commit c86872af78564d1c1c42b8fdbc011e346871dca5 added a workaround to
skip the negociation for the handoff of the EHCI controller, on ExoPC.
Refactor the DMI detection code to use standard dmi_check_system function.
Then add another variant of the Pegatron tablet used by Ordissimo, and
apparently RM Slate 100.
Signed-off-by: Anisse Astier <anisse@xxxxxxxxx>
---
Hi,
This should fix the handoff problems on other Lucid tablet variants, too.
I don't know if WeTab/Joojoo are affected or not, I'll let that for someone
else to find out. It should be trivial to add them to the list.
Regards,
Anisse
---
drivers/usb/host/pci-quirks.c | 28 +++++++++++++++++++++-------
1 files changed, 21 insertions(+), 7 deletions(-)
diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c
index f16c59d..78629ea 100644
--- a/drivers/usb/host/pci-quirks.c
+++ b/drivers/usb/host/pci-quirks.c
@@ -504,20 +504,34 @@ static void __devinit quirk_usb_handoff_ohci(struct pci_dev *pdev)
iounmap(base);
}
+static const struct dmi_system_id __initconst ehci_dmi_nohandoff_table[] = {
+ {
+ /* Pegatron Lucid (ExoPC) */
+ .matches = {
+ DMI_MATCH(DMI_BOARD_NAME, "EXOPG06411"),
+ DMI_MATCH(DMI_BIOS_VERSION, "Lucid-CE-133"),
+ },
+ },
+ {
+ /* Pegatron Lucid (Ordissimo AIRIS) */
+ .matches = {
+ DMI_MATCH(DMI_BOARD_NAME, "M11JB"),
+ DMI_MATCH(DMI_BIOS_VERSION, "Lucid-GE-133"),
+ },
+ },
+ { }
+};
+
static void __devinit ehci_bios_handoff(struct pci_dev *pdev,
void __iomem *op_reg_base,
u32 cap, u8 offset)
{
int try_handoff = 1, tried_handoff = 0;
- /* The Pegatron Lucid (ExoPC) tablet sporadically waits for 90
- * seconds trying the handoff on its unused controller. Skip
- * it. */
+ /* The Pegatron Lucid tablet sporadically waits for 98 seconds trying
+ * the handoff on its unused controller. Skip it. */
if (pdev->vendor == 0x8086 && pdev->device == 0x283a) {
- const char *dmi_bn = dmi_get_system_info(DMI_BOARD_NAME);
- const char *dmi_bv = dmi_get_system_info(DMI_BIOS_VERSION);
- if (dmi_bn && !strcmp(dmi_bn, "EXOPG06411") &&
- dmi_bv && !strcmp(dmi_bv, "Lucid-CE-133"))
+ if (dmi_check_system(ehci_dmi_nohandoff_table))
try_handoff = 0;
}
--
1.7.5.3
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