clk: qcom: dispcc-sm8450: Add SM8475 support

Add support to the SM8475 display clock controller by extending the
SM8450 display clock controller, which is almost identical but has
some minor differences.

Signed-off-by: Danila Tikhonov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Bjorn Andersson <[email protected]>

Author: JIaxyga

drivers/clk/qcom/Kconfig

@@ -952,7 +952,7 @@ config SM_DISPCC_8450
 	depends on SM_GCC_8450
 	help
 	  Support for the display clock controller on Qualcomm Technologies, Inc
-	  SM8450 devices.
+	  SM8450 or SM8475 devices.
 	  Say Y if you want to support display devices and functionality such as
 	  splash screen.
 

drivers/clk/qcom/dispcc-sm8450.c

@@ -85,6 +85,29 @@ static const struct alpha_pll_config disp_cc_pll0_config = {
 	.user_ctl_hi_val = 0x00000805,
 };
 
+static const struct alpha_pll_config sm8475_disp_cc_pll0_config = {
+	.l = 0xd,
+	.alpha = 0x6492,
+	.config_ctl_val = 0x20485699,
+	.config_ctl_hi_val = 0x00182261,
+	.config_ctl_hi1_val = 0x82aa299c,
+	.test_ctl_val = 0x00000000,
+	.test_ctl_hi_val = 0x00000003,
+	.test_ctl_hi1_val = 0x00009000,
+	.test_ctl_hi2_val = 0x00000034,
+	.user_ctl_val = 0x00000000,
+	.user_ctl_hi_val = 0x00000005,
+};
+
+static struct clk_init_data sm8475_disp_cc_pll0_init = {
+	.name = "disp_cc_pll0",
+	.parent_data = &(const struct clk_parent_data) {
+		.index = DT_BI_TCXO,
+	},
+	.num_parents = 1,
+	.ops = &clk_alpha_pll_reset_lucid_ole_ops,
+};
+
 static struct clk_alpha_pll disp_cc_pll0 = {
 	.offset = 0x0,
 	.vco_table = lucid_evo_vco,
@@ -112,6 +135,29 @@ static const struct alpha_pll_config disp_cc_pll1_config = {
 	.user_ctl_hi_val = 0x00000805,
 };
 
+static const struct alpha_pll_config sm8475_disp_cc_pll1_config = {
+	.l = 0x1f,
+	.alpha = 0x4000,
+	.config_ctl_val = 0x20485699,
+	.config_ctl_hi_val = 0x00182261,
+	.config_ctl_hi1_val = 0x82aa299c,
+	.test_ctl_val = 0x00000000,
+	.test_ctl_hi_val = 0x00000003,
+	.test_ctl_hi1_val = 0x00009000,
+	.test_ctl_hi2_val = 0x00000034,
+	.user_ctl_val = 0x00000000,
+	.user_ctl_hi_val = 0x00000005,
+};
+
+static struct clk_init_data sm8475_disp_cc_pll1_init = {
+	.name = "disp_cc_pll1",
+	.parent_data = &(const struct clk_parent_data) {
+		.index = DT_BI_TCXO,
+	},
+	.num_parents = 1,
+	.ops = &clk_alpha_pll_reset_lucid_ole_ops,
+};
+
 static struct clk_alpha_pll disp_cc_pll1 = {
 	.offset = 0x1000,
 	.vco_table = lucid_evo_vco,
@@ -1746,6 +1792,7 @@ static struct qcom_cc_desc disp_cc_sm8450_desc = {
 
 static const struct of_device_id disp_cc_sm8450_match_table[] = {
 	{ .compatible = "qcom,sm8450-dispcc" },
+	{ .compatible = "qcom,sm8475-dispcc" },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, disp_cc_sm8450_match_table);
@@ -1769,8 +1816,21 @@ static int disp_cc_sm8450_probe(struct platform_device *pdev)
 		goto err_put_rpm;
 	}
 
-	clk_lucid_evo_pll_configure(&disp_cc_pll0, regmap, &disp_cc_pll0_config);
-	clk_lucid_evo_pll_configure(&disp_cc_pll1, regmap, &disp_cc_pll1_config);
+	if (of_device_is_compatible(pdev->dev.of_node, "qcom,sm8475-dispcc")) {
+		/* Update DISPCC PLL0 */
+		disp_cc_pll0.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_LUCID_OLE];
+		disp_cc_pll0.clkr.hw.init = &sm8475_disp_cc_pll0_init;
+
+		/* Update DISPCC PLL1 */
+		disp_cc_pll1.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_LUCID_OLE];
+		disp_cc_pll1.clkr.hw.init = &sm8475_disp_cc_pll1_init;
+
+		clk_lucid_ole_pll_configure(&disp_cc_pll0, regmap, &sm8475_disp_cc_pll0_config);
+		clk_lucid_ole_pll_configure(&disp_cc_pll1, regmap, &sm8475_disp_cc_pll1_config);
+	} else {
+		clk_lucid_evo_pll_configure(&disp_cc_pll0, regmap, &disp_cc_pll0_config);
+		clk_lucid_evo_pll_configure(&disp_cc_pll1, regmap, &disp_cc_pll1_config);
+	}
 
 	/* Enable clock gating for MDP clocks */
 	regmap_update_bits(regmap, DISP_CC_MISC_CMD, 0x10, 0x10);
@@ -1802,5 +1862,5 @@ static struct platform_driver disp_cc_sm8450_driver = {
 
 module_platform_driver(disp_cc_sm8450_driver);
 
-MODULE_DESCRIPTION("QTI DISPCC SM8450 Driver");
+MODULE_DESCRIPTION("QTI DISPCC SM8450 / SM8475 Driver");
 MODULE_LICENSE("GPL");