Title: [7749] trunk/drivers/spi/spi_bfin5xx.c: bug [#5647] - check in patch by Eduardo Tagle <[email protected]>
- Revision
- 7749
- Author
- adamliyi
- Date
- 2009-11-02 23:13:11 -0500 (Mon, 02 Nov 2009)
Log Message
bug [#5647] - check in patch by Eduardo Tagle <[email protected]>
When the bus owner unlocks the spi bus, there may be pending messages on the queue from other spi devices. The messages will stay on the queue until a spi device requests another transfer and starts pumping the message queue. This patch schedules messages transfer when spi bus is released.
Modified Paths
Diff
Modified: trunk/drivers/spi/spi_bfin5xx.c (7748 => 7749)
--- trunk/drivers/spi/spi_bfin5xx.c 2009-11-03 03:14:38 UTC (rev 7748)
+++ trunk/drivers/spi/spi_bfin5xx.c 2009-11-03 04:13:11 UTC (rev 7749)
@@ -999,6 +999,11 @@
if (cs == drv_data->locked) {
drv_data->locked = 0;
ret = 0;
+
+ /* kick off transfer of all pending messeages */
+ if (drv_data->running && !drv_data->busy &&
+ !list_empty(&drv_data->queue))
+ queue_work(drv_data->workqueue, &drv_data->pump_messages);
} else
ret = -ENOLCK;
spin_unlock_irqrestore(&drv_data->lock, flags);
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