_DBI - select BACKLIGHT_CLASS_DEVICE - help - DRM driver for the following HX8357D panels: - * YX350HV15-T 3.5" 340x350 TFT (Adafruit 3.5") - - If M is selected the module will be called hx8357d. - -config TINYDRM_ILI9225 - tristate "DRM support for ILI9225 display panels" - depends on DRM && SPI - select DRM_KMS_HELPER - select DRM_KMS_CMA_HELPER - select DRM_MIPI_DBI - help - DRM driver for the following Ilitek ILI9225 panels: - * No-name 2.2" color screen module - - If M is selected the module will be called ili9225. - -config TINYDRM_ILI9341 - tristate "DRM support for ILI9341 display panels" - depends on DRM && SPI - select DRM_KMS_HELPER - select DRM_KMS_CMA_HELPER - select DRM_MIPI_DBI - select BACKLIGHT_CLASS_DEVICE - help - DRM driver for the following Ilitek ILI9341 panels: - * YX240QV29-T 2.4" 240x320 TFT (Adafruit 2.4") - - If M is selected the module will be called ili9341. - -config TINYDRM_MI0283QT - tristate "DRM support for MI0283QT" - depends on DRM && SPI - select DRM_KMS_HELPER - select DRM_KMS_CMA_HELPER - select DRM_MIPI_DBI - select BACKLIGHT_CLASS_DEVICE - help - DRM driver for the Multi-Inno MI0283QT display panel - If M is selected the module will be called mi0283qt. - -config TINYDRM_REPAPER - tristate "DRM support for Pervasive Displays RePaper panels (V231)" - depends on DRM && SPI - select DRM_KMS_HELPER - select DRM_KMS_CMA_HELPER - depends on THERMAL || !THERMAL - help - DRM driver for the following Pervasive Displays panels: - 1.44" TFT EPD Panel (E1144CS021) - 1.90" TFT EPD Panel (E1190CS021) - 2.00" TFT EPD Panel (E2200CS021) - 2.71" TFT EPD Panel (E2271CS021) - - If M is selected the module will be called repaper. - -config TINYDRM_ST7586 - tristate "DRM support for Sitronix ST7586 display panels" - depends on DRM && SPI - select DRM_KMS_HELPER - select DRM_KMS_CMA_HELPER - select DRM_MIPI_DBI - help - DRM driver for the following Sitronix ST7586 panels: - * LEGO MINDSTORMS EV3 - - If M is selected the module will be called st7586. - -config TINYDRM_ST7735R - tristate "DRM support for Sitronix ST7735R display panels" - depends on DRM && SPI - select DRM_KMS_HELPER - select DRM_KMS_CMA_HELPER - select DRM_MIPI_DBI - select BACKLIGHT_CLASS_DEVICE - help - DRM driver Sitronix ST7735R with one of the following LCDs: - * JD-T18003-T01 1.8" 128x160 TFT - - If M is selected the module will be called st7735r. diff --git a/drivers/gpu/drm/tinydrm/Makefile b/drivers/gpu/drm/tinydrm/Makefile deleted file mode 100644 index 6490167a9ad1..000000000000 --- a/drivers/gpu/drm/tinydrm/Makefile +++ /dev/null @@ -1,9 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0-only - -obj-$(CONFIG_TINYDRM_HX8357D) += hx8357d.o -obj-$(CONFIG_TINYDRM_ILI9225) += ili9225.o -obj-$(CONFIG_TINYDRM_ILI9341) += ili9341.o -obj-$(CONFIG_TINYDRM_MI0283QT) += mi0283qt.o -obj-$(CONFIG_TINYDRM_REPAPER) += repaper.o -obj-$(CONFIG_TINYDRM_ST7586) += st7586.o -obj-$(CONFIG_TINYDRM_ST7735R) += st7735r.o diff --git a/drivers/gpu/drm/tinydrm/hx8357d.c b/drivers/gpu/drm/tinydrm/hx8357d.c deleted file mode 100644 index 9af8ff84974f..000000000000 --- a/drivers/gpu/drm/tinydrm/hx8357d.c +++ /dev/null @@ -1,304 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * DRM driver for the HX8357D LCD controller - * - * Copyright 2018 Broadcom - * Copyright 2018 David Lechner <david@lechnology.com> - * Copyright 2016 Noralf Trønnes - * Copyright (C) 2015 Adafruit Industries - * Copyright (C) 2013 Christian Vogelgsang - */ - -#include <linux/backlight.h> -#include <linux/delay.h> -#include <linux/gpio/consumer.h> -#include <linux/module.h> -#include <linux/property.h> -#include <linux/spi/spi.h> - -#include <drm/drm_atomic_helper.h> -#include <drm/drm_drv.h> -#include <drm/drm_fb_helper.h> -#include <drm/drm_gem_cma_helper.h> -#include <drm/drm_gem_framebuffer_helper.h> -#include <drm/drm_mipi_dbi.h> -#include <drm/drm_modeset_helper.h> -#include <video/mipi_display.h> - -#define HX8357D_SETOSC 0xb0 -#define HX8357D_SETPOWER 0xb1 -#define HX8357D_SETRGB 0xb3 -#define HX8357D_SETCYC 0xb3 -#define HX8357D_SETCOM 0xb6 -#define HX8357D_SETEXTC 0xb9 -#define HX8357D_SETSTBA 0xc0 -#define HX8357D_SETPANEL 0xcc -#define HX8357D_SETGAMMA 0xe0 - -#define HX8357D_MADCTL_MY 0x80 -#define HX8357D_MADCTL_MX 0x40 -#define HX8357D_MADCTL_MV 0x20 -#define HX8357D_MADCTL_ML 0x10 -#define HX8357D_MADCTL_RGB 0x00 -#define HX8357D_MADCTL_BGR 0x08 -#define HX8357D_MADCTL_MH 0x04 - -static void yx240qv29_enable(struct drm_simple_display_pipe *pipe, - struct drm_crtc_state *crtc_state, - struct drm_plane_state *plane_state) -{ - struct mipi_dbi_dev *dbidev = drm_to_mipi_dbi_dev(pipe->crtc.dev); - struct mipi_dbi *dbi = &dbidev->dbi; - u8 addr_mode; - int ret, idx; - - if (!drm_dev_enter(pipe->crtc.dev, &idx)) - return; - - DRM_DEBUG_KMS("\n"); - - ret = mipi_dbi_poweron_conditional_reset(dbidev); - if (ret < 0) - goto out_exit; - if (ret == 1) - goto out_enable; - - /* setextc */ - mipi_dbi_command(dbi, HX8357D_SETEXTC, 0xFF, 0x83, 0x57); - msleep(150); - - /* setRGB which also enables SDO */ - mipi_dbi_command(dbi, HX8357D_SETRGB, 0x00, 0x00, 0x06, 0x06); - - /* -1.52V */ - mipi_dbi_command(dbi, HX8357D_SETCOM, 0x25); - - /* Normal mode 70Hz, Idle mode 55 Hz */ - mipi_dbi_command(dbi, HX8357D_SETOSC, 0x68); - - /* Set Panel - BGR, Gate direction swapped */ - mipi_dbi_command(dbi, HX8357D_SETPANEL, 0x05); - - mipi_dbi_command(dbi, HX8357D_SETPOWER, - 0x00, /* Not deep standby */ - 0x15, /* BT */ - 0x1C, /* VSPR */ - 0x1C, /* VSNR */ - 0x83, /* AP */ - 0xAA); /* FS */ - - mipi_dbi_command(dbi, HX8357D_SETSTBA, - 0x50, /* OPON normal */ - 0x50, /* OPON idle */ - 0x01, /* STBA */ - 0x3C, /* STBA */ - 0x1E, /* STBA */ - 0x08); /* GEN */ - - mipi_dbi_command(dbi, HX8357D_SETCYC, - 0x02, /* NW 0x02 */ - 0x40, /* RTN */ - 0x00, /* DIV */ - 0x2A, /* DUM */ - 0x2A, /* DUM */ - 0x0D, /* GDON */ - 0x78); /* GDOFF */ - - mipi_dbi_command(dbi, HX8357D_SETGAMMA, - 0x02, - 0x0A, - 0x11, - 0x1d, - 0x23, - 0x35, - 0x41, - 0x4b, - 0x4b, - 0x42, - 0x3A, - 0x27, - 0x1B, - 0x08, - 0x09, - 0x03, - 0x02, - 0x0A, - 0x11, - 0x1d, - 0x23, - 0x35, - 0x41, - 0x4b, - 0x4b, - 0x42, - 0x3A, - 0x27, - 0x1B, - 0x08, - 0x09, - 0x03, - 0x00, - 0x01); - - /* 16 bit */ - mipi_dbi_command(dbi, MIPI_DCS_SET_PIXEL_FORMAT, - MIPI_DCS_PIXEL_FMT_16BIT); - - /* TE off */ - mipi_dbi_command(dbi, MIPI_DCS_SET_TEAR_ON, 0x00); - - /* tear line */ - mipi_dbi_command(dbi, MIPI_DCS_SET_TEAR_SCANLINE, 0x00, 0x02); - - /* Exit Sleep */ - mipi_dbi_command(dbi, MIPI_DCS_EXIT_SLEEP_MODE); - msleep(150); - - /* display on */ - mipi_dbi_command(dbi, MIPI_DCS_SET_DISPLAY_ON); - usleep_range(5000, 7000); - -out_enable: - switch (dbidev->rotation) { - default: - addr_mode = HX8357D_MADCTL_MX | HX8357D_MADCTL_MY; - break; - case 90: - addr_mode = HX8357D_MADCTL_MV | HX8357D_MADCTL_MY; - break; - case 180: - addr_mode = 0; - break; - case 270: - addr_mode = HX8357D_MADCTL_MV | HX8357D_MADCTL_MX; - break; - } - mipi_dbi_command(dbi, MIPI_DCS_SET_ADDRESS_MODE, addr_mode); - mipi_dbi_enable_flush(dbidev, crtc_state, plane_state); -out_exit: - drm_dev_exit(idx); -} - -static const struct drm_simple_display_pipe_funcs hx8357d_pipe_funcs = { - .enable = yx240qv29_enable, - .disable = mipi_dbi_pipe_disable, - .update = mipi_dbi_pipe_update, - .prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb, -}; - -static const struct drm_display_mode yx350hv15_mode = { - DRM_SIMPLE_MODE(320, 480, 60, 75), -}; - -DEFINE_DRM_GEM_CMA_FOPS(hx8357d_fops); - -static struct drm_driver hx8357d_driver = { - .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC, - .fops = &hx8357d_fops, - .release = mipi_dbi_release, - DRM_GEM_CMA_VMAP_DRIVER_OPS, - .debugfs_init = mipi_dbi_debugfs_init, - .name = "hx8357d", - .desc = "HX8357D", - .date = "20181023", - .major = 1, - .minor = 0, -}; - -static const struct of_device_id hx8357d_of_match[] = { - { .compatible = "adafruit,yx350hv15" }, - { } -}; -MODULE_DEVICE_TABLE(of, hx8357d_of_match); - -static const struct spi_device_id hx8357d_id[] = { - { "yx350hv15", 0 }, - { } -}; -MODULE_DEVICE_TABLE(spi, hx8357d_id); - -static int hx8357d_probe(struct spi_device *spi) -{ - struct device *dev = &spi->dev; - struct mipi_dbi_dev *dbidev; - struct drm_device *drm; - struct gpio_desc *dc; - u32 rotation = 0; - int ret; - - dbidev = kzalloc(sizeof(*dbidev), GFP_KERNEL); - if (!dbidev) - return -ENOMEM; - - drm = &dbidev->drm; - ret = devm_drm_dev_init(dev, drm, &hx8357d_driver); - if (ret) { - kfree(dbidev); - return ret; - } - - drm_mode_config_init(drm); - - dc = devm_gpiod_get(dev, "dc", GPIOD_OUT_LOW); - if (IS_ERR(dc)) { - DRM_DEV_ERROR(dev, "Failed to get gpio 'dc'\n"); - return PTR_ERR(dc); - } - - dbidev->backlight = devm_of_find_backlight(dev); - if (IS_ERR(dbidev->backlight)) - return PTR_ERR(dbidev->backlight); - - device_property_read_u32(dev, "rotation", &rotation); - - ret = mipi_dbi_spi_init(spi, &dbidev->dbi, dc); - if (ret) - return ret; - - ret = mipi_dbi_dev_init(dbidev, &hx8357d_pipe_funcs, &yx350hv15_mode, rotation); - if (ret) - return ret; - - drm_mode_config_reset(drm); - - ret = drm_dev_register(drm, 0); - if (ret) - return ret; - - spi_set_drvdata(spi, drm); - - drm_fbdev_generic_setup(drm, 0); - - return 0; -} - -static int hx8357d_remove(struct spi_device *spi) -{ - struct drm_device *drm = spi_get_drvdata(spi); - - drm_dev_unplug(drm); - drm_atomic_helper_shutdown(drm); - - return 0; -} - -static void hx8357d_shutdown(struct spi_device *spi) -{ - drm_atomic_helper_shutdown(spi_get_drvdata(spi)); -} - -static struct spi_driver hx8357d_spi_driver = { - .driver = { - .name = "hx8357d", - .of_match_table = hx8357d_of_match, - }, - .id_table = hx8357d_id, - .probe = hx8357d_probe, - .remove = hx8357d_remove, - .shutdown = hx8357d_shutdown, -}; -module_spi_driver(hx8357d_spi_driver); - -MODULE_DESCRIPTION("HX8357D DRM driver"); -MODULE_AUTHOR("Eric Anholt <eric@anholt.net>"); -MODULE_LICENSE("GPL"); diff --git a/drivers/gpu/drm/tinydrm/ili9225.c b/drivers/gpu/drm/tinydrm/ili9225.c deleted file mode 100644 index c66acc566c2b..000000000000 --- a/drivers/gpu/drm/tinydrm/ili9225.c +++ /dev/null @@ -1,470 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * DRM driver for Ilitek ILI9225 panels - * - * Copyright 2017 David Lechner <david@lechnology.com> - * - * Some code copied from mipi-dbi.c - * Copyright 2016 Noralf Trønnes - */ - -#include <linux/delay.h> -#include <linux/dma-buf.h> -#include <linux/gpio/consumer.h> -#include <linux/module.h> -#include <linux/property.h> -#include <linux/spi/spi.h> -#include <video/mipi_display.h> - -#include <drm/drm_atomic_helper.h> -#include <drm/drm_damage_helper.h> -#include <drm/drm_drv.h> -#include <drm/drm_fb_cma_helper.h> -#include <drm/drm_fb_helper.h> -#include <drm/drm_fourcc.h> -#include <drm/drm_gem_cma_helper.h> -#include <drm/drm_gem_framebuffer_helper.h> -#include <drm/drm_mipi_dbi.h> -#include <drm/drm_rect.h> -#include <drm/drm_vblank.h> - -#define ILI9225_DRIVER_READ_CODE 0x00 -#define ILI9225_DRIVER_OUTPUT_CONTROL 0x01 -#define ILI9225_LCD_AC_DRIVING_CONTROL 0x02 -#define ILI9225_ENTRY_MODE 0x03 -#define ILI9225_DISPLAY_CONTROL_1 0x07 -#define ILI9225_BLANK_PERIOD_CONTROL_1 0x08 -#define ILI9225_FRAME_CYCLE_CONTROL 0x0b -#define ILI9225_INTERFACE_CONTROL 0x0c -#define ILI9225_OSCILLATION_CONTROL 0x0f -#define ILI9225_POWER_CONTROL_1 0x10 -#define ILI9225_POWER_CONTROL_2 0x11 -#define ILI9225_POWER_CONTROL_3 0x12 -#define ILI9225_POWER_CONTROL_4 0x13 -#define ILI9225_POWER_CONTROL_5 0x14 -#define ILI9225_VCI_RECYCLING 0x15 -#define ILI9225_RAM_ADDRESS_SET_1 0x20 -#define ILI9225_RAM_ADDRESS_SET_2 0x21 -#define ILI9225_WRITE_DATA_TO_GRAM 0x22 -#define ILI9225_SOFTWARE_RESET 0x28 -#define ILI9225_GATE_SCAN_CONTROL 0x30 -#define ILI9225_VERTICAL_SCROLL_1 0x31 -#define ILI9225_VERTICAL_SCROLL_2 0x32 -#define ILI9225_VERTICAL_SCROLL_3 0x33 -#define ILI9225_PARTIAL_DRIVING_POS_1 0x34 -#define ILI9225_PARTIAL_DRIVING_POS_2 0x35 -#define ILI9225_HORIZ_WINDOW_ADDR_1 0x36 -#define ILI9225_HORIZ_WINDOW_ADDR_2 0x37 -#define ILI9225_VERT_WINDOW_ADDR_1 0x38 -#define ILI9225_VERT_WINDOW_ADDR_2 0x39 -#define ILI9225_GAMMA_CONTROL_1 0x50 -#define ILI9225_GAMMA_CONTROL_2 0x51 -#define ILI9225_GAMMA_CONTROL_3 0x52 -#define ILI9225_GAMMA_CONTROL_4 0x53 -#define ILI9225_GAMMA_CONTROL_5 0x54 -#define ILI9225_GAMMA_CONTROL_6 0x55 -#define ILI9225_GAMMA_CONTROL_7 0x56 -#define ILI9225_GAMMA_CONTROL_8 0x57 -#define ILI9225_GAMMA_CONTROL_9 0x58 -#define ILI9225_GAMMA_CONTROL_10 0x59 - -static inline int ili9225_command(struct mipi_dbi *dbi, u8 cmd, u16 data) -{ - u8 par[2] = { data >> 8, data & 0xff }; - - return mipi_dbi_command_buf(dbi, cmd, par, 2); -} - -static void ili9225_fb_dirty(struct drm_framebuffer *fb, struct drm_rect *rect) -{ - struct drm_gem_cma_object *cma_obj = drm_fb_cma_get_gem_obj(fb, 0); - struct mipi_dbi_dev *dbidev = drm_to_mipi_dbi_dev(fb->dev); - unsigned int height = rect->y2 - rect->y1; - unsigned int width = rect->x2 - rect->x1; - struct mipi_dbi *dbi = &dbidev->dbi; - bool swap = dbi->swap_bytes; - u16 x_start, y_start; - u16 x1, x2, y1, y2; - int idx, ret = 0; - bool full; - void *tr; - - if (!dbidev->enabled) - return; - - if (!drm_dev_enter(fb->dev, &idx)) - return; - - full = width == fb->width && height == fb->height; - - DRM_DEBUG_KMS("Flushing [FB:%d] " DRM_RECT_FMT "\n", fb->base.id, DRM_RECT_ARG(rect)); - - if (!dbi->dc || !full || swap || - fb->format->format == DRM_FORMAT_XRGB8888) { - tr = dbidev->tx_buf; - ret = mipi_dbi_buf_copy(dbidev->tx_buf, fb, rect, swap); - if (ret) - goto err_msg; - } else { - tr = cma_obj->vaddr; - } - - switch (dbidev->rotation) { - default: - x1 = rect->x1; - x2 = rect->x2 - 1; - y1 = rect->y1; - y2 = rect->y2 - 1; - x_start = x1; - y_start = y1; - break; - case 90: - x1 = rect->y1; - x2 = rect->y2 - 1; - y1 = fb->width - rect->x2; - y2 = fb->width - rect->x1 - 1; - x_start = x1; - y_start = y2; - break; - case 180: - x1 = fb->width - rect->x2; - x2 = fb->width - rect->x1 - 1; - y1 = fb->height - rect->y2; - y2 = fb->height - rect->y1 - 1; - x_start = x2; - y_start = y2; - break; - case 270: - x1 = fb->height - rect->y2; - x2 = fb->height - rect->y1 - 1; - y1 = rect->x1; - y2 = rect->x2 - 1; - x_start = x2; - y_start = y1; - break; - } - - ili9225_command(dbi, ILI9225_HORIZ_WINDOW_ADDR_1, x2); - ili9225_command(dbi, ILI9225_HORIZ_WINDOW_ADDR_2, x1); - ili9225_command(dbi, ILI9225_VERT_WINDOW_ADDR_1, y2); - ili9225_command(dbi, ILI9225_VERT_WINDOW_ADDR_2, y1); - - ili9225_command(dbi, ILI9225_RAM_ADDRESS_SET_1, x_start); - ili9225_command(dbi, ILI9225_RAM_ADDRESS_SET_2, y_start); - - ret = mipi_dbi_command_buf(dbi, ILI9225_WRITE_DATA_TO_GRAM, tr, - width * height * 2); -err_msg: - if (ret) - dev_err_once(fb->dev->dev, "Failed to update display %d\n", ret); - - drm_dev_exit(idx); -} - -static void ili9225_pipe_update(struct drm_simple_display_pipe *pipe, - struct drm_plane_state *old_state) -{ - struct drm_plane_state *state = pipe->plane.state; - struct drm_crtc *crtc = &pipe->crtc; - struct drm_rect rect; - - if (drm_atomic_helper_damage_merged(old_state, state, &rect)) - ili9225_fb_dirty(state->fb, &rect); - - if (crtc->state->event) { - spin_lock_irq(&crtc->dev->event_lock); - drm_crtc_send_vblank_event(crtc, crtc->state->event); - spin_unlock_irq(&crtc->dev->event_lock); - crtc->state->event = NULL; - } -} - -static void ili9225_pipe_enable(struct drm_simple_display_pipe *pipe, - struct drm_crtc_state *crtc_state, - struct drm_plane_state *plane_state) -{ - struct mipi_dbi_dev *dbidev = drm_to_mipi_dbi_dev(pipe->crtc.dev); - struct drm_framebuffer *fb = plane_state->fb; - struct device *dev = pipe->crtc.dev->dev; - struct mipi_dbi *dbi = &dbidev->dbi; - struct drm_rect rect = { - .x1 = 0, - .x2 = fb->width, - .y1 = 0, - .y2 = fb->height, - }; - int ret, idx; - u8 am_id; - - if (!drm_dev_enter(pipe->crtc.dev, &idx)) - return; - - DRM_DEBUG_KMS("\n"); - - mipi_dbi_hw_reset(dbi); - - /* - * There don't seem to be two example init sequences that match, so - * using the one from the popular Arduino library for this display. - * https://github.com/Nkawu/TFT_22_ILI9225/blob/master/src/TFT_22_ILI9225.cpp - */ - - ret = ili9225_command(dbi, ILI9225_POWER_CONTROL_1, 0x0000); - if (ret) { - DRM_DEV_ERROR(dev, "Error sending command %d\n", ret); - goto out_exit; - } - ili9225_command(dbi, ILI9225_POWER_CONTROL_2, 0x0000); - ili9225_command(dbi, ILI9225_POWER_CONTROL_3, 0x0000); - ili9225_command(dbi, ILI9225_POWER_CONTROL_4, 0x0000); - ili9225_command(dbi, ILI9225_POWER_CONTROL_5, 0x0000); - - msleep(40); - - ili9225_command(dbi, ILI9225_POWER_CONTROL_2, 0x0018); - ili9225_command(dbi, ILI9225_POWER_CONTROL_3, 0x6121); - ili9225_command(dbi, ILI9225_POWER_CONTROL_4, 0x006f); - ili9225_command(dbi, ILI9225_POWER_CONTROL_5, 0x495f); - ili9225_command(dbi, ILI9225_POWER_CONTROL_1, 0x0800); - - msleep(10); - - ili9225_command(dbi, ILI9225_POWER_CONTROL_2, 0x103b); - - msleep(50); - - switch (dbidev->rotation) { - default: - am_id = 0x30; - break; - case 90: - am_id = 0x18; - break; - case 180: - am_id = 0x00; - break; - case 270: - am_id = 0x28; - break; - } - ili9225_command(dbi, ILI9225_DRIVER_OUTPUT_CONTROL, 0x011c); - ili9225_command(dbi, ILI9225_LCD_AC_DRIVING_CONTROL, 0x0100); - ili9225_command(dbi, ILI9225_ENTRY_MODE, 0x1000 | am_id); - ili9225_command(dbi, ILI9225_DISPLAY_CONTROL_1, 0x0000); - ili9225_command(dbi, ILI9225_BLANK_PERIOD_CONTROL_1, 0x0808); - ili9225_command(dbi, ILI9225_FRAME_CYCLE_CONTROL, 0x1100); - ili9225_command(dbi, ILI9225_INTERFACE_CONTROL, 0x0000); - ili9225_command(dbi, ILI9225_OSCILLATION_CONTROL, 0x0d01); - ili9225_command(dbi, ILI9225_VCI_RECYCLING, 0x0020); - ili9225_command(dbi, ILI9225_RAM_ADDRESS_SET_1, 0x0000); - ili9225_command(dbi, ILI9225_RAM_ADDRESS_SET_2, 0x0000); - - ili9225_command(dbi, ILI9225_GATE_SCAN_CONTROL, 0x0000); - ili9225_command(dbi, ILI9225_VERTICAL_SCROLL_1, 0x00db); - ili9225_command(dbi, ILI9225_VERTICAL_SCROLL_2, 0x0000); - ili9225_command(dbi, ILI9225_VERTICAL_SCROLL_3, 0x0000); - ili9225_command(dbi, ILI9225_PARTIAL_DRIVING_POS_1, 0x00db); - ili9225_command(dbi, ILI9225_PARTIAL_DRIVING_POS_2, 0x0000); - - ili9225_command(dbi, ILI9225_GAMMA_CONTROL_1, 0x0000); - ili9225_command(dbi, ILI9225_GAMMA_CONTROL_2, 0x0808); - ili9225_command(dbi, ILI9225_GAMMA_CONTROL_3, 0x080a); - ili9225_command(dbi, ILI9225_GAMMA_CONTROL_4, 0x000a); - ili9225_command(dbi, ILI9225_GAMMA_CONTROL_5, 0x0a08); - ili9225_command(dbi, ILI9225_GAMMA_CONTROL_6, 0x0808); - ili9225_command(dbi, ILI9225_GAMMA_CONTROL_7, 0x0000); - ili9225_command(dbi, ILI9225_GAMMA_CONTROL_8, 0x0a00); - ili9225_command(dbi, ILI9225_GAMMA_CONTROL_9, 0x0710); - ili9225_command(dbi, ILI9225_GAMMA_CONTROL_10, 0x0710); - - ili9225_command(dbi, ILI9225_DISPLAY_CONTROL_1, 0x0012); - - msleep(50); - - ili9225_command(dbi, ILI9225_DISPLAY_CONTROL_1, 0x1017); - - dbidev->enabled = true; - ili9225_fb_dirty(fb, &rect); -out_exit: - drm_dev_exit(idx); -} - -static void ili9225_pipe_disable(struct drm_simple_display_pipe *pipe) -{ - struct mipi_dbi_dev *dbidev = drm_to_mipi_dbi_dev(pipe->crtc.dev); - struct mipi_dbi *dbi = &dbidev->dbi; - - DRM_DEBUG_KMS("\n"); - - /* - * This callback is not protected by drm_dev_enter/exit since we want to - * turn off the display on regular driver unload. It's highly unlikely - * that the underlying SPI controller is gone should this be called after - * unplug. - */ - - if (!dbidev->enabled) - return; - - ili9225_command(dbi, ILI9225_DISPLAY_CONTROL_1, 0x0000); - msleep(50); - ili9225_command(dbi, ILI9225_POWER_CONTROL_2, 0x0007); - msleep(50); - ili9225_command(dbi, ILI9225_POWER_CONTROL_1, 0x0a02); - - dbidev->enabled = false; -} - -static int ili9225_dbi_command(struct mipi_dbi *dbi, u8 *cmd, u8 *par, - size_t num) -{ - struct spi_device *spi = dbi->spi; - unsigned int bpw = 8; - u32 speed_hz; - int ret; - - gpiod_set_value_cansleep(dbi->dc, 0); - speed_hz = mipi_dbi_spi_cmd_max_speed(spi, 1); - ret = mipi_dbi_spi_transfer(spi, speed_hz, 8, cmd, 1); - if (ret || !num) - return ret; - - if (*cmd == ILI9225_WRITE_DATA_TO_GRAM && !dbi->swap_bytes) - bpw = 16; - - gpiod_set_value_cansleep(dbi->dc, 1); - speed_hz = mipi_dbi_spi_cmd_max_speed(spi, num); - - return mipi_dbi_spi_transfer(spi, speed_hz, bpw, par, num); -} - -static const struct drm_simple_display_pipe_funcs ili9225_pipe_funcs = { - .enable = ili9225_pipe_enable, - .disable = ili9225_pipe_disable, - .update = ili9225_pipe_update, - .prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb, -}; - -static const struct drm_display_mode ili9225_mode = { - DRM_SIMPLE_MODE(176, 220, 35, 44), -}; - -DEFINE_DRM_GEM_CMA_FOPS(ili9225_fops); - -static struct drm_driver ili9225_driver = { - .