linux-kernel - [PATCH V5 2/5] clk: qcom: clk-alpha-pll: Add support for lucid ole pll configure

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Message-ID: <20230623164619.11464-3-quic_jkona@quicinc.com>
Date:   Fri, 23 Jun 2023 22:16:16 +0530
From:   Jagadeesh Kona <quic_jkona@...cinc.com>
To:     Andy Gross <agross@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>
CC:     Bjorn Andersson <andersson@...nel.org>,
        Vladimir Zapolskiy <vladimir.zapolskiy@...aro.org>,
        <linux-arm-msm@...r.kernel.org>, <linux-clk@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Taniya Das <quic_tdas@...cinc.com>,
        "Jagadeesh Kona" <quic_jkona@...cinc.com>,
        Satya Priya Kakitapalli <quic_skakitap@...cinc.com>,
        Imran Shaik <quic_imrashai@...cinc.com>,
        "Ajit Pandey" <quic_ajipan@...cinc.com>
Subject: [PATCH V5 2/5] clk: qcom: clk-alpha-pll: Add support for lucid ole pll configure

Lucid ole pll has as extra RINGOSC_CAL_L field in L register in
addition to the fields that are part of lucid evo pll, hence add
support for lucid ole pll configure function to configure the ole plls.

Signed-off-by: Jagadeesh Kona <quic_jkona@...cinc.com>
---
Changes since v4:
 - Newly added in v5

 drivers/clk/qcom/clk-alpha-pll.c | 29 +++++++++++++++++++++++++++++
 drivers/clk/qcom/clk-alpha-pll.h |  2 ++
 2 files changed, 31 insertions(+)

diff --git a/drivers/clk/qcom/clk-alpha-pll.c b/drivers/clk/qcom/clk-alpha-pll.c
index e4ef645f65d1..4edbf77f3360 100644
--- a/drivers/clk/qcom/clk-alpha-pll.c
+++ b/drivers/clk/qcom/clk-alpha-pll.c
@@ -271,6 +271,7 @@ EXPORT_SYMBOL_GPL(clk_alpha_pll_regs);
 #define LUCID_EVO_ENABLE_VOTE_RUN       BIT(25)
 #define LUCID_EVO_PLL_L_VAL_MASK        GENMASK(15, 0)
 #define LUCID_EVO_PLL_CAL_L_VAL_SHIFT	16
+#define LUCID_OLE_PLL_RINGOSC_CAL_L_VAL_SHIFT	24
 
 /* ZONDA PLL specific */
 #define ZONDA_PLL_OUT_MASK	0xf
@@ -2119,6 +2120,34 @@ void clk_lucid_evo_pll_configure(struct clk_alpha_pll *pll, struct regmap *regma
 }
 EXPORT_SYMBOL_GPL(clk_lucid_evo_pll_configure);
 
+void clk_lucid_ole_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap,
+				 const struct alpha_pll_config *config)
+{
+	u32 lval = config->l;
+
+	lval |= TRION_PLL_CAL_VAL << LUCID_EVO_PLL_CAL_L_VAL_SHIFT;
+	lval |= TRION_PLL_CAL_VAL << LUCID_OLE_PLL_RINGOSC_CAL_L_VAL_SHIFT;
+	clk_alpha_pll_write_config(regmap, PLL_L_VAL(pll), lval);
+	clk_alpha_pll_write_config(regmap, PLL_ALPHA_VAL(pll), config->alpha);
+	clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL(pll), config->config_ctl_val);
+	clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL_U(pll), config->config_ctl_hi_val);
+	clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL_U1(pll), config->config_ctl_hi1_val);
+	clk_alpha_pll_write_config(regmap, PLL_USER_CTL(pll), config->user_ctl_val);
+	clk_alpha_pll_write_config(regmap, PLL_USER_CTL_U(pll), config->user_ctl_hi_val);
+	clk_alpha_pll_write_config(regmap, PLL_TEST_CTL(pll), config->test_ctl_val);
+	clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U(pll), config->test_ctl_hi_val);
+	clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U1(pll), config->test_ctl_hi1_val);
+	clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U2(pll), config->test_ctl_hi2_val);
+
+	/* Disable PLL output */
+	regmap_update_bits(regmap, PLL_MODE(pll), PLL_OUTCTRL, 0);
+
+	/* Set operation mode to STANDBY and de-assert the reset */
+	regmap_write(regmap, PLL_OPMODE(pll), PLL_STANDBY);
+	regmap_update_bits(regmap, PLL_MODE(pll), PLL_RESET_N, PLL_RESET_N);
+}
+EXPORT_SYMBOL_GPL(clk_lucid_ole_pll_configure);
+
 static int alpha_pll_lucid_evo_enable(struct clk_hw *hw)
 {
 	struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
diff --git a/drivers/clk/qcom/clk-alpha-pll.h b/drivers/clk/qcom/clk-alpha-pll.h
index e4bd863027ab..3b24a660daac 100644
--- a/drivers/clk/qcom/clk-alpha-pll.h
+++ b/drivers/clk/qcom/clk-alpha-pll.h
@@ -199,6 +199,8 @@ void clk_zonda_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap,
 			     const struct alpha_pll_config *config);
 void clk_lucid_evo_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap,
 				 const struct alpha_pll_config *config);
+void clk_lucid_ole_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap,
+				 const struct alpha_pll_config *config);
 void clk_rivian_evo_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap,
 				  const struct alpha_pll_config *config);
 void clk_stromer_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap,
-- 
2.40.1