From 732c47ee0d3987202655501cd7c5d8878b7510f5 Mon Sep 17 00:00:00 2001
From: Eric Kuzmenko <eric.kuzmenko@puri.sm>
Date: Tue, 7 May 2019 17:45:45 -0400
Subject: [PATCH] power: supply: bq25890: Add support for setting bq25890 and
bq25896's VINDPM
The bq25890 has low voltage protection on VIN. Allow the register
to be set from the device tree.
Signed-off-by: Eric Kuzmenko <eric.kuzmenko@puri.sm>
Signed-off-by: Angus Ainslie (Purism) <angus@akkea.ca>
---
drivers/power/supply/bq25890_charger.c | 20 +++++++++++++++-----
1 file changed, 15 insertions(+), 5 deletions(-)
diff --git a/drivers/power/supply/bq25890_charger.c b/drivers/power/supply/bq25890_charger.c
index b2ff82b4707a6..160c3a104933c 100644
--- a/drivers/power/supply/bq25890_charger.c
+++ b/drivers/power/supply/bq25890_charger.c
@@ -65,6 +65,8 @@ struct bq25890_init_data {
u8 boosti; /* boost current limit */
u8 boostf; /* boost frequency */
u8 ilim_en; /* enable ILIM pin */
+ u8 force_vindpm;/* force vinmin threshold */
+ u8 vindpm; /* vinmin threshold */
u8 treg; /* thermal regulation threshold */
};
@@ -240,6 +242,8 @@ enum bq25890_table_ids {
TBL_VREG,
TBL_BOOSTV,
TBL_SYSVMIN,
+ TBL_FORCE_VINDPM,
+ TBL_VINDPM,
/* lookup tables */
TBL_TREG,
@@ -274,11 +278,13 @@ static const union {
struct bq25890_lookup lt;
} bq25890_tables[] = {
/* range tables */
- [TBL_ICHG] = { .rt = {0, 5056000, 64000} }, /* uA */
- [TBL_ITERM] = { .rt = {64000, 1024000, 64000} }, /* uA */
- [TBL_VREG] = { .rt = {3840000, 4608000, 16000} }, /* uV */
- [TBL_BOOSTV] = { .rt = {4550000, 5510000, 64000} }, /* uV */
- [TBL_SYSVMIN] = { .rt = {3000000, 3700000, 100000} }, /* uV */
+ [TBL_ICHG] = { .rt = {0, 5056000, 64000} }, /* uA */
+ [TBL_ITERM] = { .rt = {64000, 1024000, 64000} }, /* uA */
+ [TBL_VREG] = { .rt = {3840000, 4608000, 16000} }, /* uV */
+ [TBL_BOOSTV] = { .rt = {4550000, 5510000, 64000} }, /* uV */
+ [TBL_SYSVMIN] = { .rt = {3000000, 3700000, 100000} }, /* uV */
+ [TBL_FORCE_VINDPM] = { .rt = {0, 1, 1} }, /* on/off */
+ [TBL_VINDPM] = { .rt = {2600000, 15300000, 100000} }, /* uV */
/* lookup tables */
[TBL_TREG] = { .lt = {bq25890_treg_tbl, BQ25890_TREG_TBL_SIZE} },
@@ -611,6 +617,8 @@ static int bq25890_hw_init(struct bq25890_device *bq)
{F_BOOSTI, bq->init_data.boosti},
{F_BOOSTF, bq->init_data.boostf},
{F_EN_ILIM, bq->init_data.ilim_en},
+ {F_FORCE_VINDPM, bq->init_data.force_vindpm},
+ {F_VINDPM, bq->init_data.vindpm},
{F_TREG, bq->init_data.treg}
};
@@ -773,6 +781,8 @@ static int bq25890_fw_read_u32_props(struct bq25890_device *bq)
{"ti,boost-max-current", false, TBL_BOOSTI, &init->boosti},
/* optional properties */
+ {"ti,use-vinmin-threshold", true, TBL_FORCE_VINDPM, &init->force_vindpm},
+ {"ti,vinmin-threshold", true, TBL_VINDPM, &init->vindpm},
{"ti,thermal-regulation-threshold", true, TBL_TREG, &init->treg}
};
--
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