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>
1 parent a5b0cda
| File | Mode | Size |
|---|---|---|
| include | ||
| .gitignore | -rw-r--r-- | 74 bytes |
| Kconfig | -rw-r--r-- | 2.3 KB |
| Makefile | -rw-r--r-- | 4.1 KB |
| apparmorfs.c | -rw-r--r-- | 65.2 KB |
| audit.c | -rw-r--r-- | 5.3 KB |
| capability.c | -rw-r--r-- | 4.1 KB |
| crypto.c | -rw-r--r-- | 2.3 KB |
| domain.c | -rw-r--r-- | 38.5 KB |
| file.c | -rw-r--r-- | 19.7 KB |
| ipc.c | -rw-r--r-- | 6.0 KB |
| label.c | -rw-r--r-- | 50.4 KB |
| lib.c | -rw-r--r-- | 12.9 KB |
| lsm.c | -rw-r--r-- | 48.9 KB |
| match.c | -rw-r--r-- | 18.4 KB |
| mount.c | -rw-r--r-- | 18.3 KB |
| net.c | -rw-r--r-- | 5.5 KB |
| nulldfa.in | -rw-r--r-- | 6.8 KB |
| path.c | -rw-r--r-- | 6.0 KB |
| policy.c | -rw-r--r-- | 31.5 KB |
| policy_ns.c | -rw-r--r-- | 9.7 KB |
| policy_unpack.c | -rw-r--r-- | 28.6 KB |
| procattr.c | -rw-r--r-- | 3.5 KB |
| resource.c | -rw-r--r-- | 5.0 KB |
| secid.c | -rw-r--r-- | 3.4 KB |
| stacksplitdfa.in | -rw-r--r-- | 7.3 KB |
| task.c | -rw-r--r-- | 4.2 KB |
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