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2022-10-26drm/edid: move edid load declarations to internal headerJani Nikula1-7/+0
The EDID loader is internal to drm, not for drivers. Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/d58a59fede286caa8766e0813f4be492a7200287.1666614699.git.jani.nikula@intel.com
2022-10-26drm/edid: use struct drm_edid for override/firmware EDIDJani Nikula1-2/+2
There's a lot going on here, but the main thing is switching the firmware EDID loader to use struct drm_edid. Unfortunately, it's difficult to reasonably split to smaller pieces. Convert the EDID loader to struct drm_edid. There's a functional change in validation; it no longer tries to fix errors or filter invalid blocks. It's stricter in this sense. Hopefully this will not be an issue. As a by-product, this change also allows HF-EEODB extended EDIDs to be passed via override/firmware EDID. Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/e64267c28eca483e83c802bc06ddd149bdcdfc66.1666614699.git.jani.nikula@intel.com
2022-10-26drm/edid/firmware: rename drm_load_edid_firmware() to drm_edid_load_firmware()Jani Nikula1-2/+2
Follow the usual naming convention by file name. Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/d6714ae737d789764bd2bdb6e7c9a5f56c99eef3.1666614699.git.jani.nikula@intel.com
2022-10-26drm/edid: add function for checking drm_edid validityJani Nikula1-0/+1
We've lacked a function for immutable validity check on drm_edid. Add one. Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/f96188f64e9f7f3deff348d08296609353b12316.1666614699.git.jani.nikula@intel.com
2022-10-26drm/edid: rename drm_add_override_edid_modes() to ↵Jani Nikula1-1/+1
drm_edid_override_connector_update() Follow the naming of both EDID override functions as well as drm_edid_connector_update(). This also matches better what the function does; a combination of EDID property update and add modes. Indeed it should later be converted to call drm_edid_connector_update(). Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/ba12957e0488654e8db010a3ff1534079caec972.1666614699.git.jani.nikula@intel.com
2022-10-18Merge drm/drm-next into drm-misc-nextMaxime Ripard1-0/+5
Let's kick-off this release cycle. Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2022-10-04drm/edid: Define more flagsVille Syrjälä1-5/+9
Replace a bunch of hex constants with proper definitions. Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220927170006.27855-3-ville.syrjala@linux.intel.com
2022-09-02drm/edid: Handle EDID 1.4 range descriptor h/vfreq offsetsVille Syrjälä1-0/+5
EDID 1.4 introduced some extra flags in the range descriptor to support min/max h/vfreq >= 255. Consult them to correctly parse the vfreq limits. Note that some combinations of the flags are documented as "reserved" (as are some other values in the descriptor) but explicitly checking for those doesn't seem particularly worthwile since we end up with bogus results whether we decode them or not. v2: Increase the storage to u16 to make it work (Jani) Note the "reserved" values situation (Jani) v3: Document the EDID version number in the defines Drop some bogus (u8) casts Cc: stable@vger.kernel.org Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/6519 References: https://gitlab.freedesktop.org/drm/intel/-/issues/6484 Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220826213501.31490-2-ville.syrjala@linux.intel.com Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
2022-06-30drm/edid: add drm_edid_raw() to access the raw EDID dataJani Nikula1-0/+1
Unfortunately, there are still plenty of interfaces around that require a struct edid pointer, and it's impossible to change them all at once. Add an accessor to the raw EDID data to help the transition. While there are no such cases now, be defensive against raw EDID extension count indicating bigger EDID than is actually allocated. Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/fb55d0b580d556bf2b8e58070239657ac9cb4b2f.1656494768.git.jani.nikula@intel.com
2022-06-30drm/edid: add drm_edid_connector_update()Jani Nikula1-0/+2
Add a new function drm_edid_connector_update() to replace the combination of calls drm_connector_update_edid_property() and drm_add_edid_modes(). Usually they are called in the drivers in this order, however the former needs information from the latter. Since the new drm_edid_read*() functions no longer call the connector updates directly, and the read and update are separated, we'll need this new function for the connector update. This is all in drm_edid.c simply to keep struct drm_edid opaque. v2: - Share code with drm_connector_update_edid_property() (Ville) - Add comment about override EDID handling Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/75aa3dbc8c9aa26ebbcdeacd98a466ef8d8827f4.1656494768.git.jani.nikula@intel.com
2022-06-20Merge drm/drm-next into drm-misc-nextThomas Zimmermann1-3/+3
Backmerging to get new regmap APIs of v5.19-rc1. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
