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drm/malidp: convert platform driver to use dev_groups

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Platform drivers now have the option to have the platform core create
and remove any needed sysfs attribute files.  So take advantage of that
and do not register "by hand" a sysfs file.

Cc: Liviu Dudau <liviu.dudau@arm.com>
Cc: Brian Starkey <brian.starkey@arm.com>
Cc: Mali DP Maintainers <malidp@foss.arm.com>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Tested-by: Liviu Dudau <liviu.dudau@arm.com>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200517193655.3895087-2-emil.l.velikov@gmail.com
This commit is contained in:
Emil Velikov 2020-05-17 20:36:54 +01:00
parent 0f53f2da43
commit 21d456a210
1 changed files with 6 additions and 21 deletions
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27
drivers/gpu/drm/arm/malidp_drv.c
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@ -657,20 +657,11 @@ static ssize_t core_id_show(struct device *dev, struct device_attribute *attr,
static DEVICE_ATTR_RO(core_id);
static int malidp_init_sysfs(struct device *dev)
{
int ret = device_create_file(dev, &dev_attr_core_id);
if (ret)
DRM_ERROR("failed to create device file for core_id\n");
return ret;
}
static void malidp_fini_sysfs(struct device *dev)
{
device_remove_file(dev, &dev_attr_core_id);
}
static struct attribute *mali_dp_attrs[] = {
&dev_attr_core_id.attr,
NULL,
};
ATTRIBUTE_GROUPS(mali_dp);
#define MAX_OUTPUT_CHANNELS 3
@ -832,10 +823,6 @@ static int malidp_bind(struct device *dev)
if (ret < 0)
goto query_hw_fail;
ret = malidp_init_sysfs(dev);
if (ret)
goto init_fail;
/* Set the CRTC's port so that the encoder component can find it */
malidp->crtc.port = of_graph_get_port_by_id(dev->of_node, 0);
@ -893,8 +880,6 @@ static int malidp_bind(struct device *dev)
bind_fail:
of_node_put(malidp->crtc.port);
malidp->crtc.port = NULL;
init_fail:
malidp_fini_sysfs(dev);
malidp_fini(drm);
query_hw_fail:
pm_runtime_put(dev);
@ -927,7 +912,6 @@ static void malidp_unbind(struct device *dev)
component_unbind_all(dev, drm);
of_node_put(malidp->crtc.port);
malidp->crtc.port = NULL;
malidp_fini_sysfs(dev);
malidp_fini(drm);
pm_runtime_put(dev);
if (pm_runtime_enabled(dev))
@ -1023,6 +1007,7 @@ static struct platform_driver malidp_platform_driver = {
.name = "mali-dp",
.pm = &malidp_pm_ops,
.of_match_table = malidp_drm_of_match,
.dev_groups = mali_dp_groups,
},
};