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linux/drivers/clk/qcom/videocc-sm8350.c
Konrad Dybcio e5e527d1ed clk: qcom: videocc-sm8350: Add SC8280XP support 
SC8280XP, being a partial derivative of SM8350, shares almost the exact
same videocc block. Extend the 8350 driver to support the bigger brother.

The only notable changes are higher possible frequencies on some clocks
and some switcheroo within the XO/sleep registers (probably due to some
different board crystal configuration).

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20230703-topic-8280_videocc-v2-2-c88269806269@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2023-07-31 14:15:44 -07:00

593 lines
15 KiB
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// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2019-2020, The Linux Foundation. All rights reserved.
* Copyright (c) 2023, Linaro Limited
*/
#include <linux/clk-provider.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/pm_clock.h>
#include <linux/pm_runtime.h>
#include <linux/regmap.h>
#include <dt-bindings/clock/qcom,sm8350-videocc.h>
#include <dt-bindings/reset/qcom,sm8350-videocc.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 "reset.h"
#include "gdsc.h"
enum {
DT_BI_TCXO,
DT_BI_TCXO_AO,
DT_SLEEP_CLK,
};
enum {
P_BI_TCXO,
P_BI_TCXO_AO,
P_SLEEP_CLK,
P_VIDEO_PLL0_OUT_MAIN,
P_VIDEO_PLL1_OUT_MAIN,
};
static const struct pll_vco lucid_5lpe_vco[] = {
{ 249600000, 1750000000, 0 },
};
static const struct pll_vco lucid_5lpe_vco_8280xp[] = {
{ 249600000, 1800000000, 0 },
};
static const struct alpha_pll_config video_pll0_config = {
.l = 0x25,
.alpha = 0x8000,
.config_ctl_val = 0x20485699,
.config_ctl_hi_val = 0x00002261,
.config_ctl_hi1_val = 0x2a9a699c,
.test_ctl_val = 0x00000000,
.test_ctl_hi_val = 0x00000000,
.test_ctl_hi1_val = 0x01800000,
.user_ctl_val = 0x00000000,
.user_ctl_hi_val = 0x00000805,
.user_ctl_hi1_val = 0x00000000,
};
static struct clk_alpha_pll video_pll0 = {
.offset = 0x42c,
.vco_table = lucid_5lpe_vco,
.num_vco = ARRAY_SIZE(lucid_5lpe_vco),
.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_LUCID],
.clkr = {
.hw.init = &(const struct clk_init_data) {
.name = "video_pll0",
.parent_data = &(const struct clk_parent_data){
.index = DT_BI_TCXO,
},
.num_parents = 1,
.ops = &clk_alpha_pll_lucid_5lpe_ops,
},
},
};
static const struct alpha_pll_config video_pll1_config = {
.l = 0x2b,
.alpha = 0xc000,
.config_ctl_val = 0x20485699,
.config_ctl_hi_val = 0x00002261,
.config_ctl_hi1_val = 0x2a9a699c,
.test_ctl_val = 0x00000000,
.test_ctl_hi_val = 0x00000000,
.test_ctl_hi1_val = 0x01800000,
.user_ctl_val = 0x00000000,
.user_ctl_hi_val = 0x00000805,
.user_ctl_hi1_val = 0x00000000,
};
static struct clk_alpha_pll video_pll1 = {
.offset = 0x7d0,
.vco_table = lucid_5lpe_vco,
.num_vco = ARRAY_SIZE(lucid_5lpe_vco),
.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_LUCID],
.clkr = {
.hw.init = &(const struct clk_init_data) {
.name = "video_pll1",
.parent_data = &(const struct clk_parent_data){
.index = DT_BI_TCXO,
},
