From: Philipp Zabel Date: Fri, 13 Nov 2015 17:10:04 +0000 (+0100) Subject: drm/imx: parallel-display: allow to determine bus format from the connected panel X-Git-Tag: firefly_0821_release~176^2~601^2~3^2~7 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=9832e8110256f3e4301d97c0c6559e5b63825751;p=firefly-linux-kernel-4.4.55.git drm/imx: parallel-display: allow to determine bus format from the connected panel Similarly to commit 5e501ed7253b3 ("drm/imx: imx-ldb: allow to determine bus format from the connected panel"), if a panel is connected to the ldb output port via the of_graph bindings, the data mapping is determined from the display_info.bus_format field provided by the panel instead of from the optional interface_pix_fmt device tree property. Reported-by: Ulrich Ölmann Signed-off-by: Philipp Zabel Tested-by: Gary Bisson --- diff --git a/drivers/gpu/drm/imx/parallel-display.c b/drivers/gpu/drm/imx/parallel-display.c index b4deb9cf9d71..2e9b9f1b5cd2 100644 --- a/drivers/gpu/drm/imx/parallel-display.c +++ b/drivers/gpu/drm/imx/parallel-display.c @@ -54,7 +54,11 @@ static int imx_pd_connector_get_modes(struct drm_connector *connector) if (imxpd->panel && imxpd->panel->funcs && imxpd->panel->funcs->get_modes) { + struct drm_display_info *di = &connector->display_info; + num_modes = imxpd->panel->funcs->get_modes(imxpd->panel); + if (!imxpd->bus_format && di->num_bus_formats) + imxpd->bus_format = di->bus_formats[0]; if (num_modes > 0) return num_modes; }