linux-kernel - [PATCH v3 1/3] dt-bindings: clock: fix C3 PLL input parameter

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20240823-c3_add_node-v3-1-3648376037f4@amlogic.com>
Date: Fri, 23 Aug 2024 10:29:17 +0800
From: Xianwei Zhao via B4 Relay <devnull+xianwei.zhao.amlogic.com@...nel.org>
To: Neil Armstrong <neil.armstrong@...aro.org>, 
 Jerome Brunet <jbrunet@...libre.com>, 
 Michael Turquette <mturquette@...libre.com>, 
 Stephen Boyd <sboyd@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Chuan Liu <chuan.liu@...ogic.com>, 
 Kevin Hilman <khilman@...libre.com>, 
 Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>, 
 linux-amlogic@...ts.infradead.org, linux-clk@...r.kernel.org, 
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-arm-kernel@...ts.infradead.org, 
 Xianwei Zhao <xianwei.zhao@...ogic.com>
Subject: [PATCH v3 1/3] dt-bindings: clock: fix C3 PLL input parameter

From: Xianwei Zhao <xianwei.zhao@...ogic.com>

Add C3 PLL controller input clock parameters "fix".

The clock named "fix" was initially implemented in PLL clock controller driver.
However, some registers required secure zone access, so we moved it to
the secure zone (BL31) and accessed it through SCMI. Since the PLL clock
driver needs to use this clock, the "fix" clock is used as an input source.
We updated the driver but forgot to modify the binding accordingly,
so we are adding it here.

It is an ABI break but on a new and immature platform.
Noboby could really use that platform at this stage, so nothing is going
to break on anyone really.

Fixes: 0e6be855a96d ("dt-bindings: clock: add Amlogic C3 PLL clock controller")
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Signed-off-by: Xianwei Zhao <xianwei.zhao@...ogic.com>
---
 Documentation/devicetree/bindings/clock/amlogic,c3-pll-clkc.yaml | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/clock/amlogic,c3-pll-clkc.yaml b/Documentation/devicetree/bindings/clock/amlogic,c3-pll-clkc.yaml
index 43de3c6fc1cf..700865cc9792 100644
--- a/Documentation/devicetree/bindings/clock/amlogic,c3-pll-clkc.yaml
+++ b/Documentation/devicetree/bindings/clock/amlogic,c3-pll-clkc.yaml
@@ -24,11 +24,13 @@ properties:
     items:
       - description: input top pll
       - description: input mclk pll
+      - description: input fix pll
 
   clock-names:
     items:
       - const: top
       - const: mclk
+      - const: fix
 
   "#clock-cells":
     const: 1
@@ -52,8 +54,9 @@ examples:
             compatible = "amlogic,c3-pll-clkc";
             reg = <0x0 0x8000 0x0 0x1a4>;
             clocks = <&scmi_clk 2>,
-                     <&scmi_clk 5>;
-            clock-names = "top", "mclk";
+                     <&scmi_clk 5>,
+                     <&scmi_clk 12>;
+            clock-names = "top", "mclk", "fix";
             #clock-cells = <1>;
         };
     };

-- 
2.37.1