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path: root/drivers/clk/qcom/q6sstop-qcs404.c
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Diffstat (limited to 'drivers/clk/qcom/q6sstop-qcs404.c')
-rw-r--r--drivers/clk/qcom/q6sstop-qcs404.c221
1 files changed, 221 insertions, 0 deletions
diff --git a/drivers/clk/qcom/q6sstop-qcs404.c b/drivers/clk/qcom/q6sstop-qcs404.c
new file mode 100644
index 000000000..26e2d6361
--- /dev/null
+++ b/drivers/clk/qcom/q6sstop-qcs404.c
@@ -0,0 +1,221 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2018, The Linux Foundation. All rights reserved.
+ */
+
+#include <linux/bitops.h>
+#include <linux/clk-provider.h>
+#include <linux/err.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/pm_clock.h>
+#include <linux/pm_runtime.h>
+#include <linux/regmap.h>
+
+#include <dt-bindings/clock/qcom,q6sstopcc-qcs404.h>
+
+#include "clk-regmap.h"
+#include "clk-branch.h"
+#include "common.h"
+#include "reset.h"
+
+static struct clk_branch lcc_ahbfabric_cbc_clk = {
+ .halt_reg = 0x1b004,
+ .halt_check = BRANCH_HALT,
+ .clkr = {
+ .enable_reg = 0x1b004,
+ .enable_mask = BIT(0),
+ .hw.init = &(struct clk_init_data){
+ .name = "lcc_ahbfabric_cbc_clk",
+ .ops = &clk_branch2_ops,
+ },
+ },
+};
+
+static struct clk_branch lcc_q6ss_ahbs_cbc_clk = {
+ .halt_reg = 0x22000,
+ .halt_check = BRANCH_VOTED,
+ .clkr = {
+ .enable_reg = 0x22000,
+ .enable_mask = BIT(0),
+ .hw.init = &(struct clk_init_data){
+ .name = "lcc_q6ss_ahbs_cbc_clk",
+ .ops = &clk_branch2_ops,
+ },
+ },
+};
+
+static struct clk_branch lcc_q6ss_tcm_slave_cbc_clk = {
+ .halt_reg = 0x1c000,
+ .halt_check = BRANCH_VOTED,
+ .clkr = {
+ .enable_reg = 0x1c000,
+ .enable_mask = BIT(0),
+ .hw.init = &(struct clk_init_data){
+ .name = "lcc_q6ss_tcm_slave_cbc_clk",
+ .ops = &clk_branch2_ops,
+ },
+ },
+};
+
+static struct clk_branch lcc_q6ss_ahbm_cbc_clk = {
+ .halt_reg = 0x22004,
+ .halt_check = BRANCH_VOTED,
+ .clkr = {
+ .enable_reg = 0x22004,
+ .enable_mask = BIT(0),
+ .hw.init = &(struct clk_init_data){
+ .name = "lcc_q6ss_ahbm_cbc_clk",
+ .ops = &clk_branch2_ops,
+ },
+ },
+};
+
+static struct clk_branch lcc_q6ss_axim_cbc_clk = {
+ .halt_reg = 0x1c004,
+ .halt_check = BRANCH_VOTED,
+ .clkr = {
+ .enable_reg = 0x1c004,
+ .enable_mask = BIT(0),
+ .hw.init = &(struct clk_init_data){
+ .name = "lcc_q6ss_axim_cbc_clk",
+ .ops = &clk_branch2_ops,
+ },
+ },
+};
+
+static struct clk_branch lcc_q6ss_bcr_sleep_clk = {
+ .halt_reg = 0x6004,
+ .halt_check = BRANCH_VOTED,
+ .clkr = {
+ .enable_reg = 0x6004,
+ .enable_mask = BIT(0),
+ .hw.init = &(struct clk_init_data){
+ .name = "lcc_q6ss_bcr_sleep_clk",
+ .ops = &clk_branch2_ops,
+ },
+ },
+};
+
+/* TCSR clock */
+static struct clk_branch tcsr_lcc_csr_cbcr_clk = {
+ .halt_reg = 0x8008,
+ .halt_check = BRANCH_VOTED,
+ .clkr = {
+ .enable_reg = 0x8008,
+ .enable_mask = BIT(0),
+ .hw.init = &(struct clk_init_data){
