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path: root/drivers/gpu/drm/drm_modes.c
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2017-07-31drm/modes: Fix drm_mode_is_420_only() commentSean Paul1-1/+1
Fixes the following warnings when building docs: ../drivers/gpu/drm/drm_modes.c:1623: warning: No description found for parameter 'display' ../drivers/gpu/drm/drm_modes.c:1623: warning: Excess function parameter 'connector' description in 'drm_mode_is_420_only' Signed-off-by: Sean Paul <seanpaul@chromium.org> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Thierry Reding <treding@nvidia.com> Link: https://patchwork.freedesktop.org/patch/msgid/20170720174746.29100-2-seanpaul@chromium.org
2017-07-26drm: Convert to using %pOF instead of full_nameRob Herring1-2/+2
Now that we have a custom printf format specifier, convert users of full_name to use %pOF instead. This is preparation to remove storing of the full path string for each node. Signed-off-by: Rob Herring <robh@kernel.org> Cc: Russell King <linux@armlinux.org.uk> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Sean Paul <seanpaul@chromium.org> Cc: Inki Dae <inki.dae@samsung.com> Cc: Joonyoung Shim <jy0922.shim@samsung.com> Cc: Seung-Woo Kim <sw0312.kim@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: Kukjin Kim <kgene@kernel.org> Cc: Krzysztof Kozlowski <krzk@kernel.org> Cc: Javier Martinez Canillas <javier@osg.samsung.com> Cc: Xinliang Liu <z.liuxinliang@hisilicon.com> Cc: Rongrong Zou <zourongrong@gmail.com> Cc: Xinwei Kong <kong.kongxinwei@hisilicon.com> Cc: Chen Feng <puck.chen@hisilicon.com> Cc: CK Hu <ck.hu@mediatek.com> Cc: Philipp Zabel <p.zabel@pengutronix.de> Cc: Matthias Brugger <matthias.bgg@gmail.com> Cc: Neil Armstrong <narmstrong@baylibre.com> Cc: Carlo Caione <carlo@caione.org> Cc: Kevin Hilman <khilman@baylibre.com> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Mark Yao <mark.yao@rock-chips.com> Cc: Heiko Stuebner <heiko@sntech.de> Cc: Maxime Ripard <maxime.ripard@free-electrons.com> Cc: Chen-Yu Tsai <wens@csie.org> Cc: Jyri Sarha <jsarha@ti.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: dri-devel@lists.freedesktop.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-samsung-soc@vger.kernel.org Cc: linux-mediatek@lists.infradead.org Cc: linux-amlogic@lists.infradead.org Cc: linux-renesas-soc@vger.kernel.org Cc: linux-rockchip@lists.infradead.org Partially-Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> [seanpaul changed subject prefix and fixed conflict in stm/ltdc.c] Signed-off-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2017-07-14drm: add helper functions for YCBCR420 handlingShashank Sharma1-0/+58
This patch adds helper functions for YCBCR 420 handling. These functions do: - check if a given video mode is YCBCR 420 only mode. - check if a given video mode is YCBCR 420 also mode. V2: Added YCBCR functions as helpers in DRM layer, instead of keeping it in I915 layer. V3: Added handling for YCBCR-420 only modes too. V4: EXPORT_SYMBOL(drm_find_hdmi_output_type) V5: Addressed review comments from Danvet: - %s/drm_find_hdmi_output_type/drm_display_info_hdmi_output_type - %s/drm_can_support_ycbcr_output/drm_display_supports_ycbcr_output - %s/drm_can_support_this_ycbcr_output/ drm_display_supports_this_ycbcr_output - pass drm_display_info instead of drm_connector for consistency - For drm_get_highest_quality_ycbcr_supported doc, move the variable description above, and then the function description. V6: Add only YCBCR420 helpers (Ville) V7: Addressed review comments from Ville - Remove cea_vic_valid() check. - Fix indentation. - Make input parameters to helpers, const. Cc: Ville Syrjala <ville.syrjala@linux.intel.com> Cc: Jose Abreu <Jose.Abreu@synopsys.com> Cc: Daniel Vetter <daniel.vetter@intel.com> Signed-off-by: Shashank Sharma <shashank.sharma@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1499960000-9232-9-git-send-email-shashank.sharma@intel.com [vsyrjala: Fix sparse indentation warn] Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
2017-07-14drm: add helper to validate YCBCR420 modesShashank Sharma1-0/+29
