| Message ID | 20170915191127.28435-1-marek.vasut+renesas@gmail.com |
|---|---|
| State | Accepted |
| Commit | 791c174d58f6fbea2b055b5851ab33d8f73b2c93 |
| Delegated to: | Nobuhiro Iwamatsu |
| Headers | show |
| Series | [U-Boot] serial: sh: Enable clock if available | expand |
diff --git a/drivers/serial/serial_sh.c b/drivers/serial/serial_sh.c index 087785f9a2..d9db702803 100644 --- a/drivers/serial/serial_sh.c +++ b/drivers/serial/serial_sh.c @@ -226,11 +226,14 @@ static int sh_serial_ofdata_to_platdata(struct udevice *dev) plat->base = addr; ret = clk_get_by_name(dev, "fck", &sh_serial_clk); - if (!ret) - plat->clk = clk_get_rate(&sh_serial_clk); - else + if (!ret) { + ret = clk_enable(&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;
If the clock framework provides the driver with valid clock, enable them, otherwise the SCIF might not work if the clock are not enabled prior to the driver probe. Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org> --- drivers/serial/serial_sh.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-)