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serial: lpuart: Enable IPG clock

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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>
This commit is contained in:
Ye Li 2023-07-25 10:08:55 +02:00 committed by Stefano Babic
parent 30e5b403d7
commit cc7df0b9e8
1 changed files with 13 additions and 1 deletions
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14
drivers/serial/serial_lpuart.c
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@ -480,18 +480,30 @@ static int lpuart_serial_probe(struct udevice *dev)
{
#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))