Commit Graph

167 Commits

Author SHA1 Message Date
Laurent Pinchart
ecaa98f1e6 drm: bridge: dw-hdmi: Remove unneeded arguments to bind/unbind functions
The master argument isn't used. The data argument, a void pointer, is
used by the bind function only where it's cast to a drm_device pointer,
which can easily be obtained from the encoder argument instead. Remove
them.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Jose Abreu <joabreu@synopsys.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20170117082910.27023-3-laurent.pinchart+renesas@ideasonboard.com
2017-01-18 09:29:30 +05:30
Laurent Pinchart
cc7e962327 drm: bridge: dw-hdmi: Merge __hdmi_phy_i2c_write and hdmi_phy_i2c_write
The latter is just an int wrapper around the former void function that
unconditionally returns 0. As the return value is never checked, merge
the two functions into one.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Jose Abreu <joabreu@synopsys.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20170117082910.27023-2-laurent.pinchart+renesas@ideasonboard.com
2017-01-18 09:29:29 +05:30
Archit Taneja
5b06ba2378 drm/bridge: adv7511: Initialize regulators
Maintain a table of regulator names expected by ADV7511 and ADV7533.
Use regulator_bulk_* api to configure these.

Initialize and enable the regulators during probe itself. Controlling
these dynamically is left for later.

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1484117547-26417-3-git-send-email-architt@codeaurora.org
2017-01-17 10:37:22 +05:30
Laurent Pinchart
3bb80f2495 drm: bridge: Link encoder and bridge in core code
Instead of linking encoders and bridges in every driver (and getting it
wrong half of the time, as many drivers forget to set the drm_bridge
encoder pointer), do so in core code. The drm_bridge_attach() function
needs the encoder and optional previous bridge to perform that task,
update all the callers.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Stefan Agner <stefan@agner.ch> # For DCU
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> # For atmel-hlcdc
Acked-by: Vincent Abriou <vincent.abriou@st.com> # For STI
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> # For sun4i
Acked-by: Xinliang Liu <z.liuxinliang@hisilicon.com> # For hisilicon
Acked-by: Jyri Sarha <jsarha@ti.com> # For tilcdc
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1481709550-29226-4-git-send-email-laurent.pinchart+renesas@ideasonboard.com
2016-12-18 16:31:45 +05:30
Caesar Wang
2289b3e11f drm/bridge: analogix_dp: set the DPCD600 during disabling PSR
It looks like the BOE panel FW didn't ack the DPCD600 signal from the
host device, this will cause the panel to hang on the startup display.

The root cause is that we use the fast link mode when we enter and
exit PSR, the issue is gone if we switch from the fast link to main
link mode.

Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1481338159-7189-1-git-send-email-wxt@rock-chips.com
2016-12-15 15:07:12 +05:30
Bartosz Golaszewski
a1f761a592 drm: bridge: add support for TI ths8135
THS8135 is a configurable video DAC, but no configuration is actually
necessary to make it work.

For now use the dumb-vga-dac driver to support it.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1481623759-12786-4-git-send-email-bgolaszewski@baylibre.com
2016-12-14 10:03:08 +05:30
zain wang
8f34a54871 drm/bridge: analogix: Don't return -EINVAL when panel doesn't support PSR
We will ignored PSR setting if panel not support it. So, in this case,
we should return from analogix_dp_enable/disable_psr() without any
error code. Let's retrun 0 instead of -EINVAL when panel not support PSR
in analogix_dp_enable/disable_psr().

Signed-off-by: zain wang <wzz@rock-chips.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1481072253-8917-1-git-send-email-wzz@rock-chips.com
2016-12-07 08:27:36 +05:30
Daniel Vetter
75e75cbd55 Merge remote-tracking branch 'airlied/drm-next' into drm-misc-next
Backmerge v4.9-rc8 to get at

commit e94bd1736f
Author: Michel Dänzer <michel.daenzer@amd.com>
Date:   Wed Nov 30 17:30:01 2016 +0900

drm: Don't call drm_for_each_crtc with a non-KMS driver

so I can apply Michel's follow-up patch.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2016-12-06 10:26:48 +01:00
Laurent Pinchart
949f08862d drm: Make the connector .detect() callback optional
Many drivers (21 to be exact) create connectors that are always
connected (for instance to an LVDS or DSI panel). Instead of forcing
them to implement a dummy .detect() handler, make the callback optional
and consider the connector as always connected in that case.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Jyri Sarha <jsarha@ti.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Vincent Abriou <vincent.abriou@st.com>
Acked-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
[seanpaul fixed small conflict in rcar-du/rcar_du_lvdscon.c]
Signed-off-by: Sean Paul <seanpaul@chromium.org>
2016-12-01 10:05:53 -05:00
Lucas Stach
87291e5dba drm/bridge: tc358767: don't warn if display side ASSR enable fails
ASSR is an optional feature, so it's a valid operating condition for
the display to reject ASSR enable. Demote the warning to the debug
level.

Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by:Andrey Gusakov <andrey.gusakov@cogentembedded.com>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20161130114810.3245-1-l.stach@pengutronix.de
2016-12-01 15:32:38 +05:30
Dave Airlie
0d5320fc19 tilcdc changes for v4.10
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Merge tag 'tilcdc-4.10' of https://github.com/jsarha/linux into drm-next

tilcdc changes for v4.10

* tag 'tilcdc-4.10' of https://github.com/jsarha/linux: (23 commits)
  drm/tilcdc: fix parsing of some DT properties
  drm/tilcdc: Enable frame done irq and functionality for LCDC rev 1
  drm/tilcdc: Configure video mode to HW in enable() not in mode_set_nofb()
  drm/tilcdc: Load palette at the end of mode_set_nofb()
  drm/tilcdc: Add timeout wait for palette loading to complete
  drm/tilcdc: Enable palette loading for revision 2 LCDC too
  drm/tilcdc: Fix load mode bit-field setting in tilcdc_crtc_enable()
  drm/tilcdc: Add tilcdc_write_mask() to tilcdc_regs.h
  drm/tilcdc: Fix tilcdc_crtc_create() return value handling
  drm/tilcdc: implement palette loading for rev1
  drm/tilcdc: Enable sync lost error and recovery handling for rev 1 LCDC
  drm/tilcdc: Add drm bridge support for attaching drm bridge drivers
  drm/bridge: Add ti-tfp410 DVI transmitter driver
  dt-bindings: Move "ti,tfp410.txt" from display/ti to display/bridge
  drm/tilcdc: Recover from sync lost error flood by resetting the LCDC
  drm/tilcdc: Fix race from forced shutdown of crtc in unload
  drm/tilcdc: Use unload to handle initialization failures
  drm/tilcdc: Stop using struct drm_driver load() callback
  drm/tilcdc: Remove obsolete drm_connector_register() calls
  drm/tilcdc: Correct misspelling in error message
  ...
2016-12-01 09:26:55 +10:00
Jyri Sarha
dc55ac3b52 drm/bridge: Add ti-tfp410 DVI transmitter driver
Add very basic ti-tfp410 DVI transmitter driver. The only feature
separating this from a completely dummy bridge is the EDID read
support trough DDC I2C. Even that functionality should be in a
separate generic connector driver. However, because of missing DRM
infrastructure support the connector is implemented within the bridge
driver. Some tfp410 HW specific features may be added later if needed,
because there is a set of registers behind i2c if it is connected.

This implementation is tested against my new tilcdc bridge support
and it works with BeagleBone DVI-D Cape Rev A3. A DT binding document
is also updated.

Signed-off-by: Jyri Sarha <jsarha@ti.com>
Acked-by: Rob Herring <robh@kernel.org>
2016-11-30 14:17:14 +02:00
Srinivas Kandagatla
b2383fa359 drm/bridge: adv7511: Enable the audio data and clock pads on adv7533
This patch enables the Audio Data and Clock pads to the adv7533 bridge.
Without this patch audio can not be played.

Cc: David Airlie <airlied@linux.ie>
Cc: Archit Taneja <architt@codeaurora.org>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Wolfram Sang <wsa+renesas@sang-engineering.com>
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Cc: "Ville Syrjälä" <ville.syrjala@linux.intel.com>
Cc: Boris Brezillon <boris.brezillon@free-electrons.com>
Cc: Andy Green <andy@warmcat.com>
Cc: Dave Long <dave.long@linaro.org>
Cc: Guodong Xu <guodong.xu@linaro.org>
Cc: Zhangfei Gao <zhangfei.gao@linaro.org>
Cc: Mark Brown <broonie@kernel.org>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Jose Abreu <joabreu@synopsys.com>
Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1480382552-28219-3-git-send-email-john.stultz@linaro.org
2016-11-29 09:48:54 +05:30
John Stultz
53c515befe drm/bridge: adv7511: Add Audio support
This patch adds support to Audio for both adv7511 and adv7533
bridge chips.

This patch was originally from [1] by Lars-Peter Clausen <lars@metafoo.de>
and was adapted by Archit Taneja <architt@codeaurora.org> and
Srinivas Kandagatla <srinivas.kandagatla@linaro.org>.

Then I heavily reworked it to use the hdmi-codec driver. And also
folded in some audio packet initialization done by Andy Green
<andy.green@linaro.org>. So credit to them, but blame to me.

