Merge tag 'drm-misc-next-2020-10-27' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for 5.11:

UAPI Changes:

  - doc: rules for EBUSY on non-blocking commits; requirements for fourcc
    modifiers; on parsing EDID
  - fbdev/sbuslib: Remove unused FBIOSCURSOR32
  - fourcc: deprecate DRM_FORMAT_MOD_NONE
  - virtio: Support blob resources for memory allocations; Expose host-visible
    and cross-device features

Cross-subsystem Changes:

  - devicetree: Add vendor Prefix for Yes Optoelectronics, Shanghai Top Display
    Optoelectronics
  - dma-buf: Add struct dma_buf_map that stores DMA pointer and I/O-memory flag;
    dma_buf_vmap()/vunmap() return address in dma_buf_map; Use struct_size() macro

Core Changes:

  - atomic: pass full state to CRTC atomic enable/disable; warn for EBUSY during
    non-blocking commits
  - dp: Prepare for DP 2.0 DPCD
  - dp_mst: Receive extended DPCD caps
  - dma-buf: Documentation
  - doc: Format modifiers; dma-buf-map; Cleanups
  - fbdev: Don't use compat_alloc_user_space(); mark as orphaned
  - fb-helper: Take lock in drm_fb_helper_restore_work_fb()
  - gem: Convert implementation and drivers to GEM object functions, remove
    GEM callbacks from struct drm_driver (expect gem_prime_mmap)
  - panel: Cleanups
  - pci: Add legacy infix to drm_irq_by_busid()
  - sched: Avoid infinite waits in drm_sched_entity_destroy()
  - switcheroo: Cleanups
  - ttm: Remove AGP support; Don't modify caching during swapout; Major
    refactoring of the implementation and API that affects all depending
    drivers; Add ttm_bo_wait_ctx(); Add ttm_bo_pin()/unpin() in favor of
    TTM_PL_FLAG_NO_EVICT; Remove ttm_bo_create(); Remove fault_reserve_notify()
    callback; Push move() implementation into drivers; Remove TTM_PAGE_FLAG_WRITE;
    Replace caching flags with init-time cache setting; Push ttm_tt_bind() into
    drivers; Replace move_notify() with delete_mem_notify(); No overlapping memcpy();
    no more ttm_set_populated()
  - vram-helper: Fix BO top-down placement; TTM-related changes; Init GEM
    object functions with defaults; Default placement in system memory; Cleanups

Driver Changes:

