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Message-Id: <20251030-gcc_kaanapali-v2-v2-5-a774a587af6f@oss.qualcomm.com>
Date: Thu, 30 Oct 2025 16:39:08 +0530
From: Taniya Das <taniya.das@....qualcomm.com>
To: Bjorn Andersson <andersson@...nel.org>,
Michael Turquette <mturquette@...libre.com>,
Stephen Boyd <sboyd@...nel.org>, Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>, jingyi.wang@....qualcomm.com
Cc: aiqun.yu@....qualcomm.com, Ajit Pandey <ajit.pandey@....qualcomm.com>,
Imran Shaik <imran.shaik@....qualcomm.com>,
Jagadeesh Kona <jagadeesh.kona@....qualcomm.com>,
linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
Taniya Das <taniya.das@....qualcomm.com>
Subject: [PATCH v2 5/6] 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.
Signed-off-by: Jingyi Wang <jingyi.wang@....qualcomm.com>
Signed-off-by: Taniya Das <taniya.das@....qualcomm.com>
---
drivers/clk/qcom/Kconfig | 8 ++
drivers/clk/qcom/Makefile | 1 +
drivers/clk/qcom/tcsrcc-kaanapali.c | 141 ++++++++++++++++++++++++++++++++++++
3 files changed, 150 insertions(+)
diff --git a/drivers/clk/qcom/Kconfig b/drivers/clk/qcom/Kconfig
index 4a78099e706c2cee5162d837cad3723db75039d0..8ec1803af76cb87da59ca3ef28127c06f3e26d2b 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 5a0fd1d843c87a6f0a805706fcfad91c3f705340..2350631814779ad086d5c8304b250b0cc2f5203b 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 0000000000000000000000000000000000000000..14cfa75e892cc5ee1b03909f8c03d92de8ae2cd6
--- /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 <linux/clk-provider.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+
+#include <dt-bindings/clock/qcom,sm8750-tcsr.h>
+
+#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 = 0x0,
+ .halt_check = BRANCH_HALT_DELAY,
+ .clkr = {
+ .enable_reg = 0x0,
+ .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_ufs_clkref_en = {
+ .halt_reg = 0x10,
+ .halt_check = BRANCH_HALT_DELAY,
+ .clkr = {
+ .enable_reg = 0x10,
+ .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 = 0x18,
+ .halt_check = BRANCH_HALT_DELAY,
+ .clkr = {
+ .enable_reg = 0x18,
+ .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_branch tcsr_usb3_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_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_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 = 0x18,
+ .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");
--
2.34.1
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