[PATCH v2 8/8] imx-drm: use for_each_endpoint_of_node macro in imx_drm_encoder_parse_of

Philipp Zabel
2014-09-10T11:00:41Z

Using the for_each_... macro should make the code bit shorter and
easier to read.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
---
drivers/staging/imx-drm/imx-drm-core.c | 17 +++++++----------
1 file changed, 7 insertions(+), 10 deletions(-)

diff --git a/drivers/staging/imx-drm/imx-drm-core.c b/drivers/staging/imx-drm/imx-drm-core.c
index 9b5222c..460d785 100644
--- a/drivers/staging/imx-drm/imx-drm-core.c
+++ b/drivers/staging/imx-drm/imx-drm-core.c
@@ -438,17 +438,13 @@ int imx_drm_encoder_parse_of(struct drm_device *drm,
struct drm_encoder *encoder, struct device_node *np)
{
struct imx_drm_device *imxdrm = drm->dev_private;
- struct device_node *ep = NULL;
+ struct device_node *ep;
uint32_t crtc_mask = 0;
- int i;
+ int i = 0;

- for (i = 0; ; i++) {
+ for_each_endpoint_of_node(np, ep) {
u32 mask;

- ep = of_graph_get_next_endpoint(np, ep);
- if (!ep)
- break;
-
mask = imx_drm_find_crtc_mask(imxdrm, ep);

/*
@@ -457,14 +453,15 @@ int imx_drm_encoder_parse_of(struct drm_device *drm,
* not been registered yet. Defer probing, and hope that
* the required CRTC is added later.
*/
- if (mask == 0)
+ if (mask == 0) {
+ of_node_put(ep);
return -EPROBE_DEFER;
+ }

crtc_mask |= mask;
+ i++;
}

- if (ep)
- of_node_put(ep);
if (i == 0)
return -ENOENT;

--
2.1.0