1 files changed, 170 insertions, 0 deletions
diff --git a/drivers/clk/qcom/turingcc-qcs404.c b/drivers/clk/qcom/turingcc-qcs404.c
new file mode 100644
index 000000000000..aa859e6ec9bd
--- /dev/null
+++ b/drivers/clk/qcom/turingcc-qcs404.c
@@ -0,0 +1,170 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2019, Linaro Ltd.
+ */
+
+#include <linux/bitops.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/module.h>
+#include <linux/of_address.h>
+#include <linux/pm_clock.h>
+#include <linux/pm_runtime.h>
+#include <linux/regmap.h>
+
+#include <dt-bindings/clock/qcom,turingcc-qcs404.h>
+
+#include "clk-regmap.h"
+#include "clk-branch.h"
+#include "common.h"
+#include "reset.h"
+
+static struct clk_branch turing_wrapper_aon_cbcr = {
+	.halt_reg = 0x5098,
+	.halt_check = BRANCH_HALT,
+	.clkr = {
+		.enable_reg = 0x5098,
+		.enable_mask = BIT(0),
+		.hw.init = &(struct clk_init_data) {
+			.name = "turing_wrapper_aon_clk",
+			.ops = &clk_branch2_aon_ops,
+		},
+	},
+};
+
+static struct clk_branch turing_q6ss_ahbm_aon_cbcr = {
+	.halt_reg = 0x9000,
+	.halt_check = BRANCH_HALT,
+	.clkr = {
+		.enable_reg = 0x9000,
+		.enable_mask = BIT(0),
+		.hw.init = &(struct clk_init_data) {
+			.name = "turing_q6ss_ahbm_aon_cbcr",
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch turing_q6ss_q6_axim_clk = {
+	.halt_reg = 0xb000,
+	.halt_check = BRANCH_HALT,
+	.clkr = {
+		.enable_reg = 0xb000,
+		.enable_mask = BIT(0),
+		.hw.init = &(struct clk_init_data) {
+			.name = "turing_q6ss_q6_axim_clk",
+			.ops = &clk_branch2_aon_ops,
+		},
+	},
+};
+
+static struct clk_branch turing_q6ss_ahbs_aon_cbcr = {
+	.halt_reg = 0x10000,
+	.halt_check = BRANCH_HALT,
+	.clkr = {
+		.enable_reg = 0x10000,
+		.enable_mask = BIT(0),
+		.hw.init = &(struct clk_init_data) {
+			.name = "turing_q6ss_ahbs_aon_clk",
+			.ops = &clk_branch2_aon_ops,
+		},
+	},
+};
+
+static struct clk_branch turing_wrapper_qos_ahbs_aon_cbcr = {
+	.halt_reg = 0x11014,
+	.halt_check = BRANCH_HALT,
+	.clkr = {
+		.enable_reg = 0x11014,
+		.enable_mask = BIT(0),
+		.hw.init = &(struct clk_init_data) {
+			.name = "turing_wrapper_qos_ahbs_aon_clk",
+			.ops = &clk_branch2_aon_ops,
+		},
+	},
+};
+
+static struct clk_regmap *turingcc_clocks[] = {
+	[TURING_WRAPPER_AON_CLK] = &turing_wrapper_aon_cbcr.clkr,
+	[TURING_Q6SS_AHBM_AON_CLK] = &turing_q6ss_ahbm_aon_cbcr.clkr,
+	[TURING_Q6SS_Q6_AXIM_CLK] = &turing_q6ss_q6_axim_clk.clkr,
+	[TURING_Q6SS_AHBS_AON_CLK] = &turing_q6ss_ahbs_aon_cbcr.clkr,
+	[TURING_WRAPPER_QOS_AHBS_AON_CLK] = &turing_wrapper_qos_ahbs_aon_cbcr.clkr,
+};
+
+static const struct regmap_config turingcc_regmap_config = {
+	.reg_bits	= 32,
+	.reg_stride	= 4,
+	.val_bits	= 32,
+	.max_register	= 0x30000,
+	.fast_io	= true,
+};
+
+static const struct qcom_cc_desc turingcc_desc = {
+	.config = &turingcc_regmap_config,
+	.clks = turingcc_clocks,
+	.num_clks = ARRAY_SIZE(turingcc_clocks),
+};
+
+static int turingcc_probe(struct platform_device *pdev)
+{
+	int ret;
+
+	pm_runtime_enable(&pdev->dev);
+	ret = pm_clk_create(&pdev->dev);
+	if (ret)
+		goto disable_pm_runtime;
+
+	ret = pm_clk_add(&pdev->dev, NULL);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "failed to acquire iface clock\n");
+		goto destroy_pm_clk;
+	}
+
+	ret = qcom_cc_probe(pdev, &turingcc_desc);
+	if (ret < 0)
+		goto destroy_pm_clk;
+
+	return 0;
+
+destroy_pm_clk:
+	pm_clk_destroy(&pdev->dev);
+
+disable_pm_runtime:
+	pm_runtime_disable(&pdev->dev);
+
+	return ret;
+}
+
+static int turingcc_remove(struct platform_device *pdev)
+{
+	pm_clk_destroy(&pdev->dev);
+	pm_runtime_disable(&pdev->dev);
+
+	return 0;
+}
+
+static const struct dev_pm_ops turingcc_pm_ops = {
+	SET_RUNTIME_PM_OPS(pm_clk_suspend, pm_clk_resume, NULL)
+};
+
+static const struct of_device_id turingcc_match_table[] = {
+	{ .compatible = "qcom,qcs404-turingcc" },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, turingcc_match_table);
+
+static struct platform_driver turingcc_driver = {
+	.probe		= turingcc_probe,
+	.remove		= turingcc_remove,
+	.driver		= {
+		.name	= "qcs404-turingcc",
+		.of_match_table = turingcc_match_table,
+		.pm = &turingcc_pm_ops,
+	},
+};
+
+module_platform_driver(turingcc_driver);
+
+MODULE_DESCRIPTION("Qualcomm QCS404 Turing Clock Controller");
+MODULE_LICENSE("GPL v2");