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-rw-r--r--Documentation/devicetree/bindings/display/hisilicon/dw-dsi.txt72
-rw-r--r--Documentation/devicetree/bindings/display/hisilicon/hisi-ade.txt64
-rw-r--r--MAINTAINERS10
-rw-r--r--drivers/gpu/drm/Kconfig2
-rw-r--r--drivers/gpu/drm/Makefile1
-rw-r--r--drivers/gpu/drm/hisilicon/Kconfig5
-rw-r--r--drivers/gpu/drm/hisilicon/Makefile5
-rw-r--r--drivers/gpu/drm/hisilicon/kirin/Kconfig18
-rw-r--r--drivers/gpu/drm/hisilicon/kirin/Makefile6
-rw-r--r--drivers/gpu/drm/hisilicon/kirin/dw_drm_dsi.c857
-rw-r--r--drivers/gpu/drm/hisilicon/kirin/dw_dsi_reg.h103
-rw-r--r--drivers/gpu/drm/hisilicon/kirin/kirin_ade_reg.h230
-rw-r--r--drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c1057
-rw-r--r--drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c367
-rw-r--r--drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.h31
15 files changed, 2828 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/display/hisilicon/dw-dsi.txt b/Documentation/devicetree/bindings/display/hisilicon/dw-dsi.txt
new file mode 100644
index 000000000000..d270bfe4e4e0
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/hisilicon/dw-dsi.txt
@@ -0,0 +1,72 @@
+Device-Tree bindings for DesignWare DSI Host Controller v1.20a driver
+
+A DSI Host Controller resides in the middle of display controller and external
+HDMI converter or panel.
+
+Required properties:
+- compatible: value should be "hisilicon,hi6220-dsi".
+- reg: physical base address and length of dsi controller's registers.
+- clocks: contains APB clock phandle + clock-specifier pair.
+- clock-names: should be "pclk".
+- ports: contains DSI controller input and output sub port.
+ The input port connects to ADE output port with the reg value "0".
+ The output port with the reg value "1", it could connect to panel or
+ any other bridge endpoints.
+ See Documentation/devicetree/bindings/graph.txt for more device graph info.
+
+A example of HiKey board hi6220 SoC and board specific DT entry:
+Example:
+
+SoC specific:
+ dsi: dsi@f4107800 {
+ compatible = "hisilicon,hi6220-dsi";
+ reg = <0x0 0xf4107800 0x0 0x100>;
+ clocks = <&media_ctrl HI6220_DSI_PCLK>;
+ clock-names = "pclk";
+ status = "disabled";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ /* 0 for input port */
+ port@0 {
+ reg = <0>;
+ dsi_in: endpoint {
+ remote-endpoint = <&ade_out>;
+ };
+ };
+ };
+ };
+
+
+Board specific:
+ &dsi {
+ status = "ok";
+
+ ports {
+ /* 1 for output port */
+ port@1 {
+ reg = <1>;
+
+ dsi_out0: endpoint@0 {
+ remote-endpoint = <&adv7533_in>;
+ };
+ };
+ };
+ };
+
+ &i2c2 {
+ ...
+
+ adv7533: adv7533@39 {
+ ...
+
+ port {
+ adv7533_in: endpoint {
+ remote-endpoint = <&dsi_out0>;
+ };
+ };
+ };
+ };
+
diff --git a/Documentation/devicetree/bindings/display/hisilicon/hisi-ade.txt b/Documentation/devicetree/bindings/display/hisilicon/hisi-ade.txt
new file mode 100644
index 000000000000..38dc9d60eef8
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/hisilicon/hisi-ade.txt
@@ -0,0 +1,64 @@
+Device-Tree bindings for hisilicon ADE display controller driver
+
+ADE (Advanced Display Engine) is the display controller which grab image
+data from memory, do composition, do post image processing, generate RGB
+timing stream and transfer to DSI.
+
+Required properties:
+- compatible: value should be "hisilicon,hi6220-ade".
+- reg: physical base address and length of the ADE controller's registers.
+- hisilicon,noc-syscon: ADE NOC QoS syscon.
+- resets: The ADE reset controller node.
+- interrupt: the ldi vblank interrupt number used.
+- clocks: a list of phandle + clock-specifier pairs, one for each entry
+ in clock-names.
+- clock-names: should contain:
+ "clk_ade_core" for the ADE core clock.
+ "clk_codec_jpeg" for the media NOC QoS clock, which use the same clock with
+ jpeg codec.
+ "clk_ade_pix" for the ADE pixel clok.
+- assigned-clocks: Should contain "clk_ade_core" and "clk_codec_jpeg" clocks'
+ phandle + clock-specifier pairs.
+- assigned-clock-rates: clock rates, one for each entry in assigned-clocks.
+ The rate of "clk_ade_core" could be "360000000" or "180000000";
+ The rate of "clk_codec_jpeg" could be or less than "1440000000".
+ These rate values could be configured according to performance and power
+ consumption.
+- port: the output port. This contains one endpoint subnode, with its
+ remote-endpoint set to the phandle of the connected DSI input endpoint.
+ See Documentation/devicetree/bindings/graph.txt for more device graph info.
+
+Optional properties:
+- dma-coherent: Present if dma operations are coherent.
+
+
+A example of HiKey board hi6220 SoC specific DT entry:
+Example:
+
+ ade: ade@f4100000 {
+ compatible = "hisilicon,hi6220-ade";
+ reg = <0x0 0xf4100000 0x0 0x7800>;
+ reg-names = "ade_base";
+ hisilicon,noc-syscon = <&medianoc_ade>;
+ resets = <&media_ctrl MEDIA_ADE>;
+ interrupts = <0 115 4>; /* ldi interrupt */
+
+ clocks = <&media_ctrl HI6220_ADE_CORE>,
+ <&media_ctrl HI6220_CODEC_JPEG>,
+ <&media_ctrl HI6220_ADE_PIX_SRC>;
+ /*clock name*/
+ clock-names = "clk_ade_core",
+ "clk_codec_jpeg",
+ "clk_ade_pix";
+
+ assigned-clocks = <&media_ctrl HI6220_ADE_CORE>,
+ <&media_ctrl HI6220_CODEC_JPEG>;
+ assigned-clock-rates = <360000000>, <288000000>;
+ dma-coherent;
+
+ port {
+ ade_out: endpoint {
+ remote-endpoint = <&dsi_in>;
+ };
+ };
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index d1d6498af02f..f262128644e6 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3853,6 +3853,16 @@ T: git git://github.com/patjak/drm-gma500
S: Maintained
F: drivers/gpu/drm/gma500/
+DRM DRIVERS FOR HISILICON
+M: Xinliang Liu <z.liuxinliang@hisilicon.com>
+R: Xinwei Kong <kong.kongxinwei@hisilicon.com>
+R: Chen Feng <puck.chen@hisilicon.com>
+L: dri-devel@lists.freedesktop.org
+T: git git://github.com/xin3liang/linux.git
+S: Maintained
+F: drivers/gpu/drm/hisilicon/
+F: Documentation/devicetree/bindings/display/hisilicon/
+
DRM DRIVERS FOR NVIDIA TEGRA
M: Thierry Reding <thierry.reding@gmail.com>
M: Terje Bergström <tbergstrom@nvidia.com>
diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
index cd515029bb49..87f9ab68e8d1 100644
--- a/drivers/gpu/drm/Kconfig
+++ b/drivers/gpu/drm/Kconfig
@@ -285,3 +285,5 @@ source "drivers/gpu/drm/vc4/Kconfig"
source "drivers/gpu/drm/etnaviv/Kconfig"
source "drivers/gpu/drm/arc/Kconfig"
+
+source "drivers/gpu/drm/hisilicon/Kconfig"
diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile
index 1a26b4eb1ce0..43c2abf425ee 100644
--- a/drivers/gpu/drm/Makefile
+++ b/drivers/gpu/drm/Makefile
@@ -80,3 +80,4 @@ obj-y += bridge/
obj-$(CONFIG_DRM_FSL_DCU) += fsl-dcu/
obj-$(CONFIG_DRM_ETNAVIV) += etnaviv/
obj-$(CONFIG_DRM_ARCPGU)+= arc/
+obj-y += hisilicon/
diff --git a/drivers/gpu/drm/hisilicon/Kconfig b/drivers/gpu/drm/hisilicon/Kconfig
new file mode 100644
index 000000000000..558c61b1b8e8
--- /dev/null
+++ b/drivers/gpu/drm/hisilicon/Kconfig
@@ -0,0 +1,5 @@
+#
+# hisilicon drm device configuration.
+# Please keep this list sorted alphabetically
+
+source "drivers/gpu/drm/hisilicon/kirin/Kconfig"
diff --git a/drivers/gpu/drm/hisilicon/Makefile b/drivers/gpu/drm/hisilicon/Makefile
new file mode 100644
index 000000000000..e3f6d493c996
--- /dev/null
+++ b/drivers/gpu/drm/hisilicon/Makefile
@@ -0,0 +1,5 @@
+#
+# Makefile for hisilicon drm drivers.
+# Please keep this list sorted alphabetically
+
+obj-$(CONFIG_DRM_HISI_KIRIN) += kirin/
diff --git a/drivers/gpu/drm/hisilicon/kirin/Kconfig b/drivers/gpu/drm/hisilicon/kirin/Kconfig
new file mode 100644
index 000000000000..ea0df6115f7e
--- /dev/null
+++ b/drivers/gpu/drm/hisilicon/kirin/Kconfig
@@ -0,0 +1,18 @@
+config DRM_HISI_KIRIN
+ tristate "DRM Support for Hisilicon Kirin series SoCs Platform"
+ depends on DRM && OF && ARM64
+ select DRM_KMS_HELPER
+ select DRM_GEM_CMA_HELPER
+ select DRM_KMS_CMA_HELPER
+ help
+ Choose this option if you have a hisilicon Kirin chipsets(hi6220).
+ If M is selected the module will be called kirin-drm.
+
+config HISI_KIRIN_DW_DSI
+ tristate "HiSilicon Kirin specific extensions for Synopsys DW MIPI DSI"
+ depends on DRM_HISI_KIRIN
+ select DRM_MIPI_DSI
+ help
+ This selects support for HiSilicon Kirin SoC specific extensions for
+ the Synopsys DesignWare DSI driver. If you want to enable MIPI DSI on
+ hi6220 based SoC, you should selet this option.
diff --git a/drivers/gpu/drm/hisilicon/kirin/Makefile b/drivers/gpu/drm/hisilicon/kirin/Makefile
new file mode 100644
index 000000000000..cdf61589485c
--- /dev/null
+++ b/drivers/gpu/drm/hisilicon/kirin/Makefile
@@ -0,0 +1,6 @@
+kirin-drm-y := kirin_drm_drv.o \
+ kirin_drm_ade.o
+
+obj-$(CONFIG_DRM_HISI_KIRIN) += kirin-drm.o
+
+obj-$(CONFIG_HISI_KIRIN_DW_DSI) += dw_drm_dsi.o
diff --git a/drivers/gpu/drm/hisilicon/kirin/dw_drm_dsi.c b/drivers/gpu/drm/hisilicon/kirin/dw_drm_dsi.c
new file mode 100644
index 000000000000..bfbc2159250d
--- /dev/null
+++ b/drivers/gpu/drm/hisilicon/kirin/dw_drm_dsi.c
@@ -0,0 +1,857 @@
+/*
+ * DesignWare MIPI DSI Host Controller v1.02 driver
+ *
+ * Copyright (c) 2016 Linaro Limited.
+ * Copyright (c) 2014-2016 Hisilicon Limited.
+ *
+ * Author:
+ * Xinliang Liu <z.liuxinliang@hisilicon.com>
+ * Xinliang Liu <xinliang.liu@linaro.org>
+ * Xinwei Kong <kong.kongxinwei@hisilicon.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/clk.h>
+#include <linux/component.h>
+#include <linux/of_graph.h>
+
+#include <drm/drm_of.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_mipi_dsi.h>
+#include <drm/drm_encoder_slave.h>
+#include <drm/drm_atomic_helper.h>
+
+#include "dw_dsi_reg.h"
+
+#define MAX_TX_ESC_CLK 10
+#define ROUND(x, y) ((x) / (y) + \
+ ((x) % (y) * 10 / (y) >= 5 ? 1 : 0))
+#define PHY_REF_CLK_RATE 19200000
+#define PHY_REF_CLK_PERIOD_PS (1000000000 / (PHY_REF_CLK_RATE / 1000))
+
+#define encoder_to_dsi(encoder) \
+ container_of(encoder, struct dw_dsi, encoder)
+#define host_to_dsi(host) \
+ container_of(host, struct dw_dsi, host)
+
+struct mipi_phy_params {
+ u32 clk_t_lpx;
+ u32 clk_t_hs_prepare;
+ u32 clk_t_hs_zero;
+ u32 clk_t_hs_trial;
+ u32 clk_t_wakeup;
+ u32 data_t_lpx;
+ u32 data_t_hs_prepare;
+ u32 data_t_hs_zero;
+ u32 data_t_hs_trial;
+ u32 data_t_ta_go;
+ u32 data_t_ta_get;
+ u32 data_t_wakeup;
+ u32 hstx_ckg_sel;
+ u32 pll_fbd_div5f;
+ u32 pll_fbd_div1f;
+ u32 pll_fbd_2p;
+ u32 pll_enbwt;
+ u32 pll_fbd_p;
+ u32 pll_fbd_s;
+ u32 pll_pre_div1p;
+ u32 pll_pre_p;
+ u32 pll_vco_750M;
+ u32 pll_lpf_rs;
+ u32 pll_lpf_cs;
+ u32 clklp2hs_time;
+ u32 clkhs2lp_time;
+ u32 lp2hs_time;
+ u32 hs2lp_time;
+ u32 clk_to_data_delay;
+ u32 data_to_clk_delay;
+ u32 lane_byte_clk_kHz;
+ u32 clk_division;
+};
+
+struct dsi_hw_ctx {
+ void __iomem *base;
+ struct clk *pclk;
+};
+
+struct dw_dsi {
+ struct drm_encoder encoder;
+ struct drm_bridge *bridge;
+ struct mipi_dsi_host host;
+ struct drm_display_mode cur_mode;
+ struct dsi_hw_ctx *ctx;
+ struct mipi_phy_params phy;
+
+ u32 lanes;
+ enum mipi_dsi_pixel_format format;
+ unsigned long mode_flags;
+ bool enable;
+};
+
+struct dsi_data {
+ struct dw_dsi dsi;
+ struct dsi_hw_ctx ctx;
+};
+
+struct dsi_phy_range {
+ u32 min_range_kHz;
+ u32 max_range_kHz;
+ u32 pll_vco_750M;
+ u32 hstx_ckg_sel;
+};
+
+static const struct dsi_phy_range dphy_range_info[] = {
+ { 46875, 62500, 1, 7 },
+ { 62500, 93750, 0, 7 },
+ { 93750, 125000, 1, 6 },
+ { 125000, 187500, 0, 6 },
+ { 187500, 250000, 1, 5 },
+ { 250000, 375000, 0, 5 },
+ { 375000, 500000, 1, 4 },
+ { 500000, 750000, 0, 4 },
+ { 750000, 1000000, 1, 0 },
+ { 1000000, 1500000, 0, 0 }
+};
+
+static u32 dsi_calc_phy_rate(u32 req_kHz, struct mipi_phy_params *phy)
+{
+ u32 ref_clk_ps = PHY_REF_CLK_PERIOD_PS;
+ u32 tmp_kHz = req_kHz;
+ u32 i = 0;
+ u32 q_pll = 1;
+ u32 m_pll = 0;
+ u32 n_pll = 0;
+ u32 r_pll = 1;
+ u32 m_n = 0;
+ u32 m_n_int = 0;
+ u32 f_kHz = 0;
+ u64 temp;
+
+ /*
+ * Find a rate >= req_kHz.
