diff options
| -rw-r--r-- | drivers/clk/clk-stm32f4.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/clk/clk-stm32f4.c b/drivers/clk/clk-stm32f4.c index fb9c4de9bb3a..fde883a73394 100644 --- a/drivers/clk/clk-stm32f4.c +++ b/drivers/clk/clk-stm32f4.c @@ -946,6 +946,8 @@ static const char *rtc_parents[4] = { static const char *lcd_parent[1] = { "pllsai-r-div" }; +static const char *i2s_parents[2] = { "plli2s-r", NULL }; + struct stm32_aux_clk { int idx; const char *name; @@ -975,6 +977,12 @@ static const struct stm32_aux_clk stm32f429_aux_clk[] = { STM32F4_RCC_APB2ENR, 26, CLK_SET_RATE_PARENT }, + { + CLK_I2S, "i2s", i2s_parents, ARRAY_SIZE(i2s_parents), + STM32F4_RCC_CFGR, 23, 1, + NO_GATE, 0, + CLK_SET_RATE_PARENT + }, }; static const struct stm32f4_clk_data stm32f429_clk_data = { @@ -1069,7 +1077,7 @@ fail: static void __init stm32f4_rcc_init(struct device_node *np) { - const char *hse_clk; + const char *hse_clk, *i2s_in_clk; int n; const struct of_device_id *match; const struct stm32f4_clk_data *data; @@ -1104,6 +1112,10 @@ static void __init stm32f4_rcc_init(struct device_node *np) hse_clk = of_clk_get_parent_name(np, 0); + i2s_in_clk = of_clk_get_parent_name(np, 1); + + i2s_parents[1] = i2s_in_clk; + clk_register_fixed_rate_with_accuracy(NULL, "hsi", NULL, 0, 16000000, 160000); pllcfgr = readl(base + STM32F4_RCC_PLLCFGR); |