[PATCH 39/40] ARM: dts: am43xx: Describe the magnetic reader/ADC1 hardware module
From: Miquel Raynal <miquel.raynal@bootlin.com>
Date: 2021-08-25 15:35:06
Also in:
linux-clk, linux-devicetree, linux-iio, linux-omap
Subsystem:
the rest · Maintainer:
Linus Torvalds
This hardware module is close to the am33xx ADC module but instead of featuring a touchscreen it has a magnetic reader capability. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> --- arch/arm/boot/dts/am437x-l4.dtsi | 31 ++++++++++++++++++++++++++-- arch/arm/boot/dts/am43xx-clocks.dtsi | 7 +++++++ 2 files changed, 36 insertions(+), 2 deletions(-)
diff --git a/arch/arm/boot/dts/am437x-l4.dtsi b/arch/arm/boot/dts/am437x-l4.dtsi
index 40ef3973f2a9..cc01b4e83955 100644
--- a/arch/arm/boot/dts/am437x-l4.dtsi
+++ b/arch/arm/boot/dts/am437x-l4.dtsi@@ -2378,11 +2378,38 @@ hdq: hdq@0 { }; target-module@4c000 { /* 0x4834c000, ap 114 72.0 */ - compatible = "ti,sysc"; - status = "disabled"; + compatible = "ti,sysc-omap4", "ti,sysc"; + reg = <0x4c000 0x4>, + <0x4c010 0x4>; + reg-names = "rev", "sysc"; + ti,sysc-sidle = <SYSC_IDLE_FORCE>, + <SYSC_IDLE_NO>, + <SYSC_IDLE_SMART>; + clocks = <&l3s_clkctrl AM4_L3S_ADC1_CLKCTRL 0>; + clock-names = "fck"; #address-cells = <1>; #size-cells = <1>; ranges = <0x0 0x4c000 0x2000>; + + magadc: magadc@0 { + compatible = "ti,am4372-magadc"; + reg = <0x0 0x2000>; + interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&adc_mag_fck>; + clock-names = "fck"; + dmas = <&edma 54 0>, <&edma 55 0>;; + dma-names = "fifo0", "fifo1"; + status = "disabled"; + + mag { + compatible = "ti,am4372-mag"; + }; + + adc { + #io-channel-cells = <1>; + compatible ="ti,am4372-adc"; + }; + }; }; target-module@80000 { /* 0x48380000, ap 123 42.0 */
diff --git a/arch/arm/boot/dts/am43xx-clocks.dtsi b/arch/arm/boot/dts/am43xx-clocks.dtsi
index 314fc5975acb..66e892fa3398 100644
--- a/arch/arm/boot/dts/am43xx-clocks.dtsi
+++ b/arch/arm/boot/dts/am43xx-clocks.dtsi@@ -444,6 +444,13 @@ wdt1_fck: wdt1_fck@422c { reg = <0x422c>; }; + adc_mag_fck: adc_mag_fck@424c { + #clock-cells = <0>; + compatible = "ti,mux-clock"; + clocks = <&sys_clkin_ck>, <&dpll_per_m2_ck>; + reg = <0x424c>; + }; + l3_gclk: l3_gclk { #clock-cells = <0>; compatible = "fixed-factor-clock";
--
2.27.0