kernel/linux.git/drivers/gpu/drm/panel, branch v4.14.86

drm/panel: type promotion bug in s6e8aa0_read_mtp_id()

2018-09-26T06:38:13+00:00

[ Upstream commit cd0e0ca69109d025b1a1b6609f70682db62138b0 ] The ARRAY_SIZE() macro is type size_t. If s6e8aa0_dcs_read() returns a negative error code, then "ret < ARRAY_SIZE(id)" is false because the negative error code is type promoted to a high positive value. Fixes: 02051ca06371 ("drm/panel: add S6E8AA0 driver") Signed-off-by: Dan Carpenter Reviewed-by: Andrzej Hajda Signed-off-by: Thierry Reding Link: https://patchwork.freedesktop.org/patch/msgid/20180704093807.s3lqsb2v6dg2k43d@kili.mountain Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

drm/panel: simple: Fix the bus format for the Ontat panel

2018-05-30T05:52:34+00:00

[ Upstream commit 5651e5e094591f479adad5830ac1bc45196a39b3 ] This fixes bad color output. When I was first testing the device I had the DPI hardware set to 666 mode, but apparently in the refactor to use the bus_format information from the panel driver, I failed to actually update the panel. Signed-off-by: Eric Anholt Fixes: e8b6f561b2ee ("drm/panel: simple: Add the 7" DPI panel from Adafruit") Cc: Thierry Reding Signed-off-by: Thierry Reding Link: https://patchwork.freedesktop.org/patch/msgid/20180309233332.1769-1-eric@anholt.net Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

drm/panel: simple: Add missing panel_simple_unprepare() calls

2017-12-05T10:26:36+00:00

commit f3621a8eb59a913612c8e6e37d81f16b649f8b6c upstream. During panel removal or system shutdown panel_simple_disable() is called which disables the panel backlight but the panel is still powered due to missing calls to panel_simple_unprepare(). Fixes: d02fd93e2cd8 ("drm/panel: simple - Disable panel on shutdown") Signed-off-by: Jonathan Liu Signed-off-by: Thierry Reding Link: https://patchwork.freedesktop.org/patch/msgid/20170807115545.27747-1-net147@gmail.com Signed-off-by: Greg Kroah-Hartman

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02T10:10:55+00:00

Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart Reviewed-by: Philippe Ombredanne Reviewed-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman

drm: Convert to using %pOF instead of full_name

2017-07-26T11:45:06+00:00

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 Cc: Russell King Cc: David Airlie Cc: Daniel Vetter Cc: Jani Nikula Cc: Sean Paul Cc: Inki Dae Cc: Joonyoung Shim Cc: Seung-Woo Kim Cc: Kyungmin Park Cc: Kukjin Kim Cc: Krzysztof Kozlowski Cc: Javier Martinez Canillas Cc: Xinliang Liu Cc: Rongrong Zou Cc: Xinwei Kong Cc: Chen Feng Cc: CK Hu Cc: Philipp Zabel Cc: Matthias Brugger Cc: Neil Armstrong Cc: Carlo Caione Cc: Kevin Hilman Cc: Thierry Reding Cc: Laurent Pinchart Cc: Mark Yao Cc: Heiko Stuebner Cc: Maxime Ripard Cc: Chen-Yu Tsai Cc: Jyri Sarha Cc: Tomi Valkeinen 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 Reviewed-by: Philipp Zabel Acked-by: Maxime Ripard [seanpaul changed subject prefix and fixed conflict in stm/ltdc.c] Signed-off-by: Sean Paul Signed-off-by: Daniel Vetter

drm/panel: s6e3ha2: Add support for s6e3hf2 panel on TM2e board

2017-06-14T18:18:22+00:00

This patch supports TM2e panel and the panel has 1600x2560 resolution in 5.65" physical. This identify panel type with compatibility string, also invoke display mode that matches the type. So add the check code for s6e3ha2 compatibility and s6e3hf2 type and select the drm_display_mode of default and edge type. Signed-off-by: Hoegeun Kwon Reviewed-by: Andrzej Hajda Reviewed-by: Inki Dae [treding@nvidia.com: fixup checkpatch warnings] Signed-off-by: Thierry Reding Link: http://patchwork.freedesktop.org/patch/msgid/1492504836-19225-3-git-send-email-hoegeun.kwon@samsung.com

drm/panel: add backlight dependency for sitronix-st7789v

2017-06-14T18:06:53+00:00

Without the dependency, we run into a link error: drivers/gpu/drm/panel/panel-sitronix-st7789v.o: In function `st7789v_probe': panel-sitronix-st7789v.c:(.text.st7789v_probe+0xc0): undefined reference to `of_find_backlight_by_node' Fixes: 7142afb3a186 ("drm/panel: Add driver for sitronix ST7789V LCD controller") Signed-off-by: Arnd Bergmann Reviewed-by: Hoegeun Kwon Signed-off-by: Thierry Reding Link: http://patchwork.freedesktop.org/patch/msgid/20170419180326.303994-1-arnd@arndb.de

drm/panel: S6E3HA2 needs backlight code

2017-06-14T18:06:27+00:00

The new S6E3HA2 driver fails to link when backlight is disabled: ERROR: "backlight_device_register" [drivers/gpu/drm/panel/panel-samsung-s6e3ha2.ko] undefined! ERROR: "backlight_device_unregister" [drivers/gpu/drm/panel/panel-samsung-s6e3ha2.ko] undefined! This adds a Kconfig dependency like we have it for some other panel drivers. Fixes: ed29f9426d9b ("drm/panel: Add support for S6E3HA2 panel driver on TM2 board") Signed-off-by: Arnd Bergmann Reviewed-by: Hoegeun Kwon Signed-off-by: Thierry Reding Link: http://patchwork.freedesktop.org/patch/msgid/20170419175939.189098-2-arnd@arndb.de

drm/panel: simple: add support for AUO P320HVN03

2017-06-14T17:37:56+00:00

This adds support for the AU Optronics Corporation 31.5" FHD (1920x1080) LVDS TFT LCD panel, which can be supported by the simple panel driver Signed-off-by: Lucas Stach Acked-by: Rob Herring Signed-off-by: Thierry Reding Link: http://patchwork.freedesktop.org/patch/msgid/20170608180758.31020-4-l.stach@pengutronix.de

drm/panel: simple: add support for NLT NL192108AC18-02D

2017-06-14T17:37:27+00:00

This adds support for the NLT Technologies NL192108AC18-02D 15.6" LVDS FullHD TFT LCD panel, which can be supported by the simple panel driver. Timings are taken from the preliminary datasheet, as a final one is not yet available. Signed-off-by: Lucas Stach Acked-by: Rob Herring Signed-off-by: Thierry Reding Link: http://patchwork.freedesktop.org/patch/msgid/20170608180758.31020-3-l.stach@pengutronix.de