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clk: qcom: Add GPU clock controller driver for SM6350

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Add support for the GPU clock controller found on SM6350.

Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220222011534.3502-4-konrad.dybcio@somainline.org
This commit is contained in:
Konrad Dybcio 2022-02-22 02:15:31 +01:00 committed by Bjorn Andersson
parent 7b91b9d8cc
commit 013804a727
3 changed files with 530 additions and 0 deletions
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8
drivers/clk/qcom/Kconfig
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@ -660,6 +660,14 @@ config SM_GCC_8450
Say Y if you want to use peripheral devices such as UART,
SPI, I2C, USB, SD/UFS, PCIe etc.
config SM_GPUCC_6350
tristate "SM6350 Graphics Clock Controller"
select SM_GCC_6350
help
Support for the graphics clock controller on SM6350 devices.
Say Y if you want to support graphics controller devices and
functionality such as 3D graphics.
config SM_GPUCC_8150
tristate "SM8150 Graphics Clock Controller"
select SM_GCC_8150

1
drivers/clk/qcom/Makefile
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@ -95,6 +95,7 @@ obj-$(CONFIG_SM_GCC_8150) += gcc-sm8150.o
obj-$(CONFIG_SM_GCC_8250) += gcc-sm8250.o
obj-$(CONFIG_SM_GCC_8350) += gcc-sm8350.o
obj-$(CONFIG_SM_GCC_8450) += gcc-sm8450.o
obj-$(CONFIG_SM_GPUCC_6350) += gpucc-sm6350.o
obj-$(CONFIG_SM_GPUCC_8150) += gpucc-sm8150.o
obj-$(CONFIG_SM_GPUCC_8250) += gpucc-sm8250.o
obj-$(CONFIG_SM_VIDEOCC_8150) += videocc-sm8150.o

521
drivers/clk/qcom/gpucc-sm6350.c Normal file
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@ -0,0 +1,521 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2021, The Linux Foundation. All rights reserved.
* Copyright (c) 2021, Konrad Dybcio <konrad.dybcio@somainline.org>
*/
#include <linux/clk-provider.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <dt-bindings/clock/qcom,gpucc-sm6350.h>
#include "common.h"
#include "clk-alpha-pll.h"
#include "clk-branch.h"
#include "clk-rcg.h"
#include "clk-regmap.h"
#include "reset.h"
#include "gdsc.h"
#define CX_GMU_CBCR_SLEEP_MASK 0xF
#define CX_GMU_CBCR_SLEEP_SHIFT 4
#define CX_GMU_CBCR_WAKE_MASK 0xF
#define CX_GMU_CBCR_WAKE_SHIFT 8
enum {
P_BI_TCXO,
P_GPLL0_OUT_MAIN,
P_GPLL0_OUT_MAIN_DIV,
P_GPU_CC_PLL0_OUT_MAIN,
P_GPU_CC_PLL0_OUT_ODD,
P_GPU_CC_PLL1_OUT_EVEN,
P_GPU_CC_PLL1_OUT_MAIN,
P_GPU_CC_PLL1_OUT_ODD,
P_CRC_DIV,
};
static const struct pll_vco fabia_vco[] = {
{ 249600000, 2000000000, 0 },
};
/* 506MHz Configuration*/
static const struct alpha_pll_config gpu_cc_pll0_config = {
.l = 0x1A,
.alpha = 0x5AAA,
.config_ctl_val = 0x20485699,
.config_ctl_hi_val = 0x00002067,
.test_ctl_val = 0x40000000,
.test_ctl_hi_val = 0x00000002,
.user_ctl_val = 0x00000001,
.user_ctl_hi_val = 0x00004805,
};
static struct clk_alpha_pll gpu_cc_pll0 = {
.offset = 0x0,
.vco_table = fabia_vco,
.num_vco = ARRAY_SIZE(fabia_vco),
.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_FABIA],
.clkr = {
.hw.init = &(struct clk_init_data){
.name = "gpu_cc_pll0",
.parent_data = &(const struct clk_parent_data){
.fw_name = "bi_tcxo",
},
.num_parents = 1,
.ops = &clk_alpha_pll_fabia_ops,
},
},
};
static struct clk_fixed_factor crc_div = {
.mult = 1,
.div = 2,
.hw.init = &(struct clk_init_data){
.name = "crc_div",