+ */
+ do {
+ f_kHz = tmp_kHz;
+
+ for (i = 0; i < ARRAY_SIZE(dphy_range_info); i++)
+ if (f_kHz >= dphy_range_info[i].min_range_kHz &&
+ f_kHz <= dphy_range_info[i].max_range_kHz)
+ break;
+
+ if (i == ARRAY_SIZE(dphy_range_info)) {
+ DRM_ERROR("%dkHz out of range\n", f_kHz);
+ return 0;
+ }
+
+ phy->pll_vco_750M = dphy_range_info[i].pll_vco_750M;
+ phy->hstx_ckg_sel = dphy_range_info[i].hstx_ckg_sel;
+
+ if (phy->hstx_ckg_sel <= 7 &&
+ phy->hstx_ckg_sel >= 4)
+ q_pll = 0x10 >> (7 - phy->hstx_ckg_sel);
+
+ temp = f_kHz * (u64)q_pll * (u64)ref_clk_ps;
+ m_n_int = temp / (u64)1000000000;
+ m_n = (temp % (u64)1000000000) / (u64)100000000;
+
+ if (m_n_int % 2 == 0) {
+ if (m_n * 6 >= 50) {
+ n_pll = 2;
+ m_pll = (m_n_int + 1) * n_pll;
+ } else if (m_n * 6 >= 30) {
+ n_pll = 3;
+ m_pll = m_n_int * n_pll + 2;
+ } else {
+ n_pll = 1;
+ m_pll = m_n_int * n_pll;
+ }
+ } else {
+ if (m_n * 6 >= 50) {
+ n_pll = 1;
+ m_pll = (m_n_int + 1) * n_pll;
+ } else if (m_n * 6 >= 30) {
+ n_pll = 1;
+ m_pll = (m_n_int + 1) * n_pll;
+ } else if (m_n * 6 >= 10) {
+ n_pll = 3;
+ m_pll = m_n_int * n_pll + 1;
+ } else {
+ n_pll = 2;
+ m_pll = m_n_int * n_pll;
+ }
+ }
+
+ if (n_pll == 1) {
+ phy->pll_fbd_p = 0;
+ phy->pll_pre_div1p = 1;
+ } else {
+ phy->pll_fbd_p = n_pll;
+ phy->pll_pre_div1p = 0;
+ }
+
+ if (phy->pll_fbd_2p <= 7 && phy->pll_fbd_2p >= 4)
+ r_pll = 0x10 >> (7 - phy->pll_fbd_2p);
+
+ if (m_pll == 2) {
+ phy->pll_pre_p = 0;
+ phy->pll_fbd_s = 0;
+ phy->pll_fbd_div1f = 0;
+ phy->pll_fbd_div5f = 1;
+ } else if (m_pll >= 2 * 2 * r_pll && m_pll <= 2 * 4 * r_pll) {
+ phy->pll_pre_p = m_pll / (2 * r_pll);
+ phy->pll_fbd_s = 0;
+ phy->pll_fbd_div1f = 1;
+ phy->pll_fbd_div5f = 0;
+ } else if (m_pll >= 2 * 5 * r_pll && m_pll <= 2 * 150 * r_pll) {
+ if (((m_pll / (2 * r_pll)) % 2) == 0) {
+ phy->pll_pre_p =
+ (m_pll / (2 * r_pll)) / 2 - 1;
+ phy->pll_fbd_s =
+ (m_pll / (2 * r_pll)) % 2 + 2;
+ } else {
+ phy->pll_pre_p =
+ (m_pll / (2 * r_pll)) / 2;
+ phy->pll_fbd_s =
+ (m_pll / (2 * r_pll)) % 2;
+ }
+ phy->pll_fbd_div1f = 0;
+ phy->pll_fbd_div5f = 0;
+ } else {
+ phy->pll_pre_p = 0;
+ phy->pll_fbd_s = 0;
+ phy->pll_fbd_div1f = 0;
+ phy->pll_fbd_div5f = 1;
+ }
+
+ f_kHz = (u64)1000000000 * (u64)m_pll /
+ ((u64)ref_clk_ps * (u64)n_pll * (u64)q_pll);
+
+ if (f_kHz >= req_kHz)
+ break;
+
+ tmp_kHz += 10;
+
+ } while (true);
+
+ return f_kHz;
+}
+
+static void dsi_get_phy_params(u32 phy_req_kHz,
+ struct mipi_phy_params *phy)
+{
+ u32 ref_clk_ps = PHY_REF_CLK_PERIOD_PS;
+ u32 phy_rate_kHz;
+ u32 ui;
+
+ memset(phy, 0, sizeof(*phy));
+
+ phy_rate_kHz = dsi_calc_phy_rate(phy_req_kHz, phy);
+ if (!phy_rate_kHz)
+ return;
+
+ ui = 1000000 / phy_rate_kHz;
+
+ phy->clk_t_lpx = ROUND(50, 8 * ui);
+ phy->clk_t_hs_prepare = ROUND(133, 16 * ui) - 1;
+
+ phy->clk_t_hs_zero = ROUND(262, 8 * ui);
+ phy->clk_t_hs_trial = 2 * (ROUND(60, 8 * ui) - 1);
+ phy->clk_t_wakeup = ROUND(1000000, (ref_clk_ps / 1000) - 1);
+ if (phy->clk_t_wakeup > 0xff)
+ phy->clk_t_wakeup = 0xff;
+ phy->data_t_wakeup = phy->clk_t_wakeup;
+ phy->data_t_lpx = phy->clk_t_lpx;
+ phy->data_t_hs_prepare = ROUND(125 + 10 * ui, 16 * ui) - 1;
+ phy->data_t_hs_zero = ROUND(105 + 6 * ui, 8 * ui);
+ phy->data_t_hs_trial = 2 * (ROUND(60 + 4 * ui, 8 * ui) - 1);
+ phy->data_t_ta_go = 3;
+ phy->data_t_ta_get = 4;
+
+ phy->pll_enbwt = 1;
+ phy->clklp2hs_time = ROUND(407, 8 * ui) + 12;
+ phy->clkhs2lp_time = ROUND(105 + 12 * ui, 8 * ui);
+ phy->lp2hs_time = ROUND(240 + 12 * ui, 8 * ui) + 1;
+ phy->hs2lp_time = phy->clkhs2lp_time;
+ phy->clk_to_data_delay = 1 + phy->clklp2hs_time;
+ phy->data_to_clk_delay = ROUND(60 + 52 * ui, 8 * ui) +
+ phy->clkhs2lp_time;
+
+ phy->lane_byte_clk_kHz = phy_rate_kHz / 8;
+ phy->clk_division =
+ DIV_ROUND_UP(phy->lane_byte_clk_kHz, MAX_TX_ESC_CLK);
+}
+
+static u32 dsi_get_dpi_color_coding(enum mipi_dsi_pixel_format format)
+{
+ u32 val;
+
+ /*
+ * TODO: only support RGB888 now, to support more
+ */
+ switch (format) {
+ case MIPI_DSI_FMT_RGB888:
+ val = DSI_24BITS_1;
+ break;
+ default:
+ val = DSI_24BITS_1;
+ break;
+ }
+
+ return val;
+}
+
+/*
+ * dsi phy reg write function
+ */
+static void dsi_phy_tst_set(void __iomem *base, u32 reg, u32 val)
+{
+ u32 reg_write = 0x10000 + reg;
+
+ /*
+ * latch reg first
+ */
+ writel(reg_write, base + PHY_TST_CTRL1);
+ writel(0x02, base + PHY_TST_CTRL0);
+ writel(0x00, base + PHY_TST_CTRL0);
+
+ /*
+ * then latch value
+ */
+ writel(val, base + PHY_TST_CTRL1);
+ writel(0x02, base + PHY_TST_CTRL0);
+ writel(0x00, base + PHY_TST_CTRL0);
+}
+
+static void dsi_set_phy_timer(void __iomem *base,
+ struct mipi_phy_params *phy,
+ u32 lanes)
+{
+ u32 val;
+
+ /*
+ * Set lane value and phy stop wait time.
+ */
+ val = (lanes - 1) | (PHY_STOP_WAIT_TIME << 8);
+ writel(val, base + PHY_IF_CFG);
+
+ /*
+ * Set phy clk division.
+ */
+ val = readl(base + CLKMGR_CFG) | phy->clk_division;
+ writel(val, base + CLKMGR_CFG);
+
+ /*
+ * Set lp and hs switching params.
+ */
+ dw_update_bits(base + PHY_TMR_CFG, 24, MASK(8), phy->hs2lp_time);
+ dw_update_bits(base + PHY_TMR_CFG, 16, MASK(8), phy->lp2hs_time);
+ dw_update_bits(base + PHY_TMR_LPCLK_CFG, 16, MASK(10),
+ phy->clkhs2lp_time);
+ dw_update_bits(base + PHY_TMR_LPCLK_CFG, 0, MASK(10),
+ phy->clklp2hs_time);
+ dw_update_bits(base + CLK_DATA_TMR_CFG, 8, MASK(8),
+ phy->data_to_clk_delay);
+ dw_update_bits(base + CLK_DATA_TMR_CFG, 0, MASK(8),
+ phy->clk_to_data_delay);
+}
+
+static void dsi_set_mipi_phy(void __iomem *base,
+ struct mipi_phy_params *phy,
+ u32 lanes)
+{
+ u32 delay_count;
+ u32 val;
+ u32 i;
+
+ /* phy timer setting */
+ dsi_set_phy_timer(base, phy, lanes);
+
+ /*
+ * Reset to clean up phy tst params.
+ */
+ writel(0, base + PHY_RSTZ);
+ writel(0, base + PHY_TST_CTRL0);
+ writel(1, base + PHY_TST_CTRL0);
+ writel(0, base + PHY_TST_CTRL0);
+
+ /*
+ * Clock lane timing control setting: TLPX, THS-PREPARE,
+ * THS-ZERO, THS-TRAIL, TWAKEUP.
+ */
+ dsi_phy_tst_set(base, CLK_TLPX, phy->clk_t_lpx);
+ dsi_phy_tst_set(base, CLK_THS_PREPARE, phy->clk_t_hs_prepare);
+ dsi_phy_tst_set(base, CLK_THS_ZERO, phy->clk_t_hs_zero);
+ dsi_phy_tst_set(base, CLK_THS_TRAIL, phy->clk_t_hs_trial);
+ dsi_phy_tst_set(base, CLK_TWAKEUP, phy->clk_t_wakeup);
+
+ /*
+ * Data lane timing control setting: TLPX, THS-PREPARE,
+ * THS-ZERO, THS-TRAIL, TTA-GO, TTA-GET, TWAKEUP.
+ */
+ for (i = 0; i < lanes; i++) {
+ dsi_phy_tst_set(base, DATA_TLPX(i), phy->data_t_lpx);
+ dsi_phy_tst_set(base, DATA_THS_PREPARE(i),
+ phy->data_t_hs_prepare);
+ dsi_phy_tst_set(base, DATA_THS_ZERO(i), phy->data_t_hs_zero);
+ dsi_phy_tst_set(base, DATA_THS_TRAIL(i), phy->data_t_hs_trial);
+ dsi_phy_tst_set(base, DATA_TTA_GO(i), phy->data_t_ta_go);
+ dsi_phy_tst_set(base, DATA_TTA_GET(i), phy->data_t_ta_get);
+ dsi_phy_tst_set(base, DATA_TWAKEUP(i), phy->data_t_wakeup);
+ }
+
+ /*
+ * physical configuration: I, pll I, pll II, pll III,
+ * pll IV, pll V.
