From: root <root@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
Pass through was lacking irq_clear and also had a problem with device
selection when a slave device is present
Signed-off-by: Alan Cox <alan@xxxxxxxxxx>
---
drivers/scsi/pata_it821x.c | 12 +++++++++---
1 files changed, 9 insertions(+), 3 deletions(-)
fba593cdc70481724480df71f1a3136340bf0d95
diff --git a/drivers/scsi/pata_it821x.c b/drivers/scsi/pata_it821x.c
index 8282f78..b0ebf9c 100644
--- a/drivers/scsi/pata_it821x.c
+++ b/drivers/scsi/pata_it821x.c
@@ -80,7 +80,7 @@
#define DRV_NAME "pata_it821x"
-#define DRV_VERSION "0.3.1"
+#define DRV_VERSION "0.3.2"
struct it821x_dev
{
@@ -419,6 +419,7 @@ void it821x_passthru_dev_select(struct a
it821x_program(ap, adev, itdev->pio[adev->devno]);
itdev->last_device = device;
}
+ ata_std_dev_select(ap, device);
}
/**
@@ -483,11 +484,13 @@ static unsigned int it821x_passthru_qc_i
static void it821x_smart_set_mode(struct ata_port *ap)
{
- int dma_enabled;
+ int dma_enabled = 0;
int i;
/* Bits 5 and 6 indicate if DMA is active on master/slave */
- dma_enabled = inb(ap->ioaddr.bmdma_addr + ATA_DMA_CMD);
+ /* It is possible that BMDMA isn't allocated */
+ if (ap->ioaddr.bmdma_addr)
+ dma_enabled = inb(ap->ioaddr.bmdma_addr + ATA_DMA_CMD);
for (i = 0; i < ATA_MAX_DEVICES; i++) {
struct ata_device *dev = &ap->device[i];
@@ -737,7 +740,10 @@ static struct ata_port_operations it821x
.qc_issue = it821x_passthru_qc_issue_prot,
.eng_timeout = ata_eng_timeout,
.data_xfer = ata_pio_data_xfer,
+
+ .irq_clear = ata_bmdma_irq_clear,
.irq_handler = ata_interrupt,
+
.port_start = it821x_port_start,
.port_stop = it821x_port_stop,
.host_stop = ata_host_stop
--
1.2.GIT
-
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