kevin/linux
1
Fork 0
Code

regulator: rk808: Add apply_bit for BUCK3 on RK809

Browse Source 
Currently, RK809's BUCK3 regulator is modelled in the driver as a
configurable regulator with 0.5-2.4V voltage range. But the voltage
setting is not actually applied, because when bit 6 of
PMIC_POWER_CONFIG register is set to 0 (default), BUCK3 output voltage
is determined by the external feedback resistor. Fix this, by setting
bit 6 when voltage selection is set. Existing users which do not
specify voltage constraints in their device trees will not be affected
by this change, since no voltage setting is applied in those cases,
and bit 6 is not enabled.

Signed-off-by: Mikhail Rudenko <mike.rudenko@gmail.com>
Link: https://patch.msgid.link/20241017-rk809-dcdc3-v1-1-e3c3de92f39c@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Mikhail Rudenko 2024-10-17 21:37:28 +03:00 committed by Mark Brown
parent 2feb023110
commit 5e53e4a66b
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 2 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/regulator/rk808-regulator.c
View File

@ -1379,6 +1379,8 @@ static const struct regulator_desc rk809_reg[] = {
.n_linear_ranges = ARRAY_SIZE(rk817_buck1_voltage_ranges), .n_linear_ranges = ARRAY_SIZE(rk817_buck1_voltage_ranges),
.vsel_reg = RK817_BUCK3_ON_VSEL_REG, .vsel_reg = RK817_BUCK3_ON_VSEL_REG,
.vsel_mask = RK817_BUCK_VSEL_MASK, .vsel_mask = RK817_BUCK_VSEL_MASK,
.apply_reg = RK817_POWER_CONFIG,
.apply_bit = RK817_BUCK3_FB_RES_INTER,
.enable_reg = RK817_POWER_EN_REG(0), .enable_reg = RK817_POWER_EN_REG(0),
.enable_mask = ENABLE_MASK(RK817_ID_DCDC3), .enable_mask = ENABLE_MASK(RK817_ID_DCDC3),
.enable_val = ENABLE_MASK(RK817_ID_DCDC3), .enable_val = ENABLE_MASK(RK817_ID_DCDC3),