Thread (34 messages) flat view 34 messages, 5 authors, 2021-06-18

Re: [PATCH 01/27] arm64: dts: mt8195: add infracfg_rst node

From: Chen-Yu Tsai <wenst@chromium.org>
Date: 2021-06-16 08:02:06
Also in: linux-devicetree, linux-mediatek, lkml

Hi,

On Wed, Jun 16, 2021 at 01:32:08AM +0800, Tinghan Shen wrote:
quoted hunk ↗ jump to hunk
From: Crystal Guo <redacted>

add infracfg_rst node which is for MT8195 platform

Signed-off-by: Crystal Guo <redacted>
---
 arch/arm64/boot/dts/mediatek/mt8195.dtsi | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
diff --git a/arch/arm64/boot/dts/mediatek/mt8195.dtsi b/arch/arm64/boot/dts/mediatek/mt8195.dtsi
index 629cd883facf..8cda62f736b3 100644
--- a/arch/arm64/boot/dts/mediatek/mt8195.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8195.dtsi
@@ -8,6 +8,7 @@
 
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/reset/ti-syscon.h>
 
 / {
 	compatible = "mediatek,mt8195";
@@ -273,6 +274,20 @@
 			};
 		};
 
+		infracfg: syscon@10001000 {
+			compatible = "mediatek,mt8195-infracfg", "syscon", "simple-mfd";
This block is named infracfg_ao in the datasheet. You seem to rename it
in the clock patch. Maybe you squashed the change into the wrong commit?
+			reg = <0 0x10001000 0 0x1000>;
The address range matches the datasheet.
+			#clock-cells = <1>;
+
+			infracfg_rst: reset-controller {
+				compatible = "ti,syscon-reset";
+				#reset-cells = <1>;
+				ti,reset-bits = <
+					0x140 26 0x144 26 0 0 (ASSERT_SET | DEASSERT_SET | STATUS_NONE)
+				>;
+			};
This node doesn't seem to be used anywhere. Is it really needed?


ChenYu

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