From 36bac0a193d4cf37ca9c482567bc72012c1299b5 Mon Sep 17 00:00:00 2001
From: Lukasz Majewski <lukma@denx.de>
Date: Mon, 24 Jun 2019 15:50:40 +0200
Subject: [PATCH] clk: Provide struct clk for fixed rate clock
(clk_fixed_rate.c)
Up till now the fixed rate clock ('osc') has been added to UCLASS_CLK
without declaring struct clk. As a result it was only accessible by
iterating the udevice's uclass list.
This is a problem for clock code, which operates on pointers to struct
clk (like clk_get_rate()), not udevices.
After this change struct clk is accessible from udevice and udevice from
struct clk.
Signed-off-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
---
drivers/clk/clk_fixed_rate.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/clk/clk_fixed_rate.c b/drivers/clk/clk_fixed_rate.c
index 50dbb13655..1fdf8c4e54 100644
--- a/drivers/clk/clk_fixed_rate.c
+++ b/drivers/clk/clk_fixed_rate.c
@@ -8,6 +8,7 @@
#include <dm.h>
struct clk_fixed_rate {
+ struct clk clk;
unsigned long fixed_rate;
};
@@ -24,10 +25,14 @@ const struct clk_ops clk_fixed_rate_ops = {
static int clk_fixed_rate_ofdata_to_platdata(struct udevice *dev)
{
+ struct clk *clk = &to_clk_fixed_rate(dev)->clk;
#if !CONFIG_IS_ENABLED(OF_PLATDATA)
to_clk_fixed_rate(dev)->fixed_rate =
dev_read_u32_default(dev, "clock-frequency", 0);
#endif
+ /* Make fixed rate clock accessible from higher level struct clk */
+ dev->uclass_priv = clk;
+ clk->dev = dev;
return 0;
}
--
2.39.5