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clk: qcom: Add video clock controller driver for SC7280

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Add support for the video clock controller found on SC7280
based devices. This would allow video drivers to probe and
control their clocks.

Signed-off-by: Taniya Das <tdas@codeaurora.org>
Link: https://lore.kernel.org/r/1626189143-12957-8-git-send-email-tdas@codeaurora.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This commit is contained in:
Taniya Das 2021-07-13 20:42:23 +05:30 committed by Stephen Boyd
parent f1f5a30385
commit fae7617bb1
3 changed files with 334 additions and 0 deletions
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8
drivers/clk/qcom/Kconfig
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@ -410,6 +410,14 @@ config SC_VIDEOCC_7180
Say Y if you want to support video devices and functionality such as
video encode and decode.
config SC_VIDEOCC_7280
tristate "SC7280 Video Clock Controller"
select SC_GCC_7280
help
Support for the video clock controller on SC7280 devices.
Say Y if you want to support video devices and functionality such as
video encode and decode.
config SDM_CAMCC_845
tristate "SDM845 Camera Clock Controller"
select SDM_GCC_845

1
drivers/clk/qcom/Makefile
View File

@ -66,6 +66,7 @@ obj-$(CONFIG_SC_GPUCC_7280) += gpucc-sc7280.o
obj-$(CONFIG_SC_LPASS_CORECC_7180) += lpasscorecc-sc7180.o
obj-$(CONFIG_SC_MSS_7180) += mss-sc7180.o
obj-$(CONFIG_SC_VIDEOCC_7180) += videocc-sc7180.o
obj-$(CONFIG_SC_VIDEOCC_7280) += videocc-sc7280.o
obj-$(CONFIG_SDM_CAMCC_845) += camcc-sdm845.o
obj-$(CONFIG_SDM_DISPCC_845) += dispcc-sdm845.o
obj-$(CONFIG_SDM_GCC_660) += gcc-sdm660.o