.num_parents = 1,
.ops = &clk_alpha_pll_lucid_5lpe_ops,
},
},
};
static const struct parent_map video_cc_parent_map_0[] = {
{ P_BI_TCXO_AO, 0 },
};
static const struct clk_parent_data video_cc_parent_data_0[] = {
{ .index = DT_BI_TCXO_AO },
};
static const struct parent_map video_cc_parent_map_1[] = {
{ P_BI_TCXO, 0 },
{ P_VIDEO_PLL0_OUT_MAIN, 1 },
};
static const struct clk_parent_data video_cc_parent_data_1[] = {
{ .index = DT_BI_TCXO },
{ .hw = &video_pll0.clkr.hw },
};
static const struct parent_map video_cc_parent_map_2[] = {
{ P_BI_TCXO, 0 },
{ P_VIDEO_PLL1_OUT_MAIN, 1 },
};
static const struct clk_parent_data video_cc_parent_data_2[] = {
{ .index = DT_BI_TCXO },
{ .hw = &video_pll1.clkr.hw },
};
static const struct freq_tbl ftbl_video_cc_ahb_clk_src[] = {
F(19200000, P_BI_TCXO, 1, 0, 0),
{ }
};
static struct clk_rcg2 video_cc_ahb_clk_src = {
.cmd_rcgr = 0xbd4,
.mnd_width = 0,
.hid_width = 5,
.parent_map = video_cc_parent_map_0,
.freq_tbl = ftbl_video_cc_ahb_clk_src,
.clkr.hw.init = &(const struct clk_init_data) {
.name = "video_cc_ahb_clk_src",
.parent_data = video_cc_parent_data_0,
.num_parents = ARRAY_SIZE(video_cc_parent_data_0),
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_rcg2_shared_ops,
},
};
static const struct freq_tbl ftbl_video_cc_mvs0_clk_src[] = {
F(720000000, P_VIDEO_PLL0_OUT_MAIN, 1, 0, 0),
F(1014000000, P_VIDEO_PLL0_OUT_MAIN, 1, 0, 0),
F(1098000000, P_VIDEO_PLL0_OUT_MAIN, 1, 0, 0),
F(1332000000, P_VIDEO_PLL0_OUT_MAIN, 1, 0, 0),
{ }
};
static const struct freq_tbl ftbl_video_cc_mvs0_clk_src_8280xp[] = {
F(720000000, P_VIDEO_PLL0_OUT_MAIN, 1, 0, 0),
F(1014000000, P_VIDEO_PLL0_OUT_MAIN, 1, 0, 0),
F(1098000000, P_VIDEO_PLL0_OUT_MAIN, 1, 0, 0),
F(1332000000, P_VIDEO_PLL0_OUT_MAIN, 1, 0, 0),
F(1599000000, P_VIDEO_PLL0_OUT_MAIN, 1, 0, 0),
F(1680000000, P_VIDEO_PLL0_OUT_MAIN, 1, 0, 0),
{ }
};
static struct clk_rcg2 video_cc_mvs0_clk_src = {
.cmd_rcgr = 0xb94,
.mnd_width = 0,
.hid_width = 5,
.parent_map = video_cc_parent_map_1,
.freq_tbl = ftbl_video_cc_mvs0_clk_src,
.clkr.hw.init = &(const struct clk_init_data) {
.name = "video_cc_mvs0_clk_src",
.parent_data = video_cc_parent_data_1,
.num_parents = ARRAY_SIZE(video_cc_parent_data_1),
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_rcg2_shared_ops,
},
};
static const struct freq_tbl ftbl_video_cc_mvs1_clk_src[] = {
F(840000000, P_VIDEO_PLL1_OUT_MAIN, 1, 0, 0),
F(1098000000, P_VIDEO_PLL1_OUT_MAIN, 1, 0, 0),
F(1332000000, P_VIDEO_PLL1_OUT_MAIN, 1, 0, 0),
{ }
};
static const struct freq_tbl ftbl_video_cc_mvs1_clk_src_8280xp[] = {
F(840000000, P_VIDEO_PLL1_OUT_MAIN, 1, 0, 0),
F(1098000000, P_VIDEO_PLL1_OUT_MAIN, 1, 0, 0),
F(1332000000, P_VIDEO_PLL1_OUT_MAIN, 1, 0, 0),
F(1600000000, P_VIDEO_PLL1_OUT_MAIN, 1, 0, 0),
F(1800000000, P_VIDEO_PLL1_OUT_MAIN, 1, 0, 0),
{ }
};
static struct clk_rcg2 video_cc_mvs1_clk_src = {
.cmd_rcgr = 0xbb4,
.mnd_width = 0,
.hid_width = 5,
.parent_map = video_cc_parent_map_2,
.freq_tbl = ftbl_video_cc_mvs1_clk_src,
.clkr.hw.init = &(const struct clk_init_data) {
.name = "video_cc_mvs1_clk_src",
