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Commit f4956e45 authored by Jagadeesh Kona's avatar Jagadeesh Kona
Browse files

clk: qcom: clk-debug: Add support for debug clock API's 



Add support for qcom_clk_dump and qcom_clk_bulk_dump API's
which can be used by the clients to dump the registers
associated with the clock and it's parents.

Change-Id: Iea7f30bb4e789e41dbae41b88514ffd53c136174
Signed-off-by: default avatarJagadeesh Kona <jkona@codeaurora.org>
parent 8b6e59f3

drivers/clk/qcom/clk-debug.c

+48 −1
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-only

/* Copyright (c) 2016, 2019, The Linux Foundation. All rights reserved. */

/* Copyright (c) 2016, 2019-2020 The Linux Foundation. All rights reserved. */



#include <linux/clk.h>

#include <linux/export.h>
@@ -14,6 +14,7 @@ 


#include "clk-regmap.h"

#include "clk-debug.h"

#include "common.h"



static struct clk_hw *measure;
@@ -409,3 +410,49 @@ int map_debug_bases(struct platform_device *pdev, const char *base, 
	return 0;

}

EXPORT_SYMBOL(map_debug_bases);



/**

 * qcom_clk_dump - dump the HW specific registers associated with this clock

 * @clk: clock source

 * @calltrace: indicates whether calltrace is required

 *

 * This function attempts to print all the registers associated with the

 * clock and it's parents.

 */

void qcom_clk_dump(struct clk *clk, bool calltrace)

{

	struct clk_hw *hw;



	if (IS_ERR_OR_NULL(clk))

		return;



	hw = __clk_get_hw(clk);

	if (IS_ERR_OR_NULL(hw))

		return;



	pr_info("Dumping %s Registers:\n", clk_hw_get_name(hw));

	WARN_CLK(hw->core, clk_hw_get_name(hw), calltrace, "");

}

EXPORT_SYMBOL(qcom_clk_dump);



/**

 * qcom_clk_bulk_dump - dump the HW specific registers associated with clocks

 * @clks: the clk_bulk_data table of consumer

 * @num_clks: the number of clk_bulk_data

 * @calltrace: indicates whether calltrace is required

 *

 * This function attempts to print all the registers associated with the

 * clock and it's parents for all the clocks in the list.

 */

void qcom_clk_bulk_dump(int num_clks, struct clk_bulk_data *clks,

			bool calltrace)

{

	int i;



	if (IS_ERR_OR_NULL(clks))

		return;



	for (i = 0; i < num_clks; i++)

		qcom_clk_dump(clks[i].clk, calltrace);

}

EXPORT_SYMBOL(qcom_clk_bulk_dump);

include/linux/clk/qcom.h

+7 −1
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0-only */

/*

 * Copyright (c) 2016, The Linux Foundation. All rights reserved.

 * Copyright (c) 2016, 2020 The Linux Foundation. All rights reserved.

 */



#ifndef __LINUX_CLK_QCOM_H_

#define __LINUX_CLK_QCOM_H_



#include <linux/clk.h>



enum branch_mem_flags {

	CLKFLAG_RETAIN_PERIPH,

	CLKFLAG_NORETAIN_PERIPH,
@@ -15,4 +17,8 @@ enum branch_mem_flags { 
	CLKFLAG_PERIPH_OFF_CLEAR,

};



void qcom_clk_dump(struct clk *clk, bool calltrace);

void qcom_clk_bulk_dump(int num_clks, struct clk_bulk_data *clks,

			bool calltrace);



#endif  /* __LINUX_CLK_QCOM_H_ */