redonkable/alistair23-linux
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tmio_mmc / PM: Use PM QoS latency constraint

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Make tmio_mmc 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>
This commit is contained in:
Rafael J. Wysocki 2012-03-13 01:01:51 +01:00
parent 85dc0b8a40
commit c419e611c3
1 changed files with 5 additions and 0 deletions
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5
drivers/mmc/host/tmio_mmc_pio.c
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@ -39,6 +39,7 @@
#include <linux/module.h>
#include <linux/pagemap.h>
#include <linux/platform_device.h>
#include <linux/pm_qos.h>
#include <linux/pm_runtime.h>
#include <linux/scatterlist.h>
#include <linux/workqueue.h>
@ -951,6 +952,8 @@ int __devinit tmio_mmc_host_probe(struct tmio_mmc_host **host,
mmc_add_host(mmc);
dev_pm_qos_expose_latency_limit(&pdev->dev, 100);
/* Unmask the IRQs we want to know about */
if (!_host->chan_rx)
irq_mask |= TMIO_MASK_READOP;
@ -989,6 +992,8 @@ void tmio_mmc_host_remove(struct tmio_mmc_host *host)
|| host->mmc->caps & MMC_CAP_NONREMOVABLE)
pm_runtime_get_sync(&pdev->dev);
dev_pm_qos_hide_latency_limit(&pdev->dev);
mmc_remove_host(host->mmc);
cancel_work_sync(&host->done);
cancel_delayed_work_sync(&host->delayed_reset_work);