diff mbox series

[v4,10/18] clk: qcom: camcc-sm8550: Move PLL & clk configuration to really probe

Message ID 20250515-videocc-pll-multi-pd-voting-v4-10-571c63297d01@quicinc.com
State New
Headers show
Series clk: qcom: Add support to attach multiple power domains in cc probe | expand

Commit Message

Jagadeesh Kona May 14, 2025, 7:08 p.m. UTC 
Camera PLLs on SM8550 require both MMCX and MXC rails to be kept ON to
configure the PLLs properly. Hence move runtime power management, PLL
configuration and enabling critical clocks to qcom_cc_really_probe() which
ensures all required power domains are in enabled state before configuring
the PLLs or enabling the clocks.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Jagadeesh Kona <quic_jkona@quicinc.com>
---
 drivers/clk/qcom/camcc-sm8550.c | 85 +++++++++++++++++++++--------------------
 1 file changed, 44 insertions(+), 41 deletions(-)
diff mbox series

Patch

diff --git a/drivers/clk/qcom/camcc-sm8550.c b/drivers/clk/qcom/camcc-sm8550.c
index 871155783c798fd9245d735642272eae2a2d3465..63aed9e4c362d523093409f74ef4e57f292ddf90 100644
--- a/drivers/clk/qcom/camcc-sm8550.c
+++ b/drivers/clk/qcom/camcc-sm8550.c
@@ -7,7 +7,6 @@ 
 #include <linux/mod_devicetable.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
-#include <linux/pm_runtime.h>
 #include <linux/regmap.h>
 
 #include <dt-bindings/clock/qcom,sm8550-camcc.h>
@@ -74,6 +73,7 @@  static const struct alpha_pll_config cam_cc_pll0_config = {
 
 static struct clk_alpha_pll cam_cc_pll0 = {
 	.offset = 0x0,
+	.config = &cam_cc_pll0_config,
 	.vco_table = lucid_ole_vco,
 	.num_vco = ARRAY_SIZE(lucid_ole_vco),
 	.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_LUCID_OLE],
@@ -151,6 +151,7 @@  static const struct alpha_pll_config cam_cc_pll1_config = {
 
 static struct clk_alpha_pll cam_cc_pll1 = {
 	.offset = 0x1000,
+	.config = &cam_cc_pll1_config,
 	.vco_table = lucid_ole_vco,
 	.num_vco = ARRAY_SIZE(lucid_ole_vco),
 	.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_LUCID_OLE],
@@ -201,6 +202,7 @@  static const struct alpha_pll_config cam_cc_pll2_config = {
 
 static struct clk_alpha_pll cam_cc_pll2 = {
 	.offset = 0x2000,
+	.config = &cam_cc_pll2_config,
 	.vco_table = rivian_ole_vco,
 	.num_vco = ARRAY_SIZE(rivian_ole_vco),
 	.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_RIVIAN_EVO],
@@ -232,6 +234,7 @@  static const struct alpha_pll_config cam_cc_pll3_config = {
 
 static struct clk_alpha_pll cam_cc_pll3 = {
 	.offset = 0x3000,
+	.config = &cam_cc_pll3_config,
 	.vco_table = lucid_ole_vco,
 	.num_vco = ARRAY_SIZE(lucid_ole_vco),
 	.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_LUCID_OLE],
@@ -286,6 +289,7 @@  static const struct alpha_pll_config cam_cc_pll4_config = {
 
 static struct clk_alpha_pll cam_cc_pll4 = {
 	.offset = 0x4000,
+	.config = &cam_cc_pll4_config,
 	.vco_table = lucid_ole_vco,
 	.num_vco = ARRAY_SIZE(lucid_ole_vco),
 	.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_LUCID_OLE],
@@ -340,6 +344,7 @@  static const struct alpha_pll_config cam_cc_pll5_config = {
 
 static struct clk_alpha_pll cam_cc_pll5 = {
 	.offset = 0x5000,
+	.config = &cam_cc_pll5_config,
 	.vco_table = lucid_ole_vco,
 	.num_vco = ARRAY_SIZE(lucid_ole_vco),
 	.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_LUCID_OLE],
@@ -394,6 +399,7 @@  static const struct alpha_pll_config cam_cc_pll6_config = {
 
