1 /* SPDX-License-Identifier: MIT */ 2 /* 3 * Copyright © 2013-2021 Intel Corporation 4 */ 5 6 #ifndef _INTEL_SBI_H_ 7 #define _INTEL_SBI_H_ 8 9 #include <linux/types.h> 10 11 struct drm_i915_private; 12 13 enum intel_sbi_destination { 14 SBI_ICLK, 15 SBI_MPHY, 16 }; 17 18 void intel_sbi_init(struct drm_i915_private *i915); 19 void intel_sbi_fini(struct drm_i915_private *i915); 20 void intel_sbi_lock(struct drm_i915_private *i915); 21 void intel_sbi_unlock(struct drm_i915_private *i915); 22 u32 intel_sbi_read(struct drm_i915_private *i915, u16 reg, 23 enum intel_sbi_destination destination); 24 void intel_sbi_write(struct drm_i915_private *i915, u16 reg, u32 value, 25 enum intel_sbi_destination destination); 26 27 #endif /* _INTEL_SBI_H_ */ 28