YCBCR420 modes are supported only on HDMI 2.0 capable sources. This patch adds: - A drm helper to validate YCBCR420-only mode on a particular connector. This function will help pruning the YCBCR420-only modes from the connector's modelist. - A bool variable (ycbcr_420_allowed) in the drm connector structure. While handling the EDID from HDMI 2.0 sinks, its important to know if the source is capable of handling YCBCR420 output, so that no YCBCR 420 modes will be listed for sources which can't handle it. A driver should set this variable if it wants to see YCBCR420 modes in the modedb. V5: Introduced the patch in series. V6: Squashed two patches (validate YCBCR420 and add YCBCR420 identifier) V7: Addressed review comments from Vile: - Move this patch before we add 420 modes from EDID. - No need for drm_valid_cea_vic() check, function back to non-static. - Update MODE_STATUS with NO_420 condition. - Introduce y420_vdb_modes variable in this patch Cc: Ville Syrjala <ville.syrjala@linux.intel.com> Signed-off-by: Shashank Sharma <shashank.sharma@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1499960000-9232-6-git-send-email-shashank.sharma@intel.com [vsyrjala: Drop the now bogus EXPORT_SYMBOL(drm_valid_cea_vic)] Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
2017-02-28drm: Rename drm_mode_object_get()Thierry Reding1-1/+1
Subsequent patches will introduce reference counting APIs that are more consistent with similar APIs throughout the Linux kernel. These APIs use the _get() and _put() suffixes and will collide with this existing function. Rename the function to drm_mode_object_add() which is a slightly more accurate description of what it does. Also the kerneldoc for this function gives an indication that it's badly named because it doesn't actually acquire a reference to anything. Reviewed-by: Sean Paul <seanpaul@chromium.org> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Thierry Reding <treding@nvidia.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170228144643.5668-2-thierry.reding@gmail.com
2017-02-01drm: Clean up the 1366x768 fixup codesTakashi Iwai1-6/+2
This is just a cleanup, no functional change. The fixup code for 1366x768 in drm_mode_create_from_cmdline_mode() is basically a copy of the existing code in drm_edid.c. Make the latter code public so that it can be called from the former function. Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: http://patchwork.freedesktop.org/patch/msgid/20170117164329.10551-1-tiwai@suse.de Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> [vsyrjala: include drm_crtc_internal.h to make sparse happy] Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
2017-02-01Merge tag 'drm-misc-next-2017-01-30' of ↵Dave Airlie1-0/+20
git://anongit.freedesktop.org/git/drm-misc into drm-next Another round of -misc stuff: - Noralf debugfs cleanup cleanup (not yet everything, some more driver patches awaiting acks). - More doc work. - edid/infoframe fixes from Ville. - misc 1-patch fixes all over, as usual Noralf needs this for his tinydrm pull request. * tag 'drm-misc-next-2017-01-30' of git://anongit.freedesktop.org/git/drm-misc: (48 commits) drm/vc4: Remove vc4_debugfs_cleanup() dma/fence: Export enable-signaling tracepoint for emission by drivers drm/tilcdc: Remove tilcdc_debugfs_cleanup() drm/tegra: Remove tegra_debugfs_cleanup() drm/sti: Remove drm_debugfs_remove_files() calls drm/radeon: Remove drm_debugfs_remove_files() call drm/omap: Remove omap_debugfs_cleanup() drm/hdlcd: Remove hdlcd_debugfs_cleanup() drm/etnaviv: Remove etnaviv_debugfs_cleanup() drm/etnaviv: allow build with COMPILE_TEST drm/amd/amdgpu: Remove drm_debugfs_remove_files() call drm/prime: Clarify DMA-BUF/GEM Object lifetime drm/ttm: Make sure BOs being swapped out are cacheable drm/atomic: Remove drm_atomic_debugfs_cleanup() drm: drm_minor_register(): Clean up debugfs on failure drm: debugfs: Remove all files automatically on cleanup drm/fourcc: add vivante tiled layout format modifiers drm/edid: Set YQ bits in the AVI infoframe according to CEA-861-F drm/edid: Set AVI infoframe Q even when QS=0 drm/edid: Introduce drm_hdmi_avi_infoframe_quant_range() ...
