clk: qcom: add video clock controller driver for SM8250 (0e94711a) · Commits · EulixOS / Software / Kernel

drivers/clk/qcom/Kconfig

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		@@ -453,6 +453,15 @@ config SM_VIDEOCC_8150
		Say Y if you want to support video devices and functionality such as
		video encode and decode.

		config SM_VIDEOCC_8250
		tristate "SM8250 Video Clock Controller"
		select SDM_GCC_8250
		select QCOM_GDSC
		help
		Support for the video clock controller on SM8250 devices.
		Say Y if you want to support video devices and functionality such as
		video encode and decode.

		config SPMI_PMIC_CLKDIV
		tristate "SPMI PMIC clkdiv Support"
		depends on SPMI \|\| COMPILE_TEST

drivers/clk/qcom/Makefile

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		@@ -69,6 +69,7 @@ obj-$(CONFIG_SM_GCC_8250) += gcc-sm8250.o
		obj-$(CONFIG_SM_GPUCC_8150) += gpucc-sm8150.o
		obj-$(CONFIG_SM_GPUCC_8250) += gpucc-sm8250.o
		obj-$(CONFIG_SM_VIDEOCC_8150) += videocc-sm8150.o
		obj-$(CONFIG_SM_VIDEOCC_8250) += videocc-sm8250.o
		obj-$(CONFIG_SPMI_PMIC_CLKDIV) += clk-spmi-pmic-div.o
		obj-$(CONFIG_KPSS_XCC) += kpss-xcc.o
		obj-$(CONFIG_QCOM_HFPLL) += hfpll.o

drivers/clk/qcom/videocc-sm8250.c

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		// SPDX-License-Identifier: GPL-2.0-only
		/*
		* Copyright (c) 2018-2020, The Linux Foundation. All rights reserved.
		*/

		#include <linux/clk-provider.h>
		#include <linux/module.h>
		#include <linux/platform_device.h>
		#include <linux/regmap.h>

		#include <dt-bindings/clock/qcom,videocc-sm8250.h>

		#include "clk-alpha-pll.h"
		#include "clk-branch.h"
		#include "clk-rcg.h"
		#include "clk-regmap.h"
		#include "clk-regmap-divider.h"
		#include "common.h"
		#include "reset.h"
		#include "gdsc.h"

		enum {
		P_BI_TCXO,
		P_CHIP_SLEEP_CLK,
		P_CORE_BI_PLL_TEST_SE,
		P_VIDEO_PLL0_OUT_MAIN,
		P_VIDEO_PLL1_OUT_MAIN,
		};

		static struct pll_vco lucid_vco[] = {
		{ 249600000, 2000000000, 0 },
		};

		static const struct alpha_pll_config video_pll0_config = {
		.l = 0x25,
		.alpha = 0x8000,
		.config_ctl_val = 0x20485699,
		.config_ctl_hi_val = 0x00002261,
		.config_ctl_hi1_val = 0x329A699C,
		.user_ctl_val = 0x00000000,
		.user_ctl_hi_val = 0x00000805,
		.user_ctl_hi1_val = 0x00000000,
		};

		static struct clk_alpha_pll video_pll0 = {
		.offset = 0x42c,
		.vco_table = lucid_vco,
		.num_vco = ARRAY_SIZE(lucid_vco),
		.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_LUCID],
		.clkr = {
		.hw.init = &(struct clk_init_data){
		.name = "video_pll0",
		.parent_data = &(const struct clk_parent_data){
		.fw_name = "bi_tcxo",
		},
		.num_parents = 1,
		.ops = &clk_alpha_pll_lucid_ops,
		},
		},
		};

		static const struct alpha_pll_config video_pll1_config = {
		.l = 0x2B,
		.alpha = 0xC000,
		.config_ctl_val = 0x20485699,
		.config_ctl_hi_val = 0x00002261,
		.config_ctl_hi1_val = 0x329A699C,
		.user_ctl_val = 0x00000000,
		.user_ctl_hi_val = 0x00000805,
		.user_ctl_hi1_val = 0x00000000,
		};

