diff options
| -rw-r--r-- | drivers/gpu/drm/panel/panel-edp.c | 159 |
1 files changed, 82 insertions, 77 deletions
diff --git a/drivers/gpu/drm/panel/panel-edp.c b/drivers/gpu/drm/panel/panel-edp.c index d7dc7117971c..ef1022a1c052 100644 --- a/drivers/gpu/drm/panel/panel-edp.c +++ b/drivers/gpu/drm/panel/panel-edp.c @@ -41,6 +41,87 @@ #include <drm/drm_panel.h> /** + * struct panel_delay - Describes delays for a simple panel. + */ +struct panel_delay { + /** + * @prepare: Time for the panel to become ready. + * + * The time (in milliseconds) that it takes for the panel to + * become ready and start receiving video data + */ + unsigned int prepare; + + /** + * @hpd_absent_delay: Time to wait if HPD isn't hooked up. + * + * Add this to the prepare delay if we know Hot Plug Detect + * isn't used. + */ + unsigned int hpd_absent_delay; + + /** + * @prepare_to_enable: Time between prepare and enable. + * + * The minimum time, in milliseconds, that needs to have passed + * between when prepare finished and enable may begin. If at + * enable time less time has passed since prepare finished, + * the driver waits for the remaining time. + * + * If a fixed enable delay is also specified, we'll start + * counting before delaying for the fixed delay. + * + * If a fixed prepare delay is also specified, we won't start + * counting until after the fixed delay. We can't overlap this + * fixed delay with the min time because the fixed delay + * doesn't happen at the end of the function if a HPD GPIO was + * specified. + * + * In other words: + * prepare() + * ... + * // do fixed prepare delay + * // wait for HPD GPIO if applicable + * // start counting for prepare_to_enable + * + * enable() + * // do fixed enable delay + * // enforce prepare_to_enable min time + */ + unsigned int prepare_to_enable; + + /** + * @enable: Time for the panel to display a valid frame. + * + * The time (in milliseconds) that it takes for the panel to + * display the first valid frame after starting to receive + * video data. + */ + unsigned int enable; + + /** + * @disable: Time for the panel to turn the display off. + * + * The time (in milliseconds) that it takes for the panel to + * turn the display off (no content is visible). + */ + unsigned int disable; + + /** + * @unprepare: Time to power down completely. + * + * The time (in milliseconds) that it takes for the panel + * to power itself down completely. + * + * This time is used to prevent a future "prepare" from + * starting until at least this many milliseconds has passed. + * If at prepare time less time has passed since unprepare + * finished, the driver waits for the remaining time. + */ + unsigned int unprepare; +}; + +/** * struct panel_desc - Describes a simple panel. */ struct panel_desc { @@ -84,83 +165,7 @@ struct panel_desc { } size; /** @delay: Structure containing various delay values for this panel. */ - struct { - /** - * @delay.prepare: Time for the panel to become ready. - * - * The time (in milliseconds) that it takes for the panel to - * become ready and start receiving video data - */ - unsigned int prepare; - - /** - * @delay.hpd_absent_delay: Time to wait if HPD isn't hooked up. - * - * Add this to the prepare delay if we know Hot Plug Detect - * isn't used. - */ - unsigned int hpd_absent_delay; - - /** - * @delay.prepare_to_enable: Time between prepare and enable. - * - * The minimum time, in milliseconds, that needs to have passed - * between when prepare finished and enable may begin. If at - * enable time less time has passed since prepare finished, - * the driver waits for the remaining time. - * - * If a fixed enable delay is also specified, we'll start - * counting before delaying for the fixed delay. - * - * If a fixed prepare delay is also specified, we won't start - * counting until after the fixed delay. We can't overlap this - * fixed delay with the min time because the fixed delay - * doesn't happen at the end of the function if a HPD GPIO was - * specified. - * - * In other words: - * prepare() - * ... - * // do fixed prepare delay - * // wait for HPD GPIO if applicable - * // start counting for prepare_to_enable - * - * enable() - * // do fixed enable delay - * // enforce prepare_to_enable min time - */ - unsigned int prepare_to_enable; - - /** - * @delay.enable: Time for the panel to display a valid frame. - * - * The time (in milliseconds) that it takes for the panel to - * display the first valid frame after starting to receive - * video data. - */ - unsigned int enable; - - /** - * @delay.disable: Time for the panel to turn the display off. - * - * The time (in milliseconds) that it takes for the panel to - * turn the display off (no content is visible). - */ - unsigned int disable; - - /** - * @delay.unprepare: Time to power down completely. - * - * The time (in milliseconds) that it takes for the panel - * to power itself down completely. - * - * This time is used to prevent a future "prepare" from - * starting until at least this many milliseconds has passed. - * If at prepare time less time has passed since unprepare - * finished, the driver waits for the remaining time. - */ - unsigned int unprepare; - } delay; + struct panel_delay delay; }; struct panel_edp { |