[PATCH V2 09/16] drm/vc4: v3d: simplify clock retrieval

[Stefan Wahren]

Common pattern of handling deferred probe can be simplified with
dev_err_probe() and devm_clk_get_optional(). This results in much
less code.

Signed-off-by: Stefan Wahren <wahrenst at gmx.net>
---
 drivers/gpu/drm/vc4/vc4_v3d.c | 13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_v3d.c b/drivers/gpu/drm/vc4/vc4_v3d.c
index 1ede508a67d3..4bf3a8d24770 100644
--- a/drivers/gpu/drm/vc4/vc4_v3d.c
+++ b/drivers/gpu/drm/vc4/vc4_v3d.c
@@ -441,20 +441,11 @@ static int vc4_v3d_bind(struct device *dev, struct device *master, void *data)
 	vc4->v3d = v3d;
 	v3d->vc4 = vc4;

-	v3d->clk = devm_clk_get(dev, NULL);
+	v3d->clk = devm_clk_get_optional(dev, NULL);
 	if (IS_ERR(v3d->clk)) {
 		int ret = PTR_ERR(v3d->clk);

-		if (ret == -ENOENT) {
-			/* bcm2835 didn't have a clock reference in the DT. */
-			ret = 0;
-			v3d->clk = NULL;
-		} else {
-			if (ret != -EPROBE_DEFER)
-				dev_err(dev, "Failed to get V3D clock: %d\n",
-					ret);
-			return ret;
-		}
+		return dev_err_probe(dev, ret, "Failed to get V3D clock\n");
 	}

 	ret = platform_get_irq(pdev, 0);
--
2.34.1