Some SR type PLLs need to be configured for a certain rate when
linux boots. Add support for these types of PLLs so that we can
program PLL15's rate on APQ8064.
Signed-off-by: Stephen Boyd <sboyd@xxxxxxxxxxxxxx>
---
drivers/clk/qcom/clk-pll.c | 15 ++++++++++++---
drivers/clk/qcom/clk-pll.h | 2 ++
2 files changed, 14 insertions(+), 3 deletions(-)
diff --git a/drivers/clk/qcom/clk-pll.c b/drivers/clk/qcom/clk-pll.c
index 0f927c538613..9db03d3b1657 100644
--- a/drivers/clk/qcom/clk-pll.c
+++ b/drivers/clk/qcom/clk-pll.c
@@ -166,7 +166,7 @@ const struct clk_ops clk_pll_vote_ops = {
EXPORT_SYMBOL_GPL(clk_pll_vote_ops);
static void
-clk_pll_set_fsm_mode(struct clk_pll *pll, struct regmap *regmap)
+clk_pll_set_fsm_mode(struct clk_pll *pll, struct regmap *regmap, u8 lock_count)
{
u32 val;
u32 mask;
@@ -175,7 +175,7 @@ clk_pll_set_fsm_mode(struct clk_pll *pll, struct regmap *regmap)
regmap_update_bits(regmap, pll->mode_reg, PLL_VOTE_FSM_RESET, 0);
/* Program bias count and lock count */
- val = 1 << PLL_BIAS_COUNT_SHIFT;
+ val = 1 << PLL_BIAS_COUNT_SHIFT | lock_count << PLL_LOCK_COUNT_SHIFT;
mask = PLL_BIAS_COUNT_MASK << PLL_BIAS_COUNT_SHIFT;
mask |= PLL_LOCK_COUNT_MASK << PLL_LOCK_COUNT_SHIFT;
regmap_update_bits(regmap, pll->mode_reg, mask, val);
@@ -212,11 +212,20 @@ static void clk_pll_configure(struct clk_pll *pll, struct regmap *regmap,
regmap_update_bits(regmap, pll->config_reg, mask, val);
}
+void clk_pll_configure_sr(struct clk_pll *pll, struct regmap *regmap,
+ const struct pll_config *config, bool fsm_mode)
+{
+ clk_pll_configure(pll, regmap, config);
+ if (fsm_mode)
+ clk_pll_set_fsm_mode(pll, regmap, 8);
+}
+EXPORT_SYMBOL_GPL(clk_pll_configure_sr);
+
void clk_pll_configure_sr_hpm_lp(struct clk_pll *pll, struct regmap *regmap,
const struct pll_config *config, bool fsm_mode)
{
clk_pll_configure(pll, regmap, config);
if (fsm_mode)
- clk_pll_set_fsm_mode(pll, regmap);
+ clk_pll_set_fsm_mode(pll, regmap, 0);
}
EXPORT_SYMBOL_GPL(clk_pll_configure_sr_hpm_lp);
diff --git a/drivers/clk/qcom/clk-pll.h b/drivers/clk/qcom/clk-pll.h
index 0775a99ca768..3003e9962472 100644
--- a/drivers/clk/qcom/clk-pll.h
+++ b/drivers/clk/qcom/clk-pll.h
@@ -60,6 +60,8 @@ struct pll_config {
u32 aux_output_mask;
};
+void clk_pll_configure_sr(struct clk_pll *pll, struct regmap *regmap,
+ const struct pll_config *config, bool fsm_mode);
void clk_pll_configure_sr_hpm_lp(struct clk_pll *pll, struct regmap *regmap,
const struct pll_config *config, bool fsm_mode);
--
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