On Tue, Jun 07, 2022 at 01:03:36PM +0300, Alexander Shiyan wrote:
> Adding compatibility for AM437X platforms.
> Since the serial node is not populated with a clock node,
> let's add an additional driver variable to set the default clock speed.
>
> Signed-off-by: Alexander Shiyan <eagle.alexander923@xxxxxxxxx>
> ---
> drivers/serial/serial_ns16550.c | 17 +++++++++++++++--
> 1 file changed, 15 insertions(+), 2 deletions(-)
Applied, thanks
Sascha
>
> diff --git a/drivers/serial/serial_ns16550.c b/drivers/serial/serial_ns16550.c
> index f93a89ab95..fb6af42e00 100644
> --- a/drivers/serial/serial_ns16550.c
> +++ b/drivers/serial/serial_ns16550.c
> @@ -42,8 +42,9 @@ struct ns16550_priv {
> };
>
> struct ns16550_drvdata {
> - void (*init_port)(struct console_device *cdev);
> - const char *linux_console_name;
> + void (*init_port)(struct console_device *cdev);
> + const char *linux_console_name;
> + unsigned int clk_default;
> };
>
> static inline struct ns16550_priv *to_ns16550_priv(struct console_device *cdev)
> @@ -362,6 +363,12 @@ static __maybe_unused struct ns16550_drvdata omap_drvdata = {
> .linux_console_name = "ttyO",
> };
>
> +static __maybe_unused struct ns16550_drvdata am43xx_drvdata = {
> + .init_port = ns16550_omap_init_port,
> + .linux_console_name = "ttyO",
> + .clk_default = 48000000,
> +};
> +
> static __maybe_unused struct ns16550_drvdata jz_drvdata = {
> .init_port = ns16550_jz_init_port,
> };
> @@ -472,6 +479,9 @@ static int ns16550_probe(struct device_d *dev)
> else
> ns16550_probe_dt(dev, priv);
>
> + if (devtype->clk_default && !priv->plat.clock)
> + priv->plat.clock = devtype->clk_default;
> +
> if (!priv->plat.clock) {
> priv->clk = clk_get(dev, NULL);
> if (IS_ERR(priv->clk)) {
> @@ -537,6 +547,9 @@ static struct of_device_id ns16550_serial_dt_ids[] = {
> }, {
> .compatible = "ti,omap4-uart",
> .data = &omap_drvdata,
> + }, {
> + .compatible = "ti,am4372-uart",
> + .data = &am43xx_drvdata,
> },
> #endif
> #if IS_ENABLED(CONFIG_MACH_MIPS_XBURST)
> --
> 2.32.0
>
>
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