2022-06-15Merge tag 'drm-misc-next-2022-06-08' of ↵Daniel Vetter1-6/+21
git://anongit.freedesktop.org/drm/drm-misc into drm-next drm-misc-next for 5.20: UAPI Changes: * connector: export bpc limits in debugfs * dma-buf: Print buffer name in debugfs Cross-subsystem Changes: * dma-buf: Improve dma-fence handling; Cleanups * fbdev: Device-unregistering fixes Core Changes: * client: Only use driver-validated modes to avoid blank screen * dp-aux: Make probing more reliable; Small fixes * edit: CEA data-block iterators; Introduce struct drm_edid; Many cleanups * gem: Don't use framebuffer format's non-exising color planes * probe-helper: Use 640x480 as DisplayPort fallback; Refactoring * scheduler: Don't kill jobs in interrupt context Driver Changes: * amdgpu: Use atomic fence helpers in DM; Fix VRAM address calculation; Export CRTC bpc settings via debugfs * bridge: Add TI-DLPC3433; anx7625: Fixes; fy07024di26a30d: Optional GPIO reset; icn6211: Cleanups; ldb: Add reg and reg-name properties to bindings, Kconfig fixes; lt9611: Fix display sensing; lt9611uxc: Fixes; nwl-dsi: Fixes; ps8640: Cleanups; st7735r: Fixes; tc358767: DSI/DPI refactoring and DSI-to-eDP support, Fixes; ti-sn65dsi83: Fixes; * gma500: Cleanup connector I2C handling * hyperv: Unify VRAM allocation of Gen1 and Gen2 * i915: export CRTC bpc settings via debugfs * meson: Support YUV422 output; Refcount fixes * mgag200: Support damage clipping; Support gamma handling; Protect concurrent HW access; Fixes to connector; Store model-specific limits in device-info structure; Cleanups * nouveau: Fixes and Cleanups * panel: Kconfig fixes * panfrost: Valhall support * r128: Fix bit-shift overflow * rockchip: Locking fixes in error path; Minor cleanups * ssd130x: Fix built-in linkage * ttm: Cleanups * udl; Always advertize VGA connector * fbdev/vesa: Support COMPILE_TEST Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> From: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/YqBtumw05JZDEZE2@linux-uq9g
2022-06-13drm/edid: add new interfaces around struct drm_edidJani Nikula1-0/+9
Add new functions drm_edid_read(), drm_edid_read_ddc(), and drm_edid_read_custom() to replace drm_get_edid() and drm_do_get_edid() for reading the EDID. The transition is expected to happen over a fairly long time. Note that the new drm_edid_read*() functions do not do any of the connector updates anymore. The reading and parsing will be completely separated from each other. Add new functions drm_edid_alloc(), drm_edid_dup(), and drm_edid_free() for allocating and freeing drm_edid containers. Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/5a6532a94cad6a79424f6d1918dbe7b7d607ac03.1654674560.git.jani.nikula@intel.com
2022-05-28drm: fix EDID struct for old ARM OABI formatLinus Torvalds1-3/+3
When building the kernel for arm with the "-mabi=apcs-gnu" option, gcc will force alignment of all structures and unions to a word boundary (see also STRUCTURE_SIZE_BOUNDARY and the "-mstructure-size-boundary=XX" option if you're a gcc person), even when the members of said structures do not want or need said alignment. This completely messes up the structure alignment of 'struct edid' on those targets, because even though all the embedded structures are marked with "__attribute__((packed))", the unions that contain them are not. This was exposed by commit f1e4c916f97f ("drm/edid: add EDID block count and size helpers"), but the bug is pre-existing. That commit just made the structure layout problem cause a build failure due to the addition of the BUILD_BUG_ON(sizeof(*edid) != EDID_LENGTH); sanity check in drivers/gpu/drm/drm_edid.c:edid_block_data(). This legacy union alignment should probably not be used in the first place, but we can fix the layout by adding the packed attribute to the union entries even when each member is already packed and it shouldn't matter in a sane build environment. You can see this issue with a trivial test program: union { struct { char c[5]; }; struct { char d; unsigned e; } __attribute__((packed)); } a = { "1234" }; where building this with a normal "gcc -S" will result in the expected 5-byte size of said union: .type a, @object .size a, 5 but with an ARM compiler and the old ABI: arm-linux-gnu-gcc -mabi=apcs-gnu -mfloat-abi=soft -S t.c you get .type a, %object .size a, 8 instead, because even though each member of the union is packed, the union itself still gets aligned. This was reported by Sudip for the spear3xx_defconfig target. Link: https://lore.kernel.org/lkml/YpCUzStDnSgQLNFN@debian/ Reported-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <mripard@kernel.org> Cc: Thomas Zimmermann <tzimmermann@suse.de> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-05-27drm/edid: Extract drm_edid_decode_mfg_id()Ville Syrjälä1-4/+17
Make the PNPID decoding available for other users. Cc: dri-devel@lists.freedesktop.org Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220510104242.6099-15-ville.syrjala@linux.intel.com
