drivers/clk/qcom/dispcc0-sa8775p.c

Source file repositories/reference/linux-study-clean/drivers/clk/qcom/dispcc0-sa8775p.c

File Facts

System
Linux kernel
Corpus path
drivers/clk/qcom/dispcc0-sa8775p.c
Extension
.c
Size
43819 bytes
Lines
1479
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) 2024, Qualcomm Innovation Center, Inc. All rights reserved.
 */

#include <linux/clk-provider.h>
#include <linux/module.h>
#include <linux/mod_devicetable.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/regmap.h>

#include <dt-bindings/clock/qcom,sa8775p-dispcc.h>

#include "clk-alpha-pll.h"
#include "clk-branch.h"
#include "clk-pll.h"
#include "clk-rcg.h"
#include "clk-regmap.h"
#include "clk-regmap-divider.h"
#include "clk-regmap-mux.h"
#include "common.h"
#include "gdsc.h"
#include "reset.h"

enum {
	DT_IFACE,
	DT_BI_TCXO,
	DT_BI_TCXO_AO,
	DT_SLEEP_CLK,
	DT_DP0_PHY_PLL_LINK_CLK,
	DT_DP0_PHY_PLL_VCO_DIV_CLK,
	DT_DP1_PHY_PLL_LINK_CLK,
	DT_DP1_PHY_PLL_VCO_DIV_CLK,
	DT_DSI0_PHY_PLL_OUT_BYTECLK,
	DT_DSI0_PHY_PLL_OUT_DSICLK,
	DT_DSI1_PHY_PLL_OUT_BYTECLK,
	DT_DSI1_PHY_PLL_OUT_DSICLK,
};

enum {
	P_BI_TCXO,
	P_DP0_PHY_PLL_LINK_CLK,
	P_DP0_PHY_PLL_VCO_DIV_CLK,
	P_DP1_PHY_PLL_LINK_CLK,
	P_DP1_PHY_PLL_VCO_DIV_CLK,
	P_DSI0_PHY_PLL_OUT_BYTECLK,
	P_DSI0_PHY_PLL_OUT_DSICLK,
	P_DSI1_PHY_PLL_OUT_BYTECLK,
	P_DSI1_PHY_PLL_OUT_DSICLK,
	P_MDSS_0_DISP_CC_PLL0_OUT_MAIN,
	P_MDSS_0_DISP_CC_PLL1_OUT_EVEN,
	P_MDSS_0_DISP_CC_PLL1_OUT_MAIN,
	P_SLEEP_CLK,
};

static const struct pll_vco lucid_evo_vco[] = {
	{ 249600000, 2020000000, 0 },
};

static const struct alpha_pll_config mdss_0_disp_cc_pll0_config = {
	.l = 0x3a,
	.alpha = 0x9800,
	.config_ctl_val = 0x20485699,
	.config_ctl_hi_val = 0x00182261,
	.config_ctl_hi1_val = 0x32aa299c,
	.user_ctl_val = 0x00000000,
	.user_ctl_hi_val = 0x00400805,
};

static struct clk_alpha_pll mdss_0_disp_cc_pll0 = {
	.offset = 0x0,
	.vco_table = lucid_evo_vco,
	.num_vco = ARRAY_SIZE(lucid_evo_vco),
	.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_LUCID_EVO],
	.clkr = {
		.hw.init = &(const struct clk_init_data) {
			.name = "mdss_0_disp_cc_pll0",
			.parent_data = &(const struct clk_parent_data) {
				.index = DT_BI_TCXO,
			},
			.num_parents = 1,
			.ops = &clk_alpha_pll_lucid_evo_ops,
		},
	},
};

static const struct alpha_pll_config mdss_0_disp_cc_pll1_config = {
	.l = 0x1f,
	.alpha = 0x4000,

Annotation

Implementation Notes