Thread (39 messages) 39 messages, 3 authors, 2022-04-28

Re: [PATCH V3 12/17] dt-binding: mt8192: Add infra_ao reset bit

From: Rex-BC Chen <hidden>
Date: 2022-04-25 05:01:59
Also in: linux-clk, linux-devicetree, linux-mediatek, lkml

On Sat, 2022-04-23 at 18:28 +0800, Krzysztof Kozlowski wrote:
On 22/04/2022 08:01, Rex-BC Chen wrote:
quoted
To support reset of infra_ao, add the bit definition for
thermal/PCIe/SVS.

Signed-off-by: Rex-BC Chen <redacted>
---
 include/dt-bindings/reset/mt8192-resets.h | 10 ++++++++++
 1 file changed, 10 insertions(+)
diff --git a/include/dt-bindings/reset/mt8192-resets.h
b/include/dt-bindings/reset/mt8192-resets.h
index be9a7ca245b9..d5f3433175c1 100644
--- a/include/dt-bindings/reset/mt8192-resets.h
+++ b/include/dt-bindings/reset/mt8192-resets.h
@@ -27,4 +27,14 @@
 
 #define MT8192_TOPRGU_SW_RST_NUM				23
 
+/* INFRA RST0 */
+#define MT8192_INFRA_RST0_LVTS_AP_RST				
0
+/* INFRA RST2 */
+#define MT8192_INFRA_RST2_PCIE_PHY_RST				
15
+/* INFRA RST3 */
+#define MT8192_INFRA_RST3_PTP_RST				5
+/* INFRA RST4 */
+#define MT8192_INFRA_RST4_LVTS_MCU				12
+#define MT8192_INFRA_RST4_PCIE_TOP				1
These should be the IDs of reset, not some register values/offsets.
Therefore it is expected to have them incremented by 1.
Hello Krzysztof,

This is define bit.

There is serveral reset set for infra_ao while it's not serial.
For MT8192, it's 0x120/0x130/0x140/0x150/0x730.
We are implement #reset-cells = <2>, and we can use this reset drive
more easier.

For example, in dts, we can define
infra_ao: syscon {
	compatible = "mediatek,mt8192-infracfg", "syscon";
 	reg = <0 0x10001000 0 0x1000>;
 	#clock-cells = <1>;
	#reset-cells = <2>;
};

thermal {
	...
	resets = <&infra_ao 0x730 MT8192_INFRA_RST4_LVTS_MCU>;
	...
};

If it's acceptabel, I can update all bit difinition from 0 to 15 for
all reset set.

BRs,
Rex
quoted
+
 #endif  /* _DT_BINDINGS_RESET_CONTROLLER_MT8192 */

Best regards,
Krzysztof

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