2022-05-13drm/displayid: convert to drm_edidJani Nikula1-2/+4
We'll need to propagate drm_edid everywhere. v2: Rebase Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/a52a6882e87a4bb6b1670918f3aba13f9b52f6de.1652097712.git.jani.nikula@intel.com
2022-04-25drm/display: Move HDMI helpers into display-helper moduleThomas Zimmermann1-12/+0
Move DRM's HMDI helpers into the display/ subdirectoy and add it to DRM's display helpers. Update all affected drivers. No functional changes. The HDMI helpers were implemented in the EDID and connector code, but are actually unrelated. With the move to the display-helper library, we can remove the dependency on drm_edid.{c,h} in some driver's HDMI source files. Several of the HDMI helpers remain in EDID code because both share parts of their implementation internally. With better refractoring of the EDID code, those HDMI helpers could be moved into the display-helper library as well. v3: * fix Kconfig dependencies (Javier) v2: * reduce HDMI helpers to avoid exporting functions (Jani) * fix include statements (Jani, Javier) * update Kconfig symbols Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220421073108.19226-8-tzimmermann@suse.de
2022-04-01drm/edid: make drm_edid_header_is_valid() accept void pointerJani Nikula1-1/+1
It will be useful to accept a struct edid *, but for compatibility with existing usage accept void *. Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/33fbe1615a3bd82112eaf4077bbb521793cbb91a.1648752228.git.jani.nikula@intel.com
2022-03-29drm/edid: add more general struct edid constness in the interfacesJani Nikula1-5/+5
With this, the remaining non-const parts are the ones that actually modify the EDID, for example to fix corrupt EDID. Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/c7156f22494b585c55a00a6732462bde0cc19dbf.1648477901.git.jani.nikula@intel.com
2022-01-25drm/edid: Rename drm_hdmi_avi_infoframe_colorspace to _colorimetryMaxime Ripard1-2/+2
The drm_hdmi_avi_infoframe_colorspace() function actually sets the colorimetry and extended_colorimetry fields in the hdmi_avi_infoframe structure with DRM_MODE_COLORIMETRY_* values. To make things worse, the hdmi_avi_infoframe structure also has a colorspace field used to signal whether an RGB or YUV output is being used. Let's remove the inconsistency and allow for the colorspace usage by renaming the function. Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20220120151625.594595-2-maxime@cerno.tech
2021-09-28drm/edid: Fix drm_edid_encode_panel_id() kerneldoc warningDouglas Anderson1-2/+2
Due to a simple typo (apparently I can't count. It goes 0, 1, 2 and not 0, 2, 3) we were getting a kernel doc warning that looked like this: include/drm/drm_edid.h:530: warning: Function parameter or member 'vend_chr_1' not described in 'drm_edid_encode_panel_id' include/drm/drm_edid.h:530: warning: Excess function parameter 'vend_chr_3' description in 'drm_edid_encode_panel_id' Fix it. Fixes: 7d1be0a09fa6 ("drm/edid: Fix EDID quirk compile error on older compilers") Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Douglas Anderson <dianders@chromium.org> Acked-by: Randy Dunlap <rdunlap@infradead.org> Link: https://patchwork.freedesktop.org/patch/msgid/20210927074104.1.Ibf22f2a0b75287a5d636c0570c11498648bf61c6@changeid
2021-09-25drm/edid: Fix EDID quirk compile error on older compilersDouglas Anderson1-6/+8
Apparently some compilers [1] cannot handle doing math on dereferenced string constants at compile time. This has led to reports [2] of compile errors like: In file included from drivers/gpu/drm/drm_edid.c:42:0: ./include/drm/drm_edid.h:525:2: error: initializer element is not constant ((((u32)((vend)[0]) - '@') & 0x1f) << 26 | \ Go back to the syntax I used in v4 of the patch series [3] that added this code instead of what landed (v5). This syntax is slightly uglier but should be much more compatible with varied compilers. [1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69960#c18 [2] https://lore.kernel.org/r/874kaabdt5.fsf@intel.com/ [3] https://lore.kernel.org/r/20210909135838.v4.4.I6103ce2b16e5e5a842b14c7022a034712b434609@changeid/ Fixes: d9f91a10c3e8 ("drm/edid: Allow querying/working with the panel ID from the EDID") Reported-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com> Reported-by: Srikanth Myakam <smyakam@microsoft.com> Signed-off-by: Douglas Anderson <dianders@chromium.org> Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested Acked-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20210924075317.1.I1e58d74d501613f1fe7585958f451160d11b8a98@changeid
2021-09-20drm/edid: Allow querying/working with the panel ID from the EDIDDouglas Anderson1-0/+45
