Thread (4 messages) 4 messages, 3 authors, 2023-06-26
STALE1121d LANDED

[PATCH] clk: rockchip: rk3568: Fix PLL rate setting for 78.75MHz

From: Alibek Omarov <hidden>
Date: 2023-06-14 13:48:27
Also in: linux-clk, linux-rockchip, lkml
Subsystem: arm/rockchip soc support, common clk framework, the rest · Maintainers: Heiko Stuebner, Michael Turquette, Stephen Boyd, Linus Torvalds

PLL rate on RK356x is calculated through the simple formula:
((24000000 / _refdiv) * _fbdiv) / (_postdiv1 * _postdiv2)

The PLL rate setting for 78.75MHz seems to be copied from 96MHz
so this patch fixes it and configures it properly.

Signed-off-by: Alibek Omarov <redacted>
Fixes: 842f4cb72639 ("clk: rockchip: Add more PLL rates for rk3568")
---
 drivers/clk/rockchip/clk-rk3568.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/clk/rockchip/clk-rk3568.c b/drivers/clk/rockchip/clk-rk3568.c
index 5dae960af4ce..48b8d06c305c 100644
--- a/drivers/clk/rockchip/clk-rk3568.c
+++ b/drivers/clk/rockchip/clk-rk3568.c
@@ -82,7 +82,7 @@ static struct rockchip_pll_rate_table rk3568_pll_rates[] = {
 	RK3036_PLL_RATE(101000000, 1, 101, 6, 4, 1, 0),
 	RK3036_PLL_RATE(100000000, 1, 150, 6, 6, 1, 0),
 	RK3036_PLL_RATE(96000000, 1, 96, 6, 4, 1, 0),
-	RK3036_PLL_RATE(78750000, 1, 96, 6, 4, 1, 0),
+	RK3036_PLL_RATE(78750000, 4, 315, 6, 4, 1, 0),
 	RK3036_PLL_RATE(74250000, 2, 99, 4, 4, 1, 0),
 	{ /* sentinel */ },
 };
-- 
2.34.1


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