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authorClemens Ladisch <clemens@ladisch.de>2005-09-05 10:36:27 +0200
committerJaroslav Kysela <perex@suse.cz>2005-09-12 10:41:21 +0200
commitdb67319ac29d2f35ece30bce6a9b611afd6b600f (patch)
treee7782998fbb3cdc1e6721ec861949092d97234cd /sound/isa/opti9xx/opti92x-ad1848.c
parent4d23359b7ec8b03da2154df935af7d625075f6cf (diff)
[ALSA] opti93x: optimize a register access
Opti9xx drivers When clearing some bits in a register, don't bother with the bits that won't be changed anyway. Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Diffstat (limited to 'sound/isa/opti9xx/opti92x-ad1848.c')
-rw-r--r--sound/isa/opti9xx/opti92x-ad1848.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/sound/isa/opti9xx/opti92x-ad1848.c b/sound/isa/opti9xx/opti92x-ad1848.c
index 411a702d85ba..782750d62ebb 100644
--- a/sound/isa/opti9xx/opti92x-ad1848.c
+++ b/sound/isa/opti9xx/opti92x-ad1848.c
@@ -1038,8 +1038,7 @@ static int snd_opti93x_capture_prepare(snd_pcm_substream_t *substream)
chip->c_dma_size = size;
snd_opti93x_out_mask(chip, OPTi93X_IFACE_CONF,
- OPTi93X_CAPTURE_ENABLE | OPTi93X_CAPTURE_PIO,
- (unsigned char)~(OPTi93X_CAPTURE_ENABLE | OPTi93X_CAPTURE_PIO));
+ OPTi93X_CAPTURE_ENABLE | OPTi93X_CAPTURE_PIO, 0);
snd_dma_program(chip->dma2, runtime->dma_addr, size,
DMA_MODE_READ | DMA_AUTOINIT);