[PATCH v2 10/10] ARM: dts: imx50-kobo-aura: Add Netronix embedded controller
From: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Date: 2020-09-05 14:49:42
Also in:
linux-devicetree, linux-pwm, linux-rtc, lkml
Subsystem:
the rest · Maintainer:
Linus Torvalds
Enable the Netronix EC on the Kobo Aura ebook reader. Several features are still missing: - Frontlight/backlight. The vendor kernel drives the frontlight LED using the PWM output of the EC and an additional boost pin that increases the brightness. - Battery monitoring - Interrupts for RTC alarm and low-battery events Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> --- v2: - Fix pwm-cells property (should be 2, not 1) --- arch/arm/boot/dts/imx50-kobo-aura.dts | 27 ++++++++++++++++++++++++++- 1 file changed, 26 insertions(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/imx50-kobo-aura.dts b/arch/arm/boot/dts/imx50-kobo-aura.dts
index a0eaf869b9135..003a7d894902c 100644
--- a/arch/arm/boot/dts/imx50-kobo-aura.dts
+++ b/arch/arm/boot/dts/imx50-kobo-aura.dts@@ -6,6 +6,7 @@ /dts-v1/; #include "imx50.dtsi" #include <dt-bindings/input/input.h> +#include <dt-bindings/interrupt-controller/irq.h> / { model = "Kobo Aura (N514)";
@@ -135,10 +136,34 @@ &i2c3 { pinctrl-0 = <&pinctrl_i2c3>; status = "okay"; - /* TODO: embedded controller at 0x43 */ + embedded-controller@43 { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_ec>; + compatible = "netronix,ntxec"; + reg = <0x43>; + system-power-controller; + interrupts-extended = <&gpio4 11 IRQ_TYPE_EDGE_FALLING>; + interrupt-controller; + #interrupt-cells = <1>; + + ec_pwm: pwm { + compatible = "netronix,ntxec-pwm"; + #pwm-cells = <2>; + }; + + rtc { + compatible = "netronix,ntxec-rtc"; + }; + }; }; &iomuxc { + pinctrl_ec: ec { + fsl,pins = < + MX50_PAD_CSPI_SS0__GPIO4_11 0x0 /* INT */ + >; + }; + pinctrl_gpiokeys: gpiokeys { fsl,pins = < MX50_PAD_CSPI_MISO__GPIO4_10 0x0 --
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