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authorLee Jones <lee.jones@linaro.org>2016-06-07 14:19:26 +0300
committerStephen Boyd <sboyd@codeaurora.org>2016-06-30 22:17:09 +0300
commita3a2d78bd1860472903929f7f2385278204d9164 (patch)
tree005c85af9d4d71138dd590fb27c8477f7ff7f89a /drivers/clk/st
parentfa6415affe2020606799fd4e9e89f37a01fb2ae9 (diff)
downloadlinux-a3a2d78bd1860472903929f7f2385278204d9164.tar.xz
clk: st: clkgen-fsyn: Detect critical clocks
Utilise the new Critical Clock infrastructure to mark clocks which much not be disabled as CRITICAL. Clocks are marked as CRITICAL using clk flags. This patch also ensures flags are peculated through the framework in the correct manner. Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Diffstat (limited to 'drivers/clk/st')
-rw-r--r--drivers/clk/st/clkgen-fsyn.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/clk/st/clkgen-fsyn.c b/drivers/clk/st/clkgen-fsyn.c
index dec4eaaecc00..09afeb85109c 100644
--- a/drivers/clk/st/clkgen-fsyn.c
+++ b/drivers/clk/st/clkgen-fsyn.c
@@ -1027,7 +1027,7 @@ static const struct clk_ops st_quadfs_ops = {
static struct clk * __init st_clk_register_quadfs_fsynth(
const char *name, const char *parent_name,
struct clkgen_quadfs_data *quadfs, void __iomem *reg, u32 chan,
- spinlock_t *lock)
+ unsigned long flags, spinlock_t *lock)
{
struct st_clk_quadfs_fsynth *fs;
struct clk *clk;
@@ -1045,7 +1045,7 @@ static struct clk * __init st_clk_register_quadfs_fsynth(
init.name = name;
init.ops = &st_quadfs_ops;
- init.flags = CLK_GET_RATE_NOCACHE | CLK_IS_BASIC;
+ init.flags = flags | CLK_GET_RATE_NOCACHE | CLK_IS_BASIC;
init.parent_names = &parent_name;
init.num_parents = 1;
@@ -1115,6 +1115,7 @@ static void __init st_of_create_quadfs_fsynths(
for (fschan = 0; fschan < QUADFS_MAX_CHAN; fschan++) {
struct clk *clk;
const char *clk_name;
+ unsigned long flags = 0;
if (of_property_read_string_index(np, "clock-output-names",
fschan, &clk_name)) {
@@ -1127,8 +1128,11 @@ static void __init st_of_create_quadfs_fsynths(
if (*clk_name == '\0')
continue;
+ of_clk_detect_critical(np, fschan, &flags);
+
clk = st_clk_register_quadfs_fsynth(clk_name, pll_name,
- quadfs, reg, fschan, lock);
+ quadfs, reg, fschan,
+ flags, lock);
/*
* If there was an error registering this clock output, clean