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OpenCloudOS-Kernel
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Wu Fengguang e0dac65ed4 drm/i915: pass ELD to HDMI/DP audio driver 
Add ELD support for Intel Eaglelake, IbexPeak/Ironlake,
SandyBridge/CougarPoint and IvyBridge/PantherPoint chips.

ELD (EDID-Like Data) describes to the HDMI/DP audio driver the audio
capabilities of the plugged monitor. It's built and passed to audio
driver in 2 steps:

(1) at get_modes time, parse EDID and save ELD to drm_connector.eld[]

(2) at mode_set time, write drm_connector.eld[] to the Transcoder's hw
    ELD buffer and set the ELD_valid bit to inform HDMI/DP audio driver

This patch is tested OK on G45/HDMI, IbexPeak/HDMI and IvyBridge/HDMI+DP.
Test scheme: plug in the HDMI/DP monitor, and run

        cat /proc/asound/card0/eld*

to check if the monitor name, HDMI/DP type, etc. show up correctly.

Minor imperfection: the GEN5_AUD_CNTL_ST/DIP_Port_Select field always
reads 0 (reserved). Without knowing the port number, I worked it around
by setting the ELD_valid bit for ALL the three ports. It's tested to not
be a problem, because the audio driver will find invalid ELD data and
hence rightfully abort, even when it sees the ELD_valid indicator.

Thanks to Zhenyu and Pierre-Louis for a lot of valuable help and testing.

