drivers/clk/mediatek/clk-mt8186-topckgen.c

Source file repositories/reference/linux-study-clean/drivers/clk/mediatek/clk-mt8186-topckgen.c

File Facts

System
Linux kernel
Corpus path
drivers/clk/mediatek/clk-mt8186-topckgen.c
Extension
.c
Size
22151 bytes
Lines
738
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) 2022 MediaTek Inc.
// Author: Chun-Jie Chen <chun-jie.chen@mediatek.com>

#include <linux/clk-provider.h>
#include <linux/platform_device.h>
#include <dt-bindings/clock/mt8186-clk.h>

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

static DEFINE_SPINLOCK(mt8186_clk_lock);

static const struct mtk_fixed_clk top_fixed_clks[] = {
	FIXED_CLK(CLK_TOP_ULPOSC1, "ulposc1", NULL, 250000000),
	FIXED_CLK(CLK_TOP_466M_FMEM, "hd_466m_fmem_ck", NULL, 466000000),
	FIXED_CLK(CLK_TOP_MPLL, "mpll", NULL, 208000000),
};

static const struct mtk_fixed_factor top_divs[] = {
	FACTOR_FLAGS(CLK_TOP_MAINPLL_D2, "mainpll_d2", "mainpll", 1, 2, 0),
	FACTOR_FLAGS(CLK_TOP_MAINPLL_D2_D2, "mainpll_d2_d2", "mainpll_d2", 1, 2, 0),
	FACTOR_FLAGS(CLK_TOP_MAINPLL_D2_D4, "mainpll_d2_d4", "mainpll_d2", 1, 4, 0),
	FACTOR_FLAGS(CLK_TOP_MAINPLL_D2_D16, "mainpll_d2_d16", "mainpll_d2", 1, 16, 0),
	FACTOR_FLAGS(CLK_TOP_MAINPLL_D3, "mainpll_d3", "mainpll", 1, 3, 0),
	FACTOR_FLAGS(CLK_TOP_MAINPLL_D3_D2, "mainpll_d3_d2", "mainpll_d3", 1, 2, 0),
	FACTOR_FLAGS(CLK_TOP_MAINPLL_D3_D4, "mainpll_d3_d4", "mainpll_d3", 1, 4, 0),
	FACTOR_FLAGS(CLK_TOP_MAINPLL_D5, "mainpll_d5", "mainpll", 1, 5, 0),
	FACTOR_FLAGS(CLK_TOP_MAINPLL_D5_D2, "mainpll_d5_d2", "mainpll_d5", 1, 2, 0),
	FACTOR_FLAGS(CLK_TOP_MAINPLL_D5_D4, "mainpll_d5_d4", "mainpll_d5", 1, 4, 0),
	FACTOR_FLAGS(CLK_TOP_MAINPLL_D7, "mainpll_d7", "mainpll", 1, 7, 0),
	FACTOR_FLAGS(CLK_TOP_MAINPLL_D7_D2, "mainpll_d7_d2", "mainpll_d7", 1, 2, 0),
	FACTOR_FLAGS(CLK_TOP_MAINPLL_D7_D4, "mainpll_d7_d4", "mainpll_d7", 1, 4, 0),
	FACTOR_FLAGS(CLK_TOP_UNIVPLL, "univpll", "univ2pll", 1, 2, 0),
	FACTOR_FLAGS(CLK_TOP_UNIVPLL_D2, "univpll_d2", "univpll", 1, 2, 0),
	FACTOR_FLAGS(CLK_TOP_UNIVPLL_D2_D2, "univpll_d2_d2", "univpll_d2", 1, 2, 0),
	FACTOR_FLAGS(CLK_TOP_UNIVPLL_D2_D4, "univpll_d2_d4", "univpll_d2", 1, 4, 0),
	FACTOR_FLAGS(CLK_TOP_UNIVPLL_D3, "univpll_d3", "univpll", 1, 3, 0),
	FACTOR_FLAGS(CLK_TOP_UNIVPLL_D3_D2, "univpll_d3_d2", "univpll_d3", 1, 2, 0),
	FACTOR_FLAGS(CLK_TOP_UNIVPLL_D3_D4, "univpll_d3_d4", "univpll_d3", 1, 4, 0),
	FACTOR_FLAGS(CLK_TOP_UNIVPLL_D3_D8, "univpll_d3_d8", "univpll_d3", 1, 8, 0),
	FACTOR_FLAGS(CLK_TOP_UNIVPLL_D3_D32, "univpll_d3_d32", "univpll_d3", 1, 32, 0),
