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clk: qcom: videocc-sm8450: Add video clock controller driver for SM8450

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Add support for the video clock controller driver for peripheral clock
clients to be able to request for video cc clocks.

Signed-off-by: Taniya Das <quic_tdas@quicinc.com>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230524140656.7076-3-quic_tdas@quicinc.com
This commit is contained in:
Taniya Das 2023-05-24 19:36:55 +05:30 committed by Bjorn Andersson
parent cc8d2cf5cd
commit 441fe711be
3 changed files with 473 additions and 0 deletions
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9
drivers/clk/qcom/Kconfig
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@ -971,4 +971,13 @@ config CLK_GFM_LPASS_SM8250
Support for the Glitch Free Mux (GFM) Low power audio
subsystem (LPASS) clocks found on SM8250 SoCs.
config SM_VIDEOCC_8450
tristate "SM8450 Video Clock Controller"
select SM_GCC_8450
select QCOM_GDSC
help
Support for the video clock controller on Qualcomm Technologies, Inc.
SM8450 devices.
Say Y if you want to support video devices and functionality such as
video encode/decode.
endif

1
drivers/clk/qcom/Makefile
View File

@ -128,6 +128,7 @@ obj-$(CONFIG_SM_TCSRCC_8550) += tcsrcc-sm8550.o
obj-$(CONFIG_SM_VIDEOCC_8150) += videocc-sm8150.o
obj-$(CONFIG_SM_VIDEOCC_8250) += videocc-sm8250.o
obj-$(CONFIG_SM_VIDEOCC_8350) += videocc-sm8350.o
obj-$(CONFIG_SM_VIDEOCC_8450) += videocc-sm8450.o
obj-$(CONFIG_SPMI_PMIC_CLKDIV) += clk-spmi-pmic-div.o
obj-$(CONFIG_KPSS_XCC) += kpss-xcc.o
obj-$(CONFIG_QCOM_HFPLL) += hfpll.o

