ide: add struct ide_dma_ops (take 3)

Add struct ide_dma_ops and convert core code + drivers to use it.

While at it:

* Drop "ide_" prefix from ->ide_dma_end and ->ide_dma_test_irq methods.

* Drop "ide_" "infixes" from DMA methods.

* au1xxx-ide.c:
  - use auide_dma_{test_irq,end}() directly in auide_dma_timeout()

* pdc202xx_old.c:
  - drop "old_" "infixes" from DMA methods

* siimage.c:
  - add siimage_dma_test_irq() helper
  - print SATA warning in siimage_init_one()

* Remove no longer needed ->init_hwif implementations.

v2:
* Changes based on review from Sergei:
  - s/siimage_ide_dma_test_irq/siimage_dma_test_irq/
  - s/drive->hwif/hwif/ in idefloppy_pc_intr().
  - fix patch description w.r.t. au1xxx-ide changes
  - fix au1xxx-ide build
  - fix naming for cmd64*_dma_ops
  - drop "ide_" and "old_" infixes
  - s/hpt3xxx_dma_ops/hpt37x_dma_ops/
  - s/hpt370x_dma_ops/hpt370_dma_ops/
  - use correct DMA ops for HPT302/N, HPT371/N and HPT374
  - s/it821x_smart_dma_ops/it821x_pass_through_dma_ops/

v3:
* Two bugs slipped in v2 (noticed by Sergei):
  - use correct DMA ops for HPT374 (for real this time)
  - handle HPT370/HPT370A properly

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 15 insertions, 9 deletions

diff --git a/drivers/ide/arm/icside.c b/drivers/ide/arm/icside.c
index 9118587a0db..adfeed45f4c 100644
--- a/drivers/ide/arm/icside.c
+++ b/drivers/ide/arm/icside.c
@@ -389,17 +389,21 @@ static int icside_dma_init(ide_hwif_t *hwif, const struct ide_port_info *d)
 	hwif->dmatable_cpu	= NULL;
 	hwif->dmatable_dma	= 0;
 
-	hwif->dma_host_set	= icside_dma_host_set;
-	hwif->dma_setup		= icside_dma_setup;
-	hwif->dma_exec_cmd	= icside_dma_exec_cmd;
-	hwif->dma_start		= icside_dma_start;
-	hwif->ide_dma_end	= icside_dma_end;
-	hwif->ide_dma_test_irq	= icside_dma_test_irq;
-	hwif->dma_timeout	= icside_dma_timeout;
-	hwif->dma_lost_irq	= icside_dma_lost_irq;
-
 	return 0;
 }
+
+static struct ide_dma_ops icside_v6_dma_ops = {
+	.dma_host_set		= icside_dma_host_set,
+	.dma_setup		= icside_dma_setup,
+	.dma_exec_cmd		= icside_dma_exec_cmd,
+	.dma_start		= icside_dma_start,
+	.dma_end		= icside_dma_end,
+	.dma_test_irq		= icside_dma_test_irq,
+	.dma_timeout		= icside_dma_timeout,
+	.dma_lost_irq		= icside_dma_lost_irq,
+};
+#else
+#define icside_v6_dma_ops NULL
 #endif
 
 static int icside_dma_off_init(ide_hwif_t *hwif, const struct ide_port_info *d)
@@ -475,6 +479,7 @@ icside_register_v5(struct icside_state *state, struct expansion_card *ec)
 static const struct ide_port_info icside_v6_port_info __initdata = {
 	.init_dma		= icside_dma_off_init,
 	.port_ops		= &icside_v6_no_dma_port_ops,
+	.dma_ops		= &icside_v6_dma_ops,
 	.host_flags		= IDE_HFLAG_SERIALIZE |
 				  IDE_HFLAG_NO_AUTOTUNE,
 	.mwdma_mask		= ATA_MWDMA2,
@@ -550,6 +555,7 @@ icside_register_v6(struct icside_state *state, struct expansion_card *ec)
 	if (ec->dma != NO_DMA && !request_dma(ec->dma, hwif->name)) {
 		d.init_dma = icside_dma_init;
 		d.port_ops = &icside_v6_dma_port_ops;
+		d.dma_ops = NULL;
 	}
 
 	idx[0] = hwif->index;