[PATCH] drm/amd: Adjust output for discovery error handling

[Mario Limonciello]

From: Mario Limonciello <mario.limonciello at amd.com>

commit 017fbb6690c22 ("drm/amdgpu/discovery: check ip_discovery fw file
available") added support for reading an amdgpu IP discovery bin file
for some specific products. If it's not found then it will fallback to
hardcoded values. However if it's not found there is also a lot of noise
about missing files and errors.

Adjust the error handling to decrease most messages to DEBUG and to show
at most one message to a user about the missing file at INFO level.

Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/4312
Fixes: 017fbb6690c22 ("drm/amdgpu/discovery: check ip_discovery fw file available")
Signed-off-by: Mario Limonciello <mario.limonciello at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c | 17 ++++++-----------
 1 file changed, 6 insertions(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
index a0e9bf9b27108..8e4526a8c2600 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
@@ -321,10 +321,9 @@ static int amdgpu_discovery_read_binary_from_file(struct amdgpu_device *adev,
 	const struct firmware *fw;
 	int r;
 
-	r = request_firmware(&fw, fw_name, adev->dev);
+	r = firmware_request_nowarn(&fw, fw_name, adev->dev);
 	if (r) {
-		dev_err(adev->dev, "can't load firmware \"%s\"\n",
-			fw_name);
+		drm_info(&adev->ddev, "Optional firmware \"%s\" was not found\n", fw_name);
 		return r;
 	}
 
@@ -459,16 +458,12 @@ static int amdgpu_discovery_init(struct amdgpu_device *adev)
 	/* Read from file if it is the preferred option */
 	fw_name = amdgpu_discovery_get_fw_name(adev);
 	if (fw_name != NULL) {
-		dev_info(adev->dev, "use ip discovery information from file");
+		drm_dbg(&adev->ddev, "use ip discovery information from file");
 		r = amdgpu_discovery_read_binary_from_file(adev, adev->mman.discovery_bin, fw_name);
-
-		if (r) {
-			dev_err(adev->dev, "failed to read ip discovery binary from file\n");
-			r = -EINVAL;
+		if (r)
 			goto out;
-		}
-
 	} else {
+		drm_dbg(&adev->ddev, "use ip discovery information from memory");
 		r = amdgpu_discovery_read_binary_from_mem(
 			adev, adev->mman.discovery_bin);
 		if (r)
@@ -1339,7 +1334,7 @@ static int amdgpu_discovery_reg_base_init(struct amdgpu_device *adev)
 
 	r = amdgpu_discovery_init(adev);
 	if (r) {
-		DRM_ERROR("amdgpu_discovery_init failed\n");
+		drm_warn(&adev->ddev, "%s failed: %d\n", __func__, r);
 		return r;
 	}
 
-- 
2.43.0