.parent_hws = (const struct clk_hw*[]){
&gpu_cc_pll0.clkr.hw,
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_fixed_factor_ops,
},
};
/* 514MHz Configuration*/
static const struct alpha_pll_config gpu_cc_pll1_config = {
.l = 0x1A,
.alpha = 0xC555,
.config_ctl_val = 0x20485699,
.config_ctl_hi_val = 0x00002067,
.test_ctl_val = 0x40000000,
.test_ctl_hi_val = 0x00000002,
.user_ctl_val = 0x00000001,
.user_ctl_hi_val = 0x00004805,
};
static struct clk_alpha_pll gpu_cc_pll1 = {
.offset = 0x100,
.vco_table = fabia_vco,
.num_vco = ARRAY_SIZE(fabia_vco),
.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_FABIA],
.clkr = {
.hw.init = &(struct clk_init_data){
.name = "gpu_cc_pll1",
.parent_data = &(const struct clk_parent_data){
.fw_name = "bi_tcxo",
},
.num_parents = 1,
.ops = &clk_alpha_pll_fabia_ops,
},
},
};
static const struct parent_map gpu_cc_parent_map_0[] = {
{ P_BI_TCXO, 0 },
{ P_GPU_CC_PLL0_OUT_MAIN, 1 },
{ P_GPU_CC_PLL1_OUT_MAIN, 3 },
{ P_GPLL0_OUT_MAIN, 5 },
{ P_GPLL0_OUT_MAIN_DIV, 6 },
};
static const struct clk_parent_data gpu_cc_parent_data_0[] = {
{ .fw_name = "bi_tcxo" },
{ .hw = &gpu_cc_pll0.clkr.hw },
{ .hw = &gpu_cc_pll1.clkr.hw },
{ .fw_name = "gcc_gpu_gpll0_clk" },
{ .fw_name = "gcc_gpu_gpll0_div_clk" },
};
static const struct parent_map gpu_cc_parent_map_1[] = {
{ P_BI_TCXO, 0 },
{ P_CRC_DIV, 1 },
{ P_GPU_CC_PLL0_OUT_ODD, 2 },
{ P_GPU_CC_PLL1_OUT_EVEN, 3 },
{ P_GPU_CC_PLL1_OUT_ODD, 4 },
{ P_GPLL0_OUT_MAIN, 5 },
};
static const struct clk_parent_data gpu_cc_parent_data_1[] = {
{ .fw_name = "bi_tcxo" },
{ .hw = &crc_div.hw },
{ .hw = &gpu_cc_pll0.clkr.hw },
{ .hw = &gpu_cc_pll1.clkr.hw },
{ .hw = &gpu_cc_pll1.clkr.hw },
{ .fw_name = "gcc_gpu_gpll0_clk" },
};
static const struct freq_tbl ftbl_gpu_cc_gmu_clk_src[] = {
F(200000000, P_GPLL0_OUT_MAIN_DIV, 1.5, 0, 0),
{ }
};
static struct clk_rcg2 gpu_cc_gmu_clk_src = {
.cmd_rcgr = 0x1120,
.mnd_width = 0,
.hid_width = 5,
.parent_map = gpu_cc_parent_map_0,
.freq_tbl = ftbl_gpu_cc_gmu_clk_src,
.clkr.hw.init = &(struct clk_init_data){
.name = "gpu_cc_gmu_clk_src",
.parent_data = gpu_cc_parent_data_0,
.num_parents = ARRAY_SIZE(gpu_cc_parent_data_0),
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_rcg2_ops,
},
};
static const struct freq_tbl ftbl_gpu_cc_gx_gfx3d_clk_src[] = {
F(253000000, P_CRC_DIV, 1, 0, 0),
F(355000000, P_CRC_DIV, 1, 0, 0),
F(430000000, P_CRC_DIV, 1, 0, 0),
F(565000000, P_CRC_DIV, 1, 0, 0),
F(650000000, P_CRC_DIV, 1, 0, 0),
F(800000000, P_CRC_DIV, 1, 0, 0),
F(825000000, P_CRC_DIV, 1, 0, 0),
F(850000000, P_CRC_DIV, 1, 0, 0),
{ }
};
static struct clk_rcg2 gpu_cc_gx_gfx3d_clk_src = {
.cmd_rcgr = 0x101c,
.mnd_width = 0,
.hid_width = 5,
.parent_map = gpu_cc_parent_map_1,
.freq_tbl = ftbl_gpu_cc_gx_gfx3d_clk_src,
.clkr.hw.init = &(struct clk_init_data){
.name = "gpu_cc_gx_gfx3d_clk_src",
.parent_data = gpu_cc_parent_data_1,
.num_parents = ARRAY_SIZE(gpu_cc_parent_data_1),
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_rcg2_ops,
},
};
static struct clk_branch gpu_cc_acd_ahb_clk = {
.halt_reg = 0x1168,
.halt_check = BRANCH_HALT,
.clkr = {
.enable_reg = 0x1168,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "gpu_cc_acd_ahb_clk",
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch gpu_cc_acd_cxo_clk = {
.halt_reg = 0x1164,
.halt_check = BRANCH_HALT,
.clkr = {