  - amdgpu: Use GEM object functions
  - armada: Use GEM object functions
  - aspeed: Configure output via sysfs; Init struct drm_driver with
  - ast: Reload LUT after FB format changes
  - bridge: Add driver and DT bindings for anx7625; Cleanups
  - bridge/dw-hdmi: Constify ops
  - bridge/ti-sn65dsi86: Add retries for link training
  - bridge/lvds-codec: Add support for regulator
  - bridge/tc358768: Restore connector support DRM_GEM_CMA_DRIVEROPS; Cleanups
  - display/ti,j721e-dss: Add DT properies assigned-clocks, assigned-clocks-parent and
    dma-coherent
  - display/ti,am65s-dss: Add DT properies assigned-clocks, assigned-clocks-parent and
    dma-coherent
  - etnaviv: Use GEM object functions
  - exynos: Use GEM object functions
  - fbdev: Cleanups and compiler fixes throughout framebuffer drivers
  - fbdev/cirrusfb: Avoid division by 0
  - gma500: Use GEM object functions; Fix double-free of connector; Cleanups
  - hisilicon/hibmc: I2C-based DDC support; Use to_hibmc_drm_device(); Cleanups
  - i915: Use GEM object functions
  - imx/dcss: Init driver with DRM_GEM_CMA_DRIVER_OPS; Cleanups
  - ingenic: Reset pixel clock when parent clock changes; support reserved
    memory; Alloc F0 and F1 DMA channels at once; Support different pixel formats;
    Revert support for cached mmap buffers
    on F0/F1; support 30-bit/24-bit/8-bit-palette modes
  - komeda: Use DEFINE_SHOW_ATTRIBUTE
  - mcde: Detect platform_get_irq() errors
  - mediatek: Use GEM object functions
  - msm: Use GEM object functions
  - nouveau: Cleanups; TTM-related changes; Use GEM object functions
  - omapdrm: Use GEM object functions
  - panel: Add driver and DT bindings for Novatak nt36672a; Add driver and DT
    bindings for YTC700TLAG-05-201C; Add driver and DT bindings for TDO TL070WSH30;
    Cleanups
  - panel/mantix: Fix reset; Fix deref of NULL pointer in mantix_get_modes()
  - panel/otm8009a: Allow non-continuous dsi clock; Cleanups
  - panel/rm68200: Allow non-continuous dsi clock; Fix mode to 50 FPS
  - panfrost: Fix job timeout handling; Cleanups
  - pl111: Use GEM object functions
  - qxl: Cleanups; TTM-related changes; Pin new BOs with ttm_bo_init_reserved()
  - radeon: Cleanups; TTM-related changes; Use GEM object functions
  - rockchip: Use GEM object functions
  - shmobile: Cleanups
  - tegra: Use GEM object functions
  - tidss: Set drm_plane_helper_funcs.prepare_fb
  - tilcdc: Don't keep vblank interrupt enabled all the time
  - tve200: Detect platform_get_irq() errors
  - vc4: Use GEM object functions; Only register components once DSI is attached;
    Add Maxime as maintainer
  - vgem: Use GEM object functions
  - via: Simplify critical section in via_mem_alloc()
  - virtgpu: Use GEM object functions
  - virtio: Implement blob resources, host-visible and cross-device features;
    Support mapping of host-allocated resources; Use UUID APi; Cleanups
  - vkms: Use GEM object functions; Switch to SHMEM
  - vmwgfx: TTM-related changes; Inline ttm_bo_swapout_all()
  - xen: Use GEM object functions
  - xlnx: Use GEM object functions

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20201027100936.GA4858@linux-uq9g