[1] https://github.com/analogdevicesinc/linux/blob/xcomm_zynq/drivers/gpu/drm/i2c/adv7511_audio.c

Cc: David Airlie <airlied@linux.ie>
Cc: Archit Taneja <architt@codeaurora.org>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Wolfram Sang <wsa+renesas@sang-engineering.com>
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Cc: "Ville Syrjälä" <ville.syrjala@linux.intel.com>
Cc: Boris Brezillon <boris.brezillon@free-electrons.com>
Cc: Andy Green <andy@warmcat.com>
Cc: Dave Long <dave.long@linaro.org>
Cc: Guodong Xu <guodong.xu@linaro.org>
Cc: Zhangfei Gao <zhangfei.gao@linaro.org>
Cc: Mark Brown <broonie@kernel.org>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Jose Abreu <joabreu@synopsys.com>
Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Cc: dri-devel@lists.freedesktop.org
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1480382552-28219-2-git-send-email-john.stultz@linaro.org
2016-11-29 09:48:46 +05:30
Arnd Bergmann
63926ba85f drm: bridge: dw-hdmi: add ASoC dependency
The newly added sound driver depends on SND_SOC_HDMI_CODEC, which in
turn only makes sense when ASoC is enabled, as shown by this warning:

warning: (DRM_MSM && DRM_STI && DRM_MEDIATEK_HDMI && DRM_I2C_NXP_TDA998X && DRM_DW_HDMI_I2S_AUDIO) selects SND_SOC_HDMI_CODEC which has unmet direct dependencies (SOUND && !M68K && !UML && SND && SND_SOC)

Since the audio driver is probably useless without the audio subsystem,
adding a dependency here seems the right solution.

Fixes: 2761ba6c09 ("drm: bridge: add DesignWare HDMI I2S audio support")
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20161125205411.1157522-1-arnd@arndb.de
2016-11-28 13:53:28 +05:30
Kuninori Morimoto
2761ba6c09 drm: bridge: add DesignWare HDMI I2S audio support
Current dw-hdmi is supporting sound via AHB bus, but it has
I2S audio feature too. This patch adds I2S audio support to dw-hdmi.
This HDMI I2S is supported by using ALSA SoC common HDMI encoder
driver.

Tested-by: Jose Abreu <joabreu@synopsys.com>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/8737j2bxba.wl%kuninori.morimoto.gx@renesas.com
2016-11-24 14:27:15 +05:30
Chen-Yu Tsai
af948a25ec drm/bridge: dumb-vga-dac: Support a VDD regulator supply
Some dumb VGA DACs are active components which require external power.
Add support for specifying a regulator as its power supply.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20161116154232.872-2-wens@csie.org
2016-11-17 13:51:45 +05:30
Jianqun Xu
19423ba710 drm/bridge: analogix_dp: return error if transfer none byte
Reference from drm_dp_aux description (about transfer):
Upon success, the implementation should return the number of payload bytes
that were transferred, or a negative error-code on failure. Helpers
propagate errors from the .transfer() function, with the exception of
the -EBUSY error, which causes a transaction to be retried. On a short,
helpers will return -EPROTO to make it simpler to check for failure.

The analogix_dp_transfer will return num_transferred, but if there is none
byte been transferred, the return value will be 0, which means success, we
should return error-code if transfer none byte.

for (retry = 0; retry < 32; retry++) {
	err = aux->transfer(aux, &msg);
	if (err < 0) {
		if (err == -EBUSY)
			continue;

		goto unlock;
	}
}

Cc: zain wang <wzz@rock-chips.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Jianqun Xu <jay.xu@rock-chips.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1479255219-7243-1-git-send-email-jay.xu@rock-chips.com
2016-11-16 11:16:13 +05:30
Dave Airlie
90233ee5d1 dw-hdmi i2c master controller
- add support for the HDMI I2C master controller, for boards that
   can have their DDC pins connected only to the HDMI TX directly.
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Merge tag 'dw-hdmi-next-2016-09-19' of git://git.pengutronix.de/git/pza/linux into drm-next

dw-hdmi i2c master controller

- add support for the HDMI I2C master controller, for boards that
  can have their DDC pins connected only to the HDMI TX directly.

* tag 'dw-hdmi-next-2016-09-19' of git://git.pengutronix.de/git/pza/linux:
  drm: bridge/dw_hdmi: add dw hdmi i2c bus adapter support
  drm: dw_hdmi: use of_get_i2c_adapter_by_node interface
2016-11-11 09:57:54 +10:00
kbuild test robot
56df51d003 drm/bridge: fix platform_no_drv_owner.cocci warnings
drivers/gpu/drm/bridge/sil-sii8620.c:1556:3-8: No need to set .owner here. The core will do it.

 Remove .owner field if calls are used which set it automatically

Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci

CC: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20161026165836.GA98766@lkp-sb04.lkp.intel.com
2016-10-27 11:35:23 +05:30
kbuild test robot
3a81e96094 drm/bridge: fix semicolon.cocci warnings
drivers/gpu/drm/bridge/sil-sii8620.c:988:2-3: Unneeded semicolon

 Remove unneeded semicolon.

