serial: lpuart: Enable IPG clock
Current codes only ennable the PER clock. However on iMX8 the LPUART
also needs IPG clock which is an LPCG. Should not depend on the default
LPCG setting.
Signed-off-by: Ye Li <ye.li@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Sébastien Szymanski <sebastien.szymanski@armadeus.com>
diff --git a/drivers/serial/serial_lpuart.c b/drivers/serial/serial_lpuart.c
index 51e66ab..ce08a6b 100644
--- a/drivers/serial/serial_lpuart.c
+++ b/drivers/serial/serial_lpuart.c
@@ -480,18 +480,30 @@
{
#if CONFIG_IS_ENABLED(CLK)
struct clk per_clk;
+ struct clk ipg_clk;
int ret;
ret = clk_get_by_name(dev, "per", &per_clk);
if (!ret) {
ret = clk_enable(&per_clk);
if (ret) {
- dev_err(dev, "Failed to get per clk: %d\n", ret);
+ dev_err(dev, "Failed to enable per clk: %d\n", ret);
return ret;
}
} else {
debug("%s: Failed to get per clk: %d\n", __func__, ret);
}
+
+ ret = clk_get_by_name(dev, "ipg", &ipg_clk);
+ if (!ret) {
+ ret = clk_enable(&ipg_clk);
+ if (ret) {
+ dev_err(dev, "Failed to enable ipg clk: %d\n", ret);
+ return ret;
+ }
+ } else {
+ debug("%s: Failed to get ipg clk: %d\n", __func__, ret);
+ }
#endif
if (is_lpuart32(dev))