Commit dc4e9e2a authored by Brian Norris's avatar Brian Norris Committed by Ulf Hansson
Browse files

mmc: sdhci-pci: Set PROBE_PREFER_ASYNCHRONOUS 



This driver often takes on the order of 10ms to start, but in some cases
as much as 190ms. It shouldn't have many cross-device dependencies to
race with, nor racy access to shared state with other drivers, so this
should be a relatively low risk change. We've done similarly with a
variety of other MMC host drivers already.

This driver was pinpointed as part of a survey of top slowest initcalls
(i.e., are built in, and probing synchronously) on a lab of ChromeOS
systems.

Signed-off-by: default avatarBrian Norris <briannorris@chromium.org>
Acked-by: default avatarAdrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20221028155633.1.I6c4bfb31e88fad934e7360242cb662e01612c1bb@changeid


Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent 4fb27869

drivers/mmc/host/sdhci-pci-core.c

+2 −1
Original line number Diff line number Diff line
@@ -2276,7 +2276,8 @@ static struct pci_driver sdhci_driver = { 
	.probe =	sdhci_pci_probe,

	.remove =	sdhci_pci_remove,

	.driver =	{

		.pm =   &sdhci_pci_pm_ops

		.pm =   &sdhci_pci_pm_ops,

		.probe_type = PROBE_PREFER_ASYNCHRONOUS,

	},

};