Re: [PATCH v1 7/7] ARM: dts: ifc6410: add inforce LVDS panel support

From: Archit Taneja
Date: Wed Jul 29 2015 - 01:39:41 EST


Hi Srini,

On 07/28/2015 06:24 PM, Srinivas Kandagatla wrote:
This patch adds LVDS panel for IFC6410.

Signed-off-by: Rob Clark <robdclark@xxxxxxxxx>
[Rob Clark: WIP patch]
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
---
arch/arm/boot/dts/qcom-apq8064-ifc6410.dts | 66 ++++++++++++++++++++++++++++++
1 file changed, 66 insertions(+)

diff --git a/arch/arm/boot/dts/qcom-apq8064-ifc6410.dts b/arch/arm/boot/dts/qcom-apq8064-ifc6410.dts
index 1ab71f1..3bdac02 100644
--- a/arch/arm/boot/dts/qcom-apq8064-ifc6410.dts
+++ b/arch/arm/boot/dts/qcom-apq8064-ifc6410.dts
@@ -63,6 +63,12 @@
qcom,switch-mode-frequency = <3200000>;
};

+ pm8921_l2: l2 {
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1200000>;
+ bias-pull-down;
+ };
+
pm8921_l3: l3 {
regulator-min-microvolt = <3050000>;
regulator-max-microvolt = <3300000>;
@@ -96,6 +102,10 @@
pm8921_lvs1: lvs1 {
bias-pull-down;
};
+
+ pm8921_lvs7: lvs7 {
+ bias-pull-down;
+ };
};
};

@@ -119,6 +129,41 @@

mdp: qcom,mdp@5100000 {
status = "okay";
+ qcom,lvds-panel = <&panel>;

We're trying to switch to the of_graph way of representing connected
panels. With that, the above phandle will go away. This needs to be replaced with:

port {
lvds_out: endpoint {
remote_endpoint = <&auo_in>;
};
};

+ lvds-vccs-3p3v-supply = <&ext_3p3v>;
+ lvds-pll-vdda-supply = <&pm8921_l2>;
+ lvds-vdda-supply = <&pm8921_lvs7>;
+ };
+
+ panel_3p3v: panel_3p3v {
+ compatible = "regulator-fixed";
+ pinctrl-0 = <&disp_en_gpios>;
+ pinctrl-names = "default";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "panel_en_3p3v";
+ regulator-type = "voltage";
+ startup-delay-us = <0>;
+ gpio = <&pm8921_gpio 36 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ regulator-boot-on;
+ };
+
+ backlight: backlight{
+ pinctrl-0 = <&pwm_bl_gpios>;
+ pinctrl-names = "default";
+ compatible = "gpio-backlight";
+ gpios = <&pm8921_gpio 26 GPIO_ACTIVE_HIGH>;
+ default-on;
+ };
+
+ panel: auo,b101xtn01 {
+ status = "okay";
+ compatible = "auo,b101xtn01";
+
+ ddc-i2c-bus = <&i2c3>;
+ backlight = <&backlight>;
+ power-supply = <&panel_3p3v>;

and for the panel:

port {
auo_in: endpoint {
remote-endpoint = <&lvds_out>;
};
};

Thanks,
Archit

};

gsbi3: gsbi@16200000 {
@@ -235,6 +280,27 @@
pm8921_gpio: gpio@150 {
pinctrl-names = "default";
pinctrl-0 = <&wlan_default_gpios>;
+
+ pwm_bl_gpios: pwm-bl-gpios {
+ pios {
+ pins = "gpio26";
+ bias-disable;
+ function = "normal";
+ qcom,drive-strength = <PMIC_GPIO_STRENGTH_HIGH>;
+ power-source = <PM8921_GPIO_S4>;
+ };
+ };
+
+ disp_en_gpios: disp-en-gpios {
+ pios {
+ pins = "gpio36";
+ bias-disable;
+ function = "normal";
+ qcom,drive-strength = <PMIC_GPIO_STRENGTH_HIGH>;
+ power-source = <PM8921_GPIO_S4>;
+ };
+ };
+
wlan_default_gpios: wlan-gpios {
pios {
pins = "gpio43";


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