> BD71837 and BD71847 is PMIC intended for powering single-core, > dual-core, and quad-core SoC’s such as NXP-i.MX 8M. BD71847 > is used for example on NXP imx8mm EVK. > > Add regulator driver for ROHM BD71837 and BD71847 PMICs. > BD71837 contains 8 bucks and 7 LDOS. BD71847 is reduced > version containing 6 bucks and 6 LDOs. Voltages for DVS > bucks (1-4 on BD71837, 1 and 2 on BD71847) can be adjusted > when regulators are enabled. For other bucks and LDOs we may > have over- or undershooting if voltage is adjusted when > regulator is enabled. Thus this is prevented by default. > > BD718x7 has a quirk which may leave power output disabled > after reset if enable/disable state was controlled by SW. > Thus the SW control is only allowed for BD71837 bucks > 3 and 4 by default. The impact of this limitation must be > evaluated board-by board and restrictions may need to be > modified. (Linux driver get's these limitations from DT and we > may want to implement same on u-Boot driver). > > Signed-off-by: Matti Vaittinen <matti.vaitti...@fi.rohmeurope.com> > --- > Changelog v3 => v4: > - prefer u8 over uint8_t > - prefer types with natural alignment over u8 on function arguments > - remove inclusion of errno.h from drivers/power/regulator/bd71837.c > > drivers/power/pmic/bd71837.c | 32 +- > drivers/power/regulator/Kconfig | 17 ++ > drivers/power/regulator/Makefile | 1 + > drivers/power/regulator/bd71837.c | 468 ++++++++++++++++++++++++++++++ > include/power/bd71837.h | 147 ++++++---- > 5 files changed, 607 insertions(+), 58 deletions(-) > create mode 100644 drivers/power/regulator/bd71837.c
Reviewed-by: Simon Glass <s...@chromium.org> _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
