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Commit 4783de9b authored by Steve Muckle's avatar Steve Muckle Committed by Daniel Walker
Browse files

arm: msm: status for vreg 



Keep track of the success/failure of the last vreg proc comm
command, and return that on debugfs reads.

Signed-off-by: default avatarSteve Muckle <smuckle@quicinc.com>
parent 0c50b444

arch/arm/mach-msm/include/mach/vreg.h

+1 −1
Original line number Diff line number Diff line
@@ -23,7 +23,7 @@ struct vreg *vreg_get(struct device *dev, const char *id); 
void vreg_put(struct vreg *vreg);



int vreg_enable(struct vreg *vreg);

void vreg_disable(struct vreg *vreg);

int vreg_disable(struct vreg *vreg);

int vreg_set_level(struct vreg *vreg, unsigned mv);



#endif

arch/arm/mach-msm/vreg.c

+53 −37
Original line number Diff line number Diff line 
/* arch/arm/mach-msm/vreg.c

 *

 * Copyright (C) 2008 Google, Inc.

 * Copyright (c) 2009, Code Aurora Forum. All rights reserved.

 * Author: Brian Swetland <swetland@google.com>

 *

 * This software is licensed under the terms of the GNU General Public
@@ -25,42 +26,44 @@ 
struct vreg {

	const char *name;

	unsigned id;

	int status;

};



#define VREG(_name, _id) { .name = _name, .id = _id, }

#define VREG(_name, _id, _status) \

	{ .name = _name, .id = _id, .status = _status }



static struct vreg vregs[] = {

	VREG("msma",	0),

	VREG("msmp",	1),

	VREG("msme1",	2),

	VREG("msmc1",	3),

	VREG("msmc2",	4),

	VREG("gp3",	5),

	VREG("msme2",	6),

	VREG("gp4",	7),

	VREG("gp1",	8),

	VREG("tcxo",	9),

	VREG("pa",	10),

	VREG("rftx",	11),

	VREG("rfrx1",	12),

	VREG("rfrx2",	13),

	VREG("synt",	14),

	VREG("wlan",	15),

	VREG("usb",	16),

	VREG("boost",	17),

	VREG("mmc",	18),

	VREG("ruim",	19),

	VREG("msmc0",	20),

	VREG("gp2",	21),

	VREG("gp5",	22),

	VREG("gp6",	23),

	VREG("rf",	24),

	VREG("rf_vco",	26),

	VREG("mpll",	27),

	VREG("s2",	28),

	VREG("s3",	29),

	VREG("rfubm",	30),

	VREG("ncp",	31),

	VREG("msma",	0, 0),

	VREG("msmp",	1, 0),

	VREG("msme1",	2, 0),

	VREG("msmc1",	3, 0),

	VREG("msmc2",	4, 0),

	VREG("gp3",	5, 0),

	VREG("msme2",	6, 0),

	VREG("gp4",	7, 0),

	VREG("gp1",	8, 0),

	VREG("tcxo",	9, 0),

	VREG("pa",	10, 0),

	VREG("rftx",	11, 0),

	VREG("rfrx1",	12, 0),

	VREG("rfrx2",	13, 0),

	VREG("synt",	14, 0),

	VREG("wlan",	15, 0),

	VREG("usb",	16, 0),

	VREG("boost",	17, 0),

	VREG("mmc",	18, 0),

	VREG("ruim",	19, 0),

	VREG("msmc0",	20, 0),

	VREG("gp2",	21, 0),

	VREG("gp5",	22, 0),

	VREG("gp6",	23, 0),

	VREG("rf",	24, 0),

	VREG("rf_vco",	26, 0),

	VREG("mpll",	27, 0),

	VREG("s2",	28, 0),

	VREG("s3",	29, 0),

	VREG("rfubm",	30, 0),

	VREG("ncp",	31, 0),

};



struct vreg *vreg_get(struct device *dev, const char *id)
@@ -81,20 +84,26 @@ int vreg_enable(struct vreg *vreg) 
{

	unsigned id = vreg->id;

	unsigned enable = 1;

	return msm_proc_comm(PCOM_VREG_SWITCH, &id, &enable);



	vreg->status = msm_proc_comm(PCOM_VREG_SWITCH, &id, &enable);

	return vreg->status;

}



void vreg_disable(struct vreg *vreg)

int vreg_disable(struct vreg *vreg)

{

	unsigned id = vreg->id;

	unsigned enable = 0;

	msm_proc_comm(PCOM_VREG_SWITCH, &id, &enable);



	vreg->status = msm_proc_comm(PCOM_VREG_SWITCH, &id, &enable);

	return vreg->status;

}



int vreg_set_level(struct vreg *vreg, unsigned mv)

{

	unsigned id = vreg->id;

	return msm_proc_comm(PCOM_VREG_SET_LEVEL, &id, &mv);



	vreg->status = msm_proc_comm(PCOM_VREG_SET_LEVEL, &id, &mv);

	return vreg->status;

}



#if defined(CONFIG_DEBUG_FS)
@@ -118,7 +127,14 @@ static int vreg_debug_set(void *data, u64 val) 


static int vreg_debug_get(void *data, u64 *val)

{

	return -ENOSYS;

	struct vreg *vreg = data;



	if (!vreg->status)

		*val = 0;

	else

		*val = 1;



	return 0;

}



DEFINE_SIMPLE_ATTRIBUTE(vreg_fops, vreg_debug_get, vreg_debug_set, "%llu\n");