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Groups > linux.kernel > #1500205

[PATCH 5/6] mmc: rtsx_usb_sdmmc: Enable runtime PM autosuspend

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Enable runtime PM autosuspend for the rtsx_usb_sdmmc driver to avoid the
device being runtime suspended and runtime resumed between each request.
Let's use a default timeout of 50ms, to be consistent with other mmc hosts.

Cc: Ritesh Raj Sarraf <rrs@researchut.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
 drivers/mmc/host/rtsx_usb_sdmmc.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/mmc/host/rtsx_usb_sdmmc.c b/drivers/mmc/host/rtsx_usb_sdmmc.c
index 6e9c0f8..dc1abd1 100644
--- a/drivers/mmc/host/rtsx_usb_sdmmc.c
+++ b/drivers/mmc/host/rtsx_usb_sdmmc.c
@@ -1374,6 +1374,8 @@ static int rtsx_usb_sdmmc_drv_probe(struct platform_device *pdev)
 
 	mutex_init(&host->host_mutex);
 	rtsx_usb_init_host(host);
+	pm_runtime_use_autosuspend(&pdev->dev);
+	pm_runtime_set_autosuspend_delay(&pdev->dev, 50);
 	pm_runtime_enable(&pdev->dev);
 
 #ifdef RTSX_USB_USE_LEDS_CLASS
@@ -1428,6 +1430,7 @@ static int rtsx_usb_sdmmc_drv_remove(struct platform_device *pdev)
 
 	mmc_free_host(mmc);
 	pm_runtime_disable(&pdev->dev);
+	pm_runtime_dont_use_autosuspend(&pdev->dev);
 	platform_set_drvdata(pdev, NULL);
 
 	dev_dbg(&(pdev->dev),
-- 
1.9.1

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[PATCH 0/6] mmc/memstick: rtsx_usb: Fix runtime PM issues Ulf Hansson <ulf.hansson@linaro.org> - 2016-10-13 13:40 +0200
  [PATCH 4/6] memstick: rtsx_usb_ms: Manage runtime PM when accessing the device Ulf Hansson <ulf.hansson@linaro.org> - 2016-10-13 13:40 +0200
  [PATCH 1/6] mmc: rtsx_usb_sdmmc: Avoid keeping the device runtime resumed when unused Ulf Hansson <ulf.hansson@linaro.org> - 2016-10-13 13:40 +0200
  [PATCH 2/6] mmc: rtsx_usb_sdmmc: Handle runtime PM while changing the led Ulf Hansson <ulf.hansson@linaro.org> - 2016-10-13 13:40 +0200
  [PATCH 5/6] mmc: rtsx_usb_sdmmc: Enable runtime PM autosuspend Ulf Hansson <ulf.hansson@linaro.org> - 2016-10-13 13:50 +0200
  [PATCH 6/6] mmc: core: Don't power off the card when starting the host Ulf Hansson <ulf.hansson@linaro.org> - 2016-10-13 13:50 +0200
  [PATCH 3/6] memstick: rtsx_usb_ms: Runtime resume the device when polling for cards Ulf Hansson <ulf.hansson@linaro.org> - 2016-10-13 13:50 +0200
  Re: [PATCH 0/6] mmc/memstick: rtsx_usb: Fix runtime PM issues Ulf Hansson <ulf.hansson@linaro.org> - 2016-10-17 16:00 +0200
    Re: [PATCH 0/6] mmc/memstick: rtsx_usb: Fix runtime PM issues Alan Stern <stern@rowland.harvard.edu> - 2016-10-17 18:40 +0200

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