From d92f1a2829dbe29c644569a3b64a021e4d90005d Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Sat, 26 Apr 2008 22:25:18 +0200
Subject: [PATCH] ide: manage I/O resources in ide_legacy_init_one()

* Tell IDE layer to not manage resources by setting hwif->mmio flag.

* Use {request,release}_region() for resources management.

* Set ->name field of 'struct ide_port_info' instances in legacy VLB
  host drivers and use driver name for resources management.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/ide-probe.c      | 14 ++++++++++++++
 drivers/ide/legacy/ali14xx.c |  3 +++
 drivers/ide/legacy/dtc2278.c |  3 +++
 drivers/ide/legacy/ht6560b.c |  1 +
 drivers/ide/legacy/qd65xx.c  |  3 +++
 drivers/ide/legacy/umc8672.c |  3 +++
 6 files changed, 27 insertions(+)

diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index e299c80c6a57..670d7f9ccf0e 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -1648,12 +1648,26 @@ static void ide_legacy_init_one(u8 *idx, hw_regs_t *hw, u8 port_no,
 		irq  = 15;
 	}
 
+	if (!request_region(base, 8, d->name)) {
+		printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n",
+				d->name, base, base + 7);
+		return;
+	}
+
+	if (!request_region(ctl, 1, d->name)) {
+		printk(KERN_ERR "%s: I/O resource 0x%lX not free.\n",
+				d->name, ctl);
+		release_region(base, 8);
+		return;
+	}
+
 	ide_std_init_ports(hw, base, ctl);
 	hw->irq = irq;
 
 	hwif = ide_find_port_slot(d);
 	if (hwif) {
 		ide_init_port_hw(hwif, hw);
+		hwif->mmio = 1;
 		if (config)
 			hwif->config_data = config;
 		idx[port_no] = hwif->index;
diff --git a/drivers/ide/legacy/ali14xx.c b/drivers/ide/legacy/ali14xx.c
index 7bfb28edf511..6efbf947c6db 100644
--- a/drivers/ide/legacy/ali14xx.c
+++ b/drivers/ide/legacy/ali14xx.c
@@ -49,6 +49,8 @@
 
 #include <asm/io.h>
 
+#define DRV_NAME "ali14xx"
+
 /* port addresses for auto-detection */
 #define ALI_NUM_PORTS 4
 static const int ports[ALI_NUM_PORTS] __initdata =
@@ -197,6 +199,7 @@ static const struct ide_port_ops ali14xx_port_ops = {
 };
 
 static const struct ide_port_info ali14xx_port_info = {
+	.name			= DRV_NAME,
 	.chipset		= ide_ali14xx,
 	.port_ops		= &ali14xx_port_ops,
 	.host_flags		= IDE_HFLAG_NO_DMA | IDE_HFLAG_NO_AUTOTUNE,
diff --git a/drivers/ide/legacy/dtc2278.c b/drivers/ide/legacy/dtc2278.c
index 7b5585c1c4c0..f7c4ad1c57c0 100644
--- a/drivers/ide/legacy/dtc2278.c
+++ b/drivers/ide/legacy/dtc2278.c
@@ -16,6 +16,8 @@
 
 #include <asm/io.h>
 
+#define DRV_NAME "dtc2278"
+
 /*
  * Changing this #undef to #define may solve start up problems in some systems.
  */
@@ -91,6 +93,7 @@ static const struct ide_port_ops dtc2278_port_ops = {
 };
 
 static const struct ide_port_info dtc2278_port_info __initdata = {
+	.name			= DRV_NAME,
 	.chipset		= ide_dtc2278,
 	.port_ops		= &dtc2278_port_ops,
 	.host_flags		= IDE_HFLAG_SERIALIZE |
diff --git a/drivers/ide/legacy/ht6560b.c b/drivers/ide/legacy/ht6560b.c
index 558964fc994e..971960ee7c03 100644
--- a/drivers/ide/legacy/ht6560b.c
+++ b/drivers/ide/legacy/ht6560b.c
@@ -335,6 +335,7 @@ static const struct ide_port_ops ht6560b_port_ops = {
 };
 
 static const struct ide_port_info ht6560b_port_info __initdata = {
+	.name			= DRV_NAME,
 	.chipset		= ide_ht6560b,
 	.port_ops		= &ht6560b_port_ops,
 	.host_flags		= IDE_HFLAG_SERIALIZE | /* is this needed? */
diff --git a/drivers/ide/legacy/qd65xx.c b/drivers/ide/legacy/qd65xx.c
index 336ef20407f4..15a99aae0cf9 100644
--- a/drivers/ide/legacy/qd65xx.c
+++ b/drivers/ide/legacy/qd65xx.c
@@ -37,6 +37,8 @@
 #include <asm/system.h>
 #include <asm/io.h>
 
+#define DRV_NAME "qd65xx"
+
 #include "qd65xx.h"
 
 /*
@@ -317,6 +319,7 @@ static const struct ide_port_ops qd6580_port_ops = {
 };
 
 static const struct ide_port_info qd65xx_port_info __initdata = {
+	.name			= DRV_NAME,
 	.chipset		= ide_qd65xx,
 	.host_flags		= IDE_HFLAG_IO_32BIT |
 				  IDE_HFLAG_NO_DMA |
diff --git a/drivers/ide/legacy/umc8672.c b/drivers/ide/legacy/umc8672.c
index 95c643a2228a..17d515329fe0 100644
--- a/drivers/ide/legacy/umc8672.c
+++ b/drivers/ide/legacy/umc8672.c
@@ -51,6 +51,8 @@
 
 #include <asm/io.h>
 
+#define DRV_NAME "umc8672"
+
 /*
  * Default speeds.  These can be changed with "auto-tune" and/or hdparm.
  */
@@ -125,6 +127,7 @@ static const struct ide_port_ops umc8672_port_ops = {
 };
 
 static const struct ide_port_info umc8672_port_info __initdata = {
+	.name			= DRV_NAME,
 	.chipset		= ide_umc8672,
 	.port_ops		= &umc8672_port_ops,
 	.host_flags		= IDE_HFLAG_NO_DMA | IDE_HFLAG_NO_AUTOTUNE,
-- 
GitLab