+ */
+ dsi_phy_tst_set(base, PHY_CFG_I, phy->hstx_ckg_sel);
+ val = (phy->pll_fbd_div5f << 5) + (phy->pll_fbd_div1f << 4) +
+ (phy->pll_fbd_2p << 1) + phy->pll_enbwt;
+ dsi_phy_tst_set(base, PHY_CFG_PLL_I, val);
+ dsi_phy_tst_set(base, PHY_CFG_PLL_II, phy->pll_fbd_p);
+ dsi_phy_tst_set(base, PHY_CFG_PLL_III, phy->pll_fbd_s);
+ val = (phy->pll_pre_div1p << 7) + phy->pll_pre_p;
+ dsi_phy_tst_set(base, PHY_CFG_PLL_IV, val);
+ val = (5 << 5) + (phy->pll_vco_750M << 4) + (phy->pll_lpf_rs << 2) +
+ phy->pll_lpf_cs;
+ dsi_phy_tst_set(base, PHY_CFG_PLL_V, val);
+
+ writel(PHY_ENABLECLK, base + PHY_RSTZ);
+ udelay(1);
+ writel(PHY_ENABLECLK | PHY_UNSHUTDOWNZ, base + PHY_RSTZ);
+ udelay(1);
+ writel(PHY_ENABLECLK | PHY_UNRSTZ | PHY_UNSHUTDOWNZ, base + PHY_RSTZ);
+ usleep_range(1000, 1500);
+
+ /*
+ * wait for phy's clock ready
+ */
+ delay_count = 100;
+ while (delay_count--) {
+ val = readl(base + PHY_STATUS);
+ if ((BIT(0) | BIT(2)) & val)
+ break;
+
+ udelay(1);
+ }
+
+ if (!delay_count)
+ DRM_INFO("phylock and phystopstateclklane is not ready.\n");
+}
+
+static void dsi_set_mode_timing(void __iomem *base,
+ u32 lane_byte_clk_kHz,
+ struct drm_display_mode *mode,
+ enum mipi_dsi_pixel_format format)
+{
+ u32 hfp, hbp, hsw, vfp, vbp, vsw;
+ u32 hline_time;
+ u32 hsa_time;
+ u32 hbp_time;
+ u32 pixel_clk_kHz;
+ int htot, vtot;
+ u32 val;
+ u64 tmp;
+
+ val = dsi_get_dpi_color_coding(format);
+ writel(val, base + DPI_COLOR_CODING);
+
+ val = (mode->flags & DRM_MODE_FLAG_NHSYNC ? 1 : 0) << 2;
+ val |= (mode->flags & DRM_MODE_FLAG_NVSYNC ? 1 : 0) << 1;
+ writel(val, base + DPI_CFG_POL);
+
+ /*
+ * The DSI IP accepts vertical timing using lines as normal,
+ * but horizontal timing is a mixture of pixel-clocks for the
+ * active region and byte-lane clocks for the blanking-related
+ * timings. hfp is specified as the total hline_time in byte-
+ * lane clocks minus hsa, hbp and active.
+ */
+ pixel_clk_kHz = mode->clock;
+ htot = mode->htotal;
+ vtot = mode->vtotal;
+ hfp = mode->hsync_start - mode->hdisplay;
+ hbp = mode->htotal - mode->hsync_end;
+ hsw = mode->hsync_end - mode->hsync_start;
+ vfp = mode->vsync_start - mode->vdisplay;
+ vbp = mode->vtotal - mode->vsync_end;
+ vsw = mode->vsync_end - mode->vsync_start;
+ if (vsw > 15) {
+ DRM_DEBUG_DRIVER("vsw exceeded 15\n");
+ vsw = 15;
+ }
+
+ hsa_time = (hsw * lane_byte_clk_kHz) / pixel_clk_kHz;
+ hbp_time = (hbp * lane_byte_clk_kHz) / pixel_clk_kHz;
+ tmp = (u64)htot * (u64)lane_byte_clk_kHz;
+ hline_time = DIV_ROUND_UP(tmp, pixel_clk_kHz);
+
+ /* all specified in byte-lane clocks */
+ writel(hsa_time, base + VID_HSA_TIME);
+ writel(hbp_time, base + VID_HBP_TIME);
+ writel(hline_time, base + VID_HLINE_TIME);
+
+ writel(vsw, base + VID_VSA_LINES);
+ writel(vbp, base + VID_VBP_LINES);
+ writel(vfp, base + VID_VFP_LINES);
+ writel(mode->vdisplay, base + VID_VACTIVE_LINES);
+ writel(mode->hdisplay, base + VID_PKT_SIZE);
+
+ DRM_DEBUG_DRIVER("htot=%d, hfp=%d, hbp=%d, hsw=%d\n",
+ htot, hfp, hbp, hsw);
+ DRM_DEBUG_DRIVER("vtol=%d, vfp=%d, vbp=%d, vsw=%d\n",
+ vtot, vfp, vbp, vsw);
+ DRM_DEBUG_DRIVER("hsa_time=%d, hbp_time=%d, hline_time=%d\n",
+ hsa_time, hbp_time, hline_time);
+}
+
+static void dsi_set_video_mode(void __iomem *base, unsigned long flags)
+{
+ u32 val;
+ u32 mode_mask = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
+ MIPI_DSI_MODE_VIDEO_SYNC_PULSE;
+ u32 non_burst_sync_pulse = MIPI_DSI_MODE_VIDEO |
+ MIPI_DSI_MODE_VIDEO_SYNC_PULSE;
+ u32 non_burst_sync_event = MIPI_DSI_MODE_VIDEO;
+
+ /*
+ * choose video mode type
+ */
+ if ((flags & mode_mask) == non_burst_sync_pulse)
+ val = DSI_NON_BURST_SYNC_PULSES;
+ else if ((flags & mode_mask) == non_burst_sync_event)
+ val = DSI_NON_BURST_SYNC_EVENTS;
+ else
+ val = DSI_BURST_SYNC_PULSES_1;
+ writel(val, base + VID_MODE_CFG);
+
+ writel(PHY_TXREQUESTCLKHS, base + LPCLK_CTRL);
+ writel(DSI_VIDEO_MODE, base + MODE_CFG);
+}
+
+static void dsi_mipi_init(struct dw_dsi *dsi)
+{
+ struct dsi_hw_ctx *ctx = dsi->ctx;
+ struct mipi_phy_params *phy = &dsi->phy;
+ struct drm_display_mode *mode = &dsi->cur_mode;
+ u32 bpp = mipi_dsi_pixel_format_to_bpp(dsi->format);
+ void __iomem *base = ctx->base;
+ u32 dphy_req_kHz;
+
+ /*
+ * count phy params
+ */
+ dphy_req_kHz = mode->clock * bpp / dsi->lanes;
+ dsi_get_phy_params(dphy_req_kHz, phy);
+
+ /* reset Core */
+ writel(RESET, base + PWR_UP);
+
+ /* set dsi phy params */
+ dsi_set_mipi_phy(base, phy, dsi->lanes);
+
+ /* set dsi mode timing */
+ dsi_set_mode_timing(base, phy->lane_byte_clk_kHz, mode, dsi->format);
+
+ /* set dsi video mode */
+ dsi_set_video_mode(base, dsi->mode_flags);
+
+ /* dsi wake up */
+ writel(POWERUP, base + PWR_UP);
+
+ DRM_DEBUG_DRIVER("lanes=%d, pixel_clk=%d kHz, bytes_freq=%d kHz\n",
+ dsi->lanes, mode->clock, phy->lane_byte_clk_kHz);
+}
+
+static void dsi_encoder_disable(struct drm_encoder *encoder)
+{
+ struct dw_dsi *dsi = encoder_to_dsi(encoder);
+ struct dsi_hw_ctx *ctx = dsi->ctx;
+ void __iomem *base = ctx->base;
+
+ if (!dsi->enable)
+ return;
+
+ writel(0, base + PWR_UP);
+ writel(0, base + LPCLK_CTRL);
+ writel(0, base + PHY_RSTZ);
+ clk_disable_unprepare(ctx->pclk);
+
+ dsi->enable = false;
+}
+
+static void dsi_encoder_enable(struct drm_encoder *encoder)
+{
+ struct dw_dsi *dsi = encoder_to_dsi(encoder);
+ struct dsi_hw_ctx *ctx = dsi->ctx;
+ int ret;
+
+ if (dsi->enable)
+ return;
+
+ ret = clk_prepare_enable(ctx->pclk);
+ if (ret) {
+ DRM_ERROR("fail to enable pclk: %d\n", ret);
+ return;
+ }
+
+ dsi_mipi_init(dsi);
+
+ dsi->enable = true;
+}
+
+static void dsi_encoder_mode_set(struct drm_encoder *encoder,
+ struct drm_display_mode *mode,
+ struct drm_display_mode *adj_mode)
+{
+ struct dw_dsi *dsi = encoder_to_dsi(encoder);
+
+ drm_mode_copy(&dsi->cur_mode, adj_mode);
+}
+
+static int dsi_encoder_atomic_check(struct drm_encoder *encoder,
+ struct drm_crtc_state *crtc_state,
+ struct drm_connector_state *conn_state)
+{
+ /* do nothing */
+ return 0;
+}
+
+static const struct drm_encoder_helper_funcs dw_encoder_helper_funcs = {
+ .atomic_check = dsi_encoder_atomic_check,
+ .mode_set = dsi_encoder_mode_set,
+ .enable = dsi_encoder_enable,
+ .disable = dsi_encoder_disable
+};
+
+static const struct drm_encoder_funcs dw_encoder_funcs = {
+ .destroy = drm_encoder_cleanup,
+};
+
+static int dw_drm_encoder_init(struct device *dev,
+ struct drm_device *drm_dev,
+ struct drm_encoder *encoder)
+{
+ int ret;
+ u32 crtc_mask = drm_of_find_possible_crtcs(drm_dev, dev->of_node);
+
+ if (!crtc_mask) {
+ DRM_ERROR("failed to find crtc mask\n");
+ return -EINVAL;
+ }
+
+ encoder->possible_crtcs = crtc_mask;
+ ret = drm_encoder_init(drm_dev, encoder, &dw_encoder_funcs,
+ DRM_MODE_ENCODER_DSI, NULL);
+ if (ret) {
+ DRM_ERROR("failed to init dsi encoder\n");
+ return ret;
+ }
+
+ drm_encoder_helper_add(encoder, &dw_encoder_helper_funcs);
+
+ return 0;
+}
+
+static int dsi_host_attach(struct mipi_dsi_host *host,
+ struct mipi_dsi_device *mdsi)
+{
+ struct dw_dsi *dsi = host_to_dsi(host);
+
+ if (mdsi->lanes < 1 || mdsi->lanes > 4) {
+ DRM_ERROR("dsi device params invalid\n");
+ return -EINVAL;
+ }
+
+ dsi->lanes = mdsi->lanes;
+ dsi->format = mdsi->format;
+ dsi->mode_flags = mdsi->mode_flags;
+
+ return 0;
+}
+
+static int dsi_host_detach(struct mipi_dsi_host *host,
+ struct mipi_dsi_device *mdsi)
+{
+ /* do nothing */
+ return 0;
+}
+
+static const struct mipi_dsi_host_ops dsi_host_ops = {
+ .attach = dsi_host_attach,
+ .detach = dsi_host_detach,
+};
+
+static int dsi_host_init(struct device *dev, struct dw_dsi *dsi)
+{
+ struct mipi_dsi_host *host = &dsi->host;
+ int ret;
+
+ host->dev = dev;
+ host->ops = &dsi_host_ops;
+ ret = mipi_dsi_host_register(host);
+ if (ret) {
+ DRM_ERROR("failed to register dsi host\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+static int dsi_bridge_init(struct drm_device *dev, struct dw_dsi *dsi)
+{
+ struct drm_encoder *encoder = &dsi->encoder;
+ struct drm_bridge *bridge = dsi->bridge;
+ int ret;
+
+ /* associate the bridge to dsi encoder */
+ encoder->bridge = bridge;
+ bridge->encoder = encoder;
+
+ ret = drm_bridge_attach(dev, bridge);
+ if (ret) {
+ DRM_ERROR("failed to attach external bridge\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+static int dsi_bind(struct device *dev, struct device *master, void *data)
+{
+ struct dsi_data *ddata = dev_get_drvdata(dev);
+ struct dw_dsi *dsi = &ddata->dsi;
+ struct drm_device *drm_dev = data;
+ int ret;
+
+ ret = dw_drm_encoder_init(dev, drm_dev, &dsi->encoder);
+ if (ret)
+ return ret;
+
+ ret = dsi_host_init(dev, dsi);
+ if (ret)
+ return ret;
+
+ ret = dsi_bridge_init(drm_dev, dsi);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static void dsi_unbind(struct device *dev, struct device *master, void *data)
+{
+ /* do nothing */
+}
+
+static const struct component_ops dsi_ops = {
+ .bind = dsi_bind,
+ .unbind = dsi_unbind,
+};
+
+static int dsi_parse_dt(struct platform_device *pdev, struct dw_dsi *dsi)
+{
+ struct dsi_hw_ctx *ctx = dsi->ctx;
+ struct device_node *np = pdev->dev.of_node;
+ struct device_node *endpoint, *bridge_node;
+ struct drm_bridge *bridge;
+ struct resource *res;
+
+ /*
+ * Get the endpoint node. In our case, dsi has one output port1
+ * to which the external HDMI bridge is connected.
