Commit Graph

39 Commits

Author SHA1 Message Date
Daniel Vetter 7d902c05b4 drm: Nuke drm_atomic_helper_connector_dpms
It's dead code, the core handles all this directly now.

The only special case is nouveau and tda988x which used one function
for both legacy modeset code and -nv50 atomic world instead of 2
vtables. But amounts to exactly the same.

v2: Rebase over the panel/brideg refactorings in stm/ltdc.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Archit Taneja <architt@codeaurora.org>
Cc: Andrzej Hajda <a.hajda@samsung.com>
Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
Cc: Peter Senna Tschudin <peter.senna@collabora.com>
Cc: Martin Donnelly <martin.donnelly@ge.com>
Cc: Martyn Welch <martyn.welch@collabora.co.uk>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: David Airlie <airlied@linux.ie>
Cc: Inki Dae <inki.dae@samsung.com>
Cc: Joonyoung Shim <jy0922.shim@samsung.com>
Cc: Seung-Woo Kim <sw0312.kim@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Kukjin Kim <kgene@kernel.org>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Cc: Stefan Agner <stefan@agner.ch>
Cc: Alison Wang <alison.wang@freescale.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: CK Hu <ck.hu@mediatek.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Carlo Caione <carlo@caione.org>
Cc: Kevin Hilman <khilman@baylibre.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Eric Anholt <eric@anholt.net>
Cc: Mark Yao <mark.yao@rock-chips.com>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Cc: Vincent Abriou <vincent.abriou@st.com>
Cc: Yannick Fertre <yannick.fertre@st.com>
Cc: Philippe Cornu <philippe.cornu@st.com>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Chen-Yu Tsai <wens@csie.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Jonathan Hunter <jonathanh@nvidia.com>
Cc: Jyri Sarha <jsarha@ti.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Cc: Jeffy Chen <jeffy.chen@rock-chips.com>
Cc: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Cc: Yakir Yang <kuankuan.y@gmail.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Jose Abreu <Jose.Abreu@synopsys.com>
Cc: Romain Perier <romain.perier@collabora.com>
Cc: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Cc: Xinliang Liu <z.liuxinliang@hisilicon.com>
Cc: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Rongrong Zou <zourongrong@gmail.com>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Hai Li <hali@codeaurora.org>
Cc: "Noralf Trønnes" <noralf@tronnes.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-samsung-soc@vger.kernel.org
Cc: intel-gfx@lists.freedesktop.org
Cc: linux-mediatek@lists.infradead.org
Cc: linux-amlogic@lists.infradead.org
Cc: nouveau@lists.freedesktop.org
Cc: linux-renesas-soc@vger.kernel.org
Cc: linux-rockchip@lists.infradead.org
Cc: linux-tegra@vger.kernel.org
Cc: virtualization@lists.linux-foundation.org
Cc: zain wang <wzz@rock-chips.com>
Cc: Baoyou Xie <baoyou.xie@linaro.org>
Cc: Boris Brezillon <boris.brezillon@free-electrons.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170725080122.20548-8-daniel.vetter@ffwll.ch
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Archit Taneja <architt@codeaurora.org>
Tested-by: Philippe Cornu <philippe.cornu@st.com> (on stm)
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Acked-by: Noralf Trønnes <noralf@tronnes.org>
Acked-by: Vincent Abriou <vincent.abriou@st.com>
2017-08-08 14:48:48 +02:00
Leonard Crestez e36aecba54 drm/imx: imx-ldb: Accept drm_of_find_panel_or_bridge failure
Not having an endpoint bound in DT should not cause a failure here,
there are fallbacks. So explicitly accept a missing endpoint.

This behavior change was introduced by refactoring in drm_of parsing
code and it should not require dts changes.

In particular this fixes imx6qdl-sabreauto boards.

Link: https://lists.freedesktop.org/archives/dri-devel/2017-May/141233.html
Fixes: ebc9446135 ("drm: convert drivers to use drm_of_find_panel_or_bridge")
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2017-06-06 10:21:10 +02:00
Rob Herring ebc9446135 drm: convert drivers to use drm_of_find_panel_or_bridge
Similar to the previous commit, convert drivers open coding OF graph
parsing to use drm_of_find_panel_or_bridge instead.

This changes some error messages to debug messages (in the graph core).
Graph connections are often "no connects" depending on the particular
board, so we want to avoid spurious messages. Plus the kernel is not a
DT validator.

Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Archit Taneja <architt@codeaurora.org>
Tested-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
[seanpaul dropped rockchip changes since they're now obsolete]
Signed-off-by: Sean Paul <seanpaul@chromium.org>
2017-04-06 17:00:27 -04:00
Laurent Pinchart 4a878c03d5 drm: bridge: Detach bridge from encoder at encoder cleanup time
Most drivers that use bridges forgot to detach them at cleanup time.
Instead of fixing them one by one, detach the bridge in the core
drm_encoder_cleanup() function.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1481709550-29226-5-git-send-email-laurent.pinchart+renesas@ideasonboard.com
2016-12-18 16:32:49 +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
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
Philipp Zabel cdda2df7e0 drm/imx: imx-ldb: remove unnecessary double disable check
Since the atomic modeset conversion, this should not be an issue
anymore.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-11-07 15:17:46 +01:00
Philipp Zabel 60203c90bf drm/imx: imx-ldb: detach bridge on unbind
Don't leave the bridge attached to a stale driver instance when
unbinding, to allow reattachment on a rebind.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-08-29 16:30:48 +02:00
Lucas Stach b1318d50a0 drm/imx: imx-ldb: detach panel on unbind
Make sure to leave a clean panel state behind and allow to
properly attach to the panel again on a rebind.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-08-29 16:30:48 +02:00
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
Peter Senna Tschudin dc80d70388 drm/imx-ldb: Add support to drm-bridge
Add support to attach a drm_bridge to imx-ldb in addition to
existing support to attach a LVDS panel.

This patch does a simple code refactoring by moving code
from for_each_child_of_node iterator to a new function named
imx_ldb_panel_ddc(). This was necessary to allow the panel ddc
code to run only when the imx_ldb is not attached to a bridge.

Cc: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Rob Herring <robh@kernel.org>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Thierry Reding <treding@nvidia.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Peter Senna Tschudin <peter.senna@collabora.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-08-11 11:34:22 +02:00
Philipp Zabel 3a2ad5028c drm/imx: imx-ldb: use encoder atomic_mode_set callback
Using atomic_mode_set instead of mode_set allows to access crtc
and connector states in addition to the modes. This allows to
remove the connector list walk.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-08-08 11:44:20 +02:00
Lothar Waßmann fafc79ef2e drm/imx: convey the pixelclk-active and de-active flags from DT to the ipu-di driver
The 'de-active' and 'pixelclk-active' DT properties are evaluated
by of_parse_display_timing() called from  of_get_drm_display_mode(),
but later lost in the conversion from videomode.flags to
drm_display_mode.flags.
Enhance of_get_drm_display_mode() to also return the bus flags in a
separate variable, so that they can be passed on to the ipu-di
driver.

Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-08-08 11:44:20 +02:00
Philipp Zabel ff615eed11 drm/imx: imx-ldb: do not try to dereference crtc->state->state in encoder mode_set
The code in imx_ldb_encoder_mode_set crashes with a NULL pointer
dereference trying to access crtc->state->state, which was previously
cleared by drm_atomic_helper_swap_state:

    Unable to handle kernel NULL pointer dereference at virtual address 00000010
    pgd = ae08c000
    [00000010] *pgd=3e00e831, *pte=00000000, *ppte=00000000
    Internal error: Oops: 17 [#1] PREEMPT SMP ARM
    Modules linked in:
    CPU: 1 PID: 102 Comm: kmsfb-manage Not tainted 4.7.0-rc5+ #232
    Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree)
    task: ae058c40 ti: ae04e000 task.ti: ae04e000
    PC is at imx_ldb_encoder_mode_set+0x138/0x2f8
    LR is at 0xae881818
    pc : [<8051a8c8>]    lr : [<ae881818>]    psr: 600f0013
    sp : ae04fc70  ip : ae04fbb0  fp : ae04fcbc
    r10: ae8ea018  r9 : 00000000  r8 : ae246418
    r7 : ae8ea010  r6 : ae8ea308  r5 : 00000000  r4 : 00000000
    r3 : 00000000  r2 : 00000000  r1 : 00000110  r0 : 00000000
    Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
    Control: 10c5387d  Table: 3e08c04a  DAC: 00000051
    Process kmsfb-manage (pid: 102, stack limit = 0xae04e210)
    Stack: (0xae04fc70 to 0xae050000)
    fc60:                                     043ce660 00000001 0000009e 043ce660
    fc80: 00000002 00000000 00000000 af75cf50 00001009 ae23f440 00000001 ae246418
    fca0: 8155a210 ae8ea308 8093c364 ae2464e0 ae04fcec ae04fcc0 804ef350 8051a79c
    fcc0: 00000004 00000004 ae23f440 af3f9000 ae881818 8155a210 af1af200 ae8ea020
    fce0: ae04fd1c ae04fcf0 80519124 804ef060 ae04fd34 00000000 00000000 00000000
    fd00: ae881818 ae23f440 80d4ec8c 00000000 ae04fd34 ae04fd20 804f00b4 80518fac
    fd20: ae23f440 00000000 ae04fd54 ae04fd38 804f2190 804f0074 ae23f440 af3f9000
    fd40: ae04fdd4 ae881818 ae04fd6c ae04fd58 80516390 804f20f4 ae23f440 00000000
    fd60: ae04fd8c ae04fd70 804f26f4 80516348 ae23a000 ae881818 00000001 af3f9000
    fd80: ae04fdac ae04fd90 80502c58 804f2678 ae04fe50 ae23f400 00000001 af3f9000
    fda0: ae04fe1c ae04fdb0 80507a1c 80502bf8 ae23a000 ae058c40 af1af200 ae23f400
    fdc0: ae23a000 af3f9000 ae881818 ae23a00c 80176c7c ae23a000 ae881818 af1af200
    fde0: 00000000 00000000 ae23f400 00000001 ae04fe1c 00000051 ae04fe50 8155a210
    fe00: 80932060 c06864a2 af3f9000 ae246200 ae04fefc ae04fe20 804f9718 805074e8
    fe20: ae04feac ae04fe30 80177360 8017631c 805074dc 00000068 00000068 00000062
    fe40: 00000068 000000a2 ae04fe50 7ef29688 7ef29c40 00000000 00000001 00000018
    fe60: 00000026 00000000 00000000 00000000 00000001 000115bc 05010500 05a0059f
    fe80: 03200000 03360321 00000337 0000003c 00000000 00000040 30383231 30303878
    fea0: 00000000 00000000 00000000 00000000 00000000 00000000 00004000 aea6a140
    fec0: 00000000 80d77b71 00000000 80283110 600f0013 7ef29688 af342bb0 ae250b40
    fee0: 80275440 00000003 ae04e000 00000000 ae04ff7c ae04ff00 80274ac8 804f957c
    ff00: 80283128 80179030 00000000 00000000 80282fd8 ae1e0000 0000003d aea6a1d0
    ff20: 00000002 00000003 00004000 007f8c60 c06864a2 7ef29688 ae04e000 00000000
    ff40: ae04ff6c ae04ff50 80283260 80282fe4 00017050 ae250b41 00000003 ae250b40
    ff60: c06864a2 7ef29688 ae04e000 00000000 ae04ffa4 ae04ff80 80275440 80274a20
    ff80: 00017050 00000001 007f8c60 00000036 801088a4 ae04e000 00000000 ae04ffa8
    ffa0: 80108700 80275408 00017050 00000001 00000003 c06864a2 7ef29688 000115bc
    ffc0: 00017050 00000001 007f8c60 00000036 00000003 00000000 00000026 00000018
    ffe0: 00016f28 7ef29684 0000b7d9 76e4a1e6 400f0030 00000003 3ff7e861 3ff7ec61
    Backtrace:
    [<8051a790>] (imx_ldb_encoder_mode_set) from [<804ef350>] (drm_atomic_helper_commit_modeset_disables+0x2fc/0x3f0)
     r10:ae2464e0 r9:8093c364 r8:ae8ea308 r7:8155a210 r6:ae246418 r5:00000001
     r4:ae23f440
    [<804ef054>] (drm_atomic_helper_commit_modeset_disables) from [<80519124>] (imx_drm_atomic_commit_tail+0x184/0x1e0)
     r10:ae8ea020 r9:af1af200 r8:8155a210 r7:ae881818 r6:af3f9000 r5:ae23f440
     r4:00000004 r3:00000004
    [<80518fa0>] (imx_drm_atomic_commit_tail) from [<804f00b4>] (commit_tail+0x4c/0x68)
     r6:00000000 r5:80d4ec8c r4:ae23f440
    [<804f0068>] (commit_tail) from [<804f2190>] (drm_atomic_helper_commit+0xa8/0xd4)
     r5:00000000 r4:ae23f440
    [<804f20e8>] (drm_atomic_helper_commit) from [<80516390>] (drm_atomic_commit+0x54/0x74)
     r7:ae881818 r6:ae04fdd4 r5:af3f9000 r4:ae23f440
    [<8051633c>] (drm_atomic_commit) from [<804f26f4>] (drm_atomic_helper_set_config+0x88/0xac)
     r5:00000000 r4:ae23f440
    [<804f266c>] (drm_atomic_helper_set_config) from [<80502c58>] (drm_mode_set_config_internal+0x6c/0xf4)
     r7:af3f9000 r6:00000001 r5:ae881818 r4:ae23a000
    [<80502bec>] (drm_mode_set_config_internal) from [<80507a1c>] (drm_mode_setcrtc+0x540/0x5b8)
     r7:af3f9000 r6:00000001 r5:ae23f400 r4:ae04fe50
    [<805074dc>] (drm_mode_setcrtc) from [<804f9718>] (drm_ioctl+0x1a8/0x46c)
     r10:ae246200 r9:af3f9000 r8:c06864a2 r7:80932060 r6:8155a210 r5:ae04fe50
     r4:00000051
    [<804f9570>] (drm_ioctl) from [<80274ac8>] (do_vfs_ioctl+0xb4/0x9e8)
     r10:00000000 r9:ae04e000 r8:00000003 r7:80275440 r6:ae250b40 r5:af342bb0
     r4:7ef29688
    [<80274a14>] (do_vfs_ioctl) from [<80275440>] (SyS_ioctl+0x44/0x6c)
     r10:00000000 r9:ae04e000 r8:7ef29688 r7:c06864a2 r6:ae250b40 r5:00000003
     r4:ae250b41
    [<802753fc>] (SyS_ioctl) from [<80108700>] (ret_fast_syscall+0x0/0x1c)
     r9:ae04e000 r8:801088a4 r7:00000036 r6:007f8c60 r5:00000001 r4:00017050
    Code: 1a000018 e596e034 e59e3368 e59331bc (e5930010)
    ---[ end trace 464e7d3c7f4b9706 ]---

