On Wed, Aug 14, 2019 at 1:54 PM Philippe Schenker
<philippe.schenker@xxxxxxxxxxx> wrote:
>
> Add the stmpe-adc DT node as found on Toradex T30 modules
>
> Signed-off-by: Philippe Schenker <philippe.schenker@xxxxxxxxxxx>
Reviewed-by: Oleksandr Suvorov <oleksandr.suvorov@xxxxxxxxxxx>
>
> ---
>
> arch/arm/boot/dts/tegra30-apalis-v1.1.dtsi | 22 ++++++++++++++--------
> arch/arm/boot/dts/tegra30-apalis.dtsi | 22 ++++++++++++++--------
> arch/arm/boot/dts/tegra30-colibri.dtsi | 22 ++++++++++++++--------
> 3 files changed, 42 insertions(+), 24 deletions(-)
>
> diff --git a/arch/arm/boot/dts/tegra30-apalis-v1.1.dtsi b/arch/arm/boot/dts/tegra30-apalis-v1.1.dtsi
> index 02f8126481a2..8b7a827d604d 100644
> --- a/arch/arm/boot/dts/tegra30-apalis-v1.1.dtsi
> +++ b/arch/arm/boot/dts/tegra30-apalis-v1.1.dtsi
> @@ -994,11 +994,17 @@
> 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 */
> @@ -1008,17 +1014,17 @@
> * 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/tegra30-apalis.dtsi b/arch/arm/boot/dts/tegra30-apalis.dtsi
> index 7f112f192fe9..c18f6f61d764 100644
> --- a/arch/arm/boot/dts/tegra30-apalis.dtsi
> +++ b/arch/arm/boot/dts/tegra30-apalis.dtsi
> @@ -976,11 +976,17 @@
> 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 */
> @@ -990,17 +996,17 @@
> * 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/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>;
> + };
> };
>
> /*
> --
> 2.22.0
>
--
Best regards
Oleksandr Suvorov
Toradex AG
Altsagenstrasse 5 | 6048 Horw/Luzern | Switzerland | T: +41 41 500
4800 (main line)