+ .name = "tcsr_lcc_csr_cbcr_clk",
+ .ops = &clk_branch2_ops,
+ },
+ },
+};
+
+static struct regmap_config q6sstop_regmap_config = {
+ .reg_bits = 32,
+ .reg_stride = 4,
+ .val_bits = 32,
+ .fast_io = true,
+};
+
+static struct clk_regmap *q6sstop_qcs404_clocks[] = {
+ [LCC_AHBFABRIC_CBC_CLK] = &lcc_ahbfabric_cbc_clk.clkr,
+ [LCC_Q6SS_AHBS_CBC_CLK] = &lcc_q6ss_ahbs_cbc_clk.clkr,
+ [LCC_Q6SS_TCM_SLAVE_CBC_CLK] = &lcc_q6ss_tcm_slave_cbc_clk.clkr,
+ [LCC_Q6SS_AHBM_CBC_CLK] = &lcc_q6ss_ahbm_cbc_clk.clkr,
+ [LCC_Q6SS_AXIM_CBC_CLK] = &lcc_q6ss_axim_cbc_clk.clkr,
+ [LCC_Q6SS_BCR_SLEEP_CLK] = &lcc_q6ss_bcr_sleep_clk.clkr,
+};
+
+static const struct qcom_reset_map q6sstop_qcs404_resets[] = {
+ [Q6SSTOP_BCR_RESET] = { 0x6000 },
+};
+
+static const struct qcom_cc_desc q6sstop_qcs404_desc = {
+ .config = &q6sstop_regmap_config,
+ .clks = q6sstop_qcs404_clocks,
+ .num_clks = ARRAY_SIZE(q6sstop_qcs404_clocks),
+ .resets = q6sstop_qcs404_resets,
+ .num_resets = ARRAY_SIZE(q6sstop_qcs404_resets),
+};
+
+static struct clk_regmap *tcsr_qcs404_clocks[] = {
+ [TCSR_Q6SS_LCC_CBCR_CLK] = &tcsr_lcc_csr_cbcr_clk.clkr,
+};
+
+static const struct qcom_cc_desc tcsr_qcs404_desc = {
+ .config = &q6sstop_regmap_config,
+ .clks = tcsr_qcs404_clocks,
+ .num_clks = ARRAY_SIZE(tcsr_qcs404_clocks),
+};
+
+static const struct of_device_id q6sstopcc_qcs404_match_table[] = {
+ { .compatible = "qcom,qcs404-q6sstopcc" },
+ { }
+};
+MODULE_DEVICE_TABLE(of, q6sstopcc_qcs404_match_table);
+
+static int q6sstopcc_qcs404_probe(struct platform_device *pdev)
+{
+ const struct qcom_cc_desc *desc;
+ int ret;
+
+ ret = devm_pm_runtime_enable(&pdev->dev);
+ if (ret)
+ return ret;
+
+ ret = devm_pm_clk_create(&pdev->dev);
+ if (ret)
+ return ret;
+
+ ret = pm_clk_add(&pdev->dev, NULL);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "failed to acquire iface clock\n");
+ return ret;
+ }
+
+ ret = pm_runtime_resume_and_get(&pdev->dev);
+ if (ret)
+ return ret;
+
+ q6sstop_regmap_config.name = "q6sstop_tcsr";
+ desc = &tcsr_qcs404_desc;
+
+ ret = qcom_cc_probe_by_index(pdev, 1, desc);
+ if (ret)
+ goto err_put_rpm;
+
+ q6sstop_regmap_config.name = "q6sstop_cc";
+ desc = &q6sstop_qcs404_desc;
+
+ ret = qcom_cc_probe_by_index(pdev, 0, desc);
+ if (ret)
+ goto err_put_rpm;
+
+ pm_runtime_put(&pdev->dev);
+
+ return 0;
+
+err_put_rpm:
+ pm_runtime_put_sync(&pdev->dev);
+
+ return ret;
+}
+
+static const struct dev_pm_ops q6sstopcc_pm_ops = {
+ SET_RUNTIME_PM_OPS(pm_clk_suspend, pm_clk_resume, NULL)
+};
+
+static struct platform_driver q6sstopcc_qcs404_driver = {
+ .probe = q6sstopcc_qcs404_probe,
+ .driver = {
+ .name = "qcs404-q6sstopcc",
+ .of_match_table = q6sstopcc_qcs404_match_table,
+ .pm = &q6sstopcc_pm_ops,
+ },
+};
+
+module_platform_driver(q6sstopcc_qcs404_driver);
+
+MODULE_DESCRIPTION("QTI QCS404 Q6SSTOP Clock Controller Driver");
+MODULE_LICENSE("GPL v2");