 static struct clk_alpha_pll cam_cc_pll6 = {
 	.offset = 0x6000,
+	.config = &cam_cc_pll6_config,
 	.vco_table = lucid_ole_vco,
 	.num_vco = ARRAY_SIZE(lucid_ole_vco),
 	.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_LUCID_OLE],
@@ -448,6 +454,7 @@  static const struct alpha_pll_config cam_cc_pll7_config = {
 
 static struct clk_alpha_pll cam_cc_pll7 = {
 	.offset = 0x7000,
+	.config = &cam_cc_pll7_config,
 	.vco_table = lucid_ole_vco,
 	.num_vco = ARRAY_SIZE(lucid_ole_vco),
 	.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_LUCID_OLE],
@@ -502,6 +509,7 @@  static const struct alpha_pll_config cam_cc_pll8_config = {
 
 static struct clk_alpha_pll cam_cc_pll8 = {
 	.offset = 0x8000,
+	.config = &cam_cc_pll8_config,
 	.vco_table = lucid_ole_vco,
 	.num_vco = ARRAY_SIZE(lucid_ole_vco),
 	.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_LUCID_OLE],
@@ -556,6 +564,7 @@  static const struct alpha_pll_config cam_cc_pll9_config = {
 
 static struct clk_alpha_pll cam_cc_pll9 = {
 	.offset = 0x9000,
+	.config = &cam_cc_pll9_config,
 	.vco_table = lucid_ole_vco,
 	.num_vco = ARRAY_SIZE(lucid_ole_vco),
 	.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_LUCID_OLE],
@@ -610,6 +619,7 @@  static const struct alpha_pll_config cam_cc_pll10_config = {
 
 static struct clk_alpha_pll cam_cc_pll10 = {
 	.offset = 0xa000,
+	.config = &cam_cc_pll10_config,
 	.vco_table = lucid_ole_vco,
 	.num_vco = ARRAY_SIZE(lucid_ole_vco),
 	.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_LUCID_OLE],
@@ -664,6 +674,7 @@  static const struct alpha_pll_config cam_cc_pll11_config = {
 
 static struct clk_alpha_pll cam_cc_pll11 = {
 	.offset = 0xb000,
+	.config = &cam_cc_pll11_config,
 	.vco_table = lucid_ole_vco,
 	.num_vco = ARRAY_SIZE(lucid_ole_vco),
 	.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_LUCID_OLE],
@@ -718,6 +729,7 @@  static const struct alpha_pll_config cam_cc_pll12_config = {
 
 static struct clk_alpha_pll cam_cc_pll12 = {
 	.offset = 0xc000,
+	.config = &cam_cc_pll12_config,
 	.vco_table = lucid_ole_vco,
 	.num_vco = ARRAY_SIZE(lucid_ole_vco),
 	.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_LUCID_OLE],
@@ -3479,6 +3491,27 @@  static const struct qcom_reset_map cam_cc_sm8550_resets[] = {
 	[CAM_CC_SFE_1_BCR] = { 0x133dc },
 };
 
+static struct clk_alpha_pll *cam_cc_sm8550_plls[] = {
+	&cam_cc_pll0,
+	&cam_cc_pll1,
+	&cam_cc_pll2,
+	&cam_cc_pll3,
+	&cam_cc_pll4,
+	&cam_cc_pll5,
+	&cam_cc_pll6,
+	&cam_cc_pll7,
+	&cam_cc_pll8,
+	&cam_cc_pll9,
+	&cam_cc_pll10,
+	&cam_cc_pll11,
+	&cam_cc_pll12,
+};
+
+static u32 cam_cc_sm8550_critical_cbcrs[] = {
+	0x1419c, /* CAM_CC_GDSC_CLK */
+	0x142cc, /* CAM_CC_SLEEP_CLK */
+};
+
 static const struct regmap_config cam_cc_sm8550_regmap_config = {
 	.reg_bits = 32,
 	.reg_stride = 4,
@@ -3487,6 +3520,13 @@  static const struct regmap_config cam_cc_sm8550_regmap_config = {
 	.fast_io = true,
 };
 
