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brcmfmac: avoid runtime-pm for sdio host controller 

Several host controllers supporting runtime-pm are causing issues
with our sdio wireless cards because they disable the sdio interrupt
upon going into runtime suspend. This patch avoids that by doing
a pm_runtime_forbid() call during the probe. Tested with Sony Vaio
Duo 13 which uses sdhci-acpi host controller.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Arend van Spriel 2015-03-18 13:25:21 +01:00 committed by Kalle Valo
parent bb408cc784
commit 063d51776b
1 changed files with 3 additions and 1 deletions
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4
drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
View File

@ -29,6 +29,7 @@
#include <linux/mmc/host.h>
#include <linux/platform_device.h>
#include <linux/platform_data/brcmfmac-sdio.h>
#include <linux/pm_runtime.h>
#include <linux/suspend.h>
#include <linux/errno.h>
#include <linux/module.h>
@ -1006,6 +1007,7 @@ static int brcmf_sdiod_remove(struct brcmf_sdio_dev *sdiodev)
sg_free_table(&sdiodev->sgtable);
sdiodev->sbwad = 0;
pm_runtime_allow(sdiodev->func[1]->card->host->parent);
return 0;
}
@ -1074,7 +1076,7 @@ static int brcmf_sdiod_probe(struct brcmf_sdio_dev *sdiodev)
ret = -ENODEV;
goto out;
}
pm_runtime_forbid(host->parent);
out:
if (ret)
brcmf_sdiod_remove(sdiodev);