From: Alexandre Belloni alexandre.belloni@bootlin.com
commit c1e4580a1d0ff510d56268c1fc7fcfeec366fe70 upstream.
Set gck->audio_pll_allowed in at91_clk_register_generated. This makes it easier to do it from code that is not parsing device tree.
Also, this fixes an issue where the resulting clk_hw can be dereferenced before being tested for error.
Fixes: 1a1a36d72e3d ("clk: at91: clk-generated: make gclk determine audio_pll rate") Signed-off-by: Alexandre Belloni alexandre.belloni@bootlin.com Signed-off-by: Stephen Boyd sboyd@kernel.org Signed-off-by: Lee Jones lee.jones@linaro.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/clk/at91/clk-generated.c | 28 ++++++++++------------------ 1 file changed, 10 insertions(+), 18 deletions(-)
--- a/drivers/clk/at91/clk-generated.c +++ b/drivers/clk/at91/clk-generated.c @@ -284,7 +284,7 @@ static void clk_generated_startup(struct static struct clk_hw * __init at91_clk_register_generated(struct regmap *regmap, spinlock_t *lock, const char *name, const char **parent_names, - u8 num_parents, u8 id, + u8 num_parents, u8 id, bool pll_audio, const struct clk_range *range) { struct clk_generated *gck; @@ -308,6 +308,7 @@ at91_clk_register_generated(struct regma gck->regmap = regmap; gck->lock = lock; gck->range = *range; + gck->audio_pll_allowed = pll_audio;
clk_generated_startup(gck); hw = &gck->hw; @@ -333,7 +334,6 @@ static void __init of_sama5d2_clk_genera struct device_node *gcknp; struct clk_range range = CLK_RANGE(0, 0); struct regmap *regmap; - struct clk_generated *gck;
num_parents = of_clk_get_parent_count(np); if (num_parents == 0 || num_parents > GENERATED_SOURCE_MAX) @@ -350,6 +350,8 @@ static void __init of_sama5d2_clk_genera return;
for_each_child_of_node(np, gcknp) { + bool pll_audio = false; + if (of_property_read_u32(gcknp, "reg", &id)) continue;
@@ -362,24 +364,14 @@ static void __init of_sama5d2_clk_genera of_at91_get_clk_range(gcknp, "atmel,clk-output-range", &range);
+ if (of_device_is_compatible(np, "atmel,sama5d2-clk-generated") && + (id == GCK_ID_I2S0 || id == GCK_ID_I2S1 || + id == GCK_ID_CLASSD)) + pll_audio = true; + hw = at91_clk_register_generated(regmap, &pmc_pcr_lock, name, parent_names, num_parents, - id, &range); - - gck = to_clk_generated(hw); - - if (of_device_is_compatible(np, - "atmel,sama5d2-clk-generated")) { - if (gck->id == GCK_ID_SSC0 || gck->id == GCK_ID_SSC1 || - gck->id == GCK_ID_I2S0 || gck->id == GCK_ID_I2S1 || - gck->id == GCK_ID_CLASSD) - gck->audio_pll_allowed = true; - else - gck->audio_pll_allowed = false; - } else { - gck->audio_pll_allowed = false; - } - + id, pll_audio, &range); if (IS_ERR(hw)) continue;