Re: [PATCH v2 4/4] ARM: dts: Add stmpe-adc driver to relevant devicetrees

From: Shawn Guo
Date: Tue Nov 27 2018 - 22:00:39 EST

On Mon, Nov 19, 2018 at 11:25:28AM +0100, Philippe Schenker wrote:
> From: Philippe Schenker <philippe.schenker@xxxxxxxxxxx>
>
> Activate the stmpe-adc driver as found on Apalis/Colibri iMX6/T30 modules

iMX6 and T30 changes need to be separate patches.

Shawn

>
> Signed-off-by: Philippe Schenker <philippe.schenker@xxxxxxxxxxx>
> ---
>
> Changes in v2:
> - Put common ADC settings in mfd
>
> arch/arm/boot/dts/imx6qdl-apalis.dtsi | 22 ++++++++++++++--------
> arch/arm/boot/dts/imx6qdl-colibri.dtsi | 23 +++++++++++++++--------
> arch/arm/boot/dts/tegra30-apalis.dtsi | 22 ++++++++++++++--------
> arch/arm/boot/dts/tegra30-colibri.dtsi | 22 ++++++++++++++--------
> 4 files changed, 57 insertions(+), 32 deletions(-)
>
> diff --git a/arch/arm/boot/dts/imx6qdl-apalis.dtsi b/arch/arm/boot/dts/imx6qdl-apalis.dtsi
> index 3dc99dd8dde1..8db476d8978d 100644
> --- a/arch/arm/boot/dts/imx6qdl-apalis.dtsi
> +++ b/arch/arm/boot/dts/imx6qdl-apalis.dtsi
> @@ -331,11 +331,18 @@
> id = <0>;
> blocks = <0x5>;
> irq-trigger = <0x1>;
> + /* 3.25 MHz ADC clock speed */
> + st,adc-freq = <1>;
> + /* 12-bit ADC */
> + st,mod-12b = <1>;
> + /* internal ADC reference */
> + st,ref-sel = <0>;
> + /* ADC converstion time: 80 clocks */
> + st,sample-time = <4>;
> + /* forbid to use ADC channels 3-0 (touch) */
>
> stmpe_touchscreen {
> compatible = "st,stmpe-ts";
> - /* 3.25 MHz ADC clock speed */
> - st,adc-freq = <1>;
> /* 8 sample average control */
> st,ave-ctrl = <3>;
> /* 7 length fractional part in z */
> @@ -345,17 +352,16 @@
> * current limit value
> */
> st,i-drive = <1>;
> - /* 12-bit ADC */
> - st,mod-12b = <1>;
> - /* internal ADC reference */
> - st,ref-sel = <0>;
> - /* ADC converstion time: 80 clocks */
> - st,sample-time = <4>;
> /* 1 ms panel driver settling time */
> st,settling = <3>;
> /* 5 ms touch detect interrupt delay */
> st,touch-det-delay = <5>;
> };
> +
> + stmpe_adc {
> + compatible = "st,stmpe-adc";
> + st,norequest-mask = <0x0F>;
> + };
> };
> };
>
> diff --git a/arch/arm/boot/dts/imx6qdl-colibri.dtsi b/arch/arm/boot/dts/imx6qdl-colibri.dtsi
> index 87e15e7cb32b..2e303d79c7f8 100644
> --- a/arch/arm/boot/dts/imx6qdl-colibri.dtsi
> +++ b/arch/arm/boot/dts/imx6qdl-colibri.dtsi
> @@ -262,11 +262,18 @@
> id = <0>;
> blocks = <0x5>;
> irq-trigger = <0x1>;
> + /* 3.25 MHz ADC clock speed */
> + st,adc-freq = <1>;
> + /* 12-bit ADC */
> + st,mod-12b = <1>;
> + /* internal ADC reference */
> + st,ref-sel = <0>;
> + /* ADC converstion time: 80 clocks */
> + st,sample-time = <4>;
> + /* forbid to use ADC channels 3-0 (touch) */
>
> stmpe_touchscreen {
> compatible = "st,stmpe-ts";
> - /* 3.25 MHz ADC clock speed */
> - st,adc-freq = <1>;
> /* 8 sample average control */
> st,ave-ctrl = <3>;
> /* 7 length fractional part in z */
> @@ -276,17 +283,17 @@
> * current limit value
> */
> st,i-drive = <1>;
