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OMAP: DSS2: DSI: Add error IRQ mask for DSI complexIO

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The code presumed that all ComplexIO interrupts are errors. This is not
the case. This patch adds proper error mask for CIO interrupt handling.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
This commit is contained in:
Tomi Valkeinen 2010-05-10 14:35:33 +03:00
parent fa15c79b9a
commit bbecb50b5f
1 changed files with 16 additions and 7 deletions
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23
drivers/video/omap2/dss/dsi.c
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@ -165,6 +165,14 @@ struct dsi_reg { u16 idx; };
#define DSI_CIO_IRQ_ERRCONTENTIONLP1_3 (1 << 25)
#define DSI_CIO_IRQ_ULPSACTIVENOT_ALL0 (1 << 30)
#define DSI_CIO_IRQ_ULPSACTIVENOT_ALL1 (1 << 31)
#define DSI_CIO_IRQ_ERROR_MASK \
(DSI_CIO_IRQ_ERRSYNCESC1 | DSI_CIO_IRQ_ERRSYNCESC2 | \
DSI_CIO_IRQ_ERRSYNCESC3 | DSI_CIO_IRQ_ERRESC1 | DSI_CIO_IRQ_ERRESC2 | \
DSI_CIO_IRQ_ERRESC3 | DSI_CIO_IRQ_ERRCONTROL1 | \
DSI_CIO_IRQ_ERRCONTROL2 | DSI_CIO_IRQ_ERRCONTROL3 | \
DSI_CIO_IRQ_ERRCONTENTIONLP0_1 | DSI_CIO_IRQ_ERRCONTENTIONLP1_1 | \
DSI_CIO_IRQ_ERRCONTENTIONLP0_2 | DSI_CIO_IRQ_ERRCONTENTIONLP1_2 | \
DSI_CIO_IRQ_ERRCONTENTIONLP0_3 | DSI_CIO_IRQ_ERRCONTENTIONLP1_3)
#define DSI_DT_DCS_SHORT_WRITE_0 0x05
#define DSI_DT_DCS_SHORT_WRITE_1 0x15
@ -542,8 +550,12 @@ void dsi_irq_handler(void)
/* flush posted write */
dsi_read_reg(DSI_COMPLEXIO_IRQ_STATUS);
DSSERR("DSI CIO error, cio irqstatus %x\n", ciostatus);
print_irq_status_cio(ciostatus);
if (ciostatus & DSI_CIO_IRQ_ERROR_MASK) {
DSSERR("DSI CIO error, cio irqstatus %x\n", ciostatus);
print_irq_status_cio(ciostatus);
} else if (debug_irq) {
print_irq_status_cio(ciostatus);
}
}
dsi_write_reg(DSI_IRQSTATUS, irqstatus & ~DSI_IRQ_CHANNEL_MASK);
@ -590,11 +602,8 @@ static void _dsi_initialize_irq(void)
for (i = 0; i < 4; ++i)
dsi_write_reg(DSI_VC_IRQENABLE(i), l);
/* XXX zonda responds incorrectly, causing control error:
Exit from LP-ESC mode to LP11 uses wrong transition states on the
data lines LP0 and LN0. */
dsi_write_reg(DSI_COMPLEXIO_IRQ_ENABLE,
-1 & (~DSI_CIO_IRQ_ERRCONTROL2));
l = DSI_CIO_IRQ_ERROR_MASK;
dsi_write_reg(DSI_COMPLEXIO_IRQ_ENABLE, l);
}
static u32 dsi_get_errors(void)