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authorStephen Boyd <sboyd@kernel.org>2019-03-07 01:13:41 +0300
committerStephen Boyd <sboyd@kernel.org>2019-03-07 01:14:44 +0300
commit043f44aba9a871da521fe6ebecd5c63e406256ff (patch)
treea525523b76ed401b0c2a0677305d334d4849d659 /drivers/clk/clk-highbank.c
parent1c163f4c7b3f621efff9b28a47abb36f7378d783 (diff)
downloadlinux-043f44aba9a871da521fe6ebecd5c63e406256ff.tar.xz
clk: highbank: Convert to CLK_IS_CRITICAL
This code is hand-rolling the CLK_IS_CRITICAL flag to keep a clk on once it's registered. Just mark it as CLK_IS_CRITICAL instead so that the framework can handle keeping the clk prepared and enabled for all eternity. Cc: Rob Herring <robh@kernel.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Diffstat (limited to 'drivers/clk/clk-highbank.c')
-rw-r--r--drivers/clk/clk-highbank.c23
1 files changed, 10 insertions, 13 deletions
diff --git a/drivers/clk/clk-highbank.c b/drivers/clk/clk-highbank.c
index 727ed8e1bb72..bc095382cf43 100644
--- a/drivers/clk/clk-highbank.c
+++ b/drivers/clk/clk-highbank.c
@@ -17,7 +17,6 @@
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/err.h>
-#include <linux/clk.h>
#include <linux/clk-provider.h>
#include <linux/io.h>
#include <linux/of.h>
@@ -272,7 +271,7 @@ static const struct clk_ops periclk_ops = {
.set_rate = clk_periclk_set_rate,
};
-static __init struct clk *hb_clk_init(struct device_node *node, const struct clk_ops *ops)
+static void __init hb_clk_init(struct device_node *node, const struct clk_ops *ops, unsigned long clkflags)
{
u32 reg;
struct hb_clk *hb_clk;
@@ -284,11 +283,11 @@ static __init struct clk *hb_clk_init(struct device_node *node, const struct clk
rc = of_property_read_u32(node, "reg", &reg);
if (WARN_ON(rc))
- return NULL;
+ return;
hb_clk = kzalloc(sizeof(*hb_clk), GFP_KERNEL);
if (WARN_ON(!hb_clk))
- return NULL;
+ return;
/* Map system registers */
srnp = of_find_compatible_node(NULL, NULL, "calxeda,hb-sregs");
@@ -300,7 +299,7 @@ static __init struct clk *hb_clk_init(struct device_node *node, const struct clk
init.name = clk_name;
init.ops = ops;
- init.flags = 0;
+ init.flags = clkflags;
parent_name = of_clk_get_parent_name(node, 0);
init.parent_names = &parent_name;
init.num_parents = 1;
@@ -310,33 +309,31 @@ static __init struct clk *hb_clk_init(struct device_node *node, const struct clk
rc = clk_hw_register(NULL, &hb_clk->hw);
if (WARN_ON(rc)) {
kfree(hb_clk);
- return NULL;
+ return;
}
- rc = of_clk_add_hw_provider(node, of_clk_hw_simple_get, &hb_clk->hw);
- return hb_clk->hw.clk;
+ of_clk_add_hw_provider(node, of_clk_hw_simple_get, &hb_clk->hw);
}
static void __init hb_pll_init(struct device_node *node)
{
- hb_clk_init(node, &clk_pll_ops);
+ hb_clk_init(node, &clk_pll_ops, 0);
}
CLK_OF_DECLARE(hb_pll, "calxeda,hb-pll-clock", hb_pll_init);
static void __init hb_a9periph_init(struct device_node *node)
{
- hb_clk_init(node, &a9periphclk_ops);
+ hb_clk_init(node, &a9periphclk_ops, 0);
}
CLK_OF_DECLARE(hb_a9periph, "calxeda,hb-a9periph-clock", hb_a9periph_init);
static void __init hb_a9bus_init(struct device_node *node)
{
- struct clk *clk = hb_clk_init(node, &a9bclk_ops);
- clk_prepare_enable(clk);
+ hb_clk_init(node, &a9bclk_ops, CLK_IS_CRITICAL);
}
CLK_OF_DECLARE(hb_a9bus, "calxeda,hb-a9bus-clock", hb_a9bus_init);
static void __init hb_emmc_init(struct device_node *node)
{
- hb_clk_init(node, &periclk_ops);
+ hb_clk_init(node, &periclk_ops, 0);
}
CLK_OF_DECLARE(hb_emmc, "calxeda,hb-emmc-clock", hb_emmc_init);