On Wed, Jan 22, 2014 at 02:48:28PM +0100, Denis Carikli wrote:
> If de-active and/or pixelclk-active properties were set in the
> display-timings DT node, they were not used.
>
> Instead the data-enable and the pixel data clock polarity
> were hardcoded.
>
> This change is needed for making the eukrea-cpuimx51
> QVGA display work.
>
> Cc: David Airlie <airlied at linux.ie>
> Cc: Eric B?nard <eric at eukrea.com>
> Cc: Greg Kroah-Hartman <gregkh at linuxfoundation.org>
> Cc: Philipp Zabel <p.zabel at pengutronix.de>
> Cc: Sascha Hauer <kernel at pengutronix.de>
> Cc: Shawn Guo <shawn.guo at linaro.org>
> Cc: dri-devel at lists.freedesktop.org
> Cc: driverdev-devel at linuxdriverproject.org
> Cc: linux-arm-kernel at lists.infradead.org
These CC blocks are massive... What's the point of them?
> if (np) {
> struct drm_display_mode *mode = drm_mode_create(connector->dev);
> + struct device_node *timings_np;
> + struct device_node *mode_np;
> + u32 val;
> +
> of_get_drm_display_mode(np, &imxpd->mode, 0);
> +
> + timings_np = of_get_child_by_name(np, "display-timings");
> + if (timings_np) {
> + /* get the display mode node */
> + mode_np = of_parse_phandle(timings_np,
> + "native-mode", 0);
> + if (!mode_np)
> + mode_np = of_get_next_child(timings_np, NULL);
> +
> + /* set de-active to 1 if not set */
> + of_property_read_u32(mode_np, "de-active", &val);
> + if (val) {
If of_property_read_u32() fails then val is uninitialized.
regards,
dan carpenter
