d7055bd653
Register a component master to be used to interface with the i915 driver. This is meant to replace the current interface which is based on module symbol lookups. Note that currently we keep the existing behavior and pin the i915 module while the hda driver is loaded. Using the component interface allows us to remove this dependency once support for dynamically enabling / disabling the HDMI functionality is added to the driver. v2: - change roles between the hda and i915 components (Daniel) v3: - rename display_component to audio_component (Daniel) v4: - move removal of i915_powerwell.h from this patch to the next (Takashi) - request_module fails if module support isn't enabled, so ignore any error it returns and depend on the following NULL check of the component ops (Takashi) - change over to using dev_* instead of pr_* (Takashi) Signed-off-by: Imre Deak <imre.deak@intel.com> Reviewed-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
72 lines
2 KiB
C
72 lines
2 KiB
C
/*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc., 59
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* Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef __SOUND_HDA_INTEL_H
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#define __SOUND_HDA_INTEL_H
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#include <drm/i915_component.h>
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#include "hda_priv.h"
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struct hda_intel {
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struct azx chip;
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/* for pending irqs */
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struct work_struct irq_pending_work;
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/* sync probing */
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struct completion probe_wait;
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struct work_struct probe_work;
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/* card list (for power_save trigger) */
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struct list_head list;
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/* extra flags */
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unsigned int irq_pending_warned:1;
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/* VGA-switcheroo setup */
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unsigned int use_vga_switcheroo:1;
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unsigned int vga_switcheroo_registered:1;
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unsigned int init_failed:1; /* delayed init failed */
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/* secondary power domain for hdmi audio under vga device */
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struct dev_pm_domain hdmi_pm_domain;
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/* i915 component interface */
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struct i915_audio_component audio_component;
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};
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#ifdef CONFIG_SND_HDA_I915
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int hda_display_power(struct hda_intel *hda, bool enable);
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void haswell_set_bclk(struct hda_intel *hda);
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int hda_i915_init(struct hda_intel *hda);
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int hda_i915_exit(struct hda_intel *hda);
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#else
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static inline int hda_display_power(struct hda_intel *hda, bool enable)
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{
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return 0;
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}
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static inline void haswell_set_bclk(struct hda_intel *hda) { return; }
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static inline int hda_i915_init(struct hda_intel *hda)
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{
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return -ENODEV;
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}
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static inline int hda_i915_exit(struct hda_intel *hda)
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{
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return 0;
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}
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#endif
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#endif
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