Skip to content

2.6.7-mm6, port ACPI sleep workaround to new DMI probing

Andrey Panin lkml 1 version In review

Get series with b4
b4 am [email protected]

Versions newest first

  1. v1 Latest0 of 1 patch 1 replyIn review

Patches in v1 No applies recorded yet

The patch the cover letter announces is not in this archive.

Reviews trailers per patch

No Reviewed-by, Acked-by or Tested-by trailers for v1 yet.

Read the v1 thread

Cover letter [PATCH 0/1] 2.6.7-mm6, port ACPI sleep workaround to new DMI probing

This patch moves Toshiba ACPI sleep workaround out of dmi_scan.c

Please consider applying.

Signed-off-by Andrey Panin <[email protected]>
 arch/i386/kernel/dmi_scan.c |   14 --------------
 drivers/acpi/sleep/main.c   |   29 +++++++++++++++++++++++++++--
 2 files changed, 27 insertions(+), 16 deletions(-)
arch/i386/kernel/dmi_scan.c +0 -14
diff -urpNX /usr/share/dontdiff linux-2.6.7-mm6.vanilla/arch/i386/kernel/dmi_scan.c linux-2.6.7-mm6/arch/i386/kernel/dmi_scan.c
@@ -195,16 +195,6 @@ static __init int broken_toshiba_keyboar
 	return 0;
 }
 
-/*
- * Toshiba fails to preserve interrupts over S1
- */
-
-static __init int init_ints_after_s1(struct dmi_blacklist *d)
-{
-	printk(KERN_WARNING "Toshiba with broken S1 detected.\n");
-	dmi_broken |= BROKEN_INIT_AFTER_S1;
-	return 0;
-}
 
 #ifdef CONFIG_ACPI_SLEEP
 static __init int reset_videomode_after_s3(struct dmi_blacklist *d)

@@ -323,10 +313,6 @@ static __initdata struct dmi_blacklist d
 			} },
 
 	{ broken_toshiba_keyboard, "Toshiba Satellite 4030cdt", { /* Keyboard generates spurious repeats */
-			MATCH(DMI_PRODUCT_NAME, "S4030CDT/4.3"),
-			NO_MATCH, NO_MATCH, NO_MATCH
-			} },
-	{ init_ints_after_s1, "Toshiba Satellite 4030cdt", { /* Reinitialization of 8259 is needed after S1 resume */
 			MATCH(DMI_PRODUCT_NAME, "S4030CDT/4.3"),
 			NO_MATCH, NO_MATCH, NO_MATCH
 			} },
drivers/acpi/sleep/main.c +27 -2
diff -urpNX /usr/share/dontdiff linux-2.6.7-mm6.vanilla/drivers/acpi/sleep/main.c linux-2.6.7-mm6/drivers/acpi/sleep/main.c
@@ -10,6 +10,7 @@
 
 #include <linux/delay.h>
 #include <linux/irq.h>
+#include <linux/dmi.h>
 #include <linux/device.h>
 #include <linux/suspend.h>
 #include <acpi/acpi_bus.h>

@@ -30,6 +31,8 @@ static u32 acpi_suspend_states[] = {
 	[PM_SUSPEND_DISK]	= ACPI_STATE_S4,
 };
 
+static int init_8259A_after_S1;
+
 /**
  *	acpi_pm_prepare - Do preliminary suspend work.
  *	@pm_state:		suspend state we're entering.

@@ -140,7 +143,7 @@ static int acpi_pm_finish(u32 pm_state)
 	/* reset firmware waking vector */
 	acpi_set_firmware_waking_vector((acpi_physical_address) 0);
 
-	if (dmi_broken & BROKEN_INIT_AFTER_S1) {
+	if (init_8259A_after_S1) {
 		printk("Broken toshiba laptop -> kicking interrupts\n");
 		init_8259A(0);
 	}

@@ -161,16 +164,38 @@ int acpi_suspend(u32 acpi_state)
 	return -EINVAL;
 }
 
-
 static struct pm_ops acpi_pm_ops = {
 	.prepare	= acpi_pm_prepare,
 	.enter		= acpi_pm_enter,
 	.finish		= acpi_pm_finish,
 };
 
+
+/*
+ * Toshiba fails to preserve interrupts over S1, reinitialization 
+ * of 8259 is needed after S1 resume.
+ */
+static int __init init_ints_after_s1(struct dmi_system_id *d)
+{
+	printk(KERN_WARNING "%s with broken S1 detected.\n", d->ident);
+	init_8259A_after_S1 = 1;
+	return 0;
+}
+
+static struct dmi_system_id __initdata acpisleep_dmi_table[] = {
+	{	
+		.callback = init_ints_after_s1,
+		.ident = "Toshiba Satellite 4030cdt",
+		.matches = { DMI_MATCH(DMI_PRODUCT_NAME, "S4030CDT/4.3"), },
+	},
+	{ },
+};
+
 static int __init acpi_sleep_init(void)
 {
 	int			i = 0;
+
+	dmi_check_system(acpisleep_dmi_table);
 
 	if (acpi_disabled)
 		return 0;

Read the cover letter in its thread