* [PATCH v4] arm64: dts: imx8mm-evk: add pwm1/backlight support
@ 2022-04-13 21:33 ` Tommaso Merciai
0 siblings, 0 replies; 4+ messages in thread
From: Tommaso Merciai @ 2022-04-13 21:33 UTC (permalink / raw)
Cc: tommaso.merciai, linux-amarula, Rob Herring, Krzysztof Kozlowski,
Shawn Guo, Sascha Hauer, Pengutronix Kernel Team, Fabio Estevam,
NXP Linux Team, Joakim Zhang, Li Jun, Richard Zhu, devicetree,
linux-arm-kernel, linux-kernel
Add pwm1/backlight support nodes for imx8mm_evk board.
Align with u-boot dts
References:
- https://patchwork.ozlabs.org/project/uboot/patch/20220326111911.13720-9-tommaso.merciai@amarulasolutions.com/
Signed-off-by: Tommaso Merciai <tommaso.merciai@amarulasolutions.com>
---
Changes since v1:
- Fix commit body
- Enable pwm, backlight
Changes since v2:
- Remove status okay from pwm1,backlight (enable as default)
Changes since v3:
- Remove status okay only from backlight (enable as default), pwm1 is disabled
on imx8mm.dtsi, we need to enable it
arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi | 20 +++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi
index 6d67df7692f1..6a209395452a 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi
@@ -59,6 +59,14 @@ reg_usdhc2_vmmc: regulator-usdhc2 {
enable-active-high;
};
+ backlight: backlight {
+ compatible = "pwm-backlight";
+ pwms = <&pwm1 0 5000000>;
+ brightness-levels = <0 255>;
+ num-interpolated-steps = <255>;
+ default-brightness-level = <250>;
+ };
+
ir-receiver {
compatible = "gpio-ir-receiver";
gpios = <&gpio1 13 GPIO_ACTIVE_LOW>;
@@ -395,6 +403,12 @@ &wdog1 {
status = "okay";
};
+&pwm1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_backlight>;
+ status = "okay";
+};
+
&iomuxc {
pinctrl_fec1: fec1grp {
fsl,pins = <
@@ -549,4 +563,10 @@ pinctrl_wdog: wdoggrp {
MX8MM_IOMUXC_GPIO1_IO02_WDOG1_WDOG_B 0x166
>;
};
+
+ pinctrl_backlight: backlightgrp {
+ fsl,pins = <
+ MX8MM_IOMUXC_GPIO1_IO01_PWM1_OUT 0x06
+ >;
+ };
};
--
2.25.1
^ permalink raw reply related [flat|nested] 4+ messages in thread
* [PATCH v4] arm64: dts: imx8mm-evk: add pwm1/backlight support
@ 2022-04-13 21:33 ` Tommaso Merciai
0 siblings, 0 replies; 4+ messages in thread
From: Tommaso Merciai @ 2022-04-13 21:33 UTC (permalink / raw)
Cc: tommaso.merciai, linux-amarula, Rob Herring, Krzysztof Kozlowski,
Shawn Guo, Sascha Hauer, Pengutronix Kernel Team, Fabio Estevam,
NXP Linux Team, Joakim Zhang, Li Jun, Richard Zhu, devicetree,
linux-arm-kernel, linux-kernel
Add pwm1/backlight support nodes for imx8mm_evk board.
