[PATCH 0/3] ARM: at91: improve at91sam9m10g45ek support

[PATCH 0/3] ARM: at91: improve at91sam9m10g45ek support

[Alexandre Belloni]

Here are a few DT improvements for the at91sam9m10g45ek.

The first patch corrects the ADC support for the at91sam9g45.

The second patch adds ADC and touchscreen support to the at91sam9m10g45ek.

The last one corrects the PWM polarity after the polarity got right in the
driver, following patch "PWM: atmel-pwm: Fix polarity handling"


Alexandre Belloni (3):
  ARM: at91/dt: sam9g45: improve ADC/touchscreen support
  ARM: at91/dt: at91sam9m10g45ek: add ADC and touchscreen support
  ARM: at91/dt: at91sam9m10g45ek PWM leds polarity is inversed

 arch/arm/boot/dts/at91sam9g45.dtsi     | 33 +++++++++++++++++++++++++++++++--
 arch/arm/boot/dts/at91sam9m10g45ek.dts | 20 ++++++++++++++++++--
 2 files changed, 49 insertions(+), 4 deletions(-)

-- 
1.8.3.2

[PATCH 1/3] ARM: at91/dt: sam9g45: improve ADC/touchscreen support

[Alexandre Belloni]

Fixes the compatible string, adds the pinmuxing for the ADC pins.

Also, removes atmel,adc-use-external-triggers as it is not possible to remove it
unless redefining the whole adc node

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
---
 arch/arm/boot/dts/at91sam9g45.dtsi | 33 +++++++++++++++++++++++++++++++--
 1 file changed, 31 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/at91sam9g45.dtsi b/arch/arm/boot/dts/at91sam9g45.dtsi
index dc4fb7d99902..b1d67282b0b6 100644
--- a/arch/arm/boot/dts/at91sam9g45.dtsi
+++ b/arch/arm/boot/dts/at91sam9g45.dtsi
@@ -136,6 +136,36 @@
 				      >;
 
 				/* shared pinctrl settings */
+				adc0 {
+					pinctrl_adc0_adtrg: adc0_adtrg {
+						atmel,pins = <AT91_PIOD 28 AT91_PERIPH_A AT91_PINCTRL_NONE>;
+					};
+					pinctrl_adc0_ad0: adc0_ad0 {
+						atmel,pins = <AT91_PIOD 20 AT91_PERIPH_GPIO AT91_PINCTRL_NONE>;
+					};
+					pinctrl_adc0_ad1: adc0_ad1 {
+						atmel,pins = <AT91_PIOD 21 AT91_PERIPH_GPIO AT91_PINCTRL_NONE>;
+					};
+					pinctrl_adc0_ad2: adc0_ad2 {
+						atmel,pins = <AT91_PIOD 22 AT91_PERIPH_GPIO AT91_PINCTRL_NONE>;
+					};
+					pinctrl_adc0_ad3: adc0_ad3 {
+						atmel,pins = <AT91_PIOD 23 AT91_PERIPH_GPIO AT91_PINCTRL_NONE>;
+					};
+					pinctrl_adc0_ad4: adc0_ad4 {
+						atmel,pins = <AT91_PIOD 24 AT91_PERIPH_GPIO AT91_PINCTRL_NONE>;
+					};
+					pinctrl_adc0_ad5: adc0_ad5 {
+						atmel,pins = <AT91_PIOD 25 AT91_PERIPH_GPIO AT91_PINCTRL_NONE>;
+					};
+					pinctrl_adc0_ad6: adc0_ad6 {
+						atmel,pins = <AT91_PIOD 26 AT91_PERIPH_GPIO AT91_PINCTRL_NONE>;
+					};
+					pinctrl_adc0_ad7: adc0_ad7 {
+						atmel,pins = <AT91_PIOD 27 AT91_PERIPH_GPIO AT91_PINCTRL_NONE>;
+					};
+				};
+
 				dbgu {
 					pinctrl_dbgu: dbgu-0 {
 						atmel,pins =
@@ -634,10 +664,9 @@
 			adc0: adc@fffb0000 {
 				#address-cells = <1>;
 				#size-cells = <0>;
-				compatible = "atmel,at91sam9260-adc";
+				compatible = "atmel,at91sam9g45-adc";
 				reg = <0xfffb0000 0x100>;
 				interrupts = <20 IRQ_TYPE_LEVEL_HIGH 0>;
-				atmel,adc-use-external-triggers;
 				atmel,adc-channels-used = <0xff>;
 				atmel,adc-vref = <3300>;
 				atmel,adc-startup-time = <40>;
-- 
1.8.3.2

