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drm/imx: parallel-display: allow to determine bus format from the connected panel

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Similarly to commit 5e501ed725 ("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 <u.oelmann@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Tested-by: Gary Bisson <gary.bisson@boundarydevices.com>
This commit is contained in:
Philipp Zabel 2015-11-13 18:10:04 +01:00
parent a7ed3c2b15
commit 9832e81102
1 changed files with 4 additions and 0 deletions
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4
drivers/gpu/drm/imx/parallel-display.c
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@ -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;
}