EDIDs have 32-bits worth of data which is intended to be used to uniquely identify the make/model of a panel. This has historically been used only internally in the EDID processing code to identify quirks with panels. We'd like to use this panel ID in panel drivers to identify which panel is hooked up and from that information figure out power sequence timings. Let's expose this information from the EDID code and also allow it to be accessed early, before a connector has been created. To make matching in the panel drivers code easier, we'll return the panel ID as a 32-bit value. We'll provide some functions for converting this value back and forth to something more human readable. Signed-off-by: Douglas Anderson <dianders@chromium.org> Acked-by: Sam Ravnborg <sam@ravnborg.org> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20210914132020.v5.3.I4a672175ba1894294d91d3dbd51da11a8239cf4a@changeid
2021-08-12drm/edid: fix edid field nameLucas De Marchi1-1/+1
Byte 26 in a edid struct is supposed to be "Blue and white least-significant 2 bits", not "black and white". Rename the field accordingly. This field is not used anywhere, so just renaming it here for correctness. Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: Simon Ser <contact@emersion.fr> Signed-off-by: Simon Ser <contact@emersion.fr> Link: https://patchwork.freedesktop.org/patch/msgid/20210811205818.156100-1-lucas.demarchi@intel.com
2021-03-31drm/displayid: add separate drm_displayid.cJani Nikula1-0/+3
We'll be adding more DisplayID specific functions going forward, so start off by splitting out a few functions to a separate file. We don't bother with exporting the functions; at least for now they should be needed solely within drm.ko. No functional changes. Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/07942d5011891b8e8f77245c78b34f4af97a9315.1617024940.git.jani.nikula@intel.com
2020-12-22drm/edid: Add additional HFVSDB fields for HDMI2.1Swati Sharma1-0/+30
The HDMI2.1 extends HFVSDB (HDMI Forum Vendor Specific Data block) to have fields related to newly defined methods of FRL (Fixed Rate Link) levels, number of lanes supported, DSC Color bit depth, VRR min/max, FVA (Fast Vactive), ALLM etc. This patch adds the new HFVSDB fields that are required for HDMI2.1. v2: Minor fixes + consistent naming for DPCD register masks (Uma Shankar) Signed-off-by: Swati Sharma <swati2.sharma@intel.com> Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com> Reviewed-by: Uma Shankar <uma.shankar@intel.com> [Jani: Fixed checkpatch FROM_SIGN_OFF_MISMATCH.] Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20201218103723.30844-2-ankit.k.nautiyal@intel.com
2020-10-27drm: drm_edid: remove a duplicated kernel-doc declarationMauro Carvalho Chehab1-7/+0
It is not possible to create cross-references for duplicated symbols. While Sphinx always detected it, on Sphinx 3 it generates warnings like this: .../Documentation/gpu/drm-kms-helpers:326: ../drivers/gpu/drm/drm_edid.c:1626: WARNING: Duplicate C declaration, also defined in 'gpu/drm-kms-helpers'. Declaration is 'bool drm_edid_are_equal (const struct edid *edid1, const struct edid *edid2)'. So, get rid of the duplicated kernel-doc markup. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/9310f4074fa9d29cd3ad60684d86d0ace8dab7ae.1603791716.git.mchehab+huawei@kernel.org
2020-09-17drm/dp: Add drm_dp_downstream_mode()Ville Syrjälä1-0/+4
The downstream facing port caps in the DPCD can give us a hint as to what kind of display mode the sink can use if it doesn't have an EDID. Use that information to pick a suitable mode. v2: Use Returns: for kdoc (Lyude) Add kdocs for drm_display_mode_from_cea_vic() (Lyude) Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200904115354.25336-14-ville.syrjala@linux.intel.com Reviewed-by: Lyude Paul <lyude@redhat.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2020-06-30drm: Add helper to compare edids.Stanislav Lisovskiy1-0/+9
Many drivers would benefit from using drm helper to compare edid, rather than bothering with own implementation. v2: Added documentation for this function. Signed-off-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200630002700.5451-2-kunal1.joshi@intel.com
2020-06-23drm: edid: Constify connector argument to infoframe functionsLaurent Pinchart1-3/+3
The drm_hdmi_avi_infoframe_from_display_mode(), drm_hdmi_vendor_infoframe_from_display_mode() and drm_hdmi_avi_infoframe_quant_range() functions take a drm_connector that they don't modify. Mark it as const. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20200526011505.31884-10-laurent.pinchart+renesas@ideasonboard.com
2020-03-11drm/edid: Name the detailed monitor range flagsManasi Navare1-0/+5
This patch adds defines for the detailed monitor range flags as per the EDID specification. v2: * Rename the flags with DRM_EDID_ (Jani N) Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Harry Wentland <harry.wentland@amd.com> Cc: Clinton A Taylor <clinton.a.taylor@intel.com> Cc: Kazlauskas Nicholas <Nicholas.Kazlauskas@amd.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Signed-off-by: Manasi Navare <manasi.d.navare@intel.com> Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200310231651.13841-1-manasi.d.navare@intel.com
2019-10-22drm/edid: Add drm_hdmi_avi_infoframe_bars()Ville Syrjälä1-0/+4
