ath9k_htc: don't use HZ for usb msg timeouts

The usb_*_msg() functions expect a timeout in msecs but are given HZ,
which is ticks per second. If HZ=100, firmware download often times out
when there is modest USB utilization and the device fails to initialize.

Replaces HZ in usb_*_msg timeouts with 1000 msec since HZ is one second
for timeouts in jiffies.

Signed-off-by: Anthony Romano <anthony.romano@coreos.com>
Acked-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

2 files changed, 7 insertions, 4 deletions

diff --git a/drivers/net/wireless/ath/ath9k/hif_usb.c b/drivers/net/wireless/ath/ath9k/hif_usb.c
index e1c338cb9cb5..de2d212f39ec 100644
--- a/drivers/net/wireless/ath/ath9k/hif_usb.c
+++ b/drivers/net/wireless/ath/ath9k/hif_usb.c
@@ -997,7 +997,8 @@ static int ath9k_hif_usb_download_fw(struct hif_device_usb *hif_dev)
                 err = usb_control_msg(hif_dev->udev,
                                       usb_sndctrlpipe(hif_dev->udev, 0),
                                       FIRMWARE_DOWNLOAD, 0x40 | USB_DIR_OUT,
-                                      addr >> 8, 0, buf, transfer, HZ);
+                                      addr >> 8, 0, buf, transfer,
+                                      USB_MSG_TIMEOUT);
                 if (err < 0) {
                         kfree(buf);
                         return err;
@@ -1020,7 +1021,7 @@ static int ath9k_hif_usb_download_fw(struct hif_device_usb *hif_dev)
         err = usb_control_msg(hif_dev->udev, usb_sndctrlpipe(hif_dev->udev, 0),
                               FIRMWARE_DOWNLOAD_COMP,
                               0x40 | USB_DIR_OUT,
-                              firm_offset >> 8, 0, NULL, 0, HZ);
+                              firm_offset >> 8, 0, NULL, 0, USB_MSG_TIMEOUT);
         if (err)
                 return -EIO;
 
@@ -1249,7 +1250,7 @@ static int send_eject_command(struct usb_interface *interface)
 
         dev_info(&udev->dev, "Ejecting storage device...\n");
         r = usb_bulk_msg(udev, usb_sndbulkpipe(udev, bulk_out_ep),
-                cmd, 31, NULL, 2000);
+                cmd, 31, NULL, 2 * USB_MSG_TIMEOUT);
         kfree(cmd);
         if (r)
                 return r;
@@ -1314,7 +1315,7 @@ static void ath9k_hif_usb_reboot(struct usb_device *udev)
                 return;
 
         ret = usb_interrupt_msg(udev, usb_sndintpipe(udev, USB_REG_OUT_PIPE),
-                           buf, 4, NULL, HZ);
+                           buf, 4, NULL, USB_MSG_TIMEOUT);
         if (ret)
                 dev_err(&udev->dev, "ath9k_htc: USB reboot failed\n");
 
diff --git a/drivers/net/wireless/ath/ath9k/hif_usb.h b/drivers/net/wireless/ath/ath9k/hif_usb.h
index 7c2ef7ecd98b..7846916aa01d 100644
--- a/drivers/net/wireless/ath/ath9k/hif_usb.h
+++ b/drivers/net/wireless/ath/ath9k/hif_usb.h
@@ -71,6 +71,8 @@ extern int htc_use_dev_fw;
 #define USB_REG_IN_PIPE   3
 #define USB_REG_OUT_PIPE  4
 
+#define USB_MSG_TIMEOUT 1000 /* (ms) */
+
 #define HIF_USB_MAX_RXPIPES 2
 #define HIF_USB_MAX_TXPIPES 4