diff mbox series

[1/4] dt-bindings: cpufreq: cpufreq-qcom-hw: Add compatible for SM8250/8350

Message ID 1627581885-32165-2-git-send-email-sibis@codeaurora.org (mailing list archive)
State Not Applicable, archived
Headers show
Series Fixup register offsets to support per core L3 DCVS | expand

Commit Message

Sibi Sankar July 29, 2021, 6:04 p.m. UTC
Re-arranging the register regions to support per core L3 DCVS would lead
to bindings breakage when using an older dt with a newer kernel. So,
document the EPSS compatible for SM8250/SM8350 SoCs and use them in the
CPUFreq-hw driver to prevent such breakages.

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
---
 Documentation/devicetree/bindings/cpufreq/cpufreq-qcom-hw.txt | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

Comments

Rob Herring (Arm) Aug. 3, 2021, 7:23 p.m. UTC | #1
On Thu, 29 Jul 2021 23:34:42 +0530, Sibi Sankar wrote:
> Re-arranging the register regions to support per core L3 DCVS would lead
> to bindings breakage when using an older dt with a newer kernel. So,
> document the EPSS compatible for SM8250/SM8350 SoCs and use them in the
> CPUFreq-hw driver to prevent such breakages.
> 
> Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
> ---
>  Documentation/devicetree/bindings/cpufreq/cpufreq-qcom-hw.txt | 6 +++++-
>  1 file changed, 5 insertions(+), 1 deletion(-)
> 

Acked-by: Rob Herring <robh@kernel.org>
Stephen Boyd Aug. 4, 2021, 6:56 p.m. UTC | #2
Quoting Sibi Sankar (2021-07-29 11:04:42)
> Re-arranging the register regions to support per core L3 DCVS would lead
> to bindings breakage when using an older dt with a newer kernel. So,
> document the EPSS compatible for SM8250/SM8350 SoCs and use them in the
> CPUFreq-hw driver to prevent such breakages.
>
> Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
> ---

Reviewed-by: Stephen Boyd <swboyd@chromium.org>
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/cpufreq/cpufreq-qcom-hw.txt b/Documentation/devicetree/bindings/cpufreq/cpufreq-qcom-hw.txt
index 9299028ee712..ee52fd8d3c9a 100644
--- a/Documentation/devicetree/bindings/cpufreq/cpufreq-qcom-hw.txt
+++ b/Documentation/devicetree/bindings/cpufreq/cpufreq-qcom-hw.txt
@@ -8,7 +8,11 @@  Properties:
 - compatible
 	Usage:		required
 	Value type:	<string>
-	Definition:	must be "qcom,cpufreq-hw" or "qcom,cpufreq-epss".
+	Definition:	must be one of:
+			"qcom,cpufreq-epss"
+			"qcom,cpufreq-hw"
+			"qcom,sm8250-cpufreq-epss"
+			"qcom,sm8350-cpufreq-epss"
 
 - clocks
 	Usage:		required