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Message-ID: <55B8DD36.7040907@linaro.org>
Date: Wed, 29 Jul 2015 15:03:34 +0100
From: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To: Archit Taneja <architt@...eaurora.org>, agross@...eaurora.org,
linux-arm-msm@...r.kernel.org
CC: Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>,
Mark Rutland <mark.rutland@....com>,
Ian Campbell <ijc+devicetree@...lion.org.uk>,
Kumar Gala <galak@...eaurora.org>,
Russell King <linux@....linux.org.uk>,
devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org, Rob Clark <robdclark@...il.com>
Subject: Re: [PATCH v1 7/7] ARM: dts: ifc6410: add inforce LVDS panel support
On 29/07/15 06:39, Archit Taneja wrote:
> 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@...il.com>
>> [Rob Clark: WIP patch]
>> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
>> ---
>> 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@...0000 {
>> 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:
>
Thanks for the input, I modified the panel support to use graphs which
works perfectly fine.
thanks,
srini
> 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@...00000 {
>> @@ -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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