clk: qcom: clk-alpha-pll: use the right PCAL_DONE value for lucid pll

Lucid PCAL_DONE is different from trion. Signed-off-by: Jonathan Marek <jonathan@marek.ca> Tested-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://lore.kernel.org/r/20200709135251.643-5-jonathan@marek.ca Signed-off-by: Stephen Boyd <sboyd@kernel.org>
mariux64 · Jul 24, 2020 · d28b503 · d28b503
1 parent 0b01489
commit d28b503
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Showing 2 changed files with 27 additions and 3 deletions.
diff --git a/drivers/clk/qcom/clk-alpha-pll.c b/drivers/clk/qcom/clk-alpha-pll.c
@@ -143,6 +143,9 @@ EXPORT_SYMBOL_GPL(clk_alpha_pll_regs);
 #define TRION_PLL_CAL_VAL	0x44
 #define TRION_PCAL_DONE		BIT(26)
 
+/* LUCID PLL specific settings and offsets */
+#define LUCID_PCAL_DONE		BIT(27)
+
 #define pll_alpha_width(p)					\
 		((PLL_ALPHA_VAL_U(p) - PLL_ALPHA_VAL(p) == 4) ?	\
 				 ALPHA_REG_BITWIDTH : ALPHA_REG_16BIT_WIDTH)
@@ -1447,15 +1450,15 @@ EXPORT_SYMBOL_GPL(clk_trion_pll_configure);
  * The TRION PLL requires a power-on self-calibration which happens when the
  * PLL comes out of reset. Calibrate in case it is not completed.
  */
-static int alpha_pll_trion_prepare(struct clk_hw *hw)
+static int __alpha_pll_trion_prepare(struct clk_hw *hw, u32 pcal_done)
 {
 	struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
 	u32 regval;
 	int ret;
 
 	/* Return early if calibration is not needed. */
 	regmap_read(pll->clkr.regmap, PLL_STATUS(pll), &regval);
-	if (regval & TRION_PCAL_DONE)
+	if (regval & pcal_done)
 		return 0;
 
 	/* On/off to calibrate */
@@ -1466,6 +1469,16 @@ static int alpha_pll_trion_prepare(struct clk_hw *hw)
 	return ret;
 }
 
+static int alpha_pll_trion_prepare(struct clk_hw *hw)
+{
+	return __alpha_pll_trion_prepare(hw, TRION_PCAL_DONE);
+}
+
+static int alpha_pll_lucid_prepare(struct clk_hw *hw)
+{
+	return __alpha_pll_trion_prepare(hw, LUCID_PCAL_DONE);
+}
+
 static int alpha_pll_trion_set_rate(struct clk_hw *hw, unsigned long rate,
 				    unsigned long prate)
 {
@@ -1529,6 +1542,17 @@ const struct clk_ops clk_alpha_pll_trion_ops = {
 	.round_rate = clk_alpha_pll_round_rate,
 	.set_rate = alpha_pll_trion_set_rate,
 };
+EXPORT_SYMBOL_GPL(clk_alpha_pll_trion_ops);
+
+const struct clk_ops clk_alpha_pll_lucid_ops = {
+	.prepare = alpha_pll_lucid_prepare,
+	.enable = clk_trion_pll_enable,
+	.disable = clk_trion_pll_disable,
+	.is_enabled = clk_trion_pll_is_enabled,
+	.recalc_rate = clk_trion_pll_recalc_rate,
+	.round_rate = clk_alpha_pll_round_rate,
+	.set_rate = alpha_pll_trion_set_rate,
+};
 EXPORT_SYMBOL_GPL(clk_alpha_pll_lucid_ops);
 
 const struct clk_ops clk_alpha_pll_postdiv_lucid_ops = {

diff --git a/drivers/clk/qcom/clk-alpha-pll.h b/drivers/clk/qcom/clk-alpha-pll.h
@@ -138,7 +138,7 @@ extern const struct clk_ops clk_alpha_pll_trion_ops;
 extern const struct clk_ops clk_alpha_pll_fixed_trion_ops;
 extern const struct clk_ops clk_alpha_pll_postdiv_trion_ops;
 
-#define clk_alpha_pll_lucid_ops clk_alpha_pll_trion_ops
+extern const struct clk_ops clk_alpha_pll_lucid_ops;
 #define clk_alpha_pll_fixed_lucid_ops clk_alpha_pll_fixed_trion_ops
 extern const struct clk_ops clk_alpha_pll_postdiv_lucid_ops;