From e6849e2fd88f16d9592059422173f7f6ab790e07 Mon Sep 17 00:00:00 2001
From: Peng Fan <peng.fan@nxp.com>
Date: Wed, 21 Aug 2019 13:35:03 +0000
Subject: [PATCH] clk: introduce enable_count
As what Linux Kernel 5.3.0 provides when enable/disable clk,
there is an enable_count in clk_core_disable/enable. Introduce
enable_count to track the clk enable/disable count when
clk_enable/disable for CCF. And Initialize enable_count to 0 when
register the clk.
And clk tree dump with enable_count will be supported, it will
be easy for us to check the clk status with enable_count
Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
drivers/clk/clk.c | 1 +
drivers/clk/clk_fixed_rate.c | 1 +
include/clk.h | 1 +
3 files changed, 3 insertions(+)
diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index 39b3087067..1cf9987f6c 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -40,6 +40,7 @@ int clk_register(struct clk *clk, const char *drv_name,
return ret;
}
+ clk->enable_count = 0;
/* Store back pointer to clk from udevice */
clk->dev->uclass_priv = clk;
diff --git a/drivers/clk/clk_fixed_rate.c b/drivers/clk/clk_fixed_rate.c
index 08cce0d79b..f51126793e 100644
--- a/drivers/clk/clk_fixed_rate.c
+++ b/drivers/clk/clk_fixed_rate.c
@@ -27,6 +27,7 @@ static int clk_fixed_rate_ofdata_to_platdata(struct udevice *dev)
/* Make fixed rate clock accessible from higher level struct clk */
dev->uclass_priv = clk;
clk->dev = dev;
+ clk->enable_count = 0;
return 0;
}
diff --git a/include/clk.h b/include/clk.h
index 3ca2796b57..18b2e3ca54 100644
--- a/include/clk.h
+++ b/include/clk.h
@@ -61,6 +61,7 @@ struct clk {
struct udevice *dev;
long long rate; /* in HZ */
u32 flags;
+ int enable_count;
/*
* Written by of_xlate. In the future, we might add more fields here.
*/
--
2.39.5