clk: renesas: rcar-gen3: Add dummy SDnH clock

Currently, SDnH is handled together with SDn. This caused lots of
problems, so we want SDnH as a separate clock. Introduce a dummy SDnH
type here which creates a fixed-factor clock with factor 1. That allows
us to convert the per-SoC CPG drivers while keeping the old behaviour
for now. A later patch then will add the proper functionality.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20211110191610.5664-2-wsa+renesas@sang-engineering.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/clk/renesas/rcar-cpg-lib.h b/drivers/clk/renesas/rcar-cpg-lib.h
index 35c0217c2f8b..d001722ec13f 100644
--- a/drivers/clk/renesas/rcar-cpg-lib.h
+++ b/drivers/clk/renesas/rcar-cpg-lib.h
@@ -26,6 +26,10 @@ void cpg_simple_notifier_register(struct raw_notifier_head *notifiers,
 
 void cpg_reg_modify(void __iomem *reg, u32 clear, u32 set);
 
+struct clk * __init cpg_sdh_clk_register(const char *name,
+	void __iomem *sdnckcr, const char *parent_name,
+	struct raw_notifier_head *notifiers);
+
 struct clk * __init cpg_sd_clk_register(const char *name,
 	void __iomem *base, unsigned int offset, const char *parent_name,
 	struct raw_notifier_head *notifiers, bool skip_first);