From: "Michał Mirosław" <mirq-linux@rere.qmqm.pl>
To: Sebastian Reichel <sre@kernel.org>
Cc: linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org
Subject: [PATCH 14/14] power: supply: bq25890: support IBAT compensation
Date: Thu, 02 Apr 2020 16:58:36 +0200 [thread overview]
Message-ID: <f70ea4f644d5751e8e254d4c718e964c63cac201.1585838679.git.mirq-linux@rere.qmqm.pl> (raw)
In-Reply-To: <cover.1585838678.git.mirq-linux@rere.qmqm.pl>
Add configuration for compensation of IBAT measuring resistor in series
with the battery.
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
---
drivers/power/supply/bq25890_charger.c | 15 +++++++++++++--
1 file changed, 13 insertions(+), 2 deletions(-)
diff --git a/drivers/power/supply/bq25890_charger.c b/drivers/power/supply/bq25890_charger.c
index a61eab6a4552..ba1562968bec 100644
--- a/drivers/power/supply/bq25890_charger.c
+++ b/drivers/power/supply/bq25890_charger.c
@@ -83,6 +83,8 @@ struct bq25890_init_data {
u8 boostf; /* boost frequency */
u8 ilim_en; /* enable ILIM pin */
u8 treg; /* thermal regulation threshold */
+ u8 rbatcomp; /* IBAT sense resistor value */
+ u8 vclamp; /* IBAT compensation voltage limit */
};
struct bq25890_state {
@@ -258,6 +260,8 @@ enum bq25890_table_ids {
TBL_VREG,
TBL_BOOSTV,
TBL_SYSVMIN,
+ TBL_VBATCOMP,
+ TBL_RBATCOMP,
/* lookup tables */
TBL_TREG,
@@ -299,6 +303,8 @@ static const union {
[TBL_VREG] = { .rt = {3840000, 4608000, 16000} }, /* uV */
[TBL_BOOSTV] = { .rt = {4550000, 5510000, 64000} }, /* uV */
[TBL_SYSVMIN] = { .rt = {3000000, 3700000, 100000} }, /* uV */
+ [TBL_VBATCOMP] ={ .rt = {0, 224000, 32000} }, /* uV */
+ [TBL_RBATCOMP] ={ .rt = {0, 140000, 20000} }, /* uOhm */
/* lookup tables */
[TBL_TREG] = { .lt = {bq25890_treg_tbl, BQ25890_TREG_TBL_SIZE} },
@@ -667,7 +673,9 @@ 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_TREG, bq->init_data.treg}
+ {F_TREG, bq->init_data.treg},
+ {F_BATCMP, bq->init_data.rbatcomp},
+ {F_VCLAMP, bq->init_data.vclamp},
};
ret = bq25890_chip_reset(bq);
@@ -880,11 +888,14 @@ static int bq25890_fw_read_u32_props(struct bq25890_device *bq)
{"ti,boost-max-current", false, TBL_BOOSTI, &init->boosti},
/* optional properties */
- {"ti,thermal-regulation-threshold", true, TBL_TREG, &init->treg}
+ {"ti,thermal-regulation-threshold", true, TBL_TREG, &init->treg},
+ {"ti,ibatcomp-resistance", true, TBL_RBATCOMP, &init->rbatcomp},
+ {"ti,ibatcomp-clamp-voltage", true, TBL_VBATCOMP, &init->vclamp},
};
/* initialize data for optional properties */
init->treg = 3; /* 120 degrees Celsius */
+ init->rbatcomp = init->vclamp = 0; /* IBAT compensation disabled */
for (i = 0; i < ARRAY_SIZE(props); i++) {
ret = device_property_read_u32(bq->dev, props[i].name,
--
2.20.1
prev parent reply other threads:[~2020-04-02 14:58 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-02 14:58 [PATCH 00/14] power: supply: bq25890: fix and extend Michał Mirosław
2020-04-02 14:58 ` [PATCH 02/14] power: supply: bq25890: simplify chip name property getter Michał Mirosław
2020-04-02 14:58 ` [PATCH 01/14] power: supply: bq25890: remove redundant I2C bus check Michał Mirosław
2020-04-02 14:58 ` [PATCH 03/14] power: supply: bq25890: make property table const Michał Mirosław
2020-04-03 19:52 ` kbuild test robot
2020-04-04 3:41 ` kbuild test robot
2020-04-02 14:58 ` [PATCH 04/14] power: supply: bq25890: protect view of the chip's state Michał Mirosław
2020-04-02 14:58 ` [PATCH 05/14] power: supply: bq25890: fix ADC mode configuration Michał Mirosław
2020-04-03 20:29 ` kbuild test robot
2020-04-03 22:14 ` kbuild test robot
2020-04-04 5:14 ` kbuild test robot
2020-04-02 14:58 ` [PATCH 06/14] power: supply: bq25890: update state on property read Michał Mirosław
2020-04-02 14:58 ` [PATCH 07/14] power: supply: bq25890: implement CHARGE_TYPE property Michał Mirosław
2020-04-02 14:58 ` [PATCH 09/14] power: supply: bq25890: implement INPUT_CURRENT_LIMIT property Michał Mirosław
2020-04-02 14:58 ` [PATCH 08/14] power: supply: bq25890: implement PRECHARGE_CURRENT property Michał Mirosław
2020-04-02 14:58 ` [PATCH 11/14] power: supply: bq25890: show measured VBUS Michał Mirosław
2020-04-03 21:06 ` kbuild test robot
2020-04-03 23:04 ` kbuild test robot
2020-04-02 14:58 ` [PATCH 10/14] power: supply: bq25890: use proper CURRENT_NOW property for I_BAT Michał Mirosław
2020-04-02 14:58 ` [PATCH 12/14] power: supply: bq25890: show VSYS as output voltage Michał Mirosław
2020-04-03 21:41 ` kbuild test robot
2020-04-02 14:58 ` [PATCH 13/14] power: supply: bq25890: show VBAT as VOLTAGE_NOW Michał Mirosław
2020-04-02 14:58 ` Michał Mirosław [this message]
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