Generated by: scripts/coccinelle/misc/semicolon.cocci

CC: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20161026165836.GA98907@lkp-sb04.lkp.intel.com
2016-10-27 11:34:21 +05:30
Andrzej Hajda
ce6e153f41 drm/bridge: add Silicon Image SiI8620 driver
SiI8620 transmitter converts eTMDS/HDMI signal to MHL 3.0.
It is controlled via I2C bus. Its interaction with other
devices in video pipeline is performed mainly on HW level.
The only interaction it does on device driver level is
filtering-out unsupported video modes, it exposes drm_bridge
interface to perform this operation.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1476085157-5266-1-git-send-email-a.hajda@samsung.com
2016-10-26 11:19:12 +05:30
Marek Vasut
fdd8326a01 drm/bridge: Drop drm_connector_unregister and call drm_connector_cleanup directly
Drop unneeded drm_connector_unregister() and remove the unnecessary
wrapper functions around drm_connector_cleanup().

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20161005143133.5549-1-marex@denx.de
2016-10-10 11:19:42 +02:00
Maxime Ripard
56fe8b6f49 drm/bridge: Add RGB to VGA bridge support
Some boards have an entirely passive RGB to VGA bridge, based on DACs
implemented by resistor ladders.

Those might or might not have an i2c bus routed to the VGA connector in
order to access the screen EDIDs.

Add a bridge that doesn't do anything but expose the modes available on the
screen, either based on the EDIDs if available, or based on the XGA
standards.

Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20160930143709.1388-3-maxime.ripard@free-electrons.com
2016-10-10 10:58:44 +05:30
Marek Vasut
bf3b123e3d drm/bridge: Call drm_connector_cleanup directly
Remove the unnecessary wrapper functions around drm_connector_cleanup().

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20161004222331.7200-1-marex@denx.de
2016-10-05 15:20:36 +02:00
Tomeu Vizoso
561b069008 drm/bridge: analogix_dp: Add analogix_dp_psr_supported
So users know whether PSR should be enabled or not.

Cc: Yakir Yang <ykk@rock-chips.com>

Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1474639600-30090-1-git-send-email-tomeu.vizoso@collabora.com
2016-10-04 08:23:16 +02:00
Dave Airlie
3f346d5dcb Merge tag 'topic/drm-misc-2016-09-25' of git://anongit.freedesktop.org/drm-intel into drm-next
- more core cleanup patches to prep drm_file to be used for
  kernel-internal contexts (David Herrmann)
- more split-up+docs for drm_crtc.c
- lots of small fixes and polish all over

* tag 'topic/drm-misc-2016-09-25' of git://anongit.freedesktop.org/drm-intel: (37 commits)
  drm: bridge: analogix/dp: mark symbols static where possible
  drm/bochs: mark bochs_connector_get_modes() static
  drm/bridge: analogix_dp: Improve panel on time
  drm/bridge: analogix_dp: Don't read EDID if panel present
  drm/bridge: analogix_dp: Remove duplicated code
  Revert "drm/i2c: tda998x: don't register the connector"
  drm: Fix plane type uabi breakage
  dma-buf/sync_file: free fences array in num_fences is 1
  drm/i2c: tda998x: don't register the connector
  drm: Don't swallow error codes in drm_dev_alloc()
  drm: Distinguish no name from ENOMEM in set_unique()
  drm: Remove dirty property from docs
  drm/doc: Document color space handling
  drm: Extract drm_color_mgmt.[hc]
  drm/doc: Polish plane composition property docs
  drm: Conslidate blending properties in drm_blend.[hc]
  drm/doc: Polish for drm_plane.[hc]
  drm: Extract drm_plane.[hc]
  drm/tilcdc: Add atomic and crtc headers to crtc.c
  drm: Fix typo in encoder docs
  ...
2016-09-28 10:28:23 +10:00
Baoyou Xie
089cfdd9b0 drm: bridge: analogix/dp: mark symbols static where possible
We get 2 warnings when building kernel with W=1:
drivers/gpu/drm/bridge/analogix/analogix_dp_core.c:1053:5: warning: no previous prototype for 'analogix_dp_get_modes' [-Wmissing-prototypes]
drivers/gpu/drm/bridge/analogix/analogix_dp_core.c:1097:1: warning: no previous prototype for 'analogix_dp_detect' [-Wmissing-prototypes]

In fact, both functions are only used in the file in which they are
declared and don't need a declaration, but can be made static.
So this patch marks both functions with 'static'.

Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1474788764-6069-1-git-send-email-baoyou.xie@linaro.org
2016-09-25 22:59:02 +02:00
Sean Paul
f2600d08d4 drm/bridge: analogix_dp: Improve panel on time
In order to reduce the time required to turn on the panel, this patch
makes 2 assumptions:
1- In detect(): if there's a panel, we're connected.
2- In get_modes(): if there's a panel, let the panel driver decide if
   it should prepare/unprepare in order to get the modes.

