[PATCH 1/2] clk: stm32f: fix setting of division factor for LCD_CLK

Dario Binacchi dario.binacchi at amarulasolutions.com
Sat Nov 11 11:46:18 CET 2023


The value to be written to the register must be appropriately shifted,
as is correctly done in other parts of the code.

Fixes: 5e993508cb25 ("clk: clk_stm32f: Add set_rate for LTDC clock")
Signed-off-by: Dario Binacchi <dario.binacchi at amarulasolutions.com>
---

 drivers/clk/stm32/clk-stm32f.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/stm32/clk-stm32f.c b/drivers/clk/stm32/clk-stm32f.c
index ed7660196ef0..4c1864193357 100644
--- a/drivers/clk/stm32/clk-stm32f.c
+++ b/drivers/clk/stm32/clk-stm32f.c
@@ -530,7 +530,8 @@ static ulong stm32_set_rate(struct clk *clk, ulong rate)
 			/* set pll_saidivr with found value */
 			clrsetbits_le32(&regs->dckcfgr,
 					RCC_DCKCFGR_PLLSAIDIVR_MASK,
-					pllsaidivr_table[i]);
+					pllsaidivr_table[i] <<
+					RCC_DCKCFGR_PLLSAIDIVR_SHIFT);
 			return rate;
 		}
 
-- 
2.42.0



More information about the U-Boot mailing list