Add a function to fill the AVI infoframe bar information from the standard tv margin properties. Cc: Eric Anholt <eric@anholt.net> Cc: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191008164814.5894-1-ville.syrjala@linux.intel.com Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
2019-10-18drm/edid: Make drm_get_cea_aspect_ratio() staticVille Syrjälä1-1/+0
drm_get_cea_aspect_ratio() is not used outside drm_edid.c. Make it static. Cc: Wayne Lin <waynelin@amd.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191004141914.20600-1-ville.syrjala@linux.intel.com Reviewed-by: Uma Shankar <uma.shankar@intel.com>
2019-06-19Merge v5.2-rc5 into drm-nextDaniel Vetter1-0/+1
Maarten needs -rc4 backmerged so he can pull in the fbcon notifier removal topic branch into drm-misc-next. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2019-06-12drm: add fallback override/firmware EDID modes workaroundJani Nikula1-0/+1
We've moved the override and firmware EDID (simply "override EDID" from now on) handling to the low level drm_do_get_edid() function in order to transparently use the override throughout the stack. The idea is that you get the override EDID via the ->get_modes() hook. Unfortunately, there are scenarios where the DDC probe in drm_get_edid() called via ->get_modes() fails, although the preceding ->detect() succeeds. In the case reported by Paul Wise, the ->detect() hook, intel_crt_detect(), relies on hotplug detect, bypassing the DDC. In the case reported by Ilpo Järvinen, there is no ->detect() hook, which is interpreted as connected. The subsequent DDC probe reached via ->get_modes() fails, and we don't even look at the override EDID, resulting in no modes being added. Because drm_get_edid() is used via ->detect() all over the place, we can't trivially remove the DDC probe, as it leads to override EDID effectively meaning connector forcing. The goal is that connector forcing and override EDID remain orthogonal. Generally, the underlying problem here is the conflation of ->detect() and ->get_modes() via drm_get_edid(). The former should just detect, and the latter should just get the modes, typically via reading the EDID. As long as drm_get_edid() is used in ->detect(), it needs to retain the DDC probe. Or such users need to have a separate DDC probe step first. The EDID caching between ->detect() and ->get_modes() done by some drivers is a further complication that prevents us from making drm_do_get_edid() adapt to the two cases. Work around the regression by falling back to a separate attempt at getting the override EDID at drm_helper_probe_single_connector_modes() level. With a working DDC and override EDID, it'll never be called; the override EDID will come via ->get_modes(). There will still be a failing DDC probe attempt in the cases that require the fallback. v2: - Call drm_connector_update_edid_property (Paul) - Update commit message about EDID caching (Daniel) Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107583 Reported-by: Paul Wise <pabs3@bonedaddy.net> Cc: Paul Wise <pabs3@bonedaddy.net> References: http://mid.mail-archive.com/alpine.DEB.2.20.1905262211270.24390@whs-18.cs.helsinki.fi Reported-by: Ilpo Järvinen <ilpo.jarvinen@cs.helsinki.fi> Cc: Ilpo Järvinen <ilpo.jarvinen@cs.helsinki.fi> Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch> References: 15f080f08d48 ("drm/edid: respect connector force for drm_get_edid ddc probe") Fixes: 53fd40a90f3c ("drm: handle override and firmware EDID at drm_do_get_edid() level") Cc: <stable@vger.kernel.org> # v4.15+ 56a2b7f2a39a drm/edid: abstract override/firmware EDID retrieval Cc: <stable@vger.kernel.org> # v4.15+ Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Harish Chegondi <harish.chegondi@intel.com> Tested-by: Paul Wise <pabs3@bonedaddy.net> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190610093054.28445-1-jani.nikula@intel.com
2019-06-06drm/edid: Clean up DRM_EDID_DIGITAL_* flagsVille Syrjälä1-15/+17
Give the "DFP 1.x" bit a proper name, and clean up the rest of the bits defines as well. Cc: Mario Kleiner <mario.kleiner.de@gmail.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190529110204.2384-1-ville.syrjala@linux.intel.com Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Mario Kleiner <mario.kleiner.de@gmail.com>
2019-05-22drm: Enable HDR infoframe supportUma Shankar1-0/+5
Enable Dynamic Range and Mastering Infoframe for HDR content, which is defined in CEA 861.3 spec. The metadata will be computed based on blending policy in userspace compositors and passed as a connector property blob to driver. The same will be sent as infoframe to panel which support HDR. Added the const version of infoframe for DRM metadata for HDR. v2: Rebase and added Ville's POC changes. v3: No Change v4: Addressed Shashank's review comments and merged the patch making drm infoframe function arguments as constant. v5: Rebase v6: Fixed checkpatch warnings with --strict option. Addressed Shashank's review comments and added his RB. v7: Addressed Brian Starkey's review comments. Merged 2 patches into one. v8: Addressed Jonas Karlman review comments. v9: Addressed Jonas Karlman review comments. v10: Addressed Ville's review comments. v11: Added BUILD_BUG_ON and sizeof instead of magic numbers as per Ville's comments. Signed-off-by: Uma Shankar <uma.shankar@intel.com> Reviewed-by: Shashank Sharma <shashank.sharma@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/1558015817-12025-5-git-send-email-uma.shankar@intel.com
