diff options
| author | Corentin Chary <corentincj@iksaif.net> | 2010-01-06 22:07:38 +0100 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2010-01-16 01:49:28 -0500 |
| commit | 10ae4b5663ff3092553bfbd867e7bd474ce6c553 (patch) | |
| tree | 585e928a8ca84111a18682d479abd640a57cebb8 /drivers | |
| parent | da8ba01deb98f3dc0558b1f5a37e64f40bba7904 (diff) | |
| download | kernel_samsung_smdk4412-10ae4b5663ff3092553bfbd867e7bd474ce6c553.zip kernel_samsung_smdk4412-10ae4b5663ff3092553bfbd867e7bd474ce6c553.tar.gz kernel_samsung_smdk4412-10ae4b5663ff3092553bfbd867e7bd474ce6c553.tar.bz2 | |
eeepc-laptop: dmi blacklist to disable pci hotplug code
This is a short term workaround for Eeepc 1005HA.
refs: <http://bugzilla.kernel.org/show_bug.cgi?id=14570>
Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/platform/x86/eeepc-laptop.c | 25 |
1 files changed, 20 insertions, 5 deletions
diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index e954f2a..7fc944a 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -161,6 +161,7 @@ struct eeepc_laptop { u32 cm_supported; /* the control methods supported by this BIOS */ bool cpufv_disabled; + bool hotplug_disabled; u16 event_count[128]; /* count for each event */ struct platform_device *platform_device; @@ -845,6 +846,9 @@ static int eeepc_rfkill_init(struct eeepc_laptop *eeepc) if (result && result != -ENODEV) goto exit; + if (eeepc->hotplug_disabled) + return 0; + result = eeepc_setup_pci_hotplug(eeepc); /* * If we get -EBUSY then something else is handling the PCI hotplug - @@ -1314,6 +1318,10 @@ static void eeepc_dmi_check(struct eeepc_laptop *eeepc) { const char *model; + model = dmi_get_system_info(DMI_PRODUCT_NAME); + if (!model) + return; + /* * Blacklist for setting cpufv (cpu speed). * @@ -1333,17 +1341,24 @@ static void eeepc_dmi_check(struct eeepc_laptop *eeepc) * substring matching. We don't want to affect the "701SD" * and "701SDX" models, because they do support S.H.E. */ - - model = dmi_get_system_info(DMI_PRODUCT_NAME); - if (!model) - return; - if (strcmp(model, "701") == 0 || strcmp(model, "702") == 0) { eeepc->cpufv_disabled = true; pr_info("model %s does not officially support setting cpu " "speed\n", model); pr_info("cpufv disabled to avoid instability\n"); } + + /* + * Blacklist for wlan hotplug + * + * Eeepc 1005HA doesn't work like others models and don't need the + * hotplug code. In fact, current hotplug code seems to unplug another + * device... + */ + if (strcmp(model, "1005HA") == 0) { + eeepc->hotplug_disabled = true; + pr_info("wlan hotplug disabled\n"); + } } static void cmsg_quirk(struct eeepc_laptop *eeepc, int cm, const char *name) |