diff mbox series

[3/7] clk: qcom: Add DISPCC driver support for SM4450

Message ID 20240330182817.3272224-4-quic_ajipan@quicinc.com (mailing list archive)
State Superseded, archived
Headers show
Series clk: qcom: Add support for DISPCC, CAMCC and GPUCC on SM4450 | expand

Commit Message

Ajit Pandey March 30, 2024, 6:28 p.m. UTC 
Add Display Clock Controller (DISPCC) support for SM4450 platform.

Signed-off-by: Ajit Pandey <quic_ajipan@quicinc.com>
---
 drivers/clk/qcom/Kconfig         |  10 +
 drivers/clk/qcom/Makefile        |   1 +
 drivers/clk/qcom/dispcc-sm4450.c | 781 +++++++++++++++++++++++++++++++
 3 files changed, 792 insertions(+)
 create mode 100644 drivers/clk/qcom/dispcc-sm4450.c

Comments

Dmitry Baryshkov March 31, 2024, 1:28 a.m. UTC | #1 
On Sat, 30 Mar 2024 at 20:29, Ajit Pandey <quic_ajipan@quicinc.com> wrote:
>
> Add Display Clock Controller (DISPCC) support for SM4450 platform.
>
> Signed-off-by: Ajit Pandey <quic_ajipan@quicinc.com>
> ---
>  drivers/clk/qcom/Kconfig         |  10 +
>  drivers/clk/qcom/Makefile        |   1 +
>  drivers/clk/qcom/dispcc-sm4450.c | 781 +++++++++++++++++++++++++++++++
>  3 files changed, 792 insertions(+)
>  create mode 100644 drivers/clk/qcom/dispcc-sm4450.c
>

[skipped]

> +static int disp_cc_sm4450_probe(struct platform_device *pdev)
> +{
> +       struct regmap *regmap;

Is there a MMCX power domain on the platform? See how other dispcc
drivers handle pm_runtime status.

> +
> +       regmap = qcom_cc_map(pdev, &disp_cc_sm4450_desc);
> +       if (IS_ERR(regmap))
> +               return PTR_ERR(regmap);
> +
> +       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);
> +
> +       /* Keep some clocks always enabled */
> +       qcom_branch_set_clk_en(regmap, 0xe070); /* DISP_CC_SLEEP_CLK */
> +       qcom_branch_set_clk_en(regmap, 0xe054); /* DISP_CC_XO_CLK */
> +
> +       return qcom_cc_really_probe(pdev, &disp_cc_sm4450_desc, regmap);
> +}
> +
> +static struct platform_driver disp_cc_sm4450_driver = {
> +       .probe = disp_cc_sm4450_probe,
> +       .driver = {
> +               .name = "dispcc-sm4450",
> +               .of_match_table = disp_cc_sm4450_match_table,
> +       },
> +};
> +
> +module_platform_driver(disp_cc_sm4450_driver);
> +
> +MODULE_DESCRIPTION("QTI DISPCC SM4450 Driver");
> +MODULE_LICENSE("GPL");
> --
> 2.25.1
>
>
Ajit Pandey April 2, 2024, 6:16 p.m. UTC | #2 
On 3/31/2024 6:58 AM, Dmitry Baryshkov wrote:
> On Sat, 30 Mar 2024 at 20:29, Ajit Pandey <quic_ajipan@quicinc.com> wrote:
>>
>> Add Display Clock Controller (DISPCC) support for SM4450 platform.
>>
>> Signed-off-by: Ajit Pandey <quic_ajipan@quicinc.com>
>> ---
>>   drivers/clk/qcom/Kconfig         |  10 +
>>   drivers/clk/qcom/Makefile        |   1 +
>>   drivers/clk/qcom/dispcc-sm4450.c | 781 +++++++++++++++++++++++++++++++
>>   3 files changed, 792 insertions(+)
>>   create mode 100644 drivers/clk/qcom/dispcc-sm4450.c
>>
> 
> [skipped]
> 
>> +static int disp_cc_sm4450_probe(struct platform_device *pdev)
>> +{
>> +       struct regmap *regmap;
> 
> Is there a MMCX power domain on the platform? See how other dispcc
> drivers handle pm_runtime status.
> 
Thanks for review , actually SM4450 doesn't support MMCX power domain 
pm_rumtime support is not required here.
