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Commit 66618bad authored by Kenji Kaneshige's avatar Kenji Kaneshige Committed by Jesse Barnes
Browse files

pciehp: change command polling frequency 



Change command polling frequency to 100Hz from 10Hz in order to reduce
the delay in the common case of a command completing quickly.

Signed-off-by: default avatarKenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: default avatarJesse Barnes <jbarnes@virtuousgeek.org>
parent 820943b6

drivers/pci/hotplug/pciehp_hpc.c

+2 −2
Original line number Original line Diff line number Diff line
@@ -259,8 +259,8 @@ static inline int pcie_poll_cmd(struct controller *ctrl) 
		}

		}

	}

	}

	while (timeout > 1000) {

	while (timeout > 1000) {

		msleep(100);

		msleep(10);

		timeout -= 100;

		timeout -= 10;

		if (!pciehp_readw(ctrl, SLOTSTATUS, &slot_status)) {

		if (!pciehp_readw(ctrl, SLOTSTATUS, &slot_status)) {

			if (slot_status & CMD_COMPLETED) {

			if (slot_status & CMD_COMPLETED) {

				pciehp_writew(ctrl, SLOTSTATUS, CMD_COMPLETED);

				pciehp_writew(ctrl, SLOTSTATUS, CMD_COMPLETED);