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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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![Dave Airlie](/assets/img/avatar_default.png)
Cross-subsystem Changes: - Fix device tree bindings in drm-misc-next after a botched merge. Core Changes: - Docbook fix for drm_hdmi_infoframe_set_hdr_metadata. Driver Changes: - mediatek: Fix compiler warning after merging the HDR series. - vc4: Rework binner bo handling. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEuXvWqAysSYEJGuVH/lWMcqZwE8MFAlznr6oACgkQ/lWMcqZw E8Mjbw//Rf2KeOyNYOpaUjzUIXjdGNKCSLG+MYbBzJLbdj6hywAi8tS6aS89d1qW CCBzPTUWFktuUVuHqIpZwNTPLndXzPvyC9v1BafKkF6Tkod1usBMaXD1266giAbC pKkJrejqeeQtYNfAQIGDzD/ndxXptw+mwK7DgRvMIQSGYuMCm+p5cG0RBtLV7Ijv fXIromzIQ+YUuOIyGRgmXW9zDUaieztovrLtIzpYALzTPZb5dqrJiuv3SKIiB4EK mlTprRqHbHpYLHHNhFrO2blfi/50+SThEHvUBP8rkMf3nu3nhQSMQrPtxJSfL71e 1nAWvIYkLY7lKid7ugFvsZL+1L0zgG6XnsqHs5/x5x/LGDK1jVCEGG/DdsXVjGFj XH8zdLBi3PrmwbKy/HHCh6QD5Iwtg4qm8Dfjjfil4XNQDI8pK8q8TaVMZETn3YRC 63JtZq8nBnrWgT57N/28apkymsHdz2QK99Yyc+GflFhhHsoNy6LhP+OqzW11rIas ANxZrF5CR8rudtoo2QeMkHcvkbIvDTQOPPuW6LXdXuqkhi91NFmgkxCCecFfpO74 QvTiBQHrlb8zqTMZJ/j6uSBTFNOXI2NxXTKUBMJ2O3FcyVqvpL+HutVPcBuIw3mM FNvCI1M9rVH1qFOZ+t1y9ceebuHPy6xYwuak6fKDwzOwJOmOMFI= =2K7c -----END PGP SIGNATURE----- Merge tag 'drm-misc-next-2019-05-24' of git://anongit.freedesktop.org/drm/drm-misc into drm-next drm-misc-next for v5.3, try #2: UAPI Changes: - Add HDR source metadata property. - Make drm.h compile on GNU/kFreeBSD by including stdint.h - Clarify how the userspace reviewer has to review new kernel UAPI. - Clarify that for using new UAPI, merging to drm-next or drm-misc-next should be enough. Cross-subsystem Changes: - video/hdmi: Add unpack function for DRM infoframes. - Device tree bindings: * Updating a property for Mali Midgard GPUs * Updating a property for STM32 DSI panel * Adding support for FriendlyELEC HD702E 800x1280 panel * Adding support for Evervision VGG804821 800x480 5.0" WVGA TFT panel * Adding support for the EDT ET035012DM6 3.5" 320x240 QVGA 24-bit RGB TFT. * Adding support for Three Five displays TFC S9700RTWV43TR-01B 800x480 panel with resistive touch found on TI's AM335X-EVM. * Adding support for EDT ETM0430G0DH6 480x272 panel. - Add OSD101T2587-53TS driver with DT bindings. - Add Samsung S6E63M0 panel driver with DT bindings. - Add VXT VL050-8048NT-C01 800x480 panel with DT bindings. - Dma-buf: - Make mmap callback actually optional. - Documentation updates. - Fix debugfs refcount inbalance. - Remove unused sync_dump function. - Fix device tree bindings in drm-misc-next after a botched merge. Core Changes: - Add support for HDR infoframes and related EDID parsing. - Remove prime sg_table caching, now done inside dma-buf. - Add shiny new drm_gem_vram helpers for simple VRAM drivers; with some fixes to the new API on top. - Small fix to job cleanup without timeout handler. - Documentation fixes to drm_fourcc. - Replace lookups of drm_format with struct drm_format_info; remove functions that become obsolete by this conversion. - Remove double include in bridge/panel.c and some drivers. - Remove drmP.h include from drm/edid and drm/dp. - Fix null pointer deref in drm_fb_helper_hotplug_event(). - Remove most members from drm_fb_helper_crtc, only mode_set is kept. - Remove race of fb helpers with userspace; only restore mode when userspace is not master. - Move legacy setup from drm_file.c to drm_legacy_misc.c - Rework scheduler job destruction. - drm/bus was removed, remove from TODO. - Add __drm_atomic_helper_crtc_reset() to subclass crtc_state, and convert some drivers to use it (conversion is not complete yet). - Bump vblank timeout wait to 100 ms for atomic. - Docbook fix for drm_hdmi_infoframe_set_hdr_metadata. Driver Changes: - sun4i: Use DRM_GEM_CMA_VMAP_DRIVER_OPS instead of definining manually. - v3d: Small cleanups, adding support for compute shaders, reservation/synchronization fixes and job management refactoring, fixes MMU and debugfs. - lima: Fix null pointer in irq handler on startup, set default timeout for scheduled jobs. - stm/ltdc: Assorted fixes and adding FB modifier support. - amdgpu: Avoid hw reset if guilty job was already signaled. - virtio: Add seqno to fences, add trace events, use correct flags for fence allocation. - Convert AST, bochs, mgag200, vboxvideo, hisilicon to the new drm_gem_vram API. - sun6i_mipi_dsi: Support DSI GENERIC_SHORT_WRITE_2 transfers. - bochs: Small fix to use PTR_RET_OR_ZERO and driver unload. - gma500: header fixes - cirrus: Remove unused files. - mediatek: Fix compiler warning after merging the HDR series. - vc4: Rework binner bo handling. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/052875a5-27ba-3832-60c2-193d950afdff@linux.intel.com
315 lines
9.9 KiB
C
315 lines
9.9 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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drm_edid_load.c: use a built-in EDID data set or load it via the firmware
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interface
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Copyright (C) 2012 Carsten Emde <C.Emde@osadl.org>
