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linux/drivers/clk/qcom/dispcc-qcm2290.c
Rob Herring a96cbb146a clk: Explicitly include correct DT includes 
The DT of_device.h and of_platform.h date back to the separate
of_platform_bus_type before it as merged into the regular platform bus.
As part of that merge prepping Arm DT support 13 years ago, they
"temporarily" include each other. They also include platform_device.h
and of.h. As a result, there's a pretty much random mix of those include
files used throughout the tree. In order to detangle these headers and
replace the implicit includes with struct declarations, users need to
explicitly include the correct includes.

Acked-by: Dinh Nguyen <dinguyen@kernel.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> # samsung
Acked-by: Heiko Stuebner <heiko@sntech.de> #rockchip
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> # versaclock5
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230718143156.1066339-1-robh@kernel.org
Acked-by: Abel Vesa <abel.vesa@linaro.org> #imx
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2023-07-19 13:13:16 -07:00

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// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2020, The Linux Foundation. All rights reserved.
* Copyright (c) 2021, Linaro Ltd.
*/
#include <linux/err.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <dt-bindings/clock/qcom,dispcc-qcm2290.h>
#include "clk-alpha-pll.h"
#include "clk-branch.h"
#include "clk-rcg.h"
#include "clk-regmap.h"
#include "clk-regmap-divider.h"
#include "common.h"
#include "gdsc.h"
#include "reset.h"
enum {
P_BI_TCXO,
P_BI_TCXO_AO,
P_DISP_CC_PLL0_OUT_MAIN,
P_DSI0_PHY_PLL_OUT_BYTECLK,
P_DSI0_PHY_PLL_OUT_DSICLK,
P_GPLL0_OUT_DIV,
P_GPLL0_OUT_MAIN,
P_SLEEP_CLK,
};
static const struct pll_vco spark_vco[] = {
{ 500000000, 1000000000, 2 },
};
/* 768MHz configuration */
static const struct alpha_pll_config disp_cc_pll0_config = {
.l = 0x28,
.alpha = 0x0,
.alpha_en_mask = BIT(24),
.vco_val = 0x2 << 20,
.vco_mask = GENMASK(21, 20),
.main_output_mask = BIT(0),
.config_ctl_val = 0x4001055B,
};
static struct clk_alpha_pll disp_cc_pll0 = {
.offset = 0x0,
.vco_table = spark_vco,
.num_vco = ARRAY_SIZE(spark_vco),
.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_DEFAULT],
.clkr = {
.hw.init = &(struct clk_init_data){
.name = "disp_cc_pll0",
.parent_data = &(const struct clk_parent_data){
.fw_name = "bi_tcxo",
},
.num_parents = 1,
.ops = &clk_alpha_pll_ops,
},
},
};
static const struct parent_map disp_cc_parent_map_0[] = {
{ P_BI_TCXO, 0 },
{ P_DSI0_PHY_PLL_OUT_BYTECLK, 1 },
};
static const struct clk_parent_data disp_cc_parent_data_0[] = {
{ .fw_name = "bi_tcxo" },
{ .fw_name = "dsi0_phy_pll_out_byteclk" },
};
static const struct parent_map disp_cc_parent_map_1[] = {
{ P_BI_TCXO, 0 },
};
static const struct clk_parent_data disp_cc_parent_data_1[] = {
