All supported GXBB devices have their system LED connected to GPIOAO_13.
This pin can be driven by the PWM_AO controller (PWM_AO_B). Use the
pwm-leds driver (instead of gpio-leds) for these LEDs instead to enable
dimming (setting the brightness).
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@xxxxxxxxxxxxxx>
---
.../boot/dts/amlogic/meson-gxbb-nexbox-a95x.dts | 18 +++++++++++----
.../arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts | 16 ++++++++++---
.../boot/dts/amlogic/meson-gxbb-vega-s95.dtsi | 17 ++++++++++----
.../boot/dts/amlogic/meson-gxbb-wetek-hub.dts | 19 +++++++++++----
.../boot/dts/amlogic/meson-gxbb-wetek-play2.dts | 27 ++++++++++++++++------
5 files changed, 74 insertions(+), 23 deletions(-)
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-nexbox-a95x.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-nexbox-a95x.dts
index dbfa441f479e..283dad3b0be3 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-nexbox-a95x.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-nexbox-a95x.dts
@@ -65,12 +65,14 @@
reg = <0x0 0x0 0x0 0x40000000>;
};
- leds {
- compatible = "gpio-leds";
+ pwmleds {
+ compatible = "pwm-leds";
+
blue {
label = "a95x:system-status";
- gpios = <&gpio_ao GPIOAO_13 GPIO_ACTIVE_LOW>;
- linux,default-trigger = "heartbeat";
+ pwms = <&pwm_AO_ab 1 7812500 0>;
+ max-brightness = <255>;
+ linux,default-trigger = "default-on";
default-state = "off";
};
};
@@ -249,6 +251,14 @@
vqmmc-supply = <&vddio_boot>;
};
+&pwm_AO_ab {
+ status = "okay";
+ pinctrl-0 = <&pwm_ao_b_pins>;
+ pinctrl-names = "default";
+ clocks = <&clkc CLKID_FCLK_DIV4>;
+ clock-names = "clkin0";
+};
+
&pwm_ef {
status = "okay";
pinctrl-0 = <&pwm_e_pins>;
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
index c80d3a913907..7f9de1b236ed 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
@@ -76,11 +76,13 @@
enable-active-high;
};
- leds {
- compatible = "gpio-leds";
+ pwmleds {
+ compatible = "pwm-leds";
+
blue {
label = "c2:blue:alive";
- gpios = <&gpio_ao GPIOAO_13 GPIO_ACTIVE_LOW>;
+ pwms = <&pwm_AO_ab 1 7812500 0>;
+ max-brightness = <255>;
linux,default-trigger = "heartbeat";
default-state = "off";
};
@@ -201,6 +203,14 @@
status = "okay";
};
+&pwm_AO_ab {
+ status = "okay";
+ pinctrl-0 = <&pwm_ao_b_pins>;
+ pinctrl-names = "default";
+ clocks = <&clkc CLKID_FCLK_DIV4>;
+ clock-names = "clkin0";
+};
+
/* SD */
&sd_emmc_b {
status = "okay";
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-vega-s95.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxbb-vega-s95.dtsi
index aefa66dff72d..6b9608e5a488 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-vega-s95.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-vega-s95.dtsi
@@ -53,13 +53,14 @@
stdout-path = "serial0:115200n8";
};
- leds {
- compatible = "gpio-leds";
+ pwmleds {
+ compatible = "pwm-leds";
blue {
label = "vega-s95:blue:on";
- gpios = <&gpio_ao GPIOAO_13 GPIO_ACTIVE_HIGH>;
- default-state = "on";
+ pwms = <&pwm_AO_ab 1 7812500 0>;
+ max-brightness = <255>;
+ linux,default-trigger = "default-on";
panic-indicator;
};
};
@@ -229,6 +230,14 @@
vmmcq-sumpply = <&vcc_1v8>;
};
+&pwm_AO_ab {
+ status = "okay";
+ pinctrl-0 = <&pwm_ao_b_pins>;
+ pinctrl-names = "default";
+ clocks = <&clkc CLKID_FCLK_DIV4>;
+ clock-names = "clkin0";
+};
+
&pwm_ef {
status = "okay";
pinctrl-0 = <&pwm_e_pins>;
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek-hub.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek-hub.dts
index f057fb48fee5..1d94e2d4c927 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek-hub.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek-hub.dts
@@ -49,13 +49,14 @@
compatible = "wetek,hub", "amlogic,meson-gxbb";
model = "WeTek Hub";
- leds {
- compatible = "gpio-leds";
+ pwmleds {
+ compatible = "pwm-leds";
system {
- label = "wetek-play:system-status";
- gpios = <&gpio_ao GPIOAO_13 GPIO_ACTIVE_HIGH>;
- default-state = "on";
+ label = "wetek-hub:system-status";
+ pwms = <&pwm_AO_ab 1 7812500 0>;
+ max-brightness = <255>;
+ linux,default-trigger = "default-on";
panic-indicator;
};
};
@@ -90,3 +91,11 @@
};
};
};
+
+&pwm_AO_ab {
+ status = "okay";
+ pinctrl-0 = <&pwm_ao_b_pins>;
+ pinctrl-names = "default";
+ clocks = <&clkc CLKID_FCLK_DIV4>;
+ clock-names = "clkin0";
+};
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek-play2.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek-play2.dts
index 743acb5f5d06..5114d645d733 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek-play2.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek-play2.dts
@@ -53,13 +53,6 @@
leds {
compatible = "gpio-leds";
- system {
- label = "wetek-play:system-status";
- gpios = <&gpio_ao GPIOAO_13 GPIO_ACTIVE_HIGH>;
- default-state = "on";
- panic-indicator;
- };
-
wifi {
label = "wetek-play:wifi-status";
gpios = <&gpio GPIODV_26 GPIO_ACTIVE_HIGH>;
@@ -73,6 +66,18 @@
};
};
+ pwmleds {
+ compatible = "pwm-leds";
+
+ system {
+ label = "wetek-play:system-status";
+ pwms = <&pwm_AO_ab 1 7812500 0>;
+ max-brightness = <255>;
+ linux,default-trigger = "default-on";
+ panic-indicator;
+ };
+ };
+
gpio-keys-polled {
compatible = "gpio-keys-polled";
#address-cells = <1>;
@@ -118,3 +123,11 @@
pinctrl-0 = <&i2c_a_pins>;
pinctrl-names = "default";
};
+
+&pwm_AO_ab {
+ status = "okay";
+ pinctrl-0 = <&pwm_ao_b_pins>;
+ pinctrl-names = "default";
+ clocks = <&clkc CLKID_FCLK_DIV4>;
+ clock-names = "clkin0";
+};
--
2.12.0
--
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