[PATCH 2.5.68] sonypi driver update

[Stelian Pop]

Hi,

The attached patch:

* fixes a hang problem when loading the driver on (at least) a
  PCG-FX105k. Thanks to Jozef Kruger for reporting the problem
  and testing different versions of this fix.
  
* fixes a .text.exit problem in the sonypi driver related to the
  recent PM changes (thanks to Adrian Bunk for the patch).
  
* fixes the irq handling reports (make sonypi always report IRQ_HANDLED)
  because there *are* events belonging to the sonypi device which
  are not (yet) recognized by the driver and we don't want those 
  to pollute the logs...

Linus, please apply.

Stelian.

===== drivers/char/sonypi.h 1.15 vs edited =====
--- 1.15/drivers/char/sonypi.h	Tue Feb 18 12:33:04 2003
+++ edited/drivers/char/sonypi.h	Sun Mar 30 15:11:30 2003
@@ -37,7 +37,7 @@
 #ifdef __KERNEL__
 
 #define SONYPI_DRIVER_MAJORVERSION	 1
-#define SONYPI_DRIVER_MINORVERSION	18
+#define SONYPI_DRIVER_MINORVERSION	19
 
 #define SONYPI_DEVICE_MODEL_TYPE1	1
 #define SONYPI_DEVICE_MODEL_TYPE2	2
===== drivers/char/sonypi.c 1.16 vs edited =====
--- 1.16/drivers/char/sonypi.c	Mon Apr 21 09:53:24 2003
+++ edited/drivers/char/sonypi.c	Thu Apr 24 10:43:29 2003
@@ -162,7 +162,7 @@
 }
 
 /* Disables the device - this comes from the AML code in the ACPI bios */
-static void __devexit sonypi_type1_dis(void) {
+static void sonypi_type1_dis(void) {
 	u32 v;
 
 	pci_read_config_dword(sonypi_device.dev, SONYPI_G10A, &v);
@@ -174,7 +174,7 @@
 	outl(v, SONYPI_IRQ_PORT);
 }
 
-static void __devexit sonypi_type2_dis(void) {
+static void sonypi_type2_dis(void) {
 	if (ec_write(SONYPI_SHIB, 0))
 		printk(KERN_WARNING "ec_write failed\n");
 	if (ec_write(SONYPI_SLOB, 0))
@@ -334,7 +334,10 @@
 	if (verbose)
 		printk(KERN_WARNING 
 		       "sonypi: unknown event port1=0x%02x,port2=0x%02x\n",v1,v2);
-	return IRQ_NONE;
+	/* We need to return IRQ_HANDLED here because there *are*
+	 * events belonging to the sonypi device we don't know about, 
+	 * but we still don't want those to pollute the logs... */
+	return IRQ_HANDLED;
 
 found:
 #if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE)
@@ -698,14 +701,36 @@
 	}
 
 	for (i = 0; irq_list[i].irq; i++) {
-		if (!request_irq(irq_list[i].irq, sonypi_irq, 
-				 SA_SHIRQ, "sonypi", sonypi_irq)) {
-			sonypi_device.irq = irq_list[i].irq;
-			sonypi_device.bits = irq_list[i].bits;
+
+		sonypi_device.irq = irq_list[i].irq;
+		sonypi_device.bits = irq_list[i].bits;
+
+		/* Enable sonypi IRQ settings */
+		if (sonypi_device.model == SONYPI_DEVICE_MODEL_TYPE2)
+			sonypi_type2_srs();
+		else
+			sonypi_type1_srs();
+
+		sonypi_call1(0x82);
+		sonypi_call2(0x81, 0xff);
+		if (compat)
+			sonypi_call1(0x92); 
+		else
+			sonypi_call1(0x82);
+
+		/* Now try requesting the irq from the system */
+		if (!request_irq(sonypi_device.irq, sonypi_irq, 
+				 SA_SHIRQ, "sonypi", sonypi_irq))
 			break;
-		}
+
+		/* If request_irq failed, disable sonypi IRQ settings */
+		if (sonypi_device.model == SONYPI_DEVICE_MODEL_TYPE2)
+			sonypi_type2_dis();
+		else
+			sonypi_type1_dis();
 	}
-	if (!sonypi_device.irq ) {
+
+	if (!irq_list[i].irq) {
 		printk(KERN_ERR "sonypi: request_irq failed\n");
 		ret = -ENODEV;
 		goto out3;
@@ -717,17 +742,6 @@
 		outb(0xf0, 0xb2);
 #endif
 
-	if (sonypi_device.model == SONYPI_DEVICE_MODEL_TYPE2)
-		sonypi_type2_srs();
-	else
-		sonypi_type1_srs();
-
-	sonypi_call1(0x82);
-	sonypi_call2(0x81, 0xff);
-	if (compat)
-		sonypi_call1(0x92); 
-	else
-		sonypi_call1(0x82);
 
 	printk(KERN_INFO "sonypi: Sony Programmable I/O Controller Driver v%d.%d.\n",
 	       SONYPI_DRIVER_MAJORVERSION,

-- 
Stelian Pop <[e-mail]>