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disp: hdcp: add driver to handle userspace interactions

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Create a new driver to handle sysfs and topology events that are
related to application/userspace layer interactions for HDCP
functionality. In turn, this will create a clear separation from
the HDCP QSEECOM layer that defines the communication mechanism
between the kernel and the TrustZone layers.

This implementation is based on a snapshot of the msm_hdcp
driver as of this commit 10ffbfa2c7e03c09 ("drm/msm/dp: Snapshot
of DP and supporting files") on kernel 4.19 project.

Change-Id: I834620420b8d6a580f1905a2b3250cf4e5b8f293
Signed-off-by: Tatenda Chipeperekwa <tatendac@codeaurora.org>
This commit is contained in:
Tatenda Chipeperekwa 2020-01-20 18:46:34 -08:00
commit 9b75dd6713
6 changed files with 424 additions and 2 deletions
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17
include/linux/msm_hdcp.h Normal file
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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (c) 2018-2020, The Linux Foundation. All rights reserved.
*/
#ifndef __MSM_HDCP_H
#define __MSM_HDCP_H
#include <linux/types.h>
#include "hdcp/msm_hdmi_hdcp_mgr.h"
void msm_hdcp_notify_topology(struct device *dev);
void msm_hdcp_cache_repeater_topology(struct device *dev,
struct HDCP_V2V1_MSG_TOPOLOGY *tp);
void msm_hdcp_register_cb(struct device *dev, void *ctx,
void (*cb)(void *ctx, u8 data));
#endif /* __MSM_HDCP_H */