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC, - .fops = &ili9225_fops, - .release = mipi_dbi_release, - DRM_GEM_CMA_VMAP_DRIVER_OPS, - .name = "ili9225", - .desc = "Ilitek ILI9225", - .date = "20171106", - .major = 1, - .minor = 0, -}; - -static const struct of_device_id ili9225_of_match[] = { - { .compatible = "vot,v220hf01a-t" }, - {}, -}; -MODULE_DEVICE_TABLE(of, ili9225_of_match); - -static const struct spi_device_id ili9225_id[] = { - { "v220hf01a-t", 0 }, - { }, -}; -MODULE_DEVICE_TABLE(spi, ili9225_id); - -static int ili9225_probe(struct spi_device *spi) -{ - struct device *dev = &spi->dev; - struct mipi_dbi_dev *dbidev; - struct drm_device *drm; - struct mipi_dbi *dbi; - struct gpio_desc *rs; - u32 rotation = 0; - int ret; - - dbidev = kzalloc(sizeof(*dbidev), GFP_KERNEL); - if (!dbidev) - return -ENOMEM; - - dbi = &dbidev->dbi; - drm = &dbidev->drm; - ret = devm_drm_dev_init(dev, drm, &ili9225_driver); - if (ret) { - kfree(dbidev); - return ret; - } - - drm_mode_config_init(drm); - - dbi->reset = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH); - if (IS_ERR(dbi->reset)) { - DRM_DEV_ERROR(dev, "Failed to get gpio 'reset'\n"); - return PTR_ERR(dbi->reset); - } - - rs = devm_gpiod_get(dev, "rs", GPIOD_OUT_LOW); - if (IS_ERR(rs)) { - DRM_DEV_ERROR(dev, "Failed to get gpio 'rs'\n"); - return PTR_ERR(rs); - } - - device_property_read_u32(dev, "rotation", &rotation); - - ret = mipi_dbi_spi_init(spi, dbi, rs); - if (ret) - return ret; - - /* override the command function set in mipi_dbi_spi_init() */ - dbi->command = ili9225_dbi_command; - - ret = mipi_dbi_dev_init(dbidev, &ili9225_pipe_funcs, &ili9225_mode, rotation); - if (ret) - return ret; - - drm_mode_config_reset(drm); - - ret = drm_dev_register(drm, 0); - if (ret) - return ret; - - spi_set_drvdata(spi, drm); - - drm_fbdev_generic_setup(drm, 0); - - return 0; -} - -static int ili9225_remove(struct spi_device *spi) -{ - struct drm_device *drm = spi_get_drvdata(spi); - - drm_dev_unplug(drm); - drm_atomic_helper_shutdown(drm); - - return 0; -} - -static void ili9225_shutdown(struct spi_device *spi) -{ - drm_atomic_helper_shutdown(spi_get_drvdata(spi)); -} - -static struct spi_driver ili9225_spi_driver = { - .driver = { - .name = "ili9225", - .owner = THIS_MODULE, - .of_match_table = ili9225_of_match, - }, - .id_table = ili9225_id, - .probe = ili9225_probe, - .remove = ili9225_remove, - .shutdown = ili9225_shutdown, -}; -module_spi_driver(ili9225_spi_driver); - -MODULE_DESCRIPTION("Ilitek ILI9225 DRM driver"); -MODULE_AUTHOR("David Lechner <david@lechnology.com>"); -MODULE_LICENSE("GPL"); diff --git a/drivers/gpu/drm/tinydrm/ili9341.c b/drivers/gpu/drm/tinydrm/ili9341.c deleted file mode 100644 index 33b51dc7faa8..000000000000 --- a/drivers/gpu/drm/tinydrm/ili9341.c +++ /dev/null @@ -1,268 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * DRM driver for Ilitek ILI9341 panels - * - * Copyright 2018 David Lechner <david@lechnology.com> - * - * Based on mi0283qt.c: - * Copyright 2016 Noralf Trønnes - */ - -#include <linux/backlight.h> -#include <linux/delay.h> -#include <linux/gpio/consumer.h> -#include <linux/module.h> -#include <linux/property.h> -#include <linux/spi/spi.h> - -#include <drm/drm_atomic_helper.h> -#include <drm/drm_drv.h> -#include <drm/drm_fb_helper.h> -#include <drm/drm_gem_cma_helper.h> -#include <drm/drm_gem_framebuffer_helper.h> -#include <drm/drm_mipi_dbi.h> -#include <drm/drm_modeset_helper.h> -#include <video/mipi_display.h> - -#define ILI9341_FRMCTR1 0xb1 -#define ILI9341_DISCTRL 0xb6 -#define ILI9341_ETMOD 0xb7 - -#define ILI9341_PWCTRL1 0xc0 -#define ILI9341_PWCTRL2 0xc1 -#define ILI9341_VMCTRL1 0xc5 -#define ILI9341_VMCTRL2 0xc7 -#define ILI9341_PWCTRLA 0xcb -#define ILI9341_PWCTRLB 0xcf - -#define ILI9341_PGAMCTRL 0xe0 -#define ILI9341_NGAMCTRL 0xe1 -#define ILI9341_DTCTRLA 0xe8 -#define ILI9341_DTCTRLB 0xea -#define ILI9341_PWRSEQ 0xed - -#define ILI9341_EN3GAM 0xf2 -#define ILI9341_PUMPCTRL 0xf7 - -#define ILI9341_MADCTL_BGR BIT(3) -#define ILI9341_MADCTL_MV BIT(5) -#define ILI9341_MADCTL_MX BIT(6) -#define ILI9341_MADCTL_MY BIT(7) - -static void yx240qv29_enable(struct drm_simple_display_pipe *pipe, - struct drm_crtc_state *crtc_state, - struct drm_plane_state *plane_state) -{ - struct mipi_dbi_dev *dbidev = drm_to_mipi_dbi_dev(pipe->crtc.dev); - struct mipi_dbi *dbi = &dbidev->dbi; - u8 addr_mode; - int ret, idx; - - if (!drm_dev_enter(pipe->crtc.dev, &idx)) - return; - - DRM_DEBUG_KMS("\n"); - - ret = mipi_dbi_poweron_conditional_reset(dbidev); - if (ret < 0) - goto out_exit; - if (ret == 1) - goto out_enable; - - mipi_dbi_command(dbi, MIPI_DCS_SET_DISPLAY_OFF); - - mipi_dbi_command(dbi, ILI9341_PWCTRLB, 0x00, 0xc1, 0x30); - mipi_dbi_command(dbi, ILI9341_PWRSEQ, 0x64, 0x03, 0x12, 0x81); - mipi_dbi_command(dbi, ILI9341_DTCTRLA, 0x85, 0x00, 0x78); - mipi_dbi_command(dbi, ILI9341_PWCTRLA, 0x39, 0x2c, 0x00, 0x34, 0x02); - mipi_dbi_command(dbi, ILI9341_PUMPCTRL, 0x20); - mipi_dbi_command(dbi, ILI9341_DTCTRLB, 0x00, 0x00); - - /* Power Control */ - mipi_dbi_command(dbi, ILI9341_PWCTRL1, 0x23); - mipi_dbi_command(dbi, ILI9341_PWCTRL2, 0x10); - /* VCOM */ - mipi_dbi_command(dbi, ILI9341_VMCTRL1, 0x3e, 0x28); - mipi_dbi_command(dbi, ILI9341_VMCTRL2, 0x86); - - /* Memory Access Control */ - mipi_dbi_command(dbi, MIPI_DCS_SET_PIXEL_FORMAT, MIPI_DCS_PIXEL_FMT_16BIT); - - /* Frame Rate */ - mipi_dbi_command(dbi, ILI9341_FRMCTR1, 0x00, 0x1b); - - /* Gamma */ - mipi_dbi_command(dbi, ILI9341_EN3GAM, 0x00); - mipi_dbi_command(dbi, MIPI_DCS_SET_GAMMA_CURVE, 0x01); - mipi_dbi_command(dbi, ILI9341_PGAMCTRL, - 0x0f, 0x31, 0x2b, 0x0c, 0x0e, 0x08, 0x4e, 0xf1, - 0x37, 0x07, 0x10, 0x03, 0x0e, 0x09, 0x00); - mipi_dbi_command(dbi, ILI9341_NGAMCTRL, - 0x00, 0x0e, 0x14, 0x03, 0x11, 0x07, 0x31, 0xc1, - 0x48, 0x08, 0x0f, 0x0c, 0x31, 0x36, 0x0f); - - /* DDRAM */ - mipi_dbi_command(dbi, ILI9341_ETMOD, 0x07); - - /* Display */ - mipi_dbi_command(dbi, ILI9341_DISCTRL, 0x08, 0x82, 0x27, 0x00); - mipi_dbi_command(dbi, MIPI_DCS_EXIT_SLEEP_MODE); - msleep(100); - - mipi_dbi_command(dbi, MIPI_DCS_SET_DISPLAY_ON); - msleep(100); - -out_enable: - switch (dbidev->rotation) { - default: - addr_mode = ILI9341_MADCTL_MX; - break; - case 90: - addr_mode = ILI9341_MADCTL_MV; - break; - case 180: - addr_mode = ILI9341_MADCTL_MY; - break; - case 270: - addr_mode = ILI9341_MADCTL_MV | ILI9341_MADCTL_MY | - ILI9341_MADCTL_MX; - break; - } - addr_mode |= ILI9341_MADCTL_BGR; - mipi_dbi_command(dbi, MIPI_DCS_SET_ADDRESS_MODE, addr_mode); - mipi_dbi_enable_flush(dbidev, crtc_state, plane_state); -out_exit: - drm_dev_exit(idx); -} - -static const struct drm_simple_display_pipe_funcs ili9341_pipe_funcs = { - .enable = yx240qv29_enable, - .disable = mipi_dbi_pipe_disable, - .update = mipi_dbi_pipe_update, - .prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb, -}; - -static const struct drm_display_mode yx240qv29_mode = { - DRM_SIMPLE_MODE(240, 320, 37, 49), -}; - -DEFINE_DRM_GEM_CMA_FOPS(ili9341_fops); - -static struct drm_driver ili9341_driver = { - .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC, - .fops = &ili9341_fops, - .release = mipi_dbi_release, - DRM_GEM_CMA_VMAP_DRIVER_OPS, - .debugfs_init = mipi_dbi_debugfs_init, - .name = "ili9341", - .desc = "Ilitek ILI9341", - .date = "20180514", - .major = 1, - .minor = 0, -}; - -static const struct of_device_id ili9341_of_match[] = { - { .compatible = "adafruit,yx240qv29" }, - { } -}; -MODULE_DEVICE_TABLE(of, ili9341_of_match); - -static const struct spi_device_id ili9341_id[] = { - { "yx240qv29", 0 }, - { } -}; -MODULE_DEVICE_TABLE(spi, ili9341_id); - -static int ili9341_probe(struct spi_device *spi) -{ - struct device *dev = &spi->dev; - struct mipi_dbi_dev *dbidev; - struct drm_device *drm; - struct mipi_dbi *dbi; - struct gpio_desc *dc; - u32 rotation = 0; - int ret; - - dbidev = kzalloc(sizeof(*dbidev), GFP_KERNEL); - if (!dbidev) - return -ENOMEM; - - dbi = &dbidev->dbi; - drm = &dbidev->drm; - ret = devm_drm_dev_init(dev, drm, &ili9341_driver); - if (ret) { - kfree(dbidev); - return ret; - } - - drm_mode_config_init(drm); - - dbi->reset = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH); - if (IS_ERR(dbi->reset)) { - DRM_DEV_ERROR(dev, "Failed to get gpio 'reset'\n"); - return PTR_ERR(dbi->reset); - } - - dc = devm_gpiod_get_optional(dev, "dc", GPIOD_OUT_LOW); - if (IS_ERR(dc)) { - DRM_DEV_ERROR(dev, "Failed to get gpio 'dc'\n"); - return PTR_ERR(dc); - } - - dbidev->backlight = devm_of_find_backlight(dev); - if (IS_ERR(dbidev->backlight)) - return PTR_ERR(dbidev->backlight); - - device_property_read_u32(dev, "rotation", &rotation); - - ret = mipi_dbi_spi_init(spi, dbi, dc); - if (ret) - return ret; - - ret = mipi_dbi_dev_init(dbidev, &ili9341_pipe_funcs, &yx240qv29_mode, rotation); - if (ret) - return ret; - - drm_mode_config_reset(drm); - - ret = drm_dev_register(drm, 0); - if (ret) - return ret; - - spi_set_drvdata(spi, drm); - - drm_fbdev_generic_setup(drm, 0); - - return 0; -} - -static int ili9341_remove(struct spi_device *spi) -{ - struct drm_device *drm = spi_get_drvdata(spi); - - drm_dev_unplug(drm); - drm_atomic_helper_shutdown(drm); - - return 0; -} - -static void ili9341_shutdown(struct spi_device *spi) -{ - drm_atomic_helper_shutdown(spi_get_drvdata(spi)); -} - -static struct spi_driver ili9341_spi_driver = { - .driver = { - .name = "ili9341", - .of_match_table = ili9341_of_match, - }, - .id_table = ili9341_id, - .probe = ili9341_probe, - .remove = ili9341_remove, - .shutdown = ili9341_shutdown, -}; -module_spi_driver(ili9341_spi_driver); - -MODULE_DESCRIPTION("Ilitek ILI9341 DRM driver"); -MODULE_AUTHOR("David Lechner <david@lechnology.com>"); -MODULE_LICENSE("GPL"); diff --git a/drivers/gpu/drm/tinydrm/mi0283qt.c b/drivers/gpu/drm/tinydrm/mi0283qt.c deleted file mode 100644 index e2cfd9a17143..000000000000 --- a/drivers/gpu/drm/tinydrm/mi0283qt.c +++ /dev/null @@ -1,294 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * DRM driver for Multi-Inno MI0283QT panels - * - * Copyright 2016 Noralf Trønnes - */ - -#include <linux/backlight.h> -#include <linux/delay.h> -#include <linux/gpio/consumer.h> -#include <linux/module.h> -#include <linux/property.h> -#include <linux/regulator/consumer.h> -#include <linux/spi/spi.h> - -#include <drm/drm_atomic_helper.h> -#include <drm/drm_drv.h> -#include <drm/drm_fb_helper.h> -#include <drm/drm_gem_cma_helper.h> -#include <drm/drm_gem_framebuffer_helper.h> -#include <drm/drm_mipi_dbi.h> -#include <drm/drm_modeset_helper.h> -#include <video/mipi_display.h> - -#define ILI9341_FRMCTR1 0xb1 -#define ILI9341_DISCTRL 0xb6 -#define ILI9341_ETMOD 0xb7 - -#define ILI9341_PWCTRL1 0xc0 -#define ILI9341_PWCTRL2 0xc1 -#define ILI9341_VMCTRL1 0xc5 -#define ILI9341_VMCTRL2 0xc7 -#define ILI9341_PWCTRLA 0xcb -#define ILI9341_PWCTRLB 0xcf - -#define ILI9341_PGAMCTRL 0xe0 -#define ILI9341_NGAMCTRL 0xe1 -#define ILI9341_DTCTRLA 0xe8 -#define ILI9341_DTCTRLB 0xea -#define ILI9341_PWRSEQ 0xed - -#define ILI9341_EN3GAM 0xf2 -#define ILI9341_PUMPCTRL 0xf7 - -#define ILI9341_MADCTL_BGR BIT(3) -#define ILI9341_MADCTL_MV BIT(5) -#define ILI9341_MADCTL_MX BIT(6) -#define ILI9341_MADCTL_MY BIT(7) - -static void mi0283qt_enable(struct drm_simple_display_pipe *pipe, - struct drm_crtc_state *crtc_state, - struct drm_plane_state *plane_state) -{ - struct mipi_dbi_dev *dbidev = drm_to_mipi_dbi_dev(pipe->crtc.dev); - struct mipi_dbi *dbi = &dbidev->dbi; - u8 addr_mode; - int ret, idx; - - if (!drm_dev_enter(pipe->crtc.dev, &idx)) - return; - - DRM_DEBUG_KMS("\n"); - - ret = mipi_dbi_poweron_conditional_reset(dbidev); - if (ret < 0) - goto out_exit; - if (ret == 1) - goto out_enable; - - mipi_dbi_command(dbi, MIPI_DCS_SET_DISPLAY_OFF); - - mipi_dbi_command(dbi, ILI9341_PWCTRLB, 0x00, 0x83, 