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SubjectRe: [PATCH V3] ARM: dts: imx7d-pico: Add LCD support
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Hi Marco,

Sorry for the delay,

Le 30/10/2019 à 09:27, Marco Felsch a écrit :
> Hi Joris,
>
> On 19-10-29 11:17, Joris Offouga wrote:
>> From: Fabio Estevam<festevam@gmail.com>
>>
>> Add support for the VXT VL050-8048NT-C01 panel connected through
>> the 24 bit parallel LCDIF interface.
>>
>> Signed-off-by: Fabio Estevam<festevam@gmail.com>
>> Signed-off-by: Otavio Salvador<otavio@ossystems.com.br>
>> Signed-off-by: Joris Offouga<offougajoris@gmail.com>
>> ---
>> Changes v2 -> v3
>> rename pintcrl_backlight to pinctrl_pwm4
>> sort the nodes alphabetical
>>
>> Changes v1 -> v2
>> change "From:" Joris Offouga to Fabio Estevam
>> set Joris Offouga signed-off to the last one
>>
>> arch/arm/boot/dts/imx7d-pico.dtsi | 82 +++++++++++++++++++++++++++++++
>> 1 file changed, 82 insertions(+)
>>
>> diff --git a/arch/arm/boot/dts/imx7d-pico.dtsi b/arch/arm/boot/dts/imx7d-pico.dtsi
>> index 6f50ebf31a0a..9c7c2c45e6aa 100644
>> --- a/arch/arm/boot/dts/imx7d-pico.dtsi
>> +++ b/arch/arm/boot/dts/imx7d-pico.dtsi
>> @@ -7,12 +7,40 @@
>> #include "imx7d.dtsi"
>>
>> / {
>> + backlight: backlight {
>> + compatible = "pwm-backlight";
>> + pwms = <&pwm4 0 50000 0>;
> ^
> still not needed

This is necessary, because it's not provide, we have this warning :

  DTC     arch/arm/boot/dts/imx7d-pico-pi.dtb
arch/arm/boot/dts/imx7d-pico.dtsi:12.17-40: Warning (pwms_property):
/backlight:pwms: property size (12) too small for cell size 3

>> + brightness-levels = <0 36 72 108 144 180 216 255>;
>> + default-brightness-level = <6>;
>> + };
>> +
>> /* Will be filled by the bootloader */
>> memory@80000000 {
>> device_type = "memory";
>> reg = <0x80000000 0>;
>> };
>>
>> + panel {
>> + compatible = "vxt,vl050-8048nt-c01";
>> + backlight = <&backlight>;
>> + power-supply = <&reg_lcd_3v3>;
>> +
>> + port {
>> + panel_in: endpoint {
>> + remote-endpoint = <&display_out>;
>> + };
>> + };
>> + };
>> +
>> + reg_lcd_3v3: regulator-lcd-3v3 {
>> + compatible = "regulator-fixed";
>> + regulator-name = "lcd-3v3";
>> + regulator-min-microvolt = <3300000>;
>> + regulator-max-microvolt = <3300000>;
>> + gpio = <&gpio1 6 GPIO_ACTIVE_HIGH>;
> Where happens the muxing for this gpio?

I add it for V4

Thanks

>
>> + enable-active-high;
>> + };
>> +
>> reg_wlreg_on: regulator-wlreg_on {
>> compatible = "regulator-fixed";
>> pinctrl-names = "default";
>> @@ -230,6 +258,18 @@
>> };
>> };
>>
>> +&lcdif {
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&pinctrl_lcdif>;
>> + status = "okay";
>> +
>> + port {
>> + display_out: endpoint {
>> + remote-endpoint = <&panel_in>;
>> + };
>> + };
>> +};
>> +
>> &sai1 {
>> pinctrl-names = "default";
>> pinctrl-0 = <&pinctrl_sai1>;
>> @@ -260,6 +300,8 @@
>> };
>>
>> &pwm4 { /* Backlight */
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&pinctrl_pwm4>;
>> status = "okay";
>> };
>>
>> @@ -413,6 +455,40 @@
>> >;
>> };
>>
>> + pinctrl_lcdif: lcdifgrp {
>> + fsl,pins = <
>> + MX7D_PAD_LCD_DATA00__LCD_DATA0 0x79
>> + MX7D_PAD_LCD_DATA01__LCD_DATA1 0x79
>> + MX7D_PAD_LCD_DATA02__LCD_DATA2 0x79
>> + MX7D_PAD_LCD_DATA03__LCD_DATA3 0x79
>> + MX7D_PAD_LCD_DATA04__LCD_DATA4 0x79
>> + MX7D_PAD_LCD_DATA05__LCD_DATA5 0x79
>> + MX7D_PAD_LCD_DATA06__LCD_DATA6 0x79
>> + MX7D_PAD_LCD_DATA07__LCD_DATA7 0x79
>> + MX7D_PAD_LCD_DATA08__LCD_DATA8 0x79
>> + MX7D_PAD_LCD_DATA09__LCD_DATA9 0x79
>> + MX7D_PAD_LCD_DATA10__LCD_DATA10 0x79
>> + MX7D_PAD_LCD_DATA11__LCD_DATA11 0x79
>> + MX7D_PAD_LCD_DATA12__LCD_DATA12 0x79
>> + MX7D_PAD_LCD_DATA13__LCD_DATA13 0x79
>> + MX7D_PAD_LCD_DATA14__LCD_DATA14 0x79
>> + MX7D_PAD_LCD_DATA15__LCD_DATA15 0x79
>> + MX7D_PAD_LCD_DATA16__LCD_DATA16 0x79
>> + MX7D_PAD_LCD_DATA17__LCD_DATA17 0x79
>> + MX7D_PAD_LCD_DATA18__LCD_DATA18 0x79
>> + MX7D_PAD_LCD_DATA19__LCD_DATA19 0x79
>> + MX7D_PAD_LCD_DATA20__LCD_DATA20 0x79
>> + MX7D_PAD_LCD_DATA21__LCD_DATA21 0x79
>> + MX7D_PAD_LCD_DATA22__LCD_DATA22 0x79
>> + MX7D_PAD_LCD_DATA23__LCD_DATA23 0x79
>> + MX7D_PAD_LCD_CLK__LCD_CLK 0x79
>> + MX7D_PAD_LCD_ENABLE__LCD_ENABLE 0x78
>> + MX7D_PAD_LCD_VSYNC__LCD_VSYNC 0x78
>> + MX7D_PAD_LCD_HSYNC__LCD_HSYNC 0x78
>> + MX7D_PAD_LCD_RESET__GPIO3_IO4 0x14
>> + >;
>> + };
>> +
>> pinctrl_pwm1: pwm1 {
>> fsl,pins = <
>> MX7D_PAD_GPIO1_IO08__PWM1_OUT 0x7f
>> @@ -431,6 +507,12 @@
>> >;
>> };
>>
>> + pinctrl_pwm4: pwm4grp{
>> + fsl,pins = <
>> + MX7D_PAD_GPIO1_IO11__PWM4_OUT 0x0
> ^
> Is this muxing value valid?

I fix for V4

Regards,

Joris

>
> Regards,
> Marco
>
>> + >;
>> + };
>> +
>> pinctrl_reg_wlreg_on: regregongrp {
>> fsl,pins = <
>> MX7D_PAD_ECSPI1_SCLK__GPIO4_IO16 0x59
>> --
>> 2.17.1
>>
>>
>>

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