Message-ID: <20240222204450.7943-1-ndevos-dev@pm.me>
Date: Thu, 22 Feb 2024 20:46:09 +0000
From: Nicolas <ndevos-dev@...me>
To: Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>, dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Cc: Nicolas <ndevos-dev@...me>
Subject: [PATCH] gpu/drm: Fix several checkpatch warnings

This commit includes several checkpatch for drm_connector.c:
- SPDX license
- Spaces before tabs
- Unnecessary brackets
- unsigned int is preferred over unsigned
---
 drivers/gpu/drm/drm_connector.c | 142 ++++++++++++++++----------------
 1 file changed, 71 insertions(+), 71 deletions(-)

diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
index b0516505f7ae..4e6c910e339b 100644
--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0 or MIT
 /*
  * Copyright (c) 2016 Intel Corporation
  *
@@ -313,9 +314,8 @@ static int __drm_connector_init(struct drm_device *dev,
 				   config->tile_property,
 				   0);
 
-	if (drm_core_check_feature(dev, DRIVER_ATOMIC)) {
+	if (drm_core_check_feature(dev, DRIVER_ATOMIC))
 		drm_object_attach_property(&connector->base, config->prop_crtc_id, 0);
-	}
 
 	connector->debugfs_entry = NULL;
 out_put_type_id:
@@ -1150,70 +1150,70 @@ static const u32 dp_colorspaces =
  * DRM connectors have a few standardized properties:
  *
  * EDID:
- * 	Blob property which contains the current EDID read from the sink. This
- * 	is useful to parse sink identification information like vendor, model
- * 	and serial. Drivers should update this property by calling
- * 	drm_connector_update_edid_property(), usually after having parsed
- * 	the EDID using drm_add_edid_modes(). Userspace cannot change this
- * 	property.
- *
- * 	User-space should not parse the EDID to obtain information exposed via
- * 	other KMS properties (because the kernel might apply limits, quirks or
- * 	fixups to the EDID). For instance, user-space should not try to parse
- * 	mode lists from the EDID.
+ *	Blob property which contains the current EDID read from the sink. This
+ *	is useful to parse sink identification information like vendor, model
+ *	and serial. Drivers should update this property by calling
+ *	drm_connector_update_edid_property(), usually after having parsed
+ *	the EDID using drm_add_edid_modes(). Userspace cannot change this
+ *	property.
+ *
+ *	User-space should not parse the EDID to obtain information exposed via
+ *	other KMS properties (because the kernel might apply limits, quirks or
+ *	fixups to the EDID). For instance, user-space should not try to parse
+ *	mode lists from the EDID.
  * DPMS:
- * 	Legacy property for setting the power state of the connector. For atomic
- * 	drivers this is only provided for backwards compatibility with existing
- * 	drivers, it remaps to controlling the "ACTIVE" property on the CRTC the
- * 	connector is linked to. Drivers should never set this property directly,
- * 	it is handled by the DRM core by calling the &drm_connector_funcs.dpms
- * 	callback. For atomic drivers the remapping to the "ACTIVE" property is
- * 	implemented in the DRM core.
- *
- * 	Note that this property cannot be set through the MODE_ATOMIC ioctl,
- * 	userspace must use "ACTIVE" on the CRTC instead.
- *
- * 	WARNING:
- *
- * 	For userspace also running on legacy drivers the "DPMS" semantics are a
- * 	lot more complicated. First, userspace cannot rely on the "DPMS" value
- * 	returned by the GETCONNECTOR actually reflecting reality, because many
- * 	drivers fail to update it. For atomic drivers this is taken care of in
- * 	drm_atomic_helper_update_legacy_modeset_state().
- *
- * 	The second issue is that the DPMS state is only well-defined when the
- * 	connector is connected to a CRTC. In atomic the DRM core enforces that
- * 	"ACTIVE" is off in such a case, no such checks exists for "DPMS".
- *
- * 	Finally, when enabling an output using the legacy SETCONFIG ioctl then
- * 	"DPMS" is forced to ON. But see above, that might not be reflected in
- * 	the software value on legacy drivers.
- *
- * 	Summarizing: Only set "DPMS" when the connector is known to be enabled,
- * 	assume that a successful SETCONFIG call also sets "DPMS" to on, and
- * 	never read back the value of "DPMS" because it can be incorrect.
+ *	Legacy property for setting the power state of the connector. For atomic
+ *	drivers this is only provided for backwards compatibility with existing
+ *	drivers, it remaps to controlling the "ACTIVE" property on the CRTC the
+ *	connector is linked to. Drivers should never set this property directly,
+ *	it is handled by the DRM core by calling the &drm_connector_funcs.dpms
+ *	callback. For atomic drivers the remapping to the "ACTIVE" property is
+ *	implemented in the DRM core.
+ *
+ *	Note that this property cannot be set through the MODE_ATOMIC ioctl,
+ *	userspace must use "ACTIVE" on the CRTC instead.
+ *
+ *	WARNING:
+ *
+ *	For userspace also running on legacy drivers the "DPMS" semantics are a
+ *	lot more complicated. First, userspace cannot rely on the "DPMS" value
+ *	returned by the GETCONNECTOR actually reflecting reality, because many
+ *	drivers fail to update it. For atomic drivers this is taken care of in
+ *	drm_atomic_helper_update_legacy_modeset_state().
+ *
+ *	The second issue is that the DPMS state is only well-defined when the
+ *	connector is connected to a CRTC. In atomic the DRM core enforces that
+ *	"ACTIVE" is off in such a case, no such checks exists for "DPMS".
+ *
+ *	Finally, when enabling an output using the legacy SETCONFIG ioctl then
+ *	"DPMS" is forced to ON. But see above, that might not be reflected in
+ *	the software value on legacy drivers.
+ *
+ *	Summarizing: Only set "DPMS" when the connector is known to be enabled,
+ *	assume that a successful SETCONFIG call also sets "DPMS" to on, and
+ *	never read back the value of "DPMS" because it can be incorrect.
  * PATH:
- * 	Connector path property to identify how this sink is physically
- * 	connected. Used by DP MST. This should be set by calling
- * 	drm_connector_set_path_property(), in the case of DP MST with the
- * 	path property the MST manager created. Userspace cannot change this
- * 	property.
- *
- * 	In the case of DP MST, the property has the format
- * 	``mst:<parent>-<ports>`` where ``<parent>`` is the KMS object ID of the
- * 	parent connector and ``<ports>`` is a hyphen-separated list of DP MST
- * 	port numbers. Note, KMS object IDs are not guaranteed to be stable
- * 	across reboots.
+ *	Connector path property to identify how this sink is physically
+ *	connected. Used by DP MST. This should be set by calling
+ *	drm_connector_set_path_property(), in the case of DP MST with the
+ *	path property the MST manager created. Userspace cannot change this
+ *	property.
+ *
+ *	In the case of DP MST, the property has the format
+ *	``mst:<parent>-<ports>`` where ``<parent>`` is the KMS object ID of the
+ *	parent connector and ``<ports>`` is a hyphen-separated list of DP MST
+ *	port numbers. Note, KMS object IDs are not guaranteed to be stable
+ *	across reboots.
  * TILE:
- * 	Connector tile group property to indicate how a set of DRM connector
- * 	compose together into one logical screen. This is used by both high-res
- * 	external screens (often only using a single cable, but exposing multiple
- * 	DP MST sinks), or high-res integrated panels (like dual-link DSI) which
- * 	are not gen-locked. Note that for tiled panels which are genlocked, like
- * 	dual-link LVDS or dual-link DSI, the driver should try to not expose the
- * 	tiling and virtualise both &drm_crtc and &drm_plane if needed. Drivers
- * 	should update this value using drm_connector_set_tile_property().
- * 	Userspace cannot change this property.
+ *	Connector tile group property to indicate how a set of DRM connector
+ *	compose together into one logical screen. This is used by both high-res
+ *	external screens (often only using a single cable, but exposing multiple
+ *	DP MST sinks), or high-res integrated panels (like dual-link DSI) which
+ *	are not gen-locked. Note that for tiled panels which are genlocked, like
+ *	dual-link LVDS or dual-link DSI, the driver should try to not expose the
+ *	tiling and virtualise both &drm_crtc and &drm_plane if needed. Drivers
+ *	should update this value using drm_connector_set_tile_property().
+ *	Userspace cannot change this property.
  * link-status:
  *      Connector link-status property to indicate the status of link. The
  *      default value of link-status is "GOOD". If something fails during or
@@ -1247,9 +1247,9 @@ static const u32 dp_colorspaces =
  *      to how it might fail if a different screen has been connected in the
  *      interim.
  * non_desktop:
- * 	Indicates the output should be ignored for purposes of displaying a
- * 	standard desktop environment or console. This is most likely because
- * 	the output device is not rectilinear.
+ *	Indicates the output should be ignored for purposes of displaying a
+ *	standard desktop environment or console. This is most likely because
+ *	the output device is not rectilinear.
  * Content Protection:
  *	This property is used by userspace to request the kernel protect future
  *	content communicated over the link. When requested, kernel will apply
@@ -1399,7 +1399,7 @@ static const u32 dp_colorspaces =
  * Connectors also have one standardized atomic property:
  *
  * CRTC_ID:
- * 	Mode object ID of the &drm_crtc this connector should be connected to.
+ *	Mode object ID of the &drm_crtc this connector should be connected to.
  *
  * Connectors for LCD panels may also have one standardized property:
  *
@@ -1721,7 +1721,7 @@ EXPORT_SYMBOL(drm_connector_attach_content_type_property);
 
