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| author | Mike Jones <michael-a1.jones@analog.com> | 2020-01-28 20:59:59 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-02-28 17:42:14 +0300 |
| commit | 65f44164b08017d1be12c0654d6d343051c04dc3 (patch) | |
| tree | 48ef15a426777e79973d5ef857c52336648e2590 /fs | |
| parent | 392bf8536ed9d221d2fc137e9d6d35bb0da09b5e (diff) | |
| download | linux-65f44164b08017d1be12c0654d6d343051c04dc3.tar.xz | |
hwmon: (pmbus/ltc2978) Fix PMBus polling of MFR_COMMON definitions.
commit cf2b012c90e74e85d8aea7d67e48868069cfee0c upstream.
Change 21537dc driver PMBus polling of MFR_COMMON from bits 5/4 to
bits 6/5. This fixs a LTC297X family bug where polling always returns
not busy even when the part is busy. This fixes a LTC388X and
LTM467X bug where polling used PEND and NOT_IN_TRANS, and BUSY was
not polled, which can lead to NACKing of commands. LTC388X and
LTM467X modules now poll BUSY and PEND, increasing reliability by
eliminating NACKing of commands.
Signed-off-by: Mike Jones <michael-a1.jones@analog.com>
Link: https://lore.kernel.org/r/1580234400-2829-2-git-send-email-michael-a1.jones@analog.com
Fixes: e04d1ce9bbb49 ("hwmon: (ltc2978) Add polling for chips requiring it")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs')
0 files changed, 0 insertions, 0 deletions