BACKPORT: media: venus: drop bogus probe deferrals

The encoder and decoder platform devices are registered by the venus
driver as children of the venus device, but even if someone were to mess
this up no amount of probe deferring is going to conjure up a parent.

Relatedly, the venus driver sets its driver data before registering the
child devices and if this ever breaks we want to learn about it by
failing probe.

Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Vikash Garodia <vikash.garodia@oss.qualcomm.com>
Reviewed-by: Dikshita Agarwal <dikshita.agarwal@oss.qualcomm.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
Link: https://lore.kernel.org/all/20251017055809.8037-1-johan@kernel.org/
(cherry picked from commit 6e971cf)

Author: jhovold

drivers/media/platform/qcom/venus/vdec.c

@@ -1784,12 +1784,9 @@ static int vdec_probe(struct platform_device *pdev)
 	struct venus_core *core;
 	int ret;
 
-	if (!dev->parent)
-		return -EPROBE_DEFER;
-
 	core = dev_get_drvdata(dev->parent);
 	if (!core)
-		return -EPROBE_DEFER;
+		return -EINVAL;
 
 	platform_set_drvdata(pdev, core);
 

drivers/media/platform/qcom/venus/venc.c

@@ -1560,12 +1560,9 @@ static int venc_probe(struct platform_device *pdev)
 	struct venus_core *core;
 	int ret;
 
-	if (!dev->parent)
-		return -EPROBE_DEFER;
-
 	core = dev_get_drvdata(dev->parent);
 	if (!core)
-		return -EPROBE_DEFER;
+		return -EINVAL;
 
 	platform_set_drvdata(pdev, core);