.parent_data = video_cc_parent_data_2,
.num_parents = ARRAY_SIZE(video_cc_parent_data_2),
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_rcg2_shared_ops,
},
};
static const struct freq_tbl ftbl_video_cc_sleep_clk_src[] = {
F(32000, P_SLEEP_CLK, 1, 0, 0),
{ }
};
static struct clk_rcg2 video_cc_sleep_clk_src = {
.cmd_rcgr = 0xef0,
.mnd_width = 0,
.hid_width = 5,
.freq_tbl = ftbl_video_cc_sleep_clk_src,
.clkr.hw.init = &(const struct clk_init_data) {
.name = "video_cc_sleep_clk_src",
.parent_data = &(const struct clk_parent_data){
.index = DT_SLEEP_CLK,
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_rcg2_ops,
},
};
static struct clk_rcg2 video_cc_xo_clk_src = {
.cmd_rcgr = 0xecc,
.mnd_width = 0,
.hid_width = 5,
.parent_map = video_cc_parent_map_0,
.freq_tbl = ftbl_video_cc_ahb_clk_src,
.clkr.hw.init = &(const struct clk_init_data) {
.name = "video_cc_xo_clk_src",
.parent_data = video_cc_parent_data_0,
.num_parents = ARRAY_SIZE(video_cc_parent_data_0),
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_rcg2_ops,
},
};
static struct clk_regmap_div video_cc_mvs0_div_clk_src = {
.reg = 0xd54,
.shift = 0,
.width = 4,
.clkr.hw.init = &(const struct clk_init_data) {
.name = "video_cc_mvs0_div_clk_src",
.parent_hws = (const struct clk_hw*[]){
&video_cc_mvs0_clk_src.clkr.hw,
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_regmap_div_ro_ops,
},
};
static struct clk_regmap_div video_cc_mvs0c_div2_div_clk_src = {
.reg = 0xc54,
.shift = 0,
.width = 4,
.clkr.hw.init = &(const struct clk_init_data) {
.name = "video_cc_mvs0c_div2_div_clk_src",
.parent_hws = (const struct clk_hw*[]){
&video_cc_mvs0_clk_src.clkr.hw,
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_regmap_div_ro_ops,
},
};
static struct clk_regmap_div video_cc_mvs1_div_clk_src = {
.reg = 0xdd4,
.shift = 0,
.width = 4,
.clkr.hw.init = &(const struct clk_init_data) {
.name = "video_cc_mvs1_div_clk_src",
.parent_hws = (const struct clk_hw*[]){
&video_cc_mvs1_clk_src.clkr.hw,
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_regmap_div_ro_ops,
},
};
static struct clk_regmap_div video_cc_mvs1c_div2_div_clk_src = {
.reg = 0xcf4,
.shift = 0,
.width = 4,
.clkr.hw.init = &(const struct clk_init_data) {
.name = "video_cc_mvs1c_div2_div_clk_src",
.parent_hws = (const struct clk_hw*[]){
&video_cc_mvs1_clk_src.clkr.hw,
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_regmap_div_ro_ops,
},
};
static struct clk_branch video_cc_mvs0_clk = {
.halt_reg = 0xd34,
.halt_check = BRANCH_HALT_VOTED,
.hwcg_reg = 0xd34,
.hwcg_bit = 1,
.clkr = {
.enable_reg = 0xd34,
.enable_mask = BIT(0),
.hw.init = &(const struct clk_init_data) {
.name = "video_cc_mvs0_clk",
.parent_hws = (const struct clk_hw*[]){
&video_cc_mvs0_div_clk_src.clkr.hw,
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch video_cc_mvs0c_clk = {
.halt_reg = 0xc34,
.halt_check = BRANCH_HALT,
.clkr = {
.enable_reg = 0xc34,
.enable_mask = BIT(0),
.hw.init = &(const struct clk_init_data) {
.name = "video_cc_mvs0c_clk",
.parent_hws = (const struct clk_hw*[]){
