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 |
|---|---|---|
| atmel_lcdc.h | -rw-r--r-- | 6.2 KB |
| aty128.h | -rw-r--r-- | 13.3 KB |
| broadsheetfb.h | -rw-r--r-- | 2.1 KB |
| cirrus.h | -rw-r--r-- | 5.7 KB |
| cvisionppc.h | -rw-r--r-- | 1.5 KB |
| da8xx-fb.h | -rw-r--r-- | 2.0 KB |
| display_timing.h | -rw-r--r-- | 3.1 KB |
| edid.h | -rw-r--r-- | 228 bytes |
| gbe.h | -rw-r--r-- | 10.4 KB |
| hecubafb.h | -rw-r--r-- | 1.5 KB |
| ili9320.h | -rw-r--r-- | 5.7 KB |
| imx-ipu-image-convert.h | -rw-r--r-- | 6.5 KB |
| imx-ipu-v3.h | -rw-r--r-- | 16.5 KB |
| kyro.h | -rw-r--r-- | 2.4 KB |
| mach64.h | -rw-r--r-- | 46.9 KB |
| maxinefb.h | -rw-r--r-- | 1.2 KB |
| mbxfb.h | -rw-r--r-- | 2.2 KB |
| metronomefb.h | -rw-r--r-- | 1.5 KB |
| mipi_display.h | -rw-r--r-- | 4.5 KB |
| mmp_disp.h | -rw-r--r-- | 7.0 KB |
| neomagic.h | -rw-r--r-- | 4.9 KB |
| newport.h | -rw-r--r-- | 18.7 KB |
| of_display_timing.h | -rw-r--r-- | 788 bytes |
| of_videomode.h | -rw-r--r-- | 367 bytes |
| omap-panel-data.h | -rw-r--r-- | 1.7 KB |
| omapfb_dss.h | -rw-r--r-- | 23.9 KB |
| omapvrfb.h | -rw-r--r-- | 1.8 KB |
| permedia2.h | -rw-r--r-- | 9.0 KB |
| platform_lcd.h | -rw-r--r-- | 440 bytes |
| pm3fb.h | -rw-r--r-- | 45.3 KB |
| pmag-ba-fb.h | -rw-r--r-- | 1.0 KB |
| pmagb-b-fb.h | -rw-r--r-- | 2.3 KB |
| pxa168fb.h | -rw-r--r-- | 2.5 KB |
| radeon.h | -rw-r--r-- | 109.2 KB |
| s1d13xxxfb.h | -rw-r--r-- | 9.9 KB |
| sa1100fb.h | -rw-r--r-- | 1.3 KB |
| samsung_fimd.h | -rw-r--r-- | 17.0 KB |
| sh_mobile_lcdc.h | -rw-r--r-- | 6.0 KB |
| sisfb.h | -rw-r--r-- | 606 bytes |
| sstfb.h | -rw-r--r-- | 11.0 KB |
| tdfx.h | -rw-r--r-- | 5.3 KB |
| tgafb.h | -rw-r--r-- | 6.9 KB |
| trident.h | -rw-r--r-- | 3.2 KB |
| udlfb.h | -rw-r--r-- | 2.9 KB |
| uvesafb.h | -rw-r--r-- | 2.9 KB |
| vga.h | -rw-r--r-- | 13.7 KB |
| videomode.h | -rw-r--r-- | 1.3 KB |
| w100fb.h | -rw-r--r-- | 3.6 KB |
Computing file changes ...