0x30); - mipi_dbi_command(dbi, ILI9341_PWRSEQ, 0x64, 0x03, 0x12, 0x81); - mipi_dbi_command(dbi, ILI9341_DTCTRLA, 0x85, 0x01, 0x79); - mipi_dbi_command(dbi, ILI9341_PWCTRLA, 0x39, 0x2c, 0x00, 0x34, 0x02); - mipi_dbi_command(dbi, ILI9341_PUMPCTRL, 0x20); - mipi_dbi_command(dbi, ILI9341_DTCTRLB, 0x00, 0x00); - - /* Power Control */ - mipi_dbi_command(dbi, ILI9341_PWCTRL1, 0x26); - mipi_dbi_command(dbi, ILI9341_PWCTRL2, 0x11); - /* VCOM */ - mipi_dbi_command(dbi, ILI9341_VMCTRL1, 0x35, 0x3e); - mipi_dbi_command(dbi, ILI9341_VMCTRL2, 0xbe); - - /* Memory Access Control */ - mipi_dbi_command(dbi, MIPI_DCS_SET_PIXEL_FORMAT, MIPI_DCS_PIXEL_FMT_16BIT); - - /* Frame Rate */ - mipi_dbi_command(dbi, ILI9341_FRMCTR1, 0x00, 0x1b); - - /* Gamma */ - mipi_dbi_command(dbi, ILI9341_EN3GAM, 0x08); - mipi_dbi_command(dbi, MIPI_DCS_SET_GAMMA_CURVE, 0x01); - mipi_dbi_command(dbi, ILI9341_PGAMCTRL, - 0x1f, 0x1a, 0x18, 0x0a, 0x0f, 0x06, 0x45, 0x87, - 0x32, 0x0a, 0x07, 0x02, 0x07, 0x05, 0x00); - mipi_dbi_command(dbi, ILI9341_NGAMCTRL, - 0x00, 0x25, 0x27, 0x05, 0x10, 0x09, 0x3a, 0x78, - 0x4d, 0x05, 0x18, 0x0d, 0x38, 0x3a, 0x1f); - - /* DDRAM */ - mipi_dbi_command(dbi, ILI9341_ETMOD, 0x07); - - /* Display */ - mipi_dbi_command(dbi, ILI9341_DISCTRL, 0x0a, 0x82, 0x27, 0x00); - mipi_dbi_command(dbi, MIPI_DCS_EXIT_SLEEP_MODE); - msleep(100); - - mipi_dbi_command(dbi, MIPI_DCS_SET_DISPLAY_ON); - msleep(100); - -out_enable: - /* The PiTFT (ili9340) has a hardware reset circuit that - * resets only on power-on and not on each reboot through - * a gpio like the rpi-display does. - * As a result, we need to always apply the rotation value - * regardless of the display "on/off" state. - */ - switch (dbidev->rotation) { - default: - addr_mode = ILI9341_MADCTL_MV | ILI9341_MADCTL_MY | - ILI9341_MADCTL_MX; - break; - case 90: - addr_mode = ILI9341_MADCTL_MY; - break; - case 180: - addr_mode = ILI9341_MADCTL_MV; - break; - case 270: - addr_mode = ILI9341_MADCTL_MX; - break; - } - addr_mode |= ILI9341_MADCTL_BGR; - mipi_dbi_command(dbi, MIPI_DCS_SET_ADDRESS_MODE, addr_mode); - mipi_dbi_enable_flush(dbidev, crtc_state, plane_state); -out_exit: - drm_dev_exit(idx); -} - -static const struct drm_simple_display_pipe_funcs mi0283qt_pipe_funcs = { - .enable = mi0283qt_enable, - .disable = mipi_dbi_pipe_disable, - .update = mipi_dbi_pipe_update, - .prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb, -}; - -static const struct drm_display_mode mi0283qt_mode = { - DRM_SIMPLE_MODE(320, 240, 58, 43), -}; - -DEFINE_DRM_GEM_CMA_FOPS(mi0283qt_fops); - -static struct drm_driver mi0283qt_driver = { - .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC, - .fops = &mi0283qt_fops, - .release = mipi_dbi_release, - DRM_GEM_CMA_VMAP_DRIVER_OPS, - .debugfs_init = mipi_dbi_debugfs_init, - .name = "mi0283qt", - .desc = "Multi-Inno MI0283QT", - .date = "20160614", - .major = 1, - .minor = 0, -}; - -static const struct of_device_id mi0283qt_of_match[] = { - { .compatible = "multi-inno,mi0283qt" }, - {}, -}; -MODULE_DEVICE_TABLE(of, mi0283qt_of_match); - -static const struct spi_device_id mi0283qt_id[] = { - { "mi0283qt", 0 }, - { }, -}; -MODULE_DEVICE_TABLE(spi, mi0283qt_id); - -static int mi0283qt_probe(struct spi_device *spi) -{ - struct device *dev = &spi->dev; - struct mipi_dbi_dev *dbidev; - struct drm_device *drm; - struct mipi_dbi *dbi; - struct gpio_desc *dc; - u32 rotation = 0; - int ret; - - dbidev = kzalloc(sizeof(*dbidev), GFP_KERNEL); - if (!dbidev) - return -ENOMEM; - - dbi = &dbidev->dbi; - drm = &dbidev->drm; - ret = devm_drm_dev_init(dev, drm, &mi0283qt_driver); - if (ret) { - kfree(dbidev); - return ret; - } - - drm_mode_config_init(drm); - - dbi->reset = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH); - if (IS_ERR(dbi->reset)) { - DRM_DEV_ERROR(dev, "Failed to get gpio 'reset'\n"); - return PTR_ERR(dbi->reset); - } - - dc = devm_gpiod_get_optional(dev, "dc", GPIOD_OUT_LOW); - if (IS_ERR(dc)) { - DRM_DEV_ERROR(dev, "Failed to get gpio 'dc'\n"); - return PTR_ERR(dc); - } - - dbidev->regulator = devm_regulator_get(dev, "power"); - if (IS_ERR(dbidev->regulator)) - return PTR_ERR(dbidev->regulator); - - dbidev->backlight = devm_of_find_backlight(dev); - if (IS_ERR(dbidev->backlight)) - return PTR_ERR(dbidev->backlight); - - device_property_read_u32(dev, "rotation", &rotation); - - ret = mipi_dbi_spi_init(spi, dbi, dc); - if (ret) - return ret; - - ret = mipi_dbi_dev_init(dbidev, &mi0283qt_pipe_funcs, &mi0283qt_mode, rotation); - if (ret) - return ret; - - drm_mode_config_reset(drm); - - ret = drm_dev_register(drm, 0); - if (ret) - return ret; - - spi_set_drvdata(spi, drm); - - drm_fbdev_generic_setup(drm, 0); - - return 0; -} - -static int mi0283qt_remove(struct spi_device *spi) -{ - struct drm_device *drm = spi_get_drvdata(spi); - - drm_dev_unplug(drm); - drm_atomic_helper_shutdown(drm); - - return 0; -} - -static void mi0283qt_shutdown(struct spi_device *spi) -{ - drm_atomic_helper_shutdown(spi_get_drvdata(spi)); -} - -static int __maybe_unused mi0283qt_pm_suspend(struct device *dev) -{ - return drm_mode_config_helper_suspend(dev_get_drvdata(dev)); -} - -static int __maybe_unused mi0283qt_pm_resume(struct device *dev) -{ - drm_mode_config_helper_resume(dev_get_drvdata(dev)); - - return 0; -} - -static const struct dev_pm_ops mi0283qt_pm_ops = { - SET_SYSTEM_SLEEP_PM_OPS(mi0283qt_pm_suspend, mi0283qt_pm_resume) -}; - -static struct spi_driver mi0283qt_spi_driver = { - .driver = { - .name = "mi0283qt", - .owner = THIS_MODULE, - .of_match_table = mi0283qt_of_match, - .pm = &mi0283qt_pm_ops, - }, - .id_table = mi0283qt_id, - .probe = mi0283qt_probe, - .remove = mi0283qt_remove, - .shutdown = mi0283qt_shutdown, -}; -module_spi_driver(mi0283qt_spi_driver); - -MODULE_DESCRIPTION("Multi-Inno MI0283QT DRM driver"); -MODULE_AUTHOR("Noralf Trønnes"); -MODULE_LICENSE("GPL"); diff --git a/drivers/gpu/drm/tinydrm/repaper.c b/drivers/gpu/drm/tinydrm/repaper.c deleted file mode 100644 index 76d179200775..000000000000 --- a/drivers/gpu/drm/tinydrm/repaper.c +++ /dev/null @@ -1,1212 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * DRM driver for Pervasive Displays RePaper branded e-ink panels - * - * Copyright 2013-2017 Pervasive Displays, Inc. - * Copyright 2017 Noralf Trønnes - * - * The driver supports: - * Material Film: Aurora Mb (V231) - * Driver IC: G2 (eTC) - * - * The controller code was taken from the userspace driver: - * https://github.com/repaper/gratis - */ - -#include <linux/delay.h> -#include <linux/dma-buf.h> -#include <linux/gpio/consumer.h> -#include <linux/module.h> -#include <linux/of_device.h> -#include <linux/sched/clock.h> -#include <linux/spi/spi.h> -#include <linux/thermal.h> - -#include <drm/drm_atomic_helper.h> -#include <drm/drm_connector.h> -#include <drm/drm_damage_helper.h> -#include <drm/drm_drv.h> -#include <drm/drm_fb_cma_helper.h> -#include <drm/drm_fb_helper.h> -#include <drm/drm_format_helper.h> -#include <drm/drm_gem_cma_helper.h> -#include <drm/drm_gem_framebuffer_helper.h> -#include <drm/drm_modes.h> -#include <drm/drm_rect.h> -#include <drm/drm_vblank.h> -#include <drm/drm_probe_helper.h> -#include <drm/drm_simple_kms_helper.h> - -#define REPAPER_RID_G2_COG_ID 0x12 - -enum repaper_model { - E1144CS021 = 1, - E1190CS021, - E2200CS021, - E2271CS021, -}; - -enum repaper_stage { /* Image pixel -> Display pixel */ - REPAPER_COMPENSATE, /* B -> W, W -> B (Current Image) */ - REPAPER_WHITE, /* B -> N, W -> W (Current Image) */ - REPAPER_INVERSE, /* B -> N, W -> B (New Image) */ - REPAPER_NORMAL /* B -> B, W -> W (New Image) */ -}; - -enum repaper_epd_border_byte { - REPAPER_BORDER_BYTE_NONE, - REPAPER_BORDER_BYTE_ZERO, - REPAPER_BORDER_BYTE_SET, -}; - -struct repaper_epd { - struct drm_device drm; - struct drm_simple_display_pipe pipe; - const struct drm_display_mode *mode; - struct drm_connector connector; - struct spi_device *spi; - - struct gpio_desc *panel_on; - struct gpio_desc *border; - struct gpio_desc *discharge; - struct gpio_desc *reset; - struct gpio_desc *busy; - - struct thermal_zone_device *thermal; - - unsigned int height; - unsigned int width; - unsigned int bytes_per_scan; - const u8 *channel_select; - unsigned int stage_time; - unsigned int factored_stage_time; - bool middle_scan; - bool pre_border_byte; - enum repaper_epd_border_byte border_byte; - - u8 *line_buffer; - void *current_frame; - - bool enabled; - bool cleared; - bool partial; -}; - -static inline struct repaper_epd *drm_to_epd(struct drm_device *drm) -{ - return container_of(drm, struct repaper_epd, drm); -} - -static int repaper_spi_transfer(struct spi_device *spi, u8 header, - const void *tx, void *rx, size_t len) -{ - void *txbuf = NULL, *rxbuf = NULL; - struct spi_transfer tr[2] = {}; - u8 *headerbuf; - int ret; - - headerbuf = kmalloc(1, GFP_KERNEL); - if (!headerbuf) - return -ENOMEM; - - headerbuf[0] = header; - tr[0].tx_buf = headerbuf; - tr[0].len = 1; - - /* Stack allocated tx? */ - if (tx && len <= 32) { - txbuf = kmemdup(tx, len, GFP_KERNEL); - if (!txbuf) { - ret = -ENOMEM; - goto out_free; - } - } - - if (rx) { - rxbuf = kmalloc(len, GFP_KERNEL); - if (!rxbuf) { - ret = -ENOMEM; - goto out_free; - } - } - - tr[1].tx_buf = txbuf ? txbuf : tx; - tr[1].rx_buf = rxbuf; - tr[1].len = len; - - ndelay(80); - ret = spi_sync_transfer(spi, tr, 2); - if (rx && !ret) - memcpy(rx, rxbuf, len); - -out_free: - kfree(headerbuf); - kfree(txbuf); - kfree(rxbuf); - - return ret; -} - -static int repaper_write_buf(struct spi_device *spi, u8 reg, - const u8 *buf, size_t len) -{ - int ret; - - ret = repaper_spi_transfer(spi, 0x70, ®, NULL, 1); - if (ret) - return ret; - - return repaper_spi_transfer(spi, 0x72, buf, NULL, len); -} - -static int repaper_write_val(struct spi_device *spi, u8 reg, u8 val) -{ - return repaper_write_buf(spi, reg, &val, 1); -} - -static int repaper_read_val(struct spi_device *spi, u8 reg) -{ - int ret; - u8 val; - - ret = repaper_spi_transfer(spi, 0x70, ®, NULL, 1); - if (ret) - return ret; - - ret = repaper_spi_transfer(spi, 0x73, NULL, &val, 1); - - return ret ? ret : val; -} - -static int repaper_read_id(struct spi_device *spi) -{ - int ret; - u8 id; - - ret = repaper_spi_transfer(spi, 0x71, NULL, &id, 1); - - return ret ? ret : id; -} - -static void repaper_spi_mosi_low(struct spi_device *spi) -{ - const u8 buf[1] = { 0 }; - - spi_write(spi, buf, 1); -} - -/* pixels on display are numbered from 1 so even is actually bits 1,3,5,... */ -static void repaper_even_pixels(struct repaper_epd *epd, u8 **pp, - const u8 *data, u8 fixed_value, const u8 *mask, - enum repaper_stage stage) -{ - unsigned int b; - - for (b = 0; b < (epd->width / 8); b++) { - if (data) { - u8 pixels = data[b] & 0xaa; - u8 pixel_mask = 0xff; - u8 p1, p2, p3, p4; - - if (mask) { - pixel_mask = (mask[b] ^ pixels) & 0xaa; - pixel_mask |= pixel_mask >> 1; - } - - switch (stage) { - case