> - /* 12-bit ADC */
> - st,mod-12b = <1>;
> - /* internal ADC reference */
> - st,ref-sel = <0>;
> - /* ADC converstion time: 80 clocks */
> - st,sample-time = <4>;
> /* 1 ms panel driver settling time */
> st,settling = <3>;
> /* 5 ms touch detect interrupt delay */
> st,touch-det-delay = <5>;
> };
> +
> + stmpe_adc {
> + compatible = "st,stmpe-adc";
> + /* 3.25 MHz ADC clock speed */
> + st,norequest-mask = <0x0F>;
> + };
> };
> };
>
> diff --git a/arch/arm/boot/dts/tegra30-apalis.dtsi b/arch/arm/boot/dts/tegra30-apalis.dtsi
> index 7f112f192fe9..850b0d13549a 100644
> --- a/arch/arm/boot/dts/tegra30-apalis.dtsi
> +++ b/arch/arm/boot/dts/tegra30-apalis.dtsi
> @@ -976,11 +976,18 @@
> id = <0>;
> blocks = <0x5>;
> irq-trigger = <0x1>;
> + /* 3.25 MHz ADC clock speed */
> + st,adc-freq = <1>;
> + /* 12-bit ADC */
> + st,mod-12b = <1>;
> + /* internal ADC reference */
> + st,ref-sel = <0>;
> + /* ADC converstion time: 80 clocks */
> + st,sample-time = <4>;
> + /* forbid to use ADC channels 3-0 (touch) */
>
> stmpe_touchscreen {
> compatible = "st,stmpe-ts";
> - /* 3.25 MHz ADC clock speed */
> - st,adc-freq = <1>;
> /* 8 sample average control */
> st,ave-ctrl = <3>;
> /* 7 length fractional part in z */
> @@ -990,17 +997,16 @@
> * current limit value
> */
> st,i-drive = <1>;
> - /* 12-bit ADC */
> - st,mod-12b = <1>;
> - /* internal ADC reference */
> - st,ref-sel = <0>;
> - /* ADC converstion time: 80 clocks */
> - st,sample-time = <4>;
> /* 1 ms panel driver settling time */
> st,settling = <3>;
> /* 5 ms touch detect interrupt delay */
> st,touch-det-delay = <5>;
> };
> +
> + stmpe_adc {
> + compatible = "st,stmpe-adc";
> + st,norequest-mask = <0x0F>;
> + };
> };
>
> /*
> diff --git a/arch/arm/boot/dts/tegra30-colibri.dtsi b/arch/arm/boot/dts/tegra30-colibri.dtsi
> index 35af03ca9e90..1f9198bb24ff 100644
> --- a/arch/arm/boot/dts/tegra30-colibri.dtsi
> +++ b/arch/arm/boot/dts/tegra30-colibri.dtsi
> @@ -845,11 +845,18 @@
> id = <0>;
> blocks = <0x5>;
> irq-trigger = <0x1>;
> + /* 3.25 MHz ADC clock speed */
> + st,adc-freq = <1>;
> + /* 12-bit ADC */
> + st,mod-12b = <1>;
> + /* internal ADC reference */
> + st,ref-sel = <0>;
> + /* ADC converstion time: 80 clocks */
> + st,sample-time = <4>;
> + /* forbid to use ADC channels 3-0 (touch) */
>
> stmpe_touchscreen {
> compatible = "st,stmpe-ts";
> - /* 3.25 MHz ADC clock speed */
> - st,adc-freq = <1>;
> /* 8 sample average control */
> st,ave-ctrl = <3>;
> /* 7 length fractional part in z */
> @@ -859,17 +866,16 @@
> * current limit value
> */
> st,i-drive = <1>;
> - /* 12-bit ADC */
> - st,mod-12b = <1>;
> - /* internal ADC reference */
> - st,ref-sel = <0>;
> - /* ADC converstion time: 80 clocks */
> - st,sample-time = <4>;
> /* 1 ms panel driver settling time */
> st,settling = <3>;
> /* 5 ms touch detect interrupt delay */
> st,touch-det-delay = <5>;
> };
> +
> + stmpe_adc {
> + compatible = "st,stmpe-adc";
> + st,norequest-mask = <0x0F>;
> + };
> };
>
> /*
> --
> 2.19.1
>