--- zzzz-none-000/linux-3.10.107/sound/ppc/pmac.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/sound/ppc/pmac.c	2021-02-04 17:41:59.000000000 +0000
@@ -20,7 +20,7 @@
  */
 
 
-#include <asm/io.h>
+#include <linux/io.h>
 #include <asm/irq.h>
 #include <linux/init.h>
 #include <linux/delay.h>
@@ -28,6 +28,8 @@
 #include <linux/interrupt.h>
 #include <linux/pci.h>
 #include <linux/dma-mapping.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <sound/core.h>
 #include "pmac.h"
 #include <sound/pcm_params.h>
@@ -238,7 +240,7 @@
 	 */
 	spin_lock_irq(&chip->reg_lock);
 	snd_pmac_dma_stop(rec);
-	st_le16(&chip->extra_dma.cmds->command, DBDMA_STOP);
+	chip->extra_dma.cmds->command = cpu_to_le16(DBDMA_STOP);
 	snd_pmac_dma_set_command(rec, &chip->extra_dma);
 	snd_pmac_dma_run(rec, RUN);
 	spin_unlock_irq(&chip->reg_lock);
@@ -249,15 +251,15 @@
 	 */
 	offset = runtime->dma_addr;
 	for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++) {
-		st_le32(&cp->phy_addr, offset);
-		st_le16(&cp->req_count, rec->period_size);
-		/*st_le16(&cp->res_count, 0);*/
-		st_le16(&cp->xfer_status, 0);
+		cp->phy_addr = cpu_to_le32(offset);
+		cp->req_count = cpu_to_le16(rec->period_size);
+		/*cp->res_count = cpu_to_le16(0);*/
+		cp->xfer_status = cpu_to_le16(0);
 		offset += rec->period_size;
 	}
 	/* make loop */
-	st_le16(&cp->command, DBDMA_NOP + BR_ALWAYS);
-	st_le32(&cp->cmd_dep, rec->cmd.addr);
+	cp->command = cpu_to_le16(DBDMA_NOP + BR_ALWAYS);
+	cp->cmd_dep = cpu_to_le32(rec->cmd.addr);
 
 	snd_pmac_dma_stop(rec);
 	snd_pmac_dma_set_command(rec, &rec->cmd);
@@ -326,7 +328,7 @@
 #if 1 /* hmm.. how can we get the current dma pointer?? */
 	int stat;
 	volatile struct dbdma_cmd __iomem *cp = &rec->cmd.cmds[rec->cur_period];
-	stat = ld_le16(&cp->xfer_status);
+	stat = le16_to_cpu(cp->xfer_status);
 	if (stat & (ACTIVE|DEAD)) {
 		count = in_le16(&cp->res_count);
 		if (count)
@@ -425,26 +427,26 @@
 		memcpy((void *)emergency_dbdma.cmds, (void *)cp,
 		       sizeof(struct dbdma_cmd));
 		emergency_in_use = 1;
-		st_le16(&cp->xfer_status, 0);
-		st_le16(&cp->req_count, rec->period_size);
+		cp->xfer_status = cpu_to_le16(0);
+		cp->req_count = cpu_to_le16(rec->period_size);
 		cp = emergency_dbdma.cmds;
 	}
 
 	/* now bump the values to reflect the amount
 	   we haven't yet shifted */
-	req = ld_le16(&cp->req_count);
-	res = ld_le16(&cp->res_count);
-	phy = ld_le32(&cp->phy_addr);
+	req = le16_to_cpu(cp->req_count);
+	res = le16_to_cpu(cp->res_count);
+	phy = le32_to_cpu(cp->phy_addr);
 	phy += (req - res);
-	st_le16(&cp->req_count, res);
-	st_le16(&cp->res_count, 0);
-	st_le16(&cp->xfer_status, 0);
-	st_le32(&cp->phy_addr, phy);
+	cp->req_count = cpu_to_le16(res);
+	cp->res_count = cpu_to_le16(0);
+	cp->xfer_status = cpu_to_le16(0);
+	cp->phy_addr = cpu_to_le32(phy);
 
-	st_le32(&cp->cmd_dep, rec->cmd.addr
+	cp->cmd_dep = cpu_to_le32(rec->cmd.addr
 		+ sizeof(struct dbdma_cmd)*((rec->cur_period+1)%rec->nperiods));
 
-	st_le16(&cp->command, OUTPUT_MORE | BR_ALWAYS | INTR_ALWAYS);
+	cp->command = cpu_to_le16(OUTPUT_MORE | BR_ALWAYS | INTR_ALWAYS);
 
