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clk: qcom: Add TCSR clock driver for Nord SoC

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Add a clock driver for the TCSR clock controller found on Nord SoC,
which provides refclks for PCIE, USB, SGMII, UFS subsystems.

[Shawn:
- Use compatible qcom,nord-tcsrcc
- Drop include of <linux/of.h> as the driver doesn't use any OF APIs]

Signed-off-by: Taniya Das <taniya.das@oss.qualcomm.com>
Co-developed-by: Shawn Guo <shengchao.guo@oss.qualcomm.com>
Signed-off-by: Shawn Guo <shengchao.guo@oss.qualcomm.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260403-nord-clks-v1-4-018af14979fd@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
This commit is contained in:
Taniya Das 2026-04-03 16:10:52 +02:00 committed by Bjorn Andersson
parent 06498d59bb
commit 9d13c7bbee
3 changed files with 345 additions and 0 deletions
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7
drivers/clk/qcom/Kconfig
View File

@ -674,6 +674,13 @@ config QCS_GCC_404
Say Y if you want to use multimedia devices or peripheral
devices such as UART, SPI, I2C, USB, SD/eMMC, PCIe etc.
config CLK_NORD_TCSRCC
tristate "Nord TCSR Clock Controller"
depends on ARM64 || COMPILE_TEST
help
Support for the TCSR clock controller on Nord devices.
Say Y if you want to use peripheral devices such as PCIe, USB, UFS etc.
config SA_CAMCC_8775P
tristate "SA8775P Camera Clock Controller"
depends on ARM64 || COMPILE_TEST

1
drivers/clk/qcom/Makefile
View File

@ -35,6 +35,7 @@ obj-$(CONFIG_CLK_KAANAPALI_GCC) += gcc-kaanapali.o
obj-$(CONFIG_CLK_KAANAPALI_GPUCC) += gpucc-kaanapali.o gxclkctl-kaanapali.o
obj-$(CONFIG_CLK_KAANAPALI_TCSRCC) += tcsrcc-kaanapali.o
obj-$(CONFIG_CLK_KAANAPALI_VIDEOCC) += videocc-kaanapali.o
obj-$(CONFIG_CLK_NORD_TCSRCC) += tcsrcc-nord.o
obj-$(CONFIG_CLK_X1E80100_CAMCC) += camcc-x1e80100.o
obj-$(CONFIG_CLK_X1E80100_DISPCC) += dispcc-x1e80100.o
obj-$(CONFIG_CLK_X1E80100_GCC) += gcc-x1e80100.o

