cf8fc4f10e
The power and clocks turns on always in exynos hdmi and mixer driver, but we should turn off the power and clocks of exynos hdmi and mixer when the hdmi cable unplugged or when hdmi unused. There are two interrupt to detect hotplug of hdmi cable - internal interrupt and external interrupt. The internal interrupt can use only when hdmi is dpms on so if hdmi is dpms off, we should use external interrupt to detect hotplug of hdmi cable. If hdmi is dpms on, we cannot external interrupt because the gpio pin for external interrupt is used to hdmi HPD pin for internal interrupt. Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
78 lines
2.6 KiB
C
78 lines
2.6 KiB
C
/* exynos_drm_hdmi.h
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*
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* Copyright (c) 2011 Samsung Electronics Co., Ltd.
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* Authoer: Inki Dae <inki.dae@samsung.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef _EXYNOS_DRM_HDMI_H_
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#define _EXYNOS_DRM_HDMI_H_
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#define MIXER_WIN_NR 3
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#define MIXER_DEFAULT_WIN 0
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/*
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* exynos hdmi common context structure.
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*
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* @drm_dev: pointer to drm_device.
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* @ctx: pointer to the context of specific device driver.
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* this context should be hdmi_context or mixer_context.
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*/
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struct exynos_drm_hdmi_context {
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struct drm_device *drm_dev;
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void *ctx;
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};
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struct exynos_hdmi_ops {
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/* display */
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bool (*is_connected)(void *ctx);
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int (*get_edid)(void *ctx, struct drm_connector *connector,
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u8 *edid, int len);
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int (*check_timing)(void *ctx, void *timing);
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int (*power_on)(void *ctx, int mode);
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/* manager */
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void (*mode_fixup)(void *ctx, struct drm_connector *connector,
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struct drm_display_mode *mode,
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struct drm_display_mode *adjusted_mode);
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void (*mode_set)(void *ctx, void *mode);
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void (*get_max_resol)(void *ctx, unsigned int *width,
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unsigned int *height);
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void (*commit)(void *ctx);
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void (*dpms)(void *ctx, int mode);
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};
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struct exynos_mixer_ops {
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/* manager */
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int (*enable_vblank)(void *ctx, int pipe);
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void (*disable_vblank)(void *ctx);
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void (*dpms)(void *ctx, int mode);
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/* overlay */
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void (*win_mode_set)(void *ctx, struct exynos_drm_overlay *overlay);
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void (*win_commit)(void *ctx, int zpos);
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void (*win_disable)(void *ctx, int zpos);
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};
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void exynos_hdmi_ops_register(struct exynos_hdmi_ops *ops);
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void exynos_mixer_ops_register(struct exynos_mixer_ops *ops);
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#endif
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