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path: root/drivers/gpu/drm/i915/display/intel_sbi.h
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Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_sbi.h')
-rw-r--r--drivers/gpu/drm/i915/display/intel_sbi.h27
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_sbi.h b/drivers/gpu/drm/i915/display/intel_sbi.h
new file mode 100644
index 000000000000..841f77a142a1
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_sbi.h
@@ -0,0 +1,27 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2013-2021 Intel Corporation
+ */
+
+#ifndef _INTEL_SBI_H_
+#define _INTEL_SBI_H_
+
+#include <linux/types.h>
+
+struct intel_display;
+
+enum intel_sbi_destination {
+ SBI_ICLK,
+ SBI_MPHY,
+};
+
+void intel_sbi_init(struct intel_display *display);
+void intel_sbi_fini(struct intel_display *display);
+void intel_sbi_lock(struct intel_display *display);
+void intel_sbi_unlock(struct intel_display *display);
+u32 intel_sbi_read(struct intel_display *display, u16 reg,
+ enum intel_sbi_destination destination);
+void intel_sbi_write(struct intel_display *display, u16 reg, u32 value,
+ enum intel_sbi_destination destination);
+
+#endif /* _INTEL_SBI_H_ */