REPAPER_COMPENSATE: /* B -> W, W -> B (Current) */ - pixels = 0xaa | ((pixels ^ 0xaa) >> 1); - break; - case REPAPER_WHITE: /* B -> N, W -> W (Current) */ - pixels = 0x55 + ((pixels ^ 0xaa) >> 1); - break; - case REPAPER_INVERSE: /* B -> N, W -> B (New) */ - pixels = 0x55 | (pixels ^ 0xaa); - break; - case REPAPER_NORMAL: /* B -> B, W -> W (New) */ - pixels = 0xaa | (pixels >> 1); - break; - } - - pixels = (pixels & pixel_mask) | (~pixel_mask & 0x55); - p1 = (pixels >> 6) & 0x03; - p2 = (pixels >> 4) & 0x03; - p3 = (pixels >> 2) & 0x03; - p4 = (pixels >> 0) & 0x03; - pixels = (p1 << 0) | (p2 << 2) | (p3 << 4) | (p4 << 6); - *(*pp)++ = pixels; - } else { - *(*pp)++ = fixed_value; - } - } -} - -/* pixels on display are numbered from 1 so odd is actually bits 0,2,4,... */ -static void repaper_odd_pixels(struct repaper_epd *epd, u8 **pp, - const u8 *data, u8 fixed_value, const u8 *mask, - enum repaper_stage stage) -{ - unsigned int b; - - for (b = epd->width / 8; b > 0; b--) { - if (data) { - u8 pixels = data[b - 1] & 0x55; - u8 pixel_mask = 0xff; - - if (mask) { - pixel_mask = (mask[b - 1] ^ pixels) & 0x55; - pixel_mask |= pixel_mask << 1; - } - - switch (stage) { - case REPAPER_COMPENSATE: /* B -> W, W -> B (Current) */ - pixels = 0xaa | (pixels ^ 0x55); - break; - case REPAPER_WHITE: /* B -> N, W -> W (Current) */ - pixels = 0x55 + (pixels ^ 0x55); - break; - case REPAPER_INVERSE: /* B -> N, W -> B (New) */ - pixels = 0x55 | ((pixels ^ 0x55) << 1); - break; - case REPAPER_NORMAL: /* B -> B, W -> W (New) */ - pixels = 0xaa | pixels; - break; - } - - pixels = (pixels & pixel_mask) | (~pixel_mask & 0x55); - *(*pp)++ = pixels; - } else { - *(*pp)++ = fixed_value; - } - } -} - -/* interleave bits: (byte)76543210 -> (16 bit).7.6.5.4.3.2.1 */ -static inline u16 repaper_interleave_bits(u16 value) -{ - value = (value | (value << 4)) & 0x0f0f; - value = (value | (value << 2)) & 0x3333; - value = (value | (value << 1)) & 0x5555; - - return value; -} - -/* pixels on display are numbered from 1 */ -static void repaper_all_pixels(struct repaper_epd *epd, u8 **pp, - const u8 *data, u8 fixed_value, const u8 *mask, - enum repaper_stage stage) -{ - unsigned int b; - - for (b = epd->width / 8; b > 0; b--) { - if (data) { - u16 pixels = repaper_interleave_bits(data[b - 1]); - u16 pixel_mask = 0xffff; - - if (mask) { - pixel_mask = repaper_interleave_bits(mask[b - 1]); - - pixel_mask = (pixel_mask ^ pixels) & 0x5555; - pixel_mask |= pixel_mask << 1; - } - - switch (stage) { - case REPAPER_COMPENSATE: /* B -> W, W -> B (Current) */ - pixels = 0xaaaa | (pixels ^ 0x5555); - break; - case REPAPER_WHITE: /* B -> N, W -> W (Current) */ - pixels = 0x5555 + (pixels ^ 0x5555); - break; - case REPAPER_INVERSE: /* B -> N, W -> B (New) */ - pixels = 0x5555 | ((pixels ^ 0x5555) << 1); - break; - case REPAPER_NORMAL: /* B -> B, W -> W (New) */ - pixels = 0xaaaa | pixels; - break; - } - - pixels = (pixels & pixel_mask) | (~pixel_mask & 0x5555); - *(*pp)++ = pixels >> 8; - *(*pp)++ = pixels; - } else { - *(*pp)++ = fixed_value; - *(*pp)++ = fixed_value; - } - } -} - -/* output one line of scan and data bytes to the display */ -static void repaper_one_line(struct repaper_epd *epd, unsigned int line, - const u8 *data, u8 fixed_value, const u8 *mask, - enum repaper_stage stage) -{ - u8 *p = epd->line_buffer; - unsigned int b; - - repaper_spi_mosi_low(epd->spi); - - if (epd->pre_border_byte) - *p++ = 0x00; - - if (epd->middle_scan) { - /* data bytes */ - repaper_odd_pixels(epd, &p, data, fixed_value, mask, stage); - - /* scan line */ - for (b = epd->bytes_per_scan; b > 0; b--) { - if (line / 4 == b - 1) - *p++ = 0x03 << (2 * (line & 0x03)); - else - *p++ = 0x00; - } - - /* data bytes */ - repaper_even_pixels(epd, &p, data, fixed_value, mask, stage); - } else { - /* - * even scan line, but as lines on display are numbered from 1, - * line: 1,3,5,... - */ - for (b = 0; b < epd->bytes_per_scan; b++) { - if (0 != (line & 0x01) && line / 8 == b) - *p++ = 0xc0 >> (line & 0x06); - else - *p++ = 0x00; - } - - /* data bytes */ - repaper_all_pixels(epd, &p, data, fixed_value, mask, stage); - - /* - * odd scan line, but as lines on display are numbered from 1, - * line: 0,2,4,6,... - */ - for (b = epd->bytes_per_scan; b > 0; b--) { - if (0 == (line & 0x01) && line / 8 == b - 1) - *p++ = 0x03 << (line & 0x06); - else - *p++ = 0x00; - } - } - - switch (epd->border_byte) { - case REPAPER_BORDER_BYTE_NONE: - break; - - case REPAPER_BORDER_BYTE_ZERO: - *p++ = 0x00; - break; - - case REPAPER_BORDER_BYTE_SET: - switch (stage) { - case REPAPER_COMPENSATE: - case REPAPER_WHITE: - case REPAPER_INVERSE: - *p++ = 0x00; - break; - case REPAPER_NORMAL: - *p++ = 0xaa; - break; - } - break; - } - - repaper_write_buf(epd->spi, 0x0a, epd->line_buffer, - p - epd->line_buffer); - - /* Output data to panel */ - repaper_write_val(epd->spi, 0x02, 0x07); - - repaper_spi_mosi_low(epd->spi); -} - -static void repaper_frame_fixed(struct repaper_epd *epd, u8 fixed_value, - enum repaper_stage stage) -{ - unsigned int line; - - for (line = 0; line < epd->height; line++) - repaper_one_line(epd, line, NULL, fixed_value, NULL, stage); -} - -static void repaper_frame_data(struct repaper_epd *epd, const u8 *image, - const u8 *mask, enum repaper_stage stage) -{ - unsigned int line; - - if (!mask) { - for (line = 0; line < epd->height; line++) { - repaper_one_line(epd, line, - &image[line * (epd->width / 8)], - 0, NULL, stage); - } - } else { - for (line = 0; line < epd->height; line++) { - size_t n = line * epd->width / 8; - - repaper_one_line(epd, line, &image[n], 0, &mask[n], - stage); - } - } -} - -static void repaper_frame_fixed_repeat(struct repaper_epd *epd, u8 fixed_value, - enum repaper_stage stage) -{ - u64 start = local_clock(); - u64 end = start + (epd->factored_stage_time * 1000 * 1000); - - do { - repaper_frame_fixed(epd, fixed_value, stage); - } while (local_clock() < end); -} - -static void repaper_frame_data_repeat(struct repaper_epd *epd, const u8 *image, - const u8 *mask, enum repaper_stage stage) -{ - u64 start = local_clock(); - u64 end = start + (epd->factored_stage_time * 1000 * 1000); - - do { - repaper_frame_data(epd, image, mask, stage); - } while (local_clock() < end); -} - -static void repaper_get_temperature(struct repaper_epd *epd) -{ - int ret, temperature = 0; - unsigned int factor10x; - - if (!epd->thermal) - return; - - ret = thermal_zone_get_temp(epd->thermal, &temperature); - if (ret) { - DRM_DEV_ERROR(&epd->spi->dev, "Failed to get temperature (%d)\n", ret); - return; - } - - temperature /= 1000; - - if (temperature <= -10) - factor10x = 170; - else if (temperature <= -5) - factor10x = 120; - else if (temperature <= 5) - factor10x = 80; - else if (temperature <= 10) - factor10x = 40; - else if (temperature <= 15) - factor10x = 30; - else if (temperature <= 20) - factor10x = 20; - else if (temperature <= 40) - factor10x = 10; - else - factor10x = 7; - - epd->factored_stage_time = epd->stage_time * factor10x / 10; -} - -static void repaper_gray8_to_mono_reversed(u8 *buf, u32 width, u32 height) -{ - u8 *gray8 = buf, *mono = buf; - int y, xb, i; - - for (y = 0; y < height; y++) - for (xb = 0; xb < width / 8; xb++) { - u8 byte = 0x00; - - for (i = 0; i < 8; i++) { - int x = xb * 8 + i; - - byte >>= 1; - if (gray8[y * width + x] >> 7) - byte |= BIT(7); - } - *mono++ = byte; - } -} - -static int repaper_fb_dirty(struct drm_framebuffer *fb) -{ - struct drm_gem_cma_object *cma_obj = drm_fb_cma_get_gem_obj(fb, 0); - struct dma_buf_attachment *import_attach = cma_obj->base.import_attach; - struct repaper_epd *epd = drm_to_epd(fb->dev); - struct drm_rect clip; - int idx, ret = 0; - u8 *buf = NULL; - - if (!epd->enabled) - return 0; - - if (!drm_dev_enter(fb->dev, &idx)) - return -ENODEV; - - /* repaper can't do partial updates */ - clip.x1 = 0; - clip.x2 = fb->width; - clip.y1 = 0; - clip.y2 = fb->height; - - repaper_get_temperature(epd); - - DRM_DEBUG("Flushing [FB:%d] st=%ums\n", fb->base.id, - epd->factored_stage_time); - - buf = kmalloc_array(fb->width, fb->height, GFP_KERNEL); - if (!buf) { - ret = -ENOMEM; - goto out_exit; - } - - if (import_attach) { - ret = dma_buf_begin_cpu_access(import_attach->dmabuf, - DMA_FROM_DEVICE); - if (ret) - goto out_free; - } - - drm_fb_xrgb8888_to_gray8(buf, cma_obj->vaddr, fb, &clip); - - if (import_attach) { - ret = dma_buf_end_cpu_access(import_attach->dmabuf, - DMA_FROM_DEVICE); - if (ret) - goto out_free; - } - - repaper_gray8_to_mono_reversed(buf, fb->width, fb->height); - - if (epd->partial) { - repaper_frame_data_repeat(epd, buf, epd->current_frame, - REPAPER_NORMAL); - } else if (epd->cleared) { - repaper_frame_data_repeat(epd, epd->current_frame, NULL, - REPAPER_COMPENSATE); - repaper_frame_data_repeat(epd, epd->current_frame, NULL, - REPAPER_WHITE); - repaper_frame_data_repeat(epd, buf, NULL, REPAPER_INVERSE); - repaper_frame_data_repeat(epd, buf, NULL, REPAPER_NORMAL); - - epd->partial = true; - } else { - /* Clear display (anything -> white) */ - repaper_frame_fixed_repeat(epd, 0xff, REPAPER_COMPENSATE); - repaper_frame_fixed_repeat(epd, 0xff, REPAPER_WHITE); - repaper_frame_fixed_repeat(epd, 0xaa, REPAPER_INVERSE); - repaper_frame_fixed_repeat(epd, 0xaa, REPAPER_NORMAL); - - /* Assuming a clear (white) screen output an image */ - repaper_frame_fixed_repeat(epd, 0xaa, REPAPER_COMPENSATE); - repaper_frame_fixed_repeat(epd, 0xaa, REPAPER_WHITE); - repaper_frame_data_repeat(epd, buf, NULL, REPAPER_INVERSE); - repaper_frame_data_repeat(epd, buf, NULL, REPAPER_NORMAL); - - epd->cleared = true; - epd->partial = true; - } - - memcpy(epd->current_frame, buf, fb->width * fb->height / 8); - - /* - * An extra frame write is needed if pixels are set in the bottom line, - * or else grey lines rises up from the pixels - */ - if (epd->pre_border_byte) { - unsigned int x; - - for (x = 0; x < (fb->width / 8); x++) - if (buf[x + (fb->width * (fb->height - 1) / 8)]) { - repaper_frame_data_repeat(epd, buf, - epd->current_frame, - REPAPER_NORMAL); - break; - } - } - -out_free: - kfree(buf); -out_exit: - drm_dev_exit(idx); - - return ret; -} - -static void power_off(struct repaper_epd *epd) -{ - /* Turn off power and all signals */ - gpiod_set_value_cansleep(epd->reset, 0); - gpiod_set_value_cansleep(epd->panel_on, 0); - if (epd->border) - gpiod_set_value_cansleep(epd->border, 0); - - /* Ensure SPI MOSI and CLOCK are Low before CS Low */ - repaper_spi_mosi_low(epd->spi); - - /* Discharge pulse */ - gpiod_set_value_cansleep(epd->discharge, 1); - msleep(150); - gpiod_set_value_cansleep(epd->discharge, 0); -} - -static void repaper_pipe_enable(struct drm_simple_display_pipe *pipe, - struct drm_crtc_state *crtc_state, - struct drm_plane_state *plane_state) -{ - struct repaper_epd *epd = drm_to_epd(pipe->crtc.dev); - struct spi_device *spi = epd->spi; - struct device *dev = &spi->dev; - bool dc_ok = false; - int i, ret, idx; - - if (!drm_dev_enter(pipe->crtc.dev, &idx)) - return; - - DRM_DEBUG_DRIVER("\n"); - - /* Power up sequence */ - gpiod_set_value_cansleep(epd->reset, 0); - gpiod_set_value_cansleep(epd->panel_on, 0); - gpiod_set_value_cansleep(epd->discharge, 0); - if (epd->border) - gpiod_set_value_cansleep(epd->border, 0); - repaper_spi_mosi_low(spi); - usleep_range(5000, 10000); - - gpiod_set_value_cansleep(epd->panel_on, 1); - /* - * This delay comes from the repaper.org userspace driver, it's not - * mentioned in the datasheet. - */ - usleep_range(10000, 15000); - gpiod_set_value_cansleep(epd->reset, 1); - if (epd->border) - gpiod_set_value_cansleep(epd->border, 1); - usleep_range(5000, 10000); - gpiod_set_value_cansleep(epd->reset, 0); - usleep_range(5000, 10000); - gpiod_set_value_cansleep(epd->reset, 1); - usleep_range(5000, 10000); - - /* Wait for COG to become ready */ - for (i = 100; i > 0; i--) { - if (!gpiod_get_value_cansleep(epd->busy)) - break; - - usleep_range(10, 100); - } - - if (!i) { - DRM_DEV_ERROR(dev, "timeout waiting for panel to become ready.