sis5513: don't change UDMA settings when programming PIO (0d3be723) · Commits · 戴 / test

drivers/ide/pci/sis5513.c

+4 −7

Original line number	Diff line number	Diff line
		/*
		* linux/drivers/ide/pci/sis5513.c Version 0.26 Jul 7, 2007
		* linux/drivers/ide/pci/sis5513.c Version 0.27 Jul 14, 2007
		*
		* Copyright (C) 1999-2000 Andre Hedrick <andre@linux-ide.org>
		* Copyright (C) 2002 Lionel Bouton <Lionel.Bouton@inet6.fr>, Maintainer
		@@ -537,6 +537,9 @@ static int sis5513_tune_chipset(ide_drive_t *drive, const u8 speed)
		u32 regdw;
		u8 drive_pci, reg;

		if (speed >= XFER_PIO_0 && speed <= XFER_PIO_4)
		return sis5513_tune_drive(drive, speed - XFER_PIO_0);

		/* See config_art_rwp_pio for drive pci config registers */
		drive_pci = 0x40;
		if (chipset_family >= ATA_133) {
		@@ -601,12 +604,6 @@ static int sis5513_tune_chipset(ide_drive_t *drive, const u8 speed)
		case XFER_SW_DMA_1:
		case XFER_SW_DMA_0:
		break;
		case XFER_PIO_4:
		case XFER_PIO_3:
		case XFER_PIO_2:
		case XFER_PIO_1:
		case XFER_PIO_0:
		return sis5513_tune_drive(drive, speed - XFER_PIO_0);
		default:
		BUG();
		break;