2019-02-19drm: Add colorspace info to AVI InfoframeUma Shankar1-0/+6
This adds colorspace information to HDMI AVI infoframe. A helper function is added to program the same. v2: Moved this to drm core instead of i915 driver. v3: Exported the helper function. v4: Added separate HDMI specific macro as per CTA spec. This is separate from user exposed enum values. This is as per Ville's suggestion. v5: Appended BT709 and SMPTE 170M with YCC information as per Ville's review comment to be clear and not to be confused with RGB. v6: Added bit wise macro for various fields of colorimetry for easier understanding and review as per Ville's comments. Moved the same out of header file to avoid any namespace issues. v7: Undef some macros to avoid any namespace collision as suggested by Ville. Added Ville's RB. Signed-off-by: Uma Shankar <uma.shankar@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/1550596381-993-3-git-send-email-uma.shankar@intel.com
2019-01-10drm/edid: Add display_info.rgb_quant_range_selectableVille Syrjälä1-3/+1
Move the CEA-861 QS bit handling entirely into the edid code. No need to bother the drivers with this. Cc: Alex Deucher <alexander.deucher@amd.com> Cc: "Christian König" <christian.koenig@amd.com> Cc: "David (ChunMing) Zhou" <David1.Zhou@amd.com> Cc: amd-gfx@lists.freedesktop.org Cc: Eric Anholt <eric@anholt.net> (supporter:DRM DRIVERS FOR VC4) Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Acked-by: Eric Anholt <eric@anholt.net> Link: https://patchwork.freedesktop.org/patch/msgid/20190108172828.15184-4-ville.syrjala@linux.intel.com
2019-01-10drm/edid: Pass connector to AVI infoframe functionsVille Syrjälä1-4/+4
Make life easier for drivers by simply passing the connector to drm_hdmi_avi_infoframe_from_display_mode() and drm_hdmi_avi_infoframe_quant_range(). That way drivers don't need to worry about is_hdmi2_sink mess. v2: Make is_hdmi2_sink() return true for sil-sii8620 Adapt to omap/vc4 changes Cc: Alex Deucher <alexander.deucher@amd.com> Cc: "Christian König" <christian.koenig@amd.com> Cc: "David (ChunMing) Zhou" <David1.Zhou@amd.com> Cc: Archit Taneja <architt@codeaurora.org> Cc: Andrzej Hajda <a.hajda@samsung.com> Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com> 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: Russell King <linux@armlinux.org.uk> Cc: CK Hu <ck.hu@mediatek.com> Cc: Philipp Zabel <p.zabel@pengutronix.de> Cc: Rob Clark <robdclark@gmail.com> Cc: Ben Skeggs <bskeggs@redhat.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: Sandy Huang <hjc@rock-chips.com> Cc: "Heiko Stübner" <heiko@sntech.de> Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org> Cc: Vincent Abriou <vincent.abriou@st.com> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Eric Anholt <eric@anholt.net> Cc: Shawn Guo <shawnguo@kernel.org> Cc: Ilia Mirkin <imirkin@alum.mit.edu> Cc: amd-gfx@lists.freedesktop.org Cc: linux-arm-msm@vger.kernel.org Cc: freedreno@lists.freedesktop.org Cc: nouveau@lists.freedesktop.org Cc: linux-tegra@vger.kernel.org Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Acked-by: Thierry Reding <treding@nvidia.com> Acked-by: Russell King <rmk+kernel@armlinux.org.uk> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190108172828.15184-1-ville.syrjala@linux.intel.com
2018-10-16drm/edid: VSDB yCBCr420 Deep Color mode bit definitionsClint Taylor1-3/+3
HDMI Forum VSDB YCBCR420 deep color capability bits are 2:0. Correct definitions in the header for the mask to work correctly. Fixes: e6a9a2c3dc43 ("drm/edid: parse ycbcr 420 deep color information") Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107893 Cc: <stable@vger.kernel.org> # v4.14+ Signed-off-by: Clint Taylor <clinton.a.taylor@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Shashank Sharma <shashank.sharma@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/1538776335-12569-1-git-send-email-clinton.a.taylor@intel.com
2018-04-24drm: Don't EXPORT drm_add/reset_display_infoDaniel Vetter1-2/+0
Only used within drm.ko, no need to tempt drivers. Cc: Keith Packard <keithp@keithp.com> Cc: Ville Syrjala <ville.syrjala@linux.intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180424142242.12093-1-daniel.vetter@ffwll.ch
2017-12-13drm: Update edid-derived drm_display_info fields at edid property set [v2]Keith Packard1-0/+2
