linux-stable.git/drivers/gpu/drm/mcde, branch v5.3.17 Linux kernel stable tree drm/mcde: Fix an error handling path in 'mcde_probe()' 2019-12-13T07:49:48+00:00 Christophe JAILLET christophe.jaillet@wanadoo.fr 2019-08-22T21:15:18+00:00 cc12de4c09652b18b949e842d62eda5a2cb1008b [ Upstream commit 15c665bb4637310bc8ce5f357b6a6e5a8aafc7c1 ] If we don't find any matching components, we should go through the error handling path, in order to free some resources. Fixes: ca5be902a87d ("drm/mcde: Fix uninitialized variable") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20190822211518.5578-1-christophe.jaillet@wanadoo.fr Signed-off-by: Sasha Levin <sashal@kernel.org> 
[ Upstream commit 15c665bb4637310bc8ce5f357b6a6e5a8aafc7c1 ]

If we don't find any matching components, we should go through the error
handling path, in order to free some resources.

Fixes: ca5be902a87d ("drm/mcde: Fix uninitialized variable")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190822211518.5578-1-christophe.jaillet@wanadoo.fr
Signed-off-by: Sasha Levin <sashal@kernel.org>
drm/mcde: Fix uninitialized variable 2019-10-07T17:00:54+00:00 Linus Walleij linus.walleij@linaro.org 2019-06-18T11:52:45+00:00 6ee696a950e7a0afd7dbd42483e85e7307951fbc [ Upstream commit ca5be902a87ddccc88144f2dea21b5f0814391ef ] We need to handle the case when of_drm_find_bridge() returns NULL. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20190618115245.13915-1-linus.walleij@linaro.org Signed-off-by: Sasha Levin <sashal@kernel.org> 
[ Upstream commit ca5be902a87ddccc88144f2dea21b5f0814391ef ]

We need to handle the case when of_drm_find_bridge() returns
NULL.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190618115245.13915-1-linus.walleij@linaro.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
drm/mcde: Fix an uninitialized variable 2019-06-13T09:55:23+00:00 Dan Carpenter dan.carpenter@oracle.com 2019-05-29T11:34:58+00:00 bb5ce9a017b851190300bf01b73eb96fc528b6c4 We never set "vblank" to "false". Current versions of GCC will initialize it to zero automatically at certain optimization levels so that's probably why this didn't show up in testing. Fixes: 5fc537bfd000 ("drm/mcde: Add new driver for ST-Ericsson MCDE") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20190529113458.GG19119@mwanda 
We never set "vblank" to "false".

Current versions of GCC will initialize it to zero automatically at
certain optimization levels so that's probably why this didn't show up
in testing.

Fixes: 5fc537bfd000 ("drm/mcde: Add new driver for ST-Ericsson MCDE")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190529113458.GG19119@mwanda
drm/mcde: Fix compile problems 2019-05-26T11:42:23+00:00 Sam Ravnborg sam@ravnborg.org 2019-05-26T11:36:24+00:00 182c58ab2e5b654c2ffd1e959311173cb3bc70b1 Some further compile problems appeared while merging the patch, fix them up. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20190526113624.6702-1-linus.walleij@linaro.org 
Some further compile problems appeared while merging the
patch, fix them up.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190526113624.6702-1-linus.walleij@linaro.org
drm/mcde: Add new driver for ST-Ericsson MCDE 2019-05-24T15:00:13+00:00 Linus Walleij linus.walleij@linaro.org 2019-05-24T09:20:19+00:00 5fc537bfd00033a3f813330175f7f12c25957ebf This adds a new DRM driver for the ST-Ericsson Multi Channel Display Engine, MCDE display controller. This hardware has three independent DSI hosts and can composit and display several memory buffers onto an LCD display. It was developed for several years inside of ST-Ericsson and shipped with a few million mobile phones from Sony and Samsung, as well as with the Snowball community development board. The driver is currently pretty rudimentary but supports a simple framebuffer so we can get penguins and graphics when using these SoCs. Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20190524092019.19355-1-linus.walleij@linaro.org 
This adds a new DRM driver for the ST-Ericsson Multi Channel
Display Engine, MCDE display controller.

This hardware has three independent DSI hosts and can composit
and display several memory buffers onto an LCD display. It
was developed for several years inside of ST-Ericsson and
shipped with a few million mobile phones from Sony and Samsung,
as well as with the Snowball community development board.

The driver is currently pretty rudimentary but supports a
simple framebuffer so we can get penguins and graphics when
using these SoCs.

Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190524092019.19355-1-linus.walleij@linaro.org