2017-01-26drm: Silence the compiler for drm_mode_get_hv_timings()Chris Wilson1-2/+1
Since moving drm_crtc_get_hv_timings() into drm_modes.c, the compiler has been able to get smarter and spots that drm_mode_copy() is trying to preserve garbage from the stack. Fixes: 196cd5d3758c ("drm: s/drm_crtc_get_hv_timings/drm_mode_get_hv_timings/") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20170126114409.9115-1-chris@chris-wilson.co.uk
2017-01-26drm: s/drm_crtc_get_hv_timings/drm_mode_get_hv_timings/Daniel Vetter1-0/+21
The function operates on modes, not CRTCs. Also move it into drm_modes.[hc]. Spotted while reviewing CRTC docs. Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170125062657.19270-15-daniel.vetter@ffwll.ch
2017-01-11drm: Fix broken VT switch with video=1366x768 optionTakashi Iwai1-0/+7
I noticed that the VT switch doesn't work any longer with a Dell laptop with 1366x768 eDP when the machine is connected with a DP monitor. It behaves as if VT were switched, but the graphics remain frozen. Actually the keyboard works, so I could switch back to VT7 again. I tried to track down the problem, and encountered a long story until we reach to this error: - The machine is booted with video=1366x768 option (the distro installer seems to add it as default). - Recently, drm_helper_probe_single_connector_modes() deals with cmdline modes, and it tries to create a new mode when no matching mode is found. - The drm_mode_create_from_cmdline_mode() creates a mode based on either CVT of GFT according to the given cmdline mode; in our case, it's 1366x768. - Since both CVT and GFT can't express the width 1366 due to alignment, the resultant mode becomes 1368x768, slightly larger than the given size. - Later on, the atomic commit is performed, and in drm_atomic_check_only(), the size of each plane is checked. - The size check of 1366x768 fails due to the above, and eventually the whole VT switch fails. Back in the history, we've had a manual fix-up of 1368x768 in various places via c09dedb7a50e ("drm/edid: Add a workaround for 1366x768 HD panel"), but they have been all in drm_edid.c at probing the modes from EDID. For addressing the problem above, we need a similar hack to the mode newly created from cmdline, manually adjusting the width when the expected size is 1366 while we get 1368 instead. Fixes: eaf99c749d43 ("drm: Perform cmdline mode parsing during...") Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: http://patchwork.freedesktop.org/patch/msgid/20170109145614.29454-1-tiwai@suse.de Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
2016-11-15Revert "drm: Add aspect ratio parsing in DRM layer"Ville Syrjälä1-31/+0
This reverts commit 6dffd431e2296cda08e7e4f0242e02df1d1698cd. Adding new mode flags willy nilly breaks existing userspace. We need to coordinate this better, potentially with a new client cap that only exposes the aspect ratio flags when userspace is prepared for them (similar to what we do with stereo 3D modes). This also broke things so that we would always send out VIC==0 in the AVI infoframe unless the user specified an aspect ratio via the mode flags. And the automagic RGB full vs. limited range handling was similartly broken as the user mode would never match any CEA mode. Cc: Shashank Sharma <shashank.sharma@intel.com> Cc: Lin, Jia <lin.a.jia@intel.com> Cc: Akashdeep Sharma <akashdeep.sharma@intel.com> Cc: Jim Bride <jim.bride@linux.intel.com> Cc: Jose Abreu <Jose.Abreu@synopsys.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Emil Velikov <emil.l.velikov@gmail.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1478176304-6743-2-git-send-email-ville.syrjala@linux.intel.com
2016-11-15Revert "drm: Add and handle new aspect ratios in DRM layer"Ville Syrjälä1-12/+0
This reverts commit a68362fe3e84fcbedd49939aa200519aa5410135. Adding new mode flags willy nilly breaks existing userspace. We need to coordinate this better, potentially with a new client cap that only exposes the aspect ratio flags when userspace is prepared for them (similar to what we do with stereo 3D modes). Cc: Shashank Sharma <shashank.sharma@intel.com> Cc: Lin, Jia <lin.a.jia@intel.com> Cc: Akashdeep Sharma <akashdeep.sharma@intel.com> Cc: Jim Bride <jim.bride@linux.intel.com> Cc: Jose Abreu <Jose.Abreu@synopsys.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Emil Velikov <emil.l.velikov@gmail.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1478176304-6743-1-git-send-email-ville.syrjala@linux.intel.com
2016-11-09drm: helper macros to print composite typesRob Clark1-7/+1
I'll want to print things in a similar way in a later patch. This will make it easier. Signed-off-by: Rob Clark <robdclark@gmail.com> Reviewed-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Sean Paul <seanpaul@chromium.org> Link: http://patchwork.freedesktop.org/patch/msgid/1478358492-30738-2-git-send-email-robdclark@gmail.com
2016-10-21drm: Use u64 for intermediate dotclock calculationsChris Wilson1-2/+6
We have reached the era where monitor bandwidths now exceed 31bits in frequency calculations, though as we stored them in kHz units we are safe from overflow in the modelines for some time. [ 48.723720] UBSAN: Undefined behaviour in ../drivers/gpu/drm/drm_modes.c:325:49 [ 48.726943] signed integer overflow: [ 48.728503] 2240 * 1000000 cannot be represented in type 'int' Reported-by: Martin Liška <marxin.liska@gmail.com> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=98372 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20161021141540.26837-1-chris@chris-wilson.co.uk
