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Commit daffad21 authored by Gabriel Fernandez's avatar Gabriel Fernandez Committed by Stephen Boyd
Browse files

clk: stm32f4: fix: exclude values 0 and 1 for PLLQ 



0000: PLLQ = 0, wrong configuration
0001: PLLQ = 1, wrong configuration
...
0010: PLLQ = 2
0011: PLLQ = 3
0100: PLLQ = 4
...
1111: PLLQ = 1

Use divider table to exclude 0 and 1 values.

Fixes: 83135ad3 ("clk: stm32f4: Add PLL_I2S & PLL_SAI for STM32F429/469 boards")

Signed-off-by: default avatarGabriel Fernandez <gabriel.fernandez@st.com>
Signed-off-by: default avatarStephen Boyd <sboyd@codeaurora.org>
parent 7f0b97d5

drivers/clk/clk-stm32f4.c

+10 −3
Original line number Diff line number Diff line
@@ -429,6 +429,13 @@ static const struct clk_div_table pll_divp_table[] = { 
	{ 0, 2 }, { 1, 4 }, { 2, 6 }, { 3, 8 }, { 0 }

};



static const struct clk_div_table pll_divq_table[] = {

	{ 2, 2 }, { 3, 3 }, { 4, 4 }, { 5, 5 }, { 6, 6 }, { 7, 7 },

	{ 8, 8 }, { 9, 9 }, { 10, 10 }, { 11, 11 }, { 12, 12 }, { 13, 13 },

	{ 14, 14 }, { 15, 15 },

	{ 0 }

};



static const struct clk_div_table pll_divr_table[] = {

	{ 2, 2 }, { 3, 3 }, { 4, 4 }, { 5, 5 }, { 6, 6 }, { 7, 7 }, { 0 }

};
@@ -497,7 +504,7 @@ struct stm32f4_div_data { 
#define MAX_PLL_DIV 3

static const struct stm32f4_div_data  div_data[MAX_PLL_DIV] = {

	{ 16, 2, 0, pll_divp_table },

	{ 24, 4, CLK_DIVIDER_ONE_BASED, NULL		},

	{ 24, 4, 0, pll_divq_table },

	{ 28, 3, 0, pll_divr_table },

};