clk: qcom: camcc: Add support for camera clock controller for Kaanapali

Add support for the Camera Clock Controller (CAMCC) on the Kaanapali
platform.

The CAMCC block on Kaanapali includes both the primary camera clock
controller and the Camera BIST clock controller, which provides the
functional MCLK required for camera operations.

Signed-off-by: Jingyi Wang <jingyi.wang@oss.qualcomm.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Taniya Das <taniya.das@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260107-kaanapali-mmcc-v3-v3-9-8e10adc236a8@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

drivers/clk/qcom/Kconfig

@@ -46,6 +46,16 @@ config CLK_GLYMUR_TCSRCC
 	  Support for the TCSR clock controller on GLYMUR devices.
 	  Say Y if you want to use peripheral devices such as USB/PCIe/EDP.
 
+config CLK_KAANAPALI_CAMCC
+	tristate "Kaanapali Camera Clock Controller"
+	depends on ARM64 || COMPILE_TEST
+	select CLK_KAANAPALI_GCC
+	help
+	  Support for the camera clock controller on Qualcomm Technologies, Inc
+	  Kaanapali devices.
+	  Say Y if you want to support camera devices and functionality such as
+	  capturing pictures.
+
 config CLK_KAANAPALI_DISPCC
 	tristate "Kaanapali Display Clock Controller"
 	depends on ARM64 || COMPILE_TEST

drivers/clk/qcom/Makefile

@@ -24,6 +24,7 @@ obj-$(CONFIG_CLK_GFM_LPASS_SM8250) += lpass-gfm-sm8250.o
 obj-$(CONFIG_CLK_GLYMUR_DISPCC) += dispcc-glymur.o
 obj-$(CONFIG_CLK_GLYMUR_GCC) += gcc-glymur.o
 obj-$(CONFIG_CLK_GLYMUR_TCSRCC) += tcsrcc-glymur.o
+obj-$(CONFIG_CLK_KAANAPALI_CAMCC) += cambistmclkcc-kaanapali.o camcc-kaanapali.o
 obj-$(CONFIG_CLK_KAANAPALI_DISPCC) += dispcc-kaanapali.o
 obj-$(CONFIG_CLK_KAANAPALI_GCC) += gcc-kaanapali.o
 obj-$(CONFIG_CLK_KAANAPALI_TCSRCC) += tcsrcc-kaanapali.o