2016-10-17drm: Add and handle new aspect ratios in DRM layerShashank Sharma1-0/+12
HDMI 2.0/CEA-861-F introduces two new aspect ratios: - 64:27 - 256:135 This patch: - Adds new DRM flags for to represent these new aspect ratios. - Adds new cases to handle these aspect ratios while converting from user->kernel mode or vise versa. V2: Rebase V3: Align macro for DRM_MODE_PICTURE_ASPECT_256_135 (Jim Bride) V4: Added r-b from Jose. Signed-off-by: Shashank Sharma <shashank.sharma@intel.com> Reviewed-by: Sean Paul <seanpaul@chromium.org> Reviewed-by: Jose Abreu <Jose.Abreu@synopsys.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Emil Velikov <emil.l.velikov@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1476705880-15600-5-git-send-email-shashank.sharma@intel.com
2016-10-17drm: Add aspect ratio parsing in DRM layerShashank Sharma1-0/+31
Current DRM layer functions don't parse aspect ratio information while converting a user mode->kernel mode or vice versa. This causes modeset to pick mode with wrong aspect ratio, eventually causing failures in HDMI compliance test cases, due to wrong VIC. This patch adds aspect ratio information in DRM's mode conversion and mode comparision functions, to make sure kernel picks mode with right aspect ratio (as per the VIC). V2: Addressed review comments from Sean: - Fix spellings/typo - No need to handle aspect ratio none - Add a break, for default case too V3: Rebase V4: Added r-b from Jose Signed-off-by: Shashank Sharma <shashank.sharma@intel.com> Signed-off-by: Lin, Jia <lin.a.jia@intel.com> Signed-off-by: Akashdeep Sharma <akashdeep.sharma@intel.com> Reviewed-by: Jim Bride <jim.bride@linux.intel.com> Reviewed-by: Jose Abreu <Jose.Abreu@synopsys.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Emil Velikov <emil.l.velikov@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1476705880-15600-3-git-send-email-shashank.sharma@intel.com
2016-08-16drm: update kerneldoc for changes introduced by commits "16fadc2568e9" and ↵Lothar Waßmann1-0/+10
"9671e228fb78" Describe the new parameter 'bus_flags' to of_get_drm_display_mode() in the kerneldoc comments and add kerneldoc comments to the new function drm_bus_flags_from_videomode(). Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1471354477-25877-1-git-send-email-LW@KARO-electronics.de
2016-08-08drm/imx: convey the pixelclk-active and de-active flags from DT to the ↵Lothar Waßmann1-1/+4
ipu-di driver The 'de-active' and 'pixelclk-active' DT properties are evaluated by of_parse_display_timing() called from of_get_drm_display_mode(), but later lost in the conversion from videomode.flags to drm_display_mode.flags. Enhance of_get_drm_display_mode() to also return the bus flags in a separate variable, so that they can be passed on to the ipu-di driver. Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-08-08drm: add a helper function to extract 'de-active' and 'pixelclk-active' from DTLothar Waßmann1-0/+15
add a helper function to extract information about pixel clock and DE polarity from DT for use by of_get_drm_display_mode(). While at it, convert spaces to tabs in indentation in drm_modes.h. Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-06-09Merge tag 'topic/drm-misc-2016-06-07' of ↵Dave Airlie1-1/+3
git://anongit.freedesktop.org/drm-intel into drm-next As promised, piles of prep work all around: - drm_atomic_state rework, prep for nonblocking commit helpers - fence patches from Gustavo and Christian to prep for atomic fences and some cool work in ttm/amdgpu from Christian - drm event prep for both nonblocking commit and atomic fences - Gustavo seems on a crusade against the non-kms-native version of the vblank functions. - prep work from Boris to nuke all the silly ->best_encoder implementations we have (we really only need that for truly dynamic cases like dvi-i vs dvi-d or dp mst selecting the right transcoder on intel) - prep work from Laurent to rework the format handling functions - and few small things all over * tag 'topic/drm-misc-2016-06-07' of git://anongit.freedesktop.org/drm-intel: (47 commits) drm/dsi: Implement set tear scanline drm/fb_cma_helper: Implement fb_mmap callback drm/qxl: Remove useless drm_fb_get_bpp_depth() call drm/ast: Remove useless drm_fb_get_bpp_depth() call drm/atomic: Fix remaining places where !funcs->best_encoder is valid drm/core: Change declaration for gamma_set. Documentation: add fence-array to kernel DocBook drm/shmobile: use drm_crtc_vblank_{get,put}() drm/radeon: use drm_crtc_vblank_{get,put}() drm/qxl: use drm_crtc_vblank_{get,put}() drm/atmel: use drm_crtc_vblank_{get,put}() drm/armada: use drm_crtc_vblank_{get,put}() drm/amdgpu: use drm_crtc_vblank_{get,put}() drm/virtio: use drm_crtc_send_vblank_event() drm/udl: use drm_crtc_send_vblank_event() drm/qxl: use drm_crtc_send_vblank_event() drm/atmel: use drm_crtc_send_vblank_event() drm/armada: use drm_crtc_send_vblank_event() drm/doc: Switch to sphinx/rst fixed-width quoting drm/doc: Drop kerneldoc for static functions in drm_irq.c ...
