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For PUNIT device, ISPDRIVER_IPC and GTDDRIVER_IPC resources are not
mandatory. So when PMC IPC driver creates a PUNIT device, if these
resources are not available then it creates dummy resource entries for
these missing resources. But during PUNIT device probe, doing ioremap on
these dummy resources generates following warning messages.
intel_punit_ipc: can't request region for resource [mem 0x00000000]
intel_punit_ipc: can't request region for resource [mem 0x00000000]
intel_punit_ipc: can't request region for resource [mem 0x00000000]
intel_punit_ipc: can't request region for resource [mem 0x00000000]
This patch fixes this issue by adding extra check for resource size
before performing ioremap operation.
Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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Currently the optional IPC resources prevent telemetry driver from
probing if these resources are not in ACPI table. This patch decouples
telemetry driver from these optional resources, so that telemetry driver
has dependency only on the necessary ACPI resources.
Signed-off-by: Aubrey Li <aubrey.li@linux.intel.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
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intel_punit_ipc_command() maybe called when in or out
data pointers are NULL.
Signed-off-by: Qipeng Zha <qipeng.zha@intel.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
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This driver provides support for P-Unit mailbox IPC on Intel platforms.
The heart of the P-Unit is the Foxton microcontroller and its firmware,
which provide mailbox interface for power management usage.
Signed-off-by: Qipeng Zha <qipeng.zha@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
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