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mei: vsc: Prevent timeout error with added delay post-firmware download

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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: 566f5ca976 ("mei: Add transport driver for IVSC device")
Cc: stable@vger.kernel.org # for 6.8+
Signed-off-by: Wentong Wu <wentong.wu@intel.com>
Tested-by: Jason Chen <jason.z.chen@intel.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Link: https://lore.kernel.org/r/20240625081047.4178494-3-wentong.wu@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Wentong Wu 2024-06-25 16:10:44 +08:00 committed by Greg Kroah-Hartman
parent 07de60a46a
commit a9e8fe3819
1 changed files with 2 additions and 2 deletions
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4
drivers/misc/mei/platform-vsc.c
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@ -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))