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Commit db67319a authored by Clemens Ladisch's avatar Clemens Ladisch Committed by Jaroslav Kysela
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[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: default avatarClemens Ladisch <clemens@ladisch.de>
parent 4d23359b

sound/isa/opti9xx/opti92x-ad1848.c

+1 −2
Original line number Diff line number Diff line
@@ -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);