linux-kernel - [PATCH 2/6] clk: qcom: msm8996-cpu: Statically define PLL dividers

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Message-Id: <20220621160621.24415-3-y.oudjana@protonmail.com>
Date:   Tue, 21 Jun 2022 20:06:17 +0400
From:   Yassine Oudjana <yassine.oudjana@...il.com>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...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>,
        Loic Poulain <loic.poulain@...aro.org>
Cc:     Yassine Oudjana <y.oudjana@...tonmail.com>,
        Yassine Oudjana <yassine.oudjana@...il.com>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...ainline.org>,
        Martin Botka <martin.botka@...ainline.org>,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        Jami Kettunen <jami.kettunen@...ainline.org>,
        linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 2/6] clk: qcom: msm8996-cpu: Statically define PLL dividers

From: Yassine Oudjana <y.oudjana@...tonmail.com>

This will allow for adding them to clk_parent_data arrays
in an upcoming patch.

Signed-off-by: Yassine Oudjana <y.oudjana@...tonmail.com>
---
 drivers/clk/qcom/clk-cpu-8996.c | 66 +++++++++++++++++++++------------
 1 file changed, 42 insertions(+), 24 deletions(-)

diff --git a/drivers/clk/qcom/clk-cpu-8996.c b/drivers/clk/qcom/clk-cpu-8996.c
index 5dc68dc3621f..217f9392c23d 100644
--- a/drivers/clk/qcom/clk-cpu-8996.c
+++ b/drivers/clk/qcom/clk-cpu-8996.c
@@ -135,6 +135,34 @@ static struct clk_alpha_pll pwrcl_pll = {
 	},
 };
 
+static struct clk_fixed_factor pwrcl_pll_postdiv = {
+	.mult = 1,
+	.div = 2,
+	.hw.init = &(struct clk_init_data){
+		.name = "pwrcl_pll_postdiv",
+		.parent_data = &(const struct clk_parent_data){
+			.hw = &pwrcl_pll.clkr.hw
+		},
+		.num_parents = 1,
+		.ops = &clk_fixed_factor_ops,
+		.flags = CLK_SET_RATE_PARENT,
+	},
+};
+
+static struct clk_fixed_factor perfcl_pll_postdiv = {
+	.mult = 1,
+	.div = 2,
+	.hw.init = &(struct clk_init_data){
+		.name = "perfcl_pll_postdiv",
+		.parent_data = &(const struct clk_parent_data){
+			.hw = &perfcl_pll.clkr.hw
+		},
+		.num_parents = 1,
+		.ops = &clk_fixed_factor_ops,
+		.flags = CLK_SET_RATE_PARENT,
+	},
+};
+
 static const struct pll_vco alt_pll_vco_modes[] = {
 	VCO(3,  250000000,  500000000),
 	VCO(2,  500000000,  750000000),
@@ -261,7 +289,7 @@ static struct clk_cpu_8996_mux pwrcl_smux = {
 		.name = "pwrcl_smux",
 		.parent_names = (const char *[]){
 			"xo",
-			"pwrcl_pll_main",
+			"pwrcl_pll_postdiv",
 		},
 		.num_parents = 2,
 		.ops = &clk_cpu_8996_mux_ops,
@@ -277,7 +305,7 @@ static struct clk_cpu_8996_mux perfcl_smux = {
 		.name = "perfcl_smux",
 		.parent_names = (const char *[]){
 			"xo",
-			"perfcl_pll_main",
+			"perfcl_pll_postdiv",
 		},
 		.num_parents = 2,
 		.ops = &clk_cpu_8996_mux_ops,
@@ -354,32 +382,25 @@ static int qcom_cpu_clk_msm8996_register_clks(struct device *dev,
 {
 	int i, ret;
 
-	perfcl_smux.pll = clk_hw_register_fixed_factor(dev, "perfcl_pll_main",
-						       "perfcl_pll",
-						       CLK_SET_RATE_PARENT,
-						       1, 2);
-	if (IS_ERR(perfcl_smux.pll)) {
-		dev_err(dev, "Failed to initialize perfcl_pll_main\n");
-		return PTR_ERR(perfcl_smux.pll);
+	ret = devm_clk_hw_register(dev, &pwrcl_pll_postdiv.hw);
+	if (ret) {
+		dev_err(dev, "Failed to register pwrcl_pll_postdiv: %d", ret);
+		return ret;
 	}
 
-	pwrcl_smux.pll = clk_hw_register_fixed_factor(dev, "pwrcl_pll_main",
-						      "pwrcl_pll",
-						      CLK_SET_RATE_PARENT,
-						      1, 2);
-	if (IS_ERR(pwrcl_smux.pll)) {
-		dev_err(dev, "Failed to initialize pwrcl_pll_main\n");
-		clk_hw_unregister(perfcl_smux.pll);
-		return PTR_ERR(pwrcl_smux.pll);
+	ret = devm_clk_hw_register(dev, &perfcl_pll_postdiv.hw);
+	if (ret) {
+		dev_err(dev, "Failed to register perfcl_pll_postdiv: %d", ret);
+		return ret;
 	}
 
+	pwrcl_smux.pll = &pwrcl_pll_postdiv.hw;
+	perfcl_smux.pll = &perfcl_pll_postdiv.hw;
+
 	for (i = 0; i < ARRAY_SIZE(cpu_msm8996_clks); i++) {
 		ret = devm_clk_register_regmap(dev, cpu_msm8996_clks[i]);
-		if (ret) {
-			clk_hw_unregister(perfcl_smux.pll);
-			clk_hw_unregister(pwrcl_smux.pll);
+		if (ret)
 			return ret;
-		}
 	}
 
 	clk_alpha_pll_configure(&perfcl_pll, regmap, &hfpll_config);
@@ -409,9 +430,6 @@ static int qcom_cpu_clk_msm8996_unregister_clks(void)
 	if (ret)
 		return ret;
 
-	clk_hw_unregister(perfcl_smux.pll);
-	clk_hw_unregister(pwrcl_smux.pll);
-
 	return 0;
 }
 
-- 
2.36.1