| Message ID | 20190122132135.5012-2-dev@pschenker.ch (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Adding DTS to support STMPE811 ADC on Toradex Boards | expand |
On 22.01.2019 14:21, Philippe Schenker wrote: > From: Philippe Schenker <philippe.schenker@toradex.com> > > Add the stmpe-adc DT node as found on Toradex iMX6 modules > > Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com> Reviewed-by: Stefan Agner <stefan@agner.ch> > --- > > 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>; > + }; > }; > };
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>; + }; }; };