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f270857385
The LPT/WPT IOSF sideband is unrelated to pcode or VLV/CHV IOSF sideband. It's just confusing to piggyback on the same mutex. Add a dedicated lock with init and cleanup functions. Reviewed-by: Jouni Högander <jouni.hogander@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/139933094fe51fccdbe14d4e20df69782e801905.1730193891.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
28 lines
702 B
C
28 lines
702 B
C
/* SPDX-License-Identifier: MIT */
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/*
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* Copyright © 2013-2021 Intel Corporation
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*/
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#ifndef _INTEL_SBI_H_
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#define _INTEL_SBI_H_
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#include <linux/types.h>
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struct drm_i915_private;
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enum intel_sbi_destination {
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SBI_ICLK,
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SBI_MPHY,
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};
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void intel_sbi_init(struct drm_i915_private *i915);
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void intel_sbi_fini(struct drm_i915_private *i915);
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void intel_sbi_lock(struct drm_i915_private *i915);
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void intel_sbi_unlock(struct drm_i915_private *i915);
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u32 intel_sbi_read(struct drm_i915_private *i915, u16 reg,
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enum intel_sbi_destination destination);
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void intel_sbi_write(struct drm_i915_private *i915, u16 reg, u32 value,
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enum intel_sbi_destination destination);
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#endif /* _INTEL_SBI_H_ */
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