Thread (26 messages) 26 messages, 4 authors, 2020-09-29

Re: [v4,4/4] arm64: dts: mt8192: add infracfg_rst node

From: Crystal Guo <hidden>
Date: 2020-09-08 15:15:43
Also in: linux-devicetree, linux-mediatek, lkml

On Thu, 2020-09-03 at 07:29 +0800, Suman Anna wrote:
Hi Crystal,

On 8/16/20 10:03 PM, Crystal Guo wrote:
quoted
add infracfg_rst node which is for MT8192 platform

Signed-off-by: Crystal Guo <redacted>
I understand you are posting these together for complete reference, but driver
subsystem maintainers typically don't pick dts patches. In anycase, can you
clarify if your registers are self-clearing registers?

regards
Suman
Hi Suman,

Thanks for your reply.
Our reset registers are not self-clearing, it needs to set the clear bit
to 1 to clear the related bit.
And should I separate this dts patch from the patch sets?

regards
Crystal
quoted
---
 arch/arm64/boot/dts/mediatek/mt8192.dtsi | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/mediatek/mt8192.dtsi b/arch/arm64/boot/dts/mediatek/mt8192.dtsi
index 931e1ca17220..a0cb9904706b 100644
--- a/arch/arm64/boot/dts/mediatek/mt8192.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8192.dtsi
@@ -10,6 +10,7 @@
 #include <dt-bindings/interrupt-controller/irq.h>
 #include <dt-bindings/pinctrl/mt8192-pinfunc.h>
 #include <dt-bindings/power/mt8192-power.h>
+#include <dt-bindings/reset/ti-syscon.h>
 
 / {
 	compatible = "mediatek,mt8192";
@@ -219,9 +220,17 @@
 		};
 
 		infracfg: infracfg@10001000 {
-			compatible = "mediatek,mt8192-infracfg", "syscon";
+			compatible = "mediatek,mt8192-infracfg", "syscon", "simple-mfd";
 			reg = <0 0x10001000 0 0x1000>;
 			#clock-cells = <1>;
+
+			infracfg_rst: reset-controller {
+				compatible = "mediatek,infra-reset", "ti,syscon-reset";
+				#reset-cells = <1>;
+				ti,reset-bits = <
+					0x140 15 0x144 15 0 0 (ASSERT_SET | DEASSERT_SET | STATUS_NONE) /* 0: pcie */
+				>;
+			};
 		};
 
 		pericfg: pericfg@10003000 {
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help