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staging/atomisp: add PCI dependency

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Without CONFIG_PCI, config space reads never return any data,
leading to undefined behavior that gcc warns about:

platform/intel-mid/intel_mid_pcihelpers.c: In function 'intel_mid_msgbus_read32_raw':
platform/intel-mid/intel_mid_pcihelpers.c:66:9: error: 'data' is used uninitialized in this function [-Werror=uninitialized]
platform/intel-mid/intel_mid_pcihelpers.c: In function 'intel_mid_msgbus_read32_raw_ext':
platform/intel-mid/intel_mid_pcihelpers.c:84:9: error: 'data' is used uninitialized in this function [-Werror=uninitialized]
platform/intel-mid/intel_mid_pcihelpers.c: In function 'intel_mid_msgbus_read32':
platform/intel-mid/intel_mid_pcihelpers.c:137:9: error: 'data' is used uninitialized in this function [-Werror=uninitialized]

With a dependency on CONFIG_PCI, we don't get this warning. This seems
safe as PCI config space accessors should always return something
when PCI is enabled.

Fixes: a49d25364d ("staging/atomisp: Add support for the Intel IPU v2")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Arnd Bergmann 2017-03-20 14:41:55 +00:00 • committed by Greg Kroah-Hartman
commit 19740d6840
1 changed files with 1 additions and 1 deletions
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2
drivers/staging/media/atomisp/Kconfig
View file

@ -1,6 +1,6 @@
menuconfig INTEL_ATOMISP
bool "Enable support to Intel MIPI camera drivers"
depends on X86 && EFI && MEDIA_CONTROLLER
depends on X86 && EFI && MEDIA_CONTROLLER && PCI
help
Enable support for the Intel ISP2 camera interfaces and MIPI
sensor drivers.