[ 098/175] ahci_platform: add STRICT_AHCI platform type
From: Greg KH <gregkh@linuxfoundation.org>
Date: 2012-03-30 21:21:53
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3.3-stable review patch. If anyone has any objections, please let me know. ------------------ From: Brian Norris <computersforpeace@gmail.com> commit d408e2b14fba4fa214fa5bc24b7baae8a55e563c upstream. Some platforms need to make use of the AHCI_HFLAG_DELAY_ENGINE flag. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Jeff Garzik <redacted> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- drivers/ata/ahci_platform.c | 11 +++++++++++ 1 file changed, 11 insertions(+)
--- a/drivers/ata/ahci_platform.c
+++ b/drivers/ata/ahci_platform.c@@ -26,6 +26,7 @@ enum ahci_type { AHCI, /* standard platform ahci */ IMX53_AHCI, /* ahci on i.mx53 */ + STRICT_AHCI, /* delayed DMA engine start */ }; static struct platform_device_id ahci_devtype[] = {
@@ -36,6 +37,9 @@ static struct platform_device_id ahci_de .name = "imx53-ahci", .driver_data = IMX53_AHCI, }, { + .name = "strict-ahci", + .driver_data = STRICT_AHCI, + }, { /* sentinel */ } };
@@ -56,6 +60,13 @@ static const struct ata_port_info ahci_p .udma_mask = ATA_UDMA6, .port_ops = &ahci_pmp_retry_srst_ops, }, + [STRICT_AHCI] = { + AHCI_HFLAGS (AHCI_HFLAG_DELAY_ENGINE), + .flags = AHCI_FLAG_COMMON, + .pio_mask = ATA_PIO4, + .udma_mask = ATA_UDMA6, + .port_ops = &ahci_ops, + }, }; static struct scsi_host_template ahci_platform_sht = {