[PATCH 19/23] drm: omapdrm: panel-dsi-cm: improve DT support

Sebastian Reichel
2016-03-08T16:55:19Z

Introduce new DT properties, so that it's possible
to use different panels with the driver.

* resolution-x (default: 864)
* resolution-y (default: 480)
* has-dsi-backlight (default: no backlight)

Signed-off-by: Sebastian Reichel <sre@kernel.org>
---
drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c | 17 ++++++++++++-----
1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c b/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c
index 8316b6c2d8aa..4c1e76da68cd 100644
--- a/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c
+++ b/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c
@@ -1240,7 +1240,12 @@ static int dsicm_probe_of(struct platform_device *pdev)

ddata->in = in;

- /* TODO: ulps, backlight */
+ ddata->use_dsi_backlight = of_property_read_bool(node, "has-dsi-backlight");
+
+ of_property_read_u32(node, "resolution-x", (u32*) &ddata->timings.x_res);
+ of_property_read_u32(node, "resolution-y", (u32*) &ddata->timings.y_res);
+
+ ddata->timings.pixelclock = ddata->timings.x_res * ddata->timings.y_res * 60;

return 0;
}
@@ -1263,6 +1268,12 @@ static int dsicm_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, ddata);
ddata->pdev = pdev;

+ /* setup defaults */
+ ddata->ulps_timeout = 500;
+ ddata->timings.x_res = 864;
+ ddata->timings.y_res = 480;
+ ddata->timings.pixelclock = 864 * 480 * 60;
+
if (dev_get_platdata(dev)) {
r = dsicm_probe_pdata(pdev);
if (r)
@@ -1275,10 +1286,6 @@ static int dsicm_probe(struct platform_device *pdev)
return -ENODEV;
}

- ddata->timings.x_res = 864;
- ddata->timings.y_res = 480;
- ddata->timings.pixelclock = 864 * 480 * 60;
-
dssdev = &ddata->dssdev;
dssdev->dev = dev;
dssdev->driver = &dsicm_ops;
--
2.7.0