 /**
  * drm_connector_attach_tv_margin_properties - attach TV connector margin
- * 	properties
+ *	properties
  * @connector: DRM connector
  *
  * Called by a driver when it needs to attach TV margin props to a connector.
@@ -2076,7 +2076,7 @@ int drm_connector_attach_scaling_mode_property(struct drm_connector *connector,
 	struct drm_device *dev = connector->dev;
 	struct drm_property *scaling_mode_property;
 	int i;
-	const unsigned valid_scaling_mode_mask =
+	const unsigned int valid_scaling_mode_mask =
 		(1U << ARRAY_SIZE(drm_scaling_mode_enum_list)) - 1;
 
 	if (WARN_ON(hweight32(scaling_mode_mask) < 2 ||
@@ -2817,9 +2817,9 @@ int drm_connector_set_obj_prop(struct drm_mode_object *obj,
 	struct drm_connector *connector = obj_to_connector(obj);
 
 	/* Do DPMS ourselves */
-	if (property == connector->dev->mode_config.dpms_property) {
+	if (property == connector->dev->mode_config.dpms_property)
 		ret = (*connector->funcs->dpms)(connector, (int)value);
-	} else if (connector->funcs->set_property)
+	else if (connector->funcs->set_property)
 		ret = connector->funcs->set_property(connector, property, value);
 
 	if (!ret)
-- 
2.42.0

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