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mei: iamthif: send flow control as a regular client

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Reuse common client mechanism for sending flow control
hbm message. Add new function mei_amthif_read_start
similar to mei_cl_read_start that puts control flow request
onto the control write queue and drop mei_amthif_irq_read function

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
2015-02-10 10:39:39 +02:00
committed by Greg Kroah-Hartman
parent 4e097bc5d5
commit c54bf3ab75
3 changed files with 77 additions and 84 deletions
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25
drivers/misc/mei/interrupt.c
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@@ -43,7 +43,7 @@ void mei_irq_compl_handler(struct mei_device *dev, struct mei_cl_cb *compl_list)
list_for_each_entry_safe(cb, next, &compl_list->list, list) {
cl = cb->cl;
list_del(&cb->list);
list_del_init(&cb->list);
dev_dbg(dev->dev, "completing call back.\n");
if (cl == &dev->iamthif_cl)
@@ -386,11 +386,6 @@ int mei_irq_read_handler(struct mei_device *dev,
if (cl == &dev->iamthif_cl) {
ret = mei_amthif_irq_read_msg(cl, mei_hdr, cmpl_list);
if (ret) {
dev_err(dev->dev, "mei_amthif_irq_read_msg failed = %d\n",
ret);
goto end;
}
} else {
ret = mei_cl_irq_read_msg(cl, mei_hdr, cmpl_list);
}
@@ -448,21 +443,9 @@ int mei_irq_write_handler(struct mei_device *dev, struct mei_cl_cb *cmpl_list)
cl = cb->cl;
cl->status = 0;
list_del(&cb->list);
if (cb->fop_type == MEI_FOP_WRITE &&
cl != &dev->iamthif_cl) {
cl_dbg(dev, cl, "MEI WRITE COMPLETE\n");
cl->writing_state = MEI_WRITE_COMPLETE;
list_add_tail(&cb->list, &cmpl_list->list);
}
if (cl == &dev->iamthif_cl) {
cl_dbg(dev, cl, "check iamthif flow control.\n");
if (dev->iamthif_flow_control_pending) {
ret = mei_amthif_irq_read(dev, &slots);
if (ret)
return ret;
}
}
cl_dbg(dev, cl, "MEI WRITE COMPLETE\n");
cl->writing_state = MEI_WRITE_COMPLETE;
list_move_tail(&cb->list, &cmpl_list->list);
}
if (dev->wd_state == MEI_WD_STOPPING) {