Signed-off-by: Vikas Manocha vikas.manocha@st.com --- drivers/serial/serial_stm32x7.c | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-)
diff --git a/drivers/serial/serial_stm32x7.c b/drivers/serial/serial_stm32x7.c index 2e6c676..969d94c 100644 --- a/drivers/serial/serial_stm32x7.c +++ b/drivers/serial/serial_stm32x7.c @@ -6,6 +6,7 @@ */
#include <common.h> +#include <clk.h> #include <dm.h> #include <asm/io.h> #include <serial.h> @@ -76,8 +77,23 @@ static int stm32_serial_probe(struct udevice *dev) { struct stm32x7_serial_platdata *plat = dev->platdata; struct stm32_usart *const usart = plat->base; - setbits_le32(&usart->cr1, USART_CR1_RE | USART_CR1_TE | USART_CR1_UE);
+#if CONFIG_IS_ENABLED(CLK) + int ret; + struct clk clk; + ret = clk_get_by_index(dev, 0, &clk); + if (ret < 0) + return ret; + + ret = clk_enable(&clk); + + if (ret) { + dev_err(dev, "failed to enable clock\n"); + return ret; + } +#endif + + setbits_le32(&usart->cr1, USART_CR1_RE | USART_CR1_TE | USART_CR1_UE); return 0; }