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libertas: check whether bus can do more than polling 

If a sdio host does not support sdio irqs, polling is used
instead. That has an impact on performance. Some functionality
should not be enabled then. This add a variable in
libertas_priv to indicate that.

Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Andreas Kemnade 2016-01-30 18:01:52 +01:00 committed by Kalle Valo
parent 0a7701b4de
commit fae4f9f78a
3 changed files with 3 additions and 1 deletions
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1
drivers/net/wireless/marvell/libertas/dev.h
View File

@ -99,6 +99,7 @@ struct lbs_private {
/* Hardware access */
void *card;
bool iface_running;
u8 is_polling; /* host has to poll the card irq */
u8 fw_ready;
u8 surpriseremoved;
u8 setup_fw_on_resume;

2
drivers/net/wireless/marvell/libertas/if_sdio.c
View File

@ -1267,7 +1267,7 @@ static int if_sdio_probe(struct sdio_func *func,
priv->reset_card = if_sdio_reset_card;
priv->power_save = if_sdio_power_save;
priv->power_restore = if_sdio_power_restore;
priv->is_polling = !(func->card->host->caps & MMC_CAP_SDIO_IRQ);
ret = if_sdio_power_on(card);
if (ret)
goto err_activate_card;

1
drivers/net/wireless/marvell/libertas/if_usb.c
View File

@ -267,6 +267,7 @@ static int if_usb_probe(struct usb_interface *intf,
priv->enter_deep_sleep = NULL;
priv->exit_deep_sleep = NULL;
priv->reset_deep_sleep_wakeup = NULL;
priv->is_polling = false;
#ifdef CONFIG_OLPC
if (machine_is_olpc())
priv->reset_card = if_usb_reset_olpc_card;