linux_dsm_epyc7002/include
Pandiyan, Dhinakaran f931894194 drm/i915/dp: DP audio API changes for MST
DP MST provides the capability to send multiple video and audio streams
through a single port. This requires the API's between i915 and audio
drivers to distinguish between multiple audio capable displays that can be
connected to a port. Currently only the port identity is shared in the
APIs. This patch adds support for MST with an additional parameter
'int pipe'. The existing parameter 'port' does not change it's meaning.

pipe =
	MST	: display pipe that the stream originates from
	Non-MST	: -1

Affected APIs:
struct i915_audio_component_ops
-       int (*sync_audio_rate)(struct device *, int port, int rate);
+	int (*sync_audio_rate)(struct device *, int port, int pipe,
+	     int rate);

-       int (*get_eld)(struct device *, int port, bool *enabled,
-                       unsigned char *buf, int max_bytes);
+       int (*get_eld)(struct device *, int port, int pipe,
+		       bool *enabled, unsigned char *buf, int max_bytes);

struct i915_audio_component_audio_ops
-       void (*pin_eld_notify)(void *audio_ptr, int port);
+       void (*pin_eld_notify)(void *audio_ptr, int port, int pipe);

This patch makes dummy changes in the audio drivers (thanks Libin) for
build to succeed. The audio side drivers will send the right 'pipe' values
for MST in patches that will follow.

v2:
Renamed the new API parameter from 'dev_id' to 'pipe'. (Jim, Ville)
Included Asoc driver API compatibility changes from Jeeja.
Added WARN_ON() for invalid pipe in get_saved_encoder(). (Takashi)
Added comment for av_enc_map[] definition. (Takashi)

v3:
Fixed logic error introduced while renaming 'dev_id' as 'pipe' (Ville)
Renamed get_saved_encoder() to get_saved_enc() to reduce line length

v4:
Rebased.
Parameter check for pipe < -1 values in get_saved_enc() (Ville)
Switched to for_each_pipe() in get_saved_enc() (Ville)
Renamed 'pipe' to 'dev_id' in audio side code (Takashi)

v5:
Included a comment for the dev_id arg. (Libin)

Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1474488168-2343-1-git-send-email-dhinakaran.pandiyan@intel.com
2016-09-22 09:01:55 -07:00
..
acpi treewide: replace obsolete _refok by __ref 2016-08-02 17:31:41 -04:00
asm-generic locking/qrwlock: Fix write unlock bug on big endian systems 2016-08-10 14:13:27 +02:00
clocksource
crypto A number of improvements for the /dev/random driver; the most 2016-07-27 15:11:55 -07:00
drm drm/i915/dp: DP audio API changes for MST 2016-09-22 09:01:55 -07:00
dt-bindings ARM: DT updates for v4.8 2016-08-01 18:37:45 -04:00
keys
kvm KVM/ARM Changes for v4.8 - Take 2 2016-08-04 13:59:56 +02:00
linux io-mapping: Fixup for different names of writecombine 2016-08-24 09:41:14 +02:00
math-emu
media dma-mapping: use unsigned long for dma_attrs 2016-08-04 08:50:07 -04:00
memory
misc cxl: Add cxl_check_and_switch_mode() API to switch bi-modal cards 2016-07-14 20:28:11 +10:00
net virtio/vhost: new features for 4.8 2016-08-06 09:20:13 -04:00
pcmcia
ras tracing, RAS: Cleanup on __get_str() usage 2016-07-15 15:51:16 -04:00
rdma Second round of merge items for 4.8 2016-08-04 20:26:31 -04:00
rxrpc
scsi Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2016-08-04 20:04:37 -04:00
soc ARM: SoC driver updates for v4.8 2016-08-01 18:36:01 -04:00
sound drm/i915/dp: DP audio API changes for MST 2016-09-22 09:01:55 -07:00
target target: Fix ordered task CHECK_CONDITION early exception handling 2016-07-20 00:58:40 -07:00
trace Luiz Capitulino noticed that the tick_stop tracepoint wasn't being parsed 2016-08-09 10:34:09 -07:00
uapi drm/i915: Add I915_PARAM_MMAP_GTT_VERSION to advertise unlimited mmaps 2016-08-26 08:42:26 +01:00
video gpu: ipu-v3: Add missing IDMAC channel names 2016-08-08 11:44:20 +02:00
xen dma-mapping: use unsigned long for dma_attrs 2016-08-04 08:50:07 -04:00
Kbuild