[PATCH 6/6] igt_kms: add igt_unset_all_crtcs()

[Paulo Zanoni <przanoni@gmail.com>]

From: Paulo Zanoni <paulo.r.zanoni@intel.com>

Both pm_rpm.c and pm_lpsp.c call it "disable_all_screens", but let's
give it a name that better describes what the implementation does.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
---
 lib/igt_kms.c   | 18 ++++++++++++++++++
 lib/igt_kms.h   |  1 +
 tests/pm_lpsp.c | 17 +++--------------
 tests/pm_rpm.c  |  8 +-------
 4 files changed, 23 insertions(+), 21 deletions(-)

diff --git a/lib/igt_kms.c b/lib/igt_kms.c
index 6cca7e8..678b3cd 100644
--- a/lib/igt_kms.c
+++ b/lib/igt_kms.c
@@ -1560,3 +1560,21 @@ void igt_reset_connectors(void)
 
 	close(drm_fd);
 }
+
+/**
+ * igt_unset_all_crtcs:
+ * @drm_fd: the DRM fd
+ * @resources: libdrm resources pointer
+ *
+ * Disables all the screens.
+ */
+void igt_unset_all_crtcs(int drm_fd, drmModeResPtr resources)
+{
+	int i, rc;
+
+	for (i = 0; i < resources->count_crtcs; i++) {
+		rc = drmModeSetCrtc(drm_fd, resources->crtcs[i], -1, 0, 0, NULL,
+				    0, NULL);
+		igt_assert(rc == 0);
+	}
+}
diff --git a/lib/igt_kms.h b/lib/igt_kms.h
index f8c500e..43e84f6 100644
--- a/lib/igt_kms.h
+++ b/lib/igt_kms.h
@@ -258,6 +258,7 @@ void igt_reset_connectors(void);
 bool igt_get_property(int drm_fd, uint32_t object_id, uint32_t object_type,
 		      const char *name, uint32_t *prop_id, uint64_t *value,
 		      drmModePropertyPtr *prop);
+void igt_unset_all_crtcs(int drm_fd, drmModeResPtr resources);
 
 #endif /* __IGT_KMS_H__ */
 
diff --git a/tests/pm_lpsp.c b/tests/pm_lpsp.c
index 9d3884c..b3a21ea 100644
--- a/tests/pm_lpsp.c
+++ b/tests/pm_lpsp.c
@@ -70,22 +70,11 @@ static bool lpsp_is_enabled(int drm_fd)
 	return !(val & HSW_PWR_WELL_STATE_ENABLED);
 }
 
-static void disable_all_screens(int drm_fd, drmModeResPtr drm_resources)
-{
-	int i, rc;
-
-	for (i = 0; i < drm_resources->count_crtcs; i++) {
-		rc = drmModeSetCrtc(drm_fd, drm_resources->crtcs[i], -1, 0, 0,
-				    NULL, 0, NULL);
-		igt_assert(rc == 0);
-	}
-}
-
 /* The LPSP mode is all about an enabled pipe, but we expect to also be in the
  * low power mode when no pipes are enabled, so do this check anyway. */
 static void screens_disabled_subtest(int drm_fd, drmModeResPtr drm_res)
 {
-	disable_all_screens(drm_fd, drm_res);
+	igt_unset_all_crtcs(drm_fd, drm_res);
 	igt_assert(lpsp_is_enabled(drm_fd));
 }
 
@@ -131,7 +120,7 @@ static void edp_subtest(int drm_fd, drmModeResPtr drm_res,
 		.name = "Custom 1024x768",
 	};
 
-	disable_all_screens(drm_fd, drm_res);
+	igt_unset_all_crtcs(drm_fd, drm_res);
 
 	for (i = 0; i < drm_res->count_connectors; i++) {
 		drmModeConnectorPtr c = drm_connectors[i];
@@ -193,7 +182,7 @@ static void non_edp_subtest(int drm_fd, drmModeResPtr drm_res,
 	uint32_t connector_id = 0, crtc_id = 0, buffer_id = 0;
 	drmModeModeInfoPtr mode = NULL;
 
-	disable_all_screens(drm_fd, drm_res);
+	igt_unset_all_crtcs(drm_fd, drm_res);
 
 	for (i = 0; i < drm_res->count_connectors; i++) {
 		drmModeConnectorPtr c = drm_connectors[i];
diff --git a/tests/pm_rpm.c b/tests/pm_rpm.c
index 800ab4b..84c71bd 100644
--- a/tests/pm_rpm.c
+++ b/tests/pm_rpm.c
@@ -232,13 +232,7 @@ static void disable_all_screens_dpms(struct mode_set_data *data)
 
 static void disable_all_screens(struct mode_set_data *data)
 {
-	int i, rc;
-
-	for (i = 0; i < data->res->count_crtcs; i++) {
-		rc = drmModeSetCrtc(drm_fd, data->res->crtcs[i], -1, 0, 0,
-				    NULL, 0, NULL);
-		igt_assert(rc == 0);
-	}
+	igt_unset_all_crtcs(drm_fd, data->res);
 }
 
 static struct scanout_fb *create_fb(struct mode_set_data *data, int width,
-- 
2.0.1