linux-kernel - Re: [PATCH 06/10] arm64: dts: imx8mp-skov: describe LVDS display pipeline

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Message-ID: <c0068bd7-a49a-49b0-889f-a864dd9170a8@pengutronix.de>
Date: Mon, 6 Jan 2025 16:36:52 +0100
From: Ahmad Fatoum <a.fatoum@...gutronix.de>
To: Frank Li <Frank.li@....com>
Cc: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
 Sascha Hauer <s.hauer@...gutronix.de>,
 Pengutronix Kernel Team <kernel@...gutronix.de>,
 Fabio Estevam <festevam@...il.com>, Oleksij Rempel
 <o.rempel@...gutronix.de>, devicetree@...r.kernel.org, imx@...ts.linux.dev,
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 06/10] arm64: dts: imx8mp-skov: describe LVDS display
 pipeline

Hello Frank,

On 19.12.24 20:24, Frank Li wrote:
> On Thu, Dec 19, 2024 at 06:45:24PM +0100, Ahmad Fatoum wrote:
>> On 19.12.24 18:37, Frank Li wrote:
>>> On Thu, Dec 19, 2024 at 08:25:30AM +0100, Ahmad Fatoum wrote:
>>>> From: Oleksij Rempel <o.rempel@...gutronix.de>
>>>>
>>>> The Skov i.MX8MP LT6 device tree so far described the touch screen, but
>>>> didn't describe the screen itself. Fill out these missing pieces.
>>>
>>> Add "ti,sn65lvds822" touch screen description for i.MX8MP LT6 board.
>>
>> This is not what this patch does. Touch screen was already described
>> and now the remainder is being added, just like what my message said.
> 
> My main means, use below order to descript commit message
> 
> Add ... for ...

Sorry, I won't start every sentence with a verb. The commit message
is fine IMO.

Thanks,
Ahmad

> 
> Frank
> 
>>
>> Thanks,
>> Ahmad
>>
>>>
>>> Frank
>>>
>>>> Signed-off-by: Oleksij Rempel <o.rempel@...gutronix.de>
>>>> Signed-off-by: Ahmad Fatoum <a.fatoum@...gutronix.de>
>>>> ---
>>>>  .../boot/dts/freescale/imx8mp-skov-revb-lt6.dts    | 60 ++++++++++++++++++++++
>>>>  1 file changed, 60 insertions(+)
>>>>
>>>> diff --git a/arch/arm64/boot/dts/freescale/imx8mp-skov-revb-lt6.dts b/arch/arm64/boot/dts/freescale/imx8mp-skov-revb-lt6.dts
>>>> index ccbd3abedd69..baecf768a2ee 100644
>>>> --- a/arch/arm64/boot/dts/freescale/imx8mp-skov-revb-lt6.dts
>>>> +++ b/arch/arm64/boot/dts/freescale/imx8mp-skov-revb-lt6.dts
>>>> @@ -8,6 +8,45 @@ / {
>>>>  	model = "SKOV IMX8MP CPU revB - LT6";
>>>>  	compatible = "skov,imx8mp-skov-revb-lt6", "fsl,imx8mp";
>>>>
>>>> +	lvds-decoder {
>>>> +		compatible = "ti,sn65lvds822", "lvds-decoder";
>>>> +		power-supply = <&reg_3v3>;
>>>> +
>>>> +		ports {
>>>> +			#address-cells = <1>;
>>>> +			#size-cells = <0>;
>>>> +
>>>> +			port@0 {
>>>> +				reg = <0>;
>>>> +
>>>> +				in_lvds1: endpoint {
>>>> +					data-mapping = "vesa-24";
>>>> +					remote-endpoint = <&ldb_lvds_ch1>;
>>>> +				};
>>>> +			};
>>>> +
>>>> +			port@1 {
>>>> +				reg = <1>;
>>>> +
>>>> +				lvds_decoder_out: endpoint {
>>>> +					remote-endpoint = <&panel_in>;
>>>> +				};
>>>> +			};
>>>> +		};
>>>> +	};
>>>> +
>>>> +	panel {
>>>> +		compatible = "logictechno,lttd800480070-l6wh-rt";
>>>> +		backlight = <&backlight>;
>>>> +		power-supply = <&reg_tft_vcom>;
>>>> +
>>>> +		port {
>>>> +			panel_in: endpoint {
>>>> +				remote-endpoint = <&lvds_decoder_out>;
>>>> +			};
>>>> +		};
>>>> +	};
>>>> +
>>>>  	touchscreen {
>>>>  		compatible = "resistive-adc-touch";
>>>>  		io-channels = <&adc_ts 1>, <&adc_ts 3>, <&adc_ts 4>, <&adc_ts 5>;
>>>> @@ -78,6 +117,27 @@ channel@5 {
>>>>  	};
>>>>  };
>>>>
>>>> +&lcdif2 {
>>>> +	status = "okay";
>>>> +};
>>>> +
>>>> +&lvds_bridge {
>>>> +	assigned-clocks = <&clk IMX8MP_CLK_MEDIA_LDB>,
>>>> +				 <&clk IMX8MP_VIDEO_PLL1>;
>>>> +	assigned-clock-parents = <&clk IMX8MP_VIDEO_PLL1_OUT>;
>>>> +	/* IMX8MP_VIDEO_PLL1 = IMX8MP_CLK_MEDIA_DISP2_PIX * 2 * 7 */
>>>> +	assigned-clock-rates = <0>, <462000000>;
>>>> +	status = "okay";
>>>> +
>>>> +	ports {
>>>> +		port@2 {
>>>> +			ldb_lvds_ch1: endpoint {
>>>> +				remote-endpoint = <&in_lvds1>;
>>>> +			};
>>>> +		};
>>>> +	};
>>>> +};
>>>> +
>>>>  &pwm1 {
>>>>  	status = "okay";
>>>>  };
>>>>
>>>> --
>>>> 2.39.5
>>>>
>>>
>>
>>
>> --
>> Pengutronix e.K.                           |                             |
>> Steuerwalder Str. 21                       | http://www.pengutronix.de/  |
>> 31137 Hildesheim, Germany                  | Phone: +49-5121-206917-0    |
>> Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |


-- 
Pengutronix e.K.                           |                             |
Steuerwalder Str. 21                       | http://www.pengutronix.de/  |
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