diff options
| author | Rafael J. Wysocki <rjw@sisk.pl> | 2012-03-13 01:02:15 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rjw@sisk.pl> | 2012-03-13 22:37:29 +0100 |
| commit | efe6a8ad7fc55b350ce968cae4c757d35e986285 (patch) | |
| tree | 6e7f98266e3328dbc164fe3804ced8fa2a1c461e /drivers/mmc | |
| parent | c419e611c3c59c0e48405c279e497c4bf1bf2cd2 (diff) | |
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')
| -rw-r--r-- | drivers/mmc/host/sh_mmcif.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c index f5d8b53be33..a4ad93bf8b4 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); |