>> +
>> +       regmap = qcom_cc_map(pdev, &disp_cc_sm4450_desc);
>> +       if (IS_ERR(regmap))
>> +               return PTR_ERR(regmap);
>> +
>> +       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);
>> +
>> +       /* Keep some clocks always enabled */
>> +       qcom_branch_set_clk_en(regmap, 0xe070); /* DISP_CC_SLEEP_CLK */
>> +       qcom_branch_set_clk_en(regmap, 0xe054); /* DISP_CC_XO_CLK */
>> +
>> +       return qcom_cc_really_probe(pdev, &disp_cc_sm4450_desc, regmap);
>> +}
>> +
>> +static struct platform_driver disp_cc_sm4450_driver = {
>> +       .probe = disp_cc_sm4450_probe,
>> +       .driver = {
>> +               .name = "dispcc-sm4450",
>> +               .of_match_table = disp_cc_sm4450_match_table,
>> +       },
>> +};
>> +
>> +module_platform_driver(disp_cc_sm4450_driver);
>> +
>> +MODULE_DESCRIPTION("QTI DISPCC SM4450 Driver");
>> +MODULE_LICENSE("GPL");
>> --
>> 2.25.1
>>
>>
> 
>
diff mbox series

Patch

diff --git a/drivers/clk/qcom/Kconfig b/drivers/clk/qcom/Kconfig
index 8ab08e7b5b6c..9fce64ced353 100644
--- a/drivers/clk/qcom/Kconfig
+++ b/drivers/clk/qcom/Kconfig
@@ -826,6 +826,16 @@  config SM_CAMCC_8550
 	  Support for the camera clock controller on SM8550 devices.
 	  Say Y if you want to support camera devices and camera functionality.
 
+config SM_DISPCC_4450
+	tristate "SM4450 Display Clock Controller"
+	depends on ARM64 || COMPILE_TEST
+	depends on SM_GCC_4450
+	help
+	  Support for the display clock controller on Qualcomm Technologies, Inc
+	  SM4450 devices.
+	  Say Y if you want to support display devices and functionality such as
+	  splash screen
+
 config SM_DISPCC_6115
 	tristate "SM6115 Display Clock Controller"
 	depends on ARM64 || COMPILE_TEST
diff --git a/drivers/clk/qcom/Makefile b/drivers/clk/qcom/Makefile
index dec5b6db6860..68d1c5192c86 100644
--- a/drivers/clk/qcom/Makefile
+++ b/drivers/clk/qcom/Makefile
@@ -109,6 +109,7 @@  obj-$(CONFIG_SM_CAMCC_6350) += camcc-sm6350.o
 obj-$(CONFIG_SM_CAMCC_8250) += camcc-sm8250.o
 obj-$(CONFIG_SM_CAMCC_8450) += camcc-sm8450.o
 obj-$(CONFIG_SM_CAMCC_8550) += camcc-sm8550.o
+obj-$(CONFIG_SM_DISPCC_4450) += dispcc-sm4450.o
 obj-$(CONFIG_SM_DISPCC_6115) += dispcc-sm6115.o
 obj-$(CONFIG_SM_DISPCC_6125) += dispcc-sm6125.o
 obj-$(CONFIG_SM_DISPCC_6350) += dispcc-sm6350.o
diff --git a/drivers/clk/qcom/dispcc-sm4450.c b/drivers/clk/qcom/dispcc-sm4450.c
new file mode 100644
index 000000000000..7668b4bafae5
--- /dev/null
+++ b/drivers/clk/qcom/dispcc-sm4450.c
@@ -0,0 +1,781 @@ 
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2024, Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/module.h>
+#include <linux/mod_devicetable.h>
+#include <linux/of.h>
+#include <linux/regmap.h>
+#include <linux/platform_device.h>
+
+#include <dt-bindings/clock/qcom,sm4450-dispcc.h>
+
+#include "clk-alpha-pll.h"
+#include "clk-branch.h"
+#include "clk-pll.h"
+#include "clk-rcg.h"
+#include "clk-regmap.h"
+#include "clk-regmap-divider.h"
+#include "common.h"
+#include "gdsc.h"
+#include "reset.h"
+
+enum {
+	DT_BI_TCXO,
+	DT_BI_TCXO_AO,
+	DT_AHB_CLK,
+	DT_SLEEP_CLK,
+
+	DT_DSI0_PHY_PLL_OUT_BYTECLK,
+	DT_DSI0_PHY_PLL_OUT_DSICLK,
+};
+
+enum {
+	P_BI_TCXO,
