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2018-07-30BackMerge v4.18-rc7 into drm-nextDave Airlie1-1/+4
rmk requested this for armada and I think we've had a few conflicts build up. Signed-off-by: Dave Airlie <airlied@redhat.com>
2018-07-18drm/sun4i: Substitute sun4i_backend_format_is_yuv() with format->is_yuvAyan Kumar Halder1-9/+3
drm_format_info table has a field 'is_yuv' to denote if the format is yuv or not. The driver is expected to use this instead of having a function for the same purpose. Signed-off-by: Ayan Kumar halder <ayan.halder@arm.com> Reviewed-by: Ville Syrjala <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/1531847626-22248-5-git-send-email-ayan.halder@arm.com
2018-07-17drm/sun4i: sun8i: Avoid clearing blending order at each atomic commitPaul Kocialkowski3-20/+43
Blending order is set based on the z position of each DRM plane. The blending order register is currently cleared at each atomic DRM commit, with the intent that each committed plane will set the appropriate bits (based on its z-pos) when enabling the plane. However, it sometimes happens that a particular plane is left unchanged by an atomic commit and thus will not be configured again. In that scenario, blending order is cleared and only the bits relevant for the planes affected by the commit are set. This leaves the planes that did not change without their blending order set in the register, leading to that plane not being displayed. Instead of clearing the blending order register at every atomic commit, this change moves the register's initial clear at bind time and only clears the bits for a specific plane when disabling it or changing its zpos. This way, planes that are left untouched by a DRM atomic commit are no longer disabled. Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180717122522.11327-1-paul.kocialkowski@bootlin.com
2018-07-17drm/sun4i: Replace drm_dev_unref with drm_dev_putThomas Zimmermann1-2/+2
This patch unifies the naming of DRM functions for reference counting of struct drm_device. The resulting code is more aligned with the rest of the Linux kernel interfaces. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180717084814.18091-1-tzimmermann@suse.de
2018-07-13drm: drop _mode_ from drm_mode_connector_attach_encoderDaniel Vetter5-5/+5
Again to align with the usual prefix of just drm_connector_. Again done with sed + manual fixup for indent issues. Reviewed-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180709084016.23750-7-daniel.vetter@ffwll.ch
2018-07-13drm: drop _mode_ from update_edit_property()Daniel Vetter1-1/+1
Just makes it longer, and for most things in drm_connector.[hc] we just use the drm_connector_ prefix. Done with sed + a bit of manual fixup for the indenting. Reviewed-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180709084016.23750-6-daniel.vetter@ffwll.ch
2018-07-12drm/sun4i: tcon-top: Fix return type warningMaxime Ripard1-1/+1
When commit af11942ee44e ("drm/sun4i: tcon-top: Cleanup clock handling") was merged, the error handling path of the of_property_match_string was changed to take into account the fact that the returned value of that function wasn't an error pointer but an error code. Unfortunately, this introduced a warning since the now returned value is an integer, while the sun8i_tcon_top_register_gate function should return an error pointer. Fix that by calling ERR_PTR. Cc: Jernej Skrabec <jernej.skrabec@siol.net> Cc: Chen-Yu Tsai <wens@csie.org> Fixes: af11942ee44e ("drm/sun4i: tcon-top: Cleanup clock handling") Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reported-by: kbuild test robot <lkp@intel.com> Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180712080818.3571-1-maxime.ripard@bootlin.com
2018-07-12drm/sun4i: Implement zpos for DE2Jernej Skrabec4-37/+72
Initial implementation of DE2 planes only supported fixed zpos. Expand implementation with configurable zpos property. Implementation background: Channel in DE2 driver represents one DRM plane, whereas pipe is just mapped channel to known Z position. Pipe 0 will always be at the bottom, pipe 1 just above pipe 0 and so on. If, for example, channel 1 is mapped at pipe 0 and channel 0 at pipe 1, whatever is on channel 0 will appear on top. Before this commit, channel id was used for addressing channel related registers (prefixed with SUN8I_MIXER_CHAN_UI_ or SUN8I_MIXER_CHAN_VI_) and pipe registers (prefixed with SUN8I_MIXER_BLEND_). Additionally, register SUN8I_MIXER_BLEND_ROUTE, which takes care for mapping channels to pipes had fixed value. It mapped channel 0 to pipe 0, 1 to 1 and so on. Consequence of all that was fixed Z order of planes. With this commit, pipe registers are using zpos property as index and channel related registers still use channel id as index. Pipe mapping register is now set dynamically too and pipe enable register is rebuild every time to make sure only active pipes are enabled. Testing was done to confirm that there is no issues if bottom plane contains pixels with alpha value < 0xff and if it doesn't whole screen. Tested-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com> Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180706164732.24166-1-jernej.skrabec@siol.net
