On 22.01.2019 14:21, Philippe Schenker wrote:
> From: Philippe Schenker <philippe.schenker@xxxxxxxxxxx>
>
> Add the stmpe-adc DT node as found on Toradex iMX6 modules
>
> Signed-off-by: Philippe Schenker <philippe.schenker@xxxxxxxxxxx>
Reviewed-by: Stefan Agner <stefan@xxxxxxxx>
> ---
>
> arch/arm/boot/dts/imx6qdl-apalis.dtsi | 22 ++++++++++++++--------
> arch/arm/boot/dts/imx6qdl-colibri.dtsi | 22 ++++++++++++++--------
> 2 files changed, 28 insertions(+), 16 deletions(-)
>
> diff --git a/arch/arm/boot/dts/imx6qdl-apalis.dtsi
> b/arch/arm/boot/dts/imx6qdl-apalis.dtsi
> index 8380f1b26826..e8c7ef7e078a 100644
> --- a/arch/arm/boot/dts/imx6qdl-apalis.dtsi
> +++ b/arch/arm/boot/dts/imx6qdl-apalis.dtsi
> @@ -332,11 +332,17 @@
> 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>;
>
> 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 */
> @@ -346,17 +352,17 @@
> * 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";
> + /* forbid to use ADC channels 3-0 (touch) */
> + st,norequest-mask = <0x0F>;
> + };
> };
> };
>
> diff --git a/arch/arm/boot/dts/imx6qdl-colibri.dtsi
> b/arch/arm/boot/dts/imx6qdl-colibri.dtsi
> index 87e15e7cb32b..eb8603a2444e 100644
> --- a/arch/arm/boot/dts/imx6qdl-colibri.dtsi
> +++ b/arch/arm/boot/dts/imx6qdl-colibri.dtsi
> @@ -262,11 +262,17 @@
> 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>;
>
> 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 +282,17 @@
> * 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";
> + /* forbid to use ADC channels 3-0 (touch) */
> + st,norequest-mask = <0x0F>;
> + };
> };
> };
