[PATCH v4 1/2] clk: renesas: Handle CLK_TYPE_GEN4_MDSEL in gen3_clk_get_rate64()

[Shmuel Leib Melamud via B4 Relay]

From: Shmuel Leib Melamud <smelamud at redhat.com>

Add support of CLK_TYPE_GEN4_MDSEL clock type to gen3_clk_get_rate64()
function. In particular, this type of clock is used by Renesas R-Car
Gen4 watchdog. It operates similarly to CLK_TYPE_GEN3_MDSEL clock.

Signed-off-by: Shmuel Leib Melamud <smelamud at redhat.com>
Reviewed-by: Mattijs Korpershoek <mkorpershoek at kernel.org>
Reviewed-by: Marek Vasut <marek.vasut+renesas at mailbox.org>
---
 drivers/clk/renesas/clk-rcar-gen3.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/renesas/clk-rcar-gen3.c b/drivers/clk/renesas/clk-rcar-gen3.c
index 375cc4a4930873ad0d5509c19ad04a0ea5545aa0..5745acf4023c9114f6fa13b5e4baa306c5b57d33 100644
--- a/drivers/clk/renesas/clk-rcar-gen3.c
+++ b/drivers/clk/renesas/clk-rcar-gen3.c
@@ -68,7 +68,7 @@ static int gen3_clk_get_parent(struct gen3_clk_priv *priv, struct clk *clk,
 		if (ret)
 			return ret;
 
-		if (core->type == CLK_TYPE_GEN3_MDSEL) {
+		if (core->type == CLK_TYPE_GEN3_MDSEL || core->type == CLK_TYPE_GEN4_MDSEL) {
 			shift = priv->cpg_mode & BIT(core->offset) ? 0 : 16;
 			parent->dev = clk->dev;
 			parent->id = core->parent >> shift;
@@ -318,6 +318,8 @@ static u64 gen3_clk_get_rate64(struct clk *clk)
 						"FIXED");
 
 	case CLK_TYPE_GEN3_MDSEL:
+		fallthrough;
+	case CLK_TYPE_GEN4_MDSEL:
 		shift = priv->cpg_mode & BIT(core->offset) ? 0 : 16;
 		div = (core->div >> shift) & 0xffff;
 		rate = gen3_clk_get_rate64(&parent) / div;

-- 
2.49.0