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| author | Hauke Mehrtens <hauke@hauke-m.de> | 2012-07-25 23:08:54 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-07-26 12:46:54 -0700 |
| commit | 1f03bf06e4e3b8ed9a69e7fc4cdb1be4c6c6c819 (patch) | |
| tree | ec28dd77c22c394e445e407202f1117f5a2a1c07 | |
| parent | b84382f5141875230b7c55eb29443596fd2d8d53 (diff) | |
| download | linux-1f03bf06e4e3b8ed9a69e7fc4cdb1be4c6c6c819.tar.gz linux-1f03bf06e4e3b8ed9a69e7fc4cdb1be4c6c6c819.tar.bz2 linux-1f03bf06e4e3b8ed9a69e7fc4cdb1be4c6c6c819.zip | |
bcma: fix invalid PMU chip control masks
Commit b9562545ef0b ("bcma: complete workaround for BCMA43224 and
BCM4313") introduced the wrong masks for setting the chip control
registers - the "mask" parameter is inverse.
It should be the mask of bits *not* changed, which is admittedly a bit
non-intuitive.
The incorrect mask not only causes the driver to not work correctly on
the chips affected (eg the BCM43224 on the Macbook Air 4,2) but the
state persists over a soft reset, causing the next boot to not
necessarily see the device correctly.
Reported-and-tested-by: Linus Torvalds <torvalds@linux-foundation.org>
Tested-by: Seth Forshee <seth.forshee@canonical.com>
Cc: Hauke Mehrtens <hauke@hauke-m.de>
Cc: Arend Van Spriel <arend@broadcom.com>
Cc: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Cc: Brett Rudley <brudley@broadcom.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | drivers/bcma/driver_chipcommon_pmu.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/bcma/driver_chipcommon_pmu.c b/drivers/bcma/driver_chipcommon_pmu.c index 44326178db29..c9a4f46c5143 100644 --- a/drivers/bcma/driver_chipcommon_pmu.c +++ b/drivers/bcma/driver_chipcommon_pmu.c @@ -110,7 +110,7 @@ void bcma_pmu_workarounds(struct bcma_drv_cc *cc) /* enable 12 mA drive strenth for 4313 and set chipControl register bit 1 */ bcma_chipco_chipctl_maskset(cc, 0, - BCMA_CCTRL_4313_12MA_LED_DRIVE, + ~BCMA_CCTRL_4313_12MA_LED_DRIVE, BCMA_CCTRL_4313_12MA_LED_DRIVE); break; case BCMA_CHIP_ID_BCM4331: @@ -124,14 +124,14 @@ void bcma_pmu_workarounds(struct bcma_drv_cc *cc) register bit 15 */ if (bus->chipinfo.rev == 0) { bcma_cc_maskset32(cc, BCMA_CC_CHIPCTL, - BCMA_CCTRL_43224_GPIO_TOGGLE, + ~BCMA_CCTRL_43224_GPIO_TOGGLE, BCMA_CCTRL_43224_GPIO_TOGGLE); bcma_chipco_chipctl_maskset(cc, 0, - BCMA_CCTRL_43224A0_12MA_LED_DRIVE, + ~BCMA_CCTRL_43224A0_12MA_LED_DRIVE, BCMA_CCTRL_43224A0_12MA_LED_DRIVE); } else { bcma_chipco_chipctl_maskset(cc, 0, - BCMA_CCTRL_43224B0_12MA_LED_DRIVE, + ~BCMA_CCTRL_43224B0_12MA_LED_DRIVE, BCMA_CCTRL_43224B0_12MA_LED_DRIVE); } break; |