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authorBrian Starkey <brian.starkey@arm.com>2016-10-24 15:27:59 +0100
committerRussell King <rmk+kernel@armlinux.org.uk>2016-10-31 12:04:54 +0000
commit90731c24d2db7ec04df43ddbcee9605183d05187 (patch)
tree982261902f96f5cd9edd7f8358602c8ecbbc9cae /drivers/gpu/drm/i2c
parentc8d2bc9bc39ebea8437fd974fdbc21847bb897a3 (diff)
drm/i2c: tda998x: mali-dp: hdlcd: refactor connector registration
Connectors shouldn't be registered until the rest of the whole device is set up, so that consistent state is presented to userspace. As such, remove the calls to drm_connector_register() and drm_connector_unregister() from tda998x, as these are now handled by drm_dev_(un)register() itself. To work with this change, the mali-dp and hdlcd bind and unbind sequences have to be reordered, to ensure that the componentised encoder/connector is bound before drm_dev_register() registers all connectors. Similarly, the device must be unregistered before the component is unbound. Altogether, this allows other drivers using tda998x to be de-midlayered, and to have less racy initialisation of their components. Splitting this commit into three (one per driver) isn't possible without intermediate breakage, so it is all squashed together here. Suggested-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Brian Starkey <brian.starkey@arm.com> Reviewed-by: Liviu Dudau <Liviu.Dudau@arm.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Diffstat (limited to 'drivers/gpu/drm/i2c')
-rw-r--r--drivers/gpu/drm/i2c/tda998x_drv.c8
1 files changed, 0 insertions, 8 deletions
diff --git a/drivers/gpu/drm/i2c/tda998x_drv.c b/drivers/gpu/drm/i2c/tda998x_drv.c
index f4315bc8d471..6e6fca20ba8b 100644
--- a/drivers/gpu/drm/i2c/tda998x_drv.c
+++ b/drivers/gpu/drm/i2c/tda998x_drv.c
@@ -1369,7 +1369,6 @@ const struct drm_connector_helper_funcs tda998x_connector_helper_funcs = {
static void tda998x_connector_destroy(struct drm_connector *connector)
{
- drm_connector_unregister(connector);
drm_connector_cleanup(connector);
}
@@ -1441,16 +1440,10 @@ static int tda998x_bind(struct device *dev, struct device *master, void *data)
if (ret)
goto err_connector;
- ret = drm_connector_register(&priv->connector);
- if (ret)
- goto err_sysfs;
-
drm_mode_connector_attach_encoder(&priv->connector, &priv->encoder);
return 0;
-err_sysfs:
- drm_connector_cleanup(&priv->connector);
err_connector:
drm_encoder_cleanup(&priv->encoder);
err_encoder:
@@ -1463,7 +1456,6 @@ static void tda998x_unbind(struct device *dev, struct device *master,
{
struct tda998x_priv *priv = dev_get_drvdata(dev);
- drm_connector_unregister(&priv->connector);
drm_connector_cleanup(&priv->connector);
drm_encoder_cleanup(&priv->encoder);
tda998x_destroy(priv);