+	P_DISP_CC_PLL0_OUT_MAIN,
+	P_DISP_CC_PLL1_OUT_EVEN,
+	P_DISP_CC_PLL1_OUT_MAIN,
+	P_DSI0_PHY_PLL_OUT_BYTECLK,
+	P_DSI0_PHY_PLL_OUT_DSICLK,
+	P_SLEEP_CLK,
+};
+
+static const struct pll_vco lucid_evo_vco[] = {
+	{ 249600000, 2020000000, 0 },
+};
+
+/* 600.0 MHz Configuration */
+static const struct alpha_pll_config disp_cc_pll0_config = {
+	.l = 0x1f,
+	.alpha = 0x4000,
+	.config_ctl_val = 0x20485699,
+	.config_ctl_hi_val = 0x00182261,
+	.config_ctl_hi1_val = 0x32aa299c,
+	.user_ctl_val = 0x00000000,
+	.user_ctl_hi_val = 0x00000805,
+};
+
+static struct clk_alpha_pll disp_cc_pll0 = {
+	.offset = 0x0,
+	.vco_table = lucid_evo_vco,
+	.num_vco = ARRAY_SIZE(lucid_evo_vco),
+	.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_LUCID_EVO],
+	.clkr = {
+		.hw.init = &(const struct clk_init_data) {
+			.name = "disp_cc_pll0",
+			.parent_data = &(const struct clk_parent_data) {
+				.index = DT_BI_TCXO,
+			},
+			.num_parents = 1,
+			.ops = &clk_alpha_pll_lucid_evo_ops,
+		},
+	},
+};
+
+/* 600.0 MHz Configuration */
+static const struct alpha_pll_config disp_cc_pll1_config = {
+	.l = 0x1f,
+	.alpha = 0x4000,
+	.config_ctl_val = 0x20485699,
+	.config_ctl_hi_val = 0x00182261,
+	.config_ctl_hi1_val = 0x32aa299c,
+	.user_ctl_val = 0x00000000,
+	.user_ctl_hi_val = 0x00000805,
+};
+
+static struct clk_alpha_pll disp_cc_pll1 = {
+	.offset = 0x1000,
+	.vco_table = lucid_evo_vco,
+	.num_vco = ARRAY_SIZE(lucid_evo_vco),
+	.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_LUCID_EVO],
+	.clkr = {
+		.hw.init = &(const struct clk_init_data) {
+			.name = "disp_cc_pll1",
+			.parent_data = &(const struct clk_parent_data) {
+				.index = DT_BI_TCXO,
+			},
+			.num_parents = 1,
+			.ops = &clk_alpha_pll_lucid_evo_ops,
+		},
+	},
+};
+
+static const struct parent_map disp_cc_parent_map_0[] = {
+	{ P_BI_TCXO, 0 },
+	{ P_DSI0_PHY_PLL_OUT_DSICLK, 1 },
+	{ P_DSI0_PHY_PLL_OUT_BYTECLK, 2 },
+};
+
+static const struct clk_parent_data disp_cc_parent_data_0[] = {
+	{ .index = DT_BI_TCXO },
+	{ .index = DT_DSI0_PHY_PLL_OUT_DSICLK },
+	{ .index = DT_DSI0_PHY_PLL_OUT_BYTECLK },
+};
+
+static const struct parent_map disp_cc_parent_map_1[] = {
+	{ P_BI_TCXO, 0 },
+	{ P_DISP_CC_PLL0_OUT_MAIN, 1 },
+	{ P_DISP_CC_PLL1_OUT_MAIN, 4 },
+	{ P_DISP_CC_PLL1_OUT_EVEN, 6 },
+};
+
+static const struct clk_parent_data disp_cc_parent_data_1[] = {
+	{ .index = DT_BI_TCXO },
+	{ .hw = &disp_cc_pll0.clkr.hw },
+	{ .hw = &disp_cc_pll1.clkr.hw },
+	{ .hw = &disp_cc_pll1.clkr.hw },
+};
+
+static const struct parent_map disp_cc_parent_map_2[] = {
+	{ P_BI_TCXO, 0 },
+};
+
+static const struct clk_parent_data disp_cc_parent_data_2[] = {
+	{ .index = DT_BI_TCXO },
+};
+
+static const struct clk_parent_data disp_cc_parent_data_2_ao[] = {
+	{ .index = DT_BI_TCXO_AO },
+};
+
+static const struct parent_map disp_cc_parent_map_3[] = {
+	{ P_BI_TCXO, 0 },
+	{ P_DISP_CC_PLL1_OUT_MAIN, 4 },
+	{ P_DISP_CC_PLL1_OUT_EVEN, 6 },
+};
+
+static const struct clk_parent_data disp_cc_parent_data_3[] = {
+	{ .index = DT_BI_TCXO },
+	{ .hw = &disp_cc_pll1.clkr.hw },
+	{ .hw = &disp_cc_pll1.clkr.hw },
+};
+
+static const struct parent_map disp_cc_parent_map_4[] = {
+	{ P_BI_TCXO, 0 },
+	{ P_DSI0_PHY_PLL_OUT_BYTECLK, 2 },