325
drivers/clk/qcom/videocc-sc7280.c Normal file
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@ -0,0 +1,325 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2021, The Linux Foundation. All rights reserved.
*/
#include <linux/clk-provider.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <dt-bindings/clock/qcom,videocc-sc7280.h>
#include "clk-alpha-pll.h"
#include "clk-branch.h"
#include "clk-rcg.h"
#include "common.h"
#include "reset.h"
#include "gdsc.h"
enum {
P_BI_TCXO,
P_SLEEP_CLK,
P_VIDEO_PLL0_OUT_EVEN,
};
static const struct pll_vco lucid_vco[] = {
{ 249600000, 2000000000, 0 },
};
/* 400MHz Configuration */
static const struct alpha_pll_config video_pll0_config = {
.l = 0x14,
.alpha = 0xD555,
.config_ctl_val = 0x20485699,
.config_ctl_hi_val = 0x00002261,
.config_ctl_hi1_val = 0x329A299C,
.user_ctl_val = 0x00000001,
.user_ctl_hi_val = 0x00000805,
.user_ctl_hi1_val = 0x00000000,
};
static struct clk_alpha_pll video_pll0 = {
.offset = 0x0,
.vco_table = lucid_vco,
.num_vco = ARRAY_SIZE(lucid_vco),
.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_LUCID],
.clkr = {
.hw.init = &(struct clk_init_data){
.name = "video_pll0",
.parent_data = &(const struct clk_parent_data){
.fw_name = "bi_tcxo",
},
.num_parents = 1,
.ops = &clk_alpha_pll_lucid_ops,
},
},
};
static const struct parent_map video_cc_parent_map_0[] = {
{ P_BI_TCXO, 0 },
{ P_VIDEO_PLL0_OUT_EVEN, 3 },
};
static const struct clk_parent_data video_cc_parent_data_0[] = {
{ .fw_name = "bi_tcxo" },
{ .hw = &video_pll0.clkr.hw },
};
static const struct parent_map video_cc_parent_map_1[] = {
{ P_SLEEP_CLK, 0 },
};
static const struct clk_parent_data video_cc_parent_data_1[] = {
{ .fw_name = "sleep_clk" },
};
static const struct freq_tbl ftbl_video_cc_iris_clk_src[] = {
F(133333333, P_VIDEO_PLL0_OUT_EVEN, 3, 0, 0),
F(240000000, P_VIDEO_PLL0_OUT_EVEN, 2, 0, 0),
F(335000000, P_VIDEO_PLL0_OUT_EVEN, 2, 0, 0),
F(424000000, P_VIDEO_PLL0_OUT_EVEN, 2, 0, 0),
F(460000000, P_VIDEO_PLL0_OUT_EVEN, 2, 0, 0),
{ }
};
static struct clk_rcg2 video_cc_iris_clk_src = {
.cmd_rcgr = 0x1000,
.mnd_width = 0,
.hid_width = 5,
.parent_map = video_cc_parent_map_0,
.freq_tbl = ftbl_video_cc_iris_clk_src,
.clkr.hw.init = &(struct clk_init_data){
.name = "video_cc_iris_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_sleep_clk_src[] = {
F(32000, P_SLEEP_CLK, 1, 0, 0),
{ }
};
static struct clk_rcg2 video_cc_sleep_clk_src = {
.cmd_rcgr = 0x701c,
.mnd_width = 0,
.hid_width = 5,
.parent_map = video_cc_parent_map_1,
.freq_tbl = ftbl_video_cc_sleep_clk_src,
.clkr.hw.init = &(struct clk_init_data){
.name = "video_cc_sleep_clk_src",
.parent_data = video_cc_parent_data_1,
.num_parents = ARRAY_SIZE(video_cc_parent_data_1),
.ops = &clk_rcg2_ops,
},
};
static struct clk_branch video_cc_iris_ahb_clk = {
.halt_reg = 0x5004,
.halt_check = BRANCH_HALT_VOTED,
.clkr = {
.enable_reg = 0x5004,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "video_cc_iris_ahb_clk",
.parent_hws = (const struct clk_hw*[]){
&video_cc_iris_clk_src.clkr.hw,
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch video_cc_mvs0_axi_clk = {
.halt_reg = 0x800c,
.halt_check = BRANCH_HALT,
.clkr = {
.enable_reg = 0x800c,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "video_cc_mvs0_axi_clk",
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch video_cc_mvs0_core_clk = {
.halt_reg = 0x3010,
.halt_check = BRANCH_HALT_VOTED,
.hwcg_reg = 0x3010,
.hwcg_bit = 1,
.clkr = {
.enable_reg = 0x3010,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "video_cc_mvs0_core_clk",
