Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
BUCK2 has the update_bit setting, but current code does not set update_bit
in pm8607_set_voltage_sel.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Some DVM regulators needs to update apply_bit after setting vsel_reg to
initiate voltage change on the output. This patch adds apply_reg and
apply_bit to struct regulator_desc and update
regulator_set_voltage_sel_regmap() to set apply_bit of apply_reg when
apply_bit is set.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This patch is for new lp8755 regulator dirver and
several unsed variables were deleted and then test was done.
LP8755 :
The LP8755 is a high performance power management unit.It contains
six step-down DC-DC converters which can can be filexibly bundled
together in multiphase converters as required by application.
www.ti.com
Signed-off-by: Daniel Jeong <gshark.jeong@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Regulator drivers with continuous_voltage_range flag set allows not setting
n_voltages. Thus if continuous_voltage_range is set, check the constraint range
instead.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
regulator_list_voltage_table() returns -EINVAL if selector >= n_voltages.
Thus we don't need to check if reg is greater than BUCK_TARGET_VOL_MAX_IDX in
lp3971_dcdc_get_voltage_sel.
BUCK_TARGET_VOL_MIN_IDX and BUCK_TARGET_VOL_MAX_IDX are not used, remove them.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
The function sec_reg_read invokes regmap_read which expects unsigned int *
as the destination address. The existing driver is passing address of local
variable "val" which is u8. This causes the stack corruption and following
dump is observed during probe.
Hence change "val" from u8 to unsigned int.
Unable to handle kernel paging request at virtual address 02410020
pgd = c0004000
[02410020] *pgd=00000000
Internal error: Oops: 80000005 [#1] PREEMPT SMP ARM
Modules linked in:
CPU: 0 Not tainted (3.6.0-00696-g98a28b18-dirty #27)
PC is at 0x2410020
LR is at _regulator_get_voltage+0x3c/0x70
pc : [<02410020>] lr : [<c02395d4>] psr: 20000013
sp : cf839b68 ip : 00000000 fp : cf92d410
r10: 0000cfd0 r9 : c06d9878 r8 : 0000f0a0
r7 : cf839b70 r6 : cf92d400 r5 : 00000011 r4 : cf000000
r3 : 02410020 r2 : 00000000 r1 : 00000048 r0 : cf000000
Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel
...........................
.................................
[<c02395d4>] (_regulator_get_voltage+0x3c/0x70) from [<c023ad80>] (print_constraints+0x50/0x36c)
[<c023ad80>] (print_constraints+0x50/0x36c) from [<c023e504>] (set_machine_constraints+0xe8/0x2b0)
[<c023e504>] (set_machine_constraints+0xe8/0x2b0) from [<c023e9c8>] (regulator_register+0x2fc/0x604)
[<c023e9c8>] (regulator_register+0x2fc/0x604) from [<c049d628>] (s5m8767_pmic_probe+0x688/0x718)
[<c049d628>] (s5m8767_pmic_probe+0x688/0x718) from [<c029915c>] (platform_drv_probe+0x18/0x1c)
[<c029915c>] (platform_drv_probe+0x18/0x1c) from [<c0297dd0>] (really_probe+0x68/0x1f4)
[<c0297dd0>] (really_probe+0x68/0x1f4) from [<c0298070>] (driver_probe_device+0x30/0x48)
Signed-off-by: Inderpal Singh <inderpal.singh@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Paolo Pisati <paolo.pisati@canonical.com>
Tested-by: Robert Nelson <robertcnelson@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Having a linear_min_sel setting means the first linear_min_sel selectors are
invalid. We need to subtract linear_min_sel when use n_voltages to determinate
if regulator can change voltage.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This patch modifies the DVS register read function to select correct DVS1
register. This change is required because the GPIO select pin is 000 in
unintialized state and hence selects the DVS1 register.
Signed-off-by: Amit Daniel Kachhap <amit.daniel@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
If it's possible for gpio_set_value to sleep, we should be using
the *_cansleep call instead. This patch fixes multiple warnings
from gpiolib.
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
The cond-statement of this particular for() loop will always be
true as long as at least one voltage-shifting GPIO is present.
If it wasn't for the break below, we'd be stuck in a forever loop.
This patch inserts the correct cond-statement into the statement.
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Call regulator_[get|set]_voltage_sel_regmap instead of open code.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Ying-Chun Liu <paulliu@debian.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
By setting linear_min_sel to anatop_reg->min_bit_val, we can avoid
adjust the anatop_reg->min_bit_val offset in [set|get]_voltage_sel.
With this chance we can refactor this driver to use
regulator_[get|set]_voltage_sel_regmap.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Ying-Chun Liu <paulliu@debian.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This is required since commit f7df20ec32
"regulator: core: Use list_voltage() to read single voltage regulators",
otherwise _regulator_get_voltage returns rdev->desc->ops->list_voltage(rdev, 0).
The Maxim 1586 controls V3 and V6 voltages, but offers no way of reading back
the set up value. Thus this patch caches the setting when setting new voltage.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
There is only one user calling _rdev_to_offset() function.
Remove _rdev_to_offset() makes the code simpler.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Simply use devm_gpio_request_one() instead.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
To clear the mask bit, setting data argument to be 0 with proper mask setting
for lp8788_update_bits. We don't need the var array here.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Use of_match_ptr and add ifdef CONFIG_OF guard for regulator_gpio_of_match.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
