From: Xingyu Chen <[email protected]> Add the DT info for SAR ADC of the Amlogic's Meson-AXG SoC.
Signed-off-by: Xingyu Chen <[email protected]> Signed-off-by: Yixun Lan <[email protected]> --- Hi Kevin: Please note, the saradc driver in Meson-AXG platfrom actually depend on the AO clock driver [0] & saradc patch itself [1]. And I've rebased this patch on top of your v4.17/dt64 branch [0] https://lkml.kernel.org/r/[email protected] [1] https://lkml.kernel.org/r/[email protected] Yixun --- arch/arm64/boot/dts/amlogic/meson-axg-s400.dts | 5 +++++ arch/arm64/boot/dts/amlogic/meson-axg.dtsi | 21 +++++++++++++++++++++ 2 files changed, 26 insertions(+) diff --git a/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts b/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts index 57eedced5a51..bbb88debbc04 100644 --- a/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts +++ b/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts @@ -47,3 +47,8 @@ pinctrl-0 = <&i2c1_z_pins>; pinctrl-names = "default"; }; + +&saradc { + status = "okay"; + vref-supply = <&vddio_ao18>; +}; diff --git a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi index 40ca49fb94a6..105884efc033 100644 --- a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi +++ b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi @@ -818,6 +818,27 @@ interrupts = <GIC_SPI 196 IRQ_TYPE_EDGE_RISING>; status = "disabled"; }; + + saradc: adc@9000 { + compatible = "amlogic,meson-axg-saradc", + "amlogic,meson-saradc"; + reg = <0x0 0x9000 0x0 0x38>; + #io-channel-cells = <1>; + interrupts = <GIC_SPI 73 IRQ_TYPE_EDGE_RISING>; + clocks = <&xtal>, + <&clkc_AO CLKID_AO_SAR_ADC>, + <&clkc_AO CLKID_AO_SAR_ADC_CLK>, + <&clkc_AO CLKID_AO_SAR_ADC_SEL>; + clock-names = "clkin", "core", "adc_clk", "adc_sel"; + status = "disabled"; + }; }; }; + + vddio_ao18: regulator-vddio_ao18 { + compatible = "regulator-fixed"; + regulator-name = "VDDIO_AO18"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + }; }; -- 2.15.1