&video_cc_mvs0c_div2_div_clk_src.clkr.hw,
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch video_cc_mvs1_clk = {
.halt_reg = 0xdb4,
.halt_check = BRANCH_HALT_VOTED,
.hwcg_reg = 0xdb4,
.hwcg_bit = 1,
.clkr = {
.enable_reg = 0xdb4,
.enable_mask = BIT(0),
.hw.init = &(const struct clk_init_data) {
.name = "video_cc_mvs1_clk",
.parent_hws = (const struct clk_hw*[]){
&video_cc_mvs1_div_clk_src.clkr.hw,
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch video_cc_mvs1_div2_clk = {
.halt_reg = 0xdf4,
.halt_check = BRANCH_HALT_VOTED,
.hwcg_reg = 0xdf4,
.hwcg_bit = 1,
.clkr = {
.enable_reg = 0xdf4,
.enable_mask = BIT(0),
.hw.init = &(const struct clk_init_data) {
.name = "video_cc_mvs1_div2_clk",
.parent_hws = (const struct clk_hw*[]){
&video_cc_mvs1c_div2_div_clk_src.clkr.hw,
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch video_cc_mvs1c_clk = {
.halt_reg = 0xcd4,
.halt_check = BRANCH_HALT,
.clkr = {
.enable_reg = 0xcd4,
.enable_mask = BIT(0),
.hw.init = &(const struct clk_init_data) {
.name = "video_cc_mvs1c_clk",
.parent_hws = (const struct clk_hw*[]){
&video_cc_mvs1c_div2_div_clk_src.clkr.hw,
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch video_cc_sleep_clk = {
.halt_reg = 0xf10,
.halt_check = BRANCH_HALT,
.clkr = {
.enable_reg = 0xf10,
.enable_mask = BIT(0),
.hw.init = &(const struct clk_init_data) {
.name = "video_cc_sleep_clk",
.parent_hws = (const struct clk_hw*[]){
&video_cc_sleep_clk_src.clkr.hw,
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_branch2_ops,
},
},
};
static struct gdsc mvs0c_gdsc = {
.gdscr = 0xbf8,
.pd = {
.name = "mvs0c_gdsc",
},
.flags = RETAIN_FF_ENABLE,
.pwrsts = PWRSTS_OFF_ON,
};
static struct gdsc mvs1c_gdsc = {
.gdscr = 0xc98,
.pd = {
.name = "mvs1c_gdsc",
},
.flags = RETAIN_FF_ENABLE,
.pwrsts = PWRSTS_OFF_ON,
};
static struct gdsc mvs0_gdsc = {
.gdscr = 0xd18,
.pd = {
.name = "mvs0_gdsc",
},
.flags = HW_CTRL | RETAIN_FF_ENABLE,
.pwrsts = PWRSTS_OFF_ON,
};
static struct gdsc mvs1_gdsc = {
.gdscr = 0xd98,
.pd = {
.name = "mvs1_gdsc",
},
.flags = HW_CTRL | RETAIN_FF_ENABLE,
.pwrsts = PWRSTS_OFF_ON,
};
static struct clk_regmap *video_cc_sm8350_clocks[] = {
[VIDEO_CC_AHB_CLK_SRC] = &video_cc_ahb_clk_src.clkr,
[VIDEO_CC_MVS0_CLK] = &video_cc_mvs0_clk.clkr,
[VIDEO_CC_MVS0_CLK_SRC] = &video_cc_mvs0_clk_src.clkr,
[VIDEO_CC_MVS0_DIV_CLK_SRC] = &video_cc_mvs0_div_clk_src.clkr,
[VIDEO_CC_MVS0C_CLK] = &video_cc_mvs0c_clk.clkr,
[VIDEO_CC_MVS0C_DIV2_DIV_CLK_SRC] = &video_cc_mvs0c_div2_div_clk_src.clkr,
[VIDEO_CC_MVS1_CLK] = &video_cc_mvs1_clk.clkr,
[VIDEO_CC_MVS1_CLK_SRC] = &video_cc_mvs1_clk_src.clkr,
[VIDEO_CC_MVS1_DIV2_CLK] = &video_cc_mvs1_div2_clk.clkr,
[VIDEO_CC_MVS1_DIV_CLK_SRC] = &video_cc_mvs1_div_clk_src.clkr,
[VIDEO_CC_MVS1C_CLK] = &video_cc_mvs1c_clk.clkr,
[VIDEO_CC_MVS1C_DIV2_DIV_CLK_SRC] = &video_cc_mvs1c_div2_div_clk_src.clkr,
[VIDEO_CC_SLEEP_CLK] = &video_cc_sleep_clk.clkr,
[VIDEO_CC_SLEEP_CLK_SRC] = &video_cc_sleep_clk_src.clkr,
[VIDEO_CC_XO_CLK_SRC] = &video_cc_xo_clk_src.clkr,
[VIDEO_PLL0] = &video_pll0.clkr,