+ */
+ endpoint = of_graph_get_endpoint_by_regs(np, 1, -1);
+ if (!endpoint) {
+ DRM_ERROR("no valid endpoint node\n");
+ return -ENODEV;
+ }
+ of_node_put(endpoint);
+
+ bridge_node = of_graph_get_remote_port_parent(endpoint);
+ if (!bridge_node) {
+ DRM_ERROR("no valid bridge node\n");
+ return -ENODEV;
+ }
+ of_node_put(bridge_node);
+
+ bridge = of_drm_find_bridge(bridge_node);
+ if (!bridge) {
+ DRM_INFO("wait for external HDMI bridge driver.\n");
+ return -EPROBE_DEFER;
+ }
+ dsi->bridge = bridge;
+
+ ctx->pclk = devm_clk_get(&pdev->dev, "pclk");
+ if (IS_ERR(ctx->pclk)) {
+ DRM_ERROR("failed to get pclk clock\n");
+ return PTR_ERR(ctx->pclk);
+ }
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ ctx->base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(ctx->base)) {
+ DRM_ERROR("failed to remap dsi io region\n");
+ return PTR_ERR(ctx->base);
+ }
+
+ return 0;
+}
+
+static int dsi_probe(struct platform_device *pdev)
+{
+ struct dsi_data *data;
+ struct dw_dsi *dsi;
+ struct dsi_hw_ctx *ctx;
+ int ret;
+
+ data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
+ if (!data) {
+ DRM_ERROR("failed to allocate dsi data.\n");
+ return -ENOMEM;
+ }
+ dsi = &data->dsi;
+ ctx = &data->ctx;
+ dsi->ctx = ctx;
+
+ ret = dsi_parse_dt(pdev, dsi);
+ if (ret)
+ return ret;
+
+ platform_set_drvdata(pdev, data);
+
+ return component_add(&pdev->dev, &dsi_ops);
+}
+
+static int dsi_remove(struct platform_device *pdev)
+{
+ component_del(&pdev->dev, &dsi_ops);
+
+ return 0;
+}
+
+static const struct of_device_id dsi_of_match[] = {
+ {.compatible = "hisilicon,hi6220-dsi"},
+ { }
+};
+MODULE_DEVICE_TABLE(of, dsi_of_match);
+
+static struct platform_driver dsi_driver = {
+ .probe = dsi_probe,
+ .remove = dsi_remove,
+ .driver = {
+ .name = "dw-dsi",
+ .of_match_table = dsi_of_match,
+ },
+};
+
+module_platform_driver(dsi_driver);
+
+MODULE_AUTHOR("Xinliang Liu <xinliang.liu@linaro.org>");
+MODULE_AUTHOR("Xinliang Liu <z.liuxinliang@hisilicon.com>");
+MODULE_AUTHOR("Xinwei Kong <kong.kongxinwei@hisilicon.com>");
+MODULE_DESCRIPTION("DesignWare MIPI DSI Host Controller v1.02 driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/gpu/drm/hisilicon/kirin/dw_dsi_reg.h b/drivers/gpu/drm/hisilicon/kirin/dw_dsi_reg.h
new file mode 100644
index 000000000000..18808fc9f362
--- /dev/null
+++ b/drivers/gpu/drm/hisilicon/kirin/dw_dsi_reg.h
@@ -0,0 +1,103 @@
+/*
+ * Copyright (c) 2016 Linaro Limited.
+ * Copyright (c) 2014-2016 Hisilicon Limited.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#ifndef __DW_DSI_REG_H__
+#define __DW_DSI_REG_H__
+
+#define MASK(x) (BIT(x) - 1)
+
+/*
+ * regs
+ */
+#define PWR_UP 0x04 /* Core power-up */
+#define RESET 0
+#define POWERUP BIT(0)
+#define PHY_IF_CFG 0xA4 /* D-PHY interface configuration */
+#define CLKMGR_CFG 0x08 /* the internal clock dividers */
+#define PHY_RSTZ 0xA0 /* D-PHY reset control */
+#define PHY_ENABLECLK BIT(2)
+#define PHY_UNRSTZ BIT(1)
+#define PHY_UNSHUTDOWNZ BIT(0)
+#define PHY_TST_CTRL0 0xB4 /* D-PHY test interface control 0 */
+#define PHY_TST_CTRL1 0xB8 /* D-PHY test interface control 1 */
+#define CLK_TLPX 0x10
+#define CLK_THS_PREPARE 0x11
+#define CLK_THS_ZERO 0x12
+#define CLK_THS_TRAIL 0x13
+#define CLK_TWAKEUP 0x14
+#define DATA_TLPX(x) (0x20 + ((x) << 4))
+#define DATA_THS_PREPARE(x) (0x21 + ((x) << 4))
+#define DATA_THS_ZERO(x) (0x22 + ((x) << 4))
+#define DATA_THS_TRAIL(x) (0x23 + ((x) << 4))
+#define DATA_TTA_GO(x) (0x24 + ((x) << 4))
+#define DATA_TTA_GET(x) (0x25 + ((x) << 4))
+#define DATA_TWAKEUP(x) (0x26 + ((x) << 4))
+#define PHY_CFG_I 0x60
+#define PHY_CFG_PLL_I 0x63
+#define PHY_CFG_PLL_II 0x64
+#define PHY_CFG_PLL_III 0x65
+#define PHY_CFG_PLL_IV 0x66
+#define PHY_CFG_PLL_V 0x67
+#define DPI_COLOR_CODING 0x10 /* DPI color coding */
+#define DPI_CFG_POL 0x14 /* DPI polarity configuration */
+#define VID_HSA_TIME 0x48 /* Horizontal Sync Active time */
+#define VID_HBP_TIME 0x4C /* Horizontal Back Porch time */
+#define VID_HLINE_TIME 0x50 /* Line time */
+#define VID_VSA_LINES 0x54 /* Vertical Sync Active period */
+#define VID_VBP_LINES 0x58 /* Vertical Back Porch period */
+#define VID_VFP_LINES 0x5C /* Vertical Front Porch period */
+#define VID_VACTIVE_LINES 0x60 /* Vertical resolution */
+#define VID_PKT_SIZE 0x3C /* Video packet size */
+#define VID_MODE_CFG 0x38 /* Video mode configuration */
+#define PHY_TMR_CFG 0x9C /* Data lanes timing configuration */
+#define BTA_TO_CNT 0x8C /* Response timeout definition */
+#define PHY_TMR_LPCLK_CFG 0x98 /* clock lane timing configuration */
+#define CLK_DATA_TMR_CFG 0xCC
+#define LPCLK_CTRL 0x94 /* Low-power in clock lane */
+#define PHY_TXREQUESTCLKHS BIT(0)
+#define MODE_CFG 0x34 /* Video or Command mode selection */
+#define PHY_STATUS 0xB0 /* D-PHY PPI status interface */
+
+#define PHY_STOP_WAIT_TIME 0x30
+
+/*
+ * regs relevant enum
+ */
+enum dpi_color_coding {
+ DSI_24BITS_1 = 5,
+};
+
+enum dsi_video_mode_type {
+ DSI_NON_BURST_SYNC_PULSES = 0,
+ DSI_NON_BURST_SYNC_EVENTS,
+ DSI_BURST_SYNC_PULSES_1,
+ DSI_BURST_SYNC_PULSES_2
+};
+
+enum dsi_work_mode {
+ DSI_VIDEO_MODE = 0,
+ DSI_COMMAND_MODE
+};
+
+/*
+ * Register Write/Read Helper functions
+ */
+static inline void dw_update_bits(void __iomem *addr, u32 bit_start,
+ u32 mask, u32 val)
+{
+ u32 tmp, orig;
+
+ orig = readl(addr);
+ tmp = orig & ~(mask << bit_start);
+ tmp |= (val & mask) << bit_start;
+ writel(tmp, addr);
+}
+
+#endif /* __DW_DRM_DSI_H__ */
diff --git a/drivers/gpu/drm/hisilicon/kirin/kirin_ade_reg.h b/drivers/gpu/drm/hisilicon/kirin/kirin_ade_reg.h
new file mode 100644
index 000000000000..4cf281b7ed63
--- /dev/null
+++ b/drivers/gpu/drm/hisilicon/kirin/kirin_ade_reg.h
@@ -0,0 +1,230 @@
+/*
+ * Copyright (c) 2016 Linaro Limited.
+ * Copyright (c) 2014-2016 Hisilicon Limited.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#ifndef __KIRIN_ADE_REG_H__
+#define __KIRIN_ADE_REG_H__
+
+/*
+ * ADE Registers
+ */
+#define MASK(x) (BIT(x) - 1)
+
+#define ADE_CTRL 0x0004
+#define FRM_END_START_OFST 0
+#define FRM_END_START_MASK MASK(2)
+#define AUTO_CLK_GATE_EN_OFST 0
+#define AUTO_CLK_GATE_EN BIT(0)
+#define ADE_DISP_SRC_CFG 0x0018
+#define ADE_CTRL1 0x008C
+#define ADE_EN 0x0100
+#define ADE_DISABLE 0
+#define ADE_ENABLE 1
+/* reset and reload regs */
+#define ADE_SOFT_RST_SEL(x) (0x0078 + (x) * 0x4)
+#define ADE_RELOAD_DIS(x) (0x00AC + (x) * 0x4)
+#define RDMA_OFST 0
+#define CLIP_OFST 15
+#define SCL_OFST 21
+#define CTRAN_OFST 24
+#define OVLY_OFST 37 /* 32+5 */
+/* channel regs */
+#define RD_CH_CTRL(x) (0x1004 + (x) * 0x80)
+#define RD_CH_ADDR(x) (0x1008 + (x) * 0x80)
+#define RD_CH_SIZE(x) (0x100C + (x) * 0x80)
+#define RD_CH_STRIDE(x) (0x1010 + (x) * 0x80)
+#define RD_CH_SPACE(x) (0x1014 + (x) * 0x80)
+#define RD_CH_EN(x) (0x1020 + (x) * 0x80)
+/* overlay regs */
+#define ADE_OVLY1_TRANS_CFG 0x002C
+#define ADE_OVLY_CTL 0x0098
+#define ADE_OVLY_CH_XY0(x) (0x2004 + (x) * 4)
+#define ADE_OVLY_CH_XY1(x) (0x2024 + (x) * 4)
+#define ADE_OVLY_CH_CTL(x) (0x204C + (x) * 4)
+#define ADE_OVLY_OUTPUT_SIZE(x) (0x2070 + (x) * 8)
+#define OUTPUT_XSIZE_OFST 16
+#define ADE_OVLYX_CTL(x) (0x209C + (x) * 4)
+#define CH_OVLY_SEL_OFST(x) ((x) * 4)
+#define CH_OVLY_SEL_MASK MASK(2)
+#define CH_OVLY_SEL_VAL(x) ((x) + 1)
+#define CH_ALP_MODE_OFST 0
+#define CH_ALP_SEL_OFST 2
+#define CH_UNDER_ALP_SEL_OFST 4
+#define CH_EN_OFST 6
+#define CH_ALP_GBL_OFST 15
+#define CH_SEL_OFST 28
+/* ctran regs */
+#define ADE_CTRAN_DIS(x) (0x5004 + (x) * 0x100)
+#define CTRAN_BYPASS_ON 1
+#define CTRAN_BYPASS_OFF 0
+#define ADE_CTRAN_IMAGE_SIZE(x) (0x503C + (x) * 0x100)
+/* clip regs */
+#define ADE_CLIP_DISABLE(x) (0x6800 + (x) * 0x100)
+#define ADE_CLIP_SIZE0(x) (0x6804 + (x) * 0x100)
+#define ADE_CLIP_SIZE1(x) (0x6808 + (x) * 0x100)
+
+/*
+ * LDI Registers
+ */
+#define LDI_HRZ_CTRL0 0x7400
+#define HBP_OFST 20
+#define LDI_HRZ_CTRL1 0x7404
+#define LDI_VRT_CTRL0 0x7408
+#define VBP_OFST 20
+#define LDI_VRT_CTRL1 0x740C
+#define LDI_PLR_CTRL 0x7410
+#define FLAG_NVSYNC BIT(0)
+#define FLAG_NHSYNC BIT(1)
+#define FLAG_NPIXCLK BIT(2)
+#define FLAG_NDE BIT(3)
+#define LDI_DSP_SIZE 0x7414
+#define VSIZE_OFST 20
+#define LDI_INT_EN 0x741C
+#define FRAME_END_INT_EN_OFST 1
+#define LDI_CTRL 0x7420
+#define BPP_OFST 3
+#define DATA_GATE_EN BIT(2)
+#define LDI_EN BIT(0)
+#define LDI_MSK_INT 0x7428
+#define LDI_INT_CLR 0x742C
+#define LDI_WORK_MODE 0x7430
+#define LDI_HDMI_DSI_GT 0x7434
+
+/*
+ * ADE media bus service regs
+ */
+#define ADE0_QOSGENERATOR_MODE 0x010C
+#define QOSGENERATOR_MODE_MASK MASK(2)
+#define ADE0_QOSGENERATOR_EXTCONTROL 0x0118
+#define SOCKET_QOS_EN BIT(0)
+#define ADE1_QOSGENERATOR_MODE 0x020C
+#define ADE1_QOSGENERATOR_EXTCONTROL 0x0218
+
+/*
+ * ADE regs relevant enums
+ */
+enum frame_end_start {
+ /* regs take effect in every vsync */
+ REG_EFFECTIVE_IN_VSYNC = 0,
+ /* regs take effect in fist ade en and every frame end */
+ REG_EFFECTIVE_IN_ADEEN_FRMEND,
+ /* regs take effect in ade en immediately */
+ REG_EFFECTIVE_IN_ADEEN,
+ /* regs take effect in first vsync and every frame end */
+ REG_EFFECTIVE_IN_VSYNC_FRMEND
+};
+
+enum ade_fb_format {
+ ADE_RGB_565 = 0,
+ ADE_BGR_565,
+ ADE_XRGB_8888,
+ ADE_XBGR_8888,
+ ADE_ARGB_8888,
+ ADE_ABGR_8888,
+ ADE_RGBA_8888,
+ ADE_BGRA_8888,
+ ADE_RGB_888,
+ ADE_BGR_888 = 9,
+ ADE_FORMAT_UNSUPPORT = 800
+};
+
+enum ade_channel {
+ ADE_CH1 = 0, /* channel 1 for primary plane */
+ ADE_CH_NUM
+};
+
+enum ade_scale {
+ ADE_SCL1 = 0,
+ ADE_SCL2,
+ ADE_SCL3,
+ ADE_SCL_NUM
+};
+
+enum ade_ctran {
+ ADE_CTRAN1 = 0,
+ ADE_CTRAN2,
+ ADE_CTRAN3,
+ ADE_CTRAN4,
+ ADE_CTRAN5,
+ ADE_CTRAN6,
+ ADE_CTRAN_NUM
+};
+
+enum ade_overlay {
+ ADE_OVLY1 = 0,
+ ADE_OVLY2,
+ ADE_OVLY3,
+ ADE_OVLY_NUM
+};
+
+enum ade_alpha_mode {
+ ADE_ALP_GLOBAL = 0,
+ ADE_ALP_PIXEL,
+ ADE_ALP_PIXEL_AND_GLB
+};
+
+enum ade_alpha_blending_mode {
+ ADE_ALP_MUL_COEFF_0 = 0, /* alpha */
+ ADE_ALP_MUL_COEFF_1, /* 1-alpha */
+ ADE_ALP_MUL_COEFF_2, /* 0 */
+ ADE_ALP_MUL_COEFF_3 /* 1 */
+};
+
+/*
+ * LDI regs relevant enums
+ */
+enum dsi_pclk_en {
+ DSI_PCLK_ON = 0,
+ DSI_PCLK_OFF
+};
+
+enum ldi_output_format {
+ LDI_OUT_RGB_565 = 0,
+ LDI_OUT_RGB_666,
+ LDI_OUT_RGB_888
+};
+
+enum ldi_work_mode {
+ TEST_MODE = 0,
+ NORMAL_MODE
+};
+
+enum ldi_input_source {
+ DISP_SRC_NONE = 0,
+ DISP_SRC_OVLY2,
+ DISP_SRC_DISP,
+ DISP_SRC_ROT,
+ DISP_SRC_SCL2
+};
+
+/*
+ * ADE media bus service relevant enums
+ */
+enum qos_generator_mode {
+ FIXED_MODE = 0,
+ LIMITER_MODE,
+ BYPASS_MODE,
+ REGULATOR_MODE
+};
+
+/*
+ * Register Write/Read Helper functions
+ */
+static inline void ade_update_bits(void __iomem *addr, u32 bit_start,
+ u32 mask, u32 val)
+{
+ u32 tmp, orig;
+
+ orig = readl(addr);
+ tmp = orig & ~(mask << bit_start);
+ tmp |= (val & mask) << bit_start;
+ writel(tmp, addr);
+}
+
+#endif
diff --git a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
new file mode 100644
index 000000000000..fba6372d060e
--- /dev/null
+++ b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
@@ -0,0 +1,1057 @@
+/*
+ * Hisilicon Hi6220 SoC ADE(Advanced Display Engine)'s crtc&plane driver
+ *
+ * Copyright (c) 2016 Linaro Limited.