		static struct clk_alpha_pll video_pll1 = {
		.offset = 0x7d0,
		.vco_table = lucid_vco,
		.num_vco = ARRAY_SIZE(lucid_vco),
		.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_LUCID],
		.clkr = {
		.hw.init = &(struct clk_init_data){
		.name = "video_pll1",
		.parent_data = &(const struct clk_parent_data){
		.fw_name = "bi_tcxo",
		},
		.num_parents = 1,
		.ops = &clk_alpha_pll_lucid_ops,
		},
		},
		};

		static const struct parent_map video_cc_parent_map_1[] = {
		{ P_BI_TCXO, 0 },
		{ P_VIDEO_PLL0_OUT_MAIN, 1 },
		};

		static const struct clk_parent_data video_cc_parent_data_1[] = {
		{ .fw_name = "bi_tcxo" },
		{ .hw = &video_pll0.clkr.hw },
		};

		static const struct parent_map video_cc_parent_map_2[] = {
		{ P_BI_TCXO, 0 },
		{ P_VIDEO_PLL1_OUT_MAIN, 1 },
		};

		static const struct clk_parent_data video_cc_parent_data_2[] = {
		{ .fw_name = "bi_tcxo" },
		{ .hw = &video_pll1.clkr.hw },
		};

		static const struct freq_tbl ftbl_video_cc_mvs0_clk_src[] = {
		F(19200000, P_BI_TCXO, 1, 0, 0),
		F(720000000, P_VIDEO_PLL0_OUT_MAIN, 1, 0, 0),
		F(1014000000, P_VIDEO_PLL0_OUT_MAIN, 1, 0, 0),
		F(1098000000, P_VIDEO_PLL0_OUT_MAIN, 1, 0, 0),
		F(1332000000, P_VIDEO_PLL0_OUT_MAIN, 1, 0, 0),
		{ }
		};

		static struct clk_rcg2 video_cc_mvs0_clk_src = {
		.cmd_rcgr = 0xb94,
		.mnd_width = 0,
		.hid_width = 5,
		.parent_map = video_cc_parent_map_1,
		.freq_tbl = ftbl_video_cc_mvs0_clk_src,
		.clkr.hw.init = &(struct clk_init_data){
		.name = "video_cc_mvs0_clk_src",
		.parent_data = video_cc_parent_data_1,
		.num_parents = ARRAY_SIZE(video_cc_parent_data_1),
		.flags = CLK_SET_RATE_PARENT,
		.ops = &clk_rcg2_shared_ops,
		},
		};

		static const struct freq_tbl ftbl_video_cc_mvs1_clk_src[] = {
		F(19200000, P_BI_TCXO, 1, 0, 0),
		F(840000000, P_VIDEO_PLL1_OUT_MAIN, 1, 0, 0),
		F(1098000000, P_VIDEO_PLL1_OUT_MAIN, 1, 0, 0),
		F(1332000000, P_VIDEO_PLL1_OUT_MAIN, 1, 0, 0),
		{ }
		};

		static struct clk_rcg2 video_cc_mvs1_clk_src = {
		.cmd_rcgr = 0xbb4,
		.mnd_width = 0,
		.hid_width = 5,
		.parent_map = video_cc_parent_map_2,
		.freq_tbl = ftbl_video_cc_mvs1_clk_src,
		.clkr.hw.init = &(struct clk_init_data){
		.name = "video_cc_mvs1_clk_src",
		.parent_data = video_cc_parent_data_2,
		.num_parents = ARRAY_SIZE(video_cc_parent_data_2),
		.flags = CLK_SET_RATE_PARENT,
		.ops = &clk_rcg2_shared_ops,
		},
		};

		static struct clk_regmap_div video_cc_mvs0c_div2_div_clk_src = {
		.reg = 0xc54,
		.shift = 0,
		.width = 2,
		.clkr.hw.init = &(struct clk_init_data) {
		.name = "video_cc_mvs0c_div2_div_clk_src",
		.parent_data = &(const struct clk_parent_data){
		.hw = &video_cc_mvs0_clk_src.clkr.hw,
		},
		.num_parents = 1,
		.flags = CLK_SET_RATE_PARENT,
		.ops = &clk_regmap_div_ro_ops,
		},
		};

