Piteball/android_kernel_google_msm
1
0
Fork 0
mirror of https://github.com/followmsi/android_kernel_google_msm.git synced 2024-11-06 23:17:41 +00:00
Code Issues Projects Releases Wiki Activity

bcma: add ext PA workaround for BCM4331 and BCM43431

Browse source 
commit 69aaedd3cf upstream.

MacBook Pro models with BCM4331 wireless have been found to have the ext
PA lines disabled after resuming from S3 without external power attach.
This causes them to be unable to transmit. Add a workaround to ensure
that the ext PA lines are enabled on BCM4331. Also extend all handling
of ext PA line muxing to BCM43431 as is done in the Broadcom SDK.

BugLink: http://bugs.launchpad.net/bugs/925577
Cc: Arend van Spriel <arend@broadcom.com>
Cc: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Seth Forshee 2012-06-01 09:13:17 -05:00 committed by Greg Kroah-Hartman
parent 38a3c37777
commit 508cb55ffc
2 changed files with 5 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
drivers/bcma/driver_chipcommon_pmu.c
View file

@ -139,7 +139,9 @@ void bcma_pmu_workarounds(struct bcma_drv_cc *cc)
bcma_chipco_chipctl_maskset(cc, 0, ~0, 0x7);
break;
case 0x4331:
/* BCM4331 workaround is SPROM-related, we put it in sprom.c */
case 43431:
/* Ext PA lines must be enabled for tx on BCM4331 */
bcma_chipco_bcm4331_ext_pa_lines_ctl(cc, true);
break;
case 43224:
if (bus->chipinfo.rev == 0) {

4
drivers/bcma/sprom.c
View file

@ -432,13 +432,13 @@ int bcma_sprom_get(struct bcma_bus *bus)
if (!sprom)
return -ENOMEM;
if (bus->chipinfo.id == 0x4331)
if (bus->chipinfo.id == 0x4331 || bus->chipinfo.id == 43431)
bcma_chipco_bcm4331_ext_pa_lines_ctl(&bus->drv_cc, false);
pr_debug("SPROM offset 0x%x\n", offset);
bcma_sprom_read(bus, offset, sprom);
if (bus->chipinfo.id == 0x4331)
if (bus->chipinfo.id == 0x4331 || bus->chipinfo.id == 43431)
bcma_chipco_bcm4331_ext_pa_lines_ctl(&bus->drv_cc, true);
err = bcma_sprom_valid(sprom);