2016-06-03drm/doc: Switch to sphinx/rst fixed-width quotingDaniel Vetter1-1/+2
Just fallout from switching from asciidoc to sphinx/rst. v2: Found more. Also s/\//#/ in the vgpu ascii-art - sphinx treats those as comments and switch to variable-width, which wreaks the layout. v3: Undo some of the hacks, rebasing onto latest version of Jani's series fixed it. Acked-by: Liviu Dudau <Liviu.Dudau@arm.com> Acked-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2016-06-02drm/doc: Appease sphinxDaniel Vetter1-0/+1
Mostly this is unexpected indents. But really it's just a demonstration for my patch, all these issues have been found&fixed using the correct source file and line number support I just added. All line numbers have been perfectly accurate. One issue looked a bit fishy in intel_lrc.c, where I don't quite grok what sphinx is unhappy about. But since that file looks like it has never seen a proper kernel-doc parser I figured better to fix in a separate path. v2: Use fancy new &drm_device->struct_mutex linking (Jani). Cc: Jani Nikula <jani.nikula@intel.com> Cc: linux-doc@vger.kernel.org Cc: Jonathan Corbet <corbet@lwn.net> Acked-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2016-06-01drm: add missing drm_mode_set_crtcinfo callTomi Valkeinen1-0/+2
When setting mode via MODE_ID property, drm_atomic_set_mode_prop_for_crtc() does not call drm_mode_set_crtcinfo() which possibly causes: "[drm:drm_calc_timestamping_constants [drm]] *ERROR* crtc 32: Can't calculate constants, dotclock = 0!" Whether the error is seen depends on the previous data in state->mode, as state->mode is not cleared when setting new mode. This patch adds drm_mode_set_crtcinfo() call to drm_mode_convert_umode(), which is called in both legacy and atomic paths. This should be fine as there's no reason to call drm_mode_convert_umode() without also setting the crtc related fields. drm_mode_set_crtcinfo() is removed from the legacy drm_mode_setcrtc() as that is no longer needed. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-04-22drm/mode: rework drm_mode_object_put to drm_mode_object_unregister.Dave Airlie1-1/+1
This changes the code to handle being called multiple times without side effects. The new names seems more suitable for what it does. Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-02-09drm: modes: add missing [drm] to message printingLABBE Corentin1-2/+1
The warning message in drm_mode_parse_command_line_for_connector miss the [drm] at beginning. This patch add it and take the opportunity to convert printk(KERN_WARNING to pr_warn() Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1454594633-15100-1-git-send-email-clabbe.montjoie@gmail.com
2015-12-15drm/doc: Convert to markdownDanilo Cesar Lemes de Paula1-6/+6
DRM Docbook is now Markdown ready. This means its doc is able to use markdown text on it. * Documentation/DocBook/drm.tmpl: Contains a table duplicated from drivers/gpu/drm/i915/i915_reg.h. This is not needed anymore * drivers/gpu/drm/drm_modeset_lock.c: had a code example that used to look pretty bad on html. Fixed by using proper code markup. * drivers/gpu/drm/drm_prime.c: Remove spaces between lines to make a proper markup list. * drivers/gpu/drm/i915/i915_reg.h: Altought pandoc supports tables, it doesn't support table cell spanning. But we can use fixed-width for those special cases. * include/drm/drm_vma_manager.h: Another code example that should be proper indented with four spaces. v2 (Daniel): Adjust name to gpu.xml due to rename. v3 (Daniel): Split out the actual enabling in the Makefile - this way we can merge the conversion, while just keeping the enabling in a drm-private tree. Signed-off-by: Danilo Cesar Lemes de Paula <danilo.cesar@collabora.co.uk> (v1) Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Stephan Mueller <smueller@chronox.de> Cc: Michal Marek <mmarek@suse.cz> Cc: linux-kernel@vger.kernel.org Cc: linux-doc@vger.kernel.org Cc: intel-gfx <intel-gfx@lists.freedesktop.org> Cc: dri-devel <dri-devel@lists.freedesktop.org> Acked-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1448471279-19748-2-git-send-email-daniel.vetter@ffwll.ch
2015-12-11drm: modes: Revert cc344980c767 "replace simple_strtoul by kstrtouint"LABBE Corentin1-11/+5
My latest commit introduce some case where a valid mode, could be rejected. simple_strtox functions stop at first non-digit character, but kstrtox not. So args like "video=HDMI-A-1:720x480-16@60" will be reject when checking 16@. Discussions about this change comes to the conclusion that the best solution is to revert my commit cc344980c76748e57c9c03100c2a14d36ab00334. Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1449838739-29969-1-git-send-email-clabbe.montjoie@gmail.com
2015-12-11drm: Drop drm_helper_probe_single_connector_modes_nomerge()Ville Syrjälä1-9/+3
Now that the mode type bit merge logic is fixed to only merge between new probed modes, hopefully we can eliminat the special case for qxl and virtio. That is make the merge the mode type bits from all matching new probed modes, just like every other driver. qxl and virtio got excluded from the merging in commit 3fbd6439e463 ("drm: copy mode type in drm_mode_connector_list_update()") commit abce1ec9b08a ("Revert "drm: copy mode type in drm_mode_connector_list_update()"") commit b87577b7c768 ("drm: try harder to avoid regression when merging mode bits") Cc: Marc-André Lureau <marcandre.lureau@redhat.com> Cc: Dave Airlie <airlied@redhat.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Adam Jackson <ajax@redhat.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> [danvet: Resolve conflicts with doc updates.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-12-11drm: Only merge mode type bits between new probed modesVille Syrjälä1-7/+27