.enable_reg = 0x1164,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "gpu_cc_acd_cxo_clk",
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch gpu_cc_ahb_clk = {
.halt_reg = 0x1078,
.halt_check = BRANCH_HALT_DELAY,
.clkr = {
.enable_reg = 0x1078,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "gpu_cc_ahb_clk",
.flags = CLK_IS_CRITICAL,
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch gpu_cc_crc_ahb_clk = {
.halt_reg = 0x107c,
.halt_check = BRANCH_HALT_DELAY,
.clkr = {
.enable_reg = 0x107c,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "gpu_cc_crc_ahb_clk",
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch gpu_cc_cx_gfx3d_clk = {
.halt_reg = 0x10a4,
.halt_check = BRANCH_HALT_DELAY,
.clkr = {
.enable_reg = 0x10a4,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "gpu_cc_cx_gfx3d_clk",
.parent_hws = (const struct clk_hw*[]){
&gpu_cc_gx_gfx3d_clk_src.clkr.hw,
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch gpu_cc_cx_gfx3d_slv_clk = {
.halt_reg = 0x10a8,
.halt_check = BRANCH_HALT_DELAY,
.clkr = {
.enable_reg = 0x10a8,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "gpu_cc_cx_gfx3d_slv_clk",
.parent_hws = (const struct clk_hw*[]){
&gpu_cc_gx_gfx3d_clk_src.clkr.hw,
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch gpu_cc_cx_gmu_clk = {
.halt_reg = 0x1098,
.halt_check = BRANCH_HALT,
.clkr = {
.enable_reg = 0x1098,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "gpu_cc_cx_gmu_clk",
.parent_hws = (const struct clk_hw*[]){
&gpu_cc_gmu_clk_src.clkr.hw,
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch gpu_cc_cx_snoc_dvm_clk = {
.halt_reg = 0x108c,
.halt_check = BRANCH_HALT_DELAY,
.clkr = {
.enable_reg = 0x108c,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "gpu_cc_cx_snoc_dvm_clk",
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch gpu_cc_cxo_aon_clk = {
.halt_reg = 0x1004,
.halt_check = BRANCH_HALT_DELAY,
.clkr = {
.enable_reg = 0x1004,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "gpu_cc_cxo_aon_clk",
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch gpu_cc_cxo_clk = {
.halt_reg = 0x109c,
.halt_check = BRANCH_HALT,
.clkr = {
.enable_reg = 0x109c,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "gpu_cc_cxo_clk",
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch gpu_cc_gx_cxo_clk = {
.halt_reg = 0x1060,
.halt_check = BRANCH_HALT,
.clkr = {
.enable_reg = 0x1060,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "gpu_cc_gx_cxo_clk",
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch gpu_cc_gx_gfx3d_clk = {
.halt_reg = 0x1054,
.halt_check = BRANCH_HALT_SKIP,
.clkr = {
.enable_reg = 0x1054,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "gpu_cc_gx_gfx3d_clk",
.parent_hws = (const struct clk_hw*[]){
&gpu_cc_gx_gfx3d_clk_src.clkr.hw,
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch gpu_cc_gx_gmu_clk = {
.halt_reg = 0x1064,
.halt_check = BRANCH_HALT,
.clkr = {
.enable_reg = 0x1064,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "gpu_cc_gx_gmu_clk",
.parent_hws = (const struct clk_hw*[]){
&gpu_cc_gmu_clk_src.clkr.hw,
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch gpu_cc_gx_vsense_clk = {
.halt_reg = 0x1058,
.halt_check = BRANCH_HALT_DELAY,
.clkr = {
.enable_reg = 0x1058,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "gpu_cc_gx_vsense_clk",
.ops = &clk_branch2_ops,
},
},
};
static struct gdsc gpu_cx_gdsc = {