drivers/clk/qcom/cambistmclkcc-kaanapali.c

@@ -0,0 +1,437 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/mod_devicetable.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/regmap.h>
+
+#include <dt-bindings/clock/qcom,kaanapali-cambistmclkcc.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 "clk-regmap-mux.h"
+#include "common.h"
+#include "gdsc.h"
+#include "reset.h"
+
+enum {
+	DT_AHB_CLK,
+	DT_BI_TCXO,
+	DT_BI_TCXO_AO,
+	DT_SLEEP_CLK,
+};
+
+enum {
+	P_BI_TCXO,
+	P_CAM_BIST_MCLK_CC_PLL0_OUT_EVEN,
+	P_CAM_BIST_MCLK_CC_PLL0_OUT_MAIN,
+};
+
+static const struct pll_vco rivian_eko_t_vco[] = {
+	{ 883200000, 1171200000, 0 },
+};
+
+/* 960.0 MHz Configuration */
+static const struct alpha_pll_config cam_bist_mclk_cc_pll0_config = {
+	.l = 0x32,
+	.cal_l = 0x32,
+	.alpha = 0x0,
+	.config_ctl_val = 0x12000000,
+	.config_ctl_hi_val = 0x00890263,
+	.config_ctl_hi1_val = 0x1af04237,
+	.config_ctl_hi2_val = 0x00000000,
+};
+
+static struct clk_alpha_pll cam_bist_mclk_cc_pll0 = {
+	.offset = 0x0,
+	.config = &cam_bist_mclk_cc_pll0_config,
+	.vco_table = rivian_eko_t_vco,
+	.num_vco = ARRAY_SIZE(rivian_eko_t_vco),
+	.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_RIVIAN_EKO_T],
+	.clkr = {
+		.hw.init = &(const struct clk_init_data) {
+			.name = "cam_bist_mclk_cc_pll0",
+			.parent_data = &(const struct clk_parent_data) {
+				.index = DT_BI_TCXO,
+			},
+			.num_parents = 1,
+			.ops = &clk_alpha_pll_rivian_eko_t_ops,
+		},
+	},
+};
+
+static const struct parent_map cam_bist_mclk_cc_parent_map_0[] = {
+	{ P_BI_TCXO, 0 },
+	{ P_CAM_BIST_MCLK_CC_PLL0_OUT_EVEN, 3 },
+	{ P_CAM_BIST_MCLK_CC_PLL0_OUT_MAIN, 5 },
+};
+
+static const struct clk_parent_data cam_bist_mclk_cc_parent_data_0[] = {
+	{ .index = DT_BI_TCXO },
+	{ .hw = &cam_bist_mclk_cc_pll0.clkr.hw },
+	{ .hw = &cam_bist_mclk_cc_pll0.clkr.hw },
+};
+
+static const struct freq_tbl ftbl_cam_bist_mclk_cc_mclk0_clk_src[] = {
+	F(19200000, P_BI_TCXO, 1, 0, 0),
+	F(24000000, P_CAM_BIST_MCLK_CC_PLL0_OUT_EVEN, 10, 1, 4),
+	F(68571429, P_CAM_BIST_MCLK_CC_PLL0_OUT_MAIN, 14, 0, 0),
+	{ }
+};
+
+static struct clk_rcg2 cam_bist_mclk_cc_mclk0_clk_src = {
+	.cmd_rcgr = 0x4000,
+	.mnd_width = 8,
+	.hid_width = 5,
+	.parent_map = cam_bist_mclk_cc_parent_map_0,
+	.hw_clk_ctrl = true,
+	.freq_tbl = ftbl_cam_bist_mclk_cc_mclk0_clk_src,
+	.clkr.hw.init = &(const struct clk_init_data) {
+		.name = "cam_bist_mclk_cc_mclk0_clk_src",
+		.parent_data = cam_bist_mclk_cc_parent_data_0,
+		.num_parents = ARRAY_SIZE(cam_bist_mclk_cc_parent_data_0),
+		.flags = CLK_SET_RATE_PARENT,
+		.ops = &clk_rcg2_shared_ops,
+	},
+};
+
+static struct clk_rcg2 cam_bist_mclk_cc_mclk1_clk_src = {
+	.cmd_rcgr = 0x401c,
+	.mnd_width = 8,
+	.hid_width = 5,
+	.parent_map = cam_bist_mclk_cc_parent_map_0,
+	.hw_clk_ctrl = true,
+	.freq_tbl = ftbl_cam_bist_mclk_cc_mclk0_clk_src,
+	.clkr.hw.init = &(const struct clk_init_data) {
+		.name = "cam_bist_mclk_cc_mclk1_clk_src",
+		.parent_data = cam_bist_mclk_cc_parent_data_0,
+		.num_parents = ARRAY_SIZE(cam_bist_mclk_cc_parent_data_0),