+};
+
+static const struct clk_parent_data disp_cc_parent_data_4[] = {
+	{ .index = DT_BI_TCXO },
+	{ .index = DT_DSI0_PHY_PLL_OUT_BYTECLK },
+};
+
+static const struct parent_map disp_cc_parent_map_5[] = {
+	{ P_SLEEP_CLK, 0 },
+};
+
+static const struct clk_parent_data disp_cc_parent_data_5[] = {
+	{ .index = DT_SLEEP_CLK },
+};
+
+static const struct freq_tbl ftbl_disp_cc_mdss_ahb_clk_src[] = {
+	F(19200000, P_BI_TCXO, 1, 0, 0),
+	F(37500000, P_DISP_CC_PLL1_OUT_MAIN, 16, 0, 0),
+	F(75000000, P_DISP_CC_PLL1_OUT_MAIN, 8, 0, 0),
+	{ }
+};
+
+static struct clk_rcg2 disp_cc_mdss_ahb_clk_src = {
+	.cmd_rcgr = 0x82a4,
+	.mnd_width = 0,
+	.hid_width = 5,
+	.parent_map = disp_cc_parent_map_3,
+	.freq_tbl = ftbl_disp_cc_mdss_ahb_clk_src,
+	.clkr.hw.init = &(const struct clk_init_data) {
+		.name = "disp_cc_mdss_ahb_clk_src",
+		.parent_data = disp_cc_parent_data_3,
+		.num_parents = ARRAY_SIZE(disp_cc_parent_data_3),
+		.flags = CLK_SET_RATE_PARENT,
+		.ops = &clk_rcg2_shared_ops,
+	},
+};
+
+static const struct freq_tbl ftbl_disp_cc_mdss_byte0_clk_src[] = {
+	F(19200000, P_BI_TCXO, 1, 0, 0),
+	{ }
+};
+
+static struct clk_rcg2 disp_cc_mdss_byte0_clk_src = {
+	.cmd_rcgr = 0x80f8,
+	.mnd_width = 0,
+	.hid_width = 5,
+	.parent_map = disp_cc_parent_map_0,
+	.freq_tbl = ftbl_disp_cc_mdss_byte0_clk_src,
+	.clkr.hw.init = &(const struct clk_init_data) {
+		.name = "disp_cc_mdss_byte0_clk_src",
+		.parent_data = disp_cc_parent_data_0,
+		.num_parents = ARRAY_SIZE(disp_cc_parent_data_0),
+		.flags = CLK_SET_RATE_PARENT,
+		.ops = &clk_byte2_ops,
+	},
+};
+
+static struct clk_rcg2 disp_cc_mdss_esc0_clk_src = {
+	.cmd_rcgr = 0x8114,
+	.mnd_width = 0,
+	.hid_width = 5,
+	.parent_map = disp_cc_parent_map_4,
+	.freq_tbl = ftbl_disp_cc_mdss_byte0_clk_src,
+	.clkr.hw.init = &(const struct clk_init_data) {
+		.name = "disp_cc_mdss_esc0_clk_src",
+		.parent_data = disp_cc_parent_data_4,
+		.num_parents = ARRAY_SIZE(disp_cc_parent_data_4),
+		.flags = CLK_SET_RATE_PARENT,
+		.ops = &clk_rcg2_shared_ops,
+	},
+};
+
+static const struct freq_tbl ftbl_disp_cc_mdss_mdp_clk_src[] = {
+	F(200000000, P_DISP_CC_PLL0_OUT_MAIN, 3, 0, 0),
+	F(325000000, P_DISP_CC_PLL0_OUT_MAIN, 3, 0, 0),
+	F(380000000, P_DISP_CC_PLL0_OUT_MAIN, 3, 0, 0),
+	F(506000000, P_DISP_CC_PLL0_OUT_MAIN, 3, 0, 0),
+	F(608000000, P_DISP_CC_PLL0_OUT_MAIN, 3, 0, 0),
+	{ }
+};
+
+static struct clk_rcg2 disp_cc_mdss_mdp_clk_src = {
+	.cmd_rcgr = 0x80b0,
+	.mnd_width = 0,
+	.hid_width = 5,
+	.parent_map = disp_cc_parent_map_1,
+	.freq_tbl = ftbl_disp_cc_mdss_mdp_clk_src,
+	.clkr.hw.init = &(const struct clk_init_data) {
+		.name = "disp_cc_mdss_mdp_clk_src",
+		.parent_data = disp_cc_parent_data_1,
+		.num_parents = ARRAY_SIZE(disp_cc_parent_data_1),
+		.flags = CLK_SET_RATE_PARENT,
+		.ops = &clk_rcg2_shared_ops,
+	},
+};
+
+static struct clk_rcg2 disp_cc_mdss_pclk0_clk_src = {
+	.cmd_rcgr = 0x8098,
+	.mnd_width = 8,
+	.hid_width = 5,
+	.parent_map = disp_cc_parent_map_0,
+	.freq_tbl = ftbl_disp_cc_mdss_byte0_clk_src,
+	.clkr.hw.init = &(const struct clk_init_data) {
+		.name = "disp_cc_mdss_pclk0_clk_src",
+		.parent_data = disp_cc_parent_data_0,
+		.num_parents = ARRAY_SIZE(disp_cc_parent_data_0),
