stm32f7: serial: use clock driver to enable clock
Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/serial/serial_stm32x7.c b/drivers/serial/serial_stm32x7.c
index 2e6c676..1907cef 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>
@@ -76,6 +77,22 @@
{
struct stm32x7_serial_platdata *plat = dev->platdata;
struct stm32_usart *const usart = plat->base;
+
+#ifdef CONFIG_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;
@@ -98,6 +115,7 @@
return -EINVAL;
plat->base = (struct stm32_usart *)addr;
+
return 0;
}
#endif