user/sven/linux.git/drivers/gpu/drm/sun4i, branch v4.18.8

drm/sun4i: link in front-end code if needed

2018-07-09T07:54:33Z

When the base sun4i DRM driver is built-in but the back-end is a loadable module, we run into a link error: drivers/gpu/drm/sun4i/sun4i_drv.o: In function `sun4i_drv_probe': sun4i_drv.c:(.text+0x60c): undefined reference to `sun4i_frontend_of_table' The dependency is a bit tricky, the best workaround I have come up with is to use a Makefile hack to to interpret both CONFIG_DRM_SUN4I_BACKEND=m and CONFIG_DRM_SUN4I_BACKEND=y as a directive to build the front-end the same way as the main module. Fixes: dd0421f47505 ("drm/sun4i: Add a driver for the display frontend") Link: https://lore.kernel.org/lkml/20180301091908.zcptz3ezqr2c6ly5@flea/ Signed-off-by: Arnd Bergmann Signed-off-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/20180706142847.2032381-1-arnd@arndb.de

Merge tag 'drm-misc-fixes-2018-06-21' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

2018-06-22T01:03:43Z

Fixes for v4.18-rc2: - A reversion of a commit in drm/sun4i to fix a run-time fault. - Various fixes to the sii8620 bridge. - Small bugfix to correctly check stride in atmel-hlcdc. Signed-off-by: Dave Airlie Link: https://patchwork.freedesktop.org/patch/msgid/787d4bef-a579-4046-d0fc-f8c2c5b80c25@linux.intel.com

Revert "drm/sun4i: Handle DRM_BUS_FLAG_PIXDATA_*EDGE"

2018-06-18T08:02:11Z

This reverts commit 2c17a4368aad2b88b68e4390c819e226cf320f70. The offending commit triggers a run-time fault when accessing the panel element of the sun4i_tcon structure when no such panel is attached. It was apparently assumed in said commit that a panel is always used with the TCON. Although it is often the case, this is not always true. For instance a bridge might be used instead of a panel. This issue was discovered using an A13-OLinuXino, that uses the TCON in RGB mode for a simple DAC-based VGA bridge. Cc: stable@vger.kernel.org Signed-off-by: Paul Kocialkowski Signed-off-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/20180613081647.31183-1-paul.kocialkowski@bootlin.com

Merge tag 'drm-misc-next-2018-04-26' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

2018-04-29T23:32:43Z

drm-misc-next for v4.18: UAPI Changes: - Add support for a generic plane alpha property to sun4i, rcar-du and atmel-hclcdc. (Maxime) Core Changes: - Stop looking at legacy plane->fb and crtc members in atomic drivers. (Ville) - mode_valid return type fixes. (Luc) - Handle zpos normalization in the core. (Peter) Driver Changes: - Implement CTM, plane alpha and generic async cursor support in vc4. (Stefan) - Various fixes for HPD and aux chan in drm_bridge/analogix_dp. (Lin, Zain, Douglas) - Add support for MIPI DSI to sun4i. (Maxime) Signed-off-by: Dave Airlie # gpg: Signature made Thu 26 Apr 2018 08:21:01 PM AEST # gpg: using RSA key FE558C72A67013C3 # gpg: Can't check signature: public key not found Link: https://patchwork.freedesktop.org/patch/msgid/b33da7eb-efc9-ae6f-6f69-b7acd6df6797@mblankhorst.nl

Revert "drm/sun4i: add lvds mode_valid function"

2018-04-25T19:03:12Z

The reverted commit broke LVDS output on TBS A711 Tablet. That tablet has simple-panel node that has fixed pixel clock-frequency that A83T SoC used in the tablet can't generate exactly. Requested rate is 52000000 and rounded_rate is calculated as 51857142. It's close enough for it to work in practice, but with strict check in the reverted commit, the mode is rejected needlessly in this case. DT allows to specify a range of values for simple-panel/clock-frequency, but driver doesn't respect that ATM. Given that TBS A711 is the single user of sun4i-lvds driver, let's revert that commit for now, until a better solution for the problem is found. Also see: https://patchwork.kernel.org/patch/9446385/ for relevant discussion (or search for "[RFC] drm/sun4i: rgb: Add 5% tolerance to dot clock frequency check"). Fixes: e4e4b7ad50cf ("drm/sun4i: add lvds mode_valid function") Reported-by: Ondrej Jirman Signed-off-by: Ondrej Jirman Signed-off-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/20180421045155.15332-1-megous@megous.com Signed-off-by: Sean Paul

drm/sun4i: Add support for plane alpha

2018-04-16T19:21:16Z

Our backend supports a per-plane alpha property. Support it through our new helper. Acked-by: Maarten Lankhorst Acked-by: Sean Paul Reviewed-by: Chen-Yu Tsai Reviewed-by: Paul Kocialkowski Signed-off-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/13e89f0d2f2b55752a22eb8c4f37f325246a3a9c.1523432341.git-series.maxime.ripard@bootlin.com

drm/sun4i: Tie the DSI controller in the TCON

2018-04-11T11:19:28Z

The DSI controller needs a particular interface (CPU aka 8080) with some modifications from the TCON in order to run. Make sure the TCON is able to provide it when we are using the DSI output. Reviewed-by: Chen-Yu Tsai Signed-off-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/129f5928113d2ca865bf5269047c2e4ba6fed5e6.1522835818.git-series.maxime.ripard@bootlin.com

drm/sun4i: Add Allwinner A31 MIPI-DSI controller support

2018-04-11T11:19:17Z

Most of the Allwinner SoCs since the A31 share the same MIPI-DSI controller. While that controller is mostly undocumented, the code is out there and has been cleaned up in order to be integrated into DRM. However, there's still some dark areas that are a bit unclear about how the block exactly operates. Reviewed-by: Chen-Yu Tsai Signed-off-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/ad9e6224fced87c0889ddd2765d1942610061f72.1522835818.git-series.maxime.ripard@bootlin.com

drm/sun4i: tcon: Add TRI finish interrupt for vblank

2018-04-11T11:19:06Z

The "CPU" (or Intel 8080) interface uses a different interrupt called TRI_FINISH (most likely TRI being for trigger) to notify the end of frames, and hence the VBLANK period. And that interrupt to the possible VBLANK interrupts source. Reviewed-by: Chen-Yu Tsai Signed-off-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/de6d6ad8959da77ea3a974a31a4c0c8391178748.1522835818.git-series.maxime.ripard@bootlin.com

Backmerge tag 'v4.16-rc7' into drm-next

2018-03-28T04:30:41Z

Linux 4.16-rc7 This was requested by Daniel, and things were getting a bit hard to reconcile, most of the conflicts were trivial though.