+		.flags = CLK_SET_RATE_PARENT,
+		.ops = &clk_pixel_ops,
+	},
+};
+
+static const struct freq_tbl ftbl_disp_cc_mdss_rot_clk_src[] = {
+	F(200000000, P_DISP_CC_PLL1_OUT_MAIN, 3, 0, 0),
+	F(300000000, P_DISP_CC_PLL1_OUT_MAIN, 2, 0, 0),
+	{ }
+};
+
+static struct clk_rcg2 disp_cc_mdss_rot_clk_src = {
+	.cmd_rcgr = 0x80c8,
+	.mnd_width = 0,
+	.hid_width = 5,
+	.parent_map = disp_cc_parent_map_1,
+	.freq_tbl = ftbl_disp_cc_mdss_rot_clk_src,
+	.clkr.hw.init = &(const struct clk_init_data) {
+		.name = "disp_cc_mdss_rot_clk_src",
+		.parent_data = disp_cc_parent_data_1,
+		.num_parents = ARRAY_SIZE(disp_cc_parent_data_1),
+		.flags = CLK_SET_RATE_PARENT,
+		.ops = &clk_rcg2_shared_ops,
+	},
+};
+
+static struct clk_rcg2 disp_cc_mdss_vsync_clk_src = {
+	.cmd_rcgr = 0x80e0,
+	.mnd_width = 0,
+	.hid_width = 5,
+	.parent_map = disp_cc_parent_map_2,
+	.freq_tbl = ftbl_disp_cc_mdss_byte0_clk_src,
+	.clkr.hw.init = &(const struct clk_init_data) {
+		.name = "disp_cc_mdss_vsync_clk_src",
+		.parent_data = disp_cc_parent_data_2,
+		.num_parents = ARRAY_SIZE(disp_cc_parent_data_2),
+		.flags = CLK_SET_RATE_PARENT,
+		.ops = &clk_rcg2_shared_ops,
+	},
+};
+
+static const struct freq_tbl ftbl_disp_cc_sleep_clk_src[] = {
+	F(32000, P_SLEEP_CLK, 1, 0, 0),
+	{ }
+};
+
+static struct clk_rcg2 disp_cc_sleep_clk_src = {
+	.cmd_rcgr = 0xe058,
+	.mnd_width = 0,
+	.hid_width = 5,
+	.parent_map = disp_cc_parent_map_5,
+	.freq_tbl = ftbl_disp_cc_sleep_clk_src,
+	.clkr.hw.init = &(const struct clk_init_data) {
+		.name = "disp_cc_sleep_clk_src",
+		.parent_data = disp_cc_parent_data_5,
+		.num_parents = ARRAY_SIZE(disp_cc_parent_data_5),
+		.flags = CLK_SET_RATE_PARENT,
+		.ops = &clk_rcg2_shared_ops,
+	},
+};
+
+static struct clk_rcg2 disp_cc_xo_clk_src = {
+	.cmd_rcgr = 0xe03c,
+	.mnd_width = 0,
+	.hid_width = 5,
+	.parent_map = disp_cc_parent_map_2,
+	.freq_tbl = ftbl_disp_cc_mdss_byte0_clk_src,
+	.clkr.hw.init = &(const struct clk_init_data) {
+		.name = "disp_cc_xo_clk_src",
+		.parent_data = disp_cc_parent_data_2_ao,
+		.num_parents = ARRAY_SIZE(disp_cc_parent_data_2_ao),
+		.flags = CLK_SET_RATE_PARENT,
+		.ops = &clk_rcg2_shared_ops,
+	},
+};
+
+static struct clk_regmap_div disp_cc_mdss_byte0_div_clk_src = {
+	.reg = 0x8110,
+	.shift = 0,
+	.width = 4,
+	.clkr.hw.init = &(const struct clk_init_data) {
+		.name = "disp_cc_mdss_byte0_div_clk_src",
+		.parent_hws = (const struct clk_hw*[]) {
+			&disp_cc_mdss_byte0_clk_src.clkr.hw,
+		},
+		.num_parents = 1,
+		.flags = CLK_SET_RATE_PARENT,
+		.ops = &clk_regmap_div_ops,
+	},
+};
+
+static struct clk_branch disp_cc_mdss_ahb1_clk = {
+	.halt_reg = 0xa020,
+	.halt_check = BRANCH_HALT,
+	.clkr = {
+		.enable_reg = 0xa020,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "disp_cc_mdss_ahb1_clk",
+			.parent_hws = (const struct clk_hw*[]) {
+				&disp_cc_mdss_ahb_clk_src.clkr.hw,
+			},
+			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch disp_cc_mdss_ahb_clk = {
+	.halt_reg = 0x8094,
+	.halt_check = BRANCH_HALT,
+	.clkr = {
+		.enable_reg = 0x8094,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "disp_cc_mdss_ahb_clk",
+			.parent_hws = (const struct clk_hw*[]) {
+				&disp_cc_mdss_ahb_clk_src.clkr.hw,
