[PATCH 4/4] clk: stm32f4: fix ltdc driver hang as clk set rate failed

[dillon . minfei]

From: dillon min <dillon.min...@gmail.com>

should use PLL_SAI offset of clks , not PLL_VCO_SAI
else can not get clk gate.

Signed-off-by: dillon min <dillon.min...@gmail.com>
---
 drivers/clk/clk-stm32f4.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/clk/clk-stm32f4.c b/drivers/clk/clk-stm32f4.c
index 18117ce..bdebe05 100644
--- a/drivers/clk/clk-stm32f4.c
+++ b/drivers/clk/clk-stm32f4.c
@@ -129,7 +129,8 @@ static const struct stm32f4_gate_data stm32f429_gates[] 
__initconst = {
        { STM32F4_RCC_APB2ENR, 20,      "spi5",         "apb2_div" },
        { STM32F4_RCC_APB2ENR, 21,      "spi6",         "apb2_div" },
        { STM32F4_RCC_APB2ENR, 22,      "sai1",         "apb2_div" },
-       { STM32F4_RCC_APB2ENR, 26,      "ltdc",         "apb2_div" },
+       { STM32F4_RCC_APB2ENR, 26,      "ltdc",         "apb2_div",
+               CLK_IGNORE_UNUSED },
 };
 
 static const struct stm32f4_gate_data stm32f469_gates[] __initconst = {
@@ -1754,10 +1755,10 @@ static void __init stm32f4_rcc_init(struct device_node 
*np)
        stm32f4_rcc_register_pll("vco_in", &data->pll_data[0],
                        &stm32f4_clk_lock);
 
-       clks[PLL_VCO_I2S] = stm32f4_rcc_register_pll("vco_in",
+       clks[PLL_I2S] = stm32f4_rcc_register_pll("vco_in",
                        &data->pll_data[1], &stm32f4_clk_lock);
 
-       clks[PLL_VCO_SAI] = stm32f4_rcc_register_pll("vco_in",
+       clks[PLL_SAI] = stm32f4_rcc_register_pll("vco_in",
                        &data->pll_data[2], &stm32f4_clk_lock);
 
        for (n = 0; n < MAX_POST_DIV; n++) {
-- 
2.7.4