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*/
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#include <linux/firmware.h>
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <drm/drm_crtc.h>
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#include <drm/drm_crtc_helper.h>
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#include <drm/drm_drv.h>
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#include <drm/drm_edid.h>
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#include <drm/drm_print.h>
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static char edid_firmware[PATH_MAX];
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module_param_string(edid_firmware, edid_firmware, sizeof(edid_firmware), 0644);
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MODULE_PARM_DESC(edid_firmware, "Do not probe monitor, use specified EDID blob "
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"from built-in data or /lib/firmware instead. ");
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/* Use only for backward compatibility with drm_kms_helper.edid_firmware */
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int __drm_set_edid_firmware_path(const char *path)
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{
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scnprintf(edid_firmware, sizeof(edid_firmware), "%s", path);
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return 0;
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}
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EXPORT_SYMBOL(__drm_set_edid_firmware_path);
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/* Use only for backward compatibility with drm_kms_helper.edid_firmware */
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int __drm_get_edid_firmware_path(char *buf, size_t bufsize)
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{
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return scnprintf(buf, bufsize, "%s", edid_firmware);
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}
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EXPORT_SYMBOL(__drm_get_edid_firmware_path);
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#define GENERIC_EDIDS 6
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static const char * const generic_edid_name[GENERIC_EDIDS] = {
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"edid/800x600.bin",
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"edid/1024x768.bin",
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"edid/1280x1024.bin",
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"edid/1600x1200.bin",
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"edid/1680x1050.bin",
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"edid/1920x1080.bin",
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};
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static const u8 generic_edid[GENERIC_EDIDS][128] = {
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{
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0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00,
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0x31, 0xd8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x05, 0x16, 0x01, 0x03, 0x6d, 0x1b, 0x14, 0x78,
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0xea, 0x5e, 0xc0, 0xa4, 0x59, 0x4a, 0x98, 0x25,
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0x20, 0x50, 0x54, 0x01, 0x00, 0x00, 0x45, 0x40,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0xa0, 0x0f,
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0x20, 0x00, 0x31, 0x58, 0x1c, 0x20, 0x28, 0x80,
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0x14, 0x00, 0x15, 0xd0, 0x10, 0x00, 0x00, 0x1e,
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0x00, 0x00, 0x00, 0xff, 0x00, 0x4c, 0x69, 0x6e,
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0x75, 0x78, 0x20, 0x23, 0x30, 0x0a, 0x20, 0x20,
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0x20, 0x20, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x3b,
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0x3d, 0x24, 0x26, 0x05, 0x00, 0x0a, 0x20, 0x20,
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0x20, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xfc,
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0x00, 0x4c, 0x69, 0x6e, 0x75, 0x78, 0x20, 0x53,
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0x56, 0x47, 0x41, 0x0a, 0x20, 0x20, 0x00, 0xc2,
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},
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{
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0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00,
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0x31, 0xd8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x05, 0x16, 0x01, 0x03, 0x6d, 0x23, 0x1a, 0x78,
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0xea, 0x5e, 0xc0, 0xa4, 0x59, 0x4a, 0x98, 0x25,
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0x20, 0x50, 0x54, 0x00, 0x08, 0x00, 0x61, 0x40,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x64, 0x19,
