Merge tag 'm68k-for-v4.17-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k

Pull m68k updates from Geert Uytterhoeven:

 - Macintosh enhancements and fixes

 - Remove useless memory layout printing using hashed pointers

 - Add missing Amiga Zorro bus DMA mask

 - Small fixes and cleanups

 - Defconfig updates

* tag 'm68k-for-v4.17-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
  m68k/mac: Remove bogus "FIXME" comment
  m68k/mac: Enable RTC for 100-series PowerBooks
  m68k/mac: Clean up whitespace and remove redundant parentheses
  m68k/defconfig: Update defconfigs for v4.16-rc5
  zorro: Set up z->dev.dma_mask for the DMA API
  m68k/time: Stop validating rtc_time in .read_time
  m68k/mm: Stop printing the virtual memory layout
  macintosh/via-pmu68k: Initialize PMU driver with setup_arch and arch_initcall
  m68k/mac: Fix apparent race condition in Baboon interrupt dispatch
  m68k/mac: Enable PDMA support for PowerBook 190

2 files changed, 73 insertions, 28 deletions

diff --git a/drivers/macintosh/via-pmu68k.c b/drivers/macintosh/via-pmu68k.c
index 25465fb91ec9..7d9c4baf8c11 100644
--- a/drivers/macintosh/via-pmu68k.c
+++ b/drivers/macintosh/via-pmu68k.c
@@ -109,6 +109,7 @@ static int pmu_autopoll(int devs);
 void pmu_poll(void);
 static int pmu_reset_bus(void);
 
+static int init_pmu(void);
 static void pmu_start(void);
 static void send_byte(int x);
 static void recv_byte(void);
@@ -171,23 +172,76 @@ static s8 pmu_data_len[256][2] = {
 /*f8*/	{-1,-1},{-1,-1},{-1,-1},{-1,-1},{-1,-1},{-1,-1},{-1,-1},{-1,-1},
 };
 
-int pmu_probe(void)
+int __init find_via_pmu(void)
 {
-	if (macintosh_config->adb_type == MAC_ADB_PB1) {
+	switch (macintosh_config->adb_type) {
+	case MAC_ADB_PB1:
 		pmu_kind = PMU_68K_V1;
-	} else if (macintosh_config->adb_type == MAC_ADB_PB2) {
+		break;
+	case MAC_ADB_PB2:
 		pmu_kind = PMU_68K_V2;
-	} else {
+		break;
+	default:
+		pmu_kind = PMU_UNKNOWN;
 		return -ENODEV;
 	}
 
 	pmu_state = idle;
 
+	if (!init_pmu())
+		goto fail_init;
+
+	pr_info("adb: PMU 68K driver v0.5 for Unified ADB\n");
+
+	return 1;
+
+fail_init:
+	pmu_kind = PMU_UNKNOWN;
 	return 0;
 }
 
-static int 
-pmu_init(void)
+static int pmu_probe(void)
+{
+	if (pmu_kind == PMU_UNKNOWN)
+		return -ENODEV;
+	return 0;
+}
+
+static int pmu_init(void)
+{
+	if (pmu_kind == PMU_UNKNOWN)
+		return -ENODEV;
+	return 0;
+}
+
+static int __init via_pmu_start(void)
+{
+	if (pmu_kind == PMU_UNKNOWN)
+		return -ENODEV;
+
+	if (request_irq(IRQ_MAC_ADB_SR, pmu_interrupt, 0, "PMU_SR",
+			pmu_interrupt)) {
+		pr_err("%s: can't get SR irq\n", __func__);
+		return -ENODEV;
+	}
+	if (request_irq(IRQ_MAC_ADB_CL, pmu_interrupt, 0, "PMU_CL",
+			pmu_interrupt)) {
+		pr_err("%s: can't get CL irq\n", __func__);
+		free_irq(IRQ_MAC_ADB_SR, pmu_interrupt);
+		return -ENODEV;
+	}
+
+	pmu_fully_inited = 1;
+
+	/* Enable backlight */
+	pmu_enable_backlight(1);
+
+	return 0;
+}
+
+arch_initcall(via_pmu_start);
+
+static int __init init_pmu(void)
 {
 	int timeout;
 	volatile struct adb_request req;
@@ -238,28 +292,7 @@ pmu_init(void)
 	bright_req_2.complete = 1;
 	bright_req_3.complete = 1;
 
-	if (request_irq(IRQ_MAC_ADB_SR, pmu_interrupt, 0, "pmu-shift",
-			pmu_interrupt)) {
-		printk(KERN_ERR "pmu_init: can't get irq %d\n",
-			IRQ_MAC_ADB_SR);
-		return -EAGAIN;
-	}
-	if (request_irq(IRQ_MAC_ADB_CL, pmu_interrupt, 0, "pmu-clock",
-			pmu_interrupt)) {
-		printk(KERN_ERR "pmu_init: can't get irq %d\n",
-			IRQ_MAC_ADB_CL);
-		free_irq(IRQ_MAC_ADB_SR, pmu_interrupt);
-		return -EAGAIN;
-	}
-
-	pmu_fully_inited = 1;
-	
-	/* Enable backlight */
-	pmu_enable_backlight(1);
-
-	printk("adb: PMU 68K driver v0.5 for Unified ADB.\n");
-
-	return 0;
+	return 1;
 }
 
 int
diff --git a/drivers/zorro/zorro.c b/drivers/zorro/zorro.c
index cc1b1ac57d61..47728477297e 100644
--- a/drivers/zorro/zorro.c
+++ b/drivers/zorro/zorro.c
@@ -16,6 +16,7 @@
 #include <linux/bitops.h>
 #include <linux/string.h>
 #include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
 #include <linux/slab.h>
 
 #include <asm/byteorder.h>
@@ -185,6 +186,17 @@ static int __init amiga_zorro_probe(struct platform_device *pdev)
 		z->dev.parent = &bus->dev;
 		z->dev.bus = &zorro_bus_type;
 		z->dev.id = i;
+		switch (z->rom.er_Type & ERT_TYPEMASK) {
+		case ERT_ZORROIII:
+			z->dev.coherent_dma_mask = DMA_BIT_MASK(32);
+			break;
+
+		case ERT_ZORROII:
+		default:
+			z->dev.coherent_dma_mask = DMA_BIT_MASK(24);
+			break;
+		}
+		z->dev.dma_mask = &z->dev.coherent_dma_mask;
 	}
 
 	/* ... then register them */