forked from Minki/linux
e4d9e513de
For HSW/BDW display HD-A controller, hda_set_bclk() is defined to set BCLK by programming the M/N values as per the core display clock (CDCLK) queried from i915 display driver. And the audio driver will also set BCLK in azx_first_init() since the display driver can turn off the shared power in boot phase if only eDP is connected and M/N values will be lost and must be reprogrammed. Signed-off-by: Mengdong Lin <mengdong.lin@intel.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
38 lines
1.2 KiB
C
38 lines
1.2 KiB
C
/*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License as published by the Free
|
|
* Software Foundation; either version 2 of the License, or (at your option)
|
|
* any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along with
|
|
* this program; if not, write to the Free Software Foundation, Inc., 59
|
|
* Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
*/
|
|
#ifndef __SOUND_HDA_I915_H
|
|
#define __SOUND_HDA_I915_H
|
|
|
|
#ifdef CONFIG_SND_HDA_I915
|
|
int hda_display_power(bool enable);
|
|
void haswell_set_bclk(struct azx *chip);
|
|
int hda_i915_init(void);
|
|
int hda_i915_exit(void);
|
|
#else
|
|
static inline int hda_display_power(bool enable) { return 0; }
|
|
static inline void haswell_set_bclk(struct azx *chip) { return; }
|
|
static inline int hda_i915_init(void)
|
|
{
|
|
return -ENODEV;
|
|
}
|
|
static inline int hda_i915_exit(void)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#endif
|