From: Taniya Das Date: Tue, 9 Dec 2025 08:49:26 +0000 (+0530) Subject: clk: qcom: Add TCSR clock driver for Kaanapali X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e5682c953f5a9fbaad060ea000beff80f11c4048;p=thirdparty%2Flinux.git clk: qcom: Add TCSR clock driver for Kaanapali Add the TCSR clock controller that provides the refclks on Kaanapali platform for PCIe, USB and UFS subsystems. Reviewed-by: Dmitry Baryshkov Reviewed-by: Konrad Dybcio Reviewed-by: Abel Vesa Signed-off-by: Taniya Das Link: https://lore.kernel.org/r/20251209-gcc_kaanapali-v3-v5-3-3af118262289@oss.qualcomm.com Signed-off-by: Bjorn Andersson --- diff --git a/drivers/clk/qcom/Kconfig b/drivers/clk/qcom/Kconfig index a284ba040b78..efaf32bb517e 100644 --- a/drivers/clk/qcom/Kconfig +++ b/drivers/clk/qcom/Kconfig @@ -46,6 +46,14 @@ config CLK_GLYMUR_TCSRCC Support for the TCSR clock controller on GLYMUR devices. Say Y if you want to use peripheral devices such as USB/PCIe/EDP. +config CLK_KAANAPALI_TCSRCC + tristate "Kaanapali TCSR Clock Controller" + depends on ARM64 || COMPILE_TEST + select QCOM_GDSC + help + Support for the TCSR clock controller on Kaanapali devices. + Say Y if you want to use peripheral devices such as PCIe, USB, UFS. + config CLK_X1E80100_CAMCC tristate "X1E80100 Camera Clock Controller" depends on ARM64 || COMPILE_TEST diff --git a/drivers/clk/qcom/Makefile b/drivers/clk/qcom/Makefile index 0ac8a9055a43..6e45410d572b 100644 --- a/drivers/clk/qcom/Makefile +++ b/drivers/clk/qcom/Makefile @@ -24,6 +24,7 @@ obj-$(CONFIG_CLK_GFM_LPASS_SM8250) += lpass-gfm-sm8250.o obj-$(CONFIG_CLK_GLYMUR_DISPCC) += dispcc-glymur.o obj-$(CONFIG_CLK_GLYMUR_GCC) += gcc-glymur.o obj-$(CONFIG_CLK_GLYMUR_TCSRCC) += tcsrcc-glymur.o +obj-$(CONFIG_CLK_KAANAPALI_TCSRCC) += tcsrcc-kaanapali.o obj-$(CONFIG_CLK_X1E80100_CAMCC) += camcc-x1e80100.o obj-$(CONFIG_CLK_X1E80100_DISPCC) += dispcc-x1e80100.o obj-$(CONFIG_CLK_X1E80100_GCC) += gcc-x1e80100.o diff --git a/drivers/clk/qcom/tcsrcc-kaanapali.c b/drivers/clk/qcom/tcsrcc-kaanapali.c new file mode 100644 index 000000000000..4da77367c9e0 --- /dev/null +++ b/drivers/clk/qcom/tcsrcc-kaanapali.c @@ -0,0 +1,141 @@ +// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +/* + * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries. + */ + +#include +#include +#include +#include +#include + +#include + +#include "clk-branch.h" +#include "clk-regmap.h" +#include "clk-regmap-divider.h" +#include "clk-regmap-mux.h" +#include "common.h" + +enum { + DT_BI_TCXO_PAD, +}; + +static struct clk_branch tcsr_pcie_0_clkref_en = { + .halt_reg = 0x15044, + .halt_check = BRANCH_HALT_DELAY, + .clkr = { + .enable_reg = 0x15044, + .enable_mask = BIT(0), + .hw.init = &(const struct clk_init_data) { + .name = "tcsr_pcie_0_clkref_en", + .ops = &clk_branch2_ops, + }, + }, +}; + +static struct clk_branch tcsr_usb3_clkref_en = { + .halt_reg = 0x1504c, + .halt_check = BRANCH_HALT_DELAY, + .clkr = { + .enable_reg = 0x1504c, + .enable_mask = BIT(0), + .hw.init = &(const 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_branch tcsr_ufs_clkref_en = { + .halt_reg = 0x15054, + .halt_check = BRANCH_HALT_DELAY, + .clkr = { + .enable_reg = 0x15054, + .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_clkref_en = { + .halt_reg = 0x1505c, + .halt_check = BRANCH_HALT_DELAY, + .clkr = { + .enable_reg = 0x1505c, + .enable_mask = BIT(0), + .hw.init = &(const 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_regmap *tcsr_cc_kaanapali_clocks[] = { + [TCSR_PCIE_0_CLKREF_EN] = &tcsr_pcie_0_clkref_en.clkr, + [TCSR_UFS_CLKREF_EN] = &tcsr_ufs_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_kaanapali_regmap_config = { + .reg_bits = 32, + .reg_stride = 4, + .val_bits = 32, + .max_register = 0x3d000, + .fast_io = true, +}; + +static const struct qcom_cc_desc tcsr_cc_kaanapali_desc = { + .config = &tcsr_cc_kaanapali_regmap_config, + .clks = tcsr_cc_kaanapali_clocks, + .num_clks = ARRAY_SIZE(tcsr_cc_kaanapali_clocks), +}; + +static const struct of_device_id tcsr_cc_kaanapali_match_table[] = { + { .compatible = "qcom,kaanapali-tcsr" }, + { } +}; +MODULE_DEVICE_TABLE(of, tcsr_cc_kaanapali_match_table); + +static int tcsr_cc_kaanapali_probe(struct platform_device *pdev) +{ + return qcom_cc_probe(pdev, &tcsr_cc_kaanapali_desc); +} + +static struct platform_driver tcsr_cc_kaanapali_driver = { + .probe = tcsr_cc_kaanapali_probe, + .driver = { + .name = "tcsr_cc-kaanapali", + .of_match_table = tcsr_cc_kaanapali_match_table, + }, +}; + +static int __init tcsr_cc_kaanapali_init(void) +{ + return platform_driver_register(&tcsr_cc_kaanapali_driver); +} +subsys_initcall(tcsr_cc_kaanapali_init); + +static void __exit tcsr_cc_kaanapali_exit(void) +{ + platform_driver_unregister(&tcsr_cc_kaanapali_driver); +} +module_exit(tcsr_cc_kaanapali_exit); + +MODULE_DESCRIPTION("QTI TCSR_CC Kaanapali Driver"); +MODULE_LICENSE("GPL");