drm/i915: extract intel_pipe_crc.h from intel_drv.h

It used to be handy that we only had a couple of headers, but over time
intel_drv.h has become unwieldy. Extract declarations to a separate
header file corresponding to the implementation module, clarifying the
modularity of the driver.

Ensure the new header is self-contained, and do so with minimal further
includes, using forward declarations as needed. Include the new header
only where needed, and sort the modified include directives while at it
and as needed.

No functional changes.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/b106b21ef11ff7fc34537b2c029a1332c8573fcc.1554461791.git.jani.nikula@intel.com

5 files changed, 40 insertions, 22 deletions

diff --git a/drivers/gpu/drm/i915/Makefile.header-test b/drivers/gpu/drm/i915/Makefile.header-test
index 43c939da9665..2724ccff61ea 100644
--- a/drivers/gpu/drm/i915/Makefile.header-test
+++ b/drivers/gpu/drm/i915/Makefile.header-test
@@ -25,6 +25,7 @@ header_test := \
 	intel_hdmi.h \
 	intel_lspcon.h \
 	intel_panel.h \
+	intel_pipe_crc.h \
 	intel_pm.h \
 	intel_psr.h \
 	intel_sdvo.h \
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 4f53fc31dd0a..0058c951fb2b 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -60,6 +60,7 @@
 #include "intel_frontbuffer.h"
 #include "intel_hdcp.h"
 #include "intel_hdmi.h"
+#include "intel_pipe_crc.h"
 #include "intel_pm.h"
 #include "intel_psr.h"
 #include "intel_sdvo.h"
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index ad53165d3151..c024ef9dfe6d 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -2121,25 +2121,4 @@ int intel_atomic_setup_scalers(struct drm_i915_private *dev_priv,
 			       struct intel_crtc *intel_crtc,
 			       struct intel_crtc_state *crtc_state);
 
-/* intel_pipe_crc.c */
-#ifdef CONFIG_DEBUG_FS
-int intel_crtc_set_crc_source(struct drm_crtc *crtc, const char *source_name);
-int intel_crtc_verify_crc_source(struct drm_crtc *crtc,
-				 const char *source_name, size_t *values_cnt);
-const char *const *intel_crtc_get_crc_sources(struct drm_crtc *crtc,
-					      size_t *count);
-void intel_crtc_disable_pipe_crc(struct intel_crtc *crtc);
-void intel_crtc_enable_pipe_crc(struct intel_crtc *crtc);
-#else
-#define intel_crtc_set_crc_source NULL
-#define intel_crtc_verify_crc_source NULL
-#define intel_crtc_get_crc_sources NULL
-static inline void intel_crtc_disable_pipe_crc(struct intel_crtc *crtc)
-{
-}
-
-static inline void intel_crtc_enable_pipe_crc(struct intel_crtc *crtc)
-{
-}
-#endif
 #endif /* __INTEL_DRV_H__ */
diff --git a/drivers/gpu/drm/i915/intel_pipe_crc.c b/drivers/gpu/drm/i915/intel_pipe_crc.c
index 0b1378f0bff7..e94b5b1bc1b7 100644
--- a/drivers/gpu/drm/i915/intel_pipe_crc.c
+++ b/drivers/gpu/drm/i915/intel_pipe_crc.c
@@ -24,11 +24,13 @@
  *
  */
 
-#include <linux/seq_file.h>
 #include <linux/circ_buf.h>
 #include <linux/ctype.h>
 #include <linux/debugfs.h>
+#include <linux/seq_file.h>
+
 #include "intel_drv.h"
+#include "intel_pipe_crc.h"
 
 static const char * const pipe_crc_sources[] = {
 	[INTEL_PIPE_CRC_SOURCE_NONE] = "none",
diff --git a/drivers/gpu/drm/i915/intel_pipe_crc.h b/drivers/gpu/drm/i915/intel_pipe_crc.h
new file mode 100644
index 000000000000..81eaf1854788
--- /dev/null
+++ b/drivers/gpu/drm/i915/intel_pipe_crc.h
@@ -0,0 +1,35 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2019 Intel Corporation
+ */
+
+#ifndef __INTEL_PIPE_CRC_H__
+#define __INTEL_PIPE_CRC_H__
+
+#include <linux/types.h>
+
+struct drm_crtc;
+struct intel_crtc;
+
+#ifdef CONFIG_DEBUG_FS
+int intel_crtc_set_crc_source(struct drm_crtc *crtc, const char *source_name);
+int intel_crtc_verify_crc_source(struct drm_crtc *crtc,
+				 const char *source_name, size_t *values_cnt);
+const char *const *intel_crtc_get_crc_sources(struct drm_crtc *crtc,
+					      size_t *count);
+void intel_crtc_disable_pipe_crc(struct intel_crtc *crtc);
+void intel_crtc_enable_pipe_crc(struct intel_crtc *crtc);
+#else
+#define intel_crtc_set_crc_source NULL
+#define intel_crtc_verify_crc_source NULL
+#define intel_crtc_get_crc_sources NULL
+static inline void intel_crtc_disable_pipe_crc(struct intel_crtc *crtc)
+{
+}
+
+static inline void intel_crtc_enable_pipe_crc(struct intel_crtc *crtc)
+{
+}
+#endif
+
+#endif /* __INTEL_PIPE_CRC_H__ */