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Commit 24add521 authored by Ashay Jaiswal's avatar Ashay Jaiswal
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power: smb1390: add support to configure temp alarm threshold 



Add support to configure temp alarm threshold for SMB1390
die-temp via device tree. If DT property is not specified the
default temperature threshold is set to 110 DegC.

Change-Id: Icd9e94c241deea33687769043810c848c0a682ed
Signed-off-by: default avatarAshay Jaiswal <ashayj@codeaurora.org>
parent 1fdb5291

Documentation/devicetree/bindings/power/supply/qcom/smb1390-charger-psy.txt

+10 −0
Original line number Original line Diff line number Diff line
@@ -38,6 +38,16 @@ Charger specific properties: 
  Definition: Minimum ILIM supported, if requested ILIM goes below this value

  Definition: Minimum ILIM supported, if requested ILIM goes below this value

	      disable SMB1390. If this values is not specified default minimum

	      disable SMB1390. If this values is not specified default minimum

	      ILIM is 1A.

	      ILIM is 1A.



- qcom,max-temp-alarm-degc

  Usage:      optional

  Value type: <u32>

  Definition: Maximum die temperature to trigger temp alarm. The value

	      must be one of the following:

	      85, 95, 110, 125.

	      If this value is not specified or is not one of the above

	      then default value is 110.



================================================

================================================

Second Level Nodes - SMB1390 Charger Peripherals

Second Level Nodes - SMB1390 Charger Peripherals

================================================

================================================

drivers/power/supply/qcom/smb1390-charger-psy.c

+28 −2
Original line number Original line Diff line number Diff line
@@ -69,6 +69,10 @@ 
#define CORE_FTRIM_ILIM_REG		0x1030

#define CORE_FTRIM_ILIM_REG		0x1030

#define CFG_ILIM_MASK			GENMASK(4, 0)

#define CFG_ILIM_MASK			GENMASK(4, 0)





#define CORE_FTRIM_CTRL_REG		0x1031

#define TEMP_ALERT_LVL_MASK		GENMASK(6, 5)

#define TEMP_ALERT_LVL_SHIFT		5



#define CORE_FTRIM_LVL_REG		0x1033

#define CORE_FTRIM_LVL_REG		0x1033

#define CFG_WIN_HI_MASK			GENMASK(3, 2)

#define CFG_WIN_HI_MASK			GENMASK(3, 2)

#define WIN_OV_LVL_1000MV		0x08

#define WIN_OV_LVL_1000MV		0x08
@@ -171,6 +175,7 @@ struct smb1390 { 
	bool			suspended;

	bool			suspended;

	u32			debug_mask;

	u32			debug_mask;

	u32			min_ilim_ua;

	u32			min_ilim_ua;

	u32			max_temp_alarm_degc;

};

};





struct smb_irq {

struct smb_irq {
@@ -877,6 +882,10 @@ static int smb1390_parse_dt(struct smb1390 *chip) 
	of_property_read_u32(chip->dev->of_node, "qcom,min-ilim-ua",

	of_property_read_u32(chip->dev->of_node, "qcom,min-ilim-ua",

			&chip->min_ilim_ua);

			&chip->min_ilim_ua);





	chip->max_temp_alarm_degc = 110;

	of_property_read_u32(chip->dev->of_node, "qcom,max-temp-alarm-degc",

			&chip->max_temp_alarm_degc);



	return 0;

	return 0;

}

}
@@ -923,7 +932,7 @@ static void smb1390_destroy_votables(struct smb1390 *chip) 




static int smb1390_init_hw(struct smb1390 *chip)

static int smb1390_init_hw(struct smb1390 *chip)

{

{

	int rc;

	int rc = 0, val;





	/*

	/*

	 * Improve ILIM accuracy:

	 * Improve ILIM accuracy:
@@ -940,8 +949,25 @@ static int smb1390_init_hw(struct smb1390 *chip) 
	if (rc < 0)

	if (rc < 0)

		return rc;

		return rc;





	switch (chip->max_temp_alarm_degc) {

	case 125:

		val = 0x00;

		break;

	case 95:

		val = 0x02;

		break;

	case 85:

		val = 0x03;

		break;

	case 110:

	default:

		val = 0x01;

		break;

	}

	rc = smb1390_masked_write(chip, CORE_FTRIM_CTRL_REG,

			TEMP_ALERT_LVL_MASK, val << TEMP_ALERT_LVL_SHIFT);





	return 0;

	return rc;

}

}





static int smb1390_get_irq_index_byname(const char *irq_name)

static int smb1390_get_irq_index_byname(const char *irq_name)