drivers/clk/mediatek/clk-mt7988-topckgen.c
Source file repositories/reference/linux-study-clean/drivers/clk/mediatek/clk-mt7988-topckgen.c
File Facts
- System
- Linux kernel
- Corpus path
drivers/clk/mediatek/clk-mt7988-topckgen.c- Extension
.c- Size
- 18130 bytes
- Lines
- 328
- 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
linux/clk-provider.hlinux/of.hlinux/of_address.hlinux/of_device.hlinux/platform_device.hclk-mtk.hclk-gate.hclk-mux.hdt-bindings/clock/mediatek,mt7988-clk.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
/*
* Copyright (c) 2023 MediaTek Inc.
* Author: Sam Shih <sam.shih@mediatek.com>
* Author: Xiufeng Li <Xiufeng.Li@mediatek.com>
*/
#include <linux/clk-provider.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include "clk-mtk.h"
#include "clk-gate.h"
#include "clk-mux.h"
#include <dt-bindings/clock/mediatek,mt7988-clk.h>
static DEFINE_SPINLOCK(mt7988_clk_lock);
static const struct mtk_fixed_clk top_fixed_clks[] = {
FIXED_CLK(CLK_TOP_XTAL, "top_xtal", "clkxtal", 40000000),
};
static const struct mtk_fixed_factor top_divs[] = {
FACTOR(CLK_TOP_XTAL_D2, "top_xtal_d2", "top_xtal", 1, 2),
FACTOR(CLK_TOP_RTC_32K, "top_rtc_32k", "top_xtal", 1, 1250),
FACTOR(CLK_TOP_RTC_32P7K, "top_rtc_32p7k", "top_xtal", 1, 1220),
FACTOR(CLK_TOP_MPLL_D2, "mpll_d2", "mpll", 1, 2),
FACTOR(CLK_TOP_MPLL_D3_D2, "mpll_d3_d2", "mpll", 1, 2),
FACTOR(CLK_TOP_MPLL_D4, "mpll_d4", "mpll", 1, 4),
FACTOR(CLK_TOP_MPLL_D8, "mpll_d8", "mpll", 1, 8),
FACTOR(CLK_TOP_MPLL_D8_D2, "mpll_d8_d2", "mpll", 1, 16),
FACTOR(CLK_TOP_MMPLL_D2, "mmpll_d2", "mmpll", 1, 2),
FACTOR(CLK_TOP_MMPLL_D3_D5, "mmpll_d3_d5", "mmpll", 1, 15),
FACTOR(CLK_TOP_MMPLL_D4, "mmpll_d4", "mmpll", 1, 4),
FACTOR(CLK_TOP_MMPLL_D6_D2, "mmpll_d6_d2", "mmpll", 1, 12),
FACTOR(CLK_TOP_MMPLL_D8, "mmpll_d8", "mmpll", 1, 8),
FACTOR(CLK_TOP_APLL2_D4, "apll2_d4", "apll2", 1, 4),
FACTOR(CLK_TOP_NET1PLL_D4, "net1pll_d4", "net1pll", 1, 4),
FACTOR(CLK_TOP_NET1PLL_D5, "net1pll_d5", "net1pll", 1, 5),
FACTOR(CLK_TOP_NET1PLL_D5_D2, "net1pll_d5_d2", "net1pll", 1, 10),
FACTOR(CLK_TOP_NET1PLL_D5_D4, "net1pll_d5_d4", "net1pll", 1, 20),
FACTOR(CLK_TOP_NET1PLL_D8, "net1pll_d8", "net1pll", 1, 8),
FACTOR(CLK_TOP_NET1PLL_D8_D2, "net1pll_d8_d2", "net1pll", 1, 16),
FACTOR(CLK_TOP_NET1PLL_D8_D4, "net1pll_d8_d4", "net1pll", 1, 32),
FACTOR(CLK_TOP_NET1PLL_D8_D8, "net1pll_d8_d8", "net1pll", 1, 64),
FACTOR(CLK_TOP_NET1PLL_D8_D16, "net1pll_d8_d16", "net1pll", 1, 128),
FACTOR(CLK_TOP_NET2PLL_D2, "net2pll_d2", "net2pll", 1, 2),
FACTOR(CLK_TOP_NET2PLL_D4, "net2pll_d4", "net2pll", 1, 4),
FACTOR(CLK_TOP_NET2PLL_D4_D4, "net2pll_d4_d4", "net2pll", 1, 16),
FACTOR(CLK_TOP_NET2PLL_D4_D8, "net2pll_d4_d8", "net2pll", 1, 32),
FACTOR(CLK_TOP_NET2PLL_D6, "net2pll_d6", "net2pll", 1, 6),