.gdscr = 0x106c,
.gds_hw_ctrl = 0x1540,
.pd = {
.name = "gpu_cx_gdsc",
},
.pwrsts = PWRSTS_OFF_ON,
.flags = VOTABLE,
};
static struct gdsc gpu_gx_gdsc = {
.gdscr = 0x100c,
.clamp_io_ctrl = 0x1508,
.pd = {
.name = "gpu_gx_gdsc",
.power_on = gdsc_gx_do_nothing_enable,
},
.pwrsts = PWRSTS_OFF_ON,
.flags = CLAMP_IO | POLL_CFG_GDSCR,
};
static struct clk_hw *gpu_cc_sm6350_hws[] = {
[GPU_CC_CRC_DIV] = &crc_div.hw,
};
static struct clk_regmap *gpu_cc_sm6350_clocks[] = {
[GPU_CC_ACD_AHB_CLK] = &gpu_cc_acd_ahb_clk.clkr,
[GPU_CC_ACD_CXO_CLK] = &gpu_cc_acd_cxo_clk.clkr,
[GPU_CC_AHB_CLK] = &gpu_cc_ahb_clk.clkr,
[GPU_CC_CRC_AHB_CLK] = &gpu_cc_crc_ahb_clk.clkr,
[GPU_CC_CX_GFX3D_CLK] = &gpu_cc_cx_gfx3d_clk.clkr,
[GPU_CC_CX_GFX3D_SLV_CLK] = &gpu_cc_cx_gfx3d_slv_clk.clkr,
[GPU_CC_CX_GMU_CLK] = &gpu_cc_cx_gmu_clk.clkr,
[GPU_CC_CX_SNOC_DVM_CLK] = &gpu_cc_cx_snoc_dvm_clk.clkr,
[GPU_CC_CXO_AON_CLK] = &gpu_cc_cxo_aon_clk.clkr,
[GPU_CC_CXO_CLK] = &gpu_cc_cxo_clk.clkr,
[GPU_CC_GMU_CLK_SRC] = &gpu_cc_gmu_clk_src.clkr,
[GPU_CC_GX_CXO_CLK] = &gpu_cc_gx_cxo_clk.clkr,
[GPU_CC_GX_GFX3D_CLK] = &gpu_cc_gx_gfx3d_clk.clkr,
[GPU_CC_GX_GFX3D_CLK_SRC] = &gpu_cc_gx_gfx3d_clk_src.clkr,
[GPU_CC_GX_GMU_CLK] = &gpu_cc_gx_gmu_clk.clkr,
[GPU_CC_GX_VSENSE_CLK] = &gpu_cc_gx_vsense_clk.clkr,
[GPU_CC_PLL0] = &gpu_cc_pll0.clkr,
[GPU_CC_PLL1] = &gpu_cc_pll1.clkr,
};
static struct gdsc *gpu_cc_sm6350_gdscs[] = {
[GPU_CX_GDSC] = &gpu_cx_gdsc,
[GPU_GX_GDSC] = &gpu_gx_gdsc,
};
static const struct regmap_config gpu_cc_sm6350_regmap_config = {
.reg_bits = 32,
.reg_stride = 4,
.val_bits = 32,
.max_register = 0x8008,
.fast_io = true,
};
static const struct qcom_cc_desc gpu_cc_sm6350_desc = {
.config = &gpu_cc_sm6350_regmap_config,
.clk_hws = gpu_cc_sm6350_hws,
.num_clk_hws = ARRAY_SIZE(gpu_cc_sm6350_hws),
.clks = gpu_cc_sm6350_clocks,
.num_clks = ARRAY_SIZE(gpu_cc_sm6350_clocks),
.gdscs = gpu_cc_sm6350_gdscs,
.num_gdscs = ARRAY_SIZE(gpu_cc_sm6350_gdscs),
};
static const struct of_device_id gpu_cc_sm6350_match_table[] = {
{ .compatible = "qcom,sm6350-gpucc" },
{ }
};
MODULE_DEVICE_TABLE(of, gpu_cc_sm6350_match_table);
static int gpu_cc_sm6350_probe(struct platform_device *pdev)
{
struct regmap *regmap;
unsigned int value, mask;
regmap = qcom_cc_map(pdev, &gpu_cc_sm6350_desc);
if (IS_ERR(regmap))
return PTR_ERR(regmap);
clk_fabia_pll_configure(&gpu_cc_pll0, regmap, &gpu_cc_pll0_config);
clk_fabia_pll_configure(&gpu_cc_pll1, regmap, &gpu_cc_pll1_config);
/* Configure gpu_cc_cx_gmu_clk with recommended wakeup/sleep settings */
mask = CX_GMU_CBCR_WAKE_MASK << CX_GMU_CBCR_WAKE_SHIFT;
mask |= CX_GMU_CBCR_SLEEP_MASK << CX_GMU_CBCR_SLEEP_SHIFT;
value = 0xF << CX_GMU_CBCR_WAKE_SHIFT | 0xF << CX_GMU_CBCR_SLEEP_SHIFT;
regmap_update_bits(regmap, 0x1098, mask, value);
return qcom_cc_really_probe(pdev, &gpu_cc_sm6350_desc, regmap);
}
static struct platform_driver gpu_cc_sm6350_driver = {
.probe = gpu_cc_sm6350_probe,
.driver = {
.name = "sm6350-gpucc",
.of_match_table = gpu_cc_sm6350_match_table,
},
};
static int __init gpu_cc_sm6350_init(void)
{
return platform_driver_register(&gpu_cc_sm6350_driver);
}
core_initcall(gpu_cc_sm6350_init);
static void __exit gpu_cc_sm6350_exit(void)
{
platform_driver_unregister(&gpu_cc_sm6350_driver);
}
module_exit(gpu_cc_sm6350_exit);
MODULE_DESCRIPTION("QTI GPU_CC LAGOON Driver");
MODULE_LICENSE("GPL v2");