463
drivers/clk/qcom/videocc-sm8450.c Normal file
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@ -0,0 +1,463 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2023, Qualcomm Innovation Center, Inc. All rights reserved.
*/
#include <linux/clk-provider.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/pm_runtime.h>
#include <linux/regmap.h>
#include <dt-bindings/clock/qcom,sm8450-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 "gdsc.h"
#include "reset.h"
enum {
DT_BI_TCXO,
};
enum {
P_BI_TCXO,
P_VIDEO_CC_PLL0_OUT_MAIN,
P_VIDEO_CC_PLL1_OUT_MAIN,
};
static const struct pll_vco lucid_evo_vco[] = {
{ 249600000, 2020000000, 0 },
};
static const struct alpha_pll_config video_cc_pll0_config = {
/* .l includes CAL_L_VAL, L_VAL fields */
.l = 0x0044001e,
.alpha = 0x0,
.config_ctl_val = 0x20485699,
.config_ctl_hi_val = 0x00182261,
.config_ctl_hi1_val = 0x32aa299c,
.user_ctl_val = 0x00000000,
.user_ctl_hi_val = 0x00000805,
};
static struct clk_alpha_pll video_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 = "video_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 video_cc_pll1_config = {
/* .l includes CAL_L_VAL, L_VAL fields */
.l = 0x0044002b,
.alpha = 0xc000,
.config_ctl_val = 0x20485699,
.config_ctl_hi_val = 0x00182261,
.config_ctl_hi1_val = 0x32aa299c,
.user_ctl_val = 0x00000000,
.user_ctl_hi_val = 0x00000805,
};
static struct clk_alpha_pll video_cc_pll1 = {
.offset = 0x1000,
.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 = "video_cc_pll1",
.parent_data = &(const struct clk_parent_data) {
.index = DT_BI_TCXO,
},
.num_parents = 1,
.ops = &clk_alpha_pll_lucid_evo_ops,
},
},
};
static const struct parent_map video_cc_parent_map_0[] = {
{ P_BI_TCXO, 0 },
{ P_VIDEO_CC_PLL0_OUT_MAIN, 1 },
};
static const struct clk_parent_data video_cc_parent_data_0[] = {
{ .index = DT_BI_TCXO },
{ .hw = &video_cc_pll0.clkr.hw },
};
static const struct parent_map video_cc_parent_map_1[] = {
{ P_BI_TCXO, 0 },
{ P_VIDEO_CC_PLL1_OUT_MAIN, 1 },
};
static const struct clk_parent_data video_cc_parent_data_1[] = {
{ .index = DT_BI_TCXO },
{ .hw = &video_cc_pll1.clkr.hw },
};
static const struct freq_tbl ftbl_video_cc_mvs0_clk_src[] = {
F(576000000, P_VIDEO_CC_PLL0_OUT_MAIN, 1, 0, 0),
F(720000000, P_VIDEO_CC_PLL0_OUT_MAIN, 1, 0, 0),
F(1014000000, P_VIDEO_CC_PLL0_OUT_MAIN, 1, 0, 0),
F(1098000000, P_VIDEO_CC_PLL0_OUT_MAIN, 1, 0, 0),
F(1332000000, P_VIDEO_CC_PLL0_OUT_MAIN, 1, 0, 0),
{ }
};
static struct clk_rcg2 video_cc_mvs0_clk_src = {
.cmd_rcgr = 0x8000,
.mnd_width = 0,
.hid_width = 5,
.parent_map = video_cc_parent_map_0,
.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_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_mvs1_clk_src[] = {
F(840000000, P_VIDEO_CC_PLL1_OUT_MAIN, 1, 0, 0),
F(1050000000, P_VIDEO_CC_PLL1_OUT_MAIN, 1, 0, 0),
F(1350000000, P_VIDEO_CC_PLL1_OUT_MAIN, 1, 0, 0),
F(1500000000, P_VIDEO_CC_PLL1_OUT_MAIN, 1, 0, 0),
F(1650000000, P_VIDEO_CC_PLL1_OUT_MAIN, 1, 0, 0),
{ }
};
static struct clk_rcg2 video_cc_mvs1_clk_src = {
.cmd_rcgr = 0x8018,
.mnd_width = 0,
.hid_width = 5,
.parent_map = video_cc_parent_map_1,
.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_1,
.num_parents = ARRAY_SIZE(video_cc_parent_data_1),
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_rcg2_shared_ops,
},
};
static struct clk_regmap_div video_cc_mvs0_div_clk_src = {
.reg = 0x80b8,
.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 = 0x806c,
.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 = 0x80dc,
.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 = 0x8094,
.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 = 0x80b0,
.halt_check = BRANCH_HALT_SKIP,
.hwcg_reg = 0x80b0,
.hwcg_bit = 1,
.clkr = {
.enable_reg = 0x80b0,
.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 = 0x8064,
.halt_check = BRANCH_HALT,
.clkr = {
.enable_reg = 0x8064,
.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 = 0x80d4,
.halt_check = BRANCH_HALT_SKIP,
.hwcg_reg = 0x80d4,
.hwcg_bit = 1,
.clkr = {
.enable_reg = 0x80d4,