[PATCH 2/3] ARM: at91/dt: at91sam9m10g45ek: add ADC and touchscreen support

[Alexandre Belloni]

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
---
 arch/arm/boot/dts/at91sam9m10g45ek.dts | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/arch/arm/boot/dts/at91sam9m10g45ek.dts b/arch/arm/boot/dts/at91sam9m10g45ek.dts
index 7ff665a8c708..7800931a4b16 100644
--- a/arch/arm/boot/dts/at91sam9m10g45ek.dts
+++ b/arch/arm/boot/dts/at91sam9m10g45ek.dts
@@ -130,6 +130,21 @@
 				status = "okay";
 			};
 
+			adc0: adc@fffb0000 {
+				pinctrl-names = "default";
+				pinctrl-0 = <
+					&pinctrl_adc0_ad0
+					&pinctrl_adc0_ad1
+					&pinctrl_adc0_ad2
+					&pinctrl_adc0_ad3
+					&pinctrl_adc0_ad4
+					&pinctrl_adc0_ad5
+					&pinctrl_adc0_ad6
+					&pinctrl_adc0_ad7>;
+				atmel,adc-ts-wires = <4>;
+				status = "okay";
+			};
+
 			pwm0: pwm@fffb8000 {
 				status = "okay";
 
-- 
1.8.3.2

[PATCH 3/3] ARM: at91/dt: at91sam9m10g45ek PWM leds polarity is inversed

[Alexandre Belloni]

The real polarity of the LEDs is inversed. The led is between 3.3v and the PWM.
It was working before because the driver was getting the duty cycle calculation
wrong.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
---
 arch/arm/boot/dts/at91sam9m10g45ek.dts | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/at91sam9m10g45ek.dts b/arch/arm/boot/dts/at91sam9m10g45ek.dts
index 7800931a4b16..9f5b0a674995 100644
--- a/arch/arm/boot/dts/at91sam9m10g45ek.dts
+++ b/arch/arm/boot/dts/at91sam9m10g45ek.dts
@@ -8,6 +8,7 @@
  */
 /dts-v1/;
 #include "at91sam9g45.dtsi"
+#include <dt-bindings/pwm/pwm.h>
 
 / {
 	model = "Atmel AT91SAM9M10G45-EK";
@@ -231,14 +232,14 @@
 
 		d6 {
 			label = "d6";
-			pwms = <&pwm0 3 5000 0>;
+			pwms = <&pwm0 3 5000 PWM_POLARITY_INVERTED>;
 			max-brightness = <255>;
 			linux,default-trigger = "nand-disk";
 		};
 
 		d7 {
 			label = "d7";
-			pwms = <&pwm0 1 5000 0>;
+			pwms = <&pwm0 1 5000 PWM_POLARITY_INVERTED>;
 			max-brightness = <255>;
 			linux,default-trigger = "mmc0";
 		};
-- 
1.8.3.2

Re: [PATCH 0/3] ARM: at91: improve at91sam9m10g45ek support

[Nicolas Ferre]

On 19/03/2014 00:15, Alexandre Belloni :
> Here are a few DT improvements for the at91sam9m10g45ek.
> 
> The first patch corrects the ADC support for the at91sam9g45.
> 
> The second patch adds ADC and touchscreen support to the at91sam9m10g45ek.
> 
> The last one corrects the PWM polarity after the polarity got right in the
> driver, following patch "PWM: atmel-pwm: Fix polarity handling"
> 
> 
> Alexandre Belloni (3):
>   ARM: at91/dt: sam9g45: improve ADC/touchscreen support
>   ARM: at91/dt: at91sam9m10g45ek: add ADC and touchscreen support
>   ARM: at91/dt: at91sam9m10g45ek PWM leds polarity is inversed

Ok, nice: the whole series stacked on top of at91-3.16-dt. Thanks.

Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>


>  arch/arm/boot/dts/at91sam9g45.dtsi     | 33 +++++++++++++++++++++++++++++++--
>  arch/arm/boot/dts/at91sam9m10g45ek.dts | 20 ++++++++++++++++++--
>  2 files changed, 49 insertions(+), 4 deletions(-)
> 


-- 
Nicolas Ferre