\n"); - power_off(epd); - goto out_exit; - } - - repaper_read_id(spi); - ret = repaper_read_id(spi); - if (ret != REPAPER_RID_G2_COG_ID) { - if (ret < 0) - dev_err(dev, "failed to read chip (%d)\n", ret); - else - dev_err(dev, "wrong COG ID 0x%02x\n", ret); - power_off(epd); - goto out_exit; - } - - /* Disable OE */ - repaper_write_val(spi, 0x02, 0x40); - - ret = repaper_read_val(spi, 0x0f); - if (ret < 0 || !(ret & 0x80)) { - if (ret < 0) - DRM_DEV_ERROR(dev, "failed to read chip (%d)\n", ret); - else - DRM_DEV_ERROR(dev, "panel is reported broken\n"); - power_off(epd); - goto out_exit; - } - - /* Power saving mode */ - repaper_write_val(spi, 0x0b, 0x02); - /* Channel select */ - repaper_write_buf(spi, 0x01, epd->channel_select, 8); - /* High power mode osc */ - repaper_write_val(spi, 0x07, 0xd1); - /* Power setting */ - repaper_write_val(spi, 0x08, 0x02); - /* Vcom level */ - repaper_write_val(spi, 0x09, 0xc2); - /* Power setting */ - repaper_write_val(spi, 0x04, 0x03); - /* Driver latch on */ - repaper_write_val(spi, 0x03, 0x01); - /* Driver latch off */ - repaper_write_val(spi, 0x03, 0x00); - usleep_range(5000, 10000); - - /* Start chargepump */ - for (i = 0; i < 4; ++i) { - /* Charge pump positive voltage on - VGH/VDL on */ - repaper_write_val(spi, 0x05, 0x01); - msleep(240); - - /* Charge pump negative voltage on - VGL/VDL on */ - repaper_write_val(spi, 0x05, 0x03); - msleep(40); - - /* Charge pump Vcom on - Vcom driver on */ - repaper_write_val(spi, 0x05, 0x0f); - msleep(40); - - /* check DC/DC */ - ret = repaper_read_val(spi, 0x0f); - if (ret < 0) { - DRM_DEV_ERROR(dev, "failed to read chip (%d)\n", ret); - power_off(epd); - goto out_exit; - } - - if (ret & 0x40) { - dc_ok = true; - break; - } - } - - if (!dc_ok) { - DRM_DEV_ERROR(dev, "dc/dc failed\n"); - power_off(epd); - goto out_exit; - } - - /* - * Output enable to disable - * The userspace driver sets this to 0x04, but the datasheet says 0x06 - */ - repaper_write_val(spi, 0x02, 0x04); - - epd->enabled = true; - epd->partial = false; -out_exit: - drm_dev_exit(idx); -} - -static void repaper_pipe_disable(struct drm_simple_display_pipe *pipe) -{ - struct repaper_epd *epd = drm_to_epd(pipe->crtc.dev); - struct spi_device *spi = epd->spi; - unsigned int line; - - /* - * This callback is not protected by drm_dev_enter/exit since we want to - * turn off the display on regular driver unload. It's highly unlikely - * that the underlying SPI controller is gone should this be called after - * unplug. - */ - - if (!epd->enabled) - return; - - DRM_DEBUG_DRIVER("\n"); - - epd->enabled = false; - - /* Nothing frame */ - for (line = 0; line < epd->height; line++) - repaper_one_line(epd, 0x7fffu, NULL, 0x00, NULL, - REPAPER_COMPENSATE); - - /* 2.7" */ - if (epd->border) { - /* Dummy line */ - repaper_one_line(epd, 0x7fffu, NULL, 0x00, NULL, - REPAPER_COMPENSATE); - msleep(25); - gpiod_set_value_cansleep(epd->border, 0); - msleep(200); - gpiod_set_value_cansleep(epd->border, 1); - } else { - /* Border dummy line */ - repaper_one_line(epd, 0x7fffu, NULL, 0x00, NULL, - REPAPER_NORMAL); - msleep(200); - } - - /* not described in datasheet */ - repaper_write_val(spi, 0x0b, 0x00); - /* Latch reset turn on */ - repaper_write_val(spi, 0x03, 0x01); - /* Power off charge pump Vcom */ - repaper_write_val(spi, 0x05, 0x03); - /* Power off charge pump neg voltage */ - repaper_write_val(spi, 0x05, 0x01); - msleep(120); - /* Discharge internal */ - repaper_write_val(spi, 0x04, 0x80); - /* turn off all charge pumps */ - repaper_write_val(spi, 0x05, 0x00); - /* Turn off osc */ - repaper_write_val(spi, 0x07, 0x01); - msleep(50); - - power_off(epd); -} - -static void repaper_pipe_update(struct drm_simple_display_pipe *pipe, - struct drm_plane_state *old_state) -{ - struct drm_plane_state *state = pipe->plane.state; - struct drm_crtc *crtc = &pipe->crtc; - struct drm_rect rect; - - if (drm_atomic_helper_damage_merged(old_state, state, &rect)) - repaper_fb_dirty(state->fb); - - if (crtc->state->event) { - spin_lock_irq(&crtc->dev->event_lock); - drm_crtc_send_vblank_event(crtc, crtc->state->event); - spin_unlock_irq(&crtc->dev->event_lock); - crtc->state->event = NULL; - } -} - -static const struct drm_simple_display_pipe_funcs repaper_pipe_funcs = { - .enable = repaper_pipe_enable, - .disable = repaper_pipe_disable, - .update = repaper_pipe_update, - .prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb, -}; - -static int repaper_connector_get_modes(struct drm_connector *connector) -{ - struct repaper_epd *epd = drm_to_epd(connector->dev); - struct drm_display_mode *mode; - - mode = drm_mode_duplicate(connector->dev, epd->mode); - if (!mode) { - DRM_ERROR("Failed to duplicate mode\n"); - return 0; - } - - drm_mode_set_name(mode); - mode->type |= DRM_MODE_TYPE_PREFERRED; - drm_mode_probed_add(connector, mode); - - connector->display_info.width_mm = mode->width_mm; - connector->display_info.height_mm = mode->height_mm; - - return 1; -} - -static const struct drm_connector_helper_funcs repaper_connector_hfuncs = { - .get_modes = repaper_connector_get_modes, -}; - -static const struct drm_connector_funcs repaper_connector_funcs = { - .reset = drm_atomic_helper_connector_reset, - .fill_modes = drm_helper_probe_single_connector_modes, - .destroy = drm_connector_cleanup, - .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, - .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, -}; - -static const struct drm_mode_config_funcs repaper_mode_config_funcs = { - .fb_create = drm_gem_fb_create_with_dirty, - .atomic_check = drm_atomic_helper_check, - .atomic_commit = drm_atomic_helper_commit, -}; - -static void repaper_release(struct drm_device *drm) -{ - struct repaper_epd *epd = drm_to_epd(drm); - - DRM_DEBUG_DRIVER("\n"); - - drm_mode_config_cleanup(drm); - drm_dev_fini(drm); - kfree(epd); -} - -static const uint32_t repaper_formats[] = { - DRM_FORMAT_XRGB8888, -}; - -static const struct drm_display_mode repaper_e1144cs021_mode = { - DRM_SIMPLE_MODE(128, 96, 29, 22), -}; - -static const u8 repaper_e1144cs021_cs[] = { 0x00, 0x00, 0x00, 0x00, - 0x00, 0x0f, 0xff, 0x00 }; - -static const struct drm_display_mode repaper_e1190cs021_mode = { - DRM_SIMPLE_MODE(144, 128, 36, 32), -}; - -static const u8 repaper_e1190cs021_cs[] = { 0x00, 0x00, 0x00, 0x03, - 0xfc, 0x00, 0x00, 0xff }; - -static const struct drm_display_mode repaper_e2200cs021_mode = { - DRM_SIMPLE_MODE(200, 96, 46, 22), -}; - -static const u8 repaper_e2200cs021_cs[] = { 0x00, 0x00, 0x00, 0x00, - 0x01, 0xff, 0xe0, 0x00 }; - -static const struct drm_display_mode repaper_e2271cs021_mode = { - DRM_SIMPLE_MODE(264, 176, 57, 38), -}; - -static const u8 repaper_e2271cs021_cs[] = { 0x00, 0x00, 0x00, 0x7f, - 0xff, 0xfe, 0x00, 0x00 }; - -DEFINE_DRM_GEM_CMA_FOPS(repaper_fops); - -static struct drm_driver repaper_driver = { - .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC, - .fops = &repaper_fops, - .release = repaper_release, - DRM_GEM_CMA_VMAP_DRIVER_OPS, - .name = "repaper", - .desc = "Pervasive Displays RePaper e-ink panels", - .date = "20170405", - .major = 1, - .minor = 0, -}; - -static const struct of_device_id repaper_of_match[] = { - { .compatible = "pervasive,e1144cs021", .data = (void *)E1144CS021 }, - { .compatible = "pervasive,e1190cs021", .data = (void *)E1190CS021 }, - { .compatible = "pervasive,e2200cs021", .data = (void *)E2200CS021 }, - { .compatible = "pervasive,e2271cs021", .data = (void *)E2271CS021 }, - {}, -}; -MODULE_DEVICE_TABLE(of, repaper_of_match); - -static const struct spi_device_id repaper_id[] = { - { "e1144cs021", E1144CS021 }, - { "e1190cs021", E1190CS021 }, - { "e2200cs021", E2200CS021 }, - { "e2271cs021", E2271CS021 }, - { }, -}; -MODULE_DEVICE_TABLE(spi, repaper_id); - -static int repaper_probe(struct spi_device *spi) -{ - const struct drm_display_mode *mode; - const struct spi_device_id *spi_id; - const struct of_device_id *match; - struct device *dev = &spi->dev; - enum repaper_model model; - const char *thermal_zone; - struct repaper_epd *epd; - size_t line_buffer_size; - struct drm_device *drm; - int ret; - - match = of_match_device(repaper_of_match, dev); - if (match) { - model = (enum repaper_model)match->data; - } else { - spi_id = spi_get_device_id(spi); - model = spi_id->driver_data; - } - - /* The SPI device is used to allocate dma memory */ - if (!dev->coherent_dma_mask) { - ret = dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(32)); - if (ret) { - dev_warn(dev, "Failed to set dma mask %d\n", ret); - return ret; - } - } - - epd = kzalloc(sizeof(*epd), GFP_KERNEL); - if (!epd) - return -ENOMEM; - - drm = &epd->drm; - - ret = devm_drm_dev_init(dev, drm, &repaper_driver); - if (ret) { - kfree(epd); - return ret; - } - - drm_mode_config_init(drm); - drm->mode_config.funcs = &repaper_mode_config_funcs; - - epd->spi = spi; - - epd->panel_on = devm_gpiod_get(dev, "panel-on", GPIOD_OUT_LOW); - if (IS_ERR(epd->panel_on)) { - ret = PTR_ERR(epd->panel_on); - if (ret != -EPROBE_DEFER) - DRM_DEV_ERROR(dev, "Failed to get gpio 'panel-on'\n"); - return ret; - } - - epd->discharge = devm_gpiod_get(dev, "discharge", GPIOD_OUT_LOW); - if (IS_ERR(epd->discharge)) { - ret = PTR_ERR(epd->discharge); - if (ret != -EPROBE_DEFER) - DRM_DEV_ERROR(dev, "Failed to get gpio 'discharge'\n"); - return ret; - } - - epd->reset = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW); - if (IS_ERR(epd->reset)) { - ret = PTR_ERR(epd->reset); - if (ret != -EPROBE_DEFER) - DRM_DEV_ERROR(dev, "Failed to get gpio 'reset'\n"); - return ret; - } - - epd->busy = devm_gpiod_get(dev, "busy", GPIOD_IN); - if (IS_ERR(epd->busy)) { - ret = PTR_ERR(epd->busy); - if (ret != -EPROBE_DEFER) - DRM_DEV_ERROR(dev, "Failed