The first is straightforward, and shouldn't need further explanation. The
second should eliminate the prepare/unprepare delays from get_modes() in
most cases, since panels generally hardcode their modes in the driver as
opposed to reading EDID. If a panel does need to read EDID, it should be
responsible for ensuring it's in a state in which it can.

Signed-off-by: Sean Paul <seanpaul@chromium.org>
2016-09-24 11:56:35 +05:30
Sean Paul
8c77e2c2a4 drm/bridge: analogix_dp: Don't read EDID if panel present
If there's a panel connected to the analogix_dp bridge, rely on
the panel driver for modes, rather than reading EDID *and* calling
get_modes() on the panel.

This allows panels with a valid EDID to read it in the panel driver
(e.g. simple_panel), and panels with invalid EDID to homebrew modes
in their get_modes implementation.

Signed-off-by: Sean Paul <seanpaul@chromium.org>
2016-09-24 11:56:34 +05:30
Tomeu Vizoso
0d97ad03f4 drm/bridge: analogix_dp: Remove duplicated code
Remove code for reading the EDID and DPCD fields and use the helpers
instead.

Besides the obvious code reduction, other helpers are being added to the
core that could be used in this driver and will be good to be able to
use them instead of duplicating them.

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Tested-by: Javier Martinez Canillas <javier@osg.samsung.com>
Tested-by: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Cc: Javier Martinez Canillas <javier@osg.samsung.com>
Cc: Mika Kahola <mika.kahola@intel.com>
Cc: Yakir Yang <ykk@rock-chips.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Archit Taneja <architt@codeaurora.org>
2016-09-24 11:56:34 +05:30
Dave Airlie
26e34d2d8b imx-drm active plane reconfiguration, cleanup, FSU/IC/IRT/VDIC support
- add active plane reconfiguration support (v4),
   use the atomic_disable callback
 - stop calling disable_plane manually in the plane destroy path
 - let mode cleanup destroy mode objects on driver unbind
 - drop deprecated load/unload drm_driver ops
 - add exclusive fence to plane state, so the atomic helper can
   wait on them, remove the open-coded fence wait from imx-drm
 - add low level deinterlacer (VDIC) support
 - add support for channel linking via the frame synchronisation unit (FSU)
 - add queued image conversion support for memory-to-memory scaling, rotation,
   and color space conversion, using IC and IRT.
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Merge tag 'imx-drm-next-2016-09-19' of git://git.pengutronix.de/git/pza/linux into drm-next

imx-drm active plane reconfiguration, cleanup, FSU/IC/IRT/VDIC support

- add active plane reconfiguration support (v4),
  use the atomic_disable callback
- stop calling disable_plane manually in the plane destroy path
- let mode cleanup destroy mode objects on driver unbind
- drop deprecated load/unload drm_driver ops
- add exclusive fence to plane state, so the atomic helper can
  wait on them, remove the open-coded fence wait from imx-drm
- add low level deinterlacer (VDIC) support
- add support for channel linking via the frame synchronisation unit (FSU)
- add queued image conversion support for memory-to-memory scaling, rotation,
  and color space conversion, using IC and IRT.

* tag 'imx-drm-next-2016-09-19' of git://git.pengutronix.de/git/pza/linux:
  gpu: ipu-v3: Add queued image conversion support
  gpu: ipu-v3: Add ipu_rot_mode_is_irt()
  gpu: ipu-v3: fix a possible NULL dereference
  drm/imx: parallel-display: detach bridge or panel on unbind
  drm/imx: imx-ldb: detach bridge on unbind
  drm/imx: imx-ldb: detach panel on unbind
  gpu: ipu-v3: Add FSU channel linking support
  gpu: ipu-v3: Add Video Deinterlacer unit
  drm/imx: add exclusive fence to plane state
  drm/imx: fold ipu_plane_disable into ipu_disable_plane
  drm/imx: don't destroy mode objects manually on driver unbind
  drm/imx: drop deprecated load/unload drm_driver ops
  drm/imx: don't call disable_plane in plane destroy path
  drm/imx: Add active plane reconfiguration support
  drm/imx: Use DRM_PLANE_COMMIT_NO_DISABLE_AFTER_MODESET flag
  drm/imx: ipuv3-crtc: Use the callback ->atomic_disable instead of ->disable
  gpu: ipu-v3: Do not wait for DMFC FIFO to clear when disabling DMFC channel
2016-09-20 06:24:26 +10:00
Vladimir Zapolskiy
3efc2fa3b7 drm: bridge/dw_hdmi: add dw hdmi i2c bus adapter support
The change adds support of internal HDMI I2C master controller, this
subdevice is used by default, if "ddc-i2c-bus" DT property is omitted.