2018-07-12drm/sun4i: fix build failure with CONFIG_DRM_SUN8I_MIXER=mArnd Bergmann4-3/+13
Having DRM_SUN4I built-in but DRM_SUN8I_MIXER as a loadable module results in a link error, as we try to access a symbol from the sun8i_tcon_top.ko module: ERROR: "sun8i_tcon_top_of_table" [drivers/gpu/drm/sun4i/sun8i-drm-hdmi.ko] undefined! ERROR: "sun8i_tcon_top_of_table" [drivers/gpu/drm/sun4i/sun4i-drm.ko] undefined! This solves the problem by adding a silent symbol for the tcon_top module, building it as a separate module in exactly the cases that we need it, but in a way that it is reachable by the other modules. Fixes: 57e23de02f48 ("drm/sun4i: DW HDMI: Expand algorithm for possible crtcs") Fixes: ef0cf6441fbb ("drm/sun4i: Add support for traversing graph with TCON TOP") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180711144403.1022829-1-arnd@arndb.de
2018-07-12drm/sun4i: mixer: Read id from DTJernej Skrabec1-2/+47
Currently, TCON supports 2 ways to match TCON with engine (mixer in this case). Old way is to just traverse of graph backwards and compare node pointer. New way is to match TCON and engine by their respective ids. All SoCs with DE2 enabled till now used the old way, which means mixer id was never used and thus never implemented. However, for R40, only the new way will be used. To prepare for that, implement mixer id fetching from DT. Reviewed-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180711112706.30222-1-jernej.skrabec@siol.net
2018-07-12drm/sun4i: DW HDMI: Make symbol sun8i_dw_hdmi_pltfm_driver staticWei Yongjun1-1/+1
Fixes the following sparse warning: drivers/gpu/drm/sun4i/sun8i_dw_hdmi.c:228:24: warning: symbol 'sun8i_dw_hdmi_pltfm_driver' was not declared. Should it be static? Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/1531315367-190647-1-git-send-email-weiyongjun1@huawei.com
2018-07-11drm/sun4i: tcon-top: Remove mux configuration at probe timeJernej Skrabec1-75/+1
Now that R40 TCON migrated to runtime mux configuration, old code can be removed. Reviewed-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180710203511.18454-18-jernej.skrabec@siol.net
2018-07-11drm/sun4i: tcon-top: Add helpers for mux switchingJernej Skrabec2-0/+78
We want to be able to set TCON TOP muxes at runtime. Add helpers for that. Old, static configuration of muxes at probe time is preserved for now. It will be removed when R40 TCON starts using them. Reviewed-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180710203511.18454-12-jernej.skrabec@siol.net
2018-07-11drm/sun4i: mixer: Order includes alphabeticallyJernej Skrabec1-1/+1
Includes are not alphabetically ordered. Reorder them. Reviewed-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180710203511.18454-10-jernej.skrabec@siol.net
2018-07-11drm/sun4i: DW HDMI: Release nodes if error happens during CRTC searchJernej Skrabec1-10/+5
If error happens in sun8i_dw_hdmi_find_possible_crtcs(), nodes are not released with of_node_put() before returning. Fix that by calling of_node_put() when necessary. While on it, clean up the code by using of_graph_get_remote_node() which also lowers number of cases where error handling has to be performed. Fixes: 57e23de02f48 ("drm/sun4i: DW HDMI: Expand algorithm for possible crtcs") Reviewed-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180710203511.18454-8-jernej.skrabec@siol.net
2018-07-11drm/sun4i: tcon: Release node when traversing of graphJernej Skrabec1-0/+1
Function sun4i_tcon_find_engine_traverse() doesn't release node if it needs to traverse of graph deeper than 1 level. Fix this by calling of_node_put(). Fixes: 49836b11fe71 ("drm/sun4i: tcon: Generalize engine search algorithm") Reviewed-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180710203511.18454-6-jernej.skrabec@siol.net
2018-07-11drm/sun4i: tcon-top: Cleanup clock handlingJernej Skrabec1-37/+11
