diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
index 872edb4..ba45c998 100644
--- a/drivers/gpu/drm/Kconfig
+++ b/drivers/gpu/drm/Kconfig
@@ -68,6 +68,7 @@
 config DRM_KUNIT_TEST_HELPERS
 	tristate
 	depends on DRM && KUNIT
+	select DRM_KMS_HELPER
 	help
 	  KUnit Helpers for KMS drivers.
 
@@ -80,7 +81,6 @@
 	select DRM_EXEC
 	select DRM_EXPORT_FOR_TESTS if m
 	select DRM_GEM_SHMEM_HELPER
-	select DRM_KMS_HELPER
 	select DRM_KUNIT_TEST_HELPERS
 	select DRM_LIB_RANDOM
 	select PRIME_NUMBERS
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/r535.c b/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/r535.c
index 666eb93..11b4c9c 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/r535.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/r535.c
@@ -41,7 +41,6 @@
 
 	rm->dtor = r535_devinit_dtor;
 	rm->post = hw->post;
-	rm->disable = hw->disable;
 
 	ret = nv50_devinit_new_(rm, device, type, inst, pdevinit);
 	if (ret)
diff --git a/drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c b/drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c
index 69001a3..2d1880c 100644
--- a/drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c
+++ b/drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c
@@ -166,7 +166,7 @@
 				 unsigned long long clock)
 {
 	const struct sun4i_hdmi *hdmi = drm_connector_to_sun4i_hdmi(connector);
-	unsigned long diff = clock / 200; /* +-0.5% allowed by HDMI spec */
+	unsigned long diff = div_u64(clock, 200); /* +-0.5% allowed by HDMI spec */
 	long rounded_rate;
 
 	if (mode->flags & DRM_MODE_FLAG_DBLCLK)
diff --git a/include/drm/drm_bridge.h b/include/drm/drm_bridge.h
index 3606e1a..4baca0d 100644
--- a/include/drm/drm_bridge.h
+++ b/include/drm/drm_bridge.h
@@ -541,7 +541,7 @@
 	 * The @get_modes callback is mostly intended to support non-probeable
 	 * displays such as many fixed panels. Bridges that support reading
 	 * EDID shall leave @get_modes unimplemented and implement the
-	 * &drm_bridge_funcs->get_edid callback instead.
+	 * &drm_bridge_funcs->edid_read callback instead.
 	 *
 	 * This callback is optional. Bridges that implement it shall set the
 	 * DRM_BRIDGE_OP_MODES flag in their &drm_bridge->ops.
@@ -687,7 +687,7 @@
 	/**
 	 * @DRM_BRIDGE_OP_EDID: The bridge can retrieve the EDID of the display
 	 * connected to its output. Bridges that set this flag shall implement
-	 * the &drm_bridge_funcs->get_edid callback.
+	 * the &drm_bridge_funcs->edid_read callback.
 	 */
 	DRM_BRIDGE_OP_EDID = BIT(1),
 	/**
diff --git a/include/drm/drm_fixed.h b/include/drm/drm_fixed.h
index 0c9f917..81572d3 100644
--- a/include/drm/drm_fixed.h
+++ b/include/drm/drm_fixed.h
@@ -71,7 +71,6 @@
 }
 
 #define DRM_FIXED_POINT		32
-#define DRM_FIXED_POINT_HALF	16
 #define DRM_FIXED_ONE		(1ULL << DRM_FIXED_POINT)
 #define DRM_FIXED_DECIMAL_MASK	(DRM_FIXED_ONE - 1)
 #define DRM_FIXED_DIGITS_MASK	(~DRM_FIXED_DECIMAL_MASK)
@@ -90,7 +89,7 @@
 
 static inline int drm_fixp2int_round(s64 a)
 {
-	return drm_fixp2int(a + (1 << (DRM_FIXED_POINT_HALF - 1)));
+	return drm_fixp2int(a + DRM_FIXED_ONE / 2);
 }
 
 static inline int drm_fixp2int_ceil(s64 a)