LinuxLists.cc - Re: [PATCH] ARM: dts: imx7d-pico: Add LCD support

2019-10-25 20:55:39

Subject: Re: [PATCH] ARM: dts: imx7d-pico: Add LCD support

Hi Joris,

On 19-10-25 10:22, Joris Offouga wrote:
> Add support for the VXT VL050-8048NT-C01 panel connected through
> the 24 bit parallel LCDIF interface.
>
> Signed-off-by: Joris Offouga <[email protected]>
> Signed-off-by: Fabio Estevam <[email protected]>
> Signed-off-by: Otavio Salvador <[email protected]>
> ---
> arch/arm/boot/dts/imx7d-pico.dtsi | 84 +++++++++++++++++++++++++++++++
> 1 file changed, 84 insertions(+)
>
> diff --git a/arch/arm/boot/dts/imx7d-pico.dtsi b/arch/arm/boot/dts/imx7d-pico.dtsi
> index 6f50ebf31a0a..9042b1e6f1db 100644
> --- a/arch/arm/boot/dts/imx7d-pico.dtsi
> +++ b/arch/arm/boot/dts/imx7d-pico.dtsi
> @@ -69,6 +69,37 @@
> clocks = <&clks IMX7D_CLKO2_ROOT_DIV>;
> clock-names = "ext_clock";
> };
> +
> + backlight: backlight {
> + compatible = "pwm-backlight";
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_backlight>;
> + pwms = <&pwm4 0 50000 0>;
^
If not inverted please drop the this flag.
Also you need to add

&pwm4 {
status = "okay";
};

And so you can do the pwm pinctrl within that node, see below.

> + brightness-levels = <0 36 72 108 144 180 216 255>;
> + default-brightness-level = <6>;
> + status = "okay";

status can be dropped too.

> + };
> +
> + 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>;

Missing the muxing?

> + enable-active-high;
> + };
> +
> + panel {
> + compatible = "vxt,vl050-8048nt-c01";
> + backlight = <&backlight>;
> + power-supply = <&reg_lcd_3v3>;
> +
> + port {
> + panel_in: endpoint {
> + remote-endpoint = <&display_out>;
> + };
> + };
> + };

Please sort the nodes alphabetical.

> };
>
> &clks {
> @@ -230,6 +261,18 @@
> };
> };
>
> +&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>;
> @@ -349,6 +392,13 @@
> };
>
> &iomuxc {
> +
> + pinctrl_backlight: backlight {
^
please add 'grp'
> + fsl,pins = <
> + MX7D_PAD_GPIO1_IO11__PWM4_OUT 0x0
> + >;
> + };

IMHO the muxing is part of the pwm4 node. So rename it to
'pinctrl_pwm4: pwm4grp'.

Regards,
Marco

> +
> pinctrl_ecspi3: ecspi3grp {
> fsl,pins = <
> MX7D_PAD_I2C1_SCL__ECSPI3_MISO 0x2
> @@ -413,6 +463,40 @@
> >;
> };
>
> + 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
> --
> 2.17.1
>
>
> _______________________________________________
> linux-arm-kernel mailing list
> [email protected]
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
>

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2019-10-25 21:18:36

by Joris Offouga

[permalink] [raw]

