From ec5507707a1d1e84056a6c864338f95f6118d3ca Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Sun, 8 May 2016 16:55:20 -0600 Subject: video: tegra: Move to using simple-panel and pwm-backlight We have standard drivers for panels and backlights which can do most of the work for us. Move the tegra20 LCD driver over to use those instead of custom code. This patch includes device tree changes for the nvidia boards. I have only been able to test seaboard. If this patch is applied, these boards will also need to be synced with the kernel, and updated to use display-timings: - colibri - medcom-wide - paz00 - tec Signed-off-by: Simon Glass Signed-off-by: Tom Warren --- arch/arm/dts/tegra20-harmony.dts | 48 +++++++++++++++++----------------- arch/arm/dts/tegra20-seaboard.dts | 45 ++++++++++++++++---------------- arch/arm/dts/tegra20-ventana.dts | 54 ++++++++++++++++++++------------------- 3 files changed, 75 insertions(+), 72 deletions(-) (limited to 'arch') diff --git a/arch/arm/dts/tegra20-harmony.dts b/arch/arm/dts/tegra20-harmony.dts index a8540d4e9c..8e9fe5ad3f 100644 --- a/arch/arm/dts/tegra20-harmony.dts +++ b/arch/arm/dts/tegra20-harmony.dts @@ -31,7 +31,23 @@ status = "okay"; rgb { status = "okay"; - nvidia,panel = <&lcd_panel>; + + nvidia,panel = <&panel>; + + display-timings { + timing@0 { + /* Seaboard has 1366x768 */ + clock-frequency = <42430000>; + hactive = <1024>; + vactive = <600>; + hback-porch = <138>; + hfront-porch = <34>; + hsync-len = <136>; + vback-porch = <21>; + vfront-porch = <4>; + vsync-len = <4>; + }; + }; }; }; @@ -678,29 +694,13 @@ }; }; - lcd_panel: panel { - clock = <42430000>; - xres = <1024>; - yres = <600>; - left-margin = <138>; - right-margin = <34>; - hsync-len = <136>; - lower-margin = <4>; - upper-margin = <21>; - vsync-len = <4>; - hsync-active-high; - vsyncx-active-high; - nvidia,bits-per-pixel = <16>; - nvidia,pwm = <&pwm 0 0>; - nvidia,backlight-enable-gpios = <&gpio TEGRA_GPIO(B, 5) - GPIO_ACTIVE_HIGH>; - nvidia,lvds-shutdown-gpios = <&gpio TEGRA_GPIO(B, 2) - GPIO_ACTIVE_HIGH>; - nvidia,backlight-vdd-gpios = <&gpio TEGRA_GPIO(W, 0) - GPIO_ACTIVE_HIGH>; - nvidia,panel-vdd-gpios = <&gpio TEGRA_GPIO(C, 6) - GPIO_ACTIVE_HIGH>; - nvidia,panel-timings = <0 0 200 0 0>; + panel: panel { + compatible = "auo,b101aw03", "simple-panel"; + + power-supply = <&vdd_pnl_reg>; + enable-gpios = <&gpio TEGRA_GPIO(B, 2) GPIO_ACTIVE_HIGH>; + + backlight = <&backlight>; }; regulators { diff --git a/arch/arm/dts/tegra20-seaboard.dts b/arch/arm/dts/tegra20-seaboard.dts index 61690943b8..0a454f98cf 100644 --- a/arch/arm/dts/tegra20-seaboard.dts +++ b/arch/arm/dts/tegra20-seaboard.dts @@ -42,6 +42,22 @@ status = "okay"; nvidia,panel = <&panel>; + + display-timings { + timing@0 { + /* Seaboard has 1366x768 */ + clock-frequency = <70600000>; + hactive = <1366>; + vactive = <768>; + hback-porch = <58>; + hfront-porch = <58>; + hsync-len = <58>; + vback-porch = <4>; + vfront-porch = <4>; + vsync-len = <4>; + hsync-active = <1>; + }; + }; }; }; @@ -852,28 +868,13 @@ }; panel: panel { - /* Seaboard has 1366x768 */ - clock = <70600000>; - xres = <1366>; - yres = <768>; - left-margin = <58>; - right-margin = <58>; - hsync-len = <58>; - lower-margin = <4>; - upper-margin = <4>; - vsync-len = <4>; - hsync-active-high; - nvidia,bits-per-pixel = <16>; - nvidia,pwm = <&pwm 2 0>; - nvidia,backlight-enable-gpios = <&gpio TEGRA_GPIO(D, 4) - GPIO_ACTIVE_HIGH>; - nvidia,lvds-shutdown-gpios = <&gpio TEGRA_GPIO(B, 2) - GPIO_ACTIVE_HIGH>; - nvidia,backlight-vdd-gpios = <&gpio TEGRA_GPIO(W, 0) - GPIO_ACTIVE_HIGH>; - nvidia,panel-vdd-gpios = <&gpio TEGRA_GPIO(C, 6) - GPIO_ACTIVE_HIGH>; - nvidia,panel-timings = <400 4 203 17 15>; + compatible = "chunghwa,claa101wa01a", "simple-panel"; + + power-supply = <&vdd_pnl_reg>; + enable-gpios = <&gpio TEGRA_GPIO(B, 2) GPIO_ACTIVE_HIGH>; + + backlight = <&backlight>; + ddc-i2c-bus = <&lvds_ddc>; }; regulators { diff --git a/arch/arm/dts/tegra20-ventana.dts b/arch/arm/dts/tegra20-ventana.dts index 0ce46aebcb..143e964459 100644 --- a/arch/arm/dts/tegra20-ventana.dts +++ b/arch/arm/dts/tegra20-ventana.dts @@ -30,7 +30,24 @@ status = "okay"; rgb { status = "okay"; - nvidia,panel = <&lcd_panel>; + + nvidia,panel = <&panel>; + + display-timings { + timing@0 { + /* Seaboard has 1366x768 */ + clock-frequency = <70600000>; + hactive = <1366>; + vactive = <768>; + hback-porch = <58>; + hfront-porch = <58>; + hsync-len = <58>; + vback-porch = <4>; + vfront-porch = <4>; + vsync-len = <4>; + hsync-active = <1>; + }; + }; }; }; @@ -613,6 +630,16 @@ }; }; + panel: panel { + compatible = "chunghwa,claa101wa01a", "simple-panel"; + + power-supply = <&vdd_pnl_reg>; + enable-gpios = <&gpio TEGRA_GPIO(B, 2) GPIO_ACTIVE_HIGH>; + + backlight = <&backlight>; + ddc-i2c-bus = <&lvds_ddc>; + }; + regulators { compatible = "simple-bus"; #address-cells = <1>; @@ -667,31 +694,6 @@ }; }; - lcd_panel: panel { - clock = <72072000>; - xres = <1366>; - yres = <768>; - left-margin = <58>; - right-margin = <58>; - hsync-len = <58>; - lower-margin = <4>; - upper-margin = <4>; - vsync-len = <4>; - hsync-active-high; - vsync-active-high; - nvidia,bits-per-pixel = <16>; - nvidia,pwm = <&pwm 2 0>; - nvidia,backlight-enable-gpios = <&gpio TEGRA_GPIO(D, 4) - GPIO_ACTIVE_HIGH>; - nvidia,lvds-shutdown-gpios = <&gpio TEGRA_GPIO(B, 2) - GPIO_ACTIVE_HIGH>; - nvidia,backlight-vdd-gpios = <&gpio TEGRA_GPIO(W, 0) - GPIO_ACTIVE_HIGH>; - nvidia,panel-vdd-gpios = <&gpio TEGRA_GPIO(C, 6) - GPIO_ACTIVE_HIGH>; - nvidia,panel-timings = <0 0 200 0 0>; - }; - sound { compatible = "nvidia,tegra-audio-wm8903-ventana", "nvidia,tegra-audio-wm8903"; -- cgit v1.2.1