	FACTOR_FLAGS(CLK_TOP_UNIVPLL_D5, "univpll_d5", "univpll", 1, 5, 0),
	FACTOR_FLAGS(CLK_TOP_UNIVPLL_D5_D2, "univpll_d5_d2", "univpll_d5", 1, 2, 0),
	FACTOR_FLAGS(CLK_TOP_UNIVPLL_D5_D4, "univpll_d5_d4", "univpll_d5", 1, 4, 0),
	FACTOR_FLAGS(CLK_TOP_UNIVPLL_D7, "univpll_d7", "univpll", 1, 7, 0),
	FACTOR_FLAGS(CLK_TOP_UNIVPLL_192M, "univpll_192m", "univ2pll", 1, 13, 0),
	FACTOR_FLAGS(CLK_TOP_UNIVPLL_192M_D4, "univpll_192m_d4", "univpll_192m", 1, 4, 0),
	FACTOR_FLAGS(CLK_TOP_UNIVPLL_192M_D8, "univpll_192m_d8", "univpll_192m", 1, 8, 0),
	FACTOR_FLAGS(CLK_TOP_UNIVPLL_192M_D16, "univpll_192m_d16", "univpll_192m", 1, 16, 0),
	FACTOR_FLAGS(CLK_TOP_UNIVPLL_192M_D32, "univpll_192m_d32", "univpll_192m", 1, 32, 0),
	FACTOR(CLK_TOP_APLL1_D2, "apll1_d2", "apll1", 1, 2),
	FACTOR(CLK_TOP_APLL1_D4, "apll1_d4", "apll1", 1, 4),
	FACTOR(CLK_TOP_APLL1_D8, "apll1_d8", "apll1", 1, 8),
	FACTOR(CLK_TOP_APLL2_D2, "apll2_d2", "apll2", 1, 2),
	FACTOR(CLK_TOP_APLL2_D4, "apll2_d4", "apll2", 1, 4),
	FACTOR(CLK_TOP_APLL2_D8, "apll2_d8", "apll2", 1, 8),
	FACTOR(CLK_TOP_MMPLL_D2, "mmpll_d2", "mmpll", 1, 2),
	FACTOR(CLK_TOP_TVDPLL_D2, "tvdpll_d2", "tvdpll", 1, 2),
	FACTOR(CLK_TOP_TVDPLL_D4, "tvdpll_d4", "tvdpll", 1, 4),
	FACTOR(CLK_TOP_TVDPLL_D8, "tvdpll_d8", "tvdpll", 1, 8),
	FACTOR(CLK_TOP_TVDPLL_D16, "tvdpll_d16", "tvdpll", 1, 16),
	FACTOR(CLK_TOP_TVDPLL_D32, "tvdpll_d32", "tvdpll", 1, 32),
	FACTOR(CLK_TOP_MSDCPLL_D2, "msdcpll_d2", "msdcpll", 1, 2),
	FACTOR(CLK_TOP_ULPOSC1_D2, "ulposc1_d2", "ulposc1", 1, 2),
	FACTOR(CLK_TOP_ULPOSC1_D4, "ulposc1_d4", "ulposc1", 1, 4),
	FACTOR(CLK_TOP_ULPOSC1_D8, "ulposc1_d8", "ulposc1", 1, 8),
	FACTOR(CLK_TOP_ULPOSC1_D10, "ulposc1_d10", "ulposc1", 1, 10),
	FACTOR(CLK_TOP_ULPOSC1_D16, "ulposc1_d16", "ulposc1", 1, 16),
	FACTOR(CLK_TOP_ULPOSC1_D32, "ulposc1_d32", "ulposc1", 1, 32),
	FACTOR(CLK_TOP_ADSPPLL_D2, "adsppll_d2", "adsppll", 1, 2),
	FACTOR(CLK_TOP_ADSPPLL_D4, "adsppll_d4", "adsppll", 1, 4),
	FACTOR(CLK_TOP_ADSPPLL_D8, "adsppll_d8", "adsppll", 1, 8),
	FACTOR(CLK_TOP_NNAPLL_D2, "nnapll_d2", "nnapll", 1, 2),
	FACTOR(CLK_TOP_NNAPLL_D4, "nnapll_d4", "nnapll", 1, 4),
	FACTOR(CLK_TOP_NNAPLL_D8, "nnapll_d8", "nnapll", 1, 8),
	FACTOR(CLK_TOP_NNA2PLL_D2, "nna2pll_d2", "nna2pll", 1, 2),
	FACTOR(CLK_TOP_NNA2PLL_D4, "nna2pll_d4", "nna2pll", 1, 4),
	FACTOR(CLK_TOP_NNA2PLL_D8, "nna2pll_d8", "nna2pll", 1, 8),
	FACTOR(CLK_TOP_F_BIST2FPC, "f_bist2fpc_ck", "univpll_d3_d2", 1, 1),
};

static const char * const axi_parents[] = {
	"clk26m",
	"mainpll_d7",
	"mainpll_d2_d4",
	"univpll_d7"
};

Annotation

Implementation Notes