kernel/drivers/gpu/drm/gma500, branch linux-4.1.y

drm/gma500: remove helper function

2018-03-04T15:28:33Z

[ Upstream commit db9b60400f9253c25ae639797df2d0ff7a35d9d8 ] We were getting build warning about: drivers/gpu/drm/gma500/mdfld_dsi_output.c:407:2: warning: initialization from incompatible pointer type The callback to dpms was pointing to a helper function which had a return type of void, whereas the callback should point to a function which has a return type of int. On closer look it turned out that we do not need the helper function since if we call drm_helper_connector_dpms() directly, the first check that drm_helper_connector_dpms() does is: if (mode == connector->dpms) Signed-off-by: Sudip Mukherjee Link: http://patchwork.freedesktop.org/patch/msgid/1454393155-13142-1-git-send-email-sudipm.mukherjee@gmail.com Acked-by: Patrik Jakobsson Signed-off-by: Daniel Vetter Signed-off-by: Sasha Levin

drm/gma500: Sanity-check pipe index

2018-03-04T15:28:32Z

[ Upstream commit 4f250706211cdb949f7580d4fe4dd1fd646de693 ] If the DSI output isn't connected, then mdfld_dsi_encoder_get_pipe() will return -1. The mdfld_dsi_dp_mode_set() function doesn't properly check for this condition and causes the following compiler warnings: CC drivers/gpu/drm/gma500/mdfld_dsi_dpi.o drivers/gpu/drm/gma500/mdfld_dsi_dpi.c: In function ‘mdfld_dsi_dpi_mode_set’: drivers/gpu/drm/gma500/mdfld_dsi_dpi.c:828:35: warning: array subscript is below array bounds [-Warray-bounds] u32 pipeconf = dev_priv->pipeconf[pipe]; ^ drivers/gpu/drm/gma500/mdfld_dsi_dpi.c:829:33: warning: array subscript is below array bounds [-Warray-bounds] u32 dspcntr = dev_priv->dspcntr[pipe]; ^ Fix this by checking for a valid pipe before indexing the pipeconf and dspcntr arrays. Cc: Patrik Jakobsson Reviewed-by: Patrik Jakobsson Signed-off-by: Thierry Reding Signed-off-by: Boris Brezillon Link: http://patchwork.freedesktop.org/patch/msgid/1450178476-26284-2-git-send-email-boris.brezillon@free-electrons.com Signed-off-by: Daniel Vetter Signed-off-by: Sasha Levin

drm/gma500/psb: Actually use VBT mode when it is found

2017-06-08T10:12:47Z

[ Upstream commit 82bc9a42cf854fdf63155759c0aa790bd1f361b0 ] With LVDS we were incorrectly picking the pre-programmed mode instead of the prefered mode provided by VBT. Make sure we pick the VBT mode if one is provided. It is likely that the mode read-out code is still wrong but this patch fixes the immediate problem on most machines. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=78562 Cc: Signed-off-by: Patrik Jakobsson Link: http://patchwork.freedesktop.org/patch/msgid/20170418114332.12183-1-patrik.r.jakobsson@gmail.com Signed-off-by: Sasha Levin

drm/gma500: Add compat ioctl

2017-01-13T01:56:52Z

[ Upstream commit 0a97c81a9717431e6c57ea845b59c3c345edce67 ] Hook up drm_compat_ioctl to support 32-bit userspace on 64-bit kernels. It turns out that N2600 and N2800 comes with 64-bit enabled. We previously assumed there where no such systems out there. Cc: stable@vger.kernel.org Signed-off-by: Patrik Jakobsson Signed-off-by: Sean Paul Link: http://patchwork.freedesktop.org/patch/msgid/20161101144315.2955-1-patrik.r.jakobsson@gmail.com Signed-off-by: Sasha Levin