{ .fw_name = "bi_tcxo" },
};
static const struct parent_map disp_cc_parent_map_2[] = {
{ P_BI_TCXO_AO, 0 },
{ P_GPLL0_OUT_DIV, 4 },
};
static const struct clk_parent_data disp_cc_parent_data_2[] = {
{ .fw_name = "bi_tcxo_ao" },
{ .fw_name = "gcc_disp_gpll0_div_clk_src" },
};
static const struct parent_map disp_cc_parent_map_3[] = {
{ P_BI_TCXO, 0 },
{ P_DISP_CC_PLL0_OUT_MAIN, 1 },
{ P_GPLL0_OUT_MAIN, 4 },
};
static const struct clk_parent_data disp_cc_parent_data_3[] = {
{ .fw_name = "bi_tcxo" },
{ .hw = &disp_cc_pll0.clkr.hw },
{ .fw_name = "gcc_disp_gpll0_clk_src" },
};
static const struct parent_map disp_cc_parent_map_4[] = {
{ P_BI_TCXO, 0 },
{ P_DSI0_PHY_PLL_OUT_DSICLK, 1 },
};
static const struct clk_parent_data disp_cc_parent_data_4[] = {
{ .fw_name = "bi_tcxo" },
{ .fw_name = "dsi0_phy_pll_out_dsiclk" },
};
static const struct parent_map disp_cc_parent_map_5[] = {
{ P_SLEEP_CLK, 0 },
};
static const struct clk_parent_data disp_cc_parent_data_5[] = {
{ .fw_name = "sleep_clk" },
};
static struct clk_rcg2 disp_cc_mdss_byte0_clk_src = {
.cmd_rcgr = 0x20a4,
.mnd_width = 0,
.hid_width = 5,
.parent_map = disp_cc_parent_map_0,
.clkr.hw.init = &(struct clk_init_data){
.name = "disp_cc_mdss_byte0_clk_src",
.parent_data = disp_cc_parent_data_0,
.num_parents = ARRAY_SIZE(disp_cc_parent_data_0),
/* For set_rate and set_parent to succeed, parent(s) must be enabled */
.flags = CLK_SET_RATE_PARENT | CLK_OPS_PARENT_ENABLE,
.ops = &clk_byte2_ops,
},
};
static struct clk_regmap_div disp_cc_mdss_byte0_div_clk_src = {
.reg = 0x20bc,
.shift = 0,
.width = 2,
.clkr.hw.init = &(struct clk_init_data) {
.name = "disp_cc_mdss_byte0_div_clk_src",
.parent_hws = (const struct clk_hw*[]){
&disp_cc_mdss_byte0_clk_src.clkr.hw,
},
.num_parents = 1,
.ops = &clk_regmap_div_ops,
},
};
static const struct freq_tbl ftbl_disp_cc_mdss_ahb_clk_src[] = {
F(19200000, P_BI_TCXO_AO, 1, 0, 0),
F(37500000, P_GPLL0_OUT_DIV, 8, 0, 0),
F(75000000, P_GPLL0_OUT_DIV, 4, 0, 0),
{ }
};
static struct clk_rcg2 disp_cc_mdss_ahb_clk_src = {
.cmd_rcgr = 0x2154,
.mnd_width = 0,
.hid_width = 5,
.parent_map = disp_cc_parent_map_2,
.freq_tbl = ftbl_disp_cc_mdss_ahb_clk_src,
.clkr.hw.init = &(struct clk_init_data){
.name = "disp_cc_mdss_ahb_clk_src",
.parent_data = disp_cc_parent_data_2,
.num_parents = ARRAY_SIZE(disp_cc_parent_data_2),
.ops = &clk_rcg2_shared_ops,
},
};
static const struct freq_tbl ftbl_disp_cc_mdss_esc0_clk_src[] = {
F(19200000, P_BI_TCXO, 1, 0, 0),
{ }
};
static struct clk_rcg2 disp_cc_mdss_esc0_clk_src = {
.cmd_rcgr = 0x20c0,
.mnd_width = 0,
.hid_width = 5,
.parent_map = disp_cc_parent_map_0,
.freq_tbl = ftbl_disp_cc_mdss_esc0_clk_src,
.clkr.hw.init = &(struct clk_init_data){
.name = "disp_cc_mdss_esc0_clk_src",
.parent_data = disp_cc_parent_data_0,
.num_parents = ARRAY_SIZE(disp_cc_parent_data_0),
.ops = &clk_rcg2_ops,
},
