Commit 1f03bf06 authored by Hauke Mehrtens's avatar Hauke Mehrtens Committed by Linus Torvalds

bcma: fix invalid PMU chip control masks

Commit b9562545 ("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: default avatarLinus Torvalds <torvalds@linux-foundation.org>
Tested-by: default avatarSeth 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: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent b84382f5
......@@ -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;
......
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