Merge branch 'linus' into x86/mm

x86/mm is on 32-rc4 and missing the spinlock namespace changes which
are needed for further commits into this topic.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 114 insertions, 86 deletions

diff --git a/drivers/macintosh/via-pmu.c b/drivers/macintosh/via-pmu.c
index b40fb9b6c862..db379c381432 100644
--- a/drivers/macintosh/via-pmu.c
+++ b/drivers/macintosh/via-pmu.c
@@ -36,6 +36,7 @@
 #include <linux/spinlock.h>
 #include <linux/pm.h>
 #include <linux/proc_fs.h>
+#include <linux/seq_file.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/device.h>
@@ -186,17 +187,11 @@ static int init_pmu(void);
 static void pmu_start(void);
 static irqreturn_t via_pmu_interrupt(int irq, void *arg);
 static irqreturn_t gpio1_interrupt(int irq, void *arg);
-static int proc_get_info(char *page, char **start, off_t off,
-			  int count, int *eof, void *data);
-static int proc_get_irqstats(char *page, char **start, off_t off,
-			  int count, int *eof, void *data);
+static const struct file_operations pmu_info_proc_fops;
+static const struct file_operations pmu_irqstats_proc_fops;
 static void pmu_pass_intr(unsigned char *data, int len);
-static int proc_get_batt(char *page, char **start, off_t off,
-			int count, int *eof, void *data);
-static int proc_read_options(char *page, char **start, off_t off,
-			int count, int *eof, void *data);
-static int proc_write_options(struct file *file, const char __user *buffer,
-			unsigned long count, void *data);
+static const struct file_operations pmu_battery_proc_fops;
+static const struct file_operations pmu_options_proc_fops;
 
 #ifdef CONFIG_ADB
 struct adb_driver via_pmu_driver = {
@@ -405,7 +400,11 @@ static int __init via_pmu_start(void)
 		printk(KERN_ERR "via-pmu: can't map interrupt\n");
 		return -ENODEV;
 	}
-	if (request_irq(irq, via_pmu_interrupt, 0, "VIA-PMU", (void *)0)) {
+	/* We set IRQF_TIMER because we don't want the interrupt to be disabled
+	 * between the 2 passes of driver suspend, we control our own disabling
+	 * for that one
+	 */
+	if (request_irq(irq, via_pmu_interrupt, IRQF_TIMER, "VIA-PMU", (void *)0)) {
 		printk(KERN_ERR "via-pmu: can't request irq %d\n", irq);
 		return -ENODEV;
 	}
@@ -419,7 +418,7 @@ static int __init via_pmu_start(void)
 			gpio_irq = irq_of_parse_and_map(gpio_node, 0);
 
 		if (gpio_irq != NO_IRQ) {
-			if (request_irq(gpio_irq, gpio1_interrupt, 0,
+			if (request_irq(gpio_irq, gpio1_interrupt, IRQF_TIMER,
 					"GPIO1 ADB", (void *)0))
 				printk(KERN_ERR "pmu: can't get irq %d"
 				       " (GPIO1)\n", gpio_irq);
@@ -503,19 +502,15 @@ static int __init via_pmu_dev_init(void)
 		for (i=0; i<pmu_battery_count; i++) {
 			char title[16];
 			sprintf(title, "battery_%ld", i);
-			proc_pmu_batt[i] = create_proc_read_entry(title, 0, proc_pmu_root,
-						proc_get_batt, (void *)i);
+			proc_pmu_batt[i] = proc_create_data(title, 0, proc_pmu_root,
+					&pmu_battery_proc_fops, (void *)i);
 		}
 
-		proc_pmu_info = create_proc_read_entry("info", 0, proc_pmu_root,
-					proc_get_info, NULL);
-		proc_pmu_irqstats = create_proc_read_entry("interrupts", 0, proc_pmu_root,
-					proc_get_irqstats, NULL);
-		proc_pmu_options = create_proc_entry("options", 0600, proc_pmu_root);
-		if (proc_pmu_options) {
-			proc_pmu_options->read_proc = proc_read_options;
-			proc_pmu_options->write_proc = proc_write_options;
-		}
+		proc_pmu_info = proc_create("info", 0, proc_pmu_root, &pmu_info_proc_fops);
+		proc_pmu_irqstats = proc_create("interrupts", 0, proc_pmu_root,
+						&pmu_irqstats_proc_fops);
+		proc_pmu_options = proc_create("options", 0600, proc_pmu_root,
+						&pmu_options_proc_fops);
 	}
 	return 0;
 }
@@ -795,27 +790,33 @@ query_battery_state(void)
 			2, PMU_SMART_BATTERY_STATE, pmu_cur_battery+1);
 }
 
