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platform: Provide stubs for !HAS_IOMEM builds

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The various _ioremap_resource functions are not built when
CONFIG_HAS_IOMEM is disabled but no stubs are provided. Given how
widespread IOMEM usage is in drivers and how rare !IOMEM configurations
are in practical use let's just provide some stubs so users will build
without having to add explicit dependencies on IOMEM.

The most likely use case is builds with UML for KUnit testing.

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: David Gow <davidgow@google.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230718-asoc-topology-kunit-enable-v2-2-0ee11e662b92@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Mark Brown 2023-07-18 01:28:43 +01:00
parent da7c07b108
commit a0c74f6c9e
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GPG Key ID: 24D68B725D5487D0
1 changed files with 28 additions and 0 deletions
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28
include/linux/platform_device.h
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@ -63,6 +63,8 @@ extern struct resource *platform_get_mem_or_io(struct platform_device *,
extern struct device *
platform_find_device_by_driver(struct device *start,
const struct device_driver *drv);
#ifdef CONFIG_HAS_IOMEM
extern void __iomem *
devm_platform_get_and_ioremap_resource(struct platform_device *pdev,
unsigned int index, struct resource **res);
@ -72,6 +74,32 @@ devm_platform_ioremap_resource(struct platform_device *pdev,
extern void __iomem *
devm_platform_ioremap_resource_byname(struct platform_device *pdev,
const char *name);
#else
static inline void __iomem *
devm_platform_get_and_ioremap_resource(struct platform_device *pdev,
unsigned int index, struct resource **res)
{
return ERR_PTR(-EINVAL);
}
static inline void __iomem *
devm_platform_ioremap_resource(struct platform_device *pdev,
unsigned int index)
{
return ERR_PTR(-EINVAL);
}
static inline void __iomem *
devm_platform_ioremap_resource_byname(struct platform_device *pdev,
const char *name)
{
return ERR_PTR(-EINVAL);
}
#endif
extern int platform_get_irq(struct platform_device *, unsigned int);
extern int platform_get_irq_optional(struct platform_device *, unsigned int);
extern int platform_irq_count(struct platform_device *);