.parent_hws = (const struct clk_hw*[]){
&video_cc_iris_clk_src.clkr.hw,
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch video_cc_mvsc_core_clk = {
.halt_reg = 0x2014,
.halt_check = BRANCH_HALT,
.clkr = {
.enable_reg = 0x2014,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "video_cc_mvsc_core_clk",
.parent_hws = (const struct clk_hw*[]){
&video_cc_iris_clk_src.clkr.hw,
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch video_cc_mvsc_ctl_axi_clk = {
.halt_reg = 0x8004,
.halt_check = BRANCH_HALT,
.clkr = {
.enable_reg = 0x8004,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "video_cc_mvsc_ctl_axi_clk",
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch video_cc_sleep_clk = {
.halt_reg = 0x7034,
.halt_check = BRANCH_HALT,
.clkr = {
.enable_reg = 0x7034,
.enable_mask = BIT(0),
.hw.init = &(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 clk_branch video_cc_venus_ahb_clk = {
.halt_reg = 0x801c,
.halt_check = BRANCH_HALT,
.clkr = {
.enable_reg = 0x801c,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "video_cc_venus_ahb_clk",
.ops = &clk_branch2_ops,
},
},
};
static struct gdsc mvs0_gdsc = {
.gdscr = 0x3004,
.pd = {
.name = "mvs0_gdsc",
},
.pwrsts = PWRSTS_OFF_ON,
.flags = HW_CTRL | RETAIN_FF_ENABLE,
};
static struct gdsc mvsc_gdsc = {
.gdscr = 0x2004,
.pd = {
.name = "mvsc_gdsc",
},
.flags = RETAIN_FF_ENABLE,
.pwrsts = PWRSTS_OFF_ON,
};
static struct clk_regmap *video_cc_sc7280_clocks[] = {
[VIDEO_CC_IRIS_AHB_CLK] = &video_cc_iris_ahb_clk.clkr,
[VIDEO_CC_IRIS_CLK_SRC] = &video_cc_iris_clk_src.clkr,
[VIDEO_CC_MVS0_AXI_CLK] = &video_cc_mvs0_axi_clk.clkr,
[VIDEO_CC_MVS0_CORE_CLK] = &video_cc_mvs0_core_clk.clkr,
[VIDEO_CC_MVSC_CORE_CLK] = &video_cc_mvsc_core_clk.clkr,
[VIDEO_CC_MVSC_CTL_AXI_CLK] = &video_cc_mvsc_ctl_axi_clk.clkr,
[VIDEO_CC_SLEEP_CLK] = &video_cc_sleep_clk.clkr,
[VIDEO_CC_SLEEP_CLK_SRC] = &video_cc_sleep_clk_src.clkr,
[VIDEO_CC_VENUS_AHB_CLK] = &video_cc_venus_ahb_clk.clkr,
[VIDEO_PLL0] = &video_pll0.clkr,
};
static struct gdsc *video_cc_sc7280_gdscs[] = {
[MVS0_GDSC] = &mvs0_gdsc,
[MVSC_GDSC] = &mvsc_gdsc,
};
static const struct regmap_config video_cc_sc7280_regmap_config = {
.reg_bits = 32,
.reg_stride = 4,
.val_bits = 32,
.max_register = 0xb000,
.fast_io = true,
};
static const struct qcom_cc_desc video_cc_sc7280_desc = {
.config = &video_cc_sc7280_regmap_config,
.clks = video_cc_sc7280_clocks,
.num_clks = ARRAY_SIZE(video_cc_sc7280_clocks),
.gdscs = video_cc_sc7280_gdscs,
.num_gdscs = ARRAY_SIZE(video_cc_sc7280_gdscs),
};
static const struct of_device_id video_cc_sc7280_match_table[] = {
{ .compatible = "qcom,sc7280-videocc" },
{ }
};
MODULE_DEVICE_TABLE(of, video_cc_sc7280_match_table);
static int video_cc_sc7280_probe(struct platform_device *pdev)
{
struct regmap *regmap;
regmap = qcom_cc_map(pdev, &video_cc_sc7280_desc);
if (IS_ERR(regmap))
return PTR_ERR(regmap);
clk_lucid_pll_configure(&video_pll0, regmap, &video_pll0_config);
return qcom_cc_really_probe(pdev, &video_cc_sc7280_desc, regmap);
}
static struct platform_driver video_cc_sc7280_driver = {
.probe = video_cc_sc7280_probe,
.driver = {
.name = "video_cc-sc7280",
.of_match_table = video_cc_sc7280_match_table,
},
};
static int __init video_cc_sc7280_init(void)
{
return platform_driver_register(&video_cc_sc7280_driver);
}
subsys_initcall(video_cc_sc7280_init);
static void __exit video_cc_sc7280_exit(void)
{
platform_driver_unregister(&video_cc_sc7280_driver);
}
module_exit(video_cc_sc7280_exit);
MODULE_DESCRIPTION("QTI VIDEO_CC sc7280 Driver");
MODULE_LICENSE("GPL v2");