+++ /dev/null
-From 923713b357455cfb9aca2cd3429cb0806a724ed2 Mon Sep 17 00:00:00 2001
-From: Hans de Goede <hdegoede@redhat.com>
-Date: Sun, 26 Mar 2017 13:14:45 +0200
-Subject: mmc: sdhci: Disable runtime pm when the sdio_irq is enabled
-
-From: Hans de Goede <hdegoede@redhat.com>
-
-commit 923713b357455cfb9aca2cd3429cb0806a724ed2 upstream.
-
-SDIO cards may need clock to send the card interrupt to the host.
-
-On a cherrytrail tablet with a RTL8723BS wifi chip, without this patch
-pinging the tablet results in:
-
-PING 192.168.1.14 (192.168.1.14) 56(84) bytes of data.
-64 bytes from 192.168.1.14: icmp_seq=1 ttl=64 time=78.6 ms
-64 bytes from 192.168.1.14: icmp_seq=2 ttl=64 time=1760 ms
-64 bytes from 192.168.1.14: icmp_seq=3 ttl=64 time=753 ms
-64 bytes from 192.168.1.14: icmp_seq=4 ttl=64 time=3.88 ms
-64 bytes from 192.168.1.14: icmp_seq=5 ttl=64 time=795 ms
-64 bytes from 192.168.1.14: icmp_seq=6 ttl=64 time=1841 ms
-64 bytes from 192.168.1.14: icmp_seq=7 ttl=64 time=810 ms
-64 bytes from 192.168.1.14: icmp_seq=8 ttl=64 time=1860 ms
-64 bytes from 192.168.1.14: icmp_seq=9 ttl=64 time=812 ms
-64 bytes from 192.168.1.14: icmp_seq=10 ttl=64 time=48.6 ms
-
-Where as with this patch I get:
-
-PING 192.168.1.14 (192.168.1.14) 56(84) bytes of data.
-64 bytes from 192.168.1.14: icmp_seq=1 ttl=64 time=3.96 ms
-64 bytes from 192.168.1.14: icmp_seq=2 ttl=64 time=1.97 ms
-64 bytes from 192.168.1.14: icmp_seq=3 ttl=64 time=17.2 ms
-64 bytes from 192.168.1.14: icmp_seq=4 ttl=64 time=2.46 ms
-64 bytes from 192.168.1.14: icmp_seq=5 ttl=64 time=2.83 ms
-64 bytes from 192.168.1.14: icmp_seq=6 ttl=64 time=1.40 ms
-64 bytes from 192.168.1.14: icmp_seq=7 ttl=64 time=2.10 ms
-64 bytes from 192.168.1.14: icmp_seq=8 ttl=64 time=1.40 ms
-64 bytes from 192.168.1.14: icmp_seq=9 ttl=64 time=2.04 ms
-64 bytes from 192.168.1.14: icmp_seq=10 ttl=64 time=1.40 ms
-
-Cc: Dong Aisheng <b29396@freescale.com>
-Cc: Ian W MORRISON <ianwmorrison@gmail.com>
-Signed-off-by: Hans de Goede <hdegoede@redhat.com>
-Acked-by: Adrian Hunter <adrian.hunter@intel.com>
-Acked-by: Dong Aisheng <aisheng.dong@nxp.com>
-Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-
----
- drivers/mmc/host/sdhci.c | 6 ++++++
- 1 file changed, 6 insertions(+)
-
---- a/drivers/mmc/host/sdhci.c
-+++ b/drivers/mmc/host/sdhci.c
-@@ -1886,6 +1886,9 @@ static int sdhci_prepare_hs400_tuning(st
- struct sdhci_host *host = mmc_priv(mmc);
- unsigned long flags;
-
-+ if (enable)
-+ pm_runtime_get_noresume(host->mmc->parent);
-+
- spin_lock_irqsave(&host->lock, flags);
- host->flags |= SDHCI_HS400_TUNING;
- spin_unlock_irqrestore(&host->lock, flags);
-@@ -2236,6 +2239,9 @@ static void sdhci_card_event(struct mmc_
- }
-
- spin_unlock_irqrestore(&host->lock, flags);
-+
-+ if (!enable)
-+ pm_runtime_put_noidle(host->mmc->parent);
- }
-
- static const struct mmc_host_ops sdhci_ops = {