Instead of trying to walk only the connectors in atomic state to which we
don't have access, just walk all connectors to find one connected to the
current encoder and containing a bus_format description.

Fixes: 49f98bc4d4 ("drm/imx: store internal bus configuration in crtc state")
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Liu Ying <gnuiyl@gmail.com>
2016-07-27 18:47:52 +02:00
Lucas Stach 7075ba7942 drm/imx: imx-ldb: check return code on panel attach
Check the return code on panel attach. Avoids a kernel crash later
on if the attach failed.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-07-12 18:24:29 +02:00
Philipp Zabel 3df0739052 drm/imx: turn remaining container_of macros into inline functions
This allows the compiler to do type checking.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-07-12 18:24:29 +02:00
Philipp Zabel 49f98bc4d4 drm/imx: store internal bus configuration in crtc state
The internal bus configuration is imx-drm specific crtc state. Store it
in imx_crtc_state and let the encoder atomic_check callbacks determine
bus_flags, bus_format and the sync pins, possibly taking into account
the mode and the connector display info.
The custom imx_drm_encoder structure can be replaced again with
drm_encoder.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-07-12 18:24:28 +02:00
Liu Ying f6e396e509 drm/imx: atomic phase 3 step 2: Legacy callback fixups
Now that we can use atomic configurations, all the legacy callbacks
of CRTCs, encoders and connectors can be switched to the atomic version.
For the imx-ldb driver, there is a clock parent setting mismatch bewteen
->enable and ->disable after the switch, so a fixup is added.  For the
imx-tve driver, since the encoder's callback ->dpms is replaced by
->disable, we need to move the setting for the IPU_CLK_EN bit(in register
TVE_COM_CONF_REG) from ->enable/->disable to ->mode_set, otherwise, the
relevant CRTC cannot be disabled correctly with a warning on DC stop timeout.

Signed-off-by: Liu Ying <gnuiyl@gmail.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-07-12 18:24:12 +02:00
Liu Ying 032003c5cd drm/imx: Remove encoders' ->prepare callbacks
The main task of imx encoders' ->prepare callbacks is to set bus_format,
bus_flags, di_vsync_pin and di_hsync_pin.  We may create a structure named
imx_encoder to cache them.  The atomic encoder callback ->disable may
replace ->prepare later, so let's remove ->prepare.

Signed-off-by: Liu Ying <gnuiyl@gmail.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-07-12 18:23:58 +02:00
Liu Ying 255c35f8fe drm/imx: atomic phase 2 step 1: Wire up state ->reset, ->duplicate and ->destroy
Wire up CRTCs', planes' and connectors' ->reset, ->duplicate and ->destroy state
hooks to use the default implementations from the atomic helper library.
The helpers track each DRM object state.

Signed-off-by: Liu Ying <gnuiyl@gmail.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-07-12 18:23:51 +02:00
Lothar Waßmann c82b4d73e2 drm/imx: imx-ldb: honor 'native-mode' property when selecting video mode from DT
This patch allows to select a specific video mode from a list of modes
defined in DT by setting the 'native-mode' property appropriately.