[VIDEO_PLL1] = &video_pll1.clkr,
};
static const struct qcom_reset_map video_cc_sm8350_resets[] = {
[VIDEO_CC_CVP_INTERFACE_BCR] = { 0xe54 },
[VIDEO_CC_CVP_MVS0_BCR] = { 0xd14 },
[VIDEO_CC_MVS0C_CLK_ARES] = { 0xc34, 2 },
[VIDEO_CC_CVP_MVS0C_BCR] = { 0xbf4 },
[VIDEO_CC_CVP_MVS1_BCR] = { 0xd94 },
[VIDEO_CC_MVS1C_CLK_ARES] = { 0xcd4, 2 },
[VIDEO_CC_CVP_MVS1C_BCR] = { 0xc94 },
};
static struct gdsc *video_cc_sm8350_gdscs[] = {
[MVS0C_GDSC] = &mvs0c_gdsc,
[MVS1C_GDSC] = &mvs1c_gdsc,
[MVS0_GDSC] = &mvs0_gdsc,
[MVS1_GDSC] = &mvs1_gdsc,
};
static const struct regmap_config video_cc_sm8350_regmap_config = {
.reg_bits = 32,
.reg_stride = 4,
.val_bits = 32,
.max_register = 0x10000,
.fast_io = true,
};
static struct qcom_cc_desc video_cc_sm8350_desc = {
.config = &video_cc_sm8350_regmap_config,
.clks = video_cc_sm8350_clocks,
.num_clks = ARRAY_SIZE(video_cc_sm8350_clocks),
.resets = video_cc_sm8350_resets,
.num_resets = ARRAY_SIZE(video_cc_sm8350_resets),
.gdscs = video_cc_sm8350_gdscs,
.num_gdscs = ARRAY_SIZE(video_cc_sm8350_gdscs),
};
static int video_cc_sm8350_probe(struct platform_device *pdev)
{
u32 video_cc_xo_clk_cbcr = 0xeec;
struct regmap *regmap;
int ret;
ret = devm_pm_runtime_enable(&pdev->dev);
if (ret)
return ret;
ret = pm_runtime_resume_and_get(&pdev->dev);
if (ret)
return ret;
if (of_device_is_compatible(pdev->dev.of_node, "qcom,sc8280xp-videocc")) {
video_cc_sleep_clk_src.cmd_rcgr = 0xf38;
video_cc_sleep_clk.halt_reg = 0xf58;
video_cc_sleep_clk.clkr.enable_reg = 0xf58;
video_cc_xo_clk_src.cmd_rcgr = 0xf14;
video_cc_xo_clk_cbcr = 0xf34;
video_pll0.vco_table = video_pll1.vco_table = lucid_5lpe_vco_8280xp;
/* No change, but assign it for completeness */
video_pll0.num_vco = video_pll1.num_vco = ARRAY_SIZE(lucid_5lpe_vco_8280xp);
video_cc_mvs0_clk_src.freq_tbl = ftbl_video_cc_mvs0_clk_src_8280xp;
video_cc_mvs1_clk_src.freq_tbl = ftbl_video_cc_mvs1_clk_src_8280xp;
}
regmap = qcom_cc_map(pdev, &video_cc_sm8350_desc);
if (IS_ERR(regmap)) {
pm_runtime_put(&pdev->dev);
return PTR_ERR(regmap);
}
clk_lucid_pll_configure(&video_pll0, regmap, &video_pll0_config);
clk_lucid_pll_configure(&video_pll1, regmap, &video_pll1_config);
/*
* Keep clocks always enabled:
* video_cc_ahb_clk
* video_cc_xo_clk
*/
regmap_update_bits(regmap, 0xe58, BIT(0), BIT(0));
regmap_update_bits(regmap, video_cc_xo_clk_cbcr, BIT(0), BIT(0));
ret = qcom_cc_really_probe(pdev, &video_cc_sm8350_desc, regmap);
pm_runtime_put(&pdev->dev);
return ret;
}
static const struct of_device_id video_cc_sm8350_match_table[] = {
{ .compatible = "qcom,sc8280xp-videocc" },
{ .compatible = "qcom,sm8350-videocc" },
{ }
};
MODULE_DEVICE_TABLE(of, video_cc_sm8350_match_table);
static struct platform_driver video_cc_sm8350_driver = {
.probe = video_cc_sm8350_probe,
.driver = {
.name = "sm8350-videocc",
.of_match_table = video_cc_sm8350_match_table,
},
};
module_platform_driver(video_cc_sm8350_driver);
MODULE_DESCRIPTION("QTI SM8350 VIDEOCC Driver");
MODULE_LICENSE("GPL");
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