Commit a9e8fe38 authored by Wentong Wu's avatar Wentong Wu Committed by Greg Kroah-Hartman
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mei: vsc: Prevent timeout error with added delay post-firmware download 



After completing the firmware download, the firmware requires some
time to become functional. This change introduces additional sleep
time before the first read operation to prevent a confusing timeout
error in vsc_tp_xfer().

Fixes: 566f5ca9 ("mei: Add transport driver for IVSC device")
Cc: stable@vger.kernel.org # for 6.8+
Signed-off-by: default avatarWentong Wu <wentong.wu@intel.com>
Tested-by: default avatarJason Chen <jason.z.chen@intel.com>
Acked-by: default avatarSakari Ailus <sakari.ailus@linux.intel.com>
Link: https://lore.kernel.org/r/20240625081047.4178494-3-wentong.wu@intel.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 07de60a4

drivers/misc/mei/platform-vsc.c

+2 −2
Original line number Diff line number Diff line
@@ -28,8 +28,8 @@ 


#define MEI_VSC_MAX_MSG_SIZE		512



#define MEI_VSC_POLL_DELAY_US		(50 * USEC_PER_MSEC)

#define MEI_VSC_POLL_TIMEOUT_US		(200 * USEC_PER_MSEC)

#define MEI_VSC_POLL_DELAY_US		(100 * USEC_PER_MSEC)

#define MEI_VSC_POLL_TIMEOUT_US		(400 * USEC_PER_MSEC)



#define mei_dev_to_vsc_hw(dev)		((struct mei_vsc_hw *)((dev)->hw))