Hi! > > I got "uncompressing Linux 4.13" on serial console now, debug LEDs > > blinking, and if I use a flashlight, I see output on the screen, too. > > > > (What do I need to do to get the backlight working?) > > Glad you got it working :) For backlight you can add this > in drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c: > > add the following code at the end of dsicm_probe: > > ----------------------------------------------------------- > mutex_unlock(&ddata->lock); > mutex_lock(&ddata->lock); > ddata->in->ops.dsi->bus_lock(ddata->in); > r = dsicm_wake_up(ddata); > if (!r) > r = dsicm_dcs_write_1(ddata, DCS_BRIGHTNESS, 100); > ddata->in->ops.dsi->bus_unlock(ddata->in); > mutex_unlock(&ddata->lock); > ----------------------------------------------------------- That one did not work; but after some help from Filip, this did: Best regards, Pavel diff --git a/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c b/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c index b5ea8e5..2cb74cc 100644 --- a/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c +++ b/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c @@ -385,7 +385,7 @@ static int dsicm_bl_update_status(struct backlight_device *dev) r = dsicm_wake_up(ddata); if (!r) - r = dsicm_dcs_write_1(ddata, DCS_BRIGHTNESS, level); + r = dsicm_dcs_write_1(ddata, DCS_BRIGHTNESS, 0xff /* level */); in->ops.dsi->bus_unlock(in); } -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
Attachment:
signature.asc
Description: Digital signature