There is no need to acquire reference to clock just to get its name. This commit just cleans up the code. There is no functional change. Reviewed-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> [Maxime: Fixed the of_property_match_string error check] Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180710203511.18454-5-jernej.skrabec@siol.net
2018-07-11drm/sun4i: Add R40 display engine compatibleJernej Skrabec1-0/+1
R40 has versatile display pipeline. It supports two simultanious outputs on various outputs (TVE, VGA, HDMI, MIPI DSI, LCD). Reviewed-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180710203511.18454-3-jernej.skrabec@siol.net
2018-07-10drm/panel: Make of_drm_find_panel() return an ERR_PTR() instead of NULLBoris Brezillon1-2/+2
Right now, the DRM panel logic returns NULL when a panel pointing to the passed OF node is not present in the list of registered panels. Most drivers interpret this NULL value as -EPROBE_DEFER, but we are about to modify the semantic of of_drm_find_panel() and let the framework return -ENODEV when the device node we're pointing to has a status property that is not equal to "okay" or "ok". Let's first patch the of_drm_find_panel() implementation to return ERR_PTR(-EPROBE_DEFER) instead of NULL and patch all callers to replace the '!panel' check by an 'IS_ERR(panel)' one. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Thierry Reding <treding@nvidia.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180509130042.9435-2-boris.brezillon@bootlin.com
2018-07-09drm/sun4i: link in front-end code if neededArnd Bergmann1-1/+4
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 <arnd@arndb.de> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180706142847.2032381-1-arnd@arndb.de
2018-07-04drm/sun4i: Remove VLA usageKees Cook1-43/+64
In the quest to remove all stack VLA usage from the kernel[1], this switches to using a kmalloc allocation and moves all the size calculations to the start to do an allocation. If an upper bounds on the mode timing calculations could be determined, a fixed stack size could be used instead. [1] https://lkml.kernel.org/r/CA+55aFzCG-zNmZwX4A2FQpadafLfEzK6CC=qPXydAacU1RqZWA@mail.gmail.com Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180629184740.GA37415@beast
2018-07-02drm/sun4i: Use drm_crtc_mask()Ville Syrjälä3-3/+3
Use drm_crtc_mask() where appropriate. Cc: Maxime Ripard <maxime.ripard@bootlin.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180626194716.12522-8-ville.syrjala@linux.intel.com Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2018-06-29Merge tag 'ib-fbdev-drm-v4.19-deferred-console-takeover' of ↵Gustavo Padovan1-25/+0
https://github.com/bzolnier/linux into drm-misc-next Immutable branch between fbdev and drm for the v4.19 merge window (contains the deferred console takeover feature) Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.com> # gpg: Signature made Thu 28 Jun 2018 10:24:50 AM -03 # gpg: using RSA key 7E33B63FA047C20B # gpg: Can't check signature: public key not found # Conflicts: # drivers/gpu/drm/i915/i915_gem.c # drivers/gpu/drm/i915/intel_crt.c # drivers/gpu/drm/i915/intel_display.c # drivers/gpu/drm/i915/intel_lrc.c Link: https://patchwork.freedesktop.org/patch/msgid/2462549.rLSfW9kX99@amdc3058
2018-06-27drm/sun4i: DW HDMI: Expand algorithm for possible crtcsJernej Skrabec1-1/+45
drm_of_find_possible_crtcs() doesn't work when DW HDMI encoder is connected to TCON (crtc) through mux in TCON TOP. In that case TCON TOP HDMI mux input port has to be manually traversed and checked if it matches any known crtc. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180625120304.7543-23-jernej.skrabec@siol.net
2018-06-27drm/sun4i: Add support for A64 HDMI PHYJernej Skrabec1-0/+12
PHY is the same as in H3, except it can switch between two clock parents. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180625120304.7543-21-jernej.skrabec@siol.net
2018-06-27drm/sun4i: Add support for second clock parent to DW HDMI PHY clk driverJernej Skrabec3-24/+73
Expand HDMI PHY clock driver to support second clock parent. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180625120304.7543-20-jernej.skrabec@siol.net
2018-06-27drm/sun4i: DW HDMI PHY: Add support for second PLLJernej Skrabec2-5/+17
Some DW HDMI PHYs, like those found in A64 and R40 SoCs, can select between two clock parents. Add code which reads second PLL from DT. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180625120304.7543-19-jernej.skrabec@siol.net
2018-06-27drm/sun4i: Don't change clock bits in DW HDMI PHY driverJernej Skrabec2-2/+12
