From: Wenyou Yang <wenyou.yang@microchip.com>
Date: Fri, 9 Feb 2018 03:34:52 +0000 (+0800)
Subject: clk: at91: clk-system: add set/get_rate operations
X-Git-Url: http://git.dujemihanovic.xyz/%22http:/www.sics.se/static/git-logo.png?a=commitdiff_plain;h=162a7de5e519eb489003124d3679039d3840435c;p=u-boot.git

clk: at91: clk-system: add set/get_rate operations

To support set/get the clock rate, add set/get_rate operations.

Signed-off-by: Wenyou Yang <wenyou.yang@microchip.com>
---

diff --git a/drivers/clk/at91/clk-system.c b/drivers/clk/at91/clk-system.c
index 24b271aa18..81fe47a9d7 100644
--- a/drivers/clk/at91/clk-system.c
+++ b/drivers/clk/at91/clk-system.c
@@ -44,6 +44,30 @@ static inline int is_pck(int id)
 	return (id >= 8) && (id <= 15);
 }
 
+static ulong system_clk_get_rate(struct clk *clk)
+{
+	struct clk clk_dev;
+	int ret;
+
+	ret = clk_get_by_index(clk->dev, 0, &clk_dev);
+	if (ret)
+		return -EINVAL;
+
+	return clk_get_rate(&clk_dev);
+}
+
+static ulong system_clk_set_rate(struct clk *clk, ulong rate)
+{
+	struct clk clk_dev;
+	int ret;
+
+	ret = clk_get_by_index(clk->dev, 0, &clk_dev);
+	if (ret)
+		return -EINVAL;
+
+	return clk_set_rate(&clk_dev, rate);
+}
+
 static int system_clk_enable(struct clk *clk)
 {
 	struct pmc_platdata *plat = dev_get_platdata(clk->dev);
@@ -73,6 +97,8 @@ static int system_clk_enable(struct clk *clk)
 
 static struct clk_ops system_clk_ops = {
 	.of_xlate = at91_clk_of_xlate,
+	.get_rate = system_clk_get_rate,
+	.set_rate = system_clk_set_rate,
 	.enable = system_clk_enable,
 };