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Message-ID: <20241021230359.2632414-8-quic_molvera@quicinc.com>
Date: Mon, 21 Oct 2024 16:03:59 -0700
From: Melody Olvera <quic_molvera@...cinc.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>,
Taniya Das <quic_tdas@...cinc.com>,
Trilok Soni
<quic_tsoni@...cinc.com>,
"Satya Durga Srinivasu Prabhala --cc=linux-arm-msm
@ vger . kernel . org" <quic_satyap@...cinc.com>
CC: <linux-clk@...r.kernel.org>, <devicetree@...r.kernel.org>,
<linux-kernel@...r.kernel.org>,
Melody Olvera <quic_molvera@...cinc.com>
Subject: [PATCH 7/7] clk: qcom: Add TCSR clock driver for SM8750
From: Taniya Das <quic_tdas@...cinc.com>
The TCSR clock controller found on SM8750 provides refclks
for PCIE, USB and UFS. Add clock driver for it.
Signed-off-by: Taniya Das <quic_tdas@...cinc.com>
Signed-off-by: Melody Olvera <quic_molvera@...cinc.com>
---
drivers/clk/qcom/Kconfig | 8 ++
drivers/clk/qcom/Makefile | 1 +
drivers/clk/qcom/tcsrcc-sm8750.c | 147 +++++++++++++++++++++++++++++++
3 files changed, 156 insertions(+)
create mode 100644 drivers/clk/qcom/tcsrcc-sm8750.c
diff --git a/drivers/clk/qcom/Kconfig b/drivers/clk/qcom/Kconfig
index 14e3632b7c85..cc314c67a280 100644
--- a/drivers/clk/qcom/Kconfig
+++ b/drivers/clk/qcom/Kconfig
@@ -1198,6 +1198,14 @@ config SM_TCSRCC_8650
Support for the TCSR clock controller on SM8650 devices.
Say Y if you want to use peripheral devices such as SD/UFS.
+config SM_TCSRCC_8750
+ tristate "SM8750 TCSR Clock Controller"
+ depends on ARM64 || COMPILE_TEST
+ select QCOM_GDSC
+ help
+ Support for the TCSR clock controller on SM8750 devices.
+ Say Y if you want to use peripheral devices such as UFS/USB/PCIe.
+
config SM_VIDEOCC_7150
tristate "SM7150 Video Clock Controller"
depends on ARM64 || COMPILE_TEST
diff --git a/drivers/clk/qcom/Makefile b/drivers/clk/qcom/Makefile
index 09ddadad7525..9fe007bc9132 100644
--- a/drivers/clk/qcom/Makefile
+++ b/drivers/clk/qcom/Makefile
@@ -150,6 +150,7 @@ obj-$(CONFIG_SM_GPUCC_8550) += gpucc-sm8550.o
obj-$(CONFIG_SM_GPUCC_8650) += gpucc-sm8650.o
obj-$(CONFIG_SM_TCSRCC_8550) += tcsrcc-sm8550.o
obj-$(CONFIG_SM_TCSRCC_8650) += tcsrcc-sm8650.o
+obj-$(CONFIG_SM_TCSRCC_8750) += tcsrcc-sm8750.o
obj-$(CONFIG_SM_VIDEOCC_7150) += videocc-sm7150.o
obj-$(CONFIG_SM_VIDEOCC_8150) += videocc-sm8150.o
obj-$(CONFIG_SM_VIDEOCC_8250) += videocc-sm8250.o
diff --git a/drivers/clk/qcom/tcsrcc-sm8750.c b/drivers/clk/qcom/tcsrcc-sm8750.c
new file mode 100644
index 000000000000..23417b22e6c9
--- /dev/null
+++ b/drivers/clk/qcom/tcsrcc-sm8750.c
@@ -0,0 +1,147 @@
+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+/*
+ * Copyright (c) 2024, Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+
+#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 = 0x1000,
+ .halt_check = BRANCH_HALT_DELAY,
+ .clkr = {
+ .enable_reg = 0x1000,
+ .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 = 0x2000,
+ .halt_check = BRANCH_HALT_DELAY,
+ .clkr = {
+ .enable_reg = 0x2000,
+ .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 = 0x3000,
+ .halt_check = BRANCH_HALT_DELAY,
+ .clkr = {
+ .enable_reg = 0x3000,
+ .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_sm8750_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_sm8750_regmap_config = {
+ .reg_bits = 32,
+ .reg_stride = 4,
+ .val_bits = 32,
+ .max_register = 0x3000,
+ .fast_io = true,
+};
+
+static const struct qcom_cc_desc tcsr_cc_sm8750_desc = {
+ .config = &tcsr_cc_sm8750_regmap_config,
+ .clks = tcsr_cc_sm8750_clocks,
+ .num_clks = ARRAY_SIZE(tcsr_cc_sm8750_clocks),
+};
+
+static const struct of_device_id tcsr_cc_sm8750_match_table[] = {
+ { .compatible = "qcom,sm8750-tcsr" },
+ { }
+};
+MODULE_DEVICE_TABLE(of, tcsr_cc_sm8750_match_table);
+
+static int tcsr_cc_sm8750_probe(struct platform_device *pdev)
+{
+ struct regmap *regmap;
+
+ regmap = qcom_cc_map(pdev, &tcsr_cc_sm8750_desc);
+ if (IS_ERR(regmap))
+ return PTR_ERR(regmap);
+
+ return qcom_cc_really_probe(&pdev->dev, &tcsr_cc_sm8750_desc, regmap);
+}
+
+static struct platform_driver tcsr_cc_sm8750_driver = {
+ .probe = tcsr_cc_sm8750_probe,
+ .driver = {
+ .name = "tcsr_cc-sm8750",
+ .of_match_table = tcsr_cc_sm8750_match_table,
+ },
+};
+
+static int __init tcsr_cc_sm8750_init(void)
+{
+ return platform_driver_register(&tcsr_cc_sm8750_driver);
+}
+subsys_initcall(tcsr_cc_sm8750_init);
+
+static void __exit tcsr_cc_sm8750_exit(void)
+{
+ platform_driver_unregister(&tcsr_cc_sm8750_driver);
+}
+module_exit(tcsr_cc_sm8750_exit);
+
+MODULE_DESCRIPTION("QTI TCSR_CC SM8750 Driver");
+MODULE_LICENSE("GPL");
--
2.46.1
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