drivers/clk/mediatek/clk-mt2701-mm.c

Source file repositories/reference/linux-study-clean/drivers/clk/mediatek/clk-mt2701-mm.c

File Facts

System
Linux kernel
Corpus path
drivers/clk/mediatek/clk-mt2701-mm.c
Extension
.c
Size
3564 bytes
Lines
94
Domain
Driver Families
Bucket
drivers/clk
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (c) 2014 MediaTek Inc.
 * Author: Shunli Wang <shunli.wang@mediatek.com>
 */

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

#include "clk-mtk.h"
#include "clk-gate.h"

#include <dt-bindings/clock/mt2701-clk.h>

static const struct mtk_gate_regs disp0_cg_regs = {
	.set_ofs = 0x0104,
	.clr_ofs = 0x0108,
	.sta_ofs = 0x0100,
};

static const struct mtk_gate_regs disp1_cg_regs = {
	.set_ofs = 0x0114,
	.clr_ofs = 0x0118,
	.sta_ofs = 0x0110,
};

#define GATE_DISP0(_id, _name, _parent, _shift)	\
	GATE_MTK(_id, _name, _parent, &disp0_cg_regs, _shift, &mtk_clk_gate_ops_setclr)

#define GATE_DISP1(_id, _name, _parent, _shift)	\
	GATE_MTK(_id, _name, _parent, &disp1_cg_regs, _shift, &mtk_clk_gate_ops_setclr)

static const struct mtk_gate mm_clks[] = {
	GATE_DUMMY(CLK_DUMMY, "mm_dummy"),
	GATE_DISP0(CLK_MM_SMI_COMMON, "mm_smi_comm", "mm_sel", 0),
	GATE_DISP0(CLK_MM_SMI_LARB0, "mm_smi_larb0", "mm_sel", 1),
	GATE_DISP0(CLK_MM_CMDQ, "mm_cmdq", "mm_sel", 2),
	GATE_DISP0(CLK_MM_MUTEX, "mm_mutex", "mm_sel", 3),
	GATE_DISP0(CLK_MM_DISP_COLOR, "mm_disp_color", "mm_sel", 4),
	GATE_DISP0(CLK_MM_DISP_BLS, "mm_disp_bls", "mm_sel", 5),
	GATE_DISP0(CLK_MM_DISP_WDMA, "mm_disp_wdma", "mm_sel", 6),
	GATE_DISP0(CLK_MM_DISP_RDMA, "mm_disp_rdma", "mm_sel", 7),
	GATE_DISP0(CLK_MM_DISP_OVL, "mm_disp_ovl", "mm_sel", 8),
	GATE_DISP0(CLK_MM_MDP_TDSHP, "mm_mdp_tdshp", "mm_sel", 9),
	GATE_DISP0(CLK_MM_MDP_WROT, "mm_mdp_wrot", "mm_sel", 10),
	GATE_DISP0(CLK_MM_MDP_WDMA, "mm_mdp_wdma", "mm_sel", 11),
	GATE_DISP0(CLK_MM_MDP_RSZ1, "mm_mdp_rsz1", "mm_sel", 12),
	GATE_DISP0(CLK_MM_MDP_RSZ0, "mm_mdp_rsz0", "mm_sel", 13),
	GATE_DISP0(CLK_MM_MDP_RDMA, "mm_mdp_rdma", "mm_sel", 14),
	GATE_DISP0(CLK_MM_MDP_BLS_26M, "mm_mdp_bls_26m", "pwm_sel", 15),
	GATE_DISP0(CLK_MM_CAM_MDP, "mm_cam_mdp", "mm_sel", 16),
	GATE_DISP0(CLK_MM_FAKE_ENG, "mm_fake_eng", "mm_sel", 17),
	GATE_DISP0(CLK_MM_MUTEX_32K, "mm_mutex_32k", "rtc_sel", 18),
	GATE_DISP0(CLK_MM_DISP_RDMA1, "mm_disp_rdma1", "mm_sel", 19),
	GATE_DISP0(CLK_MM_DISP_UFOE, "mm_disp_ufoe", "mm_sel", 20),
	GATE_DISP1(CLK_MM_DSI_ENGINE, "mm_dsi_eng", "mm_sel", 0),
	GATE_DISP1(CLK_MM_DSI_DIG, "mm_dsi_dig", "dsi0_lntc_dsi", 1),
	GATE_DISP1(CLK_MM_DPI_DIGL, "mm_dpi_digl", "dpi0_sel", 2),
	GATE_DISP1(CLK_MM_DPI_ENGINE, "mm_dpi_eng", "mm_sel", 3),
	GATE_DISP1(CLK_MM_DPI1_DIGL, "mm_dpi1_digl", "dpi1_sel", 4),
	GATE_DISP1(CLK_MM_DPI1_ENGINE, "mm_dpi1_eng", "mm_sel", 5),
	GATE_DISP1(CLK_MM_TVE_OUTPUT, "mm_tve_output", "tve_sel", 6),
	GATE_DISP1(CLK_MM_TVE_INPUT, "mm_tve_input", "dpi0_sel", 7),
	GATE_DISP1(CLK_MM_HDMI_PIXEL, "mm_hdmi_pixel", "dpi1_sel", 8),
	GATE_DISP1(CLK_MM_HDMI_PLL, "mm_hdmi_pll", "hdmi_sel", 9),
	GATE_DISP1(CLK_MM_HDMI_AUDIO, "mm_hdmi_audio", "apll_sel", 10),
	GATE_DISP1(CLK_MM_HDMI_SPDIF, "mm_hdmi_spdif", "apll_sel", 11),
	GATE_DISP1(CLK_MM_TVE_FMM, "mm_tve_fmm", "mm_sel", 14),
};

static const struct mtk_clk_desc mm_desc = {
	.clks = mm_clks,
	.num_clks = ARRAY_SIZE(mm_clks),
};

static const struct platform_device_id clk_mt2701_mm_id_table[] = {
	{ .name = "clk-mt2701-mm", .driver_data = (kernel_ulong_t)&mm_desc },
	{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(platform, clk_mt2701_mm_id_table);

static struct platform_driver clk_mt2701_mm_drv = {
	.probe = mtk_clk_pdev_probe,
	.remove = mtk_clk_pdev_remove,
	.driver = {
		.name = "clk-mt2701-mm",
	},
	.id_table = clk_mt2701_mm_id_table,
};
module_platform_driver(clk_mt2701_mm_drv);

Annotation

Implementation Notes