The main purpose of this functionality is to support reading EDID from
an HDMI monitor on boards, which don't have an I2C bus connected to
DDC pins.

The current implementation does not support "I2C Master Interface
Extended Read Mode" to read data addressed by non-zero segment
pointer, this means that if EDID has more than 1 extension blocks,
EDID reading operation won't succeed, in my practice all tested HDMI
monitors have at maximum one extension block.

Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Acked-by: Rob Herring <robh@kernel.org>
Tested-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-09-19 08:07:24 +02:00
Vladimir Zapolskiy
9f04a1f2b3 drm: dw_hdmi: use of_get_i2c_adapter_by_node interface
This change is needed to properly lock I2C bus driver, which serves
DDC.

The change fixes an overflow over zero of I2C bus driver user counter:

  root@imx6q:~# lsmod
  Not tainted
  dw_hdmi_ahb_audio 4082 0 - Live 0xbf02c000
  dw_hdmi_imx 3498 0 - Live 0xbf00d000
  dw_hdmi 16398 2 dw_hdmi_ahb_audio,dw_hdmi_imx, Live 0xbf004000
  i2c_imx 16687 0 - Live 0xbf017000

  root@imx6q:~# rmmod dw_hdmi_imx
  root@imx6q:~# lsmod
  Not tainted
  dw_hdmi_ahb_audio 4082 0 - Live 0xbf02c000
  dw_hdmi 16398 1 dw_hdmi_ahb_audio, Live 0xbf004000
  i2c_imx 16687 -1 - Live 0xbf017000
                ^^

  root@imx6q:~# rmmod i2c_imx
  rmmod: ERROR: Module i2c_imx is in use

Note that prior to this change put_device() coupled with
of_find_i2c_adapter_by_node() was missing on error path of
dw_hdmi_bind(), added i2c_put_adapter() there along with the change.

Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-09-19 08:06:41 +02:00
Masahiro Yamada
03d6356d45 drm/bridge: analogix_dp: squash lines for simple wrapper functions
Remove unneeded variables and assignments.

Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
[seanpaul added analogix prefix to subject]
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1473863952-7658-4-git-send-email-yamada.masahiro@socionext.com
2016-09-15 10:41:39 -04:00
Sergei Shtylyov
d25a4cbba4 drm/bridge: adv7511: add support for the 2nd chip
The Renesas Wheat board has 2 ADV7513 chips on the same I2C bus, however
the ADV751x driver only supports 1 chip as it tries to assign the packet/
EDID/CEC memory I2C devices to the fixed I2C addresses. Assign these I2C
addresses at the fixed offsets (derived from the programming guide) from
the main register map address instead.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1580212.O1LYdJFM97@wasted.cogentembedded.com
2016-09-12 13:20:43 +05:30
Dave Airlie
5e7a1d0170 Merge tag 'topic/drm-misc-2016-08-31' of git://anongit.freedesktop.org/drm-intel into drm-next
More -misc stuff
- moar drm_crtc.c split up&documentation
- some fixes for the simple kms helpers (Andrea)
- I included all the dri1 patches from David - we're not removing any code
  or drivers, and it seems to have worked as a wake-up call to motivate a
  few more people to upstream kms conversions for these. Feel free to
  revert if you disagree strongly.
- a few other single patches

* tag 'topic/drm-misc-2016-08-31' of git://anongit.freedesktop.org/drm-intel: (24 commits)
  drm: drm_probe_helper: Fix output_poll_work scheduling
  drm: bridge/dw-hdmi: Fix colorspace and scan information registers values
  drm/doc: Polish docs for drm_property&drm_property_blob
  drm: Unify handling of blob and object properties
  drm: Extract drm_property.[hc]
  drm: move drm_mode_legacy_fb_format to drm_fourcc.c
  drm/doc: Polish docs for drm_mode_object
  drm: Remove drm_mode_object->atomic_count
  drm: Extract drm_mode_object.[hc]
  drm/doc: Polish kerneldoc for encoders
  drm: Extract drm_encoder.[hc]
  drm/fb-helper: don't call remove_conflicting_framebuffers for FB=m && DRM=y
  drm/atomic-helper: Add NO_DISABLE_AFTER_MODESET flag support for plane commit
  drm/atomic-helper: Disable appropriate planes in disable_planes_on_crtc()
  drm/atomic-helper: Add atomic_disable CRTC helper callback
  drm: simple_kms_helper: add support for bridges
  drm: simple_kms_helper: make connector optional at init time
  drm/bridge: introduce bridge detaching mechanism
  drm/simple-helpers: Always add planes to the state update
  drm: reduce GETCLIENT to a minimum
  ...
2016-09-01 06:15:38 +10:00
Jose Abreu
b0118e7d93 drm: bridge/dw-hdmi: Fix colorspace and scan information registers values
Colorspace and scan information values were being written in wrong
offsets. This patch corrects this and writes the values at the
offsets specified in the databook.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Cc: Carlos Palminha <palminha@synopsys.com>
Cc: Archit Taneja <architt@codeaurora.org>
Cc: David Airlie <airlied@linux.ie>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/96fd0f06b7ebc2ee5cb8239a99648f3107e24497.1471530573.git.joabreu@synopsys.com
2016-08-30 15:36:25 +05:30
Lucas Stach
8e3b16e211 drm/imx: don't destroy mode objects manually on driver unbind
Instead let drm_mode_config_cleanup() do the work when taking down
the master device. This requires all cleanup functions to be
properly hooked up to the mode object .destroy callback.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-08-29 12:45:05 +02:00
Dave Airlie
78acdd4a7e Merge branch 'for-next' of git://people.freedesktop.org/~seanpaul/dogwood into drm-next
This pull request contains the following rockchip drm changes:

  - Introduce support for rk3399 vop/crtc
  - Add PSR framework to the rockchip driver
  - Implement PSR in the rockchip analogix edp driver
  - Fix panel on/off in analogix to avoid damaging panels
  - Some miscellaneous fixes to clean up logs and code readability

* 'for-next' of git://people.freedesktop.org/~seanpaul/dogwood:
  drm/rockchip: analogix_dp: drop unnecessary probe deferral "error" print
  drm/rockchip: Enable vblank without event
  drm/rockchip: Improve analogix-dp psr handling
  drm/rockchip: A couple small fixes to psr
  drm/rockchip: Use a spinlock to protect psr state
  drm/rockchip: Don't use a delayed worker for psr state changes
  drm/rockchip: Convert psr_list_mutex to spinlock and use it
  drm/rockchip: analogix_dp: implement PSR function
  drm/bridge: analogix_dp: add the PSR function support
  drm/rockchip: add an common abstracted PSR driver
  drm/rockchip: vop: export line flag function
  drm/bridge: analogix_dp: Ensure the panel is properly prepared/unprepared
  dt-bindings: add compatible strings for big/little rockchip vops
  dt-bindings: sort Rockchip vop compatible by chip's number
  drm/rockchip: vop: add rk3399 vop support
  drm/rockchip: vop: introduce VOP_REG_MASK
  drm/rockchip: sort registers define by chip's number
2016-08-25 12:35:35 +10:00
Yakir Yang
5b3f84f222 drm/bridge: analogix_dp: add the PSR function support
The full name of PSR is Panel Self Refresh, panel device could refresh
itself with the hardware framebuffer in panel, this would make lots of
sense to save the power consumption.

This patch have exported two symbols for platform driver to implement
the PSR function in hardware side:
- analogix_dp_active_psr()
- analogix_dp_inactive_psr()

Reviewed-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Yakir Yang <ykk@rock-chips.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
2016-08-23 11:44:33 -04:00
Sean Paul
0b8b059a75 drm/bridge: analogix_dp: Ensure the panel is properly prepared/unprepared
Instead of just preparing the panel on bind, actually prepare/unprepare
during modeset/disable. The panel must be prepared in order to read hpd
status and edid, so we need to keep state around the prepares in order
to ensure we don't accidentally turn the panel off at the wrong time.

Reviewed-by: Yakir Yang <ykk@rock-chips.com>
Tested-by: Yakir Yang <ykk@rock-chips.com>
Reviewed-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
2016-08-23 11:44:31 -04:00
Markus Elfring
79d0d27d88 drm/bridge: dw-hdmi: Delete unnecessary assignment for the field "owner"
The field "owner" is set by the core.
Thus delete an unneeded initialisation.

Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/7c97565d-eee3-45e9-b494-9e802977502c@users.sourceforge.net
2016-08-23 11:34:26 -04:00
Daniel Vetter
b1116f645c drm: Remove superflous linux/fb.h includes
Everyone who uses the fbdev emulation helpers doesn't need to include
fb.h directly. Remove it.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1470847958-28465-3-git-send-email-daniel.vetter@ffwll.ch
2016-08-12 10:41:39 +02:00
Dave Airlie
e470f3a242 Merge tag 'topic/drm-misc-2016-07-28' of git://anongit.freedesktop.org/drm-intel into drm-next
A few more simple fixes that Sean&I collected. There's a bunch of bigger
things on dri-devel, but I think those are all too late for 4.8 really.
I'll try and go collect them after -rc1 for 4.9.