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0x00, 0x40, 0x41, 0x00, 0x26, 0x30, 0x08, 0x90,
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0x36, 0x00, 0x63, 0x0a, 0x11, 0x00, 0x00, 0x18,
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0x00, 0x00, 0x00, 0xff, 0x00, 0x4c, 0x69, 0x6e,
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0x75, 0x78, 0x20, 0x23, 0x30, 0x0a, 0x20, 0x20,
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0x20, 0x20, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x3b,
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0x3d, 0x2f, 0x31, 0x07, 0x00, 0x0a, 0x20, 0x20,
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0x20, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xfc,
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0x00, 0x4c, 0x69, 0x6e, 0x75, 0x78, 0x20, 0x58,
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0x47, 0x41, 0x0a, 0x20, 0x20, 0x20, 0x00, 0x55,
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},
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{
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0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00,
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0x31, 0xd8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x05, 0x16, 0x01, 0x03, 0x6d, 0x2c, 0x23, 0x78,
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0xea, 0x5e, 0xc0, 0xa4, 0x59, 0x4a, 0x98, 0x25,
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0x20, 0x50, 0x54, 0x00, 0x00, 0x00, 0x81, 0x80,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x30, 0x2a,
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0x00, 0x98, 0x51, 0x00, 0x2a, 0x40, 0x30, 0x70,
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0x13, 0x00, 0xbc, 0x63, 0x11, 0x00, 0x00, 0x1e,
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0x00, 0x00, 0x00, 0xff, 0x00, 0x4c, 0x69, 0x6e,
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0x75, 0x78, 0x20, 0x23, 0x30, 0x0a, 0x20, 0x20,
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0x20, 0x20, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x3b,
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0x3d, 0x3e, 0x40, 0x0b, 0x00, 0x0a, 0x20, 0x20,
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0x20, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xfc,
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0x00, 0x4c, 0x69, 0x6e, 0x75, 0x78, 0x20, 0x53,
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0x58, 0x47, 0x41, 0x0a, 0x20, 0x20, 0x00, 0xa0,
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},
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{
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0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00,
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0x31, 0xd8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x05, 0x16, 0x01, 0x03, 0x6d, 0x37, 0x29, 0x78,
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0xea, 0x5e, 0xc0, 0xa4, 0x59, 0x4a, 0x98, 0x25,
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0x20, 0x50, 0x54, 0x00, 0x00, 0x00, 0xa9, 0x40,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x48, 0x3f,
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0x40, 0x30, 0x62, 0xb0, 0x32, 0x40, 0x40, 0xc0,
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0x13, 0x00, 0x2b, 0xa0, 0x21, 0x00, 0x00, 0x1e,
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0x00, 0x00, 0x00, 0xff, 0x00, 0x4c, 0x69, 0x6e,
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0x75, 0x78, 0x20, 0x23, 0x30, 0x0a, 0x20, 0x20,
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0x20, 0x20, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x3b,
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0x3d, 0x4a, 0x4c, 0x11, 0x00, 0x0a, 0x20, 0x20,
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0x20, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xfc,
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0x00, 0x4c, 0x69, 0x6e, 0x75, 0x78, 0x20, 0x55,
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0x58, 0x47, 0x41, 0x0a, 0x20, 0x20, 0x00, 0x9d,
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},
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{
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0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00,
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0x31, 0xd8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x05, 0x16, 0x01, 0x03, 0x6d, 0x2b, 0x1b, 0x78,
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0xea, 0x5e, 0xc0, 0xa4, 0x59, 0x4a, 0x98, 0x25,
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0x20, 0x50, 0x54, 0x00, 0x00, 0x00, 0xb3, 0x00,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x21, 0x39,
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0x90, 0x30, 0x62, 0x1a, 0x27, 0x40, 0x68, 0xb0,
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0x36, 0x00, 0xb5, 0x11, 0x11, 0x00, 0x00, 0x1e,
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0x00, 0x00, 0x00, 0xff, 0x00, 0x4c, 0x69, 0x6e,