-static int
-proc_get_info(char *page, char **start, off_t off,
-		int count, int *eof, void *data)
+static int pmu_info_proc_show(struct seq_file *m, void *v)
 {
-	char* p = page;
-
-	p += sprintf(p, "PMU driver version     : %d\n", PMU_DRIVER_VERSION);
-	p += sprintf(p, "PMU firmware version   : %02x\n", pmu_version);
-	p += sprintf(p, "AC Power               : %d\n",
+	seq_printf(m, "PMU driver version     : %d\n", PMU_DRIVER_VERSION);
+	seq_printf(m, "PMU firmware version   : %02x\n", pmu_version);
+	seq_printf(m, "AC Power               : %d\n",
 		((pmu_power_flags & PMU_PWR_AC_PRESENT) != 0) || pmu_battery_count == 0);
-	p += sprintf(p, "Battery count          : %d\n", pmu_battery_count);
+	seq_printf(m, "Battery count          : %d\n", pmu_battery_count);
 
-	return p - page;
+	return 0;
 }
 
-static int
-proc_get_irqstats(char *page, char **start, off_t off,
-		  int count, int *eof, void *data)
+static int pmu_info_proc_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, pmu_info_proc_show, NULL);
+}
+
+static const struct file_operations pmu_info_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= pmu_info_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
+static int pmu_irqstats_proc_show(struct seq_file *m, void *v)
 {
 	int i;
-	char* p = page;
 	static const char *irq_names[] = {
 		"Total CB1 triggered events",
 		"Total GPIO1 triggered events",
@@ -831,60 +832,76 @@ proc_get_irqstats(char *page, char **start, off_t off,
         };
 
 	for (i=0; i<11; i++) {
-		p += sprintf(p, " %2u: %10u (%s)\n",
+		seq_printf(m, " %2u: %10u (%s)\n",
 			     i, pmu_irq_stats[i], irq_names[i]);
 	}
-	return p - page;
+	return 0;
 }
 
-static int
-proc_get_batt(char *page, char **start, off_t off,
-		int count, int *eof, void *data)
+static int pmu_irqstats_proc_open(struct inode *inode, struct file *file)
 {
-	long batnum = (long)data;
-	char *p = page;
+	return single_open(file, pmu_irqstats_proc_show, NULL);
+}
+
+static const struct file_operations pmu_irqstats_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= pmu_irqstats_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
+static int pmu_battery_proc_show(struct seq_file *m, void *v)
+{
+	long batnum = (long)m->private;
 	
-	p += sprintf(p, "\n");
-	p += sprintf(p, "flags      : %08x\n",
-		pmu_batteries[batnum].flags);
-	p += sprintf(p, "charge     : %d\n",
-		pmu_batteries[batnum].charge);
-	p += sprintf(p, "max_charge : %d\n",
-		pmu_batteries[batnum].max_charge);
-	p += sprintf(p, "current    : %d\n",
-		pmu_batteries[batnum].amperage);
-	p += sprintf(p, "voltage    : %d\n",
-		pmu_batteries[batnum].voltage);
-	p += sprintf(p, "time rem.  : %d\n",
-		pmu_batteries[batnum].time_remaining);
-
-	return p - page;
+	seq_putc(m, '\n');
+	seq_printf(m, "flags      : %08x\n", pmu_batteries[batnum].flags);
+	seq_printf(m, "charge     : %d\n", pmu_batteries[batnum].charge);
+	seq_printf(m, "max_charge : %d\n", pmu_batteries[batnum].max_charge);
+	seq_printf(m, "current    : %d\n", pmu_batteries[batnum].amperage);
+	seq_printf(m, "voltage    : %d\n", pmu_batteries[batnum].voltage);
+	seq_printf(m, "time rem.  : %d\n", pmu_batteries[batnum].time_remaining);
+	return 0;
 }
 
