linux/drivers/clk/mediatek/clk-mt8188-cam.c
Friday Yang 0ca0dc892c clk: mediatek: Add SMI LARBs reset for MT8188
SMI LARBs require reset functions when MTCMOS powers on or off.
Add reset platform data for SMI LARBs in the image, camera and IPE
subsystems.

Signed-off-by: Friday Yang <friday.yang@mediatek.com>
Link: https://lore.kernel.org/r/20250221075058.14180-3-friday.yang@mediatek.com
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2025-02-27 14:17:01 -08:00

138 lines
5 KiB
C

// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2022 MediaTek Inc.
* Author: Garmin Chang <garmin.chang@mediatek.com>
*/
#include <dt-bindings/clock/mediatek,mt8188-clk.h>
#include <linux/clk-provider.h>
#include <linux/platform_device.h>
#include "clk-gate.h"
#include "clk-mtk.h"
static const struct mtk_gate_regs cam_cg_regs = {
.set_ofs = 0x4,
.clr_ofs = 0x8,
.sta_ofs = 0x0,
};
#define GATE_CAM(_id, _name, _parent, _shift) \
GATE_MTK(_id, _name, _parent, &cam_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
#define CAM_SYS_SMI_LARB_RST_OFF (0xA0)
static const struct mtk_gate cam_main_clks[] = {
GATE_CAM(CLK_CAM_MAIN_LARB13, "cam_main_larb13", "top_cam", 0),
GATE_CAM(CLK_CAM_MAIN_LARB14, "cam_main_larb14", "top_cam", 1),
GATE_CAM(CLK_CAM_MAIN_CAM, "cam_main_cam", "top_cam", 2),
GATE_CAM(CLK_CAM_MAIN_CAM_SUBA, "cam_main_cam_suba", "top_cam", 3),
GATE_CAM(CLK_CAM_MAIN_CAM_SUBB, "cam_main_cam_subb", "top_cam", 4),
GATE_CAM(CLK_CAM_MAIN_CAMTG, "cam_main_camtg", "top_cam", 7),
GATE_CAM(CLK_CAM_MAIN_SENINF, "cam_main_seninf", "top_cam", 8),
GATE_CAM(CLK_CAM_MAIN_GCAMSVA, "cam_main_gcamsva", "top_cam", 9),
GATE_CAM(CLK_CAM_MAIN_GCAMSVB, "cam_main_gcamsvb", "top_cam", 10),
GATE_CAM(CLK_CAM_MAIN_GCAMSVC, "cam_main_gcamsvc", "top_cam", 11),
GATE_CAM(CLK_CAM_MAIN_GCAMSVD, "cam_main_gcamsvd", "top_cam", 12),
GATE_CAM(CLK_CAM_MAIN_GCAMSVE, "cam_main_gcamsve", "top_cam", 13),
GATE_CAM(CLK_CAM_MAIN_GCAMSVF, "cam_main_gcamsvf", "top_cam", 14),
GATE_CAM(CLK_CAM_MAIN_GCAMSVG, "cam_main_gcamsvg", "top_cam", 15),
GATE_CAM(CLK_CAM_MAIN_GCAMSVH, "cam_main_gcamsvh", "top_cam", 16),
GATE_CAM(CLK_CAM_MAIN_GCAMSVI, "cam_main_gcamsvi", "top_cam", 17),
GATE_CAM(CLK_CAM_MAIN_GCAMSVJ, "cam_main_gcamsvj", "top_cam", 18),
GATE_CAM(CLK_CAM_MAIN_CAMSV_TOP, "cam_main_camsv", "top_cam", 19),
GATE_CAM(CLK_CAM_MAIN_CAMSV_CQ_A, "cam_main_camsv_cq_a", "top_cam", 20),
GATE_CAM(CLK_CAM_MAIN_CAMSV_CQ_B, "cam_main_camsv_cq_b", "top_cam", 21),
GATE_CAM(CLK_CAM_MAIN_CAMSV_CQ_C, "cam_main_camsv_cq_c", "top_cam", 22),
GATE_CAM(CLK_CAM_MAIN_FAKE_ENG, "cam_main_fake_eng", "top_cam", 28),
GATE_CAM(CLK_CAM_MAIN_CAM2MM0_GALS, "cam_main_cam2mm0_gals", "top_cam", 29),
GATE_CAM(CLK_CAM_MAIN_CAM2MM1_GALS, "cam_main_cam2mm1_gals", "top_cam", 30),
GATE_CAM(CLK_CAM_MAIN_CAM2SYS_GALS, "cam_main_cam2sys_gals", "top_cam", 31),