+ * Copyright (c) 2014-2016 Hisilicon Limited.
+ *
+ * Author:
+ * Xinliang Liu <z.liuxinliang@hisilicon.com>
+ * Xinliang Liu <xinliang.liu@linaro.org>
+ * Xinwei Kong <kong.kongxinwei@hisilicon.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/bitops.h>
+#include <linux/clk.h>
+#include <video/display_timing.h>
+#include <linux/mfd/syscon.h>
+#include <linux/regmap.h>
+#include <linux/reset.h>
+
+#include <drm/drmP.h>
+#include <drm/drm_crtc.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_atomic.h>
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_plane_helper.h>
+#include <drm/drm_gem_cma_helper.h>
+#include <drm/drm_fb_cma_helper.h>
+
+#include "kirin_drm_drv.h"
+#include "kirin_ade_reg.h"
+
+#define PRIMARY_CH ADE_CH1 /* primary plane */
+#define OUT_OVLY ADE_OVLY2 /* output overlay compositor */
+#define ADE_DEBUG 1
+
+#define to_ade_crtc(crtc) \
+ container_of(crtc, struct ade_crtc, base)
+
+#define to_ade_plane(plane) \
+ container_of(plane, struct ade_plane, base)
+
+struct ade_hw_ctx {
+ void __iomem *base;
+ struct regmap *noc_regmap;
+ struct clk *ade_core_clk;
+ struct clk *media_noc_clk;
+ struct clk *ade_pix_clk;
+ struct reset_control *reset;
+ bool power_on;
+ int irq;
+};
+
+struct ade_crtc {
+ struct drm_crtc base;
+ struct ade_hw_ctx *ctx;
+ bool enable;
+ u32 out_format;
+};
+
+struct ade_plane {
+ struct drm_plane base;
+ void *ctx;
+ u8 ch; /* channel */
+};
+
+struct ade_data {
+ struct ade_crtc acrtc;
+ struct ade_plane aplane[ADE_CH_NUM];
+ struct ade_hw_ctx ctx;
+};
+
+/* ade-format info: */
+struct ade_format {
+ u32 pixel_format;
+ enum ade_fb_format ade_format;
+};
+
+static const struct ade_format ade_formats[] = {
+ /* 16bpp RGB: */
+ { DRM_FORMAT_RGB565, ADE_RGB_565 },
+ { DRM_FORMAT_BGR565, ADE_BGR_565 },
+ /* 24bpp RGB: */
+ { DRM_FORMAT_RGB888, ADE_RGB_888 },
+ { DRM_FORMAT_BGR888, ADE_BGR_888 },
+ /* 32bpp [A]RGB: */
+ { DRM_FORMAT_XRGB8888, ADE_XRGB_8888 },
+ { DRM_FORMAT_XBGR8888, ADE_XBGR_8888 },
+ { DRM_FORMAT_RGBA8888, ADE_RGBA_8888 },
+ { DRM_FORMAT_BGRA8888, ADE_BGRA_8888 },
+ { DRM_FORMAT_ARGB8888, ADE_ARGB_8888 },
+ { DRM_FORMAT_ABGR8888, ADE_ABGR_8888 },
+};
+
+static const u32 channel_formats1[] = {
+ /* channel 1,2,3,4 */
+ DRM_FORMAT_RGB565, DRM_FORMAT_BGR565, DRM_FORMAT_RGB888,
+ DRM_FORMAT_BGR888, DRM_FORMAT_XRGB8888, DRM_FORMAT_XBGR8888,
+ DRM_FORMAT_RGBA8888, DRM_FORMAT_BGRA8888, DRM_FORMAT_ARGB8888,
+ DRM_FORMAT_ABGR8888
+};
+
+u32 ade_get_channel_formats(u8 ch, const u32 **formats)
+{
+ switch (ch) {
+ case ADE_CH1:
+ *formats = channel_formats1;
+ return ARRAY_SIZE(channel_formats1);
+ default:
+ DRM_ERROR("no this channel %d\n", ch);
+ *formats = NULL;
+ return 0;
+ }
+}
+
+/* convert from fourcc format to ade format */
+static u32 ade_get_format(u32 pixel_format)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(ade_formats); i++)
+ if (ade_formats[i].pixel_format == pixel_format)
+ return ade_formats[i].ade_format;
+
+ /* not found */
+ DRM_ERROR("Not found pixel format!!fourcc_format= %d\n",
+ pixel_format);
+ return ADE_FORMAT_UNSUPPORT;
+}
+
+static void ade_update_reload_bit(void __iomem *base, u32 bit_num, u32 val)
+{
+ u32 bit_ofst, reg_num;
+
+ bit_ofst = bit_num % 32;
+ reg_num = bit_num / 32;
+
+ ade_update_bits(base + ADE_RELOAD_DIS(reg_num), bit_ofst,
+ MASK(1), !!val);
+}
+
+static u32 ade_read_reload_bit(void __iomem *base, u32 bit_num)
+{
+ u32 tmp, bit_ofst, reg_num;
+
+ bit_ofst = bit_num % 32;
+ reg_num = bit_num / 32;
+
+ tmp = readl(base + ADE_RELOAD_DIS(reg_num));
+ return !!(BIT(bit_ofst) & tmp);
+}
+
+static void ade_init(struct ade_hw_ctx *ctx)
+{
+ void __iomem *base = ctx->base;
+
+ /* enable clk gate */
+ ade_update_bits(base + ADE_CTRL1, AUTO_CLK_GATE_EN_OFST,
+ AUTO_CLK_GATE_EN, ADE_ENABLE);
+ /* clear overlay */
+ writel(0, base + ADE_OVLY1_TRANS_CFG);
+ writel(0, base + ADE_OVLY_CTL);
+ writel(0, base + ADE_OVLYX_CTL(OUT_OVLY));
+ /* clear reset and reload regs */
+ writel(MASK(32), base + ADE_SOFT_RST_SEL(0));
+ writel(MASK(32), base + ADE_SOFT_RST_SEL(1));
+ writel(MASK(32), base + ADE_RELOAD_DIS(0));
+ writel(MASK(32), base + ADE_RELOAD_DIS(1));
+ /*
+ * for video mode, all the ade registers should
+ * become effective at frame end.
+ */
+ ade_update_bits(base + ADE_CTRL, FRM_END_START_OFST,
+ FRM_END_START_MASK, REG_EFFECTIVE_IN_ADEEN_FRMEND);
+}
+
+static void ade_set_pix_clk(struct ade_hw_ctx *ctx,
+ struct drm_display_mode *mode,
+ struct drm_display_mode *adj_mode)
+{
+ u32 clk_Hz = mode->clock * 1000;
+ int ret;
+
+ /*
+ * Success should be guaranteed in mode_valid call back,
+ * so failure shouldn't happen here
+ */
+ ret = clk_set_rate(ctx->ade_pix_clk, clk_Hz);
+ if (ret)
+ DRM_ERROR("failed to set pixel clk %dHz (%d)\n", clk_Hz, ret);
+ adj_mode->clock = clk_get_rate(ctx->ade_pix_clk) / 1000;
+}
+
+static void ade_ldi_set_mode(struct ade_crtc *acrtc,
+ struct drm_display_mode *mode,
+ struct drm_display_mode *adj_mode)
+{
+ struct ade_hw_ctx *ctx = acrtc->ctx;
+ void __iomem *base = ctx->base;
+ u32 width = mode->hdisplay;
+ u32 height = mode->vdisplay;
+ u32 hfp, hbp, hsw, vfp, vbp, vsw;
+ u32 plr_flags;
+
+ plr_flags = (mode->flags & DRM_MODE_FLAG_NVSYNC) ? FLAG_NVSYNC : 0;
+ plr_flags |= (mode->flags & DRM_MODE_FLAG_NHSYNC) ? FLAG_NHSYNC : 0;
+ hfp = mode->hsync_start - mode->hdisplay;
+ hbp = mode->htotal - mode->hsync_end;
+ hsw = mode->hsync_end - mode->hsync_start;
+ vfp = mode->vsync_start - mode->vdisplay;
+ vbp = mode->vtotal - mode->vsync_end;
+ vsw = mode->vsync_end - mode->vsync_start;
+ if (vsw > 15) {
+ DRM_DEBUG_DRIVER("vsw exceeded 15\n");
+ vsw = 15;
+ }
+
+ writel((hbp << HBP_OFST) | hfp, base + LDI_HRZ_CTRL0);
+ /* the configured value is actual value - 1 */
+ writel(hsw - 1, base + LDI_HRZ_CTRL1);
+ writel((vbp << VBP_OFST) | vfp, base + LDI_VRT_CTRL0);
+ /* the configured value is actual value - 1 */
+ writel(vsw - 1, base + LDI_VRT_CTRL1);
+ /* the configured value is actual value - 1 */
+ writel(((height - 1) << VSIZE_OFST) | (width - 1),
+ base + LDI_DSP_SIZE);
+ writel(plr_flags, base + LDI_PLR_CTRL);
+
+ /* set overlay compositor output size */
+ writel(((width - 1) << OUTPUT_XSIZE_OFST) | (height - 1),
+ base + ADE_OVLY_OUTPUT_SIZE(OUT_OVLY));
+
+ /* ctran6 setting */
+ writel(CTRAN_BYPASS_ON, base + ADE_CTRAN_DIS(ADE_CTRAN6));
+ /* the configured value is actual value - 1 */
+ writel(width * height - 1, base + ADE_CTRAN_IMAGE_SIZE(ADE_CTRAN6));
+ ade_update_reload_bit(base, CTRAN_OFST + ADE_CTRAN6, 0);
+
+ ade_set_pix_clk(ctx, mode, adj_mode);
+
+ DRM_DEBUG_DRIVER("set mode: %dx%d\n", width, height);
+}
+
+static int ade_power_up(struct ade_hw_ctx *ctx)
+{
+ int ret;
+
+ ret = clk_prepare_enable(ctx->media_noc_clk);
+ if (ret) {
+ DRM_ERROR("failed to enable media_noc_clk (%d)\n", ret);
+ return ret;
+ }
+
+ ret = reset_control_deassert(ctx->reset);
+ if (ret) {
+ DRM_ERROR("failed to deassert reset\n");
+ return ret;
+ }
+
+ ret = clk_prepare_enable(ctx->ade_core_clk);
+ if (ret) {
+ DRM_ERROR("failed to enable ade_core_clk (%d)\n", ret);
+ return ret;
+ }
+
+ ade_init(ctx);
+ ctx->power_on = true;
+ return 0;
+}
+
+static void ade_power_down(struct ade_hw_ctx *ctx)
+{
+ void __iomem *base = ctx->base;
+
+ writel(ADE_DISABLE, base + LDI_CTRL);
+ /* dsi pixel off */
+ writel(DSI_PCLK_OFF, base + LDI_HDMI_DSI_GT);
+
+ clk_disable_unprepare(ctx->ade_core_clk);
+ reset_control_assert(ctx->reset);
+ clk_disable_unprepare(ctx->media_noc_clk);
+ ctx->power_on = false;
+}
+
+static void ade_set_medianoc_qos(struct ade_crtc *acrtc)
+{
+ struct ade_hw_ctx *ctx = acrtc->ctx;
+ struct regmap *map = ctx->noc_regmap;
+
+ regmap_update_bits(map, ADE0_QOSGENERATOR_MODE,
+ QOSGENERATOR_MODE_MASK, BYPASS_MODE);
+ regmap_update_bits(map, ADE0_QOSGENERATOR_EXTCONTROL,
+ SOCKET_QOS_EN, SOCKET_QOS_EN);
+
+ regmap_update_bits(map, ADE1_QOSGENERATOR_MODE,
+ QOSGENERATOR_MODE_MASK, BYPASS_MODE);
+ regmap_update_bits(map, ADE1_QOSGENERATOR_EXTCONTROL,
+ SOCKET_QOS_EN, SOCKET_QOS_EN);
+}
+
+static int ade_enable_vblank(struct drm_device *dev, unsigned int pipe)
+{
+ struct kirin_drm_private *priv = dev->dev_private;
+ struct ade_crtc *acrtc = to_ade_crtc(priv->crtc[pipe]);
+ struct ade_hw_ctx *ctx = acrtc->ctx;
+ void __iomem *base = ctx->base;
+
+ if (!ctx->power_on)
+ (void)ade_power_up(ctx);
+
+ ade_update_bits(base + LDI_INT_EN, FRAME_END_INT_EN_OFST,
+ MASK(1), 1);
+
+ return 0;
+}
+
+static void ade_disable_vblank(struct drm_device *dev, unsigned int pipe)
+{
+ struct kirin_drm_private *priv = dev->dev_private;
+ struct ade_crtc *acrtc = to_ade_crtc(priv->crtc[pipe]);
+ struct ade_hw_ctx *ctx = acrtc->ctx;
+ void __iomem *base = ctx->base;
+
+ if (!ctx->power_on) {
+ DRM_ERROR("power is down! vblank disable fail\n");
+ return;
+ }
+
+ ade_update_bits(base + LDI_INT_EN, FRAME_END_INT_EN_OFST,
+ MASK(1), 0);
+}
+
+static irqreturn_t ade_irq_handler(int irq, void *data)
+{
+ struct ade_crtc *acrtc = data;
+ struct ade_hw_ctx *ctx = acrtc->ctx;
+ struct drm_crtc *crtc = &acrtc->base;
+ void __iomem *base = ctx->base;
+ u32 status;
