linux/drivers/gpu/drm/i915/i915_iosf_mbi.h
Mullati, Siva f0e204e0d3 drm/i915: abstraction for iosf to compile on all archs
The asm/iosf_mbi.h header is x86-only. Let's make IOSF_MBI kconfig
selection conditional to x86 and provide a header with stubs for other
architectures. This helps getting i915 available for other
architectures in future.

Signed-off-by: Mullati, Siva <siva.mullati@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211022192756.1228354-1-siva.mullati@intel.com
2021-10-27 00:32:01 -07:00

43 lines
885 B
C

/* SPDX-License-Identifier: MIT */
/*
* Copyright © 2021 Intel Corporation
*/
#ifndef __I915_IOSF_MBI_H__
#define __I915_IOSF_MBI_H__
#if IS_ENABLED(CONFIG_IOSF_MBI)
#include <asm/iosf_mbi.h>
#else
/* Stubs to compile for all non-x86 archs */
#define MBI_PMIC_BUS_ACCESS_BEGIN 1
#define MBI_PMIC_BUS_ACCESS_END 2
struct notifier_block;
static inline void iosf_mbi_punit_acquire(void) {}
static inline void iosf_mbi_punit_release(void) {}
static inline void iosf_mbi_assert_punit_acquired(void) {}
static inline
int iosf_mbi_register_pmic_bus_access_notifier(struct notifier_block *nb)
{
return 0;
}
static inline int
iosf_mbi_unregister_pmic_bus_access_notifier_unlocked(struct notifier_block *nb)
{
return 0;
}
static inline
int iosf_mbi_unregister_pmic_bus_access_notifier(struct notifier_block *nb)
{
return 0;
}
#endif
#endif /* __I915_IOSF_MBI_H__ */