Subject: Re: [PATCH] ARM: dts: imx7d-pico: Add LCD support

Hi Marco,

Le 25/10/2019 à 20:45, Marco Felsch a écrit :
> Hi Joris,
>
> On 19-10-25 10:22, Joris Offouga wrote:
>> Add support for the VXT VL050-8048NT-C01 panel connected through
>> the 24 bit parallel LCDIF interface.
>>
>> Signed-off-by: Joris Offouga <[email protected]>
>> Signed-off-by: Fabio Estevam <[email protected]>
>> Signed-off-by: Otavio Salvador <[email protected]>
>> ---
>> arch/arm/boot/dts/imx7d-pico.dtsi | 84 +++++++++++++++++++++++++++++++
>> 1 file changed, 84 insertions(+)
>>
>> diff --git a/arch/arm/boot/dts/imx7d-pico.dtsi b/arch/arm/boot/dts/imx7d-pico.dtsi
>> index 6f50ebf31a0a..9042b1e6f1db 100644
>> --- a/arch/arm/boot/dts/imx7d-pico.dtsi
>> +++ b/arch/arm/boot/dts/imx7d-pico.dtsi
>> @@ -69,6 +69,37 @@
>> clocks = <&clks IMX7D_CLKO2_ROOT_DIV>;
>> clock-names = "ext_clock";
>> };
>> +
>> + backlight: backlight {
>> + compatible = "pwm-backlight";
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&pinctrl_backlight>;
>> + pwms = <&pwm4 0 50000 0>;
> ^
> If not inverted please drop the this flag.
> Also you need to add
>
> &pwm4 {
> status = "okay";
> };
This node is already provide but i agree with you i move pinctrl in
pwm4 node and rename the muxing
>
> And so you can do the pwm pinctrl within that node, see below.
>
>> + brightness-levels = <0 36 72 108 144 180 216 255>;
>> + default-brightness-level = <6>;
>> + status = "okay";
> status can be dropped too.
>
>> + };
>> +
>> + 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>;
> Missing the muxing?
No this pin is already drive
>
>> + enable-active-high;
>> + };
>> +
>> + panel {
>> + compatible = "vxt,vl050-8048nt-c01";
>> + backlight = <&backlight>;
>> + power-supply = <&reg_lcd_3v3>;
>> +
>> + port {
>> + panel_in: endpoint {
>> + remote-endpoint = <&display_out>;
>> + };
>> + };
>> + };
> Please sort the nodes alphabetical.

okay thanks for your review

otherwise Fabio made me notice that I should leave his From however with
the changes made I should put mine?

Best regards,

Joris

>
>> };
>>
>> &clks {
>> @@ -230,6 +261,18 @@
>> };
>> };
>>
>> +&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>;
>> @@ -349,6 +392,13 @@
>> };
>>
>> &iomuxc {
>> +
>> + pinctrl_backlight: backlight {
> ^
> please add 'grp'
>> + fsl,pins = <
>> + MX7D_PAD_GPIO1_IO11__PWM4_OUT 0x0
>> + >;
>> + };
> IMHO the muxing is part of the pwm4 node. So rename it to
> 'pinctrl_pwm4: pwm4grp'.
>
> Regards,
> Marco
>
>> +
>> pinctrl_ecspi3: ecspi3grp {
>> fsl,pins = <
>> MX7D_PAD_I2C1_SCL__ECSPI3_MISO 0x2
>> @@ -413,6 +463,40 @@
>> >;
>> };
>>
>> + 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
>> --
>> 2.17.1
>>
>>
>> _______________________________________________
>> linux-arm-kernel mailing list
>> [email protected]
>> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
>>

2019-10-26 19:21:19

by Fabio Estevam

[permalink] [raw]

Subject: Re: [PATCH] ARM: dts: imx7d-pico: Add LCD support

Hi Joris,

On Fri, Oct 25, 2019 at 6:16 PM Joris Offouga <[email protected]> wrote:

> otherwise Fabio made me notice that I should leave his From however with
> the changes made I should put mine?

It is normal when we submit someone else's patch and we need to change
a few things based on review feedback.

Even so, the original From should be kept.

2019-10-26 20:30:51

by Joris Offouga

[permalink] [raw]

Subject: Re: [PATCH] ARM: dts: imx7d-pico: Add LCD support

Hi Fabio,

Le 26/10/2019 à 21:20, Fabio Estevam a écrit :
> Hi Joris,
>
> On Fri, Oct 25, 2019 at 6:16 PM Joris Offouga <[email protected]> wrote:
>
>> otherwise Fabio made me notice that I should leave his From however with
>> the changes made I should put mine?
> It is normal when we submit someone else's patch and we need to change
> a few things based on review feedback.
>
> Even so, the original From should be kept.

Thanks for your reply, i send v3 with Marco's feedback

Best regards,

Joris