1 files changed, 250 insertions, 0 deletions

diff --git a/drivers/gpu/drm/panel/panel-tdo-tl070wsh30.c b/drivers/gpu/drm/panel/panel-tdo-tl070wsh30.c
new file mode 100644
index 000000000000..820731be7147
--- /dev/null
+++ b/drivers/gpu/drm/panel/panel-tdo-tl070wsh30.c
@@ -0,0 +1,250 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2020 BayLibre, SAS
+ * Author: Neil Armstrong <narmstrong@baylibre.com>
+ */
+
+#include <linux/delay.h>
+#include <linux/gpio/consumer.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/regulator/consumer.h>
+
+#include <video/mipi_display.h>
+
+#include <drm/drm_crtc.h>
+#include <drm/drm_device.h>
+#include <drm/drm_mipi_dsi.h>
+#include <drm/drm_modes.h>
+#include <drm/drm_panel.h>
+
+struct tdo_tl070wsh30_panel {
+	struct drm_panel base;
+	struct mipi_dsi_device *link;
+
+	struct regulator *supply;
+	struct gpio_desc *reset_gpio;
+
+	bool prepared;
+};
+
+static inline
+struct tdo_tl070wsh30_panel *to_tdo_tl070wsh30_panel(struct drm_panel *panel)
+{
+	return container_of(panel, struct tdo_tl070wsh30_panel, base);
+}
+
+static int tdo_tl070wsh30_panel_prepare(struct drm_panel *panel)
+{
+	struct tdo_tl070wsh30_panel *tdo_tl070wsh30 = to_tdo_tl070wsh30_panel(panel);
+	int err;
+
+	if (tdo_tl070wsh30->prepared)
+		return 0;
+
+	err = regulator_enable(tdo_tl070wsh30->supply);
+	if (err < 0)
+		return err;
+
+	usleep_range(10000, 11000);
+
+	gpiod_set_value_cansleep(tdo_tl070wsh30->reset_gpio, 1);
+
+	usleep_range(10000, 11000);
+
+	gpiod_set_value_cansleep(tdo_tl070wsh30->reset_gpio, 0);
+
+	msleep(200);
+
+	err = mipi_dsi_dcs_exit_sleep_mode(tdo_tl070wsh30->link);
+	if (err < 0) {
+		dev_err(panel->dev, "failed to exit sleep mode: %d\n", err);
+		regulator_disable(tdo_tl070wsh30->supply);
+		return err;
+	}
+
+	msleep(200);
+
+	err = mipi_dsi_dcs_set_display_on(tdo_tl070wsh30->link);
+	if (err < 0) {
+		dev_err(panel->dev, "failed to set display on: %d\n", err);
+		regulator_disable(tdo_tl070wsh30->supply);
+		return err;
+	}
+
+	msleep(20);
+
+	tdo_tl070wsh30->prepared = true;
+
+	return 0;
+}
+
+static int tdo_tl070wsh30_panel_unprepare(struct drm_panel *panel)
+{
+	struct tdo_tl070wsh30_panel *tdo_tl070wsh30 = to_tdo_tl070wsh30_panel(panel);
+	int err;
+
+	if (!tdo_tl070wsh30->prepared)
+		return 0;
+
+	err = mipi_dsi_dcs_set_display_off(tdo_tl070wsh30->link);
+	if (err < 0)
+		dev_err(panel->dev, "failed to set display off: %d\n", err);
+
+	usleep_range(10000, 11000);
+
+	err = mipi_dsi_dcs_enter_sleep_mode(tdo_tl070wsh30->link);
+	if (err < 0) {
+		dev_err(panel->dev, "failed to enter sleep mode: %d\n", err);
+		return err;
+	}
+
+	usleep_range(10000, 11000);
+
+	regulator_disable(tdo_tl070wsh30->supply);
+
+	tdo_tl070wsh30->prepared = false;
+
+	return 0;
+}
+
+static const struct drm_display_mode default_mode = {
+	.clock = 47250,
+	.hdisplay = 1024,
+	.hsync_start = 1024 + 46,
+	.hsync_end = 1024 + 46 + 80,
+	.htotal = 1024 + 46 + 80 + 100,
+	.vdisplay = 600,
+	.vsync_start = 600 + 5,
+	.vsync_end = 600 + 5 + 5,
+	.vtotal = 600 + 5 + 5 + 20,
+	.flags = DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC,
+};
+
+static int tdo_tl070wsh30_panel_get_modes(struct drm_panel *panel,
+				       struct drm_connector *connector)
+{
+	struct drm_display_mode *mode;
+
+	mode = drm_mode_duplicate(connector->dev, &default_mode);
+	if (!mode) {