+
+ status = readl(base + LDI_MSK_INT);
+ DRM_DEBUG_VBL("LDI IRQ: status=0x%X\n", status);
+
+ /* vblank irq */
+ if (status & BIT(FRAME_END_INT_EN_OFST)) {
+ ade_update_bits(base + LDI_INT_CLR, FRAME_END_INT_EN_OFST,
+ MASK(1), 1);
+ drm_crtc_handle_vblank(crtc);
+ }
+
+ return IRQ_HANDLED;
+}
+
+static void ade_display_enable(struct ade_crtc *acrtc)
+{
+ struct ade_hw_ctx *ctx = acrtc->ctx;
+ void __iomem *base = ctx->base;
+ u32 out_fmt = acrtc->out_format;
+
+ /* enable output overlay compositor */
+ writel(ADE_ENABLE, base + ADE_OVLYX_CTL(OUT_OVLY));
+ ade_update_reload_bit(base, OVLY_OFST + OUT_OVLY, 0);
+
+ /* display source setting */
+ writel(DISP_SRC_OVLY2, base + ADE_DISP_SRC_CFG);
+
+ /* enable ade */
+ writel(ADE_ENABLE, base + ADE_EN);
+ /* enable ldi */
+ writel(NORMAL_MODE, base + LDI_WORK_MODE);
+ writel((out_fmt << BPP_OFST) | DATA_GATE_EN | LDI_EN,
+ base + LDI_CTRL);
+ /* dsi pixel on */
+ writel(DSI_PCLK_ON, base + LDI_HDMI_DSI_GT);
+}
+
+#if ADE_DEBUG
+static void ade_rdma_dump_regs(void __iomem *base, u32 ch)
+{
+ u32 reg_ctrl, reg_addr, reg_size, reg_stride, reg_space, reg_en;
+ u32 val;
+
+ reg_ctrl = RD_CH_CTRL(ch);
+ reg_addr = RD_CH_ADDR(ch);
+ reg_size = RD_CH_SIZE(ch);
+ reg_stride = RD_CH_STRIDE(ch);
+ reg_space = RD_CH_SPACE(ch);
+ reg_en = RD_CH_EN(ch);
+
+ val = ade_read_reload_bit(base, RDMA_OFST + ch);
+ DRM_DEBUG_DRIVER("[rdma%d]: reload(%d)\n", ch + 1, val);
+ val = readl(base + reg_ctrl);
+ DRM_DEBUG_DRIVER("[rdma%d]: reg_ctrl(0x%08x)\n", ch + 1, val);
+ val = readl(base + reg_addr);
+ DRM_DEBUG_DRIVER("[rdma%d]: reg_addr(0x%08x)\n", ch + 1, val);
+ val = readl(base + reg_size);
+ DRM_DEBUG_DRIVER("[rdma%d]: reg_size(0x%08x)\n", ch + 1, val);
+ val = readl(base + reg_stride);
+ DRM_DEBUG_DRIVER("[rdma%d]: reg_stride(0x%08x)\n", ch + 1, val);
+ val = readl(base + reg_space);
+ DRM_DEBUG_DRIVER("[rdma%d]: reg_space(0x%08x)\n", ch + 1, val);
+ val = readl(base + reg_en);
+ DRM_DEBUG_DRIVER("[rdma%d]: reg_en(0x%08x)\n", ch + 1, val);
+}
+
+static void ade_clip_dump_regs(void __iomem *base, u32 ch)
+{
+ u32 val;
+
+ val = ade_read_reload_bit(base, CLIP_OFST + ch);
+ DRM_DEBUG_DRIVER("[clip%d]: reload(%d)\n", ch + 1, val);
+ val = readl(base + ADE_CLIP_DISABLE(ch));
+ DRM_DEBUG_DRIVER("[clip%d]: reg_clip_disable(0x%08x)\n", ch + 1, val);
+ val = readl(base + ADE_CLIP_SIZE0(ch));
+ DRM_DEBUG_DRIVER("[clip%d]: reg_clip_size0(0x%08x)\n", ch + 1, val);
+ val = readl(base + ADE_CLIP_SIZE1(ch));
+ DRM_DEBUG_DRIVER("[clip%d]: reg_clip_size1(0x%08x)\n", ch + 1, val);
+}
+
+static void ade_compositor_routing_dump_regs(void __iomem *base, u32 ch)
+{
+ u8 ovly_ch = 0; /* TODO: Only primary plane now */
+ u32 val;
+
+ val = readl(base + ADE_OVLY_CH_XY0(ovly_ch));
+ DRM_DEBUG_DRIVER("[overlay ch%d]: reg_ch_xy0(0x%08x)\n", ovly_ch, val);
+ val = readl(base + ADE_OVLY_CH_XY1(ovly_ch));
+ DRM_DEBUG_DRIVER("[overlay ch%d]: reg_ch_xy1(0x%08x)\n", ovly_ch, val);
+ val = readl(base + ADE_OVLY_CH_CTL(ovly_ch));
+ DRM_DEBUG_DRIVER("[overlay ch%d]: reg_ch_ctl(0x%08x)\n", ovly_ch, val);
+}
+
+static void ade_dump_overlay_compositor_regs(void __iomem *base, u32 comp)
+{
+ u32 val;
+
+ val = ade_read_reload_bit(base, OVLY_OFST + comp);
+ DRM_DEBUG_DRIVER("[overlay%d]: reload(%d)\n", comp + 1, val);
+ writel(ADE_ENABLE, base + ADE_OVLYX_CTL(comp));
+ DRM_DEBUG_DRIVER("[overlay%d]: reg_ctl(0x%08x)\n", comp + 1, val);
+ val = readl(base + ADE_OVLY_CTL);
+ DRM_DEBUG_DRIVER("ovly_ctl(0x%08x)\n", val);
+}
+
+static void ade_dump_regs(void __iomem *base)
+{
+ u32 i;
+
+ /* dump channel regs */
+ for (i = 0; i < ADE_CH_NUM; i++) {
+ /* dump rdma regs */
+ ade_rdma_dump_regs(base, i);
+
+ /* dump clip regs */
+ ade_clip_dump_regs(base, i);
+
+ /* dump compositor routing regs */
+ ade_compositor_routing_dump_regs(base, i);
+ }
+
+ /* dump overlay compositor regs */
+ ade_dump_overlay_compositor_regs(base, OUT_OVLY);
+}
+#else
+static void ade_dump_regs(void __iomem *base) { }
+#endif
+
+static void ade_crtc_enable(struct drm_crtc *crtc)
+{
+ struct ade_crtc *acrtc = to_ade_crtc(crtc);
+ struct ade_hw_ctx *ctx = acrtc->ctx;
+ int ret;
+
+ if (acrtc->enable)
+ return;
+
+ if (!ctx->power_on) {
+ ret = ade_power_up(ctx);
+ if (ret)
+ return;
+ }
+
+ ade_set_medianoc_qos(acrtc);
+ ade_display_enable(acrtc);
+ ade_dump_regs(ctx->base);
+ acrtc->enable = true;
+}
+
+static void ade_crtc_disable(struct drm_crtc *crtc)
+{
+ struct ade_crtc *acrtc = to_ade_crtc(crtc);
+ struct ade_hw_ctx *ctx = acrtc->ctx;
+
+ if (!acrtc->enable)
+ return;
+
+ ade_power_down(ctx);
+ acrtc->enable = false;
+}
+
+static int ade_crtc_atomic_check(struct drm_crtc *crtc,
+ struct drm_crtc_state *state)
+{
+ /* do nothing */
+ return 0;
+}
+
+static void ade_crtc_mode_set_nofb(struct drm_crtc *crtc)
+{
+ struct ade_crtc *acrtc = to_ade_crtc(crtc);
+ struct ade_hw_ctx *ctx = acrtc->ctx;
+ struct drm_display_mode *mode = &crtc->state->mode;
+ struct drm_display_mode *adj_mode = &crtc->state->adjusted_mode;
+
+ if (!ctx->power_on)
+ (void)ade_power_up(ctx);
+ ade_ldi_set_mode(acrtc, mode, adj_mode);
+}
+
+static void ade_crtc_atomic_begin(struct drm_crtc *crtc,
+ struct drm_crtc_state *old_state)
+{
+ struct ade_crtc *acrtc = to_ade_crtc(crtc);
+ struct ade_hw_ctx *ctx = acrtc->ctx;
+
+ if (!ctx->power_on)
+ (void)ade_power_up(ctx);
+}
+
+static void ade_crtc_atomic_flush(struct drm_crtc *crtc,
+ struct drm_crtc_state *old_state)
+
+{
+ struct ade_crtc *acrtc = to_ade_crtc(crtc);
+ struct ade_hw_ctx *ctx = acrtc->ctx;
+ void __iomem *base = ctx->base;
+
+ /* only crtc is enabled regs take effect */
+ if (acrtc->enable) {
+ ade_dump_regs(base);
+ /* flush ade registers */
+ writel(ADE_ENABLE, base + ADE_EN);
+ }
+}
+
+static const struct drm_crtc_helper_funcs ade_crtc_helper_funcs = {
+ .enable = ade_crtc_enable,
+ .disable = ade_crtc_disable,
+ .atomic_check = ade_crtc_atomic_check,
+ .mode_set_nofb = ade_crtc_mode_set_nofb,
+ .atomic_begin = ade_crtc_atomic_begin,
+ .atomic_flush = ade_crtc_atomic_flush,
+};
+
+static const struct drm_crtc_funcs ade_crtc_funcs = {
+ .destroy = drm_crtc_cleanup,
+ .set_config = drm_atomic_helper_set_config,
+ .page_flip = drm_atomic_helper_page_flip,
+ .reset = drm_atomic_helper_crtc_reset,
+ .set_property = drm_atomic_helper_crtc_set_property,
+ .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
+ .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
+};
+
+static int ade_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
+ struct drm_plane *plane)
+{
+ struct kirin_drm_private *priv = dev->dev_private;
+ struct device_node *port;
+ int ret;
+
+ /* set crtc port so that
+ * drm_of_find_possible_crtcs call works
+ */
+ port = of_get_child_by_name(dev->dev->of_node, "port");
+ if (!port) {
+ DRM_ERROR("no port node found in %s\n",
+ dev->dev->of_node->full_name);
+ return -EINVAL;
+ }
+ of_node_put(port);
+ crtc->port = port;
+
+ ret = drm_crtc_init_with_planes(dev, crtc, plane, NULL,
+ &ade_crtc_funcs, NULL);
+ if (ret) {
+ DRM_ERROR("failed to init crtc.\n");
+ return ret;
+ }
+
+ drm_crtc_helper_add(crtc, &ade_crtc_helper_funcs);
+ priv->crtc[drm_crtc_index(crtc)] = crtc;
+
+ return 0;
+}
+
+static void ade_rdma_set(void __iomem *base, struct drm_framebuffer *fb,
+ u32 ch, u32 y, u32 in_h, u32 fmt)
+{
+ struct drm_gem_cma_object *obj = drm_fb_cma_get_gem_obj(fb, 0);
+ u32 reg_ctrl, reg_addr, reg_size, reg_stride, reg_space, reg_en;
+ u32 stride = fb->pitches[0];
+ u32 addr = (u32)obj->paddr + y * stride;
+
+ DRM_DEBUG_DRIVER("rdma%d: (y=%d, height=%d), stride=%d, paddr=0x%x\n",
+ ch + 1, y, in_h, stride, (u32)obj->paddr);
+ DRM_DEBUG_DRIVER("addr=0x%x, fb:%dx%d, pixel_format=%d(%s)\n",
+ addr, fb->width, fb->height, fmt,
+ drm_get_format_name(fb->pixel_format));
+
+ /* get reg offset */
+ reg_ctrl = RD_CH_CTRL(ch);
+ reg_addr = RD_CH_ADDR(ch);
+ reg_size = RD_CH_SIZE(ch);
+ reg_stride = RD_CH_STRIDE(ch);
+ reg_space = RD_CH_SPACE(ch);
+ reg_en = RD_CH_EN(ch);
+
+ /*
+ * TODO: set rotation
+ */
+ writel((fmt << 16) & 0x1f0000, base + reg_ctrl);
+ writel(addr, base + reg_addr);
+ writel((in_h << 16) | stride, base + reg_size);
+ writel(stride, base + reg_stride);
+ writel(in_h * stride, base + reg_space);
+ writel(ADE_ENABLE, base + reg_en);
+ ade_update_reload_bit(base, RDMA_OFST + ch, 0);
+}
+
+static void ade_rdma_disable(void __iomem *base, u32 ch)
+{
+ u32 reg_en;
+
+ /* get reg offset */
+ reg_en = RD_CH_EN(ch);
+ writel(0, base + reg_en);
+ ade_update_reload_bit(base, RDMA_OFST + ch, 1);
+}
+
+static void ade_clip_set(void __iomem *base, u32 ch, u32 fb_w, u32 x,
+ u32 in_w, u32 in_h)
+{
+ u32 disable_val;
+ u32 clip_left;
+ u32 clip_right;
+
+ /*
+ * clip width, no need to clip height
+ */
+ if (fb_w == in_w) { /* bypass */
+ disable_val = 1;
+ clip_left = 0;
+ clip_right = 0;
+ } else {
+ disable_val = 0;
+ clip_left = x;
+ clip_right = fb_w - (x + in_w) - 1;
+ }
+
+ DRM_DEBUG_DRIVER("clip%d: clip_left=%d, clip_right=%d\n",
+ ch + 1, clip_left, clip_right);
+
+ writel(disable_val, base + ADE_CLIP_DISABLE(ch));
