Commit Graph

3 Commits

Author SHA1 Message Date
Rob Herring
43d78445da dt-bindings: interrupt-controller: Drop unneeded quotes
Cleanup bindings dropping unneeded quotes. Once all these are fixed,
checking for this can be enabled in yamllint.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230320233928.2920693-1-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
2023-04-04 12:01:52 -05:00
Rahul Tanwar
b3a9801ccc dt-bindings: x86: apic: Introduce new optional bool property for lapic
X86 defines a few possible interrupt delivery modes. With respect to
boot/init time, mainly two interrupt delivery modes are possible.

 - PIC Mode: Legacy external 8259 compliant PIC interrupt controller
 - Virtual Wire Mode: Use lapic as virtual wire interrupt delivery mode

ACPI and MPS spec compliant systems provide this information, but for OF
based systems, it is by default set to PIC mode.

In fact it is hardcoded to legacy PIC mode for OF based x86 systems with no
option to choose the configuration between PIC mode & virtual wire mode.

For this purpose, introduce a new boolean property for the lapic interrupt
controller node which allows to configure it for virtual wire mode as well.

Property name: 'intel,virtual-wire-mode'
Type: Boolean

If not present/not defined, interrupt delivery mode defaults to legacy PIC
mode. If present/defined, interrupt delivery mode is set to virtual wire
mode.

Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rahul Tanwar <rtanwar@maxlinear.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20221124084143.21841-3-rtanwar@maxlinear.com
2022-12-02 14:57:14 +01:00
Rahul Tanwar
2b822f4746 dt-bindings: x86: apic: Convert Intel's APIC bindings to YAML schema
The DT bindings for X86 local APIC (lapic) and I/O APIC (ioapic) are
outdated. Rework them:

   - Convert the bindings for lapic and ioapic from text to YAML schema.
   - Separate lapic & ioapic schemas.
   - Add missing but required standard properties
   - Add missing descriptions

Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rahul Tanwar <rtanwar@maxlinear.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20221124084143.21841-2-rtanwar@maxlinear.com
2022-12-02 14:57:13 +01:00