xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

mei: revamp writing slot counting

Browse Source 
Since txe use doorbell and not circular buffer
we have to cheat in write slot counting, txe always consume all the
slots upon write. In order for it to work we need to track
slots using mei_hbuf_empty_slots() instead of tracking it in mei layer

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tomas Winkler
2014-02-19 17:35:48 +02:00
committed by Greg Kroah-Hartman
parent 6aae48ff18
commit 9d098192c3
8 changed files with 68 additions and 80 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/misc/mei/hw-me.c
View File

@@ -354,7 +354,7 @@ static int mei_me_write_message(struct mei_device *dev,
dw_cnt = mei_data2slots(length);
if (empty_slots < 0 || dw_cnt > empty_slots)
return -EIO;
return -EMSGSIZE;
mei_me_reg_write(hw, H_CB_WW, *((u32 *) header));