drivers/clk/mediatek/clk-mt8135.c

Source file repositories/reference/linux-study-clean/drivers/clk/mediatek/clk-mt8135.c

File Facts

System
Linux kernel
Corpus path
drivers/clk/mediatek/clk-mt8135.c
Extension
.c
Size
17132 bytes
Lines
567
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: James Liao <jamesjj.liao@mediatek.com>
 */

#include <linux/clk.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/mfd/syscon.h>
#include <dt-bindings/clock/mt8135-clk.h>

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

static DEFINE_SPINLOCK(mt8135_clk_lock);

static const struct mtk_fixed_factor top_divs[] = {
	FACTOR(CLK_DUMMY, "top_divs_dummy", "clk_null", 1, 1),
	FACTOR(CLK_TOP_DSI0_LNTC_DSICLK, "dsi0_lntc_dsiclk", "clk_null", 1, 1),
	FACTOR(CLK_TOP_HDMITX_CLKDIG_CTS, "hdmitx_clkdig_cts", "clk_null", 1, 1),
	FACTOR(CLK_TOP_CLKPH_MCK, "clkph_mck", "clk_null", 1, 1),
	FACTOR(CLK_TOP_CPUM_TCK_IN, "cpum_tck_in", "clk_null", 1, 1),

	FACTOR(CLK_TOP_MAINPLL_806M, "mainpll_806m", "mainpll", 1, 2),
	FACTOR(CLK_TOP_MAINPLL_537P3M, "mainpll_537p3m", "mainpll", 1, 3),
	FACTOR(CLK_TOP_MAINPLL_322P4M, "mainpll_322p4m", "mainpll", 1, 5),
	FACTOR(CLK_TOP_MAINPLL_230P3M, "mainpll_230p3m", "mainpll", 1, 7),

	FACTOR(CLK_TOP_UNIVPLL_624M, "univpll_624m", "univpll", 1, 2),
	FACTOR(CLK_TOP_UNIVPLL_416M, "univpll_416m", "univpll", 1, 3),
	FACTOR(CLK_TOP_UNIVPLL_249P6M, "univpll_249p6m", "univpll", 1, 5),
	FACTOR(CLK_TOP_UNIVPLL_178P3M, "univpll_178p3m", "univpll", 1, 7),
	FACTOR(CLK_TOP_UNIVPLL_48M, "univpll_48m", "univpll", 1, 26),

	FACTOR(CLK_TOP_MMPLL_D2, "mmpll_d2", "mmpll", 1, 2),
	FACTOR(CLK_TOP_MMPLL_D3, "mmpll_d3", "mmpll", 1, 3),
	FACTOR(CLK_TOP_MMPLL_D5, "mmpll_d5", "mmpll", 1, 5),
	FACTOR(CLK_TOP_MMPLL_D7, "mmpll_d7", "mmpll", 1, 7),
	FACTOR(CLK_TOP_MMPLL_D4, "mmpll_d4", "mmpll_d2", 1, 2),
	FACTOR(CLK_TOP_MMPLL_D6, "mmpll_d6", "mmpll_d3", 1, 2),

	FACTOR(CLK_TOP_SYSPLL_D2, "syspll_d2", "mainpll_806m", 1, 1),
	FACTOR(CLK_TOP_SYSPLL_D4, "syspll_d4", "mainpll_806m", 1, 2),
	FACTOR(CLK_TOP_SYSPLL_D6, "syspll_d6", "mainpll_806m", 1, 3),
	FACTOR(CLK_TOP_SYSPLL_D8, "syspll_d8", "mainpll_806m", 1, 4),
	FACTOR(CLK_TOP_SYSPLL_D10, "syspll_d10", "mainpll_806m", 1, 5),
	FACTOR(CLK_TOP_SYSPLL_D12, "syspll_d12", "mainpll_806m", 1, 6),
	FACTOR(CLK_TOP_SYSPLL_D16, "syspll_d16", "mainpll_806m", 1, 8),
	FACTOR(CLK_TOP_SYSPLL_D24, "syspll_d24", "mainpll_806m", 1, 12),

	FACTOR(CLK_TOP_SYSPLL_D3, "syspll_d3", "mainpll_537p3m", 1, 1),

	FACTOR(CLK_TOP_SYSPLL_D2P5, "syspll_d2p5", "mainpll_322p4m", 2, 1),
	FACTOR(CLK_TOP_SYSPLL_D5, "syspll_d5", "mainpll_322p4m", 1, 1),

	FACTOR(CLK_TOP_SYSPLL_D3P5, "syspll_d3p5", "mainpll_230p3m", 2, 1),

	FACTOR(CLK_TOP_UNIVPLL1_D2, "univpll1_d2", "univpll_624m", 1, 2),
	FACTOR(CLK_TOP_UNIVPLL1_D4, "univpll1_d4", "univpll_624m", 1, 4),
	FACTOR(CLK_TOP_UNIVPLL1_D6, "univpll1_d6", "univpll_624m", 1, 6),
	FACTOR(CLK_TOP_UNIVPLL1_D8, "univpll1_d8", "univpll_624m", 1, 8),
	FACTOR(CLK_TOP_UNIVPLL1_D10, "univpll1_d10", "univpll_624m", 1, 10),

	FACTOR(CLK_TOP_UNIVPLL2_D2, "univpll2_d2", "univpll_416m", 1, 2),
	FACTOR(CLK_TOP_UNIVPLL2_D4, "univpll2_d4", "univpll_416m", 1, 4),
	FACTOR(CLK_TOP_UNIVPLL2_D6, "univpll2_d6", "univpll_416m", 1, 6),
	FACTOR(CLK_TOP_UNIVPLL2_D8, "univpll2_d8", "univpll_416m", 1, 8),

	FACTOR(CLK_TOP_UNIVPLL_D3, "univpll_d3", "univpll_416m", 1, 1),
	FACTOR(CLK_TOP_UNIVPLL_D5, "univpll_d5", "univpll_249p6m", 1, 1),
	FACTOR(CLK_TOP_UNIVPLL_D7, "univpll_d7", "univpll_178p3m", 1, 1),
	FACTOR(CLK_TOP_UNIVPLL_D10, "univpll_d10", "univpll_249p6m", 1, 2),
	FACTOR(CLK_TOP_UNIVPLL_D26, "univpll_d26", "univpll_48m", 1, 1),

	FACTOR(CLK_TOP_APLL, "apll_ck", "audpll", 1, 1),
	FACTOR(CLK_TOP_APLL_D4, "apll_d4", "audpll", 1, 4),
	FACTOR(CLK_TOP_APLL_D8, "apll_d8", "audpll", 1, 8),
	FACTOR(CLK_TOP_APLL_D16, "apll_d16", "audpll", 1, 16),
	FACTOR(CLK_TOP_APLL_D24, "apll_d24", "audpll", 1, 24),

	FACTOR(CLK_TOP_LVDSPLL_D2, "lvdspll_d2", "lvdspll", 1, 2),
	FACTOR(CLK_TOP_LVDSPLL_D4, "lvdspll_d4", "lvdspll", 1, 4),
	FACTOR(CLK_TOP_LVDSPLL_D8, "lvdspll_d8", "lvdspll", 1, 8),

	FACTOR(CLK_TOP_LVDSTX_CLKDIG_CT, "lvdstx_clkdig_cts", "lvdspll", 1, 1),

Annotation

Implementation Notes