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author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-07-13 17:31:11 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-07-13 17:31:11 -0700 |
commit | bcefc8d0d3a0cba9078f519d69f138b93ad30e39 (patch) | |
tree | 45079de6cba248d2ea0f420cddda20f29f386aea | |
parent | 177dd7e1ebac9420636f155e8d429bc4f809c724 (diff) | |
parent | 5cdfa1c3bbabb809ef3134f741a63e13373a8cad (diff) | |
download | linux-stable-bcefc8d0d3a0cba9078f519d69f138b93ad30e39.tar.gz linux-stable-bcefc8d0d3a0cba9078f519d69f138b93ad30e39.tar.bz2 linux-stable-bcefc8d0d3a0cba9078f519d69f138b93ad30e39.zip |
Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
input: i8042 - add runtime check in x86's i8042_platform_init
Revert "Input: fixup X86_MRST selects"
Revert "Input: do not force selecting i8042 on Moorestown"
x86, mrst: Add i8042_detect API for Moorestwon platform
x86: Add i8042 pre-detection hook to x86_platform_ops
x86, platform: Export x86_platform to modules
-rw-r--r-- | arch/x86/include/asm/x86_init.h | 2 | ||||
-rw-r--r-- | arch/x86/kernel/mrst.c | 7 | ||||
-rw-r--r-- | arch/x86/kernel/x86_init.c | 7 | ||||
-rw-r--r-- | drivers/input/keyboard/Kconfig | 4 | ||||
-rw-r--r-- | drivers/input/mouse/Kconfig | 2 | ||||
-rw-r--r-- | drivers/input/serio/Kconfig | 2 | ||||
-rw-r--r-- | drivers/input/serio/i8042-x86ia64io.h | 10 |
7 files changed, 29 insertions, 5 deletions
diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h index 519b54327d75..baa579c8e038 100644 --- a/arch/x86/include/asm/x86_init.h +++ b/arch/x86/include/asm/x86_init.h @@ -142,6 +142,7 @@ struct x86_cpuinit_ops { * @set_wallclock: set time back to HW clock * @is_untracked_pat_range exclude from PAT logic * @nmi_init enable NMI on cpus + * @i8042_detect pre-detect if i8042 controller exists */ struct x86_platform_ops { unsigned long (*calibrate_tsc)(void); @@ -150,6 +151,7 @@ struct x86_platform_ops { void (*iommu_shutdown)(void); bool (*is_untracked_pat_range)(u64 start, u64 end); void (*nmi_init)(void); + int (*i8042_detect)(void); }; extern struct x86_init_ops x86_init; diff --git a/arch/x86/kernel/mrst.c b/arch/x86/kernel/mrst.c index e796448f0eb5..5915e0b33303 100644 --- a/arch/x86/kernel/mrst.c +++ b/arch/x86/kernel/mrst.c @@ -216,6 +216,12 @@ static void __init mrst_setup_boot_clock(void) setup_boot_APIC_clock(); }; +/* MID systems don't have i8042 controller */ +static int mrst_i8042_detect(void) +{ + return 0; +} + /* * Moorestown specific x86_init function overrides and early setup * calls. @@ -233,6 +239,7 @@ void __init x86_mrst_early_setup(void) x86_cpuinit.setup_percpu_clockev = mrst_setup_secondary_clock; x86_platform.calibrate_tsc = mrst_calibrate_tsc; + x86_platform.i8042_detect = mrst_i8042_detect; x86_init.pci.init = pci_mrst_init; x86_init.pci.fixup_irqs = x86_init_noop; diff --git a/arch/x86/kernel/x86_init.c b/arch/x86/kernel/x86_init.c index 61a1e8c7e19f..cd6da6bf3eca 100644 --- a/arch/x86/kernel/x86_init.c +++ b/arch/x86/kernel/x86_init.c @@ -5,6 +5,7 @@ */ #include <linux/init.h> #include <linux/ioport.h> +#include <linux/module.h> #include <asm/bios_ebda.h> #include <asm/paravirt.h> @@ -85,6 +86,7 @@ struct x86_cpuinit_ops x86_cpuinit __cpuinitdata = { }; static void default_nmi_init(void) { }; +static int default_i8042_detect(void) { return 1; }; struct x86_platform_ops x86_platform = { .calibrate_tsc = native_calibrate_tsc, @@ -92,5 +94,8 @@ struct x86_platform_ops x86_platform = { .set_wallclock = mach_set_rtc_mmss, .iommu_shutdown = iommu_shutdown_noop, .is_untracked_pat_range = is_ISA_range, - .nmi_init = default_nmi_init + .nmi_init = default_nmi_init, + .i8042_detect = default_i8042_detect }; + +EXPORT_SYMBOL_GPL(x86_platform); diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig index 0f9a4785d798..3525f533e186 100644 --- a/drivers/input/keyboard/Kconfig +++ b/drivers/input/keyboard/Kconfig @@ -69,11 +69,11 @@ config KEYBOARD_ATARI module will be called atakbd. config KEYBOARD_ATKBD - tristate "AT keyboard" if EMBEDDED || !X86 || X86_MRST + tristate "AT keyboard" if EMBEDDED || !X86 default y select SERIO select SERIO_LIBPS2 - select SERIO_I8042 if X86 && !X86_MRST + select SERIO_I8042 if X86 select SERIO_GSCPS2 if GSC help Say Y here if you want to use a standard AT or PS/2 keyboard. Usually diff --git a/drivers/input/mouse/Kconfig b/drivers/input/mouse/Kconfig index eeb58c1cac16..c714ca2407f8 100644 --- a/drivers/input/mouse/Kconfig +++ b/drivers/input/mouse/Kconfig @@ -17,7 +17,7 @@ config MOUSE_PS2 default y select SERIO select SERIO_LIBPS2 - select SERIO_I8042 if X86 && !X86_MRST + select SERIO_I8042 if X86 select SERIO_GSCPS2 if GSC help Say Y here if you have a PS/2 mouse connected to your system. This diff --git a/drivers/input/serio/Kconfig b/drivers/input/serio/Kconfig index 256b9e9394dc..3bfe8fafc6ad 100644 --- a/drivers/input/serio/Kconfig +++ b/drivers/input/serio/Kconfig @@ -22,7 +22,7 @@ config SERIO_I8042 tristate "i8042 PC Keyboard controller" if EMBEDDED || !X86 default y depends on !PARISC && (!ARM || ARCH_SHARK || FOOTBRIDGE_HOST) && \ - (!SUPERH || SH_CAYMAN) && !M68K && !BLACKFIN && !X86_MRST + (!SUPERH || SH_CAYMAN) && !M68K && !BLACKFIN help i8042 is the chip over which the standard AT keyboard and PS/2 mouse are connected to the computer. If you use these devices, diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h index 6168469ad1a6..81003c4739f4 100644 --- a/drivers/input/serio/i8042-x86ia64io.h +++ b/drivers/input/serio/i8042-x86ia64io.h @@ -7,6 +7,10 @@ * the Free Software Foundation. */ +#ifdef CONFIG_X86 +#include <asm/x86_init.h> +#endif + /* * Names. */ @@ -840,6 +844,12 @@ static int __init i8042_platform_init(void) { int retval; +#ifdef CONFIG_X86 + /* Just return if pre-detection shows no i8042 controller exist */ + if (!x86_platform.i8042_detect()) + return -ENODEV; +#endif + /* * On ix86 platforms touching the i8042 data register region can do really * bad things. Because of this the region is always reserved on ix86 boxes. |