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drm: kirin: Add register connect helper functions in drm init

Browse source 
As part of refactoring the kirin driver to better support
different hardware revisions, this patch adds a flag to the
device specific driver data so that we can conditionally
register the connectors at init.

Cc: Rongrong Zou <zourongrong@gmail.com>
Cc: Xinliang Liu <z.liuxinliang@hisilicon.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel <dri-devel@lists.freedesktop.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Xinliang Liu <z.liuxinliang@hisilicon.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Xu YiPing <xuyiping@hisilicon.com>
[jstultz: reworded commit message]
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190820230626.23253-20-john.stultz@linaro.org
This commit is contained in:
Xu YiPing 2019-08-20 23:06:20 +00:00 committed by Sam Ravnborg
parent 1053d01864
commit d606dc9a63
3 changed files with 45 additions and 0 deletions
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1
drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
View file

@ -1073,6 +1073,7 @@ static struct drm_driver ade_driver = {
};
struct kirin_drm_data ade_driver_data = {
.register_connects = false,
.num_planes = ADE_CH_NUM,
.prim_plane = ADE_CH1,
.channel_formats = channel_formats,

43
drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c
View file

@ -98,6 +98,40 @@ static int compare_of(struct device *dev, void *data)
return dev->of_node == data;
}
static int kirin_drm_connectors_register(struct drm_device *dev)
{
struct drm_connector *connector;
struct drm_connector *failed_connector;
struct drm_connector_list_iter conn_iter;
int ret;
mutex_lock(&dev->mode_config.mutex);
drm_connector_list_iter_begin(dev, &conn_iter);
drm_for_each_connector_iter(connector, &conn_iter) {
ret = drm_connector_register(connector);
if (ret) {
failed_connector = connector;
goto err;
}
}
drm_connector_list_iter_end(&conn_iter);
mutex_unlock(&dev->mode_config.mutex);
return 0;
err:
drm_connector_list_iter_begin(dev, &conn_iter);
drm_for_each_connector_iter(connector, &conn_iter) {
if (failed_connector == connector)
break;
drm_connector_unregister(connector);
}
drm_connector_list_iter_end(&conn_iter);
mutex_unlock(&dev->mode_config.mutex);
return ret;
}
static int kirin_drm_bind(struct device *dev)
{
struct drm_device *drm_dev;
@ -117,8 +151,17 @@ static int kirin_drm_bind(struct device *dev)
drm_fbdev_generic_setup(drm_dev, 32);
/* connectors should be registered after drm device register */
if (driver_data->register_connects) {
ret = kirin_drm_connectors_register(drm_dev);
if (ret)
goto err_drm_dev_unregister;
}
return 0;
err_drm_dev_unregister:
drm_dev_unregister(drm_dev);
err_kms_cleanup:
kirin_drm_kms_cleanup(drm_dev);
err_drm_dev_put:

1
drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.h
View file

@ -39,6 +39,7 @@ struct kirin_drm_data {
u32 channel_formats_cnt;
int config_max_width;
int config_max_height;
bool register_connects;
u32 num_planes;
u32 prim_plane;