};
static const struct freq_tbl ftbl_disp_cc_mdss_mdp_clk_src[] = {
F(19200000, P_BI_TCXO, 1, 0, 0),
F(192000000, P_DISP_CC_PLL0_OUT_MAIN, 4, 0, 0),
F(256000000, P_DISP_CC_PLL0_OUT_MAIN, 3, 0, 0),
F(307200000, P_DISP_CC_PLL0_OUT_MAIN, 2.5, 0, 0),
F(384000000, P_DISP_CC_PLL0_OUT_MAIN, 2, 0, 0),
{ }
};
static struct clk_rcg2 disp_cc_mdss_mdp_clk_src = {
.cmd_rcgr = 0x2074,
.mnd_width = 0,
.hid_width = 5,
.parent_map = disp_cc_parent_map_3,
.freq_tbl = ftbl_disp_cc_mdss_mdp_clk_src,
.clkr.hw.init = &(struct clk_init_data){
.name = "disp_cc_mdss_mdp_clk_src",
.parent_data = disp_cc_parent_data_3,
.num_parents = ARRAY_SIZE(disp_cc_parent_data_3),
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_rcg2_shared_ops,
},
};
static struct clk_rcg2 disp_cc_mdss_pclk0_clk_src = {
.cmd_rcgr = 0x205c,
.mnd_width = 8,
.hid_width = 5,
.parent_map = disp_cc_parent_map_4,
.clkr.hw.init = &(struct clk_init_data){
.name = "disp_cc_mdss_pclk0_clk_src",
.parent_data = disp_cc_parent_data_4,
.num_parents = ARRAY_SIZE(disp_cc_parent_data_4),
/* For set_rate and set_parent to succeed, parent(s) must be enabled */
.flags = CLK_SET_RATE_PARENT | CLK_OPS_PARENT_ENABLE,
.ops = &clk_pixel_ops,
},
};
static struct clk_rcg2 disp_cc_mdss_vsync_clk_src = {
.cmd_rcgr = 0x208c,
.mnd_width = 0,
.hid_width = 5,
.parent_map = disp_cc_parent_map_1,
.freq_tbl = ftbl_disp_cc_mdss_esc0_clk_src,
.clkr.hw.init = &(struct clk_init_data){
.name = "disp_cc_mdss_vsync_clk_src",
.parent_data = disp_cc_parent_data_1,
.num_parents = ARRAY_SIZE(disp_cc_parent_data_1),
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_rcg2_shared_ops,
},
};
static const struct freq_tbl ftbl_disp_cc_sleep_clk_src[] = {
F(32764, P_SLEEP_CLK, 1, 0, 0),
{ }
};
static struct clk_rcg2 disp_cc_sleep_clk_src = {
.cmd_rcgr = 0x6050,
.mnd_width = 0,
.hid_width = 5,
.parent_map = disp_cc_parent_map_5,
.freq_tbl = ftbl_disp_cc_sleep_clk_src,
.clkr.hw.init = &(struct clk_init_data){
.name = "disp_cc_sleep_clk_src",
.parent_data = disp_cc_parent_data_5,
.num_parents = ARRAY_SIZE(disp_cc_parent_data_5),
.ops = &clk_rcg2_ops,
},
};
static struct clk_branch disp_cc_mdss_ahb_clk = {
.halt_reg = 0x2044,
.halt_check = BRANCH_HALT,
.clkr = {
.enable_reg = 0x2044,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "disp_cc_mdss_ahb_clk",
.parent_hws = (const struct clk_hw*[]){
&disp_cc_mdss_ahb_clk_src.clkr.hw,
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch disp_cc_mdss_byte0_clk = {
.halt_reg = 0x201c,
.halt_check = BRANCH_HALT,
.clkr = {
.enable_reg = 0x201c,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "disp_cc_mdss_byte0_clk",
.parent_hws = (const struct clk_hw*[]){
&disp_cc_mdss_byte0_clk_src.clkr.hw,
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch disp_cc_mdss_byte0_intf_clk = {
.halt_reg = 0x2020,
.halt_check = BRANCH_HALT,
.clkr = {
