drivers/clk/mediatek/clk-mt8195-wpe.c
Source file repositories/reference/linux-study-clean/drivers/clk/mediatek/clk-mt8195-wpe.c
File Facts
- System
- Linux kernel
- Corpus path
drivers/clk/mediatek/clk-mt8195-wpe.c- Extension
.c- Size
- 6003 bytes
- Lines
- 149
- 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.
- 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.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
clk-gate.hclk-mtk.hdt-bindings/clock/mt8195-clk.hlinux/clk-provider.hlinux/platform_device.h
Detected Declarations
- No top-level syscall, struct, function, initcall, or export declaration detected by the generator.
Annotated Snippet
// SPDX-License-Identifier: GPL-2.0-only
//
// Copyright (c) 2021 MediaTek Inc.
// Author: Chun-Jie Chen <chun-jie.chen@mediatek.com>
#include "clk-gate.h"
#include "clk-mtk.h"
#include <dt-bindings/clock/mt8195-clk.h>
#include <linux/clk-provider.h>
#include <linux/platform_device.h>
static const struct mtk_gate_regs wpe_cg_regs = {
.set_ofs = 0x0,
.clr_ofs = 0x0,
.sta_ofs = 0x0,
};
static const struct mtk_gate_regs wpe_vpp0_cg_regs = {
.set_ofs = 0x58,
.clr_ofs = 0x58,
.sta_ofs = 0x58,
};
static const struct mtk_gate_regs wpe_vpp1_cg_regs = {
.set_ofs = 0x5c,
.clr_ofs = 0x5c,
.sta_ofs = 0x5c,
};
#define GATE_WPE(_id, _name, _parent, _shift) \
GATE_MTK(_id, _name, _parent, &wpe_cg_regs, _shift, &mtk_clk_gate_ops_no_setclr_inv)
#define GATE_WPE_VPP0(_id, _name, _parent, _shift) \
GATE_MTK(_id, _name, _parent, &wpe_vpp0_cg_regs, _shift, &mtk_clk_gate_ops_no_setclr_inv)
#define GATE_WPE_VPP1(_id, _name, _parent, _shift) \
GATE_MTK(_id, _name, _parent, &wpe_vpp1_cg_regs, _shift, &mtk_clk_gate_ops_no_setclr_inv)
static const struct mtk_gate wpe_clks[] = {
GATE_WPE(CLK_WPE_VPP0, "wpe_vpp0", "top_wpe_vpp", 16),
GATE_WPE(CLK_WPE_VPP1, "wpe_vpp1", "top_wpe_vpp", 17),
GATE_WPE(CLK_WPE_SMI_LARB7, "wpe_smi_larb7", "top_wpe_vpp", 18),
GATE_WPE(CLK_WPE_SMI_LARB8, "wpe_smi_larb8", "top_wpe_vpp", 19),
GATE_WPE(CLK_WPE_EVENT_TX, "wpe_event_tx", "top_wpe_vpp", 20),
GATE_WPE(CLK_WPE_SMI_LARB7_P, "wpe_smi_larb7_p", "top_wpe_vpp", 24),
GATE_WPE(CLK_WPE_SMI_LARB8_P, "wpe_smi_larb8_p", "top_wpe_vpp", 25),
};
static const struct mtk_gate wpe_vpp0_clks[] = {
/* WPE_VPP0 */
GATE_WPE_VPP0(CLK_WPE_VPP0_VGEN, "wpe_vpp0_vgen", "top_img", 0),
GATE_WPE_VPP0(CLK_WPE_VPP0_EXT, "wpe_vpp0_ext", "top_img", 1),
GATE_WPE_VPP0(CLK_WPE_VPP0_VFC, "wpe_vpp0_vfc", "top_img", 2),
GATE_WPE_VPP0(CLK_WPE_VPP0_CACH0_TOP, "wpe_vpp0_cach0_top", "top_img", 3),
