From: Doug Anderson <dianders@chromium.org>
To: Rajeev Nandan <rajeevny@codeaurora.org>
Cc: dri-devel <dri-devel@lists.freedesktop.org>,
linux-arm-msm <linux-arm-msm@vger.kernel.org>,
freedreno <freedreno@lists.freedesktop.org>,
"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
<devicetree@vger.kernel.org>, LKML <linux-kernel@vger.kernel.org>,
Thierry Reding <thierry.reding@gmail.com>,
Sam Ravnborg <sam@ravnborg.org>, Rob Clark <robdclark@gmail.com>,
Lyude Paul <lyude@redhat.com>,
Jani Nikula <jani.nikula@intel.com>,
Rob Herring <robh@kernel.org>,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
Andrzej Hajda <a.hajda@samsung.com>,
Daniel Thompson <daniel.thompson@linaro.org>,
"Kristian H. Kristensen" <hoegsberg@chromium.org>,
Abhinav Kumar <abhinavk@codeaurora.org>,
Sean Paul <seanpaul@chromium.org>,
Kalyan Thota <kalyan_t@codeaurora.org>,
Krishna Manikandan <mkrishn@codeaurora.org>,
Lee Jones <lee.jones@linaro.org>,
Jingoo Han <jingoohan1@gmail.com>,
linux-fbdev@vger.kernel.org
Subject: Re: [v8 0/6] drm: Support basic DPCD backlight in panel-simple and add a new panel ATNA33XC20
Date: Fri, 9 Jul 2021 06:54:05 -0700 [thread overview]
Message-ID: <CAD=FV=UP9jrS=JG=TuB7+i9QcZv8GOLYdPdb3_KNhEsgapGeww@mail.gmail.com> (raw)
In-Reply-To: <1624726268-14869-1-git-send-email-rajeevny@codeaurora.org>
Hi,
On Sat, Jun 26, 2021 at 9:52 AM Rajeev Nandan <rajeevny@codeaurora.org> wrote:
>
> This series adds the support for the eDP panel that needs the backlight
> controlling over the DP AUX channel using DPCD registers of the panel
> as per the VESA's standard.
>
> This series also adds support for the Samsung eDP AMOLED panel that
> needs DP AUX to control the backlight, and introduces new delays in the
> @panel_desc.delay to support this panel.
>
> This patch series depends on the following two series:
> - Doug's series [1], exposed the DP AUX channel to the panel-simple.
> - Lyude's series [2], introduced new drm helper functions for DPCD
> backlight.
>
> This series is the logical successor to the series [3].
>
> Changes in v1:
> - Created dpcd backlight helper with very basic functionality, added
> backlight registration in the ti-sn65dsi86 bridge driver.
>
> Changes in v2:
> - Created a new DisplayPort aux backlight driver and moved the code from
> drm_dp_aux_backlight.c (v1) to the new driver.
>
> Changes in v3:
> - Fixed module compilation (kernel test bot).
>
> Changes in v4:
> - Added basic DPCD backlight support in panel-simple.
> - Added support for a new Samsung panel ATNA33XC20 that needs DPCD
> backlight controlling and has a requirement of delays between enable
> GPIO and regulator.
>
> Changes in v5:
> Addressed review suggestions from Douglas:
> - Created a new API drm_panel_dp_aux_backlight() in drm_panel.c
> - Moved DP AUX backlight functions from panel-simple.c to drm_panel.c
> - panel-simple probe() calls drm_panel_dp_aux_backlight() to create
> backlight when the backlight phandle is not specified in panel DT
> and DP AUX channel is present.
> - Added check for drm_edp_backlight_supported() before registering.
> - Removed the @uses_dpcd_backlight flag from panel_desc as this
> should be auto-detected.
> - Updated comments/descriptions.
>
> Changes in v6:
> - Rebased
> - Updated wanrning messages, fixed word wrapping in comments.
> - Fixed ordering of memory allocation
>
> Changes in v7:
> - Updated the disable_to_power_off and power_to_enable panel delays
> as discovered at <https://crrev.com/c/2966167> (Douglas)
>
> Changes in v8:
> - Now using backlight_is_blank() to get the backlight blank status (Sam Ravnborg)
> - Added a new patch #4 to fix the warnings for eDP panel description (Sam Ravnborg)
>
> [1] https://lore.kernel.org/dri-devel/20210525000159.3384921-1-dianders@chromium.org/
> [2] https://lore.kernel.org/dri-devel/20210514181504.565252-1-lyude@redhat.com/
> [3] https://lore.kernel.org/dri-devel/1619416756-3533-1-git-send-email-rajeevny@codeaurora.org/
>
> Rajeev Nandan (6):
> drm/panel: add basic DP AUX backlight support
> drm/panel-simple: Support DP AUX backlight
> drm/panel-simple: Support for delays between GPIO & regulator
> drm/panel-simple: Update validation warnings for eDP panel description
> dt-bindings: display: simple: Add Samsung ATNA33XC20
> drm/panel-simple: Add Samsung ATNA33XC20
>
> .../bindings/display/panel/panel-simple.yaml | 2 +
> drivers/gpu/drm/drm_panel.c | 108 +++++++++++++++++++++
> drivers/gpu/drm/panel/panel-simple.c | 73 +++++++++++++-
> include/drm/drm_panel.h | 15 ++-
> 4 files changed, 190 insertions(+), 8 deletions(-)
Pushed to drm-misc-next.
4bfe6c8f7c23 drm/panel-simple: Add Samsung ATNA33XC20
c20dec193584 dt-bindings: display: simple: Add Samsung ATNA33XC20
13aceea56fd5 drm/panel-simple: Update validation warnings for eDP
panel description
18a1488bf1e1 drm/panel-simple: Support for delays between GPIO & regulator
bfd451403d70 drm/panel-simple: Support DP AUX backlight
10f7b40e4f30 drm/panel: add basic DP AUX backlight support
-Doug
next prev parent reply other threads:[~2021-07-09 13:54 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-26 16:51 [v8 0/6] drm: Support basic DPCD backlight in panel-simple and add a new panel ATNA33XC20 Rajeev Nandan
2021-06-26 16:51 ` [v8 1/6] drm/panel: add basic DP AUX backlight support Rajeev Nandan
2021-07-12 9:41 ` Thomas Zimmermann
2021-07-12 9:45 ` Thomas Zimmermann
2021-07-12 13:39 ` Doug Anderson
2021-07-12 15:03 ` Doug Anderson
2021-06-26 16:51 ` [v8 2/6] drm/panel-simple: Support DP AUX backlight Rajeev Nandan
2021-07-09 13:54 ` Doug Anderson [this message]
2021-07-09 20:40 ` [v8 0/6] drm: Support basic DPCD backlight in panel-simple and add a new panel ATNA33XC20 Ville Syrjälä
2021-07-09 22:31 ` Doug Anderson
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