From: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
SM6115 (and its derivatives or similar SoCs) has an LPASS clock
controller block which provides audio-related resets.
Add the required code to support them.
Cc: Konrad Dybcio <konradybcio@xxxxxxxxxx>
Cc: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxxxx>
Cc: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
Signed-off-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
[alexey.klimov] fixed compilation errors after rebase,
slightly changed the commit message
Signed-off-by: Alexey Klimov <alexey.klimov@xxxxxxxxxx>
---
drivers/clk/qcom/Kconfig | 9 ++++
drivers/clk/qcom/Makefile | 1 +
drivers/clk/qcom/lpasscc-sm6115.c | 85 +++++++++++++++++++++++++++++++
3 files changed, 95 insertions(+)
create mode 100644 drivers/clk/qcom/lpasscc-sm6115.c
diff --git a/drivers/clk/qcom/Kconfig b/drivers/clk/qcom/Kconfig
index 30eb8236c9d8..b6b68fc5c3f7 100644
--- a/drivers/clk/qcom/Kconfig
+++ b/drivers/clk/qcom/Kconfig
@@ -1173,6 +1173,15 @@ config SM_GPUCC_8650
Say Y if you want to support graphics controller devices and
functionality such as 3D graphics.
+config SM_LPASSCC_6115
+ tristate "SM6115 Low Power Audio Subsystem (LPASS) Clock Controller"
+ depends on ARM64 || COMPILE_TEST
+ select SM_GCC_6115
+ help
+ Support for the LPASS clock controller on SM6115 devices.
+ Say Y if you want to toggle LPASS-adjacent resets within
+ this clock controller to reset the LPASS subsystem.
+
config SM_TCSRCC_8550
tristate "SM8550 TCSR Clock Controller"
depends on ARM64 || COMPILE_TEST
diff --git a/drivers/clk/qcom/Makefile b/drivers/clk/qcom/Makefile
index 2b378667a63f..16e65148066e 100644
--- a/drivers/clk/qcom/Makefile
+++ b/drivers/clk/qcom/Makefile
@@ -147,6 +147,7 @@ obj-$(CONFIG_SM_GPUCC_8350) += gpucc-sm8350.o
obj-$(CONFIG_SM_GPUCC_8450) += gpucc-sm8450.o
obj-$(CONFIG_SM_GPUCC_8550) += gpucc-sm8550.o
obj-$(CONFIG_SM_GPUCC_8650) += gpucc-sm8650.o
+obj-$(CONFIG_SM_LPASSCC_6115) += lpasscc-sm6115.o
obj-$(CONFIG_SM_TCSRCC_8550) += tcsrcc-sm8550.o
obj-$(CONFIG_SM_TCSRCC_8650) += tcsrcc-sm8650.o
obj-$(CONFIG_SM_VIDEOCC_7150) += videocc-sm7150.o
diff --git a/drivers/clk/qcom/lpasscc-sm6115.c b/drivers/clk/qcom/lpasscc-sm6115.c
new file mode 100644
index 000000000000..8ffdab71b948
--- /dev/null
+++ b/drivers/clk/qcom/lpasscc-sm6115.c
@@ -0,0 +1,85 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2022, 2023 Linaro Limited
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/err.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mod_devicetable.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+
+#include <dt-bindings/clock/qcom,sm6115-lpasscc.h>
+
+#include "common.h"
+#include "reset.h"
+
+static const struct qcom_reset_map lpass_audiocc_sm6115_resets[] = {
+ [LPASS_AUDIO_SWR_RX_CGCR] = { .reg = 0x98, .bit = 1, .udelay = 500 },
+};
+
+static struct regmap_config lpass_audiocc_sm6115_regmap_config = {
+ .reg_bits = 32,
+ .reg_stride = 4,
+ .val_bits = 32,
+ .name = "lpass-audio-csr",
+ .max_register = 0x1000,
+};
+
+static const struct qcom_cc_desc lpass_audiocc_sm6115_reset_desc = {
+ .config = &lpass_audiocc_sm6115_regmap_config,
+ .resets = lpass_audiocc_sm6115_resets,
+ .num_resets = ARRAY_SIZE(lpass_audiocc_sm6115_resets),
+};
+
+static const struct qcom_reset_map lpasscc_sm6115_resets[] = {
+ [LPASS_SWR_TX_CONFIG_CGCR] = { .reg = 0x100, .bit = 1, .udelay = 500 },
+};
+
+static struct regmap_config lpasscc_sm6115_regmap_config = {
+ .reg_bits = 32,
+ .reg_stride = 4,
+ .val_bits = 32,
+ .name = "lpass-tcsr",
+ .max_register = 0x1000,
+};
+
+static const struct qcom_cc_desc lpasscc_sm6115_reset_desc = {
+ .config = &lpasscc_sm6115_regmap_config,
+ .resets = lpasscc_sm6115_resets,
+ .num_resets = ARRAY_SIZE(lpasscc_sm6115_resets),
+};
+
+static const struct of_device_id lpasscc_sm6115_match_table[] = {
+ {
+ .compatible = "qcom,sm6115-lpassaudiocc",
+ .data = &lpass_audiocc_sm6115_reset_desc,
+ }, {
+ .compatible = "qcom,sm6115-lpasscc",
+ .data = &lpasscc_sm6115_reset_desc,
+ },
+ { },
+};
+MODULE_DEVICE_TABLE(of, lpasscc_sm6115_match_table);
+
+static int lpasscc_sm6115_probe(struct platform_device *pdev)
+{
+ const struct qcom_cc_desc *desc = of_device_get_match_data(&pdev->dev);
+
+ return qcom_cc_probe_by_index(pdev, 0, desc);
+}
+
+static struct platform_driver lpasscc_sm6115_driver = {
+ .probe = lpasscc_sm6115_probe,
+ .driver = {
+ .name = "lpasscc-sm6115",
+ .of_match_table = lpasscc_sm6115_match_table,
+ },
+};
+
+module_platform_driver(lpasscc_sm6115_driver);
+
+MODULE_DESCRIPTION("QTI LPASSCC SM6115 Driver");
+MODULE_LICENSE("GPL");
--
2.45.2
