Hey all, Here's a set which allows us to add an "override" mode to the simple panel dt node. The override mode can be used for devices for which the typical display timing is not sufficient, yet the overriding mode should not be applied across the entire platform.
An example of this (and the motivation) is the Chromebook Plus (kevin). If the sharp panel on this laptop is run at the mode advertised in the datasheet (and what is currently in mainline), it creates interference with the touch digitizer. To fix this, we need to run the pixel clock at a slightly higher rate (which we can do by increasing the back porches). This "fix" should not be used on other rockchip devices using this panel since they might not encounter the same interference. If an override mode is present, it will be checked against the panel's display_timing range. When validated, it will be exposed as the preferred mode along with the 'typical' modes generated from the panel's display_timing. This set is based on Linus' master to pick up the edp support in rk3399-gru-kevin.dts. Thanks, Sean Cc: Doug Anderson <diand...@chromium.org> Cc: Heiko Stuebner <he...@sntech.de> Cc: Jeffy Chen <jeffy.c...@rock-chips.com> Cc: Rob Herring <robh...@kernel.org> Cc: Stéphane Marchesin <marc...@chromium.org> Cc: Thierry Reding <thierry.red...@gmail.com> Cc: devicet...@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Cc: linux-rockc...@lists.infradead.org Sean Paul (3): drm/panel: simple: Add ability to override typical timing drm/panel: simple: Use display_timing for lq123p1jx31 arm64: dts: rockchip: Specify override mode for kevin panel .../bindings/display/panel/simple-panel.txt | 20 +++++ arch/arm64/boot/dts/rockchip/rk3399-gru-kevin.dts | 14 ++++ drivers/gpu/drm/panel/panel-simple.c | 96 ++++++++++++++++++---- 3 files changed, 115 insertions(+), 15 deletions(-) -- 2.16.0.rc1.238.g530d649a79-goog _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
