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OMAP3: McBSP: Lower the maximum buffersize for McBSP1, 3, 4, 5

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Do not allow applications to use the full buffer found on
McBSP1,3,4,5. Using the full buffer in threshold mode causes
the McBSP buffer to run dry, which can be observed as channels
are switching (in reality the channels are shifting).

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Peter Ujfalusi 2009-08-20 16:18:12 +03:00 committed by Mark Brown
parent a1a56f5faa
commit 7e4f943b72
1 changed files with 4 additions and 4 deletions
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8
arch/arm/mach-omap2/mcbsp.c
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@ -129,7 +129,7 @@ static struct omap_mcbsp_platform_data omap34xx_mcbsp_pdata[] = {
.rx_irq = INT_24XX_MCBSP1_IRQ_RX,
.tx_irq = INT_24XX_MCBSP1_IRQ_TX,
.ops = &omap2_mcbsp_ops,
.buffer_size = 0x7F,
.buffer_size = 0x6F,
},
{
.phys_base = OMAP34XX_MCBSP2_BASE,
@ -147,7 +147,7 @@ static struct omap_mcbsp_platform_data omap34xx_mcbsp_pdata[] = {
.rx_irq = INT_24XX_MCBSP3_IRQ_RX,
.tx_irq = INT_24XX_MCBSP3_IRQ_TX,
.ops = &omap2_mcbsp_ops,
.buffer_size = 0x7F,
.buffer_size = 0x6F,
},
{
.phys_base = OMAP34XX_MCBSP4_BASE,
@ -156,7 +156,7 @@ static struct omap_mcbsp_platform_data omap34xx_mcbsp_pdata[] = {
.rx_irq = INT_24XX_MCBSP4_IRQ_RX,
.tx_irq = INT_24XX_MCBSP4_IRQ_TX,
.ops = &omap2_mcbsp_ops,
.buffer_size = 0x7F,
.buffer_size = 0x6F,
},
{
.phys_base = OMAP34XX_MCBSP5_BASE,
@ -165,7 +165,7 @@ static struct omap_mcbsp_platform_data omap34xx_mcbsp_pdata[] = {
.rx_irq = INT_24XX_MCBSP5_IRQ_RX,
.tx_irq = INT_24XX_MCBSP5_IRQ_TX,
.ops = &omap2_mcbsp_ops,
.buffer_size = 0x7F,
.buffer_size = 0x6F,
},
};
#define OMAP34XX_MCBSP_PDATA_SZ ARRAY_SIZE(omap34xx_mcbsp_pdata)