Re: [PATCH 12/13] media: qcom: camss: Add CSID Gen3 support for sm8550

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Hi Vladimir,

On 9/30/2024 5:23 PM, Vladimir Zapolskiy wrote:

@@ -1049,7 +1050,10 @@ static int csid_set_test_pattern(struct csid_device *csid, s32 value)
      tg->enabled = !!value;
-    return csid->res->hw_ops->configure_testgen_pattern(csid, value);
+    if (hw_ops->configure_testgen_pattern)
+        return -EOPNOTSUPP;
+    else
+        return hw_ops->configure_testgen_pattern(csid, value);
  }
  /*

Here you accedentally break the TPG on all platforms and introduce a NULL
pointer dereference, please fix it.

Any generic/non-sm8550 support related changes like the part of this
one shall be split into a stand-alone generic change aside of the added
SM8550 platform support, it will simplify patch reviews and hunting bugs
like the one above.


Thanks for catching this. This is indeed a bug which is introduced by this patch. And I will follow your suggestion to use a stand-alone generic change for the TPG part.

Thanks,
Depeng




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