Re: imac27 12,2 (2011) model for patch_cirrus.c

["Jérémy Lal" <kapouer@melix.org>]

On 09/01/2012 14:58, Takashi Iwai wrote:
> At Mon, 09 Jan 2012 14:53:10 +0100,
> Jérémy Lal wrote:
>>
>> On 09/01/2012 11:34, Takashi Iwai wrote:
>>> At Thu, 29 Dec 2011 13:00:01 +0100,
>>> Jérémy Lal wrote:
>>>>
>>>> Hi,
>>>> it'd be glad to have patch_cirrus.c recognize model=imac27_122,
>>>> (i'm adding a model because it's harder to auto-detect it),
>>>> please find attached patch, tested on linux 3.2-rc7.
>>>> I don't know anything about pin configs, just that it works with
>>>> the ones in the patch.
>>>> Note that i tried with model=auto (no sound) and model=imac27 (front speakers
>>>> not muted when headphones are plugged in, and surround speakers not properly
>>>> detected).
>>>
>>> Thanks for the patch.  But I see a problem in the code, i.e.
>>>
>>>> +static const struct cs_pincfg imac27_122_pincfgs[] = {
>>>> +	{ 0x00, 0x821c9700 },
>>>> +	{ 0x01, 0x011d9700 },
>>> (snip)
>>>> +	{ 0x27, 0x401f5701 },
>>>> +	{} /* terminator */
>>>> +};
>>>
>>> This looks obviously wrong.  The pincfg table should contain only the
>>> default pin-configuration values for pin widgets while you are setting
>>> some values to all widgets.  Please minimize this entry.
>>
>> It's working without overriding pin-configurations :)
>> I tested almost everything except digital input/output.
>>
>> A kernel with the following patch and
>> options snd-hda-intel model=imac27_122
>> is enough to get sound working.
> 
> OK, that's much better.
> Could you give the patch with a proper changelog and your sign-off
> so that I can merge it now?

ALSA: hda/cirrus - support for iMac12,1 and 12,2 models

Those models just need to have headphones on GPI02
instead of GPI01, and use BIOS pincfgs.

Signed-off-by: Jérémy Lal <kapouer@melix.org>
---

--- linux-source-3.2-rc7.orig/sound/pci/hda/patch_cirrus.c	2011-12-24 06:51:06.000000000 +0100
+++ linux-source-3.2-rc7/sound/pci/hda/patch_cirrus.c	2012-01-09 12:40:53.026430475 +0100
@@ -78,6 +78,7 @@
 	CS420X_MBP53,
 	CS420X_MBP55,
 	CS420X_IMAC27,
+	CS420X_IMAC27_122,
 	CS420X_APPLE,
 	CS420X_AUTO,
 	CS420X_MODELS
@@ -1278,6 +1279,7 @@
 	[CS420X_MBP53] = "mbp53",
 	[CS420X_MBP55] = "mbp55",
 	[CS420X_IMAC27] = "imac27",
+	[CS420X_IMAC27_122] = "imac27_122",
 	[CS420X_APPLE] = "apple",
 	[CS420X_AUTO] = "auto",
 };
@@ -1392,6 +1394,12 @@
 		spec->gpio_eapd_speaker = 8; /* GPIO3 = speakers */
 		spec->gpio_mask = spec->gpio_dir =
 			spec->gpio_eapd_hp | spec->gpio_eapd_speaker;
+		break;
+	case CS420X_IMAC27_122:
+		spec->gpio_eapd_hp = 4; /* GPIO2 = headphones */
+		spec->gpio_eapd_speaker = 8; /* GPIO3 = speakers */
+		spec->gpio_mask = spec->gpio_dir =
+			spec->gpio_eapd_hp | spec->gpio_eapd_speaker;
 		break;
 	}
 

 
> Also, I guess your device should be identified via PCI SSID.
> Could you check whether the device has a unique PCI SSID (check lspci
> output), and add the corresponding entry to cs420x_cfg_tbl[]?  If it's
> about 10de:xxxx, it should be unique.  If it's 8086:xxxx, then we'd
> need to check the codec SSID instead of PCI SSID.

The PCI SSID is 8086:1c20
How can i get the codec SSID ?

Jérémy.


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