Currently most drivers request that any mode appearing on both the old mode list and the new probed_modes list get their type bits ORed together if the modes are deemed to otherwise match each other. I don't know why anyone would want to merge in the mode type bits from any mode left over from a previous probe. For instance, you could never get rid of ther preferred bit if a matching non-preferred mode is returned by the new probe. So let's not merge anything from the stale old modes, and just replace them outright with matching new modes. If multiple matching modes are produced by the same probe, merging the type bits between them would seem like a sensible thing to do. For a bit of extra finesse if two modes are considered equal we can pick the actual timings from the one marked as preferrred. And if multiple preferred modes are produced by the same probe somehow, we can just favor the first one added to the probed_modes list. You may be asking yourself why we bother with the merging at all if nothing from the old list survives in practice. The only answer I have is "debug output". That is we want to print out a list of pruned modes, which is why we still want to look for duplicates with the old modes. There was a previous attempt to get rid of the mode type merging entirely, but it caused some kind of regression on Daniels's G33 machine. Apparently the sdvo transcoder on said machine started to die at around the same time and has since rotted away totally, so it may have been a red herring. So we don't have to worry about it anymore. The relevant commits are: commit 3fbd6439e463 ("drm: copy mode type in drm_mode_connector_list_update()") commit abce1ec9b08a ("Revert "drm: copy mode type in drm_mode_connector_list_update()"") It was then decided in commit b87577b7c768 ("drm: try harder to avoid regression when merging mode bits") that just qxl virtio are excluded from the merging, while everyone else does it. That is not changed, although now even qxl and virtio will be subject to the previously mentioned logic to choose which actual timings are picked for the new mode. v2: Fix typos in commit message, and clarify the details on the G33 regression from the previous attempt (Daniel) Cc: Marc-André Lureau <marcandre.lureau@redhat.com> Cc: Dave Airlie <airlied@redhat.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Adam Jackson <ajax@redhat.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1449234781-22332-1-git-send-email-ville.syrjala@linux.intel.com
2015-12-11drm: Flatten drm_mode_connector_list_update() a bitVille Syrjälä1-18/+18
Use 'continue' to eliminate one indent level from drm_mode_connector_list_update(). And while at it, make 'found_it' bool. Cc: Adam Jackson <ajax@redhat.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1449177255-9515-5-git-send-email-ville.syrjala@linux.intel.com
2015-12-11drm: Rename MODE_UNVERIFIED to MODE_STALEVille Syrjälä1-1/+1
MODE_UNVERIFIED actually means that the mode came from a previous probe, and if the new probe doesn't produce a matching mode it will get pruned from the list. Rename the flag to MODE_STALE to better convey the meaning. v2: Rebased due to conflicts with Daniel's doc stuff Cc: Adam Jackson <ajax@redhat.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1449779948-10906-1-git-send-email-ville.syrjala@linux.intel.com
2015-12-09drm: Move drm_display_mode an related docs into kerneldocDaniel Vetter1-1/+2
This was in the documentation for modeset helper hooks, where it is a bit misplaced. v2: Reindent the drm_mode_status enum, inspired by Ville. v3: Suggestions from Ville and Thierry. v4: Small fixup that 0day spotted. v5: Slight change to avoid accidental headings in kerneldoc output. Cc: ville.syrjala@linux.intel.com Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1449218769-16577-27-git-send-email-daniel.vetter@ffwll.ch Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> (v3) Reviewed-by: Thierry Reding <treding@nvidia.com> (v3)
2015-12-01drm/edid: Make the detailed timing CEA/HDMI mode fixup accept up to 5kHz ↵Ville Syrjälä1-1/+18
clock difference Rather than using drm_match_cea_mode() to see if the EDID detailed timings are supposed to represent one of the CEA/HDMI modes, add a special version of that function that takes in an explicit clock tolerance value (in kHz). When looking at the detailed timings specify the tolerance as 5kHz due to the 10kHz clock resolution limit inherent in detailed timings. drm_match_cea_mode() uses the normal KHZ2PICOS() matching of clocks, which only allows smaller errors for lower clocks (eg. for 25200 it won't allow any error) and a bigger error for higher clocks (eg. for 297000 it actually matches 296913-297000). So it doesn't really match what we want for the fixup. Using the explicit +-5kHz is much better for this use case. Not sure if we should change the normal mode matching to also use something else besides KHZ2PICOS() since it allows a different proportion of error depending on the clock. I believe VESA CVT allows a maximum deviation of .5%, so using that for normal mode matching might be a good idea? Cc: Adam Jackson <ajax@redhat.com> Tested-by: nathan.d.ciobanu@linux.intel.com Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=92217 Fixes: fa3a7340eaa1 ("drm/edid: Fix up clock for CEA/HDMI modes specified via detailed timings") Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Adam Jackson <ajax@redhat.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-11-24drm: modes: replace simple_strtoul by kstrtouintLABBE Corentin1-5/+11
