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| author | Mike Jones <[email protected]> | 2020-01-28 17:59:59 +0000 |
|---|---|---|
| committer | Guenter Roeck <[email protected]> | 2020-02-10 02:41:08 +0000 |
| commit | cf2b012c90e74e85d8aea7d67e48868069cfee0c (patch) | |
| tree | 9102d3b258d902477490f3e679db56fae6ed9f63 /drivers/mtd/lpddr/lpddr_cmds.c | |
| parent | Linux 5.6-rc1 (diff) | |
| download | kernel-cf2b012c90e74e85d8aea7d67e48868069cfee0c.tar.gz kernel-cf2b012c90e74e85d8aea7d67e48868069cfee0c.zip | |
hwmon: (pmbus/ltc2978) Fix PMBus polling of MFR_COMMON definitions.
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 <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Fixes: e04d1ce9bbb49 ("hwmon: (ltc2978) Add polling for chips requiring it")
Signed-off-by: Guenter Roeck <[email protected]>
Diffstat (limited to 'drivers/mtd/lpddr/lpddr_cmds.c')
0 files changed, 0 insertions, 0 deletions