[PATCH 1/2] tty: amba-pl011: add support for clock frequency setting via dt
From: Jorge Ramirez-Ortiz <hidden>
Date: 2016-07-08 08:11:26
Also in:
lkml
Subsystem:
arm primecell uart pl010 and pl011 drivers, the rest, tty layer and serial drivers · Maintainers:
Russell King, Linus Torvalds, Greg Kroah-Hartman, Jiri Slaby
Allow to specify the clock frequency for any given port via the assigned-clock-rates device tree property. Signed-off-by: Jorge Ramirez-Ortiz <redacted> Tested-by: Jorge Ramirez-Ortiz <redacted> --- drivers/tty/serial/amba-pl011.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index 1b7331e..51867ab 100644
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c@@ -55,6 +55,7 @@ #include <linux/types.h> #include <linux/of.h> #include <linux/of_device.h> +#include <linux/clk/clk-conf.h> #include <linux/pinctrl/consumer.h> #include <linux/sizes.h> #include <linux/io.h>
@@ -2472,6 +2473,10 @@ static int pl011_probe(struct amba_device *dev, const struct amba_id *id) if (IS_ERR(uap->clk)) return PTR_ERR(uap->clk); + ret = of_clk_set_defaults(dev->dev.of_node, false); + if (ret < 0) + return ret; + uap->reg_offset = vendor->reg_offset; uap->vendor = vendor; uap->fifosize = vendor->get_fifosize(dev);
--
2.7.4