+		.flags = CLK_SET_RATE_PARENT,
+		.ops = &clk_rcg2_shared_ops,
+	},
+};
+
+static struct clk_rcg2 cam_bist_mclk_cc_mclk2_clk_src = {
+	.cmd_rcgr = 0x4038,
+	.mnd_width = 8,
+	.hid_width = 5,
+	.parent_map = cam_bist_mclk_cc_parent_map_0,
+	.hw_clk_ctrl = true,
+	.freq_tbl = ftbl_cam_bist_mclk_cc_mclk0_clk_src,
+	.clkr.hw.init = &(const struct clk_init_data) {
+		.name = "cam_bist_mclk_cc_mclk2_clk_src",
+		.parent_data = cam_bist_mclk_cc_parent_data_0,
+		.num_parents = ARRAY_SIZE(cam_bist_mclk_cc_parent_data_0),
+		.flags = CLK_SET_RATE_PARENT,
+		.ops = &clk_rcg2_shared_ops,
+	},
+};
+
+static struct clk_rcg2 cam_bist_mclk_cc_mclk3_clk_src = {
+	.cmd_rcgr = 0x4054,
+	.mnd_width = 8,
+	.hid_width = 5,
+	.parent_map = cam_bist_mclk_cc_parent_map_0,
+	.hw_clk_ctrl = true,
+	.freq_tbl = ftbl_cam_bist_mclk_cc_mclk0_clk_src,
+	.clkr.hw.init = &(const struct clk_init_data) {
+		.name = "cam_bist_mclk_cc_mclk3_clk_src",
+		.parent_data = cam_bist_mclk_cc_parent_data_0,
+		.num_parents = ARRAY_SIZE(cam_bist_mclk_cc_parent_data_0),
+		.flags = CLK_SET_RATE_PARENT,
+		.ops = &clk_rcg2_shared_ops,
+	},
+};
+
+static struct clk_rcg2 cam_bist_mclk_cc_mclk4_clk_src = {
+	.cmd_rcgr = 0x4070,
+	.mnd_width = 8,
+	.hid_width = 5,
+	.parent_map = cam_bist_mclk_cc_parent_map_0,
+	.hw_clk_ctrl = true,
+	.freq_tbl = ftbl_cam_bist_mclk_cc_mclk0_clk_src,
+	.clkr.hw.init = &(const struct clk_init_data) {
+		.name = "cam_bist_mclk_cc_mclk4_clk_src",
+		.parent_data = cam_bist_mclk_cc_parent_data_0,
+		.num_parents = ARRAY_SIZE(cam_bist_mclk_cc_parent_data_0),
+		.flags = CLK_SET_RATE_PARENT,
+		.ops = &clk_rcg2_shared_ops,
+	},
+};
+
+static struct clk_rcg2 cam_bist_mclk_cc_mclk5_clk_src = {
+	.cmd_rcgr = 0x408c,
+	.mnd_width = 8,
+	.hid_width = 5,
+	.parent_map = cam_bist_mclk_cc_parent_map_0,
+	.hw_clk_ctrl = true,
+	.freq_tbl = ftbl_cam_bist_mclk_cc_mclk0_clk_src,
+	.clkr.hw.init = &(const struct clk_init_data) {
+		.name = "cam_bist_mclk_cc_mclk5_clk_src",
+		.parent_data = cam_bist_mclk_cc_parent_data_0,
+		.num_parents = ARRAY_SIZE(cam_bist_mclk_cc_parent_data_0),
+		.flags = CLK_SET_RATE_PARENT,
+		.ops = &clk_rcg2_shared_ops,
+	},
+};
+
+static struct clk_rcg2 cam_bist_mclk_cc_mclk6_clk_src = {
+	.cmd_rcgr = 0x40a8,
+	.mnd_width = 8,
+	.hid_width = 5,
+	.parent_map = cam_bist_mclk_cc_parent_map_0,
+	.hw_clk_ctrl = true,
+	.freq_tbl = ftbl_cam_bist_mclk_cc_mclk0_clk_src,
+	.clkr.hw.init = &(const struct clk_init_data) {
+		.name = "cam_bist_mclk_cc_mclk6_clk_src",
+		.parent_data = cam_bist_mclk_cc_parent_data_0,
+		.num_parents = ARRAY_SIZE(cam_bist_mclk_cc_parent_data_0),
+		.flags = CLK_SET_RATE_PARENT,
+		.ops = &clk_rcg2_shared_ops,
+	},
+};
+
+static struct clk_rcg2 cam_bist_mclk_cc_mclk7_clk_src = {
+	.cmd_rcgr = 0x40c4,
+	.mnd_width = 8,
+	.hid_width = 5,
+	.parent_map = cam_bist_mclk_cc_parent_map_0,
+	.hw_clk_ctrl = true,
+	.freq_tbl = ftbl_cam_bist_mclk_cc_mclk0_clk_src,
+	.clkr.hw.init = &(const struct clk_init_data) {
+		.name = "cam_bist_mclk_cc_mclk7_clk_src",
+		.parent_data = cam_bist_mclk_cc_parent_data_0,