.enable_reg = 0x2020,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "disp_cc_mdss_byte0_intf_clk",
.parent_hws = (const struct clk_hw*[]){
&disp_cc_mdss_byte0_div_clk_src.clkr.hw,
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch disp_cc_mdss_esc0_clk = {
.halt_reg = 0x2024,
.halt_check = BRANCH_HALT,
.clkr = {
.enable_reg = 0x2024,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "disp_cc_mdss_esc0_clk",
.parent_hws = (const struct clk_hw*[]){
&disp_cc_mdss_esc0_clk_src.clkr.hw,
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch disp_cc_mdss_mdp_clk = {
.halt_reg = 0x2008,
.halt_check = BRANCH_HALT,
.clkr = {
.enable_reg = 0x2008,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "disp_cc_mdss_mdp_clk",
.parent_hws = (const struct clk_hw*[]){
&disp_cc_mdss_mdp_clk_src.clkr.hw,
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch disp_cc_mdss_mdp_lut_clk = {
.halt_reg = 0x2010,
.halt_check = BRANCH_HALT_VOTED,
.clkr = {
.enable_reg = 0x2010,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "disp_cc_mdss_mdp_lut_clk",
.parent_hws = (const struct clk_hw*[]){
&disp_cc_mdss_mdp_clk_src.clkr.hw,
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch disp_cc_mdss_non_gdsc_ahb_clk = {
.halt_reg = 0x4004,
.halt_check = BRANCH_HALT_VOTED,
.clkr = {
.enable_reg = 0x4004,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "disp_cc_mdss_non_gdsc_ahb_clk",
.parent_hws = (const struct clk_hw*[]){
&disp_cc_mdss_ahb_clk_src.clkr.hw,
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch disp_cc_mdss_pclk0_clk = {
.halt_reg = 0x2004,
.halt_check = BRANCH_HALT,
.clkr = {
.enable_reg = 0x2004,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "disp_cc_mdss_pclk0_clk",
.parent_hws = (const struct clk_hw*[]){
&disp_cc_mdss_pclk0_clk_src.clkr.hw,
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch disp_cc_mdss_vsync_clk = {
.halt_reg = 0x2018,
.halt_check = BRANCH_HALT,
.clkr = {
.enable_reg = 0x2018,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "disp_cc_mdss_vsync_clk",
.parent_hws = (const struct clk_hw*[]){
&disp_cc_mdss_vsync_clk_src.clkr.hw,
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch disp_cc_sleep_clk = {
.halt_reg = 0x6068,
.halt_check = BRANCH_HALT,
.clkr = {
.enable_reg = 0x6068,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "disp_cc_sleep_clk",
.parent_hws = (const struct clk_hw*[]){
&disp_cc_sleep_clk_src.clkr.hw,
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_branch2_ops,
},
},
};
static const struct qcom_reset_map disp_cc_qcm2290_resets[] = {
[DISP_CC_MDSS_CORE_BCR] = { 0x2000 },
};
static struct gdsc mdss_gdsc = {
.gdscr = 0x3000,
.pd = {
.name = "mdss_gdsc",
},
.pwrsts = PWRSTS_OFF_ON,
.flags = HW_CTRL,
};
static struct gdsc *disp_cc_qcm2290_gdscs[] = {
[MDSS_GDSC] = &mdss_gdsc,
};
static struct clk_regmap *disp_cc_qcm2290_clocks[] = {
[DISP_CC_MDSS_AHB_CLK] = &disp_cc_mdss_ahb_clk.clkr,