to get gpio 'busy'\n"); - return ret; - } - - if (!device_property_read_string(dev, "pervasive,thermal-zone", - &thermal_zone)) { - epd->thermal = thermal_zone_get_zone_by_name(thermal_zone); - if (IS_ERR(epd->thermal)) { - DRM_DEV_ERROR(dev, "Failed to get thermal zone: %s\n", thermal_zone); - return PTR_ERR(epd->thermal); - } - } - - switch (model) { - case E1144CS021: - mode = &repaper_e1144cs021_mode; - epd->channel_select = repaper_e1144cs021_cs; - epd->stage_time = 480; - epd->bytes_per_scan = 96 / 4; - epd->middle_scan = true; /* data-scan-data */ - epd->pre_border_byte = false; - epd->border_byte = REPAPER_BORDER_BYTE_ZERO; - break; - - case E1190CS021: - mode = &repaper_e1190cs021_mode; - epd->channel_select = repaper_e1190cs021_cs; - epd->stage_time = 480; - epd->bytes_per_scan = 128 / 4 / 2; - epd->middle_scan = false; /* scan-data-scan */ - epd->pre_border_byte = false; - epd->border_byte = REPAPER_BORDER_BYTE_SET; - break; - - case E2200CS021: - mode = &repaper_e2200cs021_mode; - epd->channel_select = repaper_e2200cs021_cs; - epd->stage_time = 480; - epd->bytes_per_scan = 96 / 4; - epd->middle_scan = true; /* data-scan-data */ - epd->pre_border_byte = true; - epd->border_byte = REPAPER_BORDER_BYTE_NONE; - break; - - case E2271CS021: - epd->border = devm_gpiod_get(dev, "border", GPIOD_OUT_LOW); - if (IS_ERR(epd->border)) { - ret = PTR_ERR(epd->border); - if (ret != -EPROBE_DEFER) - DRM_DEV_ERROR(dev, "Failed to get gpio 'border'\n"); - return ret; - } - - mode = &repaper_e2271cs021_mode; - epd->channel_select = repaper_e2271cs021_cs; - epd->stage_time = 630; - epd->bytes_per_scan = 176 / 4; - epd->middle_scan = true; /* data-scan-data */ - epd->pre_border_byte = true; - epd->border_byte = REPAPER_BORDER_BYTE_NONE; - break; - - default: - return -ENODEV; - } - - epd->mode = mode; - epd->width = mode->hdisplay; - epd->height = mode->vdisplay; - epd->factored_stage_time = epd->stage_time; - - line_buffer_size = 2 * epd->width / 8 + epd->bytes_per_scan + 2; - epd->line_buffer = devm_kzalloc(dev, line_buffer_size, GFP_KERNEL); - if (!epd->line_buffer) - return -ENOMEM; - - epd->current_frame = devm_kzalloc(dev, epd->width * epd->height / 8, - GFP_KERNEL); - if (!epd->current_frame) - return -ENOMEM; - - drm->mode_config.min_width = mode->hdisplay; - drm->mode_config.max_width = mode->hdisplay; - drm->mode_config.min_height = mode->vdisplay; - drm->mode_config.max_height = mode->vdisplay; - - drm_connector_helper_add(&epd->connector, &repaper_connector_hfuncs); - ret = drm_connector_init(drm, &epd->connector, &repaper_connector_funcs, - DRM_MODE_CONNECTOR_SPI); - if (ret) - return ret; - - ret = drm_simple_display_pipe_init(drm, &epd->pipe, &repaper_pipe_funcs, - repaper_formats, ARRAY_SIZE(repaper_formats), - NULL, &epd->connector); - if (ret) - return ret; - - drm_mode_config_reset(drm); - - ret = drm_dev_register(drm, 0); - if (ret) - return ret; - - spi_set_drvdata(spi, drm); - - DRM_DEBUG_DRIVER("SPI speed: %uMHz\n", spi->max_speed_hz / 1000000); - - drm_fbdev_generic_setup(drm, 0); - - return 0; -} - -static int repaper_remove(struct spi_device *spi) -{ - struct drm_device *drm = spi_get_drvdata(spi); - - drm_dev_unplug(drm); - drm_atomic_helper_shutdown(drm); - - return 0; -} - -static void repaper_shutdown(struct spi_device *spi) -{ - drm_atomic_helper_shutdown(spi_get_drvdata(spi)); -} - -static struct spi_driver repaper_spi_driver = { - .driver = { - .name = "repaper", - .owner = THIS_MODULE, - .of_match_table = repaper_of_match, - }, - .id_table = repaper_id, - .probe = repaper_probe, - .remove = repaper_remove, - .shutdown = repaper_shutdown, -}; -module_spi_driver(repaper_spi_driver); - -MODULE_DESCRIPTION("Pervasive Displays RePaper DRM driver"); -MODULE_AUTHOR("Noralf Trønnes"); -MODULE_LICENSE("GPL"); diff --git a/drivers/gpu/drm/tinydrm/st7586.c b/drivers/gpu/drm/tinydrm/st7586.c deleted file mode 100644 index 3cc21a1b30c8..000000000000 --- a/drivers/gpu/drm/tinydrm/st7586.c +++ /dev/null @@ -1,424 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * DRM driver for Sitronix ST7586 panels - * - * Copyright 2017 David Lechner <david@lechnology.com> - */ - -#include <linux/delay.h> -#include <linux/dma-buf.h> -#include <linux/gpio/consumer.h> -#include <linux/module.h> -#include <linux/property.h> -#include <linux/spi/spi.h> -#include <video/mipi_display.h> - -#include <drm/drm_atomic_helper.h> -#include <drm/drm_damage_helper.h> -#include <drm/drm_drv.h> -#include <drm/drm_fb_cma_helper.h> -#include <drm/drm_fb_helper.h> -#include <drm/drm_format_helper.h> -#include <drm/drm_gem_cma_helper.h> -#include <drm/drm_gem_framebuffer_helper.h> -#include <drm/drm_mipi_dbi.h> -#include <drm/drm_rect.h> -#include <drm/drm_vblank.h> - -/* controller-specific commands */ -#define ST7586_DISP_MODE_GRAY 0x38 -#define ST7586_DISP_MODE_MONO 0x39 -#define ST7586_ENABLE_DDRAM 0x3a -#define ST7586_SET_DISP_DUTY 0xb0 -#define ST7586_SET_PART_DISP 0xb4 -#define ST7586_SET_NLINE_INV 0xb5 -#define ST7586_SET_VOP 0xc0 -#define ST7586_SET_BIAS_SYSTEM 0xc3 -#define ST7586_SET_BOOST_LEVEL 0xc4 -#define ST7586_SET_VOP_OFFSET 0xc7 -#define ST7586_ENABLE_ANALOG 0xd0 -#define ST7586_AUTO_READ_CTRL 0xd7 -#define ST7586_OTP_RW_CTRL 0xe0 -#define ST7586_OTP_CTRL_OUT 0xe1 -#define ST7586_OTP_READ 0xe3 - -#define ST7586_DISP_CTRL_MX BIT(6) -#define ST7586_DISP_CTRL_MY BIT(7) - -/* - * The ST7586 controller has an unusual pixel format where 2bpp grayscale is - * packed 3 pixels per byte with the first two pixels using 3 bits and the 3rd - * pixel using only 2 bits. - * - * | D7 | D6 | D5 || | || 2bpp | - * | (D4) | (D3) | (D2) || D1 | D0 || GRAY | - * +------+------+------++------+------++------+ - * | 1 | 1 | 1 || 1 | 1 || 0 0 | black - * | 1 | 0 | 0 || 1 | 0 || 0 1 | dark gray - * | 0 | 1 | 0 || 0 | 1 || 1 0 | light gray - * | 0 | 0 | 0 || 0 | 0 || 1 1 | white - */ - -static const u8 st7586_lookup[] = { 0x7, 0x4, 0x2, 0x0 }; - -static void st7586_xrgb8888_to_gray332(u8 *dst, void *vaddr, - struct drm_framebuffer *fb, - struct drm_rect *clip) -{ - size_t len = (clip->x2 - clip->x1) * (clip->y2 - clip->y1); - unsigned int x, y; - u8 *src, *buf, val; - - buf = kmalloc(len, GFP_KERNEL); - if (!buf) - return; - - drm_fb_xrgb8888_to_gray8(buf, vaddr, fb, clip); - src = buf; - - for (y = clip->y1; y < clip->y2; y++) { - for (x = clip->x1; x < clip->x2; x += 3) { - val = st7586_lookup[*src++ >> 6] << 5; - val |= st7586_lookup[*src++ >> 6] << 2; - val |= st7586_lookup[*src++ >> 6] >> 1; - *dst++ = val; - } - } - - kfree(buf); -} - -static int st7586_buf_copy(void *dst, struct drm_framebuffer *fb, - struct drm_rect *clip) -{ - struct drm_gem_cma_object *cma_obj = drm_fb_cma_get_gem_obj(fb, 0); - struct dma_buf_attachment *import_attach = cma_obj->base.import_attach; - void *src = cma_obj->vaddr; - int ret = 0; - - if (import_attach) { - ret = dma_buf_begin_cpu_access(import_attach->dmabuf, - DMA_FROM_DEVICE); - if (ret) - return ret; - } - - st7586_xrgb8888_to_gray332(dst, src, fb, clip); - - if (import_attach) - ret = dma_buf_end_cpu_access(import_attach->dmabuf, - DMA_FROM_DEVICE); - - return ret; -} - -static void st7586_fb_dirty(struct drm_framebuffer *fb, struct drm_rect *rect) -{ - struct mipi_dbi_dev *dbidev = drm_to_mipi_dbi_dev(fb->dev); - struct mipi_dbi *dbi = &dbidev->dbi; - int start, end, idx, ret = 0; - - if (!dbidev->enabled) - return; - - if (!drm_dev_enter(fb->dev, &idx)) - return; - - /* 3 pixels per byte, so grow clip to nearest multiple of 3 */ - rect->x1 = rounddown(rect->x1, 3); - rect->x2 = roundup(rect->x2, 3); - - DRM_DEBUG_KMS("Flushing [FB:%d] " DRM_RECT_FMT "\n", fb->base.id, DRM_RECT_ARG(rect)); - - ret = st7586_buf_copy(dbidev->tx_buf, fb, rect); - if (ret) - goto err_msg; - - /* Pixels are packed 3 per byte */ - start = rect->x1 / 3; - end = rect->x2 / 3; - - mipi_dbi_command(dbi, MIPI_DCS_SET_COLUMN_ADDRESS, - (start >> 8) & 0xFF, start & 0xFF, - (end >> 8) & 0xFF, (end - 1) & 0xFF); - mipi_dbi_command(dbi, MIPI_DCS_SET_PAGE_ADDRESS, - (rect->y1 >> 8) & 0xFF, rect->y1 & 0xFF, - (rect->y2 >> 8) & 0xFF, (rect->y2 - 1) & 0xFF); - - ret = mipi_dbi_command_buf(dbi, MIPI_DCS_WRITE_MEMORY_START, - (u8 *)dbidev->tx_buf, - (end - start) * (rect->y2 - rect->y1)); -err_msg: - if (ret) - dev_err_once(fb->dev->dev, "Failed to update display %d\n", ret); - - drm_dev_exit(idx); -} - -static void st7586_pipe_update(struct drm_simple_display_pipe *pipe, - struct drm_plane_state *old_state) -{ - struct drm_plane_state *state = pipe->plane.state; - struct drm_crtc *crtc = &pipe->crtc; - struct drm_rect rect; - - if (drm_atomic_helper_damage_merged(old_state, state, &rect)) - st7586_fb_dirty(state->fb, &rect); - - if (crtc->state->event) { - spin_lock_irq(&crtc->dev->event_lock); - drm_crtc_send_vblank_event(crtc, crtc->state->event); - spin_unlock_irq(&crtc->dev->event_lock); - crtc->state->event = NULL; - } -} - -static void st7586_pipe_enable(struct drm_simple_display_pipe *pipe, - struct drm_crtc_state *crtc_state, - struct drm_plane_state *plane_state) -{ - struct mipi_dbi_dev *dbidev = drm_to_mipi_dbi_dev(pipe->crtc.dev); - struct drm_framebuffer *fb = plane_state->fb; - struct mipi_dbi *dbi = &dbidev->dbi; - struct drm_rect rect = { - .x1 = 0, - .x2 = fb->width, - .y1 = 0, - .y2 = fb->height, - }; - int idx, ret; - u8 addr_mode; - - if (!drm_dev_enter(pipe->crtc.dev, &idx)) - return; - - DRM_DEBUG_KMS("\n"); - - ret = mipi_dbi_poweron_reset(dbidev); - if (ret) - goto out_exit; - - mipi_dbi_command(dbi, ST7586_AUTO_READ_CTRL, 0x9f); - mipi_dbi_command(dbi, ST7586_OTP_RW_CTRL, 0x00); - - msleep(10); - - mipi_dbi_command(dbi, ST7586_OTP_READ); - - msleep(20); - - mipi_dbi_command(dbi, ST7586_OTP_CTRL_OUT); - mipi_dbi_command(dbi, MIPI_DCS_EXIT_SLEEP_MODE); - mipi_dbi_command(dbi, MIPI_DCS_SET_DISPLAY_OFF); - - msleep(50); - - mipi_dbi_command(dbi, ST7586_SET_VOP_OFFSET, 0x00); - mipi_dbi_command(dbi, ST7586_SET_VOP, 0xe3, 0x00); - mipi_dbi_command(dbi, ST7586_SET_BIAS_SYSTEM, 0x02); - mipi_dbi_command(dbi, ST7586_SET_BOOST_LEVEL, 0x04); - mipi_dbi_command(dbi, ST7586_ENABLE_ANALOG, 0x1d); - mipi_dbi_command(dbi, ST7586_SET_NLINE_INV, 0x00); - mipi_dbi_command(dbi, ST7586_DISP_MODE_GRAY); - mipi_dbi_command(dbi, ST7586_ENABLE_DDRAM, 0x02); - - switch (dbidev->rotation) { - default: - addr_mode = 0x00; - break; - case 90: - addr_mode = ST7586_DISP_CTRL_MY; - break; - case 180: - addr_mode = ST7586_DISP_CTRL_MX | ST7586_DISP_CTRL_MY; - break; - case 270: - addr_mode = ST7586_DISP_CTRL_MX; - break; - } - mipi_dbi_command(dbi, MIPI_DCS_SET_ADDRESS_MODE, addr_mode); - - mipi_dbi_command(dbi, ST7586_SET_DISP_DUTY, 0x7f); - mipi_dbi_command(dbi, ST7586_SET_PART_DISP, 0xa0); - mipi_dbi_command(dbi, MIPI_DCS_SET_PARTIAL_AREA, 0x00, 0x00, 0x00, 0x77); - mipi_dbi_command(dbi, MIPI_DCS_EXIT_INVERT_MODE); - - msleep(100); - - dbidev->enabled = true; - st7586_fb_dirty(fb, &rect); - - mipi_dbi_command(dbi, MIPI_DCS_SET_DISPLAY_ON); -out_exit: - drm_dev_exit(idx); -} - -static void st7586_pipe_disable(struct drm_simple_display_pipe *pipe) -{ - struct mipi_dbi_dev *dbidev = drm_to_mipi_dbi_dev(pipe->crtc.dev); - - /* - * This callback is not protected by drm_dev_enter/exit since we want to - * turn off the display on regular driver unload. It's highly unlikely - * that the underlying SPI controller is gone should this be called after - * unplug. - */ - - DRM_DEBUG_KMS("\n"); - - if (!dbidev->enabled) - return; - - mipi_dbi_command(&dbidev->dbi, MIPI_DCS_SET_DISPLAY_OFF); - dbidev->enabled = false; -} - -static const u32 st7586_formats[] = { - DRM_FORMAT_XRGB8888, -}; - -static const struct drm_simple_display_pipe_funcs st7586_pipe_funcs = { - .enable = st7586_pipe_enable, - .disable = st7586_pipe_disable, - .update = st7586_pipe_update, - .prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb, -}; - -static const struct drm_display_mode st7586_mode = { - DRM_SIMPLE_MODE(178, 128, 37, 27), -}; - -DEFINE_DRM_GEM_CMA_FOPS(st7586_fops); - -static struct drm_driver st7586_driver = { - .