From db2f44820a981d353c41d36b27dccd3bb90b5e62 Mon Sep 17 00:00:00 2001 From: Eugen Hristev Date: Mon, 11 Nov 2019 13:28:57 +0000 Subject: [PATCH] clk: at91: sam9x60-pll: adapt PMC_PLL_ACR default value Product datasheet recommends different values for UPLL and PLLA analog control register. Adapt accordingly. Signed-off-by: Eugen Hristev Link: https://lkml.kernel.org/r/1573478913-19737-1-git-send-email-eugen.hristev@microchip.com Acked-by: Nicolas Ferre Signed-off-by: Stephen Boyd --- drivers/clk/at91/clk-sam9x60-pll.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/clk/at91/clk-sam9x60-pll.c b/drivers/clk/at91/clk-sam9x60-pll.c index 34b817825b22..dfb354a5ff18 100644 --- a/drivers/clk/at91/clk-sam9x60-pll.c +++ b/drivers/clk/at91/clk-sam9x60-pll.c @@ -25,7 +25,8 @@ #define PMC_PLL_CTRL1_MUL_MSK GENMASK(30, 24) #define PMC_PLL_ACR 0x18 -#define PMC_PLL_ACR_DEFAULT 0x1b040010UL +#define PMC_PLL_ACR_DEFAULT_UPLL 0x12020010UL +#define PMC_PLL_ACR_DEFAULT_PLLA 0x00020010UL #define PMC_PLL_ACR_UTMIVR BIT(12) #define PMC_PLL_ACR_UTMIBG BIT(13) #define PMC_PLL_ACR_LOOP_FILTER_MSK GENMASK(31, 24) @@ -88,7 +89,10 @@ static int sam9x60_pll_prepare(struct clk_hw *hw) } /* Recommended value for PMC_PLL_ACR */ - val = PMC_PLL_ACR_DEFAULT; + if (pll->characteristics->upll) + val = PMC_PLL_ACR_DEFAULT_UPLL; + else + val = PMC_PLL_ACR_DEFAULT_PLLA; regmap_write(regmap, PMC_PLL_ACR, val); regmap_write(regmap, PMC_PLL_CTRL1, -- 2.45.2