GATE_WPE_VPP0(CLK_WPE_VPP0_CACH0_DMA, "wpe_vpp0_cach0_dma", "top_img", 4),
GATE_WPE_VPP0(CLK_WPE_VPP0_CACH1_TOP, "wpe_vpp0_cach1_top", "top_img", 5),
GATE_WPE_VPP0(CLK_WPE_VPP0_CACH1_DMA, "wpe_vpp0_cach1_dma", "top_img", 6),
GATE_WPE_VPP0(CLK_WPE_VPP0_CACH2_TOP, "wpe_vpp0_cach2_top", "top_img", 7),
GATE_WPE_VPP0(CLK_WPE_VPP0_CACH2_DMA, "wpe_vpp0_cach2_dma", "top_img", 8),
GATE_WPE_VPP0(CLK_WPE_VPP0_CACH3_TOP, "wpe_vpp0_cach3_top", "top_img", 9),
GATE_WPE_VPP0(CLK_WPE_VPP0_CACH3_DMA, "wpe_vpp0_cach3_dma", "top_img", 10),
GATE_WPE_VPP0(CLK_WPE_VPP0_PSP, "wpe_vpp0_psp", "top_img", 11),
GATE_WPE_VPP0(CLK_WPE_VPP0_PSP2, "wpe_vpp0_psp2", "top_img", 12),
GATE_WPE_VPP0(CLK_WPE_VPP0_SYNC, "wpe_vpp0_sync", "top_img", 13),
GATE_WPE_VPP0(CLK_WPE_VPP0_C24, "wpe_vpp0_c24", "top_img", 14),
GATE_WPE_VPP0(CLK_WPE_VPP0_MDP_CROP, "wpe_vpp0_mdp_crop", "top_img", 15),
GATE_WPE_VPP0(CLK_WPE_VPP0_ISP_CROP, "wpe_vpp0_isp_crop", "top_img", 16),
GATE_WPE_VPP0(CLK_WPE_VPP0_TOP, "wpe_vpp0_top", "top_img", 17),
/* WPE_VPP1 */
GATE_WPE_VPP1(CLK_WPE_VPP0_VECI, "wpe_vpp0_veci", "top_img", 0),
GATE_WPE_VPP1(CLK_WPE_VPP0_VEC2I, "wpe_vpp0_vec2i", "top_img", 1),
GATE_WPE_VPP1(CLK_WPE_VPP0_VEC3I, "wpe_vpp0_vec3i", "top_img", 2),
GATE_WPE_VPP1(CLK_WPE_VPP0_WPEO, "wpe_vpp0_wpeo", "top_img", 3),
GATE_WPE_VPP1(CLK_WPE_VPP0_MSKO, "wpe_vpp0_msko", "top_img", 4),
};
static const struct mtk_gate wpe_vpp1_clks[] = {
/* WPE_VPP0 */
GATE_WPE_VPP0(CLK_WPE_VPP1_VGEN, "wpe_vpp1_vgen", "top_img", 0),
GATE_WPE_VPP0(CLK_WPE_VPP1_EXT, "wpe_vpp1_ext", "top_img", 1),
GATE_WPE_VPP0(CLK_WPE_VPP1_VFC, "wpe_vpp1_vfc", "top_img", 2),
GATE_WPE_VPP0(CLK_WPE_VPP1_CACH0_TOP, "wpe_vpp1_cach0_top", "top_img", 3),
GATE_WPE_VPP0(CLK_WPE_VPP1_CACH0_DMA, "wpe_vpp1_cach0_dma", "top_img", 4),
GATE_WPE_VPP0(CLK_WPE_VPP1_CACH1_TOP, "wpe_vpp1_cach1_top", "top_img", 5),
GATE_WPE_VPP0(CLK_WPE_VPP1_CACH1_DMA, "wpe_vpp1_cach1_dma", "top_img", 6),
GATE_WPE_VPP0(CLK_WPE_VPP1_CACH2_TOP, "wpe_vpp1_cach2_top", "top_img", 7),
GATE_WPE_VPP0(CLK_WPE_VPP1_CACH2_DMA, "wpe_vpp1_cach2_dma", "top_img", 8),
GATE_WPE_VPP0(CLK_WPE_VPP1_CACH3_TOP, "wpe_vpp1_cach3_top", "top_img", 9),
GATE_WPE_VPP0(CLK_WPE_VPP1_CACH3_DMA, "wpe_vpp1_cach3_dma", "top_img", 10),
Annotation
- Immediate include surface: `clk-gate.h`, `clk-mtk.h`, `dt-bindings/clock/mt8195-clk.h`, `linux/clk-provider.h`, `linux/platform_device.h`.
- Atlas domain: Driver Families / drivers/clk.
- Implementation status: source implementation candidate.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.