		static struct clk_regmap_div video_cc_mvs1c_div2_div_clk_src = {
		.reg = 0xcf4,
		.shift = 0,
		.width = 2,
		.clkr.hw.init = &(struct clk_init_data) {
		.name = "video_cc_mvs1c_div2_div_clk_src",
		.parent_data = &(const struct clk_parent_data){
		.hw = &video_cc_mvs1_clk_src.clkr.hw,
		},
		.num_parents = 1,
		.flags = CLK_SET_RATE_PARENT,
		.ops = &clk_regmap_div_ro_ops,
		},
		};

		static struct clk_branch video_cc_mvs0c_clk = {
		.halt_reg = 0xc34,
		.halt_check = BRANCH_HALT,
		.clkr = {
		.enable_reg = 0xc34,
		.enable_mask = BIT(0),
		.hw.init = &(struct clk_init_data){
		.name = "video_cc_mvs0c_clk",
		.parent_data = &(const struct clk_parent_data){
		.hw = &video_cc_mvs0c_div2_div_clk_src.clkr.hw,
		},
		.num_parents = 1,
		.flags = CLK_SET_RATE_PARENT,
		.ops = &clk_branch2_ops,
		},
		},
		};

		static struct clk_branch video_cc_mvs1_div2_clk = {
		.halt_reg = 0xdf4,
		.halt_check = BRANCH_HALT_VOTED,
		.clkr = {
		.enable_reg = 0xdf4,
		.enable_mask = BIT(0),
		.hw.init = &(struct clk_init_data){
		.name = "video_cc_mvs1_div2_clk",
		.parent_data = &(const struct clk_parent_data){
		.hw = &video_cc_mvs1c_div2_div_clk_src.clkr.hw,
		},
		.num_parents = 1,
		.flags = CLK_SET_RATE_PARENT,
		.ops = &clk_branch2_ops,
		},
		},
		};

		static struct clk_branch video_cc_mvs1c_clk = {
		.halt_reg = 0xcd4,
		.halt_check = BRANCH_HALT_VOTED,
		.clkr = {
		.enable_reg = 0xcd4,
		.enable_mask = BIT(0),
		.hw.init = &(struct clk_init_data){
		.name = "video_cc_mvs1c_clk",
		.parent_data = &(const struct clk_parent_data){
		.hw = &video_cc_mvs1c_div2_div_clk_src.clkr.hw,
		},
		.num_parents = 1,
		.flags = CLK_SET_RATE_PARENT,
		.ops = &clk_branch2_ops,
		},
		},
		};

		static struct gdsc mvs0c_gdsc = {
		.gdscr = 0xbf8,
		.pd = {
		.name = "mvs0c_gdsc",
		},
		.flags = 0,
		.pwrsts = PWRSTS_OFF_ON,
		};

		static struct gdsc mvs1c_gdsc = {
		.gdscr = 0xc98,
		.pd = {
		.name = "mvs1c_gdsc",
		},
		.flags = 0,
		.pwrsts = PWRSTS_OFF_ON,
		};

		static struct gdsc mvs0_gdsc = {
		.gdscr = 0xd18,
		.pd = {
		.name = "mvs0_gdsc",
		},
		.flags = HW_CTRL,
		.pwrsts = PWRSTS_OFF_ON,
		};

		static struct gdsc mvs1_gdsc = {
		.gdscr = 0xd98,
		.pd = {
		.name = "mvs1_gdsc",
		},
		.flags = HW_CTRL,
		.pwrsts = PWRSTS_OFF_ON,
		};

		static struct clk_regmap *video_cc_sm8250_clocks[] = {
		[VIDEO_CC_MVS0_CLK_SRC] = &video_cc_mvs0_clk_src.clkr,
		[VIDEO_CC_MVS0C_CLK] = &video_cc_mvs0c_clk.clkr,
		[VIDEO_CC_MVS0C_DIV2_DIV_CLK_SRC] = &video_cc_mvs0c_div2_div_clk_src.clkr,
		[VIDEO_CC_MVS1_CLK_SRC] = &video_cc_mvs1_clk_src.clkr,
		[VIDEO_CC_MVS1_DIV2_CLK] = &video_cc_mvs1_div2_clk.clkr,
		[VIDEO_CC_MVS1C_CLK] = &video_cc_mvs1c_clk.clkr,
		[VIDEO_CC_MVS1C_DIV2_DIV_CLK_SRC] = &video_cc_mvs1c_div2_div_clk_src.clkr,
		[VIDEO_CC_PLL0] = &video_pll0.clkr,
		[VIDEO_CC_PLL1] = &video_pll1.clkr,
		};

