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Message-ID: <f69f31dd-9e7e-c585-f470-2a552f869e75@ti.com>
Date: Thu, 15 Dec 2016 10:12:12 +0200
From: Peter Ujfalusi <peter.ujfalusi@...com>
To: Laurent Pinchart <laurent.pinchart@...asonboard.com>,
<dri-devel@...ts.freedesktop.org>
CC: <thierry.reding@...il.com>, <airlied@...ux.ie>,
<tomi.valkeinen@...com>, Mark Rutland <mark.rutland@....com>,
<devicetree@...r.kernel.org>, <daniel.vetter@...ll.ch>,
<linux-kernel@...r.kernel.org>, Rob Herring <robh+dt@...nel.org>
Subject: Re: [PATCH 00/26] drm/omap: Convert to use videomode from
omap_video_timings
On 12/14/2016 11:32 PM, Laurent Pinchart wrote:
> Hi Peter,
>
> On Thursday 01 Sep 2016 14:22:54 Peter Ujfalusi wrote:
>> Hi,
>>
>> The following series will convert the omapdrm stack to use the generic
>> videmode instead of the private omap_video_timings struct for the panel
>> information.
>>
>> Since we have several panels under omapdrm/displays/ where the data drive
>> edge is set to be different then the sync drive edge, the first three patch
>> will add support to select the sync drive edge via DT.
>> I was not able to locate the datasheet for all the panels and because the
>> different edge was used in omapdrm and omapfb for a long time without
>> complains from users - and they were written this way - I think it is a
>> valid that we can have panels requiring different edge for data and sync to
>> be driven.
>
> That's very peculiar. Have you been able to locate at least one panel
> datasheet that documents this requirement ?
No, not really. patch 23-26 adds comments to panel drivers where the
existing implementation contradicts the information in the panel's
documentation. I was not able to locate any document for the Sony
acx565akm panel.
I opted to not change the behavior of the panel drivers regarding to
this since I don't have access to neither of the boards with the given
displays and this was the configuration they were using and I assume
they were/are working fine.
>> The rest of the patches are most mechanical ones. I have decided to split it
>> up to small chunks and did one change at the time to finally remove the
>> omap_video_timings from omapdrm.
>>
>>
>> CC: Rob Herring <robh+dt@...nel.org>
>> CC: Mark Rutland <mark.rutland@....com>
>> CC: devicetree@...r.kernel.org
>>
>> Regards,
>> Peter
>> ---
>> Peter Ujfalusi (26):
>> dt-bindings: display: display-timing: Add property to configure sync
>> drive edge
>> video: display_timing: Add flags to select the edge when the sync is
>> driven
>> video: of: display_timing: Add support for syncclk-active property
>> drm/omap: omap_display_timings: rename x_res to hactive
>> drm/omap: omap_display_timings: rename y_res to vactive
>> drm/omap: omap_display_timings: rename hsw to hsync_len
>> drm/omap: omap_display_timings: rename hfp to hfront_porch
>> drm/omap: omap_display_timings: rename hbp to hback_porch
>> drm/omap: omap_display_timings: rename vsw to vsync_len
>> drm/omap: omap_display_timings: rename vfp to vfront_porch
>> drm/omap: omap_display_timings: rename vbp to vback_porch
>> drm/omap: HDMI5: Use pointer to cfg->v_fc_config.timings in
>> hdmi_core_video_config