There are a set of values in the drm_display_info structure for each connector which hold information derived from EDID. These are computed in drm_add_display_info. Before this patch, that was only called in drm_add_edid_modes. This meant that they were only set when EDID was present and never reset when EDID was not, as happened when the display was disconnected. One of these fields, non_desktop, is used from drm_mode_connector_update_edid_property, the function responsible for assigning the new edid value to the application-visible property. Various drivers call these two functions (drm_add_edid_modes and drm_mode_connector_update_edid_property) in different orders. This means that even when EDID is present, the drm_display_info fields may not have been computed at the time that drm_mode_connector_update_edid_property used the non_desktop value to set the non_desktop property. I've added a public function (drm_reset_display_info) that resets the drm_display_info field values to default values and then made the drm_add_display_info function public. These two functions are now called directly from drm_mode_connector_update_edid_property so that the drm_display_info fields are always computed from the current EDID information before being used in that function. This means that the drm_display_info values are often computed twice, once when the EDID property it set and a second time when EDID is used to compute modes for the device. The alternative would be to uniformly ensure that the values were computed once before being used, which would require that all drivers reliably invoke the two paths in the same order. The computation is inexpensive enough that it seems more maintainable in the long term to simply compute them in both paths. The API to drm_add_display_info has been changed so that it no longer takes the set of edid-based quirks as a parameter. Rather, it now computes those quirks itself and returns them for further use by drm_add_edid_modes. This patch also includes a number of 'const' additions caused by drm_mode_connector_update_edid_property taking a 'const struct edid *' parameter and wanting to pass that along to drm_add_display_info. v2: after review by Daniel Vetter <daniel.vetter@ffwll.ch> Removed EXPORT_SYMBOL_GPL for drm_reset_display_info and drm_add_display_info. Added FIXME in drm_mode_connector_update_edid_property about potentially merging that with drm_add_edid_modes to avoid the need for two driver calls. Signed-off-by: Keith Packard <keithp@keithp.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20171213084427.31199-1-keithp@keithp.com
2017-12-03Merge tag 'drm-misc-next-2017-11-30' of ↵Dave Airlie1-1/+1
git://anongit.freedesktop.org/drm/drm-misc into drm-next Cross-subsystem Changes: - device tree doc for the Mitsubishi AA070MC01 and Tianma TM070RVHG71 panels (Lukasz Majewski) and for a 2nd endpoint on stm32 (Philippe Cornu) Core Changes: The most important changes are: - Add drm_driver .last_close and .output_poll_changed helpers to reduce fbdev emulation footprint in drivers (Noralf) - Fix plane clipping in core and for vmwgfx (Ville) Then we have a bunch of of improvement for print and debug such as the addition of a framebuffer debugfs file. ELD connector, HDMI and improvements. And a bunch of misc improvements, clean ups and style changes and doc updates [airlied: drop eld bits from amdgpu_dm] Driver Changes: - sii8620: filter unsupported modes and add DVI mode support (Maciej Purski) - rockchip: analogix_dp: Remove unnecessary init code (Jeffy Chen) - virtio, cirrus: add fb create_handle support to enable screenshots(Lepton Wu) - virtio: replace reference/unreference with get/put (Aastha Gupta) - vc4, gma500: Convert timers to use timer_setup() (Kees Cook) - vc4: Reject HDMI modes with too high of clocks (Eric) - vc4: Add support for more pixel formats (Dave Stevenson) - stm: dsi: Rename driver name to "stm32-display-dsi" (Philippe Cornu) - stm: ltdc: add a 2nd endpoint (Philippe Cornu) - via: use monotonic time for VIA_WAIT_IRQ (Arnd Bergmann) * tag 'drm-misc-next-2017-11-30' of git://anongit.freedesktop.org/drm/drm-misc: (96 commits) drm/bridge: tc358767: add copyright lines MAINTAINERS: change maintainer for Rockchip drm drivers drm/vblank: Fix vblank timestamp debugs drm/via: use monotonic time for VIA_WAIT_IRQ dma-buf: Fix ifnullfree.cocci warnings drm/printer: Add drm_vprintf() drm/edid: Allow HDMI infoframe without VIC or S3D video/hdmi: Allow "empty" HDMI infoframes dma-buf/fence: Fix lock inversion within dma-fence-array drm/sti: Handle return value of platform_get_irq_byname drm/vc4: Add support for NV21 and NV61. drm/vc4: Use .pixel_order instead of custom .flip_cbcr drm/vc4: Add support for DRM_FORMAT_RGB888 and DRM_FORMAT_BGR888 drm: Move drm_plane_helper_check_state() into drm_atomic_helper.c drm: Check crtc_state->enable rather than crtc->enabled in drm_plane_helper_check_state() drm/vmwgfx: Try to fix plane clipping drm/vmwgfx: Use drm_plane_helper_check_state() drm/vmwgfx: Remove bogus crtc coords vs fb size check gpu: gma500: remove unneeded DRIVER_LICENSE #define drm: don't link DP aux i2c adapter to the hardware device node ...
