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authorArend van Spriel <arend@broadcom.com>2015-03-18 13:25:21 +0100
committerKalle Valo <kvalo@codeaurora.org>2015-03-20 09:03:23 +0200
commit063d51776bd60ebf2587682eb394851c792e58d9 (patch)
tree60a976145fdb3fffe5138f239fa09a13377e4bdd
parentbb408cc78401c53842e17b24b6433c122629f21f (diff)
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>
-rw-r--r--drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
index 43995308307d..9667b6aabc00 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
@@ -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);