+ writel((fb_w - 1) << 16 | (in_h - 1), base + ADE_CLIP_SIZE0(ch));
+ writel(clip_left << 16 | clip_right, base + ADE_CLIP_SIZE1(ch));
+ ade_update_reload_bit(base, CLIP_OFST + ch, 0);
+}
+
+static void ade_clip_disable(void __iomem *base, u32 ch)
+{
+ writel(1, base + ADE_CLIP_DISABLE(ch));
+ ade_update_reload_bit(base, CLIP_OFST + ch, 1);
+}
+
+static bool has_Alpha_channel(int format)
+{
+ switch (format) {
+ case ADE_ARGB_8888:
+ case ADE_ABGR_8888:
+ case ADE_RGBA_8888:
+ case ADE_BGRA_8888:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static void ade_get_blending_params(u32 fmt, u8 glb_alpha, u8 *alp_mode,
+ u8 *alp_sel, u8 *under_alp_sel)
+{
+ bool has_alpha = has_Alpha_channel(fmt);
+
+ /*
+ * get alp_mode
+ */
+ if (has_alpha && glb_alpha < 255)
+ *alp_mode = ADE_ALP_PIXEL_AND_GLB;
+ else if (has_alpha)
+ *alp_mode = ADE_ALP_PIXEL;
+ else
+ *alp_mode = ADE_ALP_GLOBAL;
+
+ /*
+ * get alp sel
+ */
+ *alp_sel = ADE_ALP_MUL_COEFF_3; /* 1 */
+ *under_alp_sel = ADE_ALP_MUL_COEFF_2; /* 0 */
+}
+
+static void ade_compositor_routing_set(void __iomem *base, u8 ch,
+ u32 x0, u32 y0,
+ u32 in_w, u32 in_h, u32 fmt)
+{
+ u8 ovly_ch = 0; /* TODO: This is the zpos, only one plane now */
+ u8 glb_alpha = 255;
+ u32 x1 = x0 + in_w - 1;
+ u32 y1 = y0 + in_h - 1;
+ u32 val;
+ u8 alp_sel;
+ u8 under_alp_sel;
+ u8 alp_mode;
+
+ ade_get_blending_params(fmt, glb_alpha, &alp_mode, &alp_sel,
+ &under_alp_sel);
+
+ /* overlay routing setting
+ */
+ writel(x0 << 16 | y0, base + ADE_OVLY_CH_XY0(ovly_ch));
+ writel(x1 << 16 | y1, base + ADE_OVLY_CH_XY1(ovly_ch));
+ val = (ch + 1) << CH_SEL_OFST | BIT(CH_EN_OFST) |
+ alp_sel << CH_ALP_SEL_OFST |
+ under_alp_sel << CH_UNDER_ALP_SEL_OFST |
+ glb_alpha << CH_ALP_GBL_OFST |
+ alp_mode << CH_ALP_MODE_OFST;
+ writel(val, base + ADE_OVLY_CH_CTL(ovly_ch));
+ /* connect this plane/channel to overlay2 compositor */
+ ade_update_bits(base + ADE_OVLY_CTL, CH_OVLY_SEL_OFST(ovly_ch),
+ CH_OVLY_SEL_MASK, CH_OVLY_SEL_VAL(OUT_OVLY));
+}
+
+static void ade_compositor_routing_disable(void __iomem *base, u32 ch)
+{
+ u8 ovly_ch = 0; /* TODO: Only primary plane now */
+
+ /* disable this plane/channel */
+ ade_update_bits(base + ADE_OVLY_CH_CTL(ovly_ch), CH_EN_OFST,
+ MASK(1), 0);
+ /* dis-connect this plane/channel of overlay2 compositor */
+ ade_update_bits(base + ADE_OVLY_CTL, CH_OVLY_SEL_OFST(ovly_ch),
+ CH_OVLY_SEL_MASK, 0);
+}
+
+/*
+ * Typicaly, a channel looks like: DMA-->clip-->scale-->ctrans-->compositor
+ */
+static void ade_update_channel(struct ade_plane *aplane,
+ struct drm_framebuffer *fb, int crtc_x,
+ int crtc_y, unsigned int crtc_w,
+ unsigned int crtc_h, u32 src_x,
+ u32 src_y, u32 src_w, u32 src_h)
+{
+ struct ade_hw_ctx *ctx = aplane->ctx;
+ void __iomem *base = ctx->base;
+ u32 fmt = ade_get_format(fb->pixel_format);
+ u32 ch = aplane->ch;
+ u32 in_w;
+ u32 in_h;
+
+ DRM_DEBUG_DRIVER("channel%d: src:(%d, %d)-%dx%d, crtc:(%d, %d)-%dx%d",
+ ch + 1, src_x, src_y, src_w, src_h,
+ crtc_x, crtc_y, crtc_w, crtc_h);
+
+ /* 1) DMA setting */
+ in_w = src_w;
+ in_h = src_h;
+ ade_rdma_set(base, fb, ch, src_y, in_h, fmt);
+
+ /* 2) clip setting */
+ ade_clip_set(base, ch, fb->width, src_x, in_w, in_h);
+
+ /* 3) TODO: scale setting for overlay planes */
+
+ /* 4) TODO: ctran/csc setting for overlay planes */
+
+ /* 5) compositor routing setting */
+ ade_compositor_routing_set(base, ch, crtc_x, crtc_y, in_w, in_h, fmt);
+}
+
+static void ade_disable_channel(struct ade_plane *aplane)
+{
+ struct ade_hw_ctx *ctx = aplane->ctx;
+ void __iomem *base = ctx->base;
+ u32 ch = aplane->ch;
+
+ DRM_DEBUG_DRIVER("disable channel%d\n", ch + 1);
+
+ /* disable read DMA */
+ ade_rdma_disable(base, ch);
+
+ /* disable clip */
+ ade_clip_disable(base, ch);
+
+ /* disable compositor routing */
+ ade_compositor_routing_disable(base, ch);
+}
+
+static int ade_plane_prepare_fb(struct drm_plane *plane,
+ const struct drm_plane_state *new_state)
+{
+ /* do nothing */
+ return 0;
+}
+
+static void ade_plane_cleanup_fb(struct drm_plane *plane,
+ const struct drm_plane_state *old_state)
+{
+ /* do nothing */
+}
+
+static int ade_plane_atomic_check(struct drm_plane *plane,
+ struct drm_plane_state *state)
+{
+ struct drm_framebuffer *fb = state->fb;
+ struct drm_crtc *crtc = state->crtc;
+ struct drm_crtc_state *crtc_state;
+ u32 src_x = state->src_x >> 16;
+ u32 src_y = state->src_y >> 16;
+ u32 src_w = state->src_w >> 16;
+ u32 src_h = state->src_h >> 16;
+ int crtc_x = state->crtc_x;
+ int crtc_y = state->crtc_y;
+ u32 crtc_w = state->crtc_w;
+ u32 crtc_h = state->crtc_h;
+ u32 fmt;
+
+ if (!crtc || !fb)
+ return 0;
+
+ fmt = ade_get_format(fb->pixel_format);
+ if (fmt == ADE_FORMAT_UNSUPPORT)
+ return -EINVAL;
+
+ crtc_state = drm_atomic_get_crtc_state(state->state, crtc);
+ if (IS_ERR(crtc_state))
+ return PTR_ERR(crtc_state);
+
+ if (src_w != crtc_w || src_h != crtc_h) {
+ DRM_ERROR("Scale not support!!!\n");
+ return -EINVAL;
+ }
+
+ if (src_x + src_w > fb->width ||
+ src_y + src_h > fb->height)
+ return -EINVAL;
+
+ if (crtc_x < 0 || crtc_y < 0)
+ return -EINVAL;
+
+ if (crtc_x + crtc_w > crtc_state->adjusted_mode.hdisplay ||
+ crtc_y + crtc_h > crtc_state->adjusted_mode.vdisplay)
+ return -EINVAL;
+
+ return 0;
+}
+
+static void ade_plane_atomic_update(struct drm_plane *plane,
+ struct drm_plane_state *old_state)
+{
+ struct drm_plane_state *state = plane->state;
+ struct ade_plane *aplane = to_ade_plane(plane);
+
+ ade_update_channel(aplane, state->fb, state->crtc_x, state->crtc_y,
+ state->crtc_w, state->crtc_h,
+ state->src_x >> 16, state->src_y >> 16,
+ state->src_w >> 16, state->src_h >> 16);
+}
+
+static void ade_plane_atomic_disable(struct drm_plane *plane,
+ struct drm_plane_state *old_state)
+{
+ struct ade_plane *aplane = to_ade_plane(plane);
+
+ ade_disable_channel(aplane);
+}
+
+static const struct drm_plane_helper_funcs ade_plane_helper_funcs = {
+ .prepare_fb = ade_plane_prepare_fb,
+ .cleanup_fb = ade_plane_cleanup_fb,
+ .atomic_check = ade_plane_atomic_check,
+ .atomic_update = ade_plane_atomic_update,
+ .atomic_disable = ade_plane_atomic_disable,
+};
+
+static struct drm_plane_funcs ade_plane_funcs = {
+ .update_plane = drm_atomic_helper_update_plane,
+ .disable_plane = drm_atomic_helper_disable_plane,
+ .set_property = drm_atomic_helper_plane_set_property,
+ .destroy = drm_plane_cleanup,
+ .reset = drm_atomic_helper_plane_reset,
+ .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
+ .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
+};
+
+static int ade_plane_init(struct drm_device *dev, struct ade_plane *aplane,
+ enum drm_plane_type type)
+{
+ const u32 *fmts;
+ u32 fmts_cnt;
+ int ret = 0;
+
+ /* get properties */
+ fmts_cnt = ade_get_channel_formats(aplane->ch, &fmts);
+ if (ret)
+ return ret;
+
+ ret = drm_universal_plane_init(dev, &aplane->base, 1, &ade_plane_funcs,
+ fmts, fmts_cnt, type, NULL);
+ if (ret) {
+ DRM_ERROR("fail to init plane, ch=%d\n", aplane->ch);
+ return ret;
+ }
+
+ drm_plane_helper_add(&aplane->base, &ade_plane_helper_funcs);
+
+ return 0;
+}
+
+static int ade_dts_parse(struct platform_device *pdev, struct ade_hw_ctx *ctx)
+{
+ struct resource *res;
+ struct device *dev = &pdev->dev;
+ struct device_node *np = pdev->dev.of_node;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ ctx->base = devm_ioremap_resource(dev, res);
+ if (IS_ERR(ctx->base)) {
+ DRM_ERROR("failed to remap ade io base\n");
+ return PTR_ERR(ctx->base);
+ }
+
+ ctx->reset = devm_reset_control_get(dev, NULL);
+ if (IS_ERR(ctx->reset))
+ return PTR_ERR(ctx->reset);
+
+ ctx->noc_regmap =
+ syscon_regmap_lookup_by_phandle(np, "hisilicon,noc-syscon");
+ if (IS_ERR(ctx->noc_regmap)) {
+ DRM_ERROR("failed to get noc regmap\n");
+ return PTR_ERR(ctx->noc_regmap);
+ }
+
+ ctx->irq = platform_get_irq(pdev, 0);
+ if (ctx->irq < 0) {
+ DRM_ERROR("failed to get irq\n");
+ return -ENODEV;
+ }
+
+ ctx->ade_core_clk = devm_clk_get(dev, "clk_ade_core");
+ if (!ctx->ade_core_clk) {
+ DRM_ERROR("failed to parse clk ADE_CORE\n");
+ return -ENODEV;
+ }
+
+ ctx->media_noc_clk = devm_clk_get(dev, "clk_codec_jpeg");
+ if (!ctx->media_noc_clk) {
+ DRM_ERROR("failed to parse clk CODEC_JPEG\n");
+ return -ENODEV;
+ }
+
+ ctx->ade_pix_clk = devm_clk_get(dev, "clk_ade_pix");
+ if (!ctx->ade_pix_clk) {
+ DRM_ERROR("failed to parse clk ADE_PIX\n");
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
+static int ade_drm_init(struct drm_device *dev)
+{
+ struct platform_device *pdev = dev->platformdev;
+ struct ade_data *ade;
+ struct ade_hw_ctx *ctx;
+ struct ade_crtc *acrtc;
+ struct ade_plane *aplane;
+ enum drm_plane_type type;
+ int ret;
+ int i;
+
+ ade = devm_kzalloc(dev->dev, sizeof(*ade), GFP_KERNEL);
+ if (!ade) {
+ DRM_ERROR("failed to alloc ade_data\n");
+ return -ENOMEM;
+ }
+ platform_set_drvdata(pdev, ade);
+
+ ctx = &ade->ctx;
+ acrtc = &ade->acrtc;
+ acrtc->ctx = ctx;
+ acrtc->out_format = LDI_OUT_RGB_888;
+
+ ret = ade_dts_parse(pdev, ctx);
+ if (ret)
+ return ret;
+
+ /*
+ * plane init
+ * TODO: Now only support primary plane, overlay planes
+ * need to do.
