Commit 7cf45f7c authored by Eric Kuzmenko's avatar Eric Kuzmenko
Browse files

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's avatarEric Kuzmenko <eric.kuzmenko@puri.sm>
Signed-off-by: default avatarAngus Ainslie (Purism) <angus@akkea.ca>
parent 9c4b746e
...@@ -75,6 +75,8 @@ struct bq25890_init_data { ...@@ -75,6 +75,8 @@ struct bq25890_init_data {
u8 boosti; /* boost current limit */ u8 boosti; /* boost current limit */
u8 boostf; /* boost frequency */ u8 boostf; /* boost frequency */
u8 ilim_en; /* enable ILIM pin */ u8 ilim_en; /* enable ILIM pin */
u8 force_vindpm;/* force vinmin threshold */
u8 vindpm; /* vinmin threshold */
u8 treg; /* thermal regulation threshold */ u8 treg; /* thermal regulation threshold */
}; };
...@@ -253,6 +255,7 @@ enum bq25890_table_ids { ...@@ -253,6 +255,7 @@ enum bq25890_table_ids {
TBL_VCLAMP, TBL_VCLAMP,
TBL_BOOSTV, TBL_BOOSTV,
TBL_SYSVMIN, TBL_SYSVMIN,
TBL_VINDPM,
/* lookup tables */ /* lookup tables */
TBL_TREG, TBL_TREG,
...@@ -287,13 +290,14 @@ static const union { ...@@ -287,13 +290,14 @@ static const union {
struct bq25890_lookup lt; struct bq25890_lookup lt;
} bq25890_tables[] = { } bq25890_tables[] = {
/* range tables */ /* range tables */
[TBL_ICHG] = { .rt = {0, 5056000, 64000} }, /* uA */ [TBL_ICHG] = { .rt = {0, 5056000, 64000} }, /* uA */
[TBL_ITERM] = { .rt = {64000, 1024000, 64000} }, /* uA */ [TBL_ITERM] = { .rt = {64000, 1024000, 64000} }, /* uA */
[TBL_VREG] = { .rt = {3840000, 4608000, 16000} }, /* uV */ [TBL_VREG] = { .rt = {3840000, 4608000, 16000} }, /* uV */
[TBL_BATCMP] = { .rt = {0, 140, 20} }, /* mOhm */ [TBL_BATCMP] = { .rt = {0, 140, 20} }, /* mOhm */
[TBL_VCLAMP] = { .rt = {0, 224000, 32000} }, /* uV */ [TBL_VCLAMP] = { .rt = {0, 224000, 32000} }, /* uV */
[TBL_BOOSTV] = { .rt = {4550000, 5510000, 64000} }, /* uV */ [TBL_BOOSTV] = { .rt = {4550000, 5510000, 64000} }, /* uV */
[TBL_SYSVMIN] = { .rt = {3000000, 3700000, 100000} }, /* uV */ [TBL_SYSVMIN] = { .rt = {3000000, 3700000, 100000} }, /* uV */
[TBL_VINDPM] = { .rt = {2600000, 15300000, 100000} }, /* uV */
/* lookup tables */ /* lookup tables */
[TBL_TREG] = { .lt = {bq25890_treg_tbl, BQ25890_TREG_TBL_SIZE} }, [TBL_TREG] = { .lt = {bq25890_treg_tbl, BQ25890_TREG_TBL_SIZE} },
...@@ -628,6 +632,8 @@ static int bq25890_hw_init(struct bq25890_device *bq) ...@@ -628,6 +632,8 @@ static int bq25890_hw_init(struct bq25890_device *bq)
{F_BOOSTI, bq->init_data.boosti}, {F_BOOSTI, bq->init_data.boosti},
{F_BOOSTF, bq->init_data.boostf}, {F_BOOSTF, bq->init_data.boostf},
{F_EN_ILIM, bq->init_data.ilim_en}, {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} {F_TREG, bq->init_data.treg}
}; };
...@@ -791,6 +797,7 @@ static int bq25890_fw_read_u32_props(struct bq25890_device *bq) ...@@ -791,6 +797,7 @@ static int bq25890_fw_read_u32_props(struct bq25890_device *bq)
{"ti,minimum-sys-voltage", false, TBL_SYSVMIN, &init->sysvmin}, {"ti,minimum-sys-voltage", false, TBL_SYSVMIN, &init->sysvmin},
{"ti,boost-voltage", false, TBL_BOOSTV, &init->boostv}, {"ti,boost-voltage", false, TBL_BOOSTV, &init->boostv},
{"ti,boost-max-current", false, TBL_BOOSTI, &init->boosti}, {"ti,boost-max-current", false, TBL_BOOSTI, &init->boosti},
{"ti,vinmin-threshold", false, TBL_VINDPM, &init->vindpm},
/* optional properties */ /* optional properties */
{"ti,thermal-regulation-threshold", true, TBL_TREG, &init->treg} {"ti,thermal-regulation-threshold", true, TBL_TREG, &init->treg}
...@@ -830,6 +837,7 @@ static int bq25890_fw_probe(struct bq25890_device *bq) ...@@ -830,6 +837,7 @@ static int bq25890_fw_probe(struct bq25890_device *bq)
init->ilim_en = device_property_read_bool(bq->dev, "ti,use-ilim-pin"); init->ilim_en = device_property_read_bool(bq->dev, "ti,use-ilim-pin");
init->boostf = device_property_read_bool(bq->dev, "ti,boost-low-freq"); init->boostf = device_property_read_bool(bq->dev, "ti,boost-low-freq");
init->force_vindpm = device_property_read_bool(bq->dev, "ti,use-vinmin-threshold");
return 0; return 0;
} }
......
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