From fad4e18fe4dccacf68418da01e98c4b8fb590023 Mon Sep 17 00:00:00 2001 From: Vignesh Raghavendra Date: Thu, 18 Mar 2021 17:04:43 +0530 Subject: [PATCH] arm64: dts: ti: k3-am64-main: Add ADC nodes AM64 SoC has a single ADC IP with 8 channels. Add DT node for the same. Default usecase is to control ADC from non Linux core on the system on AM642 GP EVM, therefore mark the node as reserved in k3-am642-evm.dts file. ADC lines are not pinned out on AM642 SK board, therefore disable the node in k3-am642-sk.dts file. Signed-off-by: Vignesh Raghavendra Signed-off-by: Nishanth Menon Reviewed-by: Lokesh Vutla Link: https://lore.kernel.org/r/20210318113443.20036-1-vigneshr@ti.com --- arch/arm64/boot/dts/ti/k3-am64-main.dtsi | 17 +++++++++++++++++ arch/arm64/boot/dts/ti/k3-am642-evm.dts | 5 +++++ arch/arm64/boot/dts/ti/k3-am642-sk.dts | 4 ++++ 3 files changed, 26 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi index 7e7997e3adff8..dc852f63d1a2f 100644 --- a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi @@ -521,4 +521,21 @@ dr_mode = "otg"; }; }; + + tscadc0: tscadc@28001000 { + compatible = "ti,am654-tscadc", "ti,am3359-tscadc"; + reg = <0x00 0x28001000 0x00 0x1000>; + interrupts = ; + power-domains = <&k3_pds 0 TI_SCI_PD_EXCLUSIVE>; + clocks = <&k3_clks 0 0>; + assigned-clocks = <&k3_clks 0 0>; + assigned-clock-parents = <&k3_clks 0 3>; + assigned-clock-rates = <60000000>; + clock-names = "adc_tsc_fck"; + + adc { + #io-channel-cells = <1>; + compatible = "ti,am654-adc", "ti,am3359-adc"; + }; + }; }; diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm.dts b/arch/arm64/boot/dts/ti/k3-am642-evm.dts index 1365e31642944..6331fd426157f 100644 --- a/arch/arm64/boot/dts/ti/k3-am642-evm.dts +++ b/arch/arm64/boot/dts/ti/k3-am642-evm.dts @@ -377,3 +377,8 @@ ti,fifo-depth = ; }; }; + +&tscadc0 { + /* ADC is reserved for R5 usage */ + status = "reserved"; +}; diff --git a/arch/arm64/boot/dts/ti/k3-am642-sk.dts b/arch/arm64/boot/dts/ti/k3-am642-sk.dts index 397ed3b2e121e..8f9b1078b7b5c 100644 --- a/arch/arm64/boot/dts/ti/k3-am642-sk.dts +++ b/arch/arm64/boot/dts/ti/k3-am642-sk.dts @@ -244,3 +244,7 @@ ti,fifo-depth = ; }; }; + +&tscadc0 { + status = "disabled"; +}; -- 2.30.2