dt-bindings: clock: exynos850: Add Exynos850 CMU_IS

CMU_IS generates CSIS, IPP, ITP, VRA and GDC clocks for BLK_IS. Add
clock indices and bindings documentation for CMU_IS domain.

Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220809113323.29965-3-semen.protsenko@linaro.org

Author: Sam Protsenko

Documentation/devicetree/bindings/clock/samsung,exynos850-clock.yaml

@@ -38,6 +38,7 @@ properties:
       - samsung,exynos850-cmu-core
       - samsung,exynos850-cmu-dpu
       - samsung,exynos850-cmu-hsi
+      - samsung,exynos850-cmu-is
       - samsung,exynos850-cmu-peri
 
   clocks:
@@ -191,6 +192,30 @@ allOf:
             - const: dout_hsi_mmc_card
             - const: dout_hsi_usb20drd
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: samsung,exynos850-cmu-is
+
+    then:
+      properties:
+        clocks:
+          items:
+            - description: External reference clock (26 MHz)
+            - description: CMU_IS bus clock (from CMU_TOP)
+            - description: Image Texture Processing core clock (from CMU_TOP)
+            - description: Visual Recognition Accelerator clock (from CMU_TOP)
+            - description: Geometric Distortion Correction clock (from CMU_TOP)
+
+        clock-names:
+          items:
+            - const: oscclk
+            - const: dout_is_bus
+            - const: dout_is_itp
+            - const: dout_is_vra
+            - const: dout_is_gdc
+
   - if:
       properties:
         compatible:

include/dt-bindings/clock/exynos850.h

@@ -61,7 +61,19 @@
 #define CLK_MOUT_AUD			49
 #define CLK_GOUT_AUD			50
 #define CLK_DOUT_AUD			51
-#define TOP_NR_CLK			52
+#define CLK_MOUT_IS_BUS			52
+#define CLK_MOUT_IS_ITP			53
+#define CLK_MOUT_IS_VRA			54
+#define CLK_MOUT_IS_GDC			55
+#define CLK_GOUT_IS_BUS			56
+#define CLK_GOUT_IS_ITP			57
+#define CLK_GOUT_IS_VRA			58
+#define CLK_GOUT_IS_GDC			59
+#define CLK_DOUT_IS_BUS			60
+#define CLK_DOUT_IS_ITP			61
+#define CLK_DOUT_IS_VRA			62
+#define CLK_DOUT_IS_GDC			63
+#define TOP_NR_CLK			64
 
 /* CMU_APM */
 #define CLK_RCO_I3C_PMIC		1
@@ -187,6 +199,32 @@
 #define CLK_GOUT_SYSREG_HSI_PCLK	13
 #define HSI_NR_CLK			14
 
+/* CMU_IS */
+#define CLK_MOUT_IS_BUS_USER		1
+#define CLK_MOUT_IS_ITP_USER		2
+#define CLK_MOUT_IS_VRA_USER		3
+#define CLK_MOUT_IS_GDC_USER		4
+#define CLK_DOUT_IS_BUSP		5
+#define CLK_GOUT_IS_CMU_IS_PCLK		6
+#define CLK_GOUT_IS_CSIS0_ACLK		7
+#define CLK_GOUT_IS_CSIS1_ACLK		8
+#define CLK_GOUT_IS_CSIS2_ACLK		9
+#define CLK_GOUT_IS_TZPC_PCLK		10
+#define CLK_GOUT_IS_CSIS_DMA_CLK	11
+#define CLK_GOUT_IS_GDC_CLK		12
+#define CLK_GOUT_IS_IPP_CLK		13
+#define CLK_GOUT_IS_ITP_CLK		14
+#define CLK_GOUT_IS_MCSC_CLK		15
+#define CLK_GOUT_IS_VRA_CLK		16
+#define CLK_GOUT_IS_PPMU_IS0_ACLK	17
+#define CLK_GOUT_IS_PPMU_IS0_PCLK	18
+#define CLK_GOUT_IS_PPMU_IS1_ACLK	19
+#define CLK_GOUT_IS_PPMU_IS1_PCLK	20
+#define CLK_GOUT_IS_SYSMMU_IS0_CLK	21
+#define CLK_GOUT_IS_SYSMMU_IS1_CLK	22
+#define CLK_GOUT_IS_SYSREG_PCLK		23
+#define IS_NR_CLK			24
+
 /* CMU_PERI */
 #define CLK_MOUT_PERI_BUS_USER		1
 #define CLK_MOUT_PERI_UART_USER		2