Re: [PATCH v3 1/2] dt-bindings: cpufreq: qcom-hw: Document Shikra CPUFREQ Hardware
From: Imran Shaik
Date: Fri May 22 2026 - 05:36:37 EST
On 22-05-2026 12:04 pm, Krzysztof Kozlowski wrote:
On Thu, May 21, 2026 at 07:36:04PM +0530, Imran Shaik wrote:
The Qualcomm Shikra cpufreq hardware is functionally identical to EPSS,
but supports only up to 12 frequency lookup table (LUT) entries. Introduce
Shikra specific bindings to represent this constrained EPSS variant.
Signed-off-by: Imran Shaik <imran.shaik@xxxxxxxxxxxxxxxx>
---
.../bindings/cpufreq/qcom,shikra-epss.yaml | 96 ++++++++++++++++++++++
1 file changed, 96 insertions(+)
diff --git a/Documentation/devicetree/bindings/cpufreq/qcom,shikra-epss.yaml b/Documentation/devicetree/bindings/cpufreq/qcom,shikra-epss.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..8543fd00d82acdbb3422bde462417118aa4c49d1
--- /dev/null
+++ b/Documentation/devicetree/bindings/cpufreq/qcom,shikra-epss.yaml
@@ -0,0 +1,96 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/cpufreq/qcom,shikra-epss.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: CPUFREQ HW for Qualcomm Shikra SoC
Qualcomm Shikra SoC EPSS
+
+maintainers:
+ - Imran Shaik <imran.shaik@xxxxxxxxxxxxxxxx>
+ - Taniya Das <taniya.das@xxxxxxxxxxxxxxxx>
+
+description: |
+ CPUFREQ HW is a hardware engine used by some Qualcomm SoCs to manage
EPSS is a ....
+ frequency in hardware. It is capable of controlling frequency for
+ multiple clusters.
+
+ The Qualcomm Shikra CPUFREQ HW supports up to 12 frequency lookup table
here as well, like I mentioned last time. cpufreq is linuxism and I
asked you about name of actual device.
Sure, will drop CPUFREQ and use EPSS as you mentioned, and post next series.
Thanks,
Imran
With above:
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxxxxx>
Best regards,
Krzysztof