Revision 02fbabd5f4ed182d2c616e49309f5a3efd9ec671 authored by Fabrice Gasnier on 04 March 2020, 08:55:32 UTC, committed by Mark Brown on 04 March 2020, 13:57:28 UTC
There maybe an overshoot, when disabling, then re-enabling vrefbuf too quickly. VREFBUF is used by ADC/DAC on some boards. When re-enabling too quickly, an overshoot on the reference voltage make the conversions inaccurate for a short period of time. - Don't put the VREFBUF in HiZ when disabling, to force an active discharge. - Enforce a 1ms OFF/ON delay Fixes: 0cdbf481e927 ("regulator: Add support for stm32-vrefbuf") Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> Message-Id: <1583312132-20932-1-git-send-email-fabrice.gasnier@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
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File | Mode | Size |
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platform | ||
acbuffer.h | -rw-r--r-- | 8.6 KB |
acconfig.h | -rw-r--r-- | 7.4 KB |
acexcep.h | -rw-r--r-- | 16.8 KB |
acnames.h | -rw-r--r-- | 2.1 KB |
acoutput.h | -rw-r--r-- | 16.4 KB |
acpi.h | -rw-r--r-- | 1.3 KB |
acpi_bus.h | -rw-r--r-- | 19.0 KB |
acpi_drivers.h | -rw-r--r-- | 3.6 KB |
acpi_io.h | -rw-r--r-- | 713 bytes |
acpi_lpat.h | -rw-r--r-- | 1.2 KB |
acpi_numa.h | -rw-r--r-- | 623 bytes |
acpiosxf.h | -rw-r--r-- | 11.3 KB |
acpixf.h | -rw-r--r-- | 30.5 KB |
acrestyp.h | -rw-r--r-- | 18.8 KB |
actbl.h | -rw-r--r-- | 18.3 KB |
actbl1.h | -rw-r--r-- | 40.3 KB |
actbl2.h | -rw-r--r-- | 45.5 KB |
actbl3.h | -rw-r--r-- | 20.9 KB |
actypes.h | -rw-r--r-- | 41.0 KB |
acuuid.h | -rw-r--r-- | 2.4 KB |
apei.h | -rw-r--r-- | 1.3 KB |
battery.h | -rw-r--r-- | 561 bytes |
button.h | -rw-r--r-- | 282 bytes |
cppc_acpi.h | -rw-r--r-- | 3.1 KB |
ghes.h | -rw-r--r-- | 2.9 KB |
hed.h | -rw-r--r-- | 370 bytes |
nfit.h | -rw-r--r-- | 351 bytes |
pcc.h | -rw-r--r-- | 651 bytes |
pdc_intel.h | -rw-r--r-- | 1.0 KB |
processor.h | -rw-r--r-- | 11.4 KB |
reboot.h | -rw-r--r-- | 201 bytes |
video.h | -rw-r--r-- | 2.8 KB |
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