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ipack/devices/ipoctal: rework disable TX when the TX buffer is empty

Depending of the device, it disables the TX mode in different places when there
is no more data to transmit.

This patch reorder them and disable the TX mode in the same place.

Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Samuel Iglesias Gonsalvez 12 år sedan
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9d01b6f064
1 ändrade filer med 7 tillägg och 11 borttagningar
  1. 7 11
      drivers/ipack/devices/ipoctal.c

+ 7 - 11
drivers/ipack/devices/ipoctal.c

@@ -177,10 +177,6 @@ static void ipoctal_irq_tx(struct ipoctal_channel *channel)
 	(*pointer_write)++;
 	*pointer_write = *pointer_write % PAGE_SIZE;
 	channel->nb_bytes--;
-
-	if (channel->nb_bytes == 0 &&
-	    channel->board_id != IPACK1_DEVICE_ID_SBS_OCTAL_485)
-		iowrite8(CR_DISABLE_TX, &channel->regs->w.cr);
 }
 
 static void ipoctal_irq_channel(struct ipoctal_channel *channel)
@@ -196,14 +192,14 @@ static void ipoctal_irq_channel(struct ipoctal_channel *channel)
 	isr = ioread8(&channel->block_regs->r.isr);
 	sr = ioread8(&channel->regs->r.sr);
 
-	/* In case of RS-485, change from TX to RX when finishing TX.
-	 * Half-duplex. */
-	if ((channel->board_id == IPACK1_DEVICE_ID_SBS_OCTAL_485) &&
-	    (sr & SR_TX_EMPTY) && (channel->nb_bytes == 0)) {
-		iowrite8(CR_DISABLE_TX, &channel->regs->w.cr);
-		iowrite8(CR_CMD_NEGATE_RTSN, &channel->regs->w.cr);
-		iowrite8(CR_ENABLE_RX, &channel->regs->w.cr);
+	if ((sr & SR_TX_EMPTY) && (channel->nb_bytes == 0)) {
 		iowrite8(CR_DISABLE_TX, &channel->regs->w.cr);
+		/* In case of RS-485, change from TX to RX when finishing TX.
+		 * Half-duplex. */
+		if (channel->board_id == IPACK1_DEVICE_ID_SBS_OCTAL_485) {
+			iowrite8(CR_CMD_NEGATE_RTSN, &channel->regs->w.cr);
+			iowrite8(CR_ENABLE_RX, &channel->regs->w.cr);
+		}
 	}
 
 	/* RX data */