From 791c174d58f6fbea2b055b5851ab33d8f73b2c93 Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Fri, 15 Sep 2017 21:11:27 +0200 Subject: [PATCH] serial: sh: Enable clock if available 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 Cc: Nobuhiro Iwamatsu Signed-off-by: Nobuhiro Iwamatsu --- drivers/serial/serial_sh.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) 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; -- 2.39.5