evie/android_kernel_oneplus_msm8998
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msm: mdss: hdmi: fix CEC compliance errors

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Do not retry sending CEC messages from software
as the CEC driver programs the hardware to
retry sending messages in the case of failure and
update software with an interrupt. This is needed
to pass CEC compliance where TE checks for the
max number of message send retries.

Change-Id: I35d4d2b54ced8b98b9681b2df4bf82f03d5f33b1
Signed-off-by: Casey Piper <cpiper@codeaurora.org>
This commit is contained in:
Casey Piper 2015-03-05 14:08:50 -08:00 • committed by David Keitel
parent 91be118736
commit 031ca704fc
1 changed files with 7 additions and 11 deletions
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18
drivers/video/fbdev/msm/mdss_hdmi_cec.c
View file

@ -1,4 +1,4 @@
/* Copyright (c) 2010-2014, The Linux Foundation. All rights reserved.
/* Copyright (c) 2010-2015, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
@ -78,18 +78,18 @@ static void hdmi_cec_dump_msg(struct hdmi_cec_ctrl *cec_ctrl,
DEV_DBG("=================%pS dump start =====================\n",
__builtin_return_address(0));
DEV_DBG("sender_id : %d", msg->sender_id);
DEV_DBG("recvr_id : %d", msg->recvr_id);
DEV_DBG("sender_id : %d\n", msg->sender_id);
DEV_DBG("recvr_id : %d\n", msg->recvr_id);
if (msg->frame_size < 2) {
DEV_DBG("polling message");
DEV_DBG("polling message\n");
spin_unlock_irqrestore(&cec_ctrl->lock, flags);
return;
}
DEV_DBG("opcode : %02x", msg->opcode);
DEV_DBG("opcode : %02x\n", msg->opcode);
for (i = 0; i < msg->frame_size - 2; i++)
DEV_DBG("operand(%2d) : %02x", i + 1, msg->operand[i]);
DEV_DBG("operand(%2d) : %02x\n", i + 1, msg->operand[i]);
DEV_DBG("=================%pS dump end =====================\n",
__builtin_return_address(0));
@ -454,13 +454,9 @@ static void hdmi_cec_msg_recv(struct work_struct *work)
if (cec_ctrl->compliance_response_enabled) {
spin_unlock_irqrestore(&cec_ctrl->lock, flags);
if (hdmi_cec_msg_parser(cec_ctrl, &msg_node->msg) != 0) {
if (hdmi_cec_msg_parser(cec_ctrl, &msg_node->msg) != 0)
DEV_ERR("%s: cec_msg_parser fail. Sending abort msg\n",
__func__);
/* reason = "Unrecognized opcode" */
hdmi_cec_send_abort_opcode(cec_ctrl,
&msg_node->msg, 0x0);
}
kfree(msg_node);
} else {
list_add_tail(&msg_node->list, &cec_ctrl->msg_head);