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-rw-r--r--drivers/input/serio/i8042-x86ia64io.h28
-rw-r--r--drivers/input/serio/i8042.c37
2 files changed, 57 insertions, 8 deletions
diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
index 83ed2d56b924..fb8a3cd3ffd0 100644
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -377,6 +377,24 @@ static struct dmi_system_id __initdata i8042_dmi_nomux_table[] = {
377 { } 377 { }
378}; 378};
379 379
380static struct dmi_system_id __initdata i8042_dmi_reset_table[] = {
381 {
382 .ident = "MSI Wind U-100",
383 .matches = {
384 DMI_MATCH(DMI_BOARD_NAME, "U-100"),
385 DMI_MATCH(DMI_BOARD_VENDOR, "MICRO-STAR INTERNATIONAL CO., LTD"),
386 },
387 },
388 {
389 .ident = "LG Electronics X110",
390 .matches = {
391 DMI_MATCH(DMI_BOARD_NAME, "X110"),
392 DMI_MATCH(DMI_BOARD_VENDOR, "LG Electronics Inc."),
393 },
394 },
395 { }
396};
397
380#ifdef CONFIG_PNP 398#ifdef CONFIG_PNP
381static struct dmi_system_id __initdata i8042_dmi_nopnp_table[] = { 399static struct dmi_system_id __initdata i8042_dmi_nopnp_table[] = {
382 { 400 {
@@ -386,6 +404,13 @@ static struct dmi_system_id __initdata i8042_dmi_nopnp_table[] = {
386 DMI_MATCH(DMI_BOARD_VENDOR, "Intel Corporation"), 404 DMI_MATCH(DMI_BOARD_VENDOR, "Intel Corporation"),
387 }, 405 },
388 }, 406 },
407 {
408 .ident = "MSI Wind U-100",
409 .matches = {
410 DMI_MATCH(DMI_BOARD_NAME, "U-100"),
411 DMI_MATCH(DMI_BOARD_VENDOR, "MICRO-STAR INTERNATIONAL CO., LTD"),
412 },
413 },
389 { } 414 { }
390}; 415};
391#endif 416#endif
@@ -698,6 +723,9 @@ static int __init i8042_platform_init(void)
698#endif 723#endif
699 724
700#ifdef CONFIG_X86 725#ifdef CONFIG_X86
726 if (dmi_check_system(i8042_dmi_reset_table))
727 i8042_reset = 1;
728
701 if (dmi_check_system(i8042_dmi_noloop_table)) 729 if (dmi_check_system(i8042_dmi_noloop_table))
702 i8042_noloop = 1; 730 i8042_noloop = 1;
703 731
diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c
index 170f71ee5772..3cffb704e374 100644
--- a/drivers/input/serio/i8042.c
+++ b/drivers/input/serio/i8042.c
@@ -712,22 +712,43 @@ static int i8042_controller_check(void)
712static int i8042_controller_selftest(void) 712static int i8042_controller_selftest(void)
713{ 713{
714 unsigned char param; 714 unsigned char param;
715 int i = 0;
715 716
716 if (!i8042_reset) 717 if (!i8042_reset)
717 return 0; 718 return 0;
718 719
719 if (i8042_command(&param, I8042_CMD_CTL_TEST)) { 720 /*
720 printk(KERN_ERR "i8042.c: i8042 controller self test timeout.\n"); 721 * We try this 5 times; on some really fragile systems this does not
721 return -ENODEV; 722 * take the first time...
722 } 723 */
724 do {
725
726 if (i8042_command(&param, I8042_CMD_CTL_TEST)) {
727 printk(KERN_ERR "i8042.c: i8042 controller self test timeout.\n");
728 return -ENODEV;
729 }
730
731 if (param == I8042_RET_CTL_TEST)
732 return 0;
723 733
724 if (param != I8042_RET_CTL_TEST) {
725 printk(KERN_ERR "i8042.c: i8042 controller selftest failed. (%#x != %#x)\n", 734 printk(KERN_ERR "i8042.c: i8042 controller selftest failed. (%#x != %#x)\n",
726 param, I8042_RET_CTL_TEST); 735 param, I8042_RET_CTL_TEST);
727 return -EIO; 736 msleep(50);
728 } 737 } while (i++ < 5);
729 738
739#ifdef CONFIG_X86
740 /*
741 * On x86, we don't fail entire i8042 initialization if controller
742 * reset fails in hopes that keyboard port will still be functional
743 * and user will still get a working keyboard. This is especially
744 * important on netbooks. On other arches we trust hardware more.
745 */
746 printk(KERN_INFO
747 "i8042: giving up on controller selftest, continuing anyway...\n");
730 return 0; 748 return 0;
749#else
750 return -EIO;
751#endif
731} 752}
732 753
733/* 754/*