clk: qcom: Add Video Clock Controller driver for SM7150

Add support for the video clock controller found on SM7150.
Signed-off-by: Danila Tikhonov <danila@jiaxyga.com>
Link: https://lore.kernel.org/r/20240505201038.276047-9-danila@jiaxyga.comSigned-off-by: Bjorn Andersson <andersson@kernel.org>

drivers/clk/qcom/Kconfig

@@ -1137,6 +1137,16 @@ config SM_TCSRCC_8650
 	  Support for the TCSR clock controller on SM8650 devices.
 	  Say Y if you want to use peripheral devices such as SD/UFS.
 
+config SM_VIDEOCC_7150
+	tristate "SM7150 Video Clock Controller"
+	depends on ARM64 || COMPILE_TEST
+	select SM_GCC_7150
+	select QCOM_GDSC
+	help
+	  Support for the video clock controller on SM7150 devices.
+	  Say Y if you want to support video devices and functionality such as
+	  video encode and decode.
+
 config SM_VIDEOCC_8150
 	tristate "SM8150 Video Clock Controller"
 	depends on ARM64 || COMPILE_TEST

drivers/clk/qcom/Makefile

@@ -143,6 +143,7 @@ obj-$(CONFIG_SM_GPUCC_8550) += gpucc-sm8550.o
 obj-$(CONFIG_SM_GPUCC_8650) += gpucc-sm8650.o
 obj-$(CONFIG_SM_TCSRCC_8550) += tcsrcc-sm8550.o
 obj-$(CONFIG_SM_TCSRCC_8650) += tcsrcc-sm8650.o
+obj-$(CONFIG_SM_VIDEOCC_7150) += videocc-sm7150.o
 obj-$(CONFIG_SM_VIDEOCC_8150) += videocc-sm8150.o
 obj-$(CONFIG_SM_VIDEOCC_8250) += videocc-sm8250.o
 obj-$(CONFIG_SM_VIDEOCC_8350) += videocc-sm8350.o