The simple_strtoul function is marked as obsolete. This patch replace it by kstrtouint. Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-05-22drm/mode: Unstatic kernel-userspace mode conversionDaniel Stone1-0/+87
Move the drm_display_mode <-> drm_mode_modeinfo conversion functions from drm_crtc.c to drm_modes.c, and make them non-static so that others can use them. Signed-off-by: Daniel Stone <daniels@collabora.com> Tested-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-03-23drm: mode: Allow NULL modes for equality checkDaniel Stone1-0/+6
Since we're now using mode == NULL to represent disabled, it's not wholly surprising that we'd want to compare NULL modes. Signed-off-by: Daniel Stone <daniels@collabora.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-03-23drm: mode: Fix typo in kerneldocDaniel Stone1-1/+1
Signed-off-by: Daniel Stone <daniels@collabora.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-03-10drm: Fix trivial typos in commentsYannick Guerrini1-2/+2
Change 'pixes' to 'pixels' Change 'enabel' to 'enable' Change 'enabeling' to 'enabling' Signed-off-by: Yannick Guerrini <yguerrini@tomshardware.fr> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-02-03drm/modes: Print the mode status in human readable formVille Syrjälä1-2/+59
Currently when a mode is rejected the reason is printed as a raw number. Having to manually decode that to a enum drm_mode_status value is tiresome. Have the code do the decoding instead and print the result in a human readable format. Just having an array of strings indexed with the mode status doesn't work since the enum includes negative values. So we offset the status by +3 which makes all the indexes non-negative. Also add a bit of paranoia into the code to catch out of bounds accesses in case someone adds more enum values but forgets to update the code. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-01-21Merge tag 'imx-drm-next-2015-01-09' of ↵Dave Airlie1-0/+40
git://git.pengutronix.de/git/pza/linux into drm-next imx-drm mode fixup support, imx-hdmi bridge conversion and imx-drm cleanup - Implement mode_fixup for a DI vertical timing limitation - Use generic DRM OF helpers in DRM core - Convert imx-hdmi to dw_hdmi drm_bridge and add rockchip driver - Add DC use counter to fix multi-display support - Simplify handling of DI clock flags - A few small fixes and cleanup * tag 'imx-drm-next-2015-01-09' of git://git.pengutronix.de/git/pza/linux: (26 commits) imx-drm: core: handling of DI clock flags to ipu_crtc_mode_set() gpu: ipu-di: Switch to DIV_ROUND_CLOSEST for DI clock divider calc gpu: ipu-v3: Use videomode in struct ipu_di_signal_cfg imx-drm: encoder prepare/mode_set must use adjusted mode imx-drm: ipuv3-crtc: Implement mode_fixup drm_modes: add drm_display_mode_to_videomode gpu: ipu-di: remove some non-functional code gpu: ipu-di: Add ipu_di_adjust_videomode() drm: rockchip: export functions needed by rockchip dw_hdmi bridge driver drm: bridge/dw_hdmi: request interrupt only after initializing the mutes drm: bridge/dw_hdmi: add rockchip rk3288 support dt-bindings: Add documentation for rockchip dw hdmi drm: bridge/dw_hdmi: add function dw_hdmi_phy_enable_spare drm: bridge/dw_hdmi: clear i2cmphy_stat0 reg in hdmi_phy_wait_i2c_done drm: bridge/dw_hdmi: add mode_valid support drm: bridge/dw_hdmi: add support for multi-byte register width access dt-bindings: add document for dw_hdmi drm: imx: imx-hdmi: move imx-hdmi to bridge/dw_hdmi drm: imx: imx-hdmi: split phy configuration to platform driver drm: imx: imx-hdmi: convert imx-hdmi to drm_bridge mode ...
2015-01-10Merge tag 'drm-intel-next-2014-12-19' of ↵Dave Airlie1-10/+16
git://anongit.freedesktop.org/drm-intel into drm-next - plane handling refactoring from Matt Roper and Gustavo Padovan in prep for atomic updates - fixes and more patches for the seqno to request transformation from John - docbook for fbc from Rodrigo - prep work for dual-link dsi from Gaurav Signh - crc fixes from Ville - special ggtt views infrastructure from Tvrtko Ursulin - shadow patch copying for the cmd parser from Brad Volkin - execlist and full ppgtt by default on gen8, for testing for now * tag 'drm-intel-next-2014-12-19' of git://anongit.freedesktop.org/drm-intel: (131 commits) drm/i915: Update DRIVER_DATE to 20141219 drm/i915: Hold runtime PM during plane commit drm/i915: Organize bind_vma funcs drm/i915: Organize INSTDONE report for future. drm/i915: Organize PDP regs report for future. drm/i915: Organize PPGTT init drm/i915: Organize Fence registers for future enablement. drm/i915: tame the chattermouth (v2) drm/i915: Warn about missing context state workarounds only once drm/i915: Use true PPGTT in Gen8+ when execlists are enabled drm/i915: Skip gunit save/restore for cherryview drm/i915/chv: Use timeout mode for RC6 on chv drm/i915: Add GPGPU_THREADS_DISPATCHED to the register whitelist drm/i915: Tidy up execbuffer command parsing code drm/i915: Mark shadow batch buffers as purgeable drm/i915: Use batch length instead of object size in command parser drm/i915: Use batch pools with the command parser drm/i915: Implement a framework for batch buffer pools drm/i915: fix use after free during eDP encoder destroying drm/i915/skl: Skylake also supports DP MST ...