+			},
+			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch disp_cc_mdss_byte0_clk = {
+	.halt_reg = 0x8024,
+	.halt_check = BRANCH_HALT,
+	.clkr = {
+		.enable_reg = 0x8024,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "disp_cc_mdss_byte0_clk",
+			.parent_hws = (const struct clk_hw*[]) {
+				&disp_cc_mdss_byte0_clk_src.clkr.hw,
+			},
+			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch disp_cc_mdss_byte0_intf_clk = {
+	.halt_reg = 0x8028,
+	.halt_check = BRANCH_HALT,
+	.clkr = {
+		.enable_reg = 0x8028,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "disp_cc_mdss_byte0_intf_clk",
+			.parent_hws = (const struct clk_hw*[]) {
+				&disp_cc_mdss_byte0_div_clk_src.clkr.hw,
+			},
+			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch disp_cc_mdss_esc0_clk = {
+	.halt_reg = 0x802c,
+	.halt_check = BRANCH_HALT,
+	.clkr = {
+		.enable_reg = 0x802c,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "disp_cc_mdss_esc0_clk",
+			.parent_hws = (const struct clk_hw*[]) {
+				&disp_cc_mdss_esc0_clk_src.clkr.hw,
+			},
+			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch disp_cc_mdss_mdp1_clk = {
+	.halt_reg = 0xa004,
+	.halt_check = BRANCH_HALT,
+	.clkr = {
+		.enable_reg = 0xa004,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "disp_cc_mdss_mdp1_clk",
+			.parent_hws = (const struct clk_hw*[]) {
+				&disp_cc_mdss_mdp_clk_src.clkr.hw,
+			},
+			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch disp_cc_mdss_mdp_clk = {
+	.halt_reg = 0x8008,
+	.halt_check = BRANCH_HALT,
+	.clkr = {
+		.enable_reg = 0x8008,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "disp_cc_mdss_mdp_clk",
+			.parent_hws = (const struct clk_hw*[]) {
+				&disp_cc_mdss_mdp_clk_src.clkr.hw,
+			},
+			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch disp_cc_mdss_mdp_lut1_clk = {
+	.halt_reg = 0xa014,
+	.halt_check = BRANCH_HALT,
+	.clkr = {
+		.enable_reg = 0xa014,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "disp_cc_mdss_mdp_lut1_clk",
+			.parent_hws = (const struct clk_hw*[]) {
+				&disp_cc_mdss_mdp_clk_src.clkr.hw,
+			},
+			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch disp_cc_mdss_mdp_lut_clk = {
+	.halt_reg = 0x8018,
+	.halt_check = BRANCH_HALT_VOTED,
+	.clkr = {
+		.enable_reg = 0x8018,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "disp_cc_mdss_mdp_lut_clk",
+			.parent_hws = (const struct clk_hw*[]) {
+				&disp_cc_mdss_mdp_clk_src.clkr.hw,
+			},
+			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch disp_cc_mdss_non_gdsc_ahb_clk = {
+	.halt_reg = 0xc004,
+	.halt_check = BRANCH_HALT_VOTED,
+	.clkr = {
+		.enable_reg = 0xc004,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "disp_cc_mdss_non_gdsc_ahb_clk",
+			.parent_hws = (const struct clk_hw*[]) {
+				&disp_cc_mdss_ahb_clk_src.clkr.hw,
+			},
+			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch disp_cc_mdss_pclk0_clk = {
+	.halt_reg = 0x8004,
+	.halt_check = BRANCH_HALT,
+	.clkr = {
+		.enable_reg = 0x8004,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "disp_cc_mdss_pclk0_clk",
+			.parent_hws = (const struct clk_hw*[]) {
+				&disp_cc_mdss_pclk0_clk_src.clkr.hw,
+			},
