hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

ehci-pci: disable for Intel MID platforms (update) 

This is a follow up to the previously submitted commit cefa9a31a5 (ehci-pci:
disable for Intel MID platforms).

It includes the following changes:
- table and function are renamed to reflect this is not only about ChipIdea
- ChipIdea PCI driver (ci_hdrc_pci.c) gets the comment about the table in
  ehci-pci.c
- MIPS IDs removed from the list since it was discovered and tested on Intel
  MID platforms

Reviewed-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Andy Shevchenko 2015-02-03 18:08:39 +02:00 committed by Greg Kroah-Hartman
parent b3a54bf9ed
commit 518ca8d932
2 changed files with 13 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/usb/chipidea/ci_hdrc_pci.c
View File

@ -111,6 +111,9 @@ static void ci_hdrc_pci_remove(struct pci_dev *pdev)
* PCI device structure * PCI device structure
* *
* Check "pci.h" for details * Check "pci.h" for details
*
* Note: ehci-pci driver may try to probe the device first. You have to add an
* ID to the bypass_pci_id_table in ehci-pci driver to prevent this.
*/ */
static const struct pci_device_id ci_hdrc_pci_id_table[] = { static const struct pci_device_id ci_hdrc_pci_id_table[] = {
{ {

16
drivers/usb/host/ehci-pci.c
View File

@ -42,18 +42,22 @@ static inline bool is_intel_quark_x1000(struct pci_dev *pdev)
pdev->device == PCI_DEVICE_ID_INTEL_QUARK_X1000_SOC; pdev->device == PCI_DEVICE_ID_INTEL_QUARK_X1000_SOC;
} }
static const struct pci_device_id ci_hdrc_pci_id_table[] = { /*
{ PCI_DEVICE(0x153F, 0x1004), }, * This is the list of PCI IDs for the devices that have EHCI USB class and
{ PCI_DEVICE(0x153F, 0x1006), }, * specific drivers for that. One of the example is a ChipIdea device installed
* on some Intel MID platforms.
*/
static const struct pci_device_id bypass_pci_id_table[] = {
/* ChipIdea on Intel MID platform */
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0811), }, { PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0811), },
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0829), }, { PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0829), },
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe006), }, { PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe006), },
{} {}
}; };
static inline bool is_ci_hdrc_pci(struct pci_dev *pdev) static inline bool is_bypassed_id(struct pci_dev *pdev)
{ {
return !!pci_match_id(ci_hdrc_pci_id_table, pdev); return !!pci_match_id(bypass_pci_id_table, pdev);
} }
/* /*
@ -368,7 +372,7 @@ static const struct ehci_driver_overrides pci_overrides __initconst = {
static int ehci_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) static int ehci_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{ {
if (is_ci_hdrc_pci(pdev)) if (is_bypassed_id(pdev))
return -ENODEV; return -ENODEV;
return usb_hcd_pci_probe(pdev, id); return usb_hcd_pci_probe(pdev, id);
} }