[PATCH v2 04/14] dt-bindings: clock: exynos8855: add hsi clock definitions
From: Raghav Sharma
Date: Fri Oct 09 2026 - 07:53:17 EST
Add device tree clock binding definitions for CMU_HSI
Signed-off-by: Raghav Sharma <raghav.s@xxxxxxxxxxx>
---
.../clock/samsung,exynos8855-clock.yaml | 21 +++++++++++++++++++
.../dt-bindings/clock/samsung,exynos8855.h | 8 +++++++
2 files changed, 29 insertions(+)
diff --git a/Documentation/devicetree/bindings/clock/samsung,exynos8855-clock.yaml b/Documentation/devicetree/bindings/clock/samsung,exynos8855-clock.yaml
index 62277c67fec1..e97b65f8be5f 100644
--- a/Documentation/devicetree/bindings/clock/samsung,exynos8855-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/samsung,exynos8855-clock.yaml
@@ -28,6 +28,7 @@ description: |
properties:
compatible:
enum:
+ - samsung,exynos8855-cmu-hsi
- samsung,exynos8855-cmu-peric
- samsung,exynos8855-cmu-peris
- samsung,exynos8855-cmu-top
@@ -47,6 +48,26 @@ properties:
maxItems: 1
allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: samsung,exynos8855-cmu-hsi
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (76.8 MHz)
+ - description: CMU_HSI NOC clock (from CMU_TOP)
+ - description: CMU_HSI UFS_EMBD clock (from CMU_TOP)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: bus
+ - const: ufs_embd
+
- if:
properties:
compatible:
diff --git a/include/dt-bindings/clock/samsung,exynos8855.h b/include/dt-bindings/clock/samsung,exynos8855.h
index 5d8b38a744b5..67cd97d8fab8 100644
--- a/include/dt-bindings/clock/samsung,exynos8855.h
+++ b/include/dt-bindings/clock/samsung,exynos8855.h
@@ -214,4 +214,12 @@
#define CLK_GOUT_WDT0_PERIS 8
#define CLK_GOUT_WDT1_PERIS 9
+/* CMU_HSI */
+#define CLK_MOUT_HSI_NOC_USER 1
+#define CLK_MOUT_HSI_UFS_EMBD_USER 2
+#define CLK_GOUT_CMU_HSI 3
+#define CLK_GOUT_SYSREG_HSI 4
+#define CLK_GOUT_UFS_EMBD_ACLK_HSI 5
+#define CLK_GOUT_UFS_EMBD_UNIPRO_HSI 6
+
#endif /* _DT_BINDINGS_CLOCK_EXYNOS8855_H */
--
2.34.1