+			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch disp_cc_mdss_rot1_clk = {
+	.halt_reg = 0xa00c,
+	.halt_check = BRANCH_HALT,
+	.clkr = {
+		.enable_reg = 0xa00c,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "disp_cc_mdss_rot1_clk",
+			.parent_hws = (const struct clk_hw*[]) {
+				&disp_cc_mdss_rot_clk_src.clkr.hw,
+			},
+			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch disp_cc_mdss_rot_clk = {
+	.halt_reg = 0x8010,
+	.halt_check = BRANCH_HALT,
+	.clkr = {
+		.enable_reg = 0x8010,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "disp_cc_mdss_rot_clk",
+			.parent_hws = (const struct clk_hw*[]) {
+				&disp_cc_mdss_rot_clk_src.clkr.hw,
+			},
+			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch disp_cc_mdss_rscc_ahb_clk = {
+	.halt_reg = 0xc00c,
+	.halt_check = BRANCH_HALT,
+	.clkr = {
+		.enable_reg = 0xc00c,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "disp_cc_mdss_rscc_ahb_clk",
+			.parent_hws = (const struct clk_hw*[]) {
+				&disp_cc_mdss_ahb_clk_src.clkr.hw,
+			},
+			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch disp_cc_mdss_rscc_vsync_clk = {
+	.halt_reg = 0xc008,
+	.halt_check = BRANCH_HALT,
+	.clkr = {
+		.enable_reg = 0xc008,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "disp_cc_mdss_rscc_vsync_clk",
+			.parent_hws = (const struct clk_hw*[]) {
+				&disp_cc_mdss_vsync_clk_src.clkr.hw,
+			},
+			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch disp_cc_mdss_vsync1_clk = {
+	.halt_reg = 0xa01c,
+	.halt_check = BRANCH_HALT,
+	.clkr = {
+		.enable_reg = 0xa01c,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "disp_cc_mdss_vsync1_clk",
+			.parent_hws = (const struct clk_hw*[]) {
+				&disp_cc_mdss_vsync_clk_src.clkr.hw,
+			},
+			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch disp_cc_mdss_vsync_clk = {
+	.halt_reg = 0x8020,
+	.halt_check = BRANCH_HALT,
+	.clkr = {
+		.enable_reg = 0x8020,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "disp_cc_mdss_vsync_clk",
+			.parent_hws = (const struct clk_hw*[]) {
+				&disp_cc_mdss_vsync_clk_src.clkr.hw,
+			},
+			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct gdsc disp_cc_mdss_core_gdsc = {
+	.gdscr = 0x9000,
+	.en_rest_wait_val = 0x2,
+	.en_few_wait_val = 0x2,
+	.clk_dis_wait_val = 0xf,
+	.pd = {
+		.name = "disp_cc_mdss_core_gdsc",
+	},
+	.pwrsts = PWRSTS_OFF_ON,
+	.flags = HW_CTRL | POLL_CFG_GDSCR | RETAIN_FF_ENABLE,
+};
+
+static struct gdsc disp_cc_mdss_core_int2_gdsc = {
+	.gdscr = 0xb000,
+	.en_rest_wait_val = 0x2,
+	.en_few_wait_val = 0x2,
+	.clk_dis_wait_val = 0xf,
+	.pd = {
+		.name = "disp_cc_mdss_core_int2_gdsc",
+	},
+	.pwrsts = PWRSTS_OFF_ON,
+	.flags = HW_CTRL | POLL_CFG_GDSCR | RETAIN_FF_ENABLE,
+};
+
+static struct clk_regmap *disp_cc_sm4450_clocks[] = {
+	[DISP_CC_MDSS_AHB1_CLK] = &disp_cc_mdss_ahb1_clk.clkr,
+	[DISP_CC_MDSS_AHB_CLK] = &disp_cc_mdss_ahb_clk.clkr,
+	[DISP_CC_MDSS_AHB_CLK_SRC] = &disp_cc_mdss_ahb_clk_src.clkr,
+	[DISP_CC_MDSS_BYTE0_CLK] = &disp_cc_mdss_byte0_clk.clkr,
+	[DISP_CC_MDSS_BYTE0_CLK_SRC] = &disp_cc_mdss_byte0_clk_src.clkr,
+	[DISP_CC_MDSS_BYTE0_DIV_CLK_SRC] = &disp_cc_mdss_byte0_div_clk_src.clkr,
+	[DISP_CC_MDSS_BYTE0_INTF_CLK] = &disp_cc_mdss_byte0_intf_clk.clkr,