drivers/clk/qcom/videocc-sm7150.c

+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2018, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2024, Danila Tikhonov <danila@jiaxyga.com>
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/mod_devicetable.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+
+#include <dt-bindings/clock/qcom,sm7150-videocc.h>
+
+#include "common.h"
+#include "clk-alpha-pll.h"
+#include "clk-branch.h"
+#include "clk-rcg.h"
+#include "clk-regmap.h"
+#include "clk-pll.h"
+#include "gdsc.h"
+
+enum {
+	DT_BI_TCXO,
+	DT_BI_TCXO_AO,
+};
+
+enum {
+	P_BI_TCXO,
+	P_VIDEOCC_PLL0_OUT_EVEN,
+	P_VIDEOCC_PLL0_OUT_MAIN,
+	P_VIDEOCC_PLL0_OUT_ODD,
+};
+
+static const struct pll_vco fabia_vco[] = {
+	{ 249600000, 2000000000, 0 },
+	{ 125000000, 1000000000, 1 },
+};
+
+static struct alpha_pll_config videocc_pll0_config = {
+	.l = 0x19,
+	.alpha = 0x0,
+	.config_ctl_val = 0x20485699,
+	.config_ctl_hi_val = 0x00002067,
+	.user_ctl_val = 0x00000001,
+	.user_ctl_hi_val = 0x00004805,
+	.test_ctl_hi_val = 0x40000000,
+};
+
+static struct clk_alpha_pll videocc_pll0 = {
+	.offset = 0x42c,
+	.vco_table = fabia_vco,
+	.num_vco = ARRAY_SIZE(fabia_vco),
+	.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_FABIA],
+	.clkr = {
+		.hw.init = &(const struct clk_init_data) {
+			.name = "videocc_pll0",
+			.parent_data = &(const struct clk_parent_data) {
+				.index = DT_BI_TCXO,
+			},
+			.num_parents = 1,
+			.ops = &clk_alpha_pll_fabia_ops,
+		},
+	},
+};
+
+static const struct parent_map videocc_parent_map_0[] = {
+	{ P_BI_TCXO, 0 },
+	{ P_VIDEOCC_PLL0_OUT_MAIN, 1 },
+	{ P_VIDEOCC_PLL0_OUT_EVEN, 2 },
+	{ P_VIDEOCC_PLL0_OUT_ODD, 3 },
+};
+
+static const struct clk_parent_data videocc_parent_data_0[] = {
+	{ .index = DT_BI_TCXO },
+	{ .hw = &videocc_pll0.clkr.hw },
+	{ .hw = &videocc_pll0.clkr.hw },
+	{ .hw = &videocc_pll0.clkr.hw },
+};
+
+static const struct parent_map videocc_parent_map_1[] = {
+	{ P_BI_TCXO, 0 },
+};
+
+static const struct clk_parent_data videocc_parent_data_1[] = {
+	{ .index = DT_BI_TCXO_AO },
+};
+
+static const struct freq_tbl ftbl_videocc_iris_clk_src[] = {
+	F(240000000, P_VIDEOCC_PLL0_OUT_MAIN, 2, 0, 0),
+	F(338000000, P_VIDEOCC_PLL0_OUT_MAIN, 2, 0, 0),
+	F(365000000, P_VIDEOCC_PLL0_OUT_MAIN, 2, 0, 0),
+	F(444000000, P_VIDEOCC_PLL0_OUT_MAIN, 2, 0, 0),
+	F(533000000, P_VIDEOCC_PLL0_OUT_MAIN, 2, 0, 0),
+	{ }
+};
+
+static struct clk_rcg2 videocc_iris_clk_src = {
+	.cmd_rcgr = 0x7f0,
+	.mnd_width = 0,
+	.hid_width = 5,
+	.parent_map = videocc_parent_map_0,
+	.freq_tbl = ftbl_videocc_iris_clk_src,
+	.clkr.hw.init = &(const struct clk_init_data) {
+		.name = "videocc_iris_clk_src",
+		.parent_data = videocc_parent_data_0,
+		.num_parents = ARRAY_SIZE(videocc_parent_data_0),
+		.flags = CLK_SET_RATE_PARENT,
+		.ops = &clk_rcg2_shared_ops,
+	},
+};
+
+static const struct freq_tbl ftbl_videocc_xo_clk_src[] = {
+	F(19200000, P_BI_TCXO, 1, 0, 0),
+	{ }
+};
+
+static struct clk_rcg2 videocc_xo_clk_src = {
+	.cmd_rcgr = 0xa98,
+	.mnd_width = 0,
+	.hid_width = 5,
+	.parent_map = videocc_parent_map_1,
+	.freq_tbl = ftbl_videocc_xo_clk_src,
+	.clkr.hw.init = &(const struct clk_init_data) {
+		.name = "videocc_xo_clk_src",
+		.parent_data = videocc_parent_data_1,
+		.num_parents = ARRAY_SIZE(videocc_parent_data_1),
+		.ops = &clk_rcg2_ops,
+	},
+};
+
+static struct clk_branch videocc_iris_ahb_clk = {
+	.halt_reg = 0x8f4,
+	.halt_check = BRANCH_VOTED,
+	.clkr = {
+		.enable_reg = 0x8f4,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "videocc_iris_ahb_clk",
+			.parent_data = &(const struct clk_parent_data) {
+				.hw = &videocc_iris_clk_src.clkr.hw,
+			},
+			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch videocc_mvs0_axi_clk = {
+	.halt_reg = 0x9ec,
+	.halt_check = BRANCH_HALT,
+	.clkr = {
+		.enable_reg = 0x9ec,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "videocc_mvs0_axi_clk",
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch videocc_mvs0_core_clk = {
+	.halt_reg = 0x890,
+	.halt_check = BRANCH_VOTED,
+	.clkr = {
+		.enable_reg = 0x890,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "videocc_mvs0_core_clk",
+			.parent_data = &(const struct clk_parent_data) {
+				.hw = &videocc_iris_clk_src.clkr.hw,
+			},
+			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch videocc_mvs1_axi_clk = {