 	/* point at our patched up command block */
 	out_le32(&rec->dma->cmdptr, emergency_dbdma.addr);
@@ -473,7 +475,7 @@
 			else
 				cp = &rec->cmd.cmds[rec->cur_period];
 
-			stat = ld_le16(&cp->xfer_status);
+			stat = le16_to_cpu(cp->xfer_status);
 
 			if (stat & DEAD) {
 				snd_pmac_pcm_dead_xfer(rec, cp);
@@ -487,9 +489,9 @@
 				break;
 
 			/*printk(KERN_DEBUG "update frag %d\n", rec->cur_period);*/
-			st_le16(&cp->xfer_status, 0);
-			st_le16(&cp->req_count, rec->period_size);
-			/*st_le16(&cp->res_count, 0);*/
+			cp->xfer_status = cpu_to_le16(0);
+			cp->req_count = cpu_to_le16(rec->period_size);
+			/*cp->res_count = cpu_to_le16(0);*/
 			rec->cur_period++;
 			if (rec->cur_period >= rec->nperiods) {
 				rec->cur_period = 0;
@@ -758,11 +760,11 @@
 	struct pmac_stream *rec = &chip->playback;
 
 	snd_pmac_dma_stop(rec);
-	st_le16(&chip->extra_dma.cmds->req_count, bytes);
-	st_le16(&chip->extra_dma.cmds->xfer_status, 0);
-	st_le32(&chip->extra_dma.cmds->cmd_dep, chip->extra_dma.addr);
-	st_le32(&chip->extra_dma.cmds->phy_addr, addr);
-	st_le16(&chip->extra_dma.cmds->command, OUTPUT_MORE + BR_ALWAYS);
+	chip->extra_dma.cmds->req_count = cpu_to_le16(bytes);
+	chip->extra_dma.cmds->xfer_status = cpu_to_le16(0);
+	chip->extra_dma.cmds->cmd_dep = cpu_to_le32(chip->extra_dma.addr);
+	chip->extra_dma.cmds->phy_addr = cpu_to_le32(addr);
+	chip->extra_dma.cmds->command = cpu_to_le16(OUTPUT_MORE + BR_ALWAYS);
 	out_le32(&chip->awacs->control,
 		 (in_le32(&chip->awacs->control) & ~0x1f00)
 		 | (speed << 8));
@@ -774,7 +776,7 @@
 void snd_pmac_beep_dma_stop(struct snd_pmac *chip)
 {
 	snd_pmac_dma_stop(&chip->playback);
-	st_le16(&chip->extra_dma.cmds->command, DBDMA_STOP);
+	chip->extra_dma.cmds->command = cpu_to_le16(DBDMA_STOP);
 	snd_pmac_pcm_set_format(chip); /* reset format */
 }
 
@@ -865,16 +867,11 @@
 	snd_pmac_dbdma_free(chip, &chip->capture.cmd);
 	snd_pmac_dbdma_free(chip, &chip->extra_dma);
 	snd_pmac_dbdma_free(chip, &emergency_dbdma);
-	if (chip->macio_base)
-		iounmap(chip->macio_base);
-	if (chip->latch_base)
-		iounmap(chip->latch_base);
-	if (chip->awacs)
-		iounmap(chip->awacs);
-	if (chip->playback.dma)
-		iounmap(chip->playback.dma);
-	if (chip->capture.dma)
-		iounmap(chip->capture.dma);
+	iounmap(chip->macio_base);
+	iounmap(chip->latch_base);
+	iounmap(chip->awacs);
+	iounmap(chip->playback.dma);
+	iounmap(chip->capture.dma);
 
 	if (chip->node) {
 		int i;
@@ -885,8 +882,7 @@
 		}
 	}
 
-	if (chip->pdev)
-		pci_dev_put(chip->pdev);
+	pci_dev_put(chip->pdev);
 	of_node_put(chip->node);
 	kfree(chip);
 	return 0;
@@ -990,9 +986,9 @@
 		return -ENODEV;
 
 	if (!sound) {
-		sound = of_find_node_by_name(NULL, "sound");
-		while (sound && sound->parent != chip->node)
-			sound = of_find_node_by_name(sound, "sound");
+		for_each_node_by_name(sound, "sound")
+			if (sound->parent == chip->node)
+				break;
 	}
 	if (! sound) {
 		of_node_put(chip->node);