From: Andrzej Hajda <a.hajda@samsung.com>
Date: Mon, 7 May 2018 11:29:28 +0200
Subject: drm/exynos/dsi: remove mode_set callback
Git-commit: e8929999fa718da5758ff877592f33fea368ca8a
Patch-mainline: v4.18-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

The callback was used only to copy provided mode to context for later
usage. Since the mode is always available from crtc atomic state this code
can be removed.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/exynos/exynos_drm_dsi.c |   40 ++++++++------------------------
 1 file changed, 10 insertions(+), 30 deletions(-)

--- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
@@ -270,7 +270,6 @@ struct exynos_dsi {
 	u32 lanes;
 	u32 mode_flags;
 	u32 format;
-	struct videomode vm;
 
 	int state;
 	struct drm_property *brightness;
@@ -881,30 +880,30 @@ static int exynos_dsi_init_link(struct e
 
 static void exynos_dsi_set_display_mode(struct exynos_dsi *dsi)
 {
-	struct videomode *vm = &dsi->vm;
+	struct drm_display_mode *m = &dsi->encoder.crtc->state->adjusted_mode;
 	unsigned int num_bits_resol = dsi->driver_data->num_bits_resol;
 	u32 reg;
 
 	if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO) {
 		reg = DSIM_CMD_ALLOW(0xf)
-			| DSIM_STABLE_VFP(vm->vfront_porch)
-			| DSIM_MAIN_VBP(vm->vback_porch);
+			| DSIM_STABLE_VFP(m->vsync_start - m->vdisplay)
+			| DSIM_MAIN_VBP(m->vtotal - m->vsync_end);
 		exynos_dsi_write(dsi, DSIM_MVPORCH_REG, reg);
 
-		reg = DSIM_MAIN_HFP(vm->hfront_porch)
-			| DSIM_MAIN_HBP(vm->hback_porch);
+		reg = DSIM_MAIN_HFP(m->hsync_start - m->hdisplay)
+			| DSIM_MAIN_HBP(m->htotal - m->hsync_end);
 		exynos_dsi_write(dsi, DSIM_MHPORCH_REG, reg);
 
-		reg = DSIM_MAIN_VSA(vm->vsync_len)
-			| DSIM_MAIN_HSA(vm->hsync_len);
+		reg = DSIM_MAIN_VSA(m->vsync_end - m->vsync_start)
+			| DSIM_MAIN_HSA(m->hsync_end - m->hsync_start);
 		exynos_dsi_write(dsi, DSIM_MSYNC_REG, reg);
 	}
-	reg =  DSIM_MAIN_HRESOL(vm->hactive, num_bits_resol) |
-		DSIM_MAIN_VRESOL(vm->vactive, num_bits_resol);
+	reg =  DSIM_MAIN_HRESOL(m->hdisplay, num_bits_resol) |
+		DSIM_MAIN_VRESOL(m->vdisplay, num_bits_resol);
 
 	exynos_dsi_write(dsi, DSIM_MDRESOL_REG, reg);
 
-	dev_dbg(dsi->dev, "LCD size = %dx%d\n", vm->hactive, vm->vactive);
+	dev_dbg(dsi->dev, "LCD size = %dx%d\n", m->hdisplay, m->vdisplay);
 }
 
 static void exynos_dsi_set_display_enable(struct exynos_dsi *dsi, bool enable)
@@ -1485,26 +1484,7 @@ static int exynos_dsi_create_connector(s
 	return 0;
 }
 
-static void exynos_dsi_mode_set(struct drm_encoder *encoder,
-				struct drm_display_mode *mode,
-				struct drm_display_mode *adjusted_mode)
-{
-	struct exynos_dsi *dsi = encoder_to_dsi(encoder);
-	struct videomode *vm