2015-01-07drm_modes: add drm_display_mode_to_videomodeSteve Longerbeam1-0/+40
Add conversion from drm_display_mode to videomode. Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2014-12-17drm: Perform basic sanity checks on probed modesVille Syrjälä1-0/+32
Make sure the timings of probed modes at least pass some very basic sanity checks. The checks include: - clock,hdisplay,vdisplay are non zero - sync pulse fits within the blanking period - htotal,vtotal are big enough I have not checked all the drivers to see if the modes the generate might violate these constraints. I'm hoping not, because that would mean either abandoning the idea of doing this from the core code, or fixing the drivers. I'm not entirely sure about limiting the sync pulse to the blanking period. Intel hardware doesn't support such things, but some other hardware might. However at least HDMI doesn't allow having sync pulse edges within the active period, so I'm thinking the check is probably OK to have in the common code. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-12-17drm: Reorganize probed mode validationVille Syrjälä1-12/+12
Make drm_mode_validate_size() and drm_mode_validate_flag() deal with a single mode instead of having each iterate through the mode list. The hope is that in the future we might be able to share various mode validation functions between modeset and get_modes. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-12-05drm: add helper to get crtc timings (v5)Gustavo Padovan1-10/+16
We need to get hdisplay and vdisplay in a few places so create a helper to make our job easier. Note that drm_crtc_check_viewport() and intel_modeset_pipe_config() were previously making adjustments for doublescan modes and vscan > 1 modes, which was incorrect. Using our new helper fixes this mistake. v2 (by Matt): Use new stereo doubling function (suggested by Ville) v3 (by Matt): - Add missing kerneldoc (Daniel) - Use drm_mode_copy() (Jani) v4 (by Matt): - Drop stereo doubling function again; add 'stereo only' flag to drm_mode_set_crtcinfo() instead (Ville) v5 (by Matt): - Note behavioral change in drm_crtc_check_viewport() and intel_modeset_pipe_config(). (Ander) - Describe new adjustment flags in drm_mode_set_crtcinfo()'s kerneldoc. (Ander) Cc: dri-devel@lists.freedesktop.org Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Acked-by: Dave Airlie <airlied@gmail.com> Reviewed-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-10-21gpu:drm: Fix typo in Documentation/DocBook/drm.xmlMasanari Iida1-1/+1
This patch fix spelling typos found in drm.xml. It is because the file is generated from comments in source codes, I have to fix the typos within source files. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-08-06drm: Perform cmdline mode parsing during connector initialisationChris Wilson1-0/+1
i915.ko has a custom fbdev initialisation routine that aims to preserve the current mode set by the BIOS, unless overruled by the user. The user's wishes are determined by what, if any, mode is specified on the command line (via the video= parameter). However, that command line mode is first parsed by drm_fb_helper_initial_config() which is called after i915.ko's custom initial_config() as a fallback method. So in order for us to honour it, we need to move the cmdline parser earlier. If we perform the connector cmdline parsing as soon as we initialise the connector, that cmdline mode and forced status is then available even if the fbdev helper is not compiled in or never called. We also then expose the cmdline user mode in the connector mode lists. v2: Rebase after connector->name upheaval. v3: Adapt mga200 to look for the cmdline mode in the new place. Nicely simplifies things while at that. v4: Fix checkpatch. v5: Select FB_CMDLINE to adapt to the changed fbdev patch. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=73154 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> (v2) Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> (v2) Cc: dri-devel@lists.freedesktop.org Cc: Julia Lemire <jlemire@matrox.com> Cc: Dave Airlie <airlied@redhat.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-01drm: try harder to avoid regression when merging mode bitsDave Airlie1-2/+7
For QXL hw we really want the bits to be replaced as we change the preferred mode on the fly, and the same goes for virgl when I get to it, however the original fix for this seems to have caused a wierd regression on Intel G33 that in a stunning display of failure at opposition to his normal self, Daniel failed to diagnose. So we are left doing this, ugly ugly ugly ugly, Daniel you fixed that G33 yet?, ugly, ugly. Tested-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-03-13drm: polish function kerneldoc for drm_modes.[hc]Daniel Vetter1-65/+106
- Tune down yelling RETURNS. - OCD align all the parameters the same. - Add missing kerneldoc, which also means that we need to include the kerneldoc from the drm_modes.h header now. - Add missing Returns: sections. - General polish and clarification - especially the kerneldoc for the mode creation helpers seems to have been some good specimen of copypasta gone wrong. All actual code changes have all been extracted into prep patches since there was simply too much to polish. v2: More polish for the command line modeline functions. Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-03-13drm/modes: drop maxPitch from drm_mode_validate_sizeDaniel Vetter1-5/+1
Totally unused and actually redundant with maxX for display mode validation. The fb helper otoh needs to check pitch limits, but that is delegated into drivers instead. Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>