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0x75, 0x78, 0x20, 0x23, 0x30, 0x0a, 0x20, 0x20,
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0x20, 0x20, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x3b,
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0x3d, 0x40, 0x42, 0x0f, 0x00, 0x0a, 0x20, 0x20,
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0x20, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xfc,
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0x00, 0x4c, 0x69, 0x6e, 0x75, 0x78, 0x20, 0x57,
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0x53, 0x58, 0x47, 0x41, 0x0a, 0x20, 0x00, 0x26,
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},
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{
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0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00,
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0x31, 0xd8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x05, 0x16, 0x01, 0x03, 0x6d, 0x32, 0x1c, 0x78,
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0xea, 0x5e, 0xc0, 0xa4, 0x59, 0x4a, 0x98, 0x25,
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0x20, 0x50, 0x54, 0x00, 0x00, 0x00, 0xd1, 0xc0,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x3a,
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0x80, 0x18, 0x71, 0x38, 0x2d, 0x40, 0x58, 0x2c,
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0x45, 0x00, 0xf4, 0x19, 0x11, 0x00, 0x00, 0x1e,
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0x00, 0x00, 0x00, 0xff, 0x00, 0x4c, 0x69, 0x6e,
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0x75, 0x78, 0x20, 0x23, 0x30, 0x0a, 0x20, 0x20,
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0x20, 0x20, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x3b,
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0x3d, 0x42, 0x44, 0x0f, 0x00, 0x0a, 0x20, 0x20,
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0x20, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xfc,
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0x00, 0x4c, 0x69, 0x6e, 0x75, 0x78, 0x20, 0x46,
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0x48, 0x44, 0x0a, 0x20, 0x20, 0x20, 0x00, 0x05,
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},
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};
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static int edid_size(const u8 *edid, int data_size)
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{
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if (data_size < EDID_LENGTH)
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return 0;
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return (edid[0x7e] + 1) * EDID_LENGTH;
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}
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static void *edid_load(struct drm_connector *connector, const char *name,
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const char *connector_name)
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{
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const struct firmware *fw = NULL;
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const u8 *fwdata;
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u8 *edid;
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int fwsize, builtin;
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int i, valid_extensions = 0;
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bool print_bad_edid = !connector->bad_edid_counter || (drm_debug & DRM_UT_KMS);
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builtin = match_string(generic_edid_name, GENERIC_EDIDS, name);
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if (builtin >= 0) {
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fwdata = generic_edid[builtin];
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fwsize = sizeof(generic_edid[builtin]);
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} else {
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struct platform_device *pdev;
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int err;
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pdev = platform_device_register_simple(connector_name, -1, NULL, 0);
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if (IS_ERR(pdev)) {
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DRM_ERROR("Failed to register EDID firmware platform device "
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"for connector \"%s\"\n", connector_name);
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return ERR_CAST(pdev);
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}
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err = request_firmware(&fw, name, &pdev->dev);
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platform_device_unregister(pdev);
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if (err) {
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DRM_ERROR("Requesting EDID firmware \"%s\" failed (err=%d)\n",
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name, err);