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC, - .fops = &st7586_fops, - .release = mipi_dbi_release, - DRM_GEM_CMA_VMAP_DRIVER_OPS, - .debugfs_init = mipi_dbi_debugfs_init, - .name = "st7586", - .desc = "Sitronix ST7586", - .date = "20170801", - .major = 1, - .minor = 0, -}; - -static const struct of_device_id st7586_of_match[] = { - { .compatible = "lego,ev3-lcd" }, - {}, -}; -MODULE_DEVICE_TABLE(of, st7586_of_match); - -static const struct spi_device_id st7586_id[] = { - { "ev3-lcd", 0 }, - { }, -}; -MODULE_DEVICE_TABLE(spi, st7586_id); - -static int st7586_probe(struct spi_device *spi) -{ - struct device *dev = &spi->dev; - struct mipi_dbi_dev *dbidev; - struct drm_device *drm; - struct mipi_dbi *dbi; - struct gpio_desc *a0; - u32 rotation = 0; - size_t bufsize; - int ret; - - dbidev = kzalloc(sizeof(*dbidev), GFP_KERNEL); - if (!dbidev) - return -ENOMEM; - - dbi = &dbidev->dbi; - drm = &dbidev->drm; - ret = devm_drm_dev_init(dev, drm, &st7586_driver); - if (ret) { - kfree(dbidev); - return ret; - } - - drm_mode_config_init(drm); - - bufsize = (st7586_mode.vdisplay + 2) / 3 * st7586_mode.hdisplay; - - dbi->reset = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH); - if (IS_ERR(dbi->reset)) { - DRM_DEV_ERROR(dev, "Failed to get gpio 'reset'\n"); - return PTR_ERR(dbi->reset); - } - - a0 = devm_gpiod_get(dev, "a0", GPIOD_OUT_LOW); - if (IS_ERR(a0)) { - DRM_DEV_ERROR(dev, "Failed to get gpio 'a0'\n"); - return PTR_ERR(a0); - } - - device_property_read_u32(dev, "rotation", &rotation); - - ret = mipi_dbi_spi_init(spi, dbi, a0); - if (ret) - return ret; - - /* Cannot read from this controller via SPI */ - dbi->read_commands = NULL; - - ret = mipi_dbi_dev_init_with_formats(dbidev, &st7586_pipe_funcs, - st7586_formats, ARRAY_SIZE(st7586_formats), - &st7586_mode, rotation, bufsize); - if (ret) - return ret; - - /* - * we are using 8-bit data, so we are not actually swapping anything, - * but setting mipi->swap_bytes makes mipi_dbi_typec3_command() do the - * right thing and not use 16-bit transfers (which results in swapped - * bytes on little-endian systems and causes out of order data to be - * sent to the display). - */ - dbi->swap_bytes = true; - - drm_mode_config_reset(drm); - - ret = drm_dev_register(drm, 0); - if (ret) - return ret; - - spi_set_drvdata(spi, drm); - - drm_fbdev_generic_setup(drm, 0); - - return 0; -} - -static int st7586_remove(struct spi_device *spi) -{ - struct drm_device *drm = spi_get_drvdata(spi); - - drm_dev_unplug(drm); - drm_atomic_helper_shutdown(drm); - - return 0; -} - -static void st7586_shutdown(struct spi_device *spi) -{ - drm_atomic_helper_shutdown(spi_get_drvdata(spi)); -} - -static struct spi_driver st7586_spi_driver = { - .driver = { - .name = "st7586", - .owner = THIS_MODULE, - .of_match_table = st7586_of_match, - }, - .id_table = st7586_id, - .probe = st7586_probe, - .remove = st7586_remove, - .shutdown = st7586_shutdown, -}; -module_spi_driver(st7586_spi_driver); - -MODULE_DESCRIPTION("Sitronix ST7586 DRM driver"); -MODULE_AUTHOR("David Lechner <david@lechnology.com>"); -MODULE_LICENSE("GPL"); diff --git a/drivers/gpu/drm/tinydrm/st7735r.c b/drivers/gpu/drm/tinydrm/st7735r.c deleted file mode 100644 index 3f4487c71684..000000000000 --- a/drivers/gpu/drm/tinydrm/st7735r.c +++ /dev/null @@ -1,246 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * DRM driver for Sitronix ST7735R panels - * - * Copyright 2017 David Lechner <david@lechnology.com> - */ - -#include <linux/backlight.h> -#include <linux/delay.h> -#include <linux/dma-buf.h> -#include <linux/gpio/consumer.h> -#include <linux/module.h> -#include <linux/property.h> -#include <linux/spi/spi.h> -#include <video/mipi_display.h> - -#include <drm/drm_atomic_helper.h> -#include <drm/drm_drv.h> -#include <drm/drm_fb_helper.h> -#include <drm/drm_gem_cma_helper.h> -#include <drm/drm_gem_framebuffer_helper.h> -#include <drm/drm_mipi_dbi.h> - -#define ST7735R_FRMCTR1 0xb1 -#define ST7735R_FRMCTR2 0xb2 -#define ST7735R_FRMCTR3 0xb3 -#define ST7735R_INVCTR 0xb4 -#define ST7735R_PWCTR1 0xc0 -#define ST7735R_PWCTR2 0xc1 -#define ST7735R_PWCTR3 0xc2 -#define ST7735R_PWCTR4 0xc3 -#define ST7735R_PWCTR5 0xc4 -#define ST7735R_VMCTR1 0xc5 -#define ST7735R_GAMCTRP1 0xe0 -#define ST7735R_GAMCTRN1 0xe1 - -#define ST7735R_MY BIT(7) -#define ST7735R_MX BIT(6) -#define ST7735R_MV BIT(5) - -static void jd_t18003_t01_pipe_enable(struct drm_simple_display_pipe *pipe, - struct drm_crtc_state *crtc_state, - struct drm_plane_state *plane_state) -{ - struct mipi_dbi_dev *dbidev = drm_to_mipi_dbi_dev(pipe->crtc.dev); - struct mipi_dbi *dbi = &dbidev->dbi; - int ret, idx; - u8 addr_mode; - - if (!drm_dev_enter(pipe->crtc.dev, &idx)) - return; - - DRM_DEBUG_KMS("\n"); - - ret = mipi_dbi_poweron_reset(dbidev); - if (ret) - goto out_exit; - - msleep(150); - - mipi_dbi_command(dbi, MIPI_DCS_EXIT_SLEEP_MODE); - msleep(500); - - mipi_dbi_command(dbi, ST7735R_FRMCTR1, 0x01, 0x2c, 0x2d); - mipi_dbi_command(dbi, ST7735R_FRMCTR2, 0x01, 0x2c, 0x2d); - mipi_dbi_command(dbi, ST7735R_FRMCTR3, 0x01, 0x2c, 0x2d, 0x01, 0x2c, - 0x2d); - mipi_dbi_command(dbi, ST7735R_INVCTR, 0x07); - mipi_dbi_command(dbi, ST7735R_PWCTR1, 0xa2, 0x02, 0x84); - mipi_dbi_command(dbi, ST7735R_PWCTR2, 0xc5); - mipi_dbi_command(dbi, ST7735R_PWCTR3, 0x0a, 0x00); - mipi_dbi_command(dbi, ST7735R_PWCTR4, 0x8a, 0x2a); - mipi_dbi_command(dbi, ST7735R_PWCTR5, 0x8a, 0xee); - mipi_dbi_command(dbi, ST7735R_VMCTR1, 0x0e); - mipi_dbi_command(dbi, MIPI_DCS_EXIT_INVERT_MODE); - switch (dbidev->rotation) { - default: - addr_mode = ST7735R_MX | ST7735R_MY; - break; - case 90: - addr_mode = ST7735R_MX | ST7735R_MV; - break; - case 180: - addr_mode = 0; - break; - case 270: - addr_mode = ST7735R_MY | ST7735R_MV; - break; - } - mipi_dbi_command(dbi, MIPI_DCS_SET_ADDRESS_MODE, addr_mode); - mipi_dbi_command(dbi, MIPI_DCS_SET_PIXEL_FORMAT, - MIPI_DCS_PIXEL_FMT_16BIT); - mipi_dbi_command(dbi, ST7735R_GAMCTRP1, 0x02, 0x1c, 0x07, 0x12, 0x37, - 0x32, 0x29, 0x2d, 0x29, 0x25, 0x2b, 0x39, 0x00, 0x01, - 0x03, 0x10); - mipi_dbi_command(dbi, ST7735R_GAMCTRN1, 0x03, 0x1d, 0x07, 0x06, 0x2e, - 0x2c, 0x29, 0x2d, 0x2e, 0x2e, 0x37, 0x3f, 0x00, 0x00, - 0x02, 0x10); - mipi_dbi_command(dbi, MIPI_DCS_SET_DISPLAY_ON); - - msleep(100); - - mipi_dbi_command(dbi, MIPI_DCS_ENTER_NORMAL_MODE); - - msleep(20); - - mipi_dbi_enable_flush(dbidev, crtc_state, plane_state); -out_exit: - drm_dev_exit(idx); -} - -static const struct drm_simple_display_pipe_funcs jd_t18003_t01_pipe_funcs = { - .enable = jd_t18003_t01_pipe_enable, - .disable = mipi_dbi_pipe_disable, - .update = mipi_dbi_pipe_update, - .prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb, -}; - -static const struct drm_display_mode jd_t18003_t01_mode = { - DRM_SIMPLE_MODE(128, 160, 28, 35), -}; - -DEFINE_DRM_GEM_CMA_FOPS(st7735r_fops); - -static struct drm_driver st7735r_driver = { - .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC, - .fops = &st7735r_fops, - .release = mipi_dbi_release, - DRM_GEM_CMA_VMAP_DRIVER_OPS, - .debugfs_init = mipi_dbi_debugfs_init, - .name = "st7735r", - .desc = "Sitronix ST7735R", - .date = "20171128", - .major = 1, - .minor = 0, -}; - -static const struct of_device_id st7735r_of_match[] = { - { .compatible = "jianda,jd-t18003-t01" }, - { }, -}; -MODULE_DEVICE_TABLE(of, st7735r_of_match); - -static const struct spi_device_id st7735r_id[] = { - { "jd-t18003-t01", 0 }, - { }, -}; -MODULE_DEVICE_TABLE(spi, st7735r_id); - -static int st7735r_probe(struct spi_device *spi) -{ - struct device *dev = &spi->dev; - struct mipi_dbi_dev *dbidev; - struct drm_device *drm; - struct mipi_dbi *dbi; - struct gpio_desc *dc; - u32 rotation = 0; - int ret; - - dbidev = kzalloc(sizeof(*dbidev), GFP_KERNEL); - if (!dbidev) - return -ENOMEM; - - dbi = &dbidev->dbi; - drm = &dbidev->drm; - ret = devm_drm_dev_init(dev, drm, &st7735r_driver); - if (ret) { - kfree(dbidev); - return ret; - } - - drm_mode_config_init(drm); - - dbi->reset = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH); - if (IS_ERR(dbi->reset)) { - DRM_DEV_ERROR(dev, "Failed to get gpio 'reset'\n"); - return PTR_ERR(dbi->reset); - } - - dc = devm_gpiod_get(dev, "dc", GPIOD_OUT_LOW); - if (IS_ERR(dc)) { - DRM_DEV_ERROR(dev, "Failed to get gpio 'dc'\n"); - return PTR_ERR(dc); - } - - dbidev->backlight = devm_of_find_backlight(dev); - if (IS_ERR(dbidev->backlight)) - return PTR_ERR(dbidev->backlight); - - device_property_read_u32(dev, "rotation", &rotation); - - ret = mipi_dbi_spi_init(spi, dbi, dc); - if (ret) - return ret; - - /* Cannot read from Adafruit 1.8" display via SPI */ - dbi->read_commands = NULL; - - ret = mipi_dbi_dev_init(dbidev, &jd_t18003_t01_pipe_funcs, &jd_t18003_t01_mode, rotation); - if (ret) - return ret; - - drm_mode_config_reset(drm); - - ret = drm_dev_register(drm, 0); - if (ret) - return ret; - - spi_set_drvdata(spi, drm); - - drm_fbdev_generic_setup(drm, 0); - - return 0; -} - -static int st7735r_remove(struct spi_device *spi) -{ - struct drm_device *drm = spi_get_drvdata(spi); - - drm_dev_unplug(drm); - drm_atomic_helper_shutdown(drm); - - return 0; -} - -static void st7735r_shutdown(struct spi_device *spi) -{ - drm_atomic_helper_shutdown(spi_get_drvdata(spi)); -} - -static struct spi_driver st7735r_spi_driver = { - .driver = { - .name = "st7735r", - .owner = THIS_MODULE, - .of_match_table = st7735r_of_match, - }, - .id_table = st7735r_id, - .probe = st7735r_probe, - .remove = st7735r_remove, - .shutdown = st7735r_shutdown, -}; -module_spi_driver(st7735r_spi_driver); - -MODULE_DESCRIPTION("Sitronix ST7735R DRM driver"); -MODULE_AUTHOR("David Lechner <david@lechnology.com>"); -MODULE_LICENSE("GPL"); |