This change does not affect the behaviour of existing platforms, since
they either:
   - have just one display-timings subnode
   - have the native-mode property pointing to the first entry
   - let the bootloader select the appropriate timing

Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-05-30 09:14:00 +02:00
Philipp Zabel 620011e047 drm/imx: imx-ldb: use of_graph_get_endpoint_by_regs helper
Instead of using of_graph_get_port_by_id() to get the port and then
of_get_child_by_name() to get the first endpoint, get to the endpoint
in a single step.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-05-30 09:14:00 +02:00
Steve Longerbeam a6d206e28a drm/imx: imx-ldb: Add DDC support
Add support for reading EDID over Display Data Channel. If no DDC
adapter is available, falls back to hardcoded EDID or display-timings
node as before.

Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Akshay Bhat <akshay.bhat@timesys.com>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-05-30 09:14:00 +02:00
Dave Airlie 42e8560678 imx-drm vblank IRQ control, fence support, and of endpoint helpers
- Add and make use of drm_of_active_endpoint helpers
 - Silence a noisy dev_info into a dev_dbg
 - Stop touching primary fb on pageflips
 - Track flip state explicitly
 - Keep GEM buffer objects referenced while scanout is active
 - Implement fence sync by deferring flips to a workqueue for
   dma-bufs with pending fences
 - Actually disable vblank IRQs while they are not needed
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Merge tag 'imx-drm-next-20160301' of git://git.pengutronix.de/git/pza/linux into drm-next

imx-drm vblank IRQ control, fence support, and of endpoint helpers

- Add and make use of drm_of_active_endpoint helpers
- Silence a noisy dev_info into a dev_dbg
- Stop touching primary fb on pageflips
- Track flip state explicitly
- Keep GEM buffer objects referenced while scanout is active
- Implement fence sync by deferring flips to a workqueue for
  dma-bufs with pending fences
- Actually disable vblank IRQs while they are not needed

* tag 'imx-drm-next-20160301' of git://git.pengutronix.de/git/pza/linux:
  drm/imx: only enable vblank IRQs when needed
  drm/imx: implement fence sync
  drm/imx: keep GEM object referenced as long as scanout is active
  drm/imx: track flip state explicitly
  drm/imx: don't touch primary fb on pageflip
  drm/imx: ipuv3 plane: Replace dev_info with dev_dbg if a plane's CRTC changes
  gpu: ipu-v3: ipu-dc: Simplify display controller microcode setup
  drm/rockchip: remove rockchip_drm_encoder_get_mux_id
  drm/imx: remove imx_drm_encoder_get_mux_id
  drm: add drm_of_encoder_active_endpoint helpers
2016-03-02 17:52:51 +10:00
Philipp Zabel 53141e42cf drm/imx: remove imx_drm_encoder_get_mux_id
It is replaced by drm_of_encoder_active_port_id.

Suggested-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-03-01 08:33:38 +01:00
Carlos Palminha 8cd09a4ea4 drm/imx: removed optional dummy encoder mode_fixup function.
mode_fixup function for encoder drivers became optional with patch
http://patchwork.freedesktop.org/patch/msgid/1455106522-32307-1-git-send-email-palminha@synopsys.com

This patch set nukes all the dummy mode_fixup implementations.

(made on top of Daniel topic/drm-misc branch)

Signed-off-by: Carlos Palminha <palminha@synopsys.com>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/8bf274e8f6908142a9f940d3f2913e4a735e0caa.1455540137.git.palminha@synopsys.com
2016-02-16 15:33:05 +01:00
Ville Syrjälä 7ae847dd37 drm/imx: Constify function pointer structs
Moves a bunch of junk to .rodata from .data.

 drivers/gpu/drm/imx/imxdrm.ko:
-.rodata                      624
+.rodata                      652
-.data                        372
+.data                        344

 drivers/gpu/drm/imx/imx-ipuv3-crtc.ko:
-.rodata                      224
+.rodata                      280
-.data                        184
+.data                        128

 drivers/gpu/drm/imx/imx-ldb.ko:
-.rodata                      660
+.rodata                      784
-.data                        240
+.data                        116

 drivers/gpu/drm/imx/imx-tve.ko:
-.rodata                      400
+.rodata                      524
-.data                        416
+.data                        292

 drivers/gpu/drm/imx/parallel-display.ko:
-.rodata                      400
+.rodata                      524
-.data                        216
+.data                         92

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1450178476-26284-22-git-send-email-boris.brezillon@free-electrons.com
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-12-15 13:46:26 +01:00
Ville Syrjälä 13a3d91f17 drm: Pass 'name' to drm_encoder_init()
Done with coccinelle for the most part. However, it thinks '...' is
part of the semantic patch, so I put an 'int DOTDOTDOT' placeholder
in its place and got rid of it with sed afterwards.