* tag 'topic/drm-misc-2016-07-28' of git://anongit.freedesktop.org/drm-intel:
  drm/arm: mali-dp: Fix error return code in malidp_bind()
  drm/arm: mali-dp: Remove redundant dev_err call in malidp_bind()
  drm/gma500: remove unnecessary stub for fb_ioctl()
  apple-gmux: Sphinxify docs
  drm/arm: mali-dp: Set crtc.port to the port instead of the endpoint
  drm/sti: use new Reset API
  drm/etnaviv: Optimize error handling in etnaviv_gem_new_userptr()
  drm/etnaviv: Delete unnecessary checks before two function calls
  drm/vmwgfx: Delete an unnecessary check before the function call "vfree"
  drm/qxl: Delete an unnecessary check before drm_gem_object_unreference_unlocked()
  drm/mgag200: Delete an unnecessary check before drm_gem_object_unreference_unlocked()
  drm/bridge: ps8622: Delete an unnecessary check before backlight_device_unregister()
  GPU-DRM-GMA500: Delete unnecessary checks before two function calls
  GPU-DRM-OMAP: Delete unnecessary checks before two function calls
2016-07-30 05:26:07 +10:00
Markus Elfring
4cf090e10b drm/bridge: ps8622: Delete an unnecessary check before backlight_device_unregister()
The backlight_device_unregister() function tests whether its argument
is NULL and then returns immediately.
Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/791089e4-201c-ad01-9c3b-f49835765177@users.sourceforge.net
2016-07-22 11:23:38 -04:00
Dave Airlie
0cf0903154 Merge branch 'drm_bridge_for_4.8' of https://github.com/boddob/linux into drm-next
This is an update to the previous drm bridge pull request. The ADV7511
driver's conversion from slave encoder to bridge meant that its users
(the rcar-du kms driver) should use the bridge interface too. This pull
request now also contains a commit that updates the rcar-du's hdmi encoder
interface from slave encoder to bridge.

The other updates are as before:

- Converts the ADV7511 i2c slave encoder driver to a bridge driver.
  Adds support for the ADV7533 bridge chip.
- Add bridge driver for TC358767 (DSI/DPI to eDP) encoder chips.

* 'drm_bridge_for_4.8' of https://github.com/boddob/linux:
  drm: rcar-du: Remove i2c slave encoder interface for hdmi encoder
  drm/bridge: tc358767: Add DPI to eDP bridge driver
  dt-bindings: tc358767: add DT documentation
  dt-bindings: drm/bridge: Update bindings for ADV7533
  drm/bridge: adv7533: Change number of DSI lanes dynamically
  drm/bridge: adv7533: Use internal timing generator
  drm/bridge: adv7533: Create a MIPI DSI device
  drm/bridge: adv7533: Initial support for ADV7533
  drm/bridge: adv7511: Fix mutex deadlock when interrupts are disabled
  drm/i2c: adv7511: Move to bridge folder
  drm/i2c: adv7511: Convert to drm_bridge
2016-07-19 17:51:19 +10:00
Andrey Gusakov
7caff0fc42 drm/bridge: tc358767: Add DPI to eDP bridge driver
Add a drm_bridge driver for the Toshiba TC358767 DPI/DSI to
eDP/DP bridge. Currently only DPI input with 24-bit RGB is
supported.

Signed-off-by: Andrey Gusakov <andrey.gusakov@cogentembedded.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
2016-07-17 14:00:57 +05:30
Dave Airlie
e2b80bac21 Merge branch 'upstream/analogix-dp-20160705' of git://github.com/yakir-Yang/linux into drm-next
Please consider merging this tag, which contains the v4 misc fixes and add RK3399 eDP support patches[0] I sent on 2016-06-29, rebased onto v4.7-rc5.

* 'upstream/analogix-dp-20160705' of git://github.com/yakir-Yang/linux:
  dt-bindings: analogix_dp: rockchip: correct the wrong compatible name
  drm/rockchip: analogix_dp: introduce the pclk for grf
  drm/bridge: analogix_dp: fix no drm hpd event when panel plug in
  drm/rockchip: analogix_dp: update the comments about why need to hardcode VOP output mode
  drm/rockchip: analogix_dp: correct the connector display color format and bpc
  drm/bridge: analogix_dp: passing the connector as an argument in .get_modes()
  drm/rockchip: analogix_dp: make panel detect to an optional action
  drm/rockchip: analogix_dp: add rk3399 eDP support
  drm/bridge: analogix_dp: some rockchip chips need to flip REF_CLK bit setting
  drm/bridge: analogix_dp: correct the register bit define error in ANALOGIX_DP_PLL_REG_1
  drm/rockchip: analogix_dp: split the lcdc select setting into device data
2016-07-16 11:21:50 +10:00
Archit Taneja
62b2f026cd drm/bridge: adv7533: Change number of DSI lanes dynamically
Lower modes on ADV7533 require lower number of DSI lanes for correct
operation. If ADV7533 is being used with 4 DSI lanes, then switch the
lanes to 3 when the target mode's pixel clock is less than 80 Mhz.

Based on patch by Andy Green <andy.green@linaro.org>

Signed-off-by: Archit Taneja <architt@codeaurora.org>
2016-07-13 14:24:37 +05:30