linux-toradex.git/drivers/gpu/drm/drm_mipi_dsi.c, branch v4.2.1 Linux kernel for Apalis and Colibri modules drm/mipi-dsi: Avoid potential NULL pointer dereference 2015-01-28T07:45:37+00:00 Thierry Reding treding@nvidia.com 2014-12-05T10:46:56+00:00 9b97383b789c1b2a8d4bc54d142a12f9d0a12aa1 The mipi_dsi_packet_create() function dereferences the msg pointer before checking that it's valid. Move the dereference down to where it is required to avoid potentially dereferencing a NULL pointer. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Thierry Reding <treding@nvidia.com> 
The mipi_dsi_packet_create() function dereferences the msg pointer
before checking that it's valid. Move the dereference down to where it
is required to avoid potentially dereferencing a NULL pointer.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
drm/dsi: Do not require .owner field to be set 2014-11-13T12:56:17+00:00 Thierry Reding treding@nvidia.com 2014-11-04T15:09:56+00:00 99035e99310a5e779b0b8f44c7d3f5814fd2ec9c Drivers now no longer need to set the .owner field. It will be automatically set at registration time. Signed-off-by: Thierry Reding <treding@nvidia.com> 
Drivers now no longer need to set the .owner field. It will be
automatically set at registration time.

Signed-off-by: Thierry Reding <treding@nvidia.com>
drm/dsi: Resolve MIPI DSI device from phandle 2014-11-13T12:56:14+00:00 Thierry Reding treding@nvidia.com 2014-08-06T06:53:39+00:00 3ef0592426da2e21bd3a265e9376cddffff931c1 Add a function, of_find_mipi_dsi_device_by_node(), that can be used to resolve a phandle to a MIPI DSI device. Acked-by: Andrzej Hajda <a.hajda@samsung.com> Reviewed-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Thierry Reding <treding@nvidia.com> 
Add a function, of_find_mipi_dsi_device_by_node(), that can be used to
resolve a phandle to a MIPI DSI device.

Acked-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
drm/dsi: Implement DCS set_{column,page}_address commands 2014-11-13T12:56:10+00:00 Thierry Reding treding@nvidia.com 2014-08-05T09:20:25+00:00 3b46d4a0def157e77000e252bf5caae7d3defe1b Provide small convenience wrappers to set the column and page extents of the frame memory accessed by the host processors. Reviewed-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Thierry Reding <treding@nvidia.com> 
Provide small convenience wrappers to set the column and page extents of
the frame memory accessed by the host processors.

Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
drm/dsi: Implement DCS {get,set}_pixel_format commands 2014-11-13T12:56:07+00:00 Thierry Reding treding@nvidia.com 2014-08-05T09:18:46+00:00 5cc0af16fc08cfb749fd0635e5e9187c31826827 Provide small convenience wrappers to query or set the pixel format used by the interface. Reviewed-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Thierry Reding <treding@nvidia.com> 
Provide small convenience wrappers to query or set the pixel format used
by the interface.

Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
drm/dsi: Implement DCS get_power_mode command 2014-11-13T12:56:03+00:00 Thierry Reding treding@nvidia.com 2014-08-05T09:17:06+00:00 3d9a8fcf1c6a9032eb389d3c90323ae980c9d50a Provide a small convenience wrapper that transmits a DCS get_power_mode command. A set of bitmasks for the mode bits is also provided. Acked-by: Andrzej Hajda <a.hajda@samsung.com> Reviewed-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Thierry Reding <treding@nvidia.com> 
Provide a small convenience wrapper that transmits a DCS get_power_mode
command. A set of bitmasks for the mode bits is also provided.

Acked-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
drm/dsi: Implement DCS soft_reset command 2014-11-13T12:56:01+00:00 Thierry Reding treding@nvidia.com 2014-08-05T09:15:15+00:00 2f16b89737e24b729305dcd4a3573c175615aa4c Provide a small convenience wrapper that transmits a DCS soft_reset command. Reviewed-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Thierry Reding <treding@nvidia.com> 
Provide a small convenience wrapper that transmits a DCS soft_reset
command.

Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
drm/dsi: Implement DCS nop command 2014-11-13T12:55:59+00:00 Thierry Reding treding@nvidia.com 2014-08-05T09:14:02+00:00 083d573fd013c9996d7462d39b894d360311d750 Provide a small convenience wrapper that transmits a DCS nop command. Reviewed-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Thierry Reding <treding@nvidia.com> 
Provide a small convenience wrapper that transmits a DCS nop command.

Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
drm/dsi: Add to DocBook documentation 2014-11-13T12:55:57+00:00 Thierry Reding treding@nvidia.com 2014-08-05T08:41:13+00:00 009081e0874d28b504ffa1842f6ddfafd2dd36fc Integrate the MIPI DSI helpers into DocBook and clean up various kerneldoc warnings. Also add a brief DOC section and clarify some aspects of the mipi_dsi_host struct's .transfer() operation. Acked-by: Andrzej Hajda <a.hajda@samsung.com> Reviewed-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Thierry Reding <treding@nvidia.com> 
Integrate the MIPI DSI helpers into DocBook and clean up various
kerneldoc warnings. Also add a brief DOC section and clarify some
aspects of the mipi_dsi_host struct's .transfer() operation.

Acked-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
drm/dsi: Implement some standard DCS commands 2014-11-13T12:55:55+00:00 YoungJun Cho yj44.cho@samsung.com 2014-08-05T08:38:31+00:00 42fe1e755d08b80c8be8eec5120946142950b931 Add helpers for the {enter,exit}_sleep_mode, set_display_{on,off} and set_tear_{on,off} DCS commands. Signed-off-by: YoungJun Cho <yj44.cho@samsung.com> Reviewed-by: Sean Paul <seanpaul@chromium.org> [treding: kerneldoc and other minor cleanup] Signed-off-by: Thierry Reding <treding@nvidia.com> 
Add helpers for the {enter,exit}_sleep_mode, set_display_{on,off} and
set_tear_{on,off} DCS commands.

Signed-off-by: YoungJun Cho <yj44.cho@samsung.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
[treding: kerneldoc and other minor cleanup]
Signed-off-by: Thierry Reding <treding@nvidia.com>