+		.num_parents = ARRAY_SIZE(cam_bist_mclk_cc_parent_data_0),
+		.flags = CLK_SET_RATE_PARENT,
+		.ops = &clk_rcg2_shared_ops,
+	},
+};
+
+static struct clk_branch cam_bist_mclk_cc_mclk0_clk = {
+	.halt_reg = 0x4018,
+	.halt_check = BRANCH_HALT,
+	.clkr = {
+		.enable_reg = 0x4018,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "cam_bist_mclk_cc_mclk0_clk",
+			.parent_hws = (const struct clk_hw*[]) {
+				&cam_bist_mclk_cc_mclk0_clk_src.clkr.hw,
+			},
+			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch cam_bist_mclk_cc_mclk1_clk = {
+	.halt_reg = 0x4034,
+	.halt_check = BRANCH_HALT,
+	.clkr = {
+		.enable_reg = 0x4034,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "cam_bist_mclk_cc_mclk1_clk",
+			.parent_hws = (const struct clk_hw*[]) {
+				&cam_bist_mclk_cc_mclk1_clk_src.clkr.hw,
+			},
+			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch cam_bist_mclk_cc_mclk2_clk = {
+	.halt_reg = 0x4050,
+	.halt_check = BRANCH_HALT,
+	.clkr = {
+		.enable_reg = 0x4050,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "cam_bist_mclk_cc_mclk2_clk",
+			.parent_hws = (const struct clk_hw*[]) {
+				&cam_bist_mclk_cc_mclk2_clk_src.clkr.hw,
+			},
+			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch cam_bist_mclk_cc_mclk3_clk = {
+	.halt_reg = 0x406c,
+	.halt_check = BRANCH_HALT,
+	.clkr = {
+		.enable_reg = 0x406c,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "cam_bist_mclk_cc_mclk3_clk",
+			.parent_hws = (const struct clk_hw*[]) {
+				&cam_bist_mclk_cc_mclk3_clk_src.clkr.hw,
+			},
+			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch cam_bist_mclk_cc_mclk4_clk = {
+	.halt_reg = 0x4088,
+	.halt_check = BRANCH_HALT,
+	.clkr = {
+		.enable_reg = 0x4088,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "cam_bist_mclk_cc_mclk4_clk",
+			.parent_hws = (const struct clk_hw*[]) {
+				&cam_bist_mclk_cc_mclk4_clk_src.clkr.hw,
+			},
+			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch cam_bist_mclk_cc_mclk5_clk = {
+	.halt_reg = 0x40a4,
+	.halt_check = BRANCH_HALT,
+	.clkr = {
+		.enable_reg = 0x40a4,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "cam_bist_mclk_cc_mclk5_clk",
+			.parent_hws = (const struct clk_hw*[]) {
+				&cam_bist_mclk_cc_mclk5_clk_src.clkr.hw,
+			},
+			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch cam_bist_mclk_cc_mclk6_clk = {
+	.halt_reg = 0x40c0,
+	.halt_check = BRANCH_HALT,
+	.clkr = {
+		.enable_reg = 0x40c0,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "cam_bist_mclk_cc_mclk6_clk",
+			.parent_hws = (const struct clk_hw*[]) {
+				&cam_bist_mclk_cc_mclk6_clk_src.clkr.hw,
+			},
+			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch cam_bist_mclk_cc_mclk7_clk = {
+	.halt_reg = 0x40dc,
+	.halt_check = BRANCH_HALT,
+	.clkr = {
+		.enable_reg = 0x40dc,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "cam_bist_mclk_cc_mclk7_clk",
+			.parent_hws = (const struct clk_hw*[]) {
+				&cam_bist_mclk_cc_mclk7_clk_src.clkr.hw,
+			},
+			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_regmap *cam_bist_mclk_cc_kaanapali_clocks[] = {
