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Commit 5432bdbb authored by Ke Liu's avatar Ke Liu
Browse files

regulator: cpr-regulator: add debugfs support for cpr voltage limits 



Add support for checking the corresponding value for cpr ceiling, floor
and max_ceiling for the currently operating virtual corner.

CRs-Fixed: 773272
Change-Id: Ic1c42c0253ed6d6c84ce2cad26492d4e46f1ff83
Signed-off-by: default avatarKe Liu <keliu@codeaurora.org>
parent 2c2e2f89

drivers/regulator/cpr-regulator.c

+60 −1
Original line number Diff line number Diff line
@@ -262,6 +262,7 @@ struct cpr_regulator { 
	phys_addr_t	rbcpr_clk_addr;

	struct mutex	cpr_mutex;



	int		*cpr_max_ceiling;

	int		*ceiling_volt;

	int		*floor_volt;

	int		*fuse_ceiling_volt;
@@ -3220,7 +3221,10 @@ static int cpr_init_ceiling_floor_override_voltages( 
						GFP_KERNEL);

	cpr_vreg->floor_volt = devm_kzalloc(dev, sizeof(int) * size,

						GFP_KERNEL);

	if (!cpr_vreg->ceiling_volt || !cpr_vreg->floor_volt)

	cpr_vreg->cpr_max_ceiling = devm_kzalloc(dev, sizeof(int) * size,

						GFP_KERNEL);

	if (!cpr_vreg->ceiling_volt || !cpr_vreg->floor_volt ||

		!cpr_vreg->cpr_max_ceiling)

		return -ENOMEM;



	rc = cpr_fill_override_voltage(cpr_vreg, dev,
@@ -3245,6 +3249,7 @@ static int cpr_init_ceiling_floor_override_voltages( 


		if (cpr_vreg->ceiling_max < cpr_vreg->ceiling_volt[i])

			cpr_vreg->ceiling_max = cpr_vreg->ceiling_volt[i];

		cpr_vreg->cpr_max_ceiling[i] = cpr_vreg->ceiling_volt[i];

	}



	return rc;
@@ -3854,6 +3859,39 @@ static int cpr_enable_get(void *data, u64 *val) 
DEFINE_SIMPLE_ATTRIBUTE(cpr_enable_fops, cpr_enable_get, cpr_enable_set,

			"%llu\n");



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

{

	struct cpr_regulator *cpr_vreg = data;



	*val = cpr_vreg->ceiling_volt[cpr_vreg->corner];



	return 0;

}

DEFINE_SIMPLE_ATTRIBUTE(cpr_ceiling_fops, cpr_get_cpr_ceiling, NULL,

			"%llu\n");



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

{

	struct cpr_regulator *cpr_vreg = data;



	*val = cpr_vreg->floor_volt[cpr_vreg->corner];



	return 0;

}

DEFINE_SIMPLE_ATTRIBUTE(cpr_floor_fops, cpr_get_cpr_floor, NULL,

			"%llu\n");



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

{

	struct cpr_regulator *cpr_vreg = data;



	*val = cpr_vreg->cpr_max_ceiling[cpr_vreg->corner];



	return 0;

}

DEFINE_SIMPLE_ATTRIBUTE(cpr_max_ceiling_fops, cpr_get_cpr_max_ceiling, NULL,

			"%llu\n");



static int cpr_debug_info_open(struct inode *inode, struct file *file)

{

	file->private_data = inode->i_private;
@@ -3981,6 +4019,27 @@ static void cpr_debugfs_init(struct cpr_regulator *cpr_vreg) 
		cpr_err(cpr_vreg, "cpr_enable node creation failed\n");

		return;

	}



	temp = debugfs_create_file("cpr_ceiling", S_IRUGO,

			cpr_vreg->debugfs, cpr_vreg, &cpr_ceiling_fops);

	if (IS_ERR_OR_NULL(temp)) {

		cpr_err(cpr_vreg, "cpr_ceiling node creation failed\n");

		return;

	}



	temp = debugfs_create_file("cpr_floor", S_IRUGO,

			cpr_vreg->debugfs, cpr_vreg, &cpr_floor_fops);

	if (IS_ERR_OR_NULL(temp)) {

		cpr_err(cpr_vreg, "cpr_floor node creation failed\n");

		return;

	}



	temp = debugfs_create_file("cpr_max_ceiling", S_IRUGO,

			cpr_vreg->debugfs, cpr_vreg, &cpr_max_ceiling_fops);

	if (IS_ERR_OR_NULL(temp)) {

		cpr_err(cpr_vreg, "cpr_max_ceiling node creation failed\n");

		return;

	}

}



static void cpr_debugfs_remove(struct cpr_regulator *cpr_vreg)