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libata-5.6-2020-02-05 

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Merge tag 'libata-5.6-2020-02-05' of git://git.kernel.dk/linux-block

Pull libata updates from Jens Axboe:

 - Add a Sandisk CF card to supported pata_pcmcia list (Christian)

 - Move pata_arasan_cf away from legacy API (Peter)

 - Ensure ahci DMA/ints are shut down on shutdown (Prabhakar)

* tag 'libata-5.6-2020-02-05' of git://git.kernel.dk/linux-block:
  ata: pata_arasan_cf: Use dma_request_chan() instead dma_request_slave_channel()
  ata: ahci: Add shutdown to freeze hardware resources of ahci
  pata_pcmia: add SanDisk High (>8G) CF card to supported list
This commit is contained in:
Linus Torvalds 2020-02-06 06:11:50 +00:00
parent 4c7d00ccf4 7991901082
commit 0384066381
5 changed files with 34 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/ata/ahci.c
View File

@ -81,6 +81,7 @@ enum board_ids {
static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
static void ahci_remove_one(struct pci_dev *dev);
static void ahci_shutdown_one(struct pci_dev *dev);
static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
unsigned long deadline);
static int ahci_avn_hardreset(struct ata_link *link, unsigned int *class,
@ -606,6 +607,7 @@ static struct pci_driver ahci_pci_driver = {
.id_table = ahci_pci_tbl,
.probe = ahci_init_one,
.remove = ahci_remove_one,
.shutdown = ahci_shutdown_one,
.driver = {
.pm = &ahci_pci_pm_ops,
},
@ -1877,6 +1879,11 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
return 0;
}
static void ahci_shutdown_one(struct pci_dev *pdev)
{
ata_pci_shutdown_one(pdev);
}
static void ahci_remove_one(struct pci_dev *pdev)
{
pm_runtime_get_noresume(&pdev->dev);

21
drivers/ata/libata-core.c
View File

@ -6767,6 +6767,26 @@ void ata_pci_remove_one(struct pci_dev *pdev)
ata_host_detach(host);
}
void ata_pci_shutdown_one(struct pci_dev *pdev)
{
struct ata_host *host = pci_get_drvdata(pdev);
int i;
for (i = 0; i < host->n_ports; i++) {
struct ata_port *ap = host->ports[i];
ap->pflags |= ATA_PFLAG_FROZEN;
/* Disable port interrupts */
if (ap->ops->freeze)
ap->ops->freeze(ap);
/* Stop the port DMA engines */
if (ap->ops->port_stop)
ap->ops->port_stop(ap);
}
}
/* move to PCI subsystem */
int pci_test_config_bits(struct pci_dev *pdev, const struct pci_bits *bits)
{
@ -7387,6 +7407,7 @@ EXPORT_SYMBOL_GPL(ata_timing_cycle2mode);
#ifdef CONFIG_PCI
EXPORT_SYMBOL_GPL(pci_test_config_bits);
EXPORT_SYMBOL_GPL(ata_pci_shutdown_one);
EXPORT_SYMBOL_GPL(ata_pci_remove_one);
#ifdef CONFIG_PM
EXPORT_SYMBOL_GPL(ata_pci_device_do_suspend);

6
drivers/ata/pata_arasan_cf.c
View File

@ -526,9 +526,10 @@ static void data_xfer(struct work_struct *work)
/* request dma channels */
/* dma_request_channel may sleep, so calling from process context */
acdev->dma_chan = dma_request_slave_channel(acdev->host->dev, "data");
if (!acdev->dma_chan) {
acdev->dma_chan = dma_request_chan(acdev->host->dev, "data");
if (IS_ERR(acdev->dma_chan)) {
dev_err(acdev->host->dev, "Unable to get dma_chan\n");
acdev->dma_chan = NULL;
goto chan_request_fail;
}
@ -539,6 +540,7 @@ static void data_xfer(struct work_struct *work)
}
dma_release_channel(acdev->dma_chan);
acdev->dma_chan = NULL;
/* data xferred successfully */
if (!ret) {

1
drivers/ata/pata_pcmcia.c
View File

@ -309,6 +309,7 @@ static const struct pcmcia_device_id pcmcia_devices[] = {
PCMCIA_DEVICE_MANF_CARD(0x0098, 0x0000), /* Toshiba */
PCMCIA_DEVICE_MANF_CARD(0x00a4, 0x002d),
PCMCIA_DEVICE_MANF_CARD(0x00ce, 0x0000), /* Samsung */
PCMCIA_DEVICE_MANF_CARD(0x00f1, 0x0101), /* SanDisk High (>8G) CFA */
PCMCIA_DEVICE_MANF_CARD(0x0319, 0x0000), /* Hitachi */
PCMCIA_DEVICE_MANF_CARD(0x2080, 0x0001),
PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0100), /* Viking CFA */

1
include/linux/libata.h
View File

@ -1226,6 +1226,7 @@ struct pci_bits {
};
extern int pci_test_config_bits(struct pci_dev *pdev, const struct pci_bits *bits);
extern void ata_pci_shutdown_one(struct pci_dev *pdev);
extern void ata_pci_remove_one(struct pci_dev *pdev);
#ifdef CONFIG_PM