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return ERR_PTR(err);
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}
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fwdata = fw->data;
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fwsize = fw->size;
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}
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if (edid_size(fwdata, fwsize) != fwsize) {
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DRM_ERROR("Size of EDID firmware \"%s\" is invalid "
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"(expected %d, got %d\n", name,
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edid_size(fwdata, fwsize), (int)fwsize);
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edid = ERR_PTR(-EINVAL);
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goto out;
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}
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edid = kmemdup(fwdata, fwsize, GFP_KERNEL);
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if (edid == NULL) {
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edid = ERR_PTR(-ENOMEM);
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goto out;
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}
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if (!drm_edid_block_valid(edid, 0, print_bad_edid,
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&connector->edid_corrupt)) {
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connector->bad_edid_counter++;
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DRM_ERROR("Base block of EDID firmware \"%s\" is invalid ",
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name);
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kfree(edid);
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edid = ERR_PTR(-EINVAL);
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goto out;
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}
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for (i = 1; i <= edid[0x7e]; i++) {
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if (i != valid_extensions + 1)
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memcpy(edid + (valid_extensions + 1) * EDID_LENGTH,
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edid + i * EDID_LENGTH, EDID_LENGTH);
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if (drm_edid_block_valid(edid + i * EDID_LENGTH, i,
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print_bad_edid,
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NULL))
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valid_extensions++;
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}
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if (valid_extensions != edid[0x7e]) {
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u8 *new_edid;
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edid[EDID_LENGTH-1] += edid[0x7e] - valid_extensions;
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DRM_INFO("Found %d valid extensions instead of %d in EDID data "
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"\"%s\" for connector \"%s\"\n", valid_extensions,
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edid[0x7e], name, connector_name);
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edid[0x7e] = valid_extensions;
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new_edid = krealloc(edid, (valid_extensions + 1) * EDID_LENGTH,
|
|
GFP_KERNEL);
|
|
if (new_edid)
|
|
edid = new_edid;
|
|
}
|
|
|
|
DRM_INFO("Got %s EDID base block and %d extension%s from "
|
|
"\"%s\" for connector \"%s\"\n", (builtin >= 0) ? "built-in" :
|
|
"external", valid_extensions, valid_extensions == 1 ? "" : "s",
|
|
name, connector_name);
|
|
|
|
out:
|
|
release_firmware(fw);
|
|
return edid;
|
|
}
|
|
|
|
struct edid *drm_load_edid_firmware(struct drm_connector *connector)
|
|
{
|
|
const char *connector_name = connector->name;
|
|
char *edidname, *last, *colon, *fwstr, *edidstr, *fallback = NULL;
|
|
struct edid *edid;
|
|
|
|
if (edid_firmware[0] == '\0')
|
|
return ERR_PTR(-ENOENT);
|
|
|
|
/*
|
|
* If there are multiple edid files specified and separated
|
|
* by commas, search through the list looking for one that
|
|
* matches the connector.
|
|
*
|
|
* If there's one or more that doesn't specify a connector, keep
|
|
* the last one found one as a fallback.
|
|
*/
|
|
fwstr = kstrdup(edid_firmware, GFP_KERNEL);
|
|
edidstr = fwstr;
|
|
|
|
while ((edidname = strsep(&edidstr, ","))) {
|
|
colon = strchr(edidname, ':');
|
|
if (colon != NULL) {
|
|
if (strncmp(connector_name, edidname, colon - edidname))
|
|
continue;
|
|
edidname = colon + 1;
|
|
break;
|
|
}
|
|
|
|
if (*edidname != '\0') /* corner case: multiple ',' */
|
|
fallback = edidname;
|
|
}
|
|
|
|
if (!edidname) {
|
|
if (!fallback) {
|
|
kfree(fwstr);
|
|
return ERR_PTR(-ENOENT);
|
|
}
|
|
edidname = fallback;
|
|
}
|
|
|
|
last = edidname + strlen(edidname) - 1;
|
|
if (*last == '\n')
|
|
*last = '\0';
|
|
|
|
edid = edid_load(connector, edidname, connector_name);
|
|
kfree(fwstr);
|
|
|
|
return edid;
|
|
}
|