+static struct qcom_cc_driver_data cam_cc_sm8550_driver_data = {
+	.alpha_plls = cam_cc_sm8550_plls,
+	.num_alpha_plls = ARRAY_SIZE(cam_cc_sm8550_plls),
+	.clk_cbcrs = cam_cc_sm8550_critical_cbcrs,
+	.num_clk_cbcrs = ARRAY_SIZE(cam_cc_sm8550_critical_cbcrs),
+};
+
 static const struct qcom_cc_desc cam_cc_sm8550_desc = {
 	.config = &cam_cc_sm8550_regmap_config,
 	.clks = cam_cc_sm8550_clocks,
@@ -3495,6 +3535,8 @@  static const struct qcom_cc_desc cam_cc_sm8550_desc = {
 	.num_resets = ARRAY_SIZE(cam_cc_sm8550_resets),
 	.gdscs = cam_cc_sm8550_gdscs,
 	.num_gdscs = ARRAY_SIZE(cam_cc_sm8550_gdscs),
+	.use_rpm = true,
+	.driver_data = &cam_cc_sm8550_driver_data,
 };
 
 static const struct of_device_id cam_cc_sm8550_match_table[] = {
@@ -3505,46 +3547,7 @@  MODULE_DEVICE_TABLE(of, cam_cc_sm8550_match_table);
 
 static int cam_cc_sm8550_probe(struct platform_device *pdev)
 {
-	struct regmap *regmap;
-	int ret;
-
-	ret = devm_pm_runtime_enable(&pdev->dev);
-	if (ret)
-		return ret;
-
-	ret = pm_runtime_resume_and_get(&pdev->dev);
-	if (ret)
-		return ret;
-
-	regmap = qcom_cc_map(pdev, &cam_cc_sm8550_desc);
-	if (IS_ERR(regmap)) {
-		pm_runtime_put(&pdev->dev);
-		return PTR_ERR(regmap);
-	}
-
-	clk_lucid_ole_pll_configure(&cam_cc_pll0, regmap, &cam_cc_pll0_config);
-	clk_lucid_ole_pll_configure(&cam_cc_pll1, regmap, &cam_cc_pll1_config);
-	clk_rivian_evo_pll_configure(&cam_cc_pll2, regmap, &cam_cc_pll2_config);
-	clk_lucid_ole_pll_configure(&cam_cc_pll3, regmap, &cam_cc_pll3_config);
-	clk_lucid_ole_pll_configure(&cam_cc_pll4, regmap, &cam_cc_pll4_config);
-	clk_lucid_ole_pll_configure(&cam_cc_pll5, regmap, &cam_cc_pll5_config);
-	clk_lucid_ole_pll_configure(&cam_cc_pll6, regmap, &cam_cc_pll6_config);
-	clk_lucid_ole_pll_configure(&cam_cc_pll7, regmap, &cam_cc_pll7_config);
-	clk_lucid_ole_pll_configure(&cam_cc_pll8, regmap, &cam_cc_pll8_config);
-	clk_lucid_ole_pll_configure(&cam_cc_pll9, regmap, &cam_cc_pll9_config);
-	clk_lucid_ole_pll_configure(&cam_cc_pll10, regmap, &cam_cc_pll10_config);
-	clk_lucid_ole_pll_configure(&cam_cc_pll11, regmap, &cam_cc_pll11_config);
-	clk_lucid_ole_pll_configure(&cam_cc_pll12, regmap, &cam_cc_pll12_config);
-
-	/* Keep some clocks always-on */
-	qcom_branch_set_clk_en(regmap, 0x1419c); /* CAM_CC_GDSC_CLK */
-	qcom_branch_set_clk_en(regmap, 0x142cc); /* CAM_CC_SLEEP_CLK */
-
-	ret = qcom_cc_really_probe(&pdev->dev, &cam_cc_sm8550_desc, regmap);
-
-	pm_runtime_put(&pdev->dev);
-
-	return ret;
+	return qcom_cc_probe(pdev, &cam_cc_sm8550_desc);
 }
 
 static struct platform_driver cam_cc_sm8550_driver = {