On Wed, Feb 1, 2017 at 2:04 PM, Breno Matheus Lima <brenomatheus@xxxxxxxxx> wrote: > Hi, > > I'm trying to use the Seiko 43WVF1G panel (Datasheet link: > http://www.glyn.de/data/glyn/media/doc/43wvf1g-0.pdf) and the DRM_MXS driver > on > the i.MX6SX SabreSD. Applying the patch below removes the old > timing configuration on the dtsi and adds it to the panel-simple.c > I can get the display working, but the image is out of place. Another point > to > note is that it's necessary to set the reg_lcd_3v3 to regulator-always-on > otherwise the gpio3 27 does not get enabled. > > The main two problems that I'm having at the moment are: > > - Gpio3 27 is not being set by the driver, function > panel_simple_prepare(struct drm_panel *panel) is not being called. With the change below the regulator can be properly turned on: --- a/drivers/gpu/drm/mxsfb/mxsfb_drv.c +++ b/drivers/gpu/drm/mxsfb/mxsfb_drv.c @@ -103,12 +103,16 @@ static void mxsfb_pipe_enable(struct drm_simple_display_pipe *pipe, struct mxsfb_drm_private *mxsfb = drm_pipe_to_mxsfb_drm_private(pipe); mxsfb_crtc_enable(mxsfb); + drm_panel_prepare(mxsfb->panel); + drm_panel_enable(mxsfb->panel); } static void mxsfb_pipe_disable(struct drm_simple_display_pipe *pipe) { struct mxsfb_drm_private *mxsfb = drm_pipe_to_mxsfb_drm_private(pipe); + drm_panel_disable(mxsfb->panel); + drm_panel_unprepare(mxsfb->panel); mxsfb_crtc_disable(mxsfb); } Marek, not sure if this is the correct place to call drm_panel_prepare/enable. Any comments, please? Thanks _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
