Re: [PATCH v3 2/6] serial: lpuart: use ipg clk for i.MX7ULP

[Fabio Estevam]

On Wed, Mar 27, 2024 at 8:53 PM Peng Fan (OSS)  wrote:

> +   struct lpuart_serial_plat *plat = dev_get_plat(dev);
> struct clk per_clk;

Please rename from "per_clk" to "clk".

[PATCH v3 2/6] serial: lpuart: use ipg clk for i.MX7ULP

[Peng Fan (OSS)]

From: Peng Fan 

To i.MX7ULP compatible lpuart, there is only ipg clk, no per clk.
So add a devtype check for i.MX7ULP.

Signed-off-by: Peng Fan 
---
 drivers/serial/serial_lpuart.c | 9 -
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/serial/serial_lpuart.c b/drivers/serial/serial_lpuart.c
index ce08a6b4486..653ff99e67b 100644
--- a/drivers/serial/serial_lpuart.c
+++ b/drivers/serial/serial_lpuart.c
@@ -111,11 +111,18 @@ u32 __weak get_lpuart_clk(void)
 #if CONFIG_IS_ENABLED(CLK)
 static int get_lpuart_clk_rate(struct udevice *dev, u32 *clk)
 {
+   struct lpuart_serial_plat *plat = dev_get_plat(dev);
struct clk per_clk;
ulong rate;
int ret;
+   char *name;
 
-   ret = clk_get_by_name(dev, "per", _clk);
+   if (plat->devtype == DEV_MX7ULP)
+   name = "ipg";
+   else
+   name = "per";
+
+   ret = clk_get_by_name(dev, name, _clk);
if (ret) {
dev_err(dev, "Failed to get per clk: %d\n", ret);
return ret;

-- 
2.35.3