-static int
-proc_read_options(char *page, char **start, off_t off,
-			int count, int *eof, void *data)
+static int pmu_battery_proc_open(struct inode *inode, struct file *file)
 {
-	char *p = page;
+	return single_open(file, pmu_battery_proc_show, PDE(inode)->data);
+}
+
+static const struct file_operations pmu_battery_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= pmu_battery_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
 
+static int pmu_options_proc_show(struct seq_file *m, void *v)
+{
 #if defined(CONFIG_SUSPEND) && defined(CONFIG_PPC32)
 	if (pmu_kind == PMU_KEYLARGO_BASED &&
 	    pmac_call_feature(PMAC_FTR_SLEEP_STATE,NULL,0,-1) >= 0)
-		p += sprintf(p, "lid_wakeup=%d\n", option_lid_wakeup);
+		seq_printf(m, "lid_wakeup=%d\n", option_lid_wakeup);
 #endif
 	if (pmu_kind == PMU_KEYLARGO_BASED)
-		p += sprintf(p, "server_mode=%d\n", option_server_mode);
+		seq_printf(m, "server_mode=%d\n", option_server_mode);
 
-	return p - page;
+	return 0;
 }
-			
-static int
-proc_write_options(struct file *file, const char __user *buffer,
-			unsigned long count, void *data)
+
+static int pmu_options_proc_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, pmu_options_proc_show, NULL);
+}
+
+static ssize_t pmu_options_proc_write(struct file *file,
+		const char __user *buffer, size_t count, loff_t *pos)
 {
 	char tmp[33];
 	char *label, *val;
-	unsigned long fcount = count;
+	size_t fcount = count;
 	
 	if (!count)
 		return -EINVAL;
@@ -923,10 +940,18 @@ proc_write_options(struct file *file, const char __user *buffer,
 	return fcount;
 }
 
+static const struct file_operations pmu_options_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= pmu_options_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+	.write		= pmu_options_proc_write,
+};
+
 #ifdef CONFIG_ADB
 /* Send an ADB command */
-static int
-pmu_send_request(struct adb_request *req, int sync)
+static int pmu_send_request(struct adb_request *req, int sync)
 {
 	int i, ret;
 
@@ -1005,16 +1030,11 @@ pmu_send_request(struct adb_request *req, int sync)
 }
 
 /* Enable/disable autopolling */
-static int
-pmu_adb_autopoll(int devs)
+static int __pmu_adb_autopoll(int devs)
 {
 	struct adb_request req;
 
-	if ((vias == NULL) || (!pmu_fully_inited) || !pmu_has_adb)
-		return -ENXIO;
-
 	if (devs) {
-		adb_dev_map = devs;
 		pmu_request(&req, NULL, 5, PMU_ADB_CMD, 0, 0x86,
 			    adb_dev_map >> 8, adb_dev_map);
 		pmu_adb_flags = 2;
@@ -1027,9 +1047,17 @@ pmu_adb_autopoll(int devs)
 	return 0;
 }
 
+static int pmu_adb_autopoll(int devs)
+{
+	if ((vias == NULL) || (!pmu_fully_inited) || !pmu_has_adb)
+		return -ENXIO;
+
+	adb_dev_map = devs;
+	return __pmu_adb_autopoll(devs);
+}
+
 /* Reset the ADB bus */
-static int
-pmu_adb_reset_bus(void)
+static int pmu_adb_reset_bus(void)
 {
 	struct adb_request req;
 	int save_autopoll = adb_dev_map;
@@ -1038,13 +1066,13 @@ pmu_adb_reset_bus(void)
 		return -ENXIO;
 
 	/* anyone got a better idea?? */
-	pmu_adb_autopoll(0);
+	__pmu_adb_autopoll(0);
 
-	req.nbytes = 5;
+	req.nbytes = 4;
 	req.done = NULL;
 	req.data[0] = PMU_ADB_CMD;
-	req.data[1] = 0;
-	req.data[2] = ADB_BUSRESET;
+	req.data[1] = ADB_BUSRESET;
+	req.data[2] = 0;
 	req.data[3] = 0;
 	req.data[4] = 0;
 	req.reply_len = 0;
@@ -1056,7 +1084,7 @@ pmu_adb_reset_bus(void)
 	pmu_wait_complete(&req);
 
 	if (save_autopoll != 0)
-		pmu_adb_autopoll(save_autopoll);
+		__pmu_adb_autopoll(save_autopoll);
 
 	return 0;
 }