2017-11-24Merge tag 'drm-misc-fixes-2017-11-20' of ↵Dave Airlie1-1/+2
git://anongit.freedesktop.org/drm/drm-misc into drm-next 4.15 merge window fixes 1 * tag 'drm-misc-fixes-2017-11-20' of git://anongit.freedesktop.org/drm/drm-misc: drm/edid: Don't send non-zero YQ in AVI infoframe for HDMI 1.x sinks drm/vc4: Account for interrupts in flight
2017-11-22drm/edid: Allow HDMI infoframe without VIC or S3DVille Syrjälä1-0/+1
Appedix F of HDMI 2.0 says that some HDMI sink may fail to switch from 3D to 2D mode in a timely fashion if the source simply stops sending the HDMI infoframe. The suggested workaround is to keep sending the infoframe even when strictly not necessary (ie. no VIC and no S3D). HDMI 1.4 does allow for this behaviour, stating that sending the infoframe is optional in this case. The infoframe was first specified in HDMI 1.4, so in theory sinks predating that may not appreciate us sending an uknown infoframe their way. To avoid regressions let's try to determine if the sink supports the infoframe or not. Unfortunately there's no direct way to do that, so instead we'll just check if we managed to parse any HDMI 1.4 4k or stereo modes from the EDID, and if so we assume the sink will accept the infoframe. Also if the EDID contains the HDMI 2.0 HDMI Forum VSDB we can assume the sink is prepared to receive the infoframe. v2: Fix getting has_hdmi_infoframe from display_info Always fail constructing the infoframe if the display possibly can't handle it Cc: Shashank Sharma <shashank.sharma@intel.com> Cc: Andrzej Hajda <a.hajda@samsung.com> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Shashank Sharma <shashank.sharma@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171113170427.4150-3-ville.syrjala@linux.intel.com
2017-11-15drm/edid: Don't send non-zero YQ in AVI infoframe for HDMI 1.x sinksVille Syrjälä1-1/+2
Apparently some sinks look at the YQ bits even when receiving RGB, and they get somehow confused when they see a non-zero YQ value. So we can't just blindly follow CEA-861-F and set YQ to match the RGB range. Unfortunately there is no good way to tell whether the sink designer claims to have read CEA-861-F. The CEA extension block revision number has generally been stuck at 3 since forever, and even a very recently manufactured sink might be based on an old design so the manufacturing date doesn't seem like something we can use. In lieu of better information let's follow CEA-861-F only for HDMI 2.0 sinks, since HDMI 2.0 is based on CEA-861-F. For HDMI 1.x sinks we'll always set YQ=0. The alternative would of course be to always set YQ=0. And if we ever encounter a HDMI 2.0+ sink with this bug that's what we'll probably have to do. Cc: stable@vger.kernel.org Cc: Jani Nikula <jani.nikula@intel.com> Cc: Eric Anholt <eric@anholt.net> Cc: Neil Kownacki <njkkow@gmail.com> Reported-by: Neil Kownacki <njkkow@gmail.com> Tested-by: Neil Kownacki <njkkow@gmail.com> Fixes: fcc8a22cc905 ("drm/edid: Set YQ bits in the AVI infoframe according to CEA-861-F") Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=101639 Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171108152504.12596-1-ville.syrjala@linux.intel.com Acked-by: Eric Anholt <eric@anholt.net>
2017-11-07drm/edid: make drm_edid_to_eld() staticJani Nikula1-1/+0
This is no longer needed outside of drm_edid.c. Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Acked-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/9c0be7b97d0144ed0419c87ac42b30f5835ca7e6.1509545641.git.jani.nikula@intel.com
2017-09-19drm: add backwards compatibility support for drm_kms_helper.edid_firmwareJani Nikula1-0/+2
Add drm_kms_helper.edid_firmware module parameter with param ops hooks to set drm.edid_firmware instead, for backwards compatibility. Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Abdiel Janulgue <abdiel.janulgue@linux.intel.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Acked-by: Dave Airlie <airlied@gmail.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20170918182003.22238-2-jani.nikula@intel.com
2017-07-14drm/edid: parse ycbcr 420 deep color informationShashank Sharma1-0/+8
CEA-861-F spec adds ycbcr420 deep color support information in hf-vsdb block. This patch extends the existing hf-vsdb parsing function by adding parsing of ycbcr420 deep color support from the EDID and adding it into display information stored. V2: Rebase V3: Rebase V4: Moved definition of y420_dc_modes into this patch, where its used (Ville) V5: Optimize function, if(conditions) not reqd (Ville) V6: Rebase V7: Rebase Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Jose Abreu <joabreu@synopsys.com> Signed-off-by: Shashank Sharma <shashank.sharma@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1499960000-9232-8-git-send-email-shashank.sharma@intel.com [vsyrjala: Fix sparse indentation warn] Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
generated by cgit v1.2.3 (git 2.39.0) at 2024-09-18 09:13:01 +0300