FACTOR(CLK_TOP_NET2PLL_D8, "net2pll_d8", "net2pll", 1, 8),
};
static const char *const netsys_parents[] = { "top_xtal", "net2pll_d2", "mmpll_d2" };
static const char *const netsys_500m_parents[] = { "top_xtal", "net1pll_d5", "net1pll_d5_d2" };
static const char *const netsys_2x_parents[] = { "top_xtal", "net2pll", "mmpll" };
static const char *const netsys_gsw_parents[] = { "top_xtal", "net1pll_d4", "net1pll_d5" };
static const char *const eth_gmii_parents[] = { "top_xtal", "net1pll_d5_d4" };
static const char *const netsys_mcu_parents[] = { "top_xtal", "net2pll", "mmpll",
"net1pll_d4", "net1pll_d5", "mpll" };
static const char *const eip197_parents[] = { "top_xtal", "netsyspll", "net2pll",
"mmpll", "net1pll_d4", "net1pll_d5" };
static const char *const axi_infra_parents[] = { "top_xtal", "net1pll_d8_d2" };
static const char *const uart_parents[] = { "top_xtal", "mpll_d8", "mpll_d8_d2" };
static const char *const emmc_250m_parents[] = { "top_xtal", "net1pll_d5_d2", "mmpll_d4" };
static const char *const emmc_400m_parents[] = { "top_xtal", "msdcpll", "mmpll_d2",
"mpll_d2", "mmpll_d4", "net1pll_d8_d2" };
static const char *const spi_parents[] = { "top_xtal", "mpll_d2", "mmpll_d4",
"net1pll_d8_d2", "net2pll_d6", "net1pll_d5_d4",
"mpll_d4", "net1pll_d8_d4" };
static const char *const nfi1x_parents[] = { "top_xtal", "mmpll_d4", "net1pll_d8_d2", "net2pll_d6",
"mpll_d4", "mmpll_d8", "net1pll_d8_d4", "mpll_d8" };
static const char *const spinfi_parents[] = { "top_xtal_d2", "top_xtal", "net1pll_d5_d4",
"mpll_d4", "mmpll_d8", "net1pll_d8_d4",
"mmpll_d6_d2", "mpll_d8" };
static const char *const pwm_parents[] = { "top_xtal", "net1pll_d8_d2", "net1pll_d5_d4",
"mpll_d4", "mpll_d8_d2", "top_rtc_32k" };
static const char *const i2c_parents[] = { "top_xtal", "net1pll_d5_d4", "mpll_d4",
"net1pll_d8_d4" };
static const char *const pcie_mbist_250m_parents[] = { "top_xtal", "net1pll_d5_d2" };
static const char *const pextp_tl_ck_parents[] = { "top_xtal", "net2pll_d6", "mmpll_d8",
"mpll_d8_d2", "top_rtc_32k" };
static const char *const usb_frmcnt_parents[] = { "top_xtal", "mmpll_d3_d5" };
static const char *const aud_parents[] = { "top_xtal", "apll2" };
static const char *const a1sys_parents[] = { "top_xtal", "apll2_d4" };
static const char *const aud_l_parents[] = { "top_xtal", "apll2", "mpll_d8_d2" };
static const char *const sspxtp_parents[] = { "top_xtal_d2", "mpll_d8_d2" };
static const char *const usxgmii_sbus_0_parents[] = { "top_xtal", "net1pll_d8_d4" };
Annotation
- Immediate include surface: `linux/clk-provider.h`, `linux/of.h`, `linux/of_address.h`, `linux/of_device.h`, `linux/platform_device.h`, `clk-mtk.h`, `clk-gate.h`, `clk-mux.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.