From 05e59e5fb0064c97a1c10921ecd549f2d4a58565 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 09 Oct 2024 06:14:40 +0000
Subject: [PATCH] add REDIRECT

---
 kernel/sound/sh/sh_dac_audio.c |   40 ++++------------------------------------
 1 files changed, 4 insertions(+), 36 deletions(-)

diff --git a/kernel/sound/sh/sh_dac_audio.c b/kernel/sound/sh/sh_dac_audio.c
index 6251b5e..feb2850 100644
--- a/kernel/sound/sh/sh_dac_audio.c
+++ b/kernel/sound/sh/sh_dac_audio.c
@@ -1,25 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * sh_dac_audio.c - SuperH DAC audio driver for ALSA
  *
  * Copyright (c) 2009 by Rafael Ignacio Zurita <rizurita@yahoo.com>
  *
- *
  * Based on sh_dac_audio.c (Copyright (C) 2004, 2005 by Andriy Skulysh)
- *
- *   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/hrtimer.h>
@@ -140,18 +125,6 @@
 	return 0;
 }
 
-static int snd_sh_dac_pcm_hw_params(struct snd_pcm_substream *substream,
-				struct snd_pcm_hw_params *hw_params)
-{
-	return snd_pcm_lib_malloc_pages(substream,
-			params_buffer_bytes(hw_params));
-}
-
-static int snd_sh_dac_pcm_hw_free(struct snd_pcm_substream *substream)
-{
-	return snd_pcm_lib_free_pages(substream);
-}
-
 static int snd_sh_dac_pcm_prepare(struct snd_pcm_substream *substream)
 {
 	struct snd_sh_dac *chip = snd_pcm_substream_chip(substream);
@@ -252,9 +225,6 @@
 static const struct snd_pcm_ops snd_sh_dac_pcm_ops = {
 	.open		= snd_sh_dac_pcm_open,
 	.close		= snd_sh_dac_pcm_close,
-	.ioctl		= snd_pcm_lib_ioctl,
-	.hw_params	= snd_sh_dac_pcm_hw_params,
-	.hw_free	= snd_sh_dac_pcm_hw_free,
 	.prepare	= snd_sh_dac_pcm_prepare,
 	.trigger	= snd_sh_dac_pcm_trigger,
 	.pointer	= snd_sh_dac_pcm_pointer,
@@ -279,10 +249,8 @@
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_sh_dac_pcm_ops);
 
 	/* buffer size=48K */
-	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_CONTINUOUS,
-					  snd_dma_continuous_data(GFP_KERNEL),
-							48 * 1024,
-							48 * 1024);
+	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_CONTINUOUS,
+				       NULL, 48 * 1024, 48 * 1024);
 
 	return 0;
 }
@@ -354,7 +322,7 @@
 	struct snd_sh_dac *chip;
 	int err;
 
-	static struct snd_device_ops ops = {
+	static const struct snd_device_ops ops = {
 		   .dev_free = snd_sh_dac_dev_free,
 	};
 

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