+		dev_err(panel->dev, "failed to add mode %ux%u@%u\n",
+			default_mode.hdisplay, default_mode.vdisplay,
+			drm_mode_vrefresh(&default_mode));
+		return -ENOMEM;
+	}
+
+	drm_mode_set_name(mode);
+
+	drm_mode_probed_add(connector, mode);
+
+	connector->display_info.width_mm = 154;
+	connector->display_info.height_mm = 85;
+	connector->display_info.bpc = 8;
+
+	return 1;
+}
+
+static const struct drm_panel_funcs tdo_tl070wsh30_panel_funcs = {
+	.unprepare = tdo_tl070wsh30_panel_unprepare,
+	.prepare = tdo_tl070wsh30_panel_prepare,
+	.get_modes = tdo_tl070wsh30_panel_get_modes,
+};
+
+static const struct of_device_id tdo_tl070wsh30_of_match[] = {
+	{ .compatible = "tdo,tl070wsh30", },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, tdo_tl070wsh30_of_match);
+
+static int tdo_tl070wsh30_panel_add(struct tdo_tl070wsh30_panel *tdo_tl070wsh30)
+{
+	struct device *dev = &tdo_tl070wsh30->link->dev;
+	int err;
+
+	tdo_tl070wsh30->supply = devm_regulator_get(dev, "power");
+	if (IS_ERR(tdo_tl070wsh30->supply))
+		return PTR_ERR(tdo_tl070wsh30->supply);
+
+	tdo_tl070wsh30->reset_gpio = devm_gpiod_get(dev, "reset",
+						    GPIOD_OUT_LOW);
+	if (IS_ERR(tdo_tl070wsh30->reset_gpio)) {
+		err = PTR_ERR(tdo_tl070wsh30->reset_gpio);
+		dev_dbg(dev, "failed to get reset gpio: %d\n", err);
+		return err;
+	}
+
+	drm_panel_init(&tdo_tl070wsh30->base, &tdo_tl070wsh30->link->dev,
+		       &tdo_tl070wsh30_panel_funcs, DRM_MODE_CONNECTOR_DSI);
+
+	err = drm_panel_of_backlight(&tdo_tl070wsh30->base);
+	if (err)
+		return err;
+
+	drm_panel_add(&tdo_tl070wsh30->base);
+
+	return 0;
+}
+
+static int tdo_tl070wsh30_panel_probe(struct mipi_dsi_device *dsi)
+{
+	struct tdo_tl070wsh30_panel *tdo_tl070wsh30;
+	int err;
+
+	dsi->lanes = 4;
+	dsi->format = MIPI_DSI_FMT_RGB888;
+	dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST | MIPI_DSI_MODE_LPM;
+
+	tdo_tl070wsh30 = devm_kzalloc(&dsi->dev, sizeof(*tdo_tl070wsh30),
+				    GFP_KERNEL);
+	if (!tdo_tl070wsh30)
+		return -ENOMEM;
+
+	mipi_dsi_set_drvdata(dsi, tdo_tl070wsh30);
+	tdo_tl070wsh30->link = dsi;
+
+	err = tdo_tl070wsh30_panel_add(tdo_tl070wsh30);
+	if (err < 0)
+		return err;
+
+	return mipi_dsi_attach(dsi);
+}
+
+static int tdo_tl070wsh30_panel_remove(struct mipi_dsi_device *dsi)
+{
+	struct tdo_tl070wsh30_panel *tdo_tl070wsh30 = mipi_dsi_get_drvdata(dsi);
+	int err;
+
+	err = mipi_dsi_detach(dsi);
+	if (err < 0)
+		dev_err(&dsi->dev, "failed to detach from DSI host: %d\n", err);
+
+	drm_panel_remove(&tdo_tl070wsh30->base);
+	drm_panel_disable(&tdo_tl070wsh30->base);
+	drm_panel_unprepare(&tdo_tl070wsh30->base);
+
+	return 0;
+}
+
+static void tdo_tl070wsh30_panel_shutdown(struct mipi_dsi_device *dsi)
+{
+	struct tdo_tl070wsh30_panel *tdo_tl070wsh30 = mipi_dsi_get_drvdata(dsi);
+
+	drm_panel_disable(&tdo_tl070wsh30->base);
+	drm_panel_unprepare(&tdo_tl070wsh30->base);
+}
+
+static struct mipi_dsi_driver tdo_tl070wsh30_panel_driver = {
+	.driver = {
+		.name = "panel-tdo-tl070wsh30",
+		.of_match_table = tdo_tl070wsh30_of_match,
+	},
+	.probe = tdo_tl070wsh30_panel_probe,
+	.remove = tdo_tl070wsh30_panel_remove,
+	.shutdown = tdo_tl070wsh30_panel_shutdown,
+};
+module_mipi_dsi_driver(tdo_tl070wsh30_panel_driver);
+
+MODULE_AUTHOR("Neil Armstrong <narmstrong@baylibre.com>");
+MODULE_DESCRIPTION("TDO TL070WSH30 panel driver");
+MODULE_LICENSE("GPL v2");