drm/gma500: Fix possible out of bounds read

2016-06-03T23:15:24Z

[ Upstream commit 7ccca1d5bf69fdd1d3c5fcf84faf1659a6e0ad11 ] Fix possible out of bounds read, by adding missing comma. The code may read pass the end of the dsi_errors array when the most significant bit (bit #31) in the intr_stat register is set. This bug has been detected using CppCheck (static analysis tool). Cc: stable@vger.kernel.org Signed-off-by: Itai Handler Signed-off-by: Patrik Jakobsson Signed-off-by: Sasha Levin

drm/gma500: Use correct unref in the gem bo create function

2016-04-12T02:44:21Z

[ Upstream commit d3e376f52d095103ca51dbda4d6ff8aaf488f98f ] This is called without dev->struct_mutex held, we need to use the _unlocked variant. Never caught in the wild since you'd need an evil userspace which races a gem_close ioctl call with the in-progress open. Cc: Patrik Jakobsson Acked-by: Patrik Jakobsson Signed-off-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/1448271183-20523-17-git-send-email-daniel.vetter@ffwll.ch Signed-off-by: Sasha Levin

drm/gma500: constify all struct drm_*_helper funcs pointers

2015-04-07T15:06:41Z

They are not to be modified. Generated using the semantic patch: @@ @@ ( const struct drm_crtc_helper_funcs * | - struct drm_crtc_helper_funcs * + const struct drm_crtc_helper_funcs * ) @@ @@ ( const struct drm_encoder_helper_funcs * | - struct drm_encoder_helper_funcs * + const struct drm_encoder_helper_funcs * ) @@ @@ ( const struct drm_connector_helper_funcs * | - struct drm_connector_helper_funcs * + const struct drm_connector_helper_funcs * ) @@ @@ ( const struct drm_plane_helper_funcs * | - struct drm_plane_helper_funcs * + const struct drm_plane_helper_funcs * ) Signed-off-by: Jani Nikula Reviewed-by: Patrik Jakobsson Signed-off-by: Daniel Vetter

drm/fb-helper: Propagate errors from initial config failure

2015-01-21T13:57:03Z

Make drm_fb_helper_initial_config() return an int rather than a bool so that the error can be properly propagated. While at it, update drivers to propagate errors further rather than just ignore them. v2: - cirrus: No cleanup is required, the top-level cirrus_driver_load() will do it as part of cirrus_driver_unload() in its cleanup path. Reported-by: Fengguang Wu Cc: David Airlie Cc: Daniel Vetter Cc: Patrik Jakobsson Cc: Rob Clark Cc: Tomi Valkeinen Cc: Alex Deucher Cc: Christian König Cc: Ben Skeggs Signed-off-by: Thierry Reding Reviewed-by: Alex Deucher Reviewed-by: Patrik Jakobsson Reviewed-by: Christian König [danvet: Squash in simplification patch from kbuild.] Signed-off-by: Daniel Vetter

drm/gma500: add support for atom e6xx lpc lvds i2c

2014-12-02T03:42:49Z

add gpio bitbanging i2c adapter on LPC device of atom e6xx gpu chipset to access lvds EDID tested on SECO QuadMo747-E6xx-EXTREME Qseven platform Reviewed-by: Patrik Jakobsson Signed-off-by: Jan Safrata Signed-off-by: Dave Airlie

Merge tag 'drm/fixes/for-3.19-rc1' of git://people.freedesktop.org/~tagr/linux into drm-next

2014-11-14T23:37:20Z

drm: Miscellaneous fixes for v3.19-rc1 This is a small collection of fixes that I've been carrying around for a while now. Many of these have been posted and reviewed or acked. The few that haven't I deemed too trivial to bother. * tag 'drm/fixes/for-3.19-rc1' of git://people.freedesktop.org/~tagr/linux: video/hdmi: Relicense header under MIT license drm/gma500: mdfld: Reuse video/mipi_display.h drm: Make drm_mode_create_tv_properties() signature consistent drm: Implement drm_get_pci_dev() dummy for !PCI drm/prime: Use unsigned type for number of pages drm/gem: Fix typo in kerneldoc drm: Use const data when creating blob properties drm: Use size_t for blob property sizes