[DISP_CC_MDSS_AHB_CLK_SRC] = &disp_cc_mdss_ahb_clk_src.clkr,
[DISP_CC_MDSS_BYTE0_CLK] = &disp_cc_mdss_byte0_clk.clkr,
[DISP_CC_MDSS_BYTE0_CLK_SRC] = &disp_cc_mdss_byte0_clk_src.clkr,
[DISP_CC_MDSS_BYTE0_DIV_CLK_SRC] = &disp_cc_mdss_byte0_div_clk_src.clkr,
[DISP_CC_MDSS_BYTE0_INTF_CLK] = &disp_cc_mdss_byte0_intf_clk.clkr,
[DISP_CC_MDSS_ESC0_CLK] = &disp_cc_mdss_esc0_clk.clkr,
[DISP_CC_MDSS_ESC0_CLK_SRC] = &disp_cc_mdss_esc0_clk_src.clkr,
[DISP_CC_MDSS_MDP_CLK] = &disp_cc_mdss_mdp_clk.clkr,
[DISP_CC_MDSS_MDP_CLK_SRC] = &disp_cc_mdss_mdp_clk_src.clkr,
[DISP_CC_MDSS_MDP_LUT_CLK] = &disp_cc_mdss_mdp_lut_clk.clkr,
[DISP_CC_MDSS_NON_GDSC_AHB_CLK] = &disp_cc_mdss_non_gdsc_ahb_clk.clkr,
[DISP_CC_MDSS_PCLK0_CLK] = &disp_cc_mdss_pclk0_clk.clkr,
[DISP_CC_MDSS_PCLK0_CLK_SRC] = &disp_cc_mdss_pclk0_clk_src.clkr,
[DISP_CC_MDSS_VSYNC_CLK] = &disp_cc_mdss_vsync_clk.clkr,
[DISP_CC_MDSS_VSYNC_CLK_SRC] = &disp_cc_mdss_vsync_clk_src.clkr,
[DISP_CC_PLL0] = &disp_cc_pll0.clkr,
[DISP_CC_SLEEP_CLK] = &disp_cc_sleep_clk.clkr,
[DISP_CC_SLEEP_CLK_SRC] = &disp_cc_sleep_clk_src.clkr,
};
static const struct regmap_config disp_cc_qcm2290_regmap_config = {
.reg_bits = 32,
.reg_stride = 4,
.val_bits = 32,
.max_register = 0x10000,
.fast_io = true,
};
static const struct qcom_cc_desc disp_cc_qcm2290_desc = {
.config = &disp_cc_qcm2290_regmap_config,
.clks = disp_cc_qcm2290_clocks,
.num_clks = ARRAY_SIZE(disp_cc_qcm2290_clocks),
.gdscs = disp_cc_qcm2290_gdscs,
.num_gdscs = ARRAY_SIZE(disp_cc_qcm2290_gdscs),
.resets = disp_cc_qcm2290_resets,
.num_resets = ARRAY_SIZE(disp_cc_qcm2290_resets),
};
static const struct of_device_id disp_cc_qcm2290_match_table[] = {
{ .compatible = "qcom,qcm2290-dispcc" },
{ }
};
MODULE_DEVICE_TABLE(of, disp_cc_qcm2290_match_table);
static int disp_cc_qcm2290_probe(struct platform_device *pdev)
{
struct regmap *regmap;
int ret;
regmap = qcom_cc_map(pdev, &disp_cc_qcm2290_desc);
if (IS_ERR(regmap))
return PTR_ERR(regmap);
clk_alpha_pll_configure(&disp_cc_pll0, regmap, &disp_cc_pll0_config);
/* Keep DISP_CC_XO_CLK always-ON */
regmap_update_bits(regmap, 0x604c, BIT(0), BIT(0));
ret = qcom_cc_really_probe(pdev, &disp_cc_qcm2290_desc, regmap);
if (ret) {
dev_err(&pdev->dev, "Failed to register DISP CC clocks\n");
return ret;
}
return ret;
}
static struct platform_driver disp_cc_qcm2290_driver = {
.probe = disp_cc_qcm2290_probe,
.driver = {
.name = "dispcc-qcm2290",
.of_match_table = disp_cc_qcm2290_match_table,
},
};
static int __init disp_cc_qcm2290_init(void)
{
return platform_driver_register(&disp_cc_qcm2290_driver);
}
subsys_initcall(disp_cc_qcm2290_init);
static void __exit disp_cc_qcm2290_exit(void)
{
platform_driver_unregister(&disp_cc_qcm2290_driver);
}
module_exit(disp_cc_qcm2290_exit);
MODULE_DESCRIPTION("QTI DISP_CC qcm2290 Driver");
MODULE_LICENSE("GPL v2");
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