+	[DISP_CC_MDSS_ESC0_CLK] = &disp_cc_mdss_esc0_clk.clkr,
+	[DISP_CC_MDSS_ESC0_CLK_SRC] = &disp_cc_mdss_esc0_clk_src.clkr,
+	[DISP_CC_MDSS_MDP1_CLK] = &disp_cc_mdss_mdp1_clk.clkr,
+	[DISP_CC_MDSS_MDP_CLK] = &disp_cc_mdss_mdp_clk.clkr,
+	[DISP_CC_MDSS_MDP_CLK_SRC] = &disp_cc_mdss_mdp_clk_src.clkr,
+	[DISP_CC_MDSS_MDP_LUT1_CLK] = &disp_cc_mdss_mdp_lut1_clk.clkr,
+	[DISP_CC_MDSS_MDP_LUT_CLK] = &disp_cc_mdss_mdp_lut_clk.clkr,
+	[DISP_CC_MDSS_NON_GDSC_AHB_CLK] = &disp_cc_mdss_non_gdsc_ahb_clk.clkr,
+	[DISP_CC_MDSS_PCLK0_CLK] = &disp_cc_mdss_pclk0_clk.clkr,
+	[DISP_CC_MDSS_PCLK0_CLK_SRC] = &disp_cc_mdss_pclk0_clk_src.clkr,
+	[DISP_CC_MDSS_ROT1_CLK] = &disp_cc_mdss_rot1_clk.clkr,
+	[DISP_CC_MDSS_ROT_CLK] = &disp_cc_mdss_rot_clk.clkr,
+	[DISP_CC_MDSS_ROT_CLK_SRC] = &disp_cc_mdss_rot_clk_src.clkr,
+	[DISP_CC_MDSS_RSCC_AHB_CLK] = &disp_cc_mdss_rscc_ahb_clk.clkr,
+	[DISP_CC_MDSS_RSCC_VSYNC_CLK] = &disp_cc_mdss_rscc_vsync_clk.clkr,
+	[DISP_CC_MDSS_VSYNC1_CLK] = &disp_cc_mdss_vsync1_clk.clkr,
+	[DISP_CC_MDSS_VSYNC_CLK] = &disp_cc_mdss_vsync_clk.clkr,
+	[DISP_CC_MDSS_VSYNC_CLK_SRC] = &disp_cc_mdss_vsync_clk_src.clkr,
+	[DISP_CC_PLL0] = &disp_cc_pll0.clkr,
+	[DISP_CC_PLL1] = &disp_cc_pll1.clkr,
+	[DISP_CC_SLEEP_CLK_SRC] = &disp_cc_sleep_clk_src.clkr,
+	[DISP_CC_XO_CLK_SRC] = &disp_cc_xo_clk_src.clkr,
+};
+
+static struct gdsc *disp_cc_sm4450_gdscs[] = {
+	[DISP_CC_MDSS_CORE_GDSC] = &disp_cc_mdss_core_gdsc,
+	[DISP_CC_MDSS_CORE_INT2_GDSC] = &disp_cc_mdss_core_int2_gdsc,
+};
+
+static const struct qcom_reset_map disp_cc_sm4450_resets[] = {
+	[DISP_CC_MDSS_CORE_BCR] = { 0x8000 },
+	[DISP_CC_MDSS_CORE_INT2_BCR] = { 0xa000 },
+	[DISP_CC_MDSS_RSCC_BCR] = { 0xc000 },
+};
+
+static const struct regmap_config disp_cc_sm4450_regmap_config = {
+	.reg_bits = 32,
+	.reg_stride = 4,
+	.val_bits = 32,
+	.max_register = 0x11008,
+	.fast_io = true,
+};
+
+static struct qcom_cc_desc disp_cc_sm4450_desc = {
+	.config = &disp_cc_sm4450_regmap_config,
+	.clks = disp_cc_sm4450_clocks,
+	.num_clks = ARRAY_SIZE(disp_cc_sm4450_clocks),
+	.resets = disp_cc_sm4450_resets,
+	.num_resets = ARRAY_SIZE(disp_cc_sm4450_resets),
+	.gdscs = disp_cc_sm4450_gdscs,
+	.num_gdscs = ARRAY_SIZE(disp_cc_sm4450_gdscs),
+};
+
+static const struct of_device_id disp_cc_sm4450_match_table[] = {
+	{ .compatible = "qcom,sm4450-dispcc" },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, disp_cc_sm4450_match_table);
+
+static int disp_cc_sm4450_probe(struct platform_device *pdev)
+{
+	struct regmap *regmap;
+
+	regmap = qcom_cc_map(pdev, &disp_cc_sm4450_desc);
+	if (IS_ERR(regmap))
+		return PTR_ERR(regmap);
+
+	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);
+
+	/* Keep some clocks always enabled */
+	qcom_branch_set_clk_en(regmap, 0xe070); /* DISP_CC_SLEEP_CLK */
+	qcom_branch_set_clk_en(regmap, 0xe054); /* DISP_CC_XO_CLK */
+
+	return qcom_cc_really_probe(pdev, &disp_cc_sm4450_desc, regmap);
+}
+
+static struct platform_driver disp_cc_sm4450_driver = {
+	.probe = disp_cc_sm4450_probe,
+	.driver = {
+		.name = "dispcc-sm4450",
+		.of_match_table = disp_cc_sm4450_match_table,
+	},
+};
+
+module_platform_driver(disp_cc_sm4450_driver);
+
+MODULE_DESCRIPTION("QTI DISPCC SM4450 Driver");
+MODULE_LICENSE("GPL");