diff mbox series

[V11,5/5] ARM: dts: imx7ulp-evk: Add backlight support

Message ID 1554860547-18237-6-git-send-email-Anson.Huang@nxp.com (mailing list archive)
State New, archived
Headers show
Series Add i.MX7ULP EVK PWM backlight support | expand

Commit Message

Anson Huang April 10, 2019, 1:47 a.m. UTC
This patch adds i.MX7ULP EVK board MIPI-DSI backlight support.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
---
No changes.
---
 arch/arm/boot/dts/imx7ulp-evk.dts | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

Comments

Fabio Estevam April 10, 2019, 2:02 a.m. UTC | #1
On Tue, Apr 9, 2019 at 10:47 PM Anson Huang <anson.huang@nxp.com> wrote:

>  #include "imx7ulp.dtsi"
> +#include <dt-bindings/pwm/pwm.h>

This inclusion is not needed here as PWM_POLARITY_INVERTED is not used
in this dts.
Anson Huang April 10, 2019, 2:07 a.m. UTC | #2
Hi, Fabio

Best Regards!
Anson Huang

> -----Original Message-----
> From: Fabio Estevam [mailto:festevam@gmail.com]
> Sent: 2019年4月10日 10:03
> To: Anson Huang <anson.huang@nxp.com>
> Cc: thierry.reding@gmail.com; robh+dt@kernel.org; mark.rutland@arm.com;
> shawnguo@kernel.org; s.hauer@pengutronix.de; kernel@pengutronix.de;
> linux@armlinux.org.uk; stefan@agner.ch; otavio@ossystems.com.br;
> Leonard Crestez <leonard.crestez@nxp.com>; Robin Gong
> <yibin.gong@nxp.com>; u.kleine-koenig@pengutronix.de; linux-
> pwm@vger.kernel.org; devicetree@vger.kernel.org; linux-arm-
> kernel@lists.infradead.org; linux-kernel@vger.kernel.org; dl-linux-imx
> <linux-imx@nxp.com>
> Subject: [EXT] Re: [PATCH V11 5/5] ARM: dts: imx7ulp-evk: Add backlight
> support
> 
> WARNING: This email was created outside of NXP. DO NOT CLICK links or
> attachments unless you recognize the sender and know the content is safe.
> 
> 
> 
> On Tue, Apr 9, 2019 at 10:47 PM Anson Huang <anson.huang@nxp.com>
> wrote:
> 
> >  #include "imx7ulp.dtsi"
> > +#include <dt-bindings/pwm/pwm.h>
> 
> This inclusion is not needed here as PWM_POLARITY_INVERTED is not used
> in this dts.

Thanks for reminder, I will remove it later.

Anson.
diff mbox series

Patch

diff --git a/arch/arm/boot/dts/imx7ulp-evk.dts b/arch/arm/boot/dts/imx7ulp-evk.dts
index a09026a..94891c7 100644
--- a/arch/arm/boot/dts/imx7ulp-evk.dts
+++ b/arch/arm/boot/dts/imx7ulp-evk.dts
@@ -8,6 +8,7 @@ 
 /dts-v1/;
 
 #include "imx7ulp.dtsi"
+#include <dt-bindings/pwm/pwm.h>
 
 / {
 	model = "NXP i.MX7ULP EVK";
@@ -22,6 +23,14 @@ 
 		reg = <0x60000000 0x40000000>;
 	};
 
+	backlight {
+		compatible = "pwm-backlight";
+		pwms = <&tpm4 1 50000 0>;
+		brightness-levels = <0 20 25 30 35 40 100>;
+		default-brightness-level = <6>;
+		status = "okay";
+	};
+
 	reg_vsd_3v3: regulator-vsd-3v3 {
 		compatible = "regulator-fixed";
 		regulator-name = "VSD_3V3";
@@ -40,6 +49,12 @@ 
 	status = "okay";
 };
 
+&tpm4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_pwm0>;
+	status = "okay";
+};
+
 &usdhc0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_usdhc0>;
@@ -57,6 +72,12 @@ 
 		bias-pull-up;
 	};
 
+	pinctrl_pwm0: pwm0grp {
+		fsl,pins = <
+			IMX7ULP_PAD_PTF2__TPM4_CH1	0x2
+		>;
+	};
+
 	pinctrl_usdhc0: usdhc0grp {
 		fsl,pins = <
 			IMX7ULP_PAD_PTD1__SDHC0_CMD	0x43