[PATCH v7 1/6] clk: renesas: rzv2h-cpg: Add instance field to struct pll

Prabhakar prabhakar.csengg at gmail.com
Mon Jul 28 20:14:30 UTC 2025


From: Lad Prabhakar <prabhakar.mahadev-lad.rj at bp.renesas.com>

Add a two-bit "instance" member to struct pll and extend the PLL_PACK()
macro to accept an instance parameter.  Initialize all existing PLL
definitions with instance 0 to preserve legacy behavior. This change
enables support for SoCs with multiple PLL instances (for example,
RZ/G3E we have two PLL DSIs).

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj at bp.renesas.com>
---
v6->v7:
- New patch
---
 drivers/clk/renesas/rzv2h-cpg.h | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/clk/renesas/rzv2h-cpg.h b/drivers/clk/renesas/rzv2h-cpg.h
index 840eed25aeda..e2053049c299 100644
--- a/drivers/clk/renesas/rzv2h-cpg.h
+++ b/drivers/clk/renesas/rzv2h-cpg.h
@@ -16,20 +16,23 @@
  *
  * @offset: STBY register offset
  * @has_clkn: Flag to indicate if CLK1/2 are accessible or not
+ * @instance: PLL instance number
  */
 struct pll {
 	unsigned int offset:9;
 	unsigned int has_clkn:1;
+	unsigned int instance:2;
 };
 
-#define PLL_PACK(_offset, _has_clkn) \
+#define PLL_PACK(_offset, _has_clkn, _instance) \
 	((struct pll){ \
 		.offset = _offset, \
-		.has_clkn = _has_clkn \
+		.has_clkn = _has_clkn, \
+		.instance = _instance \
 	})
 
-#define PLLCA55		PLL_PACK(0x60, 1)
-#define PLLGPU		PLL_PACK(0x120, 1)
+#define PLLCA55		PLL_PACK(0x60, 1, 0)
+#define PLLGPU		PLL_PACK(0x120, 1, 0)
 
 /**
  * struct ddiv - Structure for dynamic switching divider
-- 
2.50.1



More information about the dri-devel mailing list