summaryrefslogtreecommitdiffstats
path: root/drivers/mmc/host/sh_mmcif.c
diff options
context:
space:
mode:
authorRafael J. Wysocki <rjw@sisk.pl>2012-03-13 01:02:15 +0100
committerRafael J. Wysocki <rjw@sisk.pl>2012-03-13 22:37:29 +0100
commitefe6a8ad7fc55b350ce968cae4c757d35e986285 (patch)
tree6e7f98266e3328dbc164fe3804ced8fa2a1c461e /drivers/mmc/host/sh_mmcif.c
parentc419e611c3c59c0e48405c279e497c4bf1bf2cd2 (diff)
downloadlinux-efe6a8ad7fc55b350ce968cae4c757d35e986285.tar.gz
linux-efe6a8ad7fc55b350ce968cae4c757d35e986285.tar.bz2
linux-efe6a8ad7fc55b350ce968cae4c757d35e986285.zip
sh_mmcif / PM: Use PM QoS latency constraint
Make sh_mmcif call dev_pm_qos_expose_latency_limit() to expose the PM QoS latency limit to user space and specify the initial value of it as 100 microseconds. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Diffstat (limited to 'drivers/mmc/host/sh_mmcif.c')
-rw-r--r--drivers/mmc/host/sh_mmcif.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c
index f5d8b53be333..a4ad93bf8b41 100644
--- a/drivers/mmc/host/sh_mmcif.c
+++ b/drivers/mmc/host/sh_mmcif.c
@@ -56,6 +56,7 @@
#include <linux/mmc/sh_mmcif.h>
#include <linux/pagemap.h>
#include <linux/platform_device.h>
+#include <linux/pm_qos.h>
#include <linux/pm_runtime.h>
#include <linux/spinlock.h>
#include <linux/module.h>
@@ -1347,6 +1348,8 @@ static int __devinit sh_mmcif_probe(struct platform_device *pdev)
mmc_detect_change(host->mmc, 0);
+ dev_pm_qos_expose_latency_limit(&pdev->dev, 100);
+
dev_info(&pdev->dev, "driver version %s\n", DRIVER_VERSION);
dev_dbg(&pdev->dev, "chip ver H'%04x\n",
sh_mmcif_readl(host->addr, MMCIF_CE_VERSION) & 0x0000ffff);
@@ -1374,6 +1377,8 @@ static int __devexit sh_mmcif_remove(struct platform_device *pdev)
host->dying = true;
pm_runtime_get_sync(&pdev->dev);
+ dev_pm_qos_hide_latency_limit(&pdev->dev);
+
mmc_remove_host(host->mmc);
sh_mmcif_writel(host->addr, MMCIF_CE_INT_MASK, MASK_ALL);