From: T Karthik Reddy <t.karthik.reddy@xilinx.com>
Date: Wed, 3 Feb 2021 10:10:46 +0000 (-0700)
Subject: i2c: i2c_cdns: Enable i2c clock
X-Git-Url: http://git.dujemihanovic.xyz/img/static/git-logo.png?a=commitdiff_plain;h=8faa7913a425e9737df8e4183030dd72c1d668b7;p=u-boot.git

i2c: i2c_cdns: Enable i2c clock

Enable i2c controller clock from driver probe function
by calling clk_enable().

Signed-off-by: T Karthik Reddy <t.karthik.reddy@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
---

diff --git a/drivers/i2c/i2c-cdns.c b/drivers/i2c/i2c-cdns.c
index db3c04fa6e..a650dd69b8 100644
--- a/drivers/i2c/i2c-cdns.c
+++ b/drivers/i2c/i2c-cdns.c
@@ -15,6 +15,7 @@
 #include <linux/types.h>
 #include <linux/io.h>
 #include <linux/errno.h>
+#include <dm/device_compat.h>
 #include <dm/root.h>
 #include <i2c.h>
 #include <fdtdec.h>
@@ -481,6 +482,12 @@ static int cdns_i2c_of_to_plat(struct udevice *dev)
 
 	i2c_bus->input_freq = clk_get_rate(&clk);
 
+	ret = clk_enable(&clk);
+	if (ret) {
+		dev_err(dev, "failed to enable clock\n");
+		return ret;
+	}
+
 	return 0;
 }