[PATCH v4 2/4] drm/imx: Convert the probe function to the generic drm_of_component_probe()
Liviu Dudau
Liviu.Dudau at arm.com
Tue Oct 20 02:23:13 PDT 2015
The generic function is functionally equivalent to the driver's
imx_drm_platform_probe(). Use the generic function and reduce the
overall code size.
Signed-off-by: Liviu Dudau <Liviu.Dudau at arm.com>
Acked-by: Russell King <rmk+kernel at arm.linux.org.uk>
---
drivers/gpu/drm/imx/imx-drm-core.c | 55 +++-----------------------------------
1 file changed, 4 insertions(+), 51 deletions(-)
diff --git a/drivers/gpu/drm/imx/imx-drm-core.c b/drivers/gpu/drm/imx/imx-drm-core.c
index de00a6c..64f16ea 100644
--- a/drivers/gpu/drm/imx/imx-drm-core.c
+++ b/drivers/gpu/drm/imx/imx-drm-core.c
@@ -531,59 +531,12 @@ static const struct component_master_ops imx_drm_ops = {
static int imx_drm_platform_probe(struct platform_device *pdev)
{
- struct device_node *ep, *port, *remote;
- struct component_match *match = NULL;
- int ret;
- int i;
-
- /*
- * Bind the IPU display interface ports first, so that
- * imx_drm_encoder_parse_of called from encoder .bind callbacks
- * works as expected.
- */
- for (i = 0; ; i++) {
- port = of_parse_phandle(pdev->dev.of_node, "ports", i);
- if (!port)
- break;
-
- component_match_add(&pdev->dev, &match, compare_of, port);
- }
+ int ret = drm_of_component_probe(&pdev->dev, compare_of, &imx_drm_ops);
- if (i == 0) {
- dev_err(&pdev->dev, "missing 'ports' property\n");
- return -ENODEV;
- }
+ if (!ret)
+ ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
- /* Then bind all encoders */
- for (i = 0; ; i++) {
- port = of_parse_phandle(pdev->dev.of_node, "ports", i);
- if (!port)
- break;
-
- for_each_child_of_node(port, ep) {
- remote = of_graph_get_remote_port_parent(ep);
- if (!remote || !of_device_is_available(remote)) {
- of_node_put(remote);
- continue;
- } else if (!of_device_is_available(remote->parent)) {
- dev_warn(&pdev->dev, "parent device of %s is not available\n",
- remote->full_name);
- of_node_put(remote);
- continue;
- }
-
- component_match_add(&pdev->dev, &match, compare_of,
- remote);
- of_node_put(remote);
- }
- of_node_put(port);
- }
-
- ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
- if (ret)
- return ret;
-
- return component_master_add_with_match(&pdev->dev, &imx_drm_ops, match);
+ return ret;
}
static int imx_drm_platform_remove(struct platform_device *pdev)
--
2.6.0
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