From: Wentong Wu <wentong.wu@xxxxxxxxx>
commit a9e8fe38195ae6f8e5b32907a17b397ff3ce3e48 upstream.
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: 566f5ca97680 ("mei: Add transport driver for IVSC device")
Cc: stable@xxxxxxxxxxxxxxx # for 6.8+
Signed-off-by: Wentong Wu <wentong.wu@xxxxxxxxx>
Tested-by: Jason Chen <jason.z.chen@xxxxxxxxx>
Acked-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20240625081047.4178494-3-wentong.wu@xxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/misc/mei/platform-vsc.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/misc/mei/platform-vsc.c
+++ b/drivers/misc/mei/platform-vsc.c
@@ -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))
Patches currently in stable-queue which might be from wentong.wu@xxxxxxxxx are
queue-6.9/mei-vsc-enhance-ivsc-chipset-stability-during-warm-reboot.patch
queue-6.9/mei-vsc-prevent-timeout-error-with-added-delay-post-firmware-download.patch
queue-6.9/mei-vsc-utilize-the-appropriate-byte-order-swap-function.patch