@@
identifier dev, encoder, funcs;
@@
 int drm_encoder_init(struct drm_device *dev,
                      struct drm_encoder *encoder,
                      const struct drm_encoder_funcs *funcs,
                      int encoder_type
+                     ,const char *name, int DOTDOTDOT
                      )
{ ... }

@@
identifier dev, encoder, funcs;
@@
 int drm_encoder_init(struct drm_device *dev,
                      struct drm_encoder *encoder,
                      const struct drm_encoder_funcs *funcs,
                      int encoder_type
+                     ,const char *name, int DOTDOTDOT
                      );

@@
expression E1, E2, E3, E4;
@@
 drm_encoder_init(E1, E2, E3, E4
+                 ,NULL
                  )

v2: Add ', or NULL...' to @name kernel doc (Jani)
    Annotate the function with __printf() attribute (Jani)

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1449670818-2966-1-git-send-email-ville.syrjala@linux.intel.com
2015-12-11 09:13:20 +01:00
Philipp Zabel 5e501ed725 drm/imx: imx-ldb: allow to determine bus format from the connected panel
This patch makes the fsl,data-width and fsl,data-mapping device tree
properties optional if a panel is connected to the ldb output port
via the of_graph bindings. The data mapping is determined from the
display_info.bus_format field provided by the panel.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2015-03-31 12:44:50 +02:00
Philipp Zabel 3973aff065 drm/imx: imx-ldb: reset display clock input when disabling LVDS
The LDB driver changes the attached display interface's input clock mux
to the LDB_DI clock reference. Change it back again when disabling the
LVDS display. Changing back to the PLL5 for example allows to configure
the same DI for HDMI output later.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2015-03-31 12:44:49 +02:00
Philipp Zabel 751e2676ee drm/imx: imx-ldb: add drm_panel support
This patch allows to optionally attach the lvds-channel to a panel
supported by a drm_panel driver using of-graph bindings, instead of
supplying the modes via display-timings in the device tree.

This depends on of_graph_get_port_by_id and uses the OF graph to
link the optional DRM panel to the LDB lvds-channel. The output
port number is 1 on devices without the 4-port input multiplexer
(i.MX5) and 4 on devices with the mux (i.MX6).

Before:

	ldb {
		...

		lvds-channel@0 {
			...

			display-timings {
				native-timing = <&timing1>;
				timing1: etm0700g0dh6 {
					hactive = <800>;
					vactive = <480>;
					clock-frequency = <33260000>;
					hsync-len = <128>;
					hback-porch = <88>;
					hfront-porch = <40>;
					vsync-len = <2>;
					vback-porch = <33>;
					vfront-porch = <10>;
					hsync-active = <0>;
					vsync-active = <0>;
					...
				};
			};
			...
		};
	};

After:
	ldb {
		...

		lvds-channel@0 {
			...

			port@4 {
				reg = <4>;

				lvds_out: endpoint {
					remote_endpoint = <&panel_in>;
				};
			};
		};
	};

	panel {
		compatible = "edt,etm0700g0dh6", "simple-panel";
		...

		port {
			panel_in: endpoint {
				remote-endpoint = <&lvds_out>;
			};
		};
	};

[Fixed build error due to missing select on DRM_PANEL --rmk]
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2015-03-31 12:44:49 +02:00
Philipp Zabel 2872c8072a drm/imx: consolidate bus format variable names
This patch consolidates the different interface_pix_fmt, pixel_fmt, pix_fmt,
and pixfmt variables to a common name "bus_format" wherever they describe the
pixel format on the bus between display controller and encoder hardware.
At the same time, it renames imx_drm_panel_format to imx_drm_set_bus_format.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Tested-by: Emil Renner Berthing <kernel@esmil.dk>
2015-03-31 11:59:34 +02:00
Philipp Zabel a7c6e76fee drm/imx: switch to use media bus formats
imx-drm internally misused the V4L2_PIX_FMT constants, which are supposed to
describe the pixel format of frame buffers in memory, to describe the pixel
format on the bus between the display controller and the encoder hardware.
Now that MEDIA_BUS_FMT constants are available to drm drivers, use those
instead.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Tested-by: Emil Renner Berthing <kernel@esmil.dk>
2015-03-31 11:59:34 +02:00
Philipp Zabel 51dac94e80 drm/imx: imx-ldb: enable DI clock in encoder_mode_set
Commit eb10d63555 ("imx-drm: encoder prepare/mode_set must use adjusted mode")
broke the first LVDS modeset by using crtc->hwmode before crtc mode_set is
called. In fact, encoder prepare is not supposed to prepare the display clock
at all. Rather encoder mode_set should be used to set the DI clock rate, before
it is enabled by crtc commit.

Reported-by: Liu Ying <Ying.Liu@freescale.com>
Tested-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2015-02-23 17:19:01 +01:00
Steve Longerbeam eb10d63555 imx-drm: encoder prepare/mode_set must use adjusted mode
The encoder ->prepare() and ->mode_set() methods need to use the
hw adjusted mode, not the original mode.

Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2015-01-07 19:15:03 +01:00
Peter Seiderer f4876ffea6 drm/imx: imx-ldb: fix channel->edid memleak
If edid was allocated during bind, it must be freed again during unbind.

Signed-off-by: Peter Seiderer <ps.report@gmx.net>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2015-01-06 17:36:13 +01:00
Linus Torvalds dab363f938 Staging patches for 3.19-rc1
Here's the big staging tree pull request for 3.19-rc1.
 
 We continued to delete more lines than were added, always a good thing,
 but not at a huge rate this release, only about 70k lines removed
 overall mostly from removing the horrid bcm driver.
 
 Lots of normal staging driver cleanups and fixes all over the place,
 well over a thousand of them, the shortlog shows all the horrid details.
 
 The "contentious" thing here is the movement of the Android binder code
 out of staging into the "real" part of the kernel.  This is code that
 has been stable for a few years now and is working as-is in the tens of
 millions of devices with no issues.  Yes, the code is horrid, and the
 userspace api leaves a lot to be desired, but it's not going to change
 due to legacy issues that we have no control over.  Because so many
 devices and companies rely on this, and the code is stable, might as
 well promote it out of staging.
 
 This was all discussed at the Linux Plumbers conference, and everyone
 participating agreed that this was the best way forward.
 
 There is work happening to replace the binder code with something new
 that is happening right now, but I don't expect to see the results of
 that work for another year at the earliest.  If that ever happens, and
 Android switches over to it, I'll gladly remove this version.
 
 As for maintainers, I'll be glad to maintain this code, I've been doing
 it for the past few years with no problems.  I'll send a MAINTAINERS
 entry for it before 3.19-final is out, still need to talk to the Google
 developers about if they are willing to help with it or not, last I
 checked they were, which was good.
 
 All of these patches have been in linux-next for a while with no
 reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging driver updates from Greg KH:
 "Here's the big staging tree pull request for 3.19-rc1.

  We continued to delete more lines than were added, always a good
  thing, but not at a huge rate this release, only about 70k lines
  removed overall mostly from removing the horrid bcm driver.

  Lots of normal staging driver cleanups and fixes all over the place,
  well over a thousand of them, the shortlog shows all the horrid
  details.

  The "contentious" thing here is the movement of the Android binder
  code out of staging into the "real" part of the kernel.  This is code
  that has been stable for a few years now and is working as-is in the
  tens of millions of devices with no issues.  Yes, the code is horrid,
  and the userspace api leaves a lot to be desired, but it's not going
  to change due to legacy issues that we have no control over.  Because
  so many devices and companies rely on this, and the code is stable,
  might as well promote it out of staging.

  This was all discussed at the Linux Plumbers conference, and everyone
  participating agreed that this was the best way forward.

  There is work happening to replace the binder code with something new
  that is happening right now, but I don't expect to see the results of
  that work for another year at the earliest.  If that ever happens, and
  Android switches over to it, I'll gladly remove this version.

  As for maintainers, I'll be glad to maintain this code, I've been
  doing it for the past few years with no problems.  I'll send a
  MAINTAINERS entry for it before 3.19-final is out, still need to talk
  to the Google developers about if they are willing to help with it or
  not, last I checked they were, which was good.

  All of these patches have been in linux-next for a while with no
  reported issues"

* tag 'staging-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (1382 commits)
  Staging: slicoss: Fix long line issues in slicoss.c
  staging: rtl8712: remove unnecessary else after return
  staging: comedi: change some printk calls to pr_err
  staging: rtl8723au: hal: Removed the extra semicolon
  lustre: Deletion of unnecessary checks before three function calls
  staging: lustre: fix sparse warnings: static function declaration
  staging: lustre: fixed sparse warnings related to static declarations
  staging: unisys: remove duplicate header
  staging: unisys: remove unneeded structure
  staging: ft1000 : replace __attribute ((__packed__) with __packed
  drivers: staging: rtl8192e: Include "asm/unaligned.h" instead of "access_ok.h" in "rtl819x_BAProc.c"
  Drivers:staging:rtl8192e: Fixed checkpatch warning
  Drivers:staging:clocking-wizard: Added a newline
  staging: clocking-wizard: check for a valid clk_name pointer
  staging: rtl8723au: Hal_InitPGData() avoid unnecessary typecasts
  staging: rtl8723au: _DisableAnalog(): Avoid zero-init variables unnecessarily
  staging: rtl8723au: Remove unnecessary wrapper _ResetDigitalProcedure1()
  staging: rtl8723au: _ResetDigitalProcedure1_92C() reduce code obfuscation
  staging: rtl8723au: Remove unnecessary wrapper _DisableRFAFEAndResetBB()
  staging: rtl8723au: _DisableRFAFEAndResetBB8192C(): Reduce code obfuscation
  ...
2014-12-15 18:06:13 -08:00
Linus Torvalds 988adfdffd Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux
Pull drm updates from Dave Airlie:
 "Highlights:

   - AMD KFD driver merge

     This is the AMD HSA interface for exposing a lowlevel interface for
     GPGPU use.  They have an open source userspace built on top of this
     interface, and the code looks as good as it was going to get out of
     tree.

   - Initial atomic modesetting work

     The need for an atomic modesetting interface to allow userspace to
     try and send a complete set of modesetting state to the driver has
     arisen, and been suffering from neglect this past year.  No more,
     the start of the common code and changes for msm driver to use it
     are in this tree.  Ongoing work to get the userspace ioctl finished
     and the code clean will probably wait until next kernel.

   - DisplayID 1.3 and tiled monitor exposed to userspace.

     Tiled monitor property is now exposed for userspace to make use of.

   - Rockchip drm driver merged.

   - imx gpu driver moved out of staging

  Other stuff:

   - core:
        panel - MIPI DSI + new panels.
        expose suggested x/y properties for virtual GPUs

   - i915:
        Initial Skylake (SKL) support
        gen3/4 reset work
        start of dri1/ums removal
        infoframe tracking
        fixes for lots of things.

   - nouveau:
        tegra k1 voltage support
        GM204 modesetting support
        GT21x memory reclocking work

   - radeon:
        CI dpm fixes
        GPUVM improvements
        Initial DPM fan control

   - rcar-du:
        HDMI support added
        removed some support for old boards
        slave encoder driver for Analog Devices adv7511

   - exynos:
        Exynos4415 SoC support

   - msm:
        a4xx gpu support
        atomic helper conversion

   - tegra:
        iommu support
        universal plane support
        ganged-mode DSI support

   - sti:
        HDMI i2c improvements

   - vmwgfx:
        some late fixes.

   - qxl:
        use suggested x/y properties"

* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (969 commits)
  drm: sti: fix module compilation issue
  drm/i915: save/restore GMBUS freq across suspend/resume on gen4
  drm: sti: correctly cleanup CRTC and planes
  drm: sti: add HQVDP plane
  drm: sti: add cursor plane
  drm: sti: enable auxiliary CRTC
  drm: sti: fix delay in VTG programming
  drm: sti: prepare sti_tvout to support auxiliary crtc
  drm: sti: use drm_crtc_vblank_{on/off} instead of drm_vblank_{on/off}
  drm: sti: fix hdmi avi infoframe
  drm: sti: remove event lock while disabling vblank
  drm: sti: simplify gdp code
  drm: sti: clear all mixer control
  drm: sti: remove gpio for HDMI hot plug detection
  drm: sti: allow to change hdmi ddc i2c adapter
  drm/doc: Document drm_add_modes_noedid() usage
  drm/i915: Remove '& 0xffff' from the mask given to WA_REG()
  drm/i915: Invert the mask and val arguments in wa_add() and WA_REG()
  drm: Zero out DRM object memory upon cleanup
  drm/i915/bdw: Fix the write setting up the WIZ hashing mode
  ...
2014-12-15 15:52:01 -08:00
Philipp Zabel 6556f7f82b drm: imx: Move imx-drm driver out of staging
The imx-drm driver was put into staging mostly for the following reasons,
all of which have been addressed or superseded:
 - convert the irq driver to use linear irq domains
 - work out the device tree bindings, this lead to the common of_graph
   bindings being used
 - factor out common helper functions, this mostly resulted in the
   component framework and drm of_graph helpers.

Before adding new fixes, and certainly before adding new features,
move it into its proper place below drivers/gpu/drm.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-11-26 09:40:39 +10:00