DW HDMI PHY driver and PHY clock driver share same registers. Make sure that DW HDMI PHY setup code doesn't change any clock related bits. During initialization, set PHY PLL parent bit to 0. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180625120304.7543-18-jernej.skrabec@siol.net
2018-06-27drm/sun4i: Enable DW HDMI PHY clockJernej Skrabec1-1/+6
Current DW HDMI PHY code never prepares and enables PHY clock after it is created. It's just used as it is. This may work in some cases, but it's clearly wrong. Fix it by adding proper calls to enable/disable PHY clock. Fixes: 4f86e81748fe ("drm/sun4i: Add support for H3 HDMI PHY variant") Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180625120304.7543-17-jernej.skrabec@siol.net
2018-06-27drm/sun4i: Add support for R40 mixersJernej Skrabec1-0/+24
Both mixers have similar capabilities as others SoCs with DE2. First mixer has 1 VI and 3 UI planes and supports HW scaling on all planes. Second mixer has 1 VI and 1 UI planes and also supports HW scaling on all planes. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180625120304.7543-15-jernej.skrabec@siol.net
2018-06-27drm/sun4i: Don't check for panel or bridge on TV TCONsJernej Skrabec1-3/+9
TV TCONs are always connected to TV or HDMI encoder, so it doesn't make sense to check if panel or bridge is connected to them. Check if TCON has channel 0 and only then check for connected panel or bridges. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180625120304.7543-13-jernej.skrabec@siol.net
2018-06-27drm/sun4i: Don't check for LVDS and RGB when TCON has only ch1Jernej Skrabec1-15/+17
LVDS and RGB interfaces are always connected to TCONs which have channel 0. It doesn't make sense to try to init them on TV TCONs. Add a check if TCON has channel 0 before trying to init LVDS or RGB interface. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180625120304.7543-12-jernej.skrabec@siol.net
2018-06-27drm/sun4i: tcon: Generalize engine search algorithmJernej Skrabec1-4/+18
Current "old" method to find engine worked pretty well for DE2. However, it doesn't work when TCON TOP is between mixer (engine) and TCON. TCON TOP has multiple input ports, but current engine search algorithm expects only one. This can be fixed by first looking for output port id and selecting matching input by subtracting 1 for the next round. This work even if there is only one input and output. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180625120304.7543-11-jernej.skrabec@siol.net
2018-06-27drm/sun4i: Don't skip TCONs if they don't have channel 0Jernej Skrabec1-17/+35
TV TCONs (channel 1 only) are always connected to TV or HDMI encoder. Because of that, all output endpoints on such TCON node will point to a encoder which is part of component framework. Correct current graph traversing algorithm in such way that it doesn't skip output enpoints with id 0 on TV TCONs. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180625120304.7543-10-jernej.skrabec@siol.net
2018-06-27drm/sun4i: Add support for traversing graph with TCON TOPJernej Skrabec1-0/+24
TCON TOP is different from other nodes in graph by having 3 input and 3 output ports. Additionally, connection to TV TCON might lead back to HDMI mux input port, creating loops. Add support for traversing such graph. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180625120304.7543-9-jernej.skrabec@siol.net
2018-06-27drm/sun4i: Split out code for enumerating endpoints in output portJernej Skrabec1-38/+46
Until now, each node has one input port and one output port. However, with TCON TOP this is no longer true. It has 3 input and 3 output ports. In order to prepare to this situation, split out the code which checks all endpoints in input port and adds available components to fifo. This patch doesn't do any functional change. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180625120304.7543-8-jernej.skrabec@siol.net
2018-06-27drm/sun4i: Fix releasing node when enumerating enpointsJernej Skrabec1-1/+2
sun4i_drv_add_endpoints() has a memory leak since it uses of_node_put() when remote is equal to NULL and does nothing when remote has a valid pointer. Invert the logic to fix memory leak. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180625120304.7543-7-jernej.skrabec@siol.net
2018-06-27drm/sun4i: Add TCON TOP driverJernej Skrabec3-1/+341
