[PATCH 03/20] drm/armada: provide pitches from armada_drm_plane_calc_addrs()

[Russell King]

Provide the framebuffer pitches from armada_drm_plane_calc_addrs() as
well as the base addresses for each plane.  Since this is now about
more than just addresses, rename to armada_drm_plane_calc().

Signed-off-by: Russell King <rmk+kernel at armlinux.org.uk>
---
 drivers/gpu/drm/armada/armada_overlay.c |  8 ++++----
 drivers/gpu/drm/armada/armada_plane.c   | 22 ++++++++++++++--------
 drivers/gpu/drm/armada/armada_plane.h   |  3 ++-
 3 files changed, 20 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/drm/armada/armada_overlay.c b/drivers/gpu/drm/armada/armada_overlay.c
index e8c3bcc09d5c..f36f6fb919e7 100644
--- a/drivers/gpu/drm/armada/armada_overlay.c
+++ b/drivers/gpu/drm/armada/armada_overlay.c
@@ -130,10 +130,10 @@ static void armada_drm_overlay_plane_atomic_update(struct drm_plane *plane,
 	    old_state->src.y1 != state->src.y1 ||
 	    old_state->fb != state->fb) {
 		const struct drm_format_info *format;
-		u16 src_x;
+		u16 src_x, pitches[3];
 		u32 addrs[3];
 
-		armada_drm_plane_calc_addrs(state, addrs);
+		armada_drm_plane_calc(state, addrs, pitches);
 
 		armada_reg_queue_set(regs, idx, addrs[0],
 				     LCD_SPU_DMA_START_ADDR_Y0);
@@ -148,9 +148,9 @@ static void armada_drm_overlay_plane_atomic_update(struct drm_plane *plane,
 		armada_reg_queue_set(regs, idx, addrs[2],
 				     LCD_SPU_DMA_START_ADDR_V1);
 
-		val = state->fb->pitches[0] << 16 | state->fb->pitches[0];
+		val = pitches[0] << 16 | pitches[0];
 		armada_reg_queue_set(regs, idx, val, LCD_SPU_DMA_PITCH_YC);
-		val = state->fb->pitches[1] << 16 | state->fb->pitches[2];
+		val = pitches[1] << 16 | pitches[2];
 		armada_reg_queue_set(regs, idx, val, LCD_SPU_DMA_PITCH_UV);
 
 		cfg = CFG_DMA_FMT(drm_fb_to_armada_fb(state->fb)->fmt) |
diff --git a/drivers/gpu/drm/armada/armada_plane.c b/drivers/gpu/drm/armada/armada_plane.c
index c426c92c79d9..3c9414c56aca 100644
--- a/drivers/gpu/drm/armada/armada_plane.c
+++ b/drivers/gpu/drm/armada/armada_plane.c
@@ -35,7 +35,8 @@ static const uint32_t armada_primary_formats[] = {
 	DRM_FORMAT_BGR565,
 };
 
-void armada_drm_plane_calc_addrs(struct drm_plane_state *state, u32 addrs[3])
+void armada_drm_plane_calc(struct drm_plane_state *state, u32 addrs[3],
+	u16 pitches[3])
 {
 	struct drm_framebuffer *fb = state->fb;
 	const struct drm_format_info *format = fb->format;
@@ -53,37 +54,42 @@ void armada_drm_plane_calc_addrs(struct drm_plane_state *state, u32 addrs[3])
 
 	addrs[0] = addr + fb->offsets[0] + y * fb->pitches[0] +
 		   x * format->cpp[0];
+	pitches[0] = fb->pitches[0];
 
 	y /= format->vsub;
 	x /= format->hsub;
 
-	for (i = 1; i < num_planes; i++)
+	for (i = 1; i < num_planes; i++) {
 		addrs[i] = addr + fb->offsets[i] + y * fb->pitches[i] +
 			     x * format->cpp[i];
-	for (; i < 3; i++)
+		pitches[i] = fb->pitches[i];
+	}
+	for (; i < 3; i++) {
 		addrs[i] = 0;
+		pitches[i] = 0;
+	}
 }
 
 static unsigned armada_drm_crtc_calc_fb(struct drm_plane_state *state,
 	struct armada_regs *regs, bool interlaced)
 {
-	unsigned pitch = state->fb->pitches[0];
+	u16 pitches[3];
 	u32 addrs[3], addr_odd, addr_even;
 	unsigned i = 0;
 
-	armada_drm_plane_calc_addrs(state, addrs);
+	armada_drm_plane_calc(state, addrs, pitches);
 
 	addr_odd = addr_even = addrs[0];
 
 	if (interlaced) {
-		addr_even += pitch;
-		pitch *= 2;
+		addr_even += pitches[0];
+		pitches[0] *= 2;
 	}
 
 	/* write offset, base, and pitch */
 	armada_reg_queue_set(regs, i, addr_odd, LCD_CFG_GRA_START_ADDR0);
 	armada_reg_queue_set(regs, i, addr_even, LCD_CFG_GRA_START_ADDR1);
-	armada_reg_queue_mod(regs, i, pitch, 0xffff, LCD_CFG_GRA_PITCH);
+	armada_reg_queue_mod(regs, i, pitches[0], 0xffff, LCD_CFG_GRA_PITCH);
 
 	return i;
 }
diff --git a/drivers/gpu/drm/armada/armada_plane.h b/drivers/gpu/drm/armada/armada_plane.h
index 999a0bd3e512..98280beaaa44 100644
--- a/drivers/gpu/drm/armada/armada_plane.h
+++ b/drivers/gpu/drm/armada/armada_plane.h
@@ -1,7 +1,8 @@
 #ifndef ARMADA_PLANE_H
 #define ARMADA_PLANE_H
 
-void armada_drm_plane_calc_addrs(struct drm_plane_state *state, u32 addrs[3]);
+void armada_drm_plane_calc(struct drm_plane_state *state, u32 addrs[3],
+	u16 pitches[3]);
 int armada_drm_plane_prepare_fb(struct drm_plane *plane,
 	struct drm_plane_state *state);
 void armada_drm_plane_cleanup_fb(struct drm_plane *plane,
-- 
2.7.4