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Revert "drm: Introduce 'power saving policy' drm property"

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This reverts commit 76299a557f.

It was merged without meeting userspace requirements.

Signed-off-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240802145946.48073-1-hamza.mahfooz@amd.com
This commit is contained in:
Hamza Mahfooz 2024-08-02 10:59:45 -04:00
parent d97e71e449
commit b6b242d019
No known key found for this signature in database
GPG Key ID: 3D6797D6EE6FCAE2
4 changed files with 0 additions and 62 deletions
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48
drivers/gpu/drm/drm_connector.c
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@ -1043,11 +1043,6 @@ static const struct drm_prop_enum_list drm_scaling_mode_enum_list[] = {
{ DRM_MODE_SCALE_ASPECT, "Full aspect" },
};
static const struct drm_prop_enum_list drm_power_saving_policy_enum_list[] = {
{ __builtin_ffs(DRM_MODE_REQUIRE_COLOR_ACCURACY) - 1, "Require color accuracy" },
{ __builtin_ffs(DRM_MODE_REQUIRE_LOW_LATENCY) - 1, "Require low latency" },
};
static const struct drm_prop_enum_list drm_aspect_ratio_enum_list[] = {
{ DRM_MODE_PICTURE_ASPECT_NONE, "Automatic" },
{ DRM_MODE_PICTURE_ASPECT_4_3, "4:3" },
@ -1634,16 +1629,6 @@ EXPORT_SYMBOL(drm_hdmi_connector_get_output_format_name);
*
* Drivers can set up these properties by calling
* drm_mode_create_tv_margin_properties().
* power saving policy:
* This property is used to set the power saving policy for the connector.
* This property is populated with a bitmask of optional requirements set
* by the drm master for the drm driver to respect:
* - "Require color accuracy": Disable power saving features that will
* affect color fidelity.
* For example: Hardware assisted backlight modulation.
* - "Require low latency": Disable power saving features that will
* affect latency.
* For example: Panel self refresh (PSR)
*/
int drm_connector_create_standard_properties(struct drm_device *dev)
@ -2146,39 +2131,6 @@ int drm_mode_create_scaling_mode_property(struct drm_device *dev)
}
EXPORT_SYMBOL(drm_mode_create_scaling_mode_property);
/**
* drm_mode_create_power_saving_policy_property - create power saving policy property
* @dev: DRM device
* @supported_policies: bitmask of supported power saving policies
*
* Called by a driver the first time it's needed, must be attached to desired
* connectors.
*
* Returns: %0
*/
int drm_mode_create_power_saving_policy_property(struct drm_device *dev,
uint64_t supported_policies)
{
struct drm_property *power_saving;
if (dev->mode_config.power_saving_policy)
return 0;
WARN_ON((supported_policies & DRM_MODE_POWER_SAVING_POLICY_ALL) == 0);
power_saving =
drm_property_create_bitmask(dev, 0, "power saving policy",
drm_power_saving_policy_enum_list,
ARRAY_SIZE(drm_power_saving_policy_enum_list),
supported_policies);
if (!power_saving)
return -ENOMEM;
dev->mode_config.power_saving_policy = power_saving;
return 0;
}
EXPORT_SYMBOL(drm_mode_create_power_saving_policy_property);
/**
* DOC: Variable refresh properties
*

2
include/drm/drm_connector.h
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@ -2267,8 +2267,6 @@ int drm_mode_create_dp_colorspace_property(struct drm_connector *connector,
u32 supported_colorspaces);
int drm_mode_create_content_type_property(struct drm_device *dev);
int drm_mode_create_suggested_offset_properties(struct drm_device *dev);
int drm_mode_create_power_saving_policy_property(struct drm_device *dev,
uint64_t supported_policies);
int drm_connector_set_path_property(struct drm_connector *connector,
const char *path);

5
include/drm/drm_mode_config.h
View File

@ -969,11 +969,6 @@ struct drm_mode_config {
*/
struct drm_atomic_state *suspend_state;
/**
* @power_saving_policy: bitmask for power saving policy requests.
*/
struct drm_property *power_saving_policy;
const struct drm_mode_config_helper_funcs *helper_private;
};

7
include/uapi/drm/drm_mode.h
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@ -152,13 +152,6 @@ extern "C" {
#define DRM_MODE_SCALE_CENTER 2 /* Centered, no scaling */
#define DRM_MODE_SCALE_ASPECT 3 /* Full screen, preserve aspect */
/* power saving policy options */
#define DRM_MODE_REQUIRE_COLOR_ACCURACY BIT(0) /* Compositor requires color accuracy */
#define DRM_MODE_REQUIRE_LOW_LATENCY BIT(1) /* Compositor requires low latency */
#define DRM_MODE_POWER_SAVING_POLICY_ALL (DRM_MODE_REQUIRE_COLOR_ACCURACY |\
DRM_MODE_REQUIRE_LOW_LATENCY)
/* Dithering mode options */
#define DRM_MODE_DITHERING_OFF 0
#define DRM_MODE_DITHERING_ON 1