Commit b076b995 authored by Konrad Dybcio's avatar Konrad Dybcio Committed by Bjorn Andersson
Browse files

clk: qcom: Add SM6115 LPASSCC 



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.

[alexey.klimov] fixed compilation errors after rebase,
slightly changed the commit message

Cc: Konrad Dybcio <konradybcio@kernel.org>
Cc: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: default avatarKonrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: default avatarAlexey Klimov <alexey.klimov@linaro.org>
Link: https://lore.kernel.org/r/20241212002551.2902954-3-alexey.klimov@linaro.org


Signed-off-by: default avatarBjorn Andersson <andersson@kernel.org>
parent 030de8ea

drivers/clk/qcom/Kconfig

+9 −0
Original line number Diff line number Diff line
@@ -1278,6 +1278,15 @@ 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

drivers/clk/qcom/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -159,6 +159,7 @@ 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_TCSRCC_8750) += tcsrcc-sm8750.o

drivers/clk/qcom/lpasscc-sm6115.c

0 → 100644
+85 −0
Original line number Diff line number Diff line 
// 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");