Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/sound/usb/format.c b/sound/usb/format.c
index fd13ac1..d79db71 100644
--- a/sound/usb/format.c
+++ b/sound/usb/format.c
@@ -1,18 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
*/
#include <linux/init.h>
@@ -87,6 +74,8 @@
}
}
+ fp->fmt_bits = sample_width;
+
if ((pcm_formats == 0) &&
(format == 0 || format == (1 << UAC_FORMAT_TYPE_I_UNDEFINED))) {
/* some devices don't define this correctly... */
@@ -296,6 +285,33 @@
return nr_rates;
}
+/* Line6 Helix series don't support the UAC2_CS_RANGE usb function
+ * call. Return a static table of known clock rates.
+ */
+static int line6_parse_audio_format_rates_quirk(struct snd_usb_audio *chip,
+ struct audioformat *fp)
+{
+ switch (chip->usb_id) {
+ case USB_ID(0x0E41, 0x4241): /* Line6 Helix */
+ case USB_ID(0x0E41, 0x4242): /* Line6 Helix Rack */
+ case USB_ID(0x0E41, 0x4244): /* Line6 Helix LT */
+ case USB_ID(0x0E41, 0x4246): /* Line6 HX-Stomp */
+ /* supported rates: 48Khz */
+ kfree(fp->rate_table);
+ fp->rate_table = kmalloc(sizeof(int), GFP_KERNEL);
+ if (!fp->rate_table)
+ return -ENOMEM;
+ fp->nr_rates = 1;
+ fp->rate_min = 48000;
+ fp->rate_max = 48000;
+ fp->rates = SNDRV_PCM_RATE_48000;
+ fp->rate_table[0] = 48000;
+ return 0;
+ }
+
+ return -ENODEV;
+}
+
/*
* parse the format descriptor and stores the possible sample rates
* on the audioformat table (audio class v2 and v3).
@@ -305,7 +321,7 @@
{
struct usb_device *dev = chip->dev;
unsigned char tmp[2], *data;
- int nr_triplets, data_size, ret = 0;
+ int nr_triplets, data_size, ret = 0, ret_l6;
int clock = snd_usb_clock_find_source(chip, fp->protocol,
fp->clock, false);
@@ -324,9 +340,22 @@
tmp, sizeof(tmp));
if (ret < 0) {
- dev_err(&dev->dev,
- "%s(): unable to retrieve number of sample rates (clock %d)\n",
+ /* line6 helix devices don't support UAC2_CS_CONTROL_SAM_FREQ call */
+ ret_l6 = line6_parse_audio_format_rates_quirk(chip, fp);
+ if (ret_l6 == -ENODEV) {
+ /* no line6 device found continue showing the error */
+ dev_err(&dev->dev,
+ "%s(): unable to retrieve number of sample rates (clock %d)\n",
__func__, clock);
+ goto err;
+ }
+ if (ret_l6 == 0) {
+ dev_info(&dev->dev,
+ "%s(): unable to retrieve number of sample rates: set it to a predefined value (clock %d).\n",
+ __func__, clock);
+ return 0;
+ }
+ ret = ret_l6;
goto err;
}