As already described in DT binding, TCON TOP is responsible for configuring display pipeline. In this initial driver focus is on HDMI pipeline, so TVE and LCD configuration is not implemented. Implemented features: - HDMI source selection - clock driver (TCON and DSI gating) - connecting mixers and TCONS Something similar also existed in previous SoCs, except that it was part of first TCON. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180625120304.7543-6-jernej.skrabec@siol.net
2018-06-22Merge tag 'drm-misc-fixes-2018-06-21' of ↵Dave Airlie1-25/+0
git://anongit.freedesktop.org/drm/drm-misc into drm-fixes 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 <airlied@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/787d4bef-a579-4046-d0fc-f8c2c5b80c25@linux.intel.com
2018-06-18Revert "drm/sun4i: Handle DRM_BUS_FLAG_PIXDATA_*EDGE"Paul Kocialkowski1-25/+0
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 <paul.kocialkowski@bootlin.com> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180613081647.31183-1-paul.kocialkowski@bootlin.com
2018-05-28drm/sun4i: mark PM functions as __maybe_unusedArnd Bergmann1-2/+2
Disabling CONFIG_PM produces a compile time warning when these functions are not referenced: drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c:1072:12: error: 'sun6i_dsi_runtime_suspend' defined but not used [-Werror=unused-function] static int sun6i_dsi_runtime_suspend(struct device *dev) ^~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c:1043:12: error: 'sun6i_dsi_runtime_resume' defined but not used [-Werror=unused-function] static int sun6i_dsi_runtime_resume(struct device *dev) ^~~~~~~~~~~~~~~~~~~~~~~~ Fixes: 133add5b5ad4 ("drm/sun4i: Add Allwinner A31 MIPI-DSI controller support") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180525155030.3667352-1-arnd@arndb.de
2018-04-30Merge tag 'drm-misc-next-2018-04-26' of ↵Dave Airlie10-6/+1623
git://anongit.freedesktop.org/drm/drm-misc into drm-next 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 <airlied@redhat.com> # 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
2018-04-25Revert "drm/sun4i: add lvds mode_valid function"Ondrej Jirman1-55/+0
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 <megous@megous.com> Signed-off-by: Ondrej Jirman <megous@megous.com> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180421045155.15332-1-megous@megous.com Signed-off-by: Sean Paul <seanpaul@chromium.org>
2018-04-16drm/sun4i: Add support for plane alphaMaxime Ripard3-3/+18
Our backend supports a per-plane alpha property. Support it through our new helper. Acked-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Acked-by: Sean Paul <seanpaul@chromium.org> Reviewed-by: Chen-Yu Tsai <wens@csie.org> Reviewed-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/13e89f0d2f2b55752a22eb8c4f37f325246a3a9c.1523432341.git-series.maxime.ripard@bootlin.com
2018-04-11drm/sun4i: Tie the DSI controller in the TCONMaxime Ripard2-0/+119
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 <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/129f5928113d2ca865bf5269047c2e4ba6fed5e6.1522835818.git-series.maxime.ripard@bootlin.com
2018-04-11drm/sun4i: Add Allwinner A31 MIPI-DSI controller supportMaxime Ripard5-0/+1476
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 <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/ad9e6224fced87c0889ddd2765d1942610061f72.1522835818.git-series.maxime.ripard@bootlin.com
2018-04-11drm/sun4i: tcon: Add TRI finish interrupt for vblankMaxime Ripard2-3/+10
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 <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/de6d6ad8959da77ea3a974a31a4c0c8391178748.1522835818.git-series.maxime.ripard@bootlin.com
2018-03-28Backmerge tag 'v4.16-rc7' into drm-nextDave Airlie7-47/+69
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.
2018-03-20drm/sun4i: hdmi: Fix another error handling path in 'sun4i_hdmi_bind()'Christophe JAILLET1-1/+2
If we can not get the HDMI DDC clock, we still need to free some resources before returning. Fixes: 939d749ad664 ("drm/sun4i: hdmi: Add support for controller hardware variants") Reviewed-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/5e0084af4ad57e9eea3bca5bd8e2e95970cd6714.1521413031.git.christophe.jaillet@wanadoo.fr
2018-03-20drm/sun4i: hdmi: Fix an error handling path in 'sun4i_hdmi_bind()'Christophe JAILLET1-1/+2
If we can not allocate the HDMI encoder regmap, we still need to free some resources before returning. Fixes: 4b1c924b1fc1 ("drm/sun4i: hdmi: create a regmap for later use") Reviewed-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/14c42391e1b562c7495bda6ad6fa1d24ec8dc052.1521413031.git.christophe.jaillet@wanadoo.fr
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