+	.halt_reg = 0xa0c,
+	.halt_check = BRANCH_HALT,
+	.clkr = {
+		.enable_reg = 0xa0c,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "videocc_mvs1_axi_clk",
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch videocc_mvs1_core_clk = {
+	.halt_reg = 0x8d0,
+	.halt_check = BRANCH_VOTED,
+	.clkr = {
+		.enable_reg = 0x8d0,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "videocc_mvs1_core_clk",
+			.parent_data = &(const struct clk_parent_data) {
+				.hw = &videocc_iris_clk_src.clkr.hw,
+			},
+			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch videocc_mvsc_core_clk = {
+	.halt_reg = 0x850,
+	.halt_check = BRANCH_HALT,
+	.clkr = {
+		.enable_reg = 0x850,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "videocc_mvsc_core_clk",
+			.parent_data = &(const struct clk_parent_data) {
+				.hw = &videocc_iris_clk_src.clkr.hw,
+			},
+			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch videocc_mvsc_ctl_axi_clk = {
+	.halt_reg = 0x9cc,
+	.halt_check = BRANCH_HALT,
+	.clkr = {
+		.enable_reg = 0x9cc,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "videocc_mvsc_ctl_axi_clk",
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch videocc_venus_ahb_clk = {
+	.halt_reg = 0xa6c,
+	.halt_check = BRANCH_HALT,
+	.clkr = {
+		.enable_reg = 0xa6c,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "videocc_venus_ahb_clk",
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct gdsc venus_gdsc = {
+	.gdscr = 0x814,
+	.pd = {
+		.name = "venus_gdsc",
+	},
+	.cxcs = (unsigned int []){ 0x850, 0x9cc },
+	.cxc_count = 2,
+	.pwrsts = PWRSTS_OFF_ON,
+	.flags = POLL_CFG_GDSCR,
+};
+
+static struct gdsc vcodec0_gdsc = {
+	.gdscr = 0x874,
+	.pd = {
+		.name = "vcodec0_gdsc",
+	},
+	.cxcs = (unsigned int []){ 0x890, 0x9ec },
+	.cxc_count = 2,
+	.flags = HW_CTRL | POLL_CFG_GDSCR,
+	.pwrsts = PWRSTS_OFF_ON,
+};
+
+static struct gdsc vcodec1_gdsc = {
+	.gdscr = 0x8b4,
+	.pd = {
+		.name = "vcodec1_gdsc",
+	},
+	.cxcs = (unsigned int []){ 0x8d0, 0xa0c },
+	.cxc_count = 2,
+	.flags = HW_CTRL | POLL_CFG_GDSCR,
+	.pwrsts = PWRSTS_OFF_ON,
+};
+
+static struct clk_regmap *videocc_sm7150_clocks[] = {
+	[VIDEOCC_PLL0] = &videocc_pll0.clkr,
+	[VIDEOCC_IRIS_AHB_CLK] = &videocc_iris_ahb_clk.clkr,
+	[VIDEOCC_IRIS_CLK_SRC] = &videocc_iris_clk_src.clkr,
+	[VIDEOCC_MVS0_AXI_CLK] = &videocc_mvs0_axi_clk.clkr,
+	[VIDEOCC_MVS0_CORE_CLK] = &videocc_mvs0_core_clk.clkr,
+	[VIDEOCC_MVS1_AXI_CLK] = &videocc_mvs1_axi_clk.clkr,
+	[VIDEOCC_MVS1_CORE_CLK] = &videocc_mvs1_core_clk.clkr,
+	[VIDEOCC_MVSC_CORE_CLK] = &videocc_mvsc_core_clk.clkr,
+	[VIDEOCC_MVSC_CTL_AXI_CLK] = &videocc_mvsc_ctl_axi_clk.clkr,
+	[VIDEOCC_VENUS_AHB_CLK] = &videocc_venus_ahb_clk.clkr,
+	[VIDEOCC_XO_CLK_SRC] = &videocc_xo_clk_src.clkr,
+};
+
+static struct gdsc *videocc_sm7150_gdscs[] = {
+	[VENUS_GDSC] = &venus_gdsc,
+	[VCODEC0_GDSC] = &vcodec0_gdsc,
+	[VCODEC1_GDSC] = &vcodec1_gdsc,
+};
+
+static const struct regmap_config videocc_sm7150_regmap_config = {
+	.reg_bits	= 32,
+	.reg_stride	= 4,
+	.val_bits	= 32,
+	.max_register	= 0xb94,
+	.fast_io	= true,
+};
+
+static const struct qcom_cc_desc videocc_sm7150_desc = {
+	.config = &videocc_sm7150_regmap_config,
+	.clks = videocc_sm7150_clocks,
+	.num_clks = ARRAY_SIZE(videocc_sm7150_clocks),
+	.gdscs = videocc_sm7150_gdscs,
+	.num_gdscs = ARRAY_SIZE(videocc_sm7150_gdscs),
+};
+
+static const struct of_device_id videocc_sm7150_match_table[] = {
+	{ .compatible = "qcom,sm7150-videocc" },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, videocc_sm7150_match_table);
+
+static int videocc_sm7150_probe(struct platform_device *pdev)
+{
+	struct regmap *regmap;
+
+	regmap = qcom_cc_map(pdev, &videocc_sm7150_desc);
+	if (IS_ERR(regmap))
+		return PTR_ERR(regmap);
+
+	clk_fabia_pll_configure(&videocc_pll0, regmap, &videocc_pll0_config);
+
+	/* Keep some clocks always-on */
+	qcom_branch_set_clk_en(regmap, 0x984); /* VIDEOCC_XO_CLK */
+
+	return qcom_cc_really_probe(pdev, &videocc_sm7150_desc, regmap);
+}
+
+static struct platform_driver videocc_sm7150_driver = {
+	.probe = videocc_sm7150_probe,
+	.driver = {
+		.name = "videocc-sm7150",
+		.of_match_table = videocc_sm7150_match_table,
+	},
+};
+module_platform_driver(videocc_sm7150_driver);
+
+MODULE_DESCRIPTION("Qualcomm SM7150 Video Clock Controller");
+MODULE_LICENSE("GPL");