PLLs can be kept in standby (default configuration) or in off mode
when disabled during power collapse. Hence add support for pll
disable off mode for lucid evo PLL.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
---
drivers/clk/qcom/clk-alpha-pll.c | 40 +++++++++++++++++++++++++++++---
drivers/clk/qcom/clk-alpha-pll.h | 1 +
2 files changed, 38 insertions(+), 3 deletions(-)
diff --git a/drivers/clk/qcom/clk-alpha-pll.c b/drivers/clk/qcom/clk-alpha-pll.c
index 4a2d91996ce6..493cde7964f8 100644
--- a/drivers/clk/qcom/clk-alpha-pll.c
+++ b/drivers/clk/qcom/clk-alpha-pll.c
@@ -2077,7 +2077,7 @@ static int alpha_pll_lucid_evo_enable(struct clk_hw *hw)
return ret;
}
-static void alpha_pll_lucid_evo_disable(struct clk_hw *hw)
+static void _alpha_pll_lucid_evo_disable(struct clk_hw *hw, bool reset)
{
struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
struct regmap *regmap = pll->clkr.regmap;
@@ -2106,9 +2106,12 @@ static void alpha_pll_lucid_evo_disable(struct clk_hw *hw)
/* Place the PLL mode in STANDBY */
regmap_write(regmap, PLL_OPMODE(pll), PLL_STANDBY);
+
+ if (reset)
+ regmap_update_bits(regmap, PLL_MODE(pll), PLL_RESET_N, 0);
}
-static int alpha_pll_lucid_evo_prepare(struct clk_hw *hw)
+static int _alpha_pll_lucid_evo_prepare(struct clk_hw *hw, bool reset)
{
struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
struct clk_hw *p;
@@ -2128,11 +2131,31 @@ static int alpha_pll_lucid_evo_prepare(struct clk_hw *hw)
if (ret)
return ret;
- alpha_pll_lucid_evo_disable(hw);
+ _alpha_pll_lucid_evo_disable(hw, reset);
return 0;
}
+static void alpha_pll_lucid_evo_disable(struct clk_hw *hw)
+{
+ _alpha_pll_lucid_evo_disable(hw, false);
+}
+
+static int alpha_pll_lucid_evo_prepare(struct clk_hw *hw)
+{
+ return _alpha_pll_lucid_evo_prepare(hw, false);
+}
+
+static void alpha_pll_reset_lucid_evo_disable(struct clk_hw *hw)
+{
+ _alpha_pll_lucid_evo_disable(hw, true);
+}
+
+static int alpha_pll_reset_lucid_evo_prepare(struct clk_hw *hw)
+{
+ return _alpha_pll_lucid_evo_prepare(hw, true);
+}
+
static unsigned long alpha_pll_lucid_evo_recalc_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
@@ -2179,3 +2202,14 @@ const struct clk_ops clk_alpha_pll_lucid_evo_ops = {
.set_rate = alpha_pll_lucid_5lpe_set_rate,
};
EXPORT_SYMBOL_GPL(clk_alpha_pll_lucid_evo_ops);
+
+const struct clk_ops clk_alpha_pll_reset_lucid_evo_ops = {
+ .prepare = alpha_pll_reset_lucid_evo_prepare,
+ .enable = alpha_pll_lucid_evo_enable,
+ .disable = alpha_pll_reset_lucid_evo_disable,
+ .is_enabled = clk_trion_pll_is_enabled,
+ .recalc_rate = alpha_pll_lucid_evo_recalc_rate,
+ .round_rate = clk_alpha_pll_round_rate,
+ .set_rate = alpha_pll_lucid_5lpe_set_rate,
+};
+EXPORT_SYMBOL_GPL(clk_alpha_pll_reset_lucid_evo_ops);
diff --git a/drivers/clk/qcom/clk-alpha-pll.h b/drivers/clk/qcom/clk-alpha-pll.h
index 0b7a6859ca2c..f2cc0de7313c 100644
--- a/drivers/clk/qcom/clk-alpha-pll.h
+++ b/drivers/clk/qcom/clk-alpha-pll.h
@@ -154,6 +154,7 @@ extern const struct clk_ops clk_alpha_pll_zonda_ops;
#define clk_alpha_pll_postdiv_zonda_ops clk_alpha_pll_postdiv_fabia_ops
extern const struct clk_ops clk_alpha_pll_lucid_evo_ops;
+extern const struct clk_ops clk_alpha_pll_reset_lucid_evo_ops;
extern const struct clk_ops clk_alpha_pll_fixed_lucid_evo_ops;
extern const struct clk_ops clk_alpha_pll_postdiv_lucid_evo_ops;
--
2.35.1