+	[CAM_BIST_MCLK_CC_MCLK0_CLK] = &cam_bist_mclk_cc_mclk0_clk.clkr,
+	[CAM_BIST_MCLK_CC_MCLK0_CLK_SRC] = &cam_bist_mclk_cc_mclk0_clk_src.clkr,
+	[CAM_BIST_MCLK_CC_MCLK1_CLK] = &cam_bist_mclk_cc_mclk1_clk.clkr,
+	[CAM_BIST_MCLK_CC_MCLK1_CLK_SRC] = &cam_bist_mclk_cc_mclk1_clk_src.clkr,
+	[CAM_BIST_MCLK_CC_MCLK2_CLK] = &cam_bist_mclk_cc_mclk2_clk.clkr,
+	[CAM_BIST_MCLK_CC_MCLK2_CLK_SRC] = &cam_bist_mclk_cc_mclk2_clk_src.clkr,
+	[CAM_BIST_MCLK_CC_MCLK3_CLK] = &cam_bist_mclk_cc_mclk3_clk.clkr,
+	[CAM_BIST_MCLK_CC_MCLK3_CLK_SRC] = &cam_bist_mclk_cc_mclk3_clk_src.clkr,
+	[CAM_BIST_MCLK_CC_MCLK4_CLK] = &cam_bist_mclk_cc_mclk4_clk.clkr,
+	[CAM_BIST_MCLK_CC_MCLK4_CLK_SRC] = &cam_bist_mclk_cc_mclk4_clk_src.clkr,
+	[CAM_BIST_MCLK_CC_MCLK5_CLK] = &cam_bist_mclk_cc_mclk5_clk.clkr,
+	[CAM_BIST_MCLK_CC_MCLK5_CLK_SRC] = &cam_bist_mclk_cc_mclk5_clk_src.clkr,
+	[CAM_BIST_MCLK_CC_MCLK6_CLK] = &cam_bist_mclk_cc_mclk6_clk.clkr,
+	[CAM_BIST_MCLK_CC_MCLK6_CLK_SRC] = &cam_bist_mclk_cc_mclk6_clk_src.clkr,
+	[CAM_BIST_MCLK_CC_MCLK7_CLK] = &cam_bist_mclk_cc_mclk7_clk.clkr,
+	[CAM_BIST_MCLK_CC_MCLK7_CLK_SRC] = &cam_bist_mclk_cc_mclk7_clk_src.clkr,
+	[CAM_BIST_MCLK_CC_PLL0] = &cam_bist_mclk_cc_pll0.clkr,
+};
+
+static struct clk_alpha_pll *cam_bist_mclk_cc_kaanapali_plls[] = {
+	&cam_bist_mclk_cc_pll0,
+};
+
+static u32 cam_bist_mclk_cc_kaanapali_critical_cbcrs[] = {
+	0x40e0, /* CAM_BIST_MCLK_CC_SLEEP_CLK */
+};
+
+static const struct regmap_config cam_bist_mclk_cc_kaanapali_regmap_config = {
+	.reg_bits = 32,
+	.reg_stride = 4,
+	.val_bits = 32,
+	.max_register = 0x5010,
+	.fast_io = true,
+};
+
+static struct qcom_cc_driver_data cam_bist_mclk_cc_kaanapali_driver_data = {
+	.alpha_plls = cam_bist_mclk_cc_kaanapali_plls,
+	.num_alpha_plls = ARRAY_SIZE(cam_bist_mclk_cc_kaanapali_plls),
+	.clk_cbcrs = cam_bist_mclk_cc_kaanapali_critical_cbcrs,
+	.num_clk_cbcrs = ARRAY_SIZE(cam_bist_mclk_cc_kaanapali_critical_cbcrs),
+};
+
+static const struct qcom_cc_desc cam_bist_mclk_cc_kaanapali_desc = {
+	.config = &cam_bist_mclk_cc_kaanapali_regmap_config,
+	.clks = cam_bist_mclk_cc_kaanapali_clocks,
+	.num_clks = ARRAY_SIZE(cam_bist_mclk_cc_kaanapali_clocks),
+	.use_rpm = true,
+	.driver_data = &cam_bist_mclk_cc_kaanapali_driver_data,
+};
+
+static const struct of_device_id cam_bist_mclk_cc_kaanapali_match_table[] = {
+	{ .compatible = "qcom,kaanapali-cambistmclkcc" },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, cam_bist_mclk_cc_kaanapali_match_table);
+
+static int cam_bist_mclk_cc_kaanapali_probe(struct platform_device *pdev)
+{
+	return qcom_cc_probe(pdev, &cam_bist_mclk_cc_kaanapali_desc);
+}
+
+static struct platform_driver cam_bist_mclk_cc_kaanapali_driver = {
+	.probe = cam_bist_mclk_cc_kaanapali_probe,
+	.driver = {
+		.name = "cambistmclkcc-kaanapali",
+		.of_match_table = cam_bist_mclk_cc_kaanapali_match_table,
+	},
+};
+
+module_platform_driver(cam_bist_mclk_cc_kaanapali_driver);
+
+MODULE_DESCRIPTION("QTI CAMBISTMCLKCC Kaanapali Driver");
+MODULE_LICENSE("GPL");