Align with u-boot dts
References:
- https://patchwork.ozlabs.org/project/uboot/patch/20220326111911.13720-9-tommaso.merciai@amarulasolutions.com/
Signed-off-by: Tommaso Merciai <tommaso.merciai@amarulasolutions.com>
---
Changes since v1:
- Fix commit body
- Enable pwm, backlight
Changes since v2:
- Remove status okay from pwm1,backlight (enable as default)
Changes since v3:
- Remove status okay only from backlight (enable as default), pwm1 is disabled
on imx8mm.dtsi, we need to enable it
arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi | 20 +++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi
index 6d67df7692f1..6a209395452a 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi
@@ -59,6 +59,14 @@ reg_usdhc2_vmmc: regulator-usdhc2 {
enable-active-high;
};
+ backlight: backlight {
+ compatible = "pwm-backlight";
+ pwms = <&pwm1 0 5000000>;
+ brightness-levels = <0 255>;
+ num-interpolated-steps = <255>;
+ default-brightness-level = <250>;
+ };
+
ir-receiver {
compatible = "gpio-ir-receiver";
gpios = <&gpio1 13 GPIO_ACTIVE_LOW>;
@@ -395,6 +403,12 @@ &wdog1 {
status = "okay";
};
+&pwm1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_backlight>;
+ status = "okay";
+};
+
&iomuxc {
pinctrl_fec1: fec1grp {
fsl,pins = <
@@ -549,4 +563,10 @@ pinctrl_wdog: wdoggrp {
MX8MM_IOMUXC_GPIO1_IO02_WDOG1_WDOG_B 0x166
>;
};
+
+ pinctrl_backlight: backlightgrp {
+ fsl,pins = <
+ MX8MM_IOMUXC_GPIO1_IO01_PWM1_OUT 0x06
+ >;
+ };
};
--
2.25.1
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH v4] arm64: dts: imx8mm-evk: add pwm1/backlight support
2022-04-13 21:33 ` Tommaso Merciai
@ 2022-04-18 12:12 ` Shawn Guo
-1 siblings, 0 replies; 4+ messages in thread
From: Shawn Guo @ 2022-04-18 12:12 UTC (permalink / raw)
To: Tommaso Merciai
Cc: linux-amarula, Rob Herring, Krzysztof Kozlowski, Sascha Hauer,
Pengutronix Kernel Team, Fabio Estevam, NXP Linux Team,
Joakim Zhang, Li Jun, Richard Zhu, devicetree, linux-arm-kernel,
linux-kernel
On Wed, Apr 13, 2022 at 11:33:11PM +0200, Tommaso Merciai wrote:
> Add pwm1/backlight support nodes for imx8mm_evk board.
> Align with u-boot dts
>
> References:
> - https://patchwork.ozlabs.org/project/uboot/patch/20220326111911.13720-9-tommaso.merciai@amarulasolutions.com/
>
> Signed-off-by: Tommaso Merciai <tommaso.merciai@amarulasolutions.com>
Applied, thanks!
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH v4] arm64: dts: imx8mm-evk: add pwm1/backlight support
@ 2022-04-18 12:12 ` Shawn Guo
0 siblings, 0 replies; 4+ messages in thread
From: Shawn Guo @ 2022-04-18 12:12 UTC (permalink / raw)
To: Tommaso Merciai
Cc: linux-amarula, Rob Herring, Krzysztof Kozlowski, Sascha Hauer,
Pengutronix Kernel Team, Fabio Estevam, NXP Linux Team,
Joakim Zhang, Li Jun, Richard Zhu, devicetree, linux-arm-kernel,
linux-kernel
On Wed, Apr 13, 2022 at 11:33:11PM +0200, Tommaso Merciai wrote:
> Add pwm1/backlight support nodes for imx8mm_evk board.
> Align with u-boot dts
>
> References:
> - https://patchwork.ozlabs.org/project/uboot/patch/20220326111911.13720-9-tommaso.merciai@amarulasolutions.com/
>
> Signed-off-by: Tommaso Merciai <tommaso.merciai@amarulasolutions.com>
Applied, thanks!
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2022-04-18 12:13 UTC | newest]
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2022-04-13 21:33 [PATCH v4] arm64: dts: imx8mm-evk: add pwm1/backlight support Tommaso Merciai
2022-04-13 21:33 ` Tommaso Merciai
2022-04-18 12:12 ` Shawn Guo
2022-04-18 12:12 ` Shawn Guo
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