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Commit 893c1f5b authored by Jagadeesh Kona's avatar Jagadeesh Kona Committed by Gerrit - the friendly Code Review server
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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 6949a466

drivers/clk/qcom/clk-debug.c

+46 −0
Original line number Diff line number Diff line
@@ -10,6 +10,7 @@ 
#include <linux/clk-provider.h>

#include <linux/of.h>

#include <linux/bitops.h>

#include <linux/clk/qcom.h>

#include <linux/mfd/syscon.h>



#include "clk-regmap.h"
@@ -562,3 +563,48 @@ void clk_common_debug_init(struct clk_hw *hw, struct dentry *dentry) 


};



/**

 * 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, 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

+4 −1
Original line number Diff line number Diff line
@@ -6,7 +6,7 @@ 
#ifndef __LINUX_CLK_QCOM_H_

#define __LINUX_CLK_QCOM_H_



#include <linux/clk-provider.h>

#include <linux/clk.h>



enum branch_mem_flags {

	CLKFLAG_RETAIN_PERIPH,
@@ -19,5 +19,8 @@ enum branch_mem_flags { 


int qcom_clk_get_voltage(struct clk *clk, unsigned long rate);

int qcom_clk_set_flags(struct clk *clk, unsigned long flags);

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_ */