diff options
author | Neil Armstrong <neil.armstrong@linaro.org> | 2023-11-06 11:26:01 +0300 |
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committer | Bjorn Andersson <andersson@kernel.org> | 2023-12-07 19:11:29 +0300 |
commit | e3388328e47c45cc91fe74b334694fa455c1c935 (patch) | |
tree | 3b7e1507aabd784a16b0985b2f4357256dcb570b /drivers/clk/qcom/tcsrcc-sm8650.c | |
parent | aa381a2bdf1dfc36468f84c8d0ceba63be25b3b3 (diff) | |
download | linux-e3388328e47c45cc91fe74b334694fa455c1c935.tar.xz |
clk: qcom: add the SM8650 TCSR Clock Controller driver
Add TCSR Clock Controller support for SM8650 platform.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20231106-topic-sm8650-upstream-clocks-v3-8-761a6fadb4c0@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Diffstat (limited to 'drivers/clk/qcom/tcsrcc-sm8650.c')
-rw-r--r-- | drivers/clk/qcom/tcsrcc-sm8650.c | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/drivers/clk/qcom/tcsrcc-sm8650.c b/drivers/clk/qcom/tcsrcc-sm8650.c new file mode 100644 index 000000000000..11c7d6df48c7 --- /dev/null +++ b/drivers/clk/qcom/tcsrcc-sm8650.c @@ -0,0 +1,182 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2021, The Linux Foundation. All rights reserved. + * Copyright (c) 2022, Qualcomm Innovation Center, Inc. All rights reserved. + * Copyright (c) 2023, Linaro Limited + */ + +#include <linux/clk-provider.h> +#include <linux/mod_devicetable.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/regmap.h> + +#include <dt-bindings/clock/qcom,sm8650-tcsr.h> + +#include "clk-branch.h" +#include "clk-regmap.h" +#include "common.h" +#include "reset.h" + +enum { + DT_BI_TCXO_PAD, +}; + +static struct clk_branch tcsr_pcie_0_clkref_en = { + .halt_reg = 0x31100, + .halt_check = BRANCH_HALT_DELAY, + .clkr = { + .enable_reg = 0x31100, + .enable_mask = BIT(0), + .hw.init = &(struct clk_init_data){ + .name = "tcsr_pcie_0_clkref_en", + .parent_data = &(const struct clk_parent_data){ + .index = DT_BI_TCXO_PAD, + }, + .num_parents = 1, + .ops = &clk_branch2_ops, + }, + }, +}; + +static struct clk_branch tcsr_pcie_1_clkref_en = { + .halt_reg = 0x31114, + .halt_check = BRANCH_HALT_DELAY, + .clkr = { + .enable_reg = 0x31114, + .enable_mask = BIT(0), + .hw.init = &(struct clk_init_data){ + .name = "tcsr_pcie_1_clkref_en", + .parent_data = &(const struct clk_parent_data){ + .index = DT_BI_TCXO_PAD, + }, + .num_parents = 1, + .ops = &clk_branch2_ops, + }, + }, +}; + +static struct clk_branch tcsr_ufs_clkref_en = { + .halt_reg = 0x31110, + .halt_check = BRANCH_HALT_DELAY, + .clkr = { + .enable_reg = 0x31110, + .enable_mask = BIT(0), + .hw.init = &(struct clk_init_data){ + .name = "tcsr_ufs_clkref_en", + .parent_data = &(const struct clk_parent_data){ + .index = DT_BI_TCXO_PAD, + }, + .num_parents = 1, + .ops = &clk_branch2_ops, + }, + }, +}; + +static struct clk_branch tcsr_ufs_pad_clkref_en = { + .halt_reg = 0x31104, + .halt_check = BRANCH_HALT_DELAY, + .clkr = { + .enable_reg = 0x31104, + .enable_mask = BIT(0), + .hw.init = &(struct clk_init_data){ + .name = "tcsr_ufs_pad_clkref_en", + .parent_data = &(const struct clk_parent_data){ + .index = DT_BI_TCXO_PAD, + }, + .num_parents = 1, + .ops = &clk_branch2_ops, + }, + }, +}; + +static struct clk_branch tcsr_usb2_clkref_en = { + .halt_reg = 0x31118, + .halt_check = BRANCH_HALT_DELAY, + .clkr = { + .enable_reg = 0x31118, + .enable_mask = BIT(0), + .hw.init = &(struct clk_init_data){ + .name = "tcsr_usb2_clkref_en", + .parent_data = &(const struct clk_parent_data){ + .index = DT_BI_TCXO_PAD, + }, + .num_parents = 1, + .ops = &clk_branch2_ops, + }, + }, +}; + +static struct clk_branch tcsr_usb3_clkref_en = { + .halt_reg = 0x31108, + .halt_check = BRANCH_HALT_DELAY, + .clkr = { + .enable_reg = 0x31108, + .enable_mask = BIT(0), + .hw.init = &(struct clk_init_data){ + .name = "tcsr_usb3_clkref_en", + .parent_data = &(const struct clk_parent_data){ + .index = DT_BI_TCXO_PAD, + }, + .num_parents = 1, + .ops = &clk_branch2_ops, + }, + }, +}; + +static struct clk_regmap *tcsr_cc_sm8650_clocks[] = { + [TCSR_PCIE_0_CLKREF_EN] = &tcsr_pcie_0_clkref_en.clkr, + [TCSR_PCIE_1_CLKREF_EN] = &tcsr_pcie_1_clkref_en.clkr, + [TCSR_UFS_CLKREF_EN] = &tcsr_ufs_clkref_en.clkr, + [TCSR_UFS_PAD_CLKREF_EN] = &tcsr_ufs_pad_clkref_en.clkr, + [TCSR_USB2_CLKREF_EN] = &tcsr_usb2_clkref_en.clkr, + [TCSR_USB3_CLKREF_EN] = &tcsr_usb3_clkref_en.clkr, +}; + +static const struct regmap_config tcsr_cc_sm8650_regmap_config = { + .reg_bits = 32, + .reg_stride = 4, + .val_bits = 32, + .max_register = 0x3b000, + .fast_io = true, +}; + +static const struct qcom_cc_desc tcsr_cc_sm8650_desc = { + .config = &tcsr_cc_sm8650_regmap_config, + .clks = tcsr_cc_sm8650_clocks, + .num_clks = ARRAY_SIZE(tcsr_cc_sm8650_clocks), +}; + +static const struct of_device_id tcsr_cc_sm8650_match_table[] = { + { .compatible = "qcom,sm8650-tcsr" }, + { } +}; +MODULE_DEVICE_TABLE(of, tcsr_cc_sm8650_match_table); + +static int tcsr_cc_sm8650_probe(struct platform_device *pdev) +{ + return qcom_cc_probe(pdev, &tcsr_cc_sm8650_desc); +} + +static struct platform_driver tcsr_cc_sm8650_driver = { + .probe = tcsr_cc_sm8650_probe, + .driver = { + .name = "tcsr_cc-sm8650", + .of_match_table = tcsr_cc_sm8650_match_table, + }, +}; + +static int __init tcsr_cc_sm8650_init(void) +{ + return platform_driver_register(&tcsr_cc_sm8650_driver); +} +subsys_initcall(tcsr_cc_sm8650_init); + +static void __exit tcsr_cc_sm8650_exit(void) +{ + platform_driver_unregister(&tcsr_cc_sm8650_driver); +} +module_exit(tcsr_cc_sm8650_exit); + +MODULE_DESCRIPTION("QTI TCSRCC SM8650 Driver"); +MODULE_LICENSE("GPL"); |