drivers/gpu/drm/renesas/shmobile/shmob_drm_kms.c

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/renesas/shmobile/shmob_drm_kms.c

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/renesas/shmobile/shmob_drm_kms.c
Extension
.c
Size
5133 bytes
Lines
190
Domain
Driver Families
Bucket
drivers/gpu
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

if (mode_cmd->pitches[1] != mode_cmd->pitches[0] * chroma_cpp) {
			dev_dbg(dev->dev,
				"luma and chroma pitches do not match\n");
			return ERR_PTR(-EINVAL);
		}
	}

	return drm_gem_fb_create(dev, file_priv, info, mode_cmd);
}

static const struct drm_mode_config_funcs shmob_drm_mode_config_funcs = {
	.fb_create = shmob_drm_fb_create,
	.atomic_check = drm_atomic_helper_check,
	.atomic_commit = drm_atomic_helper_commit,
};

int shmob_drm_modeset_init(struct shmob_drm_device *sdev)
{
	struct drm_device *dev = &sdev->ddev;
	int ret;

	ret = drmm_mode_config_init(dev);
	if (ret)
		return ret;

	ret = shmob_drm_crtc_create(sdev);
	if (ret < 0)
		return ret;

	ret = shmob_drm_encoder_create(sdev);
	if (ret < 0)
		return ret;

	ret = shmob_drm_connector_create(sdev, &sdev->encoder);
	if (ret < 0)
		return ret;

	drm_mode_config_reset(dev);

	drm_kms_helper_poll_init(dev);

	sdev->ddev.mode_config.min_width = 0;
	sdev->ddev.mode_config.min_height = 0;
	sdev->ddev.mode_config.max_width = 4095;
	sdev->ddev.mode_config.max_height = 4095;
	sdev->ddev.mode_config.funcs = &shmob_drm_mode_config_funcs;

	return 0;
}

Annotation

Implementation Notes