From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 28 Sep 2009 11:14:04 +0000 (+0200)
Subject: ALSA: hda - Enable MSI as default
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=71623855e20c3febebb5fa60528cde2592678bd5;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

ALSA: hda - Enable MSI as default

Since the recent kernel can handle MSI properly on non-Intel platforms,
let's enable MSI as default.

If any borken device is found, we can add the quirk entry to the list,
which is currently empty.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---

diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index c9ad182e1b4b..d0effa3563e2 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -60,7 +60,7 @@ static int bdl_pos_adj[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
 static int probe_mask[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
 static int probe_only[SNDRV_CARDS];
 static int single_cmd;
-static int enable_msi;
+static int enable_msi = -1;
 #ifdef CONFIG_SND_HDA_PATCH_LOADER
 static char *patch[SNDRV_CARDS];
 #endif
@@ -2300,11 +2300,9 @@ static void __devinit check_probe_mask(struct azx *chip, int dev)
 }
 
 /*
- * white-list for enable_msi
+ * white/black-list for enable_msi
  */
-static struct snd_pci_quirk msi_white_list[] __devinitdata = {
-	SND_PCI_QUIRK(0x103c, 0x30f7, "HP Pavilion dv4t-1300", 1),
-	SND_PCI_QUIRK(0x103c, 0x3607, "HP Compa CQ40", 1),
+static struct snd_pci_quirk msi_black_list[] __devinitdata = {
 	{}
 };
 
@@ -2312,10 +2310,12 @@ static void __devinit check_msi(struct azx *chip)
 {
 	const struct snd_pci_quirk *q;
 
-	chip->msi = enable_msi;
-	if (chip->msi)
+	if (enable_msi >= 0) {
+		chip->msi = !!enable_msi;
 		return;
-	q = snd_pci_quirk_lookup(chip->pci, msi_white_list);
+	}
+	chip->msi = 1;	/* enable MSI as default */
+	q = snd_pci_quirk_lookup(chip->pci, msi_black_list);
 	if (q) {
 		printk(KERN_INFO
 		       "hda_intel: msi for device %04x:%04x set to %d\n",