From: Darren Stevens Date: Mon, 23 Jan 2017 19:38:28 +0000 (-0500) Subject: pata_atiixp: Don't use unconnected secondary port on SB600/SB700 X-Git-Tag: v4.14-rc1~1469^2~1 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=5946fdaee4ba449e8fbb5d403e1ed69437f916e8;p=platform%2Fkernel%2Flinux-rpi.git pata_atiixp: Don't use unconnected secondary port on SB600/SB700 The SB600 and SB700 southbridge chips from ATI/AMD only have connections for the primary IDE port. As these chips have unique pci device ID's use these to mark the secondary port as 'dummy' Signed-off-by: Darren Stevens Signed-off-by: Tejun Heo --- diff --git a/drivers/ata/pata_atiixp.c b/drivers/ata/pata_atiixp.c index 49d705c..6c9aa95 100644 --- a/drivers/ata/pata_atiixp.c +++ b/drivers/ata/pata_atiixp.c @@ -278,6 +278,11 @@ static int atiixp_init_one(struct pci_dev *pdev, const struct pci_device_id *id) }; const struct ata_port_info *ppi[] = { &info, &info }; + /* SB600/700 don't have secondary port wired */ + if ((pdev->device == PCI_DEVICE_ID_ATI_IXP600_IDE) || + (pdev->device == PCI_DEVICE_ID_ATI_IXP700_IDE)) + ppi[1] = &ata_dummy_port_info; + return ata_pci_bmdma_init_one(pdev, ppi, &atiixp_sht, NULL, ATA_HOST_PARALLEL_SCAN); }