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| author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2011-08-31 13:00:52 +0200 |
|---|---|---|
| committer | Florian Tobias Schandinat <FlorianSchandinat@gmx.de> | 2011-09-05 16:37:13 +0000 |
| commit | da6cf5125f66ed1810616937777884cea021e66a (patch) | |
| tree | a0d171675594e4a1bca6175dab680c01fdf36a16 /drivers/video/sh_mobile_meram.c | |
| parent | 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 (diff) | |
| download | linux-3.10-da6cf5125f66ed1810616937777884cea021e66a.tar.gz linux-3.10-da6cf5125f66ed1810616937777884cea021e66a.tar.bz2 linux-3.10-da6cf5125f66ed1810616937777884cea021e66a.zip | |
sh_mobile_meram: Reset ICBs at unregistration time
When ICBs are unregistered and later reused they need to be reset to
avoid data corruption. Set the WBF, WF and RF bits to make sure ICBs get
reset properly.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Diffstat (limited to 'drivers/video/sh_mobile_meram.c')
| -rw-r--r-- | drivers/video/sh_mobile_meram.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/video/sh_mobile_meram.c b/drivers/video/sh_mobile_meram.c index f6329709919..4d63490209c 100644 --- a/drivers/video/sh_mobile_meram.c +++ b/drivers/video/sh_mobile_meram.c @@ -373,8 +373,10 @@ static void meram_deinit(struct sh_mobile_meram_priv *priv, struct sh_mobile_meram_icb *icb) { /* disable ICB */ - meram_write_icb(priv->base, icb->cache_icb, MExxCTL, 0); - meram_write_icb(priv->base, icb->marker_icb, MExxCTL, 0); + meram_write_icb(priv->base, icb->cache_icb, MExxCTL, + MExxCTL_WBF | MExxCTL_WF | MExxCTL_RF); + meram_write_icb(priv->base, icb->marker_icb, MExxCTL, + MExxCTL_WBF | MExxCTL_WF | MExxCTL_RF); icb->cache_unit = 0; } |