ALSA: mpu401_uart: Use standard print API

Use the standard print API with dev_*() instead of the old house-baked
one.  It gives better information and allows dynamically control of
debug prints.

The assignment of mpu->rmidi was moved to an earlier place, so that
dev_*() can access to the proper device pointer.
Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20240807133452.9424-5-tiwai@suse.de

sound/drivers/mpu401/mpu401_uart.c

@@ -73,8 +73,9 @@ static void snd_mpu401_uart_clear_rx(struct snd_mpu401 *mpu)
 		mpu->read(mpu, MPU401D(mpu));
 #ifdef CONFIG_SND_DEBUG
 	if (timeout <= 0)
-		snd_printk(KERN_ERR "cmd: clear rx timeout (status = 0x%x)\n",
-			   mpu->read(mpu, MPU401C(mpu)));
+		dev_err(mpu->rmidi->dev,
+			"cmd: clear rx timeout (status = 0x%x)\n",
+			mpu->read(mpu, MPU401C(mpu)));
 #endif
 }
 
@@ -224,8 +225,9 @@ static int snd_mpu401_uart_cmd(struct snd_mpu401 * mpu, unsigned char cmd,
 			udelay(10);
 #ifdef CONFIG_SND_DEBUG
 		if (!timeout)
-			snd_printk(KERN_ERR "cmd: tx timeout (status = 0x%x)\n",
-				   mpu->read(mpu, MPU401C(mpu)));
+			dev_err(mpu->rmidi->dev,
+				"cmd: tx timeout (status = 0x%x)\n",
+				mpu->read(mpu, MPU401C(mpu)));
 #endif
 	}
 	mpu->write(mpu, cmd, MPU401C(mpu));
@@ -244,10 +246,11 @@ static int snd_mpu401_uart_cmd(struct snd_mpu401 * mpu, unsigned char cmd,
 		ok = 1;
 	spin_unlock_irqrestore(&mpu->input_lock, flags);
 	if (!ok) {
-		snd_printk(KERN_ERR "cmd: 0x%x failed at 0x%lx "
-			   "(status = 0x%x, data = 0x%x)\n", cmd, mpu->port,
-			   mpu->read(mpu, MPU401C(mpu)),
-			   mpu->read(mpu, MPU401D(mpu)));
+		dev_err(mpu->rmidi->dev,
+			"cmd: 0x%x failed at 0x%lx (status = 0x%x, data = 0x%x)\n",
+			cmd, mpu->port,
+			mpu->read(mpu, MPU401C(mpu)),
+			mpu->read(mpu, MPU401D(mpu)));
 		return 1;
 	}
 	return 0;
@@ -546,13 +549,14 @@ int snd_mpu401_uart_new(struct snd_card *card, int device,
 	spin_lock_init(&mpu->timer_lock);
 	mpu->hardware = hardware;
 	mpu->irq = -1;
+	mpu->rmidi = rmidi;
 	if (! (info_flags & MPU401_INFO_INTEGRATED)) {
 		int res_size = hardware == MPU401_HW_PC98II ? 4 : 2;
 		mpu->res = request_region(port, res_size, "MPU401 UART");
 		if (!mpu->res) {
-			snd_printk(KERN_ERR "mpu401_uart: "
-				   "unable to grab port 0x%lx size %d\n",
-				   port, res_size);
+			dev_err(rmidi->dev,
+				"mpu401_uart: unable to grab port 0x%lx size %d\n",
+				port, res_size);
 			err = -EBUSY;
 			goto free_device;
 		}
@@ -572,8 +576,8 @@ int snd_mpu401_uart_new(struct snd_card *card, int device,
 	if (irq >= 0) {
 		if (request_irq(irq, snd_mpu401_uart_interrupt, 0,
 				"MPU401 UART", (void *) mpu)) {
-			snd_printk(KERN_ERR "mpu401_uart: "
-				   "unable to grab IRQ %d\n", irq);
+			dev_err(rmidi->dev,
+				"mpu401_uart: unable to grab IRQ %d\n", irq);
 			err = -EBUSY;
 			goto free_device;
 		}
@@ -599,7 +603,6 @@ int snd_mpu401_uart_new(struct snd_card *card, int device,
 		if (out_enable)
 			rmidi->info_flags |= SNDRV_RAWMIDI_INFO_DUPLEX;
 	}
-	mpu->rmidi = rmidi;
 	if (rrawmidi)
 		*rrawmidi = rmidi;
 	return 0;