Re: [PATCH v3 3/3] ALSA: hda: add support for Huawei WMI micmute LED

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On Fri, 09 Nov 2018 14:20:47 +0100,
Ayman Bagabas wrote:
> 
> [1  <text/plain; UTF-8 (7bit)>]
> 
> On Fri, Nov 9, 2018, 4:01 AM Takashi Iwai <tiwai@xxxxxxx wrote:
> 
>     On Thu, 08 Nov 2018 18:16:55 +0100,
>     Ayman Bagabas wrote:
>     >
>     > diff --git a/drivers/platform/x86/huawei_wmi.c b/drivers/platform/x86/
>     huawei_wmi.c
>     > index 658c44ab2126..f06aa967c311 100644
>     > --- a/drivers/platform/x86/huawei_wmi.c
>     > +++ b/drivers/platform/x86/huawei_wmi.c
>     > @@ -23,6 +23,7 @@
>     >  #include <linux/input.h>
>     >  #include <linux/input/sparse-keymap.h>
> 
>     >  #include <linux/module.h>
>     > +#include <linux/platform_data/x86/huawei_wmi.h>
>     > 
>     >  MODULE_AUTHOR("Ayman Bagabas <ayman.bagabas@xxxxxxxxx>");
>     >  MODULE_DESCRIPTION("Huawei WMI hotkeys");
>     > diff --git a/include/linux/platform_data/x86/huawei_wmi.h b/include/
>     linux/platform_data/x86/huawei_wmi.h
>     > new file mode 100644
>     > index 000000000000..dd251780ee5c
>     > --- /dev/null
>     > +++ b/include/linux/platform_data/x86/huawei_wmi.h
>     > @@ -0,0 +1,9 @@
>     > +/* SPDX-License-Identifier: GPL-2.0 */
>     > +#if IS_ENABLED(CONFIG_HUAWEI_LAPTOP)
>     > +#ifndef __HUAWEI_WMI_H__
>     > +#define __HUAWEI_WMI_H__
>     > +
>     > +int huawei_wmi_micmute_led_set(bool on);
>     > +
>     > +#endif
>     > +#endif
>    
>     These changes should belong to the WMI patch.
>    
>     > @@ -5765,6 +5769,10 @@ static const struct hda_fixup alc269_fixups[] = {
>     >               .chained = true,
>     >               .chain_id = ALC269_FIXUP_HEADSET_MIC
>     >       },
>     > +     [ALC256_FIXUP_HUAWEI_WMI_MICMUTE_LED] = {
>     > +             .type = HDA_FIXUP_FUNC,
>     > +             .v.func = alc_fixup_huawei_wmi
>     > +     },
>     >       [ALC256_FIXUP_HUAWEI_MBXP_PINS] = {
>     >               .type = HDA_FIXUP_PINS,
>     >               .v.pins = (const struct hda_pintbl[]) {
>     > @@ -5779,7 +5787,9 @@ static const struct hda_fixup alc269_fixups[] = {
>     >                       {0x1e, 0x411111f0},
>     >                       {0x21, 0x04211020},
>     >                       { }
>     > -             }
>     > +             },
>     > +             .chained = true,
>     > +             .chain_id = ALC256_FIXUP_HUAWEI_WMI_MICMUTE_LED
>     >       },
>     >       [ALC269_FIXUP_ASUS_X101_FUNC] = {
>     >               .type = HDA_FIXUP_FUNC,
>    
>     This means that ALC256_FIXUP_HUAWEI_MBXP_PINS performs both the pin
>     config fixup and the mic-mute LED enablement.
>    
>     > @@ -6609,6 +6619,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl
>     [] = {
>     >       SND_PCI_QUIRK(0x17aa, 0x5109, "Thinkpad",
>     ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
>     >       SND_PCI_QUIRK(0x17aa, 0x511e, "Thinkpad",
>     ALC298_FIXUP_TPT470_DOCK),
>     >       SND_PCI_QUIRK(0x17aa, 0x511f, "Thinkpad",
>     ALC298_FIXUP_TPT470_DOCK),
>     > +     SND_PCI_QUIRK(0x19e5, 0x3200, "Huawei MBX",
>     ALC256_FIXUP_HUAWEI_WMI_MICMUTE_LED),
>     >       SND_PCI_QUIRK(0x19e5, 0x3204, "Huawei MBXP",
>     ALC256_FIXUP_HUAWEI_MBXP_PINS),
>     >       SND_PCI_QUIRK(0x17aa, 0x3bf8, "Quanta FL1", ALC269_FIXUP_PCM_44K),
>     >       SND_PCI_QUIRK(0x17aa, 0x9e54, "LENOVO NB",
>     ALC269_FIXUP_LENOVO_EAPD),
>    
>     ... and yet you add a new entry for performing only mic-mute LED.
>     I guess the chaining is done wrongly above?
> 
> They are suppose to be two different devices. MBXP should apply both, but the
> MBX should only perform the LED.

Then please write it the changelog.  Otherwise readers have no idea
whether it's an intentional change or an oversight.


thanks,

Takashi
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