};
static const struct mtk_gate cam_rawa_clks[] = {
GATE_CAM(CLK_CAM_RAWA_LARBX, "cam_rawa_larbx", "top_cam", 0),
GATE_CAM(CLK_CAM_RAWA_CAM, "cam_rawa_cam", "top_cam", 1),
GATE_CAM(CLK_CAM_RAWA_CAMTG, "cam_rawa_camtg", "top_cam", 2),
};
static const struct mtk_gate cam_rawb_clks[] = {
GATE_CAM(CLK_CAM_RAWB_LARBX, "cam_rawb_larbx", "top_cam", 0),
GATE_CAM(CLK_CAM_RAWB_CAM, "cam_rawb_cam", "top_cam", 1),
GATE_CAM(CLK_CAM_RAWB_CAMTG, "cam_rawb_camtg", "top_cam", 2),
};
static const struct mtk_gate cam_yuva_clks[] = {
GATE_CAM(CLK_CAM_YUVA_LARBX, "cam_yuva_larbx", "top_cam", 0),
GATE_CAM(CLK_CAM_YUVA_CAM, "cam_yuva_cam", "top_cam", 1),
GATE_CAM(CLK_CAM_YUVA_CAMTG, "cam_yuva_camtg", "top_cam", 2),
};
static const struct mtk_gate cam_yuvb_clks[] = {
GATE_CAM(CLK_CAM_YUVB_LARBX, "cam_yuvb_larbx", "top_cam", 0),
GATE_CAM(CLK_CAM_YUVB_CAM, "cam_yuvb_cam", "top_cam", 1),
GATE_CAM(CLK_CAM_YUVB_CAMTG, "cam_yuvb_camtg", "top_cam", 2),
};
/* Reset for SMI larb 16a/16b/17a/17b */
static u16 cam_sys_rst_ofs[] = {
CAM_SYS_SMI_LARB_RST_OFF,
};
static const struct mtk_clk_rst_desc cam_sys_rst_desc = {
.version = MTK_RST_SIMPLE,
.rst_bank_ofs = cam_sys_rst_ofs,
.rst_bank_nr = ARRAY_SIZE(cam_sys_rst_ofs),
};
static const struct mtk_clk_desc cam_main_desc = {
.clks = cam_main_clks,
.num_clks = ARRAY_SIZE(cam_main_clks),
};
static const struct mtk_clk_desc cam_rawa_desc = {
.clks = cam_rawa_clks,
.num_clks = ARRAY_SIZE(cam_rawa_clks),
.rst_desc = &cam_sys_rst_desc,
};
static const struct mtk_clk_desc cam_rawb_desc = {
.clks = cam_rawb_clks,
.num_clks = ARRAY_SIZE(cam_rawb_clks),
.rst_desc = &cam_sys_rst_desc,
};
static const struct mtk_clk_desc cam_yuva_desc = {
.clks = cam_yuva_clks,
.num_clks = ARRAY_SIZE(cam_yuva_clks),
.rst_desc = &cam_sys_rst_desc,
};
static const struct mtk_clk_desc cam_yuvb_desc = {
.clks = cam_yuvb_clks,
.num_clks = ARRAY_SIZE(cam_yuvb_clks),
.rst_desc = &cam_sys_rst_desc,
};
static const struct of_device_id of_match_clk_mt8188_cam[] = {
{ .compatible = "mediatek,mt8188-camsys", .data = &cam_main_desc },
{ .compatible = "mediatek,mt8188-camsys-rawa", .data = &cam_rawa_desc },
{ .compatible = "mediatek,mt8188-camsys-rawb", .data = &cam_rawb_desc },
{ .compatible = "mediatek,mt8188-camsys-yuva", .data = &cam_yuva_desc },
{ .compatible = "mediatek,mt8188-camsys-yuvb", .data = &cam_yuvb_desc },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, of_match_clk_mt8188_cam);
static struct platform_driver clk_mt8188_cam_drv = {
.probe = mtk_clk_simple_probe,
.remove = mtk_clk_simple_remove,
.driver = {
.name = "clk-mt8188-cam",
.of_match_table = of_match_clk_mt8188_cam,
},
};
module_platform_driver(clk_mt8188_cam_drv);
MODULE_DESCRIPTION("MediaTek MT8188 Camera clocks driver");
MODULE_LICENSE("GPL");