bcm2835-i2s: match period_bytes_max to DMA controller limit

bcm2835-dma supports a maximum transfer length of 64k-4 bytes on
the lite channels. period_bytes_max should reflect this limit.

Signed-off-by: Matthias Reichl <[email protected]>

Author: HiassofT

sound/soc/bcm/bcm2835-i2s.c

@@ -806,7 +806,7 @@ static struct snd_pcm_hardware bcm2835_pcm_hardware = {
 				  SNDRV_PCM_FMTBIT_S24_LE |
 				  SNDRV_PCM_FMTBIT_S32_LE,
 	.period_bytes_min	= 32,
-	.period_bytes_max	= 64 * PAGE_SIZE,
+	.period_bytes_max	= SZ_64K - 4,
 	.periods_min		= 2,
 	.periods_max		= 255,
 	.buffer_bytes_max	= 128 * PAGE_SIZE,