.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_mvs1c_clk = {
.halt_reg = 0x808c,
.halt_check = BRANCH_HALT,
.clkr = {
.enable_reg = 0x808c,
.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 gdsc video_cc_mvs0c_gdsc = {
.gdscr = 0x804c,
.en_rest_wait_val = 0x2,
.en_few_wait_val = 0x2,
.clk_dis_wait_val = 0x6,
.pd = {
.name = "video_cc_mvs0c_gdsc",
},
.pwrsts = PWRSTS_OFF_ON,
.flags = RETAIN_FF_ENABLE,
};
static struct gdsc video_cc_mvs0_gdsc = {
.gdscr = 0x809c,
.en_rest_wait_val = 0x2,
.en_few_wait_val = 0x2,
.clk_dis_wait_val = 0x6,
.pd = {
.name = "video_cc_mvs0_gdsc",
},
.pwrsts = PWRSTS_OFF_ON,
.parent = &video_cc_mvs0c_gdsc.pd,
.flags = RETAIN_FF_ENABLE | HW_CTRL,
};
static struct gdsc video_cc_mvs1c_gdsc = {
.gdscr = 0x8074,
.en_rest_wait_val = 0x2,
.en_few_wait_val = 0x2,
.clk_dis_wait_val = 0x6,
.pd = {
.name = "video_cc_mvs1c_gdsc",
},
.pwrsts = PWRSTS_OFF_ON,
.flags = RETAIN_FF_ENABLE,
};
static struct gdsc video_cc_mvs1_gdsc = {
.gdscr = 0x80c0,
.en_rest_wait_val = 0x2,
.en_few_wait_val = 0x2,
.clk_dis_wait_val = 0x6,
.pd = {
.name = "video_cc_mvs1_gdsc",
},
.pwrsts = PWRSTS_OFF_ON,
.parent = &video_cc_mvs1c_gdsc.pd,
.flags = RETAIN_FF_ENABLE | HW_CTRL,
};
static struct clk_regmap *video_cc_sm8450_clocks[] = {
[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_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_PLL0] = &video_cc_pll0.clkr,
[VIDEO_CC_PLL1] = &video_cc_pll1.clkr,
};
static struct gdsc *video_cc_sm8450_gdscs[] = {
[VIDEO_CC_MVS0C_GDSC] = &video_cc_mvs0c_gdsc,
[VIDEO_CC_MVS0_GDSC] = &video_cc_mvs0_gdsc,
[VIDEO_CC_MVS1C_GDSC] = &video_cc_mvs1c_gdsc,
[VIDEO_CC_MVS1_GDSC] = &video_cc_mvs1_gdsc,
};
static const struct qcom_reset_map video_cc_sm8450_resets[] = {
[CVP_VIDEO_CC_INTERFACE_BCR] = { 0x80e0 },
[CVP_VIDEO_CC_MVS0_BCR] = { 0x8098 },
[CVP_VIDEO_CC_MVS0C_BCR] = { 0x8048 },
[CVP_VIDEO_CC_MVS1_BCR] = { 0x80bc },
[CVP_VIDEO_CC_MVS1C_BCR] = { 0x8070 },
[VIDEO_CC_MVS0C_CLK_ARES] = { 0x8064, 2 },
[VIDEO_CC_MVS1C_CLK_ARES] = { 0x808c, 2 },
};
static const struct regmap_config video_cc_sm8450_regmap_config = {
.reg_bits = 32,
.reg_stride = 4,
.val_bits = 32,
.max_register = 0x9f4c,
.fast_io = true,
};
static struct qcom_cc_desc video_cc_sm8450_desc = {
.config = &video_cc_sm8450_regmap_config,
.clks = video_cc_sm8450_clocks,
.num_clks = ARRAY_SIZE(video_cc_sm8450_clocks),
.resets = video_cc_sm8450_resets,
.num_resets = ARRAY_SIZE(video_cc_sm8450_resets),
.gdscs = video_cc_sm8450_gdscs,
.num_gdscs = ARRAY_SIZE(video_cc_sm8450_gdscs),
};
static const struct of_device_id video_cc_sm8450_match_table[] = {
{ .compatible = "qcom,sm8450-videocc" },
{ }
};
MODULE_DEVICE_TABLE(of, video_cc_sm8450_match_table);
static int video_cc_sm8450_probe(struct platform_device *pdev)
{
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;
regmap = qcom_cc_map(pdev, &video_cc_sm8450_desc);
if (IS_ERR(regmap)) {
pm_runtime_put(&pdev->dev);
return PTR_ERR(regmap);
}
clk_lucid_evo_pll_configure(&video_cc_pll0, regmap, &video_cc_pll0_config);
clk_lucid_evo_pll_configure(&video_cc_pll1, regmap, &video_cc_pll1_config);
/*
* Keep clocks always enabled:
* video_cc_ahb_clk
* video_cc_sleep_clk
* video_cc_xo_clk
*/
regmap_update_bits(regmap, 0x80e4, BIT(0), BIT(0));
regmap_update_bits(regmap, 0x8130, BIT(0), BIT(0));
regmap_update_bits(regmap, 0x8114, BIT(0), BIT(0));
ret = qcom_cc_really_probe(pdev, &video_cc_sm8450_desc, regmap);
pm_runtime_put(&pdev->dev);
return ret;
}
static struct platform_driver video_cc_sm8450_driver = {
.probe = video_cc_sm8450_probe,
.driver = {
.name = "video_cc-sm8450",
.of_match_table = video_cc_sm8450_match_table,
},
};
static int __init video_cc_sm8450_init(void)
{
return platform_driver_register(&video_cc_sm8450_driver);
}
subsys_initcall(video_cc_sm8450_init);
static void __exit video_cc_sm8450_exit(void)
{
platform_driver_unregister(&video_cc_sm8450_driver);
}
module_exit(video_cc_sm8450_exit);
MODULE_DESCRIPTION("QTI VIDEOCC SM8450 Driver");
MODULE_LICENSE("GPL");