		static const struct qcom_reset_map video_cc_sm8250_resets[] = {
		[VIDEO_CC_CVP_INTERFACE_BCR] = { 0xe54 },
		[VIDEO_CC_CVP_MVS0_BCR] = { 0xd14 },
		[VIDEO_CC_MVS0C_CLK_ARES] = { 0xc34, 2 },
		[VIDEO_CC_CVP_MVS0C_BCR] = { 0xbf4 },
		[VIDEO_CC_CVP_MVS1_BCR] = { 0xd94 },
		[VIDEO_CC_MVS1C_CLK_ARES] = { 0xcd4, 2 },
		[VIDEO_CC_CVP_MVS1C_BCR] = { 0xc94 },
		};

		static struct gdsc *video_cc_sm8250_gdscs[] = {
		[MVS0C_GDSC] = &mvs0c_gdsc,
		[MVS1C_GDSC] = &mvs1c_gdsc,
		[MVS0_GDSC] = &mvs0_gdsc,
		[MVS1_GDSC] = &mvs1_gdsc,
		};

		static const struct regmap_config video_cc_sm8250_regmap_config = {
		.reg_bits = 32,
		.reg_stride = 4,
		.val_bits = 32,
		.max_register = 0xf4c,
		.fast_io = true,
		};

		static const struct qcom_cc_desc video_cc_sm8250_desc = {
		.config = &video_cc_sm8250_regmap_config,
		.clks = video_cc_sm8250_clocks,
		.num_clks = ARRAY_SIZE(video_cc_sm8250_clocks),
		.resets = video_cc_sm8250_resets,
		.num_resets = ARRAY_SIZE(video_cc_sm8250_resets),
		.gdscs = video_cc_sm8250_gdscs,
		.num_gdscs = ARRAY_SIZE(video_cc_sm8250_gdscs),
		};

		static const struct of_device_id video_cc_sm8250_match_table[] = {
		{ .compatible = "qcom,sm8250-videocc" },
		{ }
		};
		MODULE_DEVICE_TABLE(of, video_cc_sm8250_match_table);

		static int video_cc_sm8250_probe(struct platform_device *pdev)
		{
		struct regmap *regmap;

		regmap = qcom_cc_map(pdev, &video_cc_sm8250_desc);
		if (IS_ERR(regmap))
		return PTR_ERR(regmap);

		clk_lucid_pll_configure(&video_pll0, regmap, &video_pll0_config);
		clk_lucid_pll_configure(&video_pll1, regmap, &video_pll1_config);

		/* Keep VIDEO_CC_AHB_CLK and VIDEO_CC_XO_CLK ALWAYS-ON */
		regmap_update_bits(regmap, 0xe58, BIT(0), BIT(0));
		regmap_update_bits(regmap, 0xeec, BIT(0), BIT(0));

		return qcom_cc_really_probe(pdev, &video_cc_sm8250_desc, regmap);
		}

		static struct platform_driver video_cc_sm8250_driver = {
		.probe = video_cc_sm8250_probe,
		.driver = {
		.name = "sm8250-videocc",
		.of_match_table = video_cc_sm8250_match_table,
		},
		};

		static int __init video_cc_sm8250_init(void)
		{
		return platform_driver_register(&video_cc_sm8250_driver);
		}
		subsys_initcall(video_cc_sm8250_init);

		static void __exit video_cc_sm8250_exit(void)
		{
		platform_driver_unregister(&video_cc_sm8250_driver);
		}
		module_exit(video_cc_sm8250_exit);

		MODULE_LICENSE("GPL v2");
		MODULE_DESCRIPTION("QTI VIDEOCC SM8250 Driver");