Subject: Re: linux-next: manual merge of the drm-misc tree with Linus' tree

From: Stephen Rothwell <[email-masked]>
Date: Fri, 23 Mar 2018 11:45:48 +1100

Hi all,

On Thu, 15 Mar 2018 14:14:25 +1100 Stephen Rothwell <[email-masked]> wrote:
>
> Today's linux-next merge of the drm-misc tree got a conflict in:
> 
>   sound/pci/hda/hda_intel.c
> 
> between commits:
> 
>   1ba8f9d30817 ("ALSA: hda: Add a power_save blacklist")
>   40088dc4e1ea ("ALSA: hda - Revert power_save option default value")
> 
> from Linus' tree and commit:
> 
>   07f4f97d7b4b ("vga_switcheroo: Use device link for HDA controller")
> 
> from the drm-misc tree.
> 
> I fixed it up (see below) and can carry the fix as necessary. This
> is now fixed as far as linux-next is concerned, but any non trivial
> conflicts should be mentioned to your upstream maintainer when your tree
> is submitted for merging.  You may also want to consider cooperating
> with the maintainer of the conflicting tree to minimise any particularly
> complex conflicts.
> 
> -- 
> Cheers,
> Stephen Rothwell
> 
> diff --cc sound/pci/hda/hda_intel.c
> index d5017adf9feb,ec4e6b829ee2..000000000000
> --- a/sound/pci/hda/hda_intel.c
> +++ b/sound/pci/hda/hda_intel.c
> @@@ -2219,8 -2201,8 +2223,9 @@@ static int azx_probe_continue(struct az
>   	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
>   	struct hdac_bus *bus = azx_bus(chip);
>   	struct pci_dev *pci = chip->pci;
> + 	struct hda_codec *codec;
>   	int dev = chip->dev_index;
>  +	int val;
>   	int err;
>   
>   	hda->probe_continued = 1;
> @@@ -2302,21 -2284,16 +2307,30 @@@
>   	chip->running = 1;
>   	azx_add_card_list(chip);
>   
>  +	val = power_save;
>  +#ifdef CONFIG_PM
>  +	if (pm_blacklist) {
>  +		const struct snd_pci_quirk *q;
>  +
>  +		q = snd_pci_quirk_lookup(chip->pci, power_save_blacklist);
>  +		if (q && val) {
>  +			dev_info(chip->card->dev, "device %04x:%04x is on the power_save blacklist, forcing power_save to 0\n",
>  +				 q->subvendor, q->subdevice);
>  +			val = 0;
>  +		}
>  +	}
>  +#endif /* CONFIG_PM */
> ++
> + 	/*
> + 	 * The discrete GPU cannot power down unless the HDA controller runtime
> + 	 * suspends, so activate runtime PM on codecs even if power_save == 0.
> + 	 */
> + 	if (use_vga_switcheroo(hda))
> + 		list_for_each_codec(codec, &chip->bus)
> + 			codec->auto_runtime_pm = 1;
> + 
>  -	snd_hda_set_power_save(&chip->bus, power_save * 1000);
>  +	snd_hda_set_power_save(&chip->bus, val * 1000);
> - 	if (azx_has_pm_runtime(chip) || hda->use_vga_switcheroo)
> + 	if (azx_has_pm_runtime(chip))
>   		pm_runtime_put_autosuspend(&pci->dev);
>   
>   out_free:

This is now a conflict between the drm tree and Linus' tree.

-- 
Cheers,
Stephen Rothwell
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