6.9-stable review patch. If anyone has any objections, please let me know.
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From: Wentong Wu wentong.wu@intel.com
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@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 --- 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))