From cf75cdf96ef288410222737eca98cf28cdbafbe2 Mon Sep 17 00:00:00 2001 From: Thomas Abraham Date: Sat, 23 Apr 2016 22:18:11 +0530 Subject: [PATCH] serial: s5p: use clock api to get clock rate On Exynos platforms that support clock driver API, allow the driver to use clock api get the SCLK clock rate. Cc: Minkyu Kang Signed-off-by: Thomas Abraham Reviewed-by: Simon Glass Signed-off-by: Minkyu Kang --- drivers/serial/serial_s5p.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/drivers/serial/serial_s5p.c b/drivers/serial/serial_s5p.c index 8590dfd418..cb55c5ab71 100644 --- a/drivers/serial/serial_s5p.c +++ b/drivers/serial/serial_s5p.c @@ -17,6 +17,7 @@ #include #include #include +#include DECLARE_GLOBAL_DATA_PTR; @@ -90,7 +91,19 @@ int s5p_serial_setbrg(struct udevice *dev, int baudrate) { struct s5p_serial_platdata *plat = dev->platdata; struct s5p_uart *const uart = plat->reg; - u32 uclk = get_uart_clk(plat->port_id); + u32 uclk; + +#ifdef CONFIG_CLK_EXYNOS + struct udevice *clk_dev; + u32 ret; + + ret = clk_get_by_index(dev, 1, &clk_dev); + if (ret < 0) + return ret; + uclk = clk_get_periph_rate(clk_dev, ret); +#else + uclk = get_uart_clk(plat->port_id); +#endif s5p_serial_baud(uart, uclk, baudrate);