CC: Zhao Yakui <yakui.zhao@intel.com>
CC: Wang Zhenyu <zhenyu.z.wang@intel.com>
CC: Jeremy Bush <contractfrombelow@gmail.com>
CC: Christopher White <c.white@pulseforce.com>
CC: Pierre-Louis Bossart <pierre-louis.bossart@intel.com>
CC: Paul Menzel <paulepanter@users.sourceforge.net>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
 		2011-09-21 14:52:41 -07:00
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accessibility
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acpi Merge branch 'battery' into release 2011-08-05 22:16:42 -04:00
amba
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ata drivers/ata/sata_dwc_460ex.c: add missing kfree 2011-08-18 23:58:11 -04:00
atm atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
auxdisplay
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base Merge branch 'for-linus' of git://opensource.wolfsonmicro.com/regmap 2011-09-08 16:47:52 -07:00
bcma bcma: add uevent to the bus, to autoload drivers 2011-08-22 14:21:41 -04:00
block Merge branch 'stable/for-jens' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen into for-linus 2011-08-09 20:43:26 +02:00
bluetooth Bluetooth: Add Toshiba laptops AR30XX device ID 2011-08-11 19:50:26 -03:00
cdrom drivers/cdrom/cdrom.c: relax check on dvd manufacturer value 2011-08-02 12:43:50 +02:00
char drivers/char/msm_smd_pkt.c: don't use IS_ERR() 2011-08-25 16:25:33 -07:00
clk ARM: Consolidate the clkdev header files 2011-07-19 18:09:45 +02:00
clocksource Merge branch 'common/core' into sh-latest 2011-08-08 16:33:54 +09:00
connector proc_fork_connector: a lockless ->real_parent usage is not safe 2011-07-28 18:26:32 -07:00
cpufreq Merge branch 'drm-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 2011-07-26 09:21:09 -07:00
cpuidle cpuidle: stop depending on pm_idle 2011-08-03 19:06:37 -04:00
crypto n2_crypto: Attach on Niagara-T3. 2011-07-28 01:30:07 -07:00
dca
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dio
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dma dmaengine/ste_dma40: fix memory leak due to prepared descriptors 2011-09-05 17:08:26 +05:30
edac i7core_edac: fixed typo in error count calculation 2011-08-18 14:07:15 -07:00
eisa eisa/pci_eisa.c: fix BUG introduced by 005bdad7b8 2011-08-04 06:32:51 -10:00
firewire Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 2011-08-27 09:32:08 -07:00
firmware firmware: fix google/gsmi.c build warning 2011-08-08 13:53:49 -07:00
gpio Merge branch 'gpio/next' of git://git.secretlab.ca/git/linux-2.6 2011-08-01 06:13:48 -10:00
gpu drm/i915: pass ELD to HDMI/DP audio driver 2011-09-21 14:52:41 -07:00
hid Merge branches 'upstream-fixes' and 'magicmouse' into for-linus 2011-09-07 13:53:17 +02:00
hwmon hwmon: (ucd9000/ucd9200) Optimize array walk 2011-09-06 08:56:07 -07:00
hwspinlock
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i2c i2c-tegra: fix possible race condition after tx 2011-09-07 00:13:40 +01:00
ide drivers/ide/cy82c693.c: Add missing pci_dev_put 2011-08-04 01:30:34 -07:00
idle
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ieee802154
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infiniband Merge branches 'ipoib' and 'iser' into for-next 2011-08-17 10:57:43 -07:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2011-08-24 09:19:03 -07:00
iommu iommu/amd: Don't take domain->lock recursivly 2011-09-02 14:19:50 +02:00
isdn Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2011-07-28 05:58:19 -07:00
leds drivers/leds/leds-bd2802.c: bd2802_unregister_led_classdev() should unregister all registered leds 2011-08-25 16:25:35 -07:00
lguest lguest: Fix in/out emulation 2011-07-22 14:39:51 +09:30
macintosh drivers: fix up various ->llseek() implementations 2011-07-20 20:47:58 -04:00
mca
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md md: Fix handling for devices from 2TB to 4TB in 0.90 metadata. 2011-09-10 17:21:28 +10:00
media [media] vp7045: fix buffer setup 2011-09-11 09:33:41 -03:00
memstick
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message Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2011-07-30 08:36:02 -10:00
mfd mfd: Fix mismatch in twl4030 mutex lock-unlock 2011-07-31 23:28:27 +02:00
misc Merge branch 'driver-core-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6 2011-08-26 13:05:09 -07:00
mmc mmc: sdhci-s3c: Fix mmc card I/O problem 2011-08-31 16:25:52 -04:00
mtd UBI: do not link debug messages when debugging is disabled 2011-08-19 19:02:27 +03:00
net NET: am79c961: fix race in link status code 2011-09-05 08:58:29 +01:00
nfc NFC: pn533: use after free in pn533_disconnect() 2011-07-26 16:27:24 -04:00
nubus
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of Revert "dt: add of_alias_scan and of_alias_get_id" 2011-08-04 11:26:24 +01:00
oprofile atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
parisc
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parport Merge branch 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6 2011-07-25 23:09:27 -07:00
pci PCI: Remove MRRS modification from MPS setting code 2011-09-09 19:49:58 -07:00
pcmcia Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6 2011-07-31 06:23:08 -10:00
platform acer-wmi: support Lenovo ideapad S205 wifi switch 2011-08-05 15:21:52 -04:00
pnp Merge 'akpm' patch series 2011-07-25 21:00:19 -07:00
power s3c-adc-battery: Fix compilation error due to missing header (module.h) 2011-08-19 21:01:46 +04:00
pps
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ps3
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ptp
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rapidio rapidio: fix use of non-compatible registers 2011-08-25 16:25:34 -07:00
regulator Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6 2011-08-01 14:05:46 -10:00
rtc Merge branch 'timers-fixes-for-linus' of git://tesla.tglx.de/git/linux-2.6-tip 2011-09-07 13:03:48 -07:00
s390 [S390] memory hotplug: only unassign assigned increments 2011-08-24 17:15:24 +02:00
sbus atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
scsi scsi: qla4xxx driver depends on NET 2011-09-10 17:31:31 -07:00
sfi
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sh Merge branch 'common/core' into sh-latest 2011-08-08 16:33:54 +09:00
sn
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spi spi/pl022: remove function cannot exit 2011-08-02 14:54:11 +01:00
ssb Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2011-07-25 13:56:39 -07:00
staging staging: tidspbridge: fix compilation on dsp clock functions 2011-08-24 14:35:26 -07:00
target target: Convert acl_node_lock to be IRQ-disabling 2011-08-22 19:28:36 +00:00
tc
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telephony
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thermal thermal: make THERMAL_HWMON implementation fully internal 2011-08-02 14:51:57 -04:00
tty Merge branch 'sh-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-3.x 2011-08-29 13:34:48 -07:00
uio Merge branch 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6 2011-07-25 23:06:24 -07:00
usb USB: ftdi_sio: add Calao reference board support 2011-08-25 09:44:50 -07:00
uwb uwb: Fix misspelling of neighbourhood in comment 2011-07-21 14:03:41 +02:00
vhost atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
video backlight: Declare backlight_types[] const 2011-09-10 14:00:02 -07:00
virt drivers/virt: add missing linux/interrupt.h to fsl_hypervisor.c 2011-07-22 09:24:39 -05:00
virtio virtio: expose for non-virtualization users too 2011-07-23 16:20:30 +09:30
vlynq
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w1 MAINTAINERS: Evgeniy has moved 2011-08-25 16:25:33 -07:00
watchdog watchdog: Cleanup WATCHDOG_CORE help text 2011-08-02 08:23:07 +00:00
xen xen: self-balloon needs module.h 2011-08-16 07:23:34 -07:00
zorro
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Kconfig Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2011-07-25 22:59:39 -07:00
Makefile Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2011-07-25 22:59:39 -07:00