337
drivers/clk/qcom/tcsrcc-nord.c Normal file
View File

@ -0,0 +1,337 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
*/
#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,nord-tcsrcc.h>
#include "clk-alpha-pll.h"
#include "clk-branch.h"
#include "clk-pll.h"
#include "clk-rcg.h"
#include "clk-regmap.h"
#include "clk-regmap-divider.h"
#include "clk-regmap-mux.h"
#include "common.h"
#include "reset.h"
enum {
DT_BI_TCXO_PAD,
};
static struct clk_branch tcsr_dp_rx_0_clkref_en = {
.halt_reg = 0xa008,
.halt_check = BRANCH_HALT_DELAY,
.clkr = {
.enable_reg = 0xa008,
.enable_mask = BIT(0),
.hw.init = &(const struct clk_init_data) {
.name = "tcsr_dp_rx_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_dp_rx_1_clkref_en = {
.halt_reg = 0xb008,
.halt_check = BRANCH_HALT_DELAY,
.clkr = {
.enable_reg = 0xb008,
.enable_mask = BIT(0),
.hw.init = &(const struct clk_init_data) {
.name = "tcsr_dp_rx_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_dp_tx_0_clkref_en = {
.halt_reg = 0xc008,
.halt_check = BRANCH_HALT_DELAY,
.clkr = {
.enable_reg = 0xc008,
.enable_mask = BIT(0),
.hw.init = &(const struct clk_init_data) {
.name = "tcsr_dp_tx_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_dp_tx_1_clkref_en = {
.halt_reg = 0xd008,
.halt_check = BRANCH_HALT_DELAY,
.clkr = {
.enable_reg = 0xd008,
.enable_mask = BIT(0),
.hw.init = &(const struct clk_init_data) {
.name = "tcsr_dp_tx_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_dp_tx_2_clkref_en = {
.halt_reg = 0xe008,
.halt_check = BRANCH_HALT_DELAY,
.clkr = {
.enable_reg = 0xe008,
.enable_mask = BIT(0),
.hw.init = &(const struct clk_init_data) {
.name = "tcsr_dp_tx_2_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_dp_tx_3_clkref_en = {
.halt_reg = 0xf008,
.halt_check = BRANCH_HALT_DELAY,
.clkr = {
.enable_reg = 0xf008,
.enable_mask = BIT(0),
.hw.init = &(const struct clk_init_data) {
.name = "tcsr_dp_tx_3_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_clkref_en = {
.halt_reg = 0x8,
.halt_check = BRANCH_HALT_DELAY,
.clkr = {
.enable_reg = 0x8,
.enable_mask = BIT(0),
.hw.init = &(const struct clk_init_data) {
.name = "tcsr_pcie_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 = 0x3008,
.halt_check = BRANCH_HALT_DELAY,
.clkr = {
.enable_reg = 0x3008,
.enable_mask = BIT(0),
.hw.init = &(const 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_usb2_0_clkref_en = {
.halt_reg = 0x4008,
.halt_check = BRANCH_HALT_DELAY,
.clkr = {
.enable_reg = 0x4008,
.enable_mask = BIT(0),
.hw.init = &(const struct clk_init_data) {
.name = "tcsr_usb2_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_usb2_1_clkref_en = {
.halt_reg = 0x5008,
.halt_check = BRANCH_HALT_DELAY,
.clkr = {
.enable_reg = 0x5008,
.enable_mask = BIT(0),
.hw.init = &(const struct clk_init_data) {
.name = "tcsr_usb2_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_usb2_2_clkref_en = {
.halt_reg = 0x6008,
.halt_check = BRANCH_HALT_DELAY,
.clkr = {
.enable_reg = 0x6008,
.enable_mask = BIT(0),
.hw.init = &(const struct clk_init_data) {
.name = "tcsr_usb2_2_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_0_clkref_en = {
.halt_reg = 0x8008,
.halt_check = BRANCH_HALT_DELAY,
.clkr = {
.enable_reg = 0x8008,
.enable_mask = BIT(0),
.hw.init = &(const struct clk_init_data) {
.name = "tcsr_usb3_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_usb3_1_clkref_en = {
.halt_reg = 0x7008,
.halt_check = BRANCH_HALT_DELAY,
.clkr = {
.enable_reg = 0x7008,
.enable_mask = BIT(0),
.hw.init = &(const struct clk_init_data) {
.name = "tcsr_usb3_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_ux_sgmii_0_clkref_en = {
.halt_reg = 0x1008,
.halt_check = BRANCH_HALT_DELAY,
.clkr = {
.enable_reg = 0x1008,
.enable_mask = BIT(0),
.hw.init = &(const struct clk_init_data) {
.name = "tcsr_ux_sgmii_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_ux_sgmii_1_clkref_en = {
.halt_reg = 0x2008,
.halt_check = BRANCH_HALT_DELAY,
.clkr = {
.enable_reg = 0x2008,
.enable_mask = BIT(0),
.hw.init = &(const struct clk_init_data) {
.name = "tcsr_ux_sgmii_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_regmap *tcsr_cc_nord_clocks[] = {
[TCSR_DP_RX_0_CLKREF_EN] = &tcsr_dp_rx_0_clkref_en.clkr,
[TCSR_DP_RX_1_CLKREF_EN] = &tcsr_dp_rx_1_clkref_en.clkr,
[TCSR_DP_TX_0_CLKREF_EN] = &tcsr_dp_tx_0_clkref_en.clkr,
[TCSR_DP_TX_1_CLKREF_EN] = &tcsr_dp_tx_1_clkref_en.clkr,
[TCSR_DP_TX_2_CLKREF_EN] = &tcsr_dp_tx_2_clkref_en.clkr,
[TCSR_DP_TX_3_CLKREF_EN] = &tcsr_dp_tx_3_clkref_en.clkr,
[TCSR_PCIE_CLKREF_EN] = &tcsr_pcie_clkref_en.clkr,
[TCSR_UFS_CLKREF_EN] = &tcsr_ufs_clkref_en.clkr,
[TCSR_USB2_0_CLKREF_EN] = &tcsr_usb2_0_clkref_en.clkr,
[TCSR_USB2_1_CLKREF_EN] = &tcsr_usb2_1_clkref_en.clkr,
[TCSR_USB2_2_CLKREF_EN] = &tcsr_usb2_2_clkref_en.clkr,
[TCSR_USB3_0_CLKREF_EN] = &tcsr_usb3_0_clkref_en.clkr,
[TCSR_USB3_1_CLKREF_EN] = &tcsr_usb3_1_clkref_en.clkr,
[TCSR_UX_SGMII_0_CLKREF_EN] = &tcsr_ux_sgmii_0_clkref_en.clkr,
[TCSR_UX_SGMII_1_CLKREF_EN] = &tcsr_ux_sgmii_1_clkref_en.clkr,
};
static const struct regmap_config tcsr_cc_nord_regmap_config = {
.reg_bits = 32,
.reg_stride = 4,
.val_bits = 32,
.max_register = 0xf008,
.fast_io = true,
};
static const struct qcom_cc_desc tcsr_cc_nord_desc = {
.config = &tcsr_cc_nord_regmap_config,
.clks = tcsr_cc_nord_clocks,
.num_clks = ARRAY_SIZE(tcsr_cc_nord_clocks),
};
static const struct of_device_id tcsr_cc_nord_match_table[] = {
{ .compatible = "qcom,nord-tcsrcc" },
{ }
};
MODULE_DEVICE_TABLE(of, tcsr_cc_nord_match_table);
static int tcsr_cc_nord_probe(struct platform_device *pdev)
{
return qcom_cc_probe(pdev, &tcsr_cc_nord_desc);
}
static struct platform_driver tcsr_cc_nord_driver = {
.probe = tcsr_cc_nord_probe,
.driver = {
.name = "tcsrcc-nord",
.of_match_table = tcsr_cc_nord_match_table,
},
};
module_platform_driver(tcsr_cc_nord_driver);
MODULE_DESCRIPTION("QTI TCSRCC NORD Driver");
MODULE_LICENSE("GPL");