[U-Boot] [PATCH] serial: sh: Use the clock framework to obtain clock config
Nobuhiro Iwamatsu
iwamatsu at nigauri.org
Wed Aug 2 23:15:27 UTC 2017
Applied, thanks!
2017-07-22 6:19 GMT+09:00 Marek Vasut <marek.vasut at gmail.com>:
> Since we now have clock driver on the RCar Gen3 , obtain the clock
> configuration using the clock framework functions. In case this
> fails, fall back to the original code for pulling the clock config
> directly out of OF.
>
> Signed-off-by: Marek Vasut <marek.vasut+renesas at gmail.com>
> Cc: Nobuhiro Iwamatsu <iwamatsu at nigauri.org>
> ---
> drivers/serial/serial_sh.c | 13 +++++++++++--
> 1 file changed, 11 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/serial/serial_sh.c b/drivers/serial/serial_sh.c
> index 51f7fbcfb7..087785f9a2 100644
> --- a/drivers/serial/serial_sh.c
> +++ b/drivers/serial/serial_sh.c
> @@ -9,6 +9,7 @@
>
> #include <common.h>
> #include <errno.h>
> +#include <clk.h>
> #include <dm.h>
> #include <asm/io.h>
> #include <asm/processor.h>
> @@ -214,15 +215,23 @@ static const struct udevice_id sh_serial_id[] ={
> static int sh_serial_ofdata_to_platdata(struct udevice *dev)
> {
> struct sh_serial_platdata *plat = dev_get_platdata(dev);
> + struct clk sh_serial_clk;
> fdt_addr_t addr;
> + int ret;
>
> addr = fdtdec_get_addr(gd->fdt_blob, dev_of_offset(dev), "reg");
> if (addr == FDT_ADDR_T_NONE)
> return -EINVAL;
>
> plat->base = addr;
> - plat->clk = fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev), "clock",
> - 1);
> +
> + ret = clk_get_by_name(dev, "fck", &sh_serial_clk);
> + if (!ret)
> + plat->clk = clk_get_rate(&sh_serial_clk);
> + else
> + plat->clk = fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev),
> + "clock", 1);
> +
> plat->type = dev_get_driver_data(dev);
> return 0;
> }
> --
> 2.11.0
>
--
Nobuhiro Iwamatsu
iwamatsu at {nigauri.org / debian.org}
GPG ID: 40AD1FA6
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