+ */
+ for (i = 0; i < ADE_CH_NUM; i++) {
+ aplane = &ade->aplane[i];
+ aplane->ch = i;
+ aplane->ctx = ctx;
+ type = i == PRIMARY_CH ? DRM_PLANE_TYPE_PRIMARY :
+ DRM_PLANE_TYPE_OVERLAY;
+
+ ret = ade_plane_init(dev, aplane, type);
+ if (ret)
+ return ret;
+ }
+
+ /* crtc init */
+ ret = ade_crtc_init(dev, &acrtc->base, &ade->aplane[PRIMARY_CH].base);
+ if (ret)
+ return ret;
+
+ /* vblank irq init */
+ ret = devm_request_irq(dev->dev, ctx->irq, ade_irq_handler,
+ IRQF_SHARED, dev->driver->name, acrtc);
+ if (ret)
+ return ret;
+ dev->driver->get_vblank_counter = drm_vblank_no_hw_counter;
+ dev->driver->enable_vblank = ade_enable_vblank;
+ dev->driver->disable_vblank = ade_disable_vblank;
+
+ return 0;
+}
+
+static void ade_drm_cleanup(struct drm_device *dev)
+{
+ struct platform_device *pdev = dev->platformdev;
+ struct ade_data *ade = platform_get_drvdata(pdev);
+ struct drm_crtc *crtc = &ade->acrtc.base;
+
+ drm_crtc_cleanup(crtc);
+}
+
+const struct kirin_dc_ops ade_dc_ops = {
+ .init = ade_drm_init,
+ .cleanup = ade_drm_cleanup
+};
diff --git a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c
new file mode 100644
index 000000000000..e102c9e1e7b2
--- /dev/null
+++ b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c
@@ -0,0 +1,367 @@
+/*
+ * Hisilicon Kirin SoCs drm master driver
+ *
+ * Copyright (c) 2016 Linaro Limited.
+ * Copyright (c) 2014-2016 Hisilicon Limited.
+ *
+ * Author:
+ * Xinliang Liu <z.liuxinliang@hisilicon.com>
+ * Xinliang Liu <xinliang.liu@linaro.org>
+ * Xinwei Kong <kong.kongxinwei@hisilicon.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/of_platform.h>
+#include <linux/component.h>
+#include <linux/of_graph.h>
+
+#include <drm/drmP.h>
+#include <drm/drm_gem_cma_helper.h>
+#include <drm/drm_fb_cma_helper.h>
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_crtc_helper.h>
+
+#include "kirin_drm_drv.h"
+
+static struct kirin_dc_ops *dc_ops;
+
+static int kirin_drm_kms_cleanup(struct drm_device *dev)
+{
+ struct kirin_drm_private *priv = dev->dev_private;
+
+#ifdef CONFIG_DRM_FBDEV_EMULATION
+ if (priv->fbdev) {
+ drm_fbdev_cma_fini(priv->fbdev);
+ priv->fbdev = NULL;
+ }
+#endif
+ drm_kms_helper_poll_fini(dev);
+ drm_vblank_cleanup(dev);
+ dc_ops->cleanup(dev);
+ drm_mode_config_cleanup(dev);
+ devm_kfree(dev->dev, priv);
+ dev->dev_private = NULL;
+
+ return 0;
+}
+
+#ifdef CONFIG_DRM_FBDEV_EMULATION
+static void kirin_fbdev_output_poll_changed(struct drm_device *dev)
+{
+ struct kirin_drm_private *priv = dev->dev_private;
+
+ if (priv->fbdev) {
+ drm_fbdev_cma_hotplug_event(priv->fbdev);
+ } else {
+ priv->fbdev = drm_fbdev_cma_init(dev, 32,
+ dev->mode_config.num_crtc,
+ dev->mode_config.num_connector);
+ if (IS_ERR(priv->fbdev))
+ priv->fbdev = NULL;
+ }
+}
+#endif
+
+static const struct drm_mode_config_funcs kirin_drm_mode_config_funcs = {
+ .fb_create = drm_fb_cma_create,
+#ifdef CONFIG_DRM_FBDEV_EMULATION
+ .output_poll_changed = kirin_fbdev_output_poll_changed,
+#endif
+ .atomic_check = drm_atomic_helper_check,
+ .atomic_commit = drm_atomic_helper_commit,
+};
+
+static void kirin_drm_mode_config_init(struct drm_device *dev)
+{
+ dev->mode_config.min_width = 0;
+ dev->mode_config.min_height = 0;
+
+ dev->mode_config.max_width = 2048;
+ dev->mode_config.max_height = 2048;
+
+ dev->mode_config.funcs = &kirin_drm_mode_config_funcs;
+}
+
+static int kirin_drm_kms_init(struct drm_device *dev)
+{
+ struct kirin_drm_private *priv;
+ int ret;
+
+ priv = devm_kzalloc(dev->dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ dev->dev_private = priv;
+ dev_set_drvdata(dev->dev, dev);
+
+ /* dev->mode_config initialization */
+ drm_mode_config_init(dev);
+ kirin_drm_mode_config_init(dev);
+
+ /* display controller init */
+ ret = dc_ops->init(dev);
+ if (ret)
+ goto err_mode_config_cleanup;
+
+ /* bind and init sub drivers */
+ ret = component_bind_all(dev->dev, dev);
+ if (ret) {
+ DRM_ERROR("failed to bind all component.\n");
+ goto err_dc_cleanup;
+ }
+
+ /* vblank init */
+ ret = drm_vblank_init(dev, dev->mode_config.num_crtc);
+ if (ret) {
+ DRM_ERROR("failed to initialize vblank.\n");
+ goto err_unbind_all;
+ }
+ /* with irq_enabled = true, we can use the vblank feature. */
+ dev->irq_enabled = true;
+
+ /* reset all the states of crtc/plane/encoder/connector */
+ drm_mode_config_reset(dev);
+
+ /* init kms poll for handling hpd */
+ drm_kms_helper_poll_init(dev);
+
+ /* force detection after connectors init */
+ (void)drm_helper_hpd_irq_event(dev);
+
+ return 0;
+
+err_unbind_all:
+ component_unbind_all(dev->dev, dev);
+err_dc_cleanup:
+ dc_ops->cleanup(dev);
+err_mode_config_cleanup:
+ drm_mode_config_cleanup(dev);
+ devm_kfree(dev->dev, priv);
+ dev->dev_private = NULL;
+
+ return ret;
+}
+
+static const struct file_operations kirin_drm_fops = {
+ .owner = THIS_MODULE,
+ .open = drm_open,
+ .release = drm_release,
+ .unlocked_ioctl = drm_ioctl,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = drm_compat_ioctl,
+#endif
+ .poll = drm_poll,
+ .read = drm_read,
+ .llseek = no_llseek,
+ .mmap = drm_gem_cma_mmap,
+};
+
+static int kirin_gem_cma_dumb_create(struct drm_file *file,
+ struct drm_device *dev,
+ struct drm_mode_create_dumb *args)
+{
+ return drm_gem_cma_dumb_create_internal(file, dev, args);
+}
+
+static struct drm_driver kirin_drm_driver = {
+ .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME |
+ DRIVER_ATOMIC | DRIVER_HAVE_IRQ,
+ .fops = &kirin_drm_fops,
+ .set_busid = drm_platform_set_busid,
+
+ .gem_free_object = drm_gem_cma_free_object,
+ .gem_vm_ops = &drm_gem_cma_vm_ops,
+ .dumb_create = kirin_gem_cma_dumb_create,
+ .dumb_map_offset = drm_gem_cma_dumb_map_offset,
+ .dumb_destroy = drm_gem_dumb_destroy,
+
+ .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
+ .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
+ .gem_prime_export = drm_gem_prime_export,
+ .gem_prime_import = drm_gem_prime_import,
+ .gem_prime_get_sg_table = drm_gem_cma_prime_get_sg_table,
+ .gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table,
+ .gem_prime_vmap = drm_gem_cma_prime_vmap,
+ .gem_prime_vunmap = drm_gem_cma_prime_vunmap,
+ .gem_prime_mmap = drm_gem_cma_prime_mmap,
+
+ .name = "kirin",
+ .desc = "Hisilicon Kirin SoCs' DRM Driver",
+ .date = "20150718",
+ .major = 1,
+ .minor = 0,
+};
+
+static int compare_of(struct device *dev, void *data)
+{
+ return dev->of_node == data;
+}
+
+static int kirin_drm_connectors_register(struct drm_device *dev)
+{
+ struct drm_connector *connector;
+ struct drm_connector *failed_connector;
+ int ret;
+
+ mutex_lock(&dev->mode_config.mutex);
+ drm_for_each_connector(connector, dev) {
+ ret = drm_connector_register(connector);
+ if (ret) {
+ failed_connector = connector;
+ goto err;
+ }
+ }
+ mutex_unlock(&dev->mode_config.mutex);
+
+ return 0;
+
+err:
+ drm_for_each_connector(connector, dev) {
+ if (failed_connector == connector)
+ break;
+ drm_connector_unregister(connector);
+ }
+ mutex_unlock(&dev->mode_config.mutex);
+
+ return ret;
+}
+
+static int kirin_drm_bind(struct device *dev)
+{
+ struct drm_driver *driver = &kirin_drm_driver;
+ struct drm_device *drm_dev;
+ int ret;
+
+ drm_dev = drm_dev_alloc(driver, dev);
+ if (!drm_dev)
+ return -ENOMEM;
+
+ drm_dev->platformdev = to_platform_device(dev);
+
+ ret = kirin_drm_kms_init(drm_dev);
+ if (ret)
+ goto err_drm_dev_unref;
+
+ ret = drm_dev_register(drm_dev, 0);
+ if (ret)
+ goto err_kms_cleanup;
+
+ /* connectors should be registered after drm device register */
+ ret = kirin_drm_connectors_register(drm_dev);
+ if (ret)
+ goto err_drm_dev_unregister;
+
+ DRM_INFO("Initialized %s %d.%d.%d %s on minor %d\n",
+ driver->name, driver->major, driver->minor, driver->patchlevel,
+ driver->date, drm_dev->primary->index);
+
+ return 0;
+
+err_drm_dev_unregister:
+ drm_dev_unregister(drm_dev);
+err_kms_cleanup:
+ kirin_drm_kms_cleanup(drm_dev);
+err_drm_dev_unref:
+ drm_dev_unref(drm_dev);
+
+ return ret;
+}
+
+static void kirin_drm_unbind(struct device *dev)
+{
+ drm_put_dev(dev_get_drvdata(dev));
+}
+
+static const struct component_master_ops kirin_drm_ops = {
+ .bind = kirin_drm_bind,
+ .unbind = kirin_drm_unbind,
+};
+
+static struct device_node *kirin_get_remote_node(struct device_node *np)
+{
+ struct device_node *endpoint, *remote;
+
+ /* get the first endpoint, in our case only one remote node
+ * is connected to display controller.
+ */
+ endpoint = of_graph_get_next_endpoint(np, NULL);
+ if (!endpoint) {
+ DRM_ERROR("no valid endpoint node\n");
+ return ERR_PTR(-ENODEV);
+ }
+ of_node_put(endpoint);
+
+ remote = of_graph_get_remote_port_parent(endpoint);
+ if (!remote) {
+ DRM_ERROR("no valid remote node\n");
+ return ERR_PTR(-ENODEV);
+ }
+ of_node_put(remote);
+
+ if (!of_device_is_available(remote)) {
+ DRM_ERROR("not available for remote node\n");
+ return ERR_PTR(-ENODEV);
+ }
+
+ return remote;
+}
+
+static int kirin_drm_platform_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct device_node *np = dev->of_node;
+ struct component_match *match = NULL;
+ struct device_node *remote;
+
+ dc_ops = (struct kirin_dc_ops *)of_device_get_match_data(dev);
+ if (!dc_ops) {
+ DRM_ERROR("failed to get dt id data\n");
+ return -EINVAL;
+ }
+
+ remote = kirin_get_remote_node(np);
+ if (IS_ERR(remote))
+ return PTR_ERR(remote);
+
+ component_match_add(dev, &match, compare_of, remote);
+
+ return component_master_add_with_match(dev, &kirin_drm_ops, match);
+
+ return 0;
+}
+
+static int kirin_drm_platform_remove(struct platform_device *pdev)
+{
+ component_master_del(&pdev->dev, &kirin_drm_ops);
+ dc_ops = NULL;
+ return 0;
+}
+
+static const struct of_device_id kirin_drm_dt_ids[] = {
+ { .compatible = "hisilicon,hi6220-ade",
+ .data = &ade_dc_ops,
+ },
+ { /* end node */ },
+};
+MODULE_DEVICE_TABLE(of, kirin_drm_dt_ids);
+
+static struct platform_driver kirin_drm_platform_driver = {
+ .probe = kirin_drm_platform_probe,
+ .remove = kirin_drm_platform_remove,
+ .driver = {
+ .name = "kirin-drm",
+ .of_match_table = kirin_drm_dt_ids,
+ },
+};
+
+module_platform_driver(kirin_drm_platform_driver);
+
+MODULE_AUTHOR("Xinliang Liu <xinliang.liu@linaro.org>");
+MODULE_AUTHOR("Xinliang Liu <z.liuxinliang@hisilicon.com>");
+MODULE_AUTHOR("Xinwei Kong <kong.kongxinwei@hisilicon.com>");
+MODULE_DESCRIPTION("hisilicon Kirin SoCs' DRM master driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.h b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.h
new file mode 100644
index 000000000000..1a07caf8e7f4
--- /dev/null
+++ b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.h
@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2016 Linaro Limited.
+ * Copyright (c) 2014-2016 Hisilicon Limited.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#ifndef __KIRIN_DRM_DRV_H__
+#define __KIRIN_DRM_DRV_H__
+
+#define MAX_CRTC 2
+
+/* display controller init/cleanup ops */
+struct kirin_dc_ops {
+ int (*init)(struct drm_device *dev);
+ void (*cleanup)(struct drm_device *dev);
+};
+
+struct kirin_drm_private {
+ struct drm_crtc *crtc[MAX_CRTC];
+#ifdef CONFIG_DRM_FBDEV_EMULATION
+ struct drm_fbdev_cma *fbdev;
+#endif
+};
+
+extern const struct kirin_dc_ops ade_dc_ops;
+
+#endif /* __KIRIN_DRM_DRV_H__ */
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-20 16:41:38 +0300