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authorSimon Glass <sjg@chromium.org>2016-05-08 16:55:20 -0600
committerTom Warren <twarren@nvidia.com>2016-07-05 13:19:08 -0700
commitec5507707a1d1e84056a6c864338f95f6118d3ca (patch)
tree2667abcfd1aab2cdefbd5101063c456734da6a46 /arch
parentce02a71c23749f2334ee84a3a88f5da30774edfa (diff)
downloadtalos-obmc-uboot-ec5507707a1d1e84056a6c864338f95f6118d3ca.tar.gz
talos-obmc-uboot-ec5507707a1d1e84056a6c864338f95f6118d3ca.zip
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 <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/dts/tegra20-harmony.dts48
-rw-r--r--arch/arm/dts/tegra20-seaboard.dts45
-rw-r--r--arch/arm/dts/tegra20-ventana.dts54
3 files changed, 75 insertions, 72 deletions
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";
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