>> drm/omap: omap_display_timings: Use display_flags for interlace mode
>> drm/omap: dispc: Simplify _dispc_mgr_set_lcd_timings() parameters
>> drm/omap: omap_display_timings: Use display_flags for h/vsync level
>> drm/omap: omap_display_timings: Use display_flags for DE level
>> drm/omap: omap_display_timings: Use display_flags for double_pixel
>> mode
>> drm/omap: omap_display_timings: Use display_flags for pixel data edge
>> drm/omap: omap_display_timings: Use display_flags for sync edge
>> drm/omap: Change the types of struct omap_video_timings members
>> drm/omap: Replace struct omap_video_timings with videomode
>> drm/omap: Use consistent name for struct videomode
>> drm/omap: panel-tpo-td043mtea1: Add note for incorrect sync drive edge
>> drm/omap: panel-tpo-td028ttec1: Add note for incorrect sync drive edge
>> drm/omap: panel-sharp-ls037v7dw01: Add note for incorrect data drive
>> edge
>> drm/omap: panel-lgphilips-lb035q02: Add note for incorrect data drive
>> edge and DE level
>>
>> .../bindings/display/panel/display-timing.txt | 6 +
>> .../gpu/drm/omapdrm/displays/connector-analog-tv.c | 47 ++---
>> drivers/gpu/drm/omapdrm/displays/connector-dvi.c | 50 +++--
>> drivers/gpu/drm/omapdrm/displays/connector-hdmi.c | 49 +++--
>> drivers/gpu/drm/omapdrm/displays/encoder-opa362.c | 20 +-
>> drivers/gpu/drm/omapdrm/displays/encoder-tfp410.c | 31 ++-
>> .../gpu/drm/omapdrm/displays/encoder-tpd12s015.c | 20 +-
>> drivers/gpu/drm/omapdrm/displays/panel-dpi.c | 30 ++-
>> drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c | 25 ++-
>> .../omapdrm/displays/panel-lgphilips-lb035q02.c | 59 +++---
>> .../drm/omapdrm/displays/panel-nec-nl8048hl11.c | 52 +++--
>> .../drm/omapdrm/displays/panel-sharp-ls037v7dw01.c | 58 +++---
>> .../drm/omapdrm/displays/panel-sony-acx565akm.c | 53 +++--
>> .../drm/omapdrm/displays/panel-tpo-td028ttec1.c | 57 +++---
>> .../drm/omapdrm/displays/panel-tpo-td043mtea1.c | 54 ++---
>> drivers/gpu/drm/omapdrm/dss/dispc.c | 222 ++++++++----------
>> drivers/gpu/drm/omapdrm/dss/display.c | 78 +-------
>> drivers/gpu/drm/omapdrm/dss/dpi.c | 40 ++--
>> drivers/gpu/drm/omapdrm/dss/dsi.c | 156 ++++++++-------
>> drivers/gpu/drm/omapdrm/dss/dss.h | 5 +-
>> drivers/gpu/drm/omapdrm/dss/hdmi.h | 8 +-
>> drivers/gpu/drm/omapdrm/dss/hdmi4.c | 31 +--
>> drivers/gpu/drm/omapdrm/dss/hdmi4_core.c | 8 +-
>> drivers/gpu/drm/omapdrm/dss/hdmi5.c | 31 +--
>> drivers/gpu/drm/omapdrm/dss/hdmi5_core.c | 85 ++++----
>> drivers/gpu/drm/omapdrm/dss/hdmi_wp.c | 73 ++++---
>> drivers/gpu/drm/omapdrm/dss/omapdss.h | 98 +++------
>> drivers/gpu/drm/omapdrm/dss/output.c | 5 +-
>> drivers/gpu/drm/omapdrm/dss/rfbi.c | 49 +++--
>> drivers/gpu/drm/omapdrm/dss/sdi.c | 33 ++-
>> drivers/gpu/drm/omapdrm/dss/venc.c | 97 +++++----
>> drivers/gpu/drm/omapdrm/omap_connector.c | 87 +-------
>> drivers/gpu/drm/omapdrm/omap_crtc.c | 17 +-
>> drivers/gpu/drm/omapdrm/omap_drv.h | 7 +-
>> drivers/gpu/drm/omapdrm/omap_encoder.c | 10 +-
>> drivers/video/of_display_timing.c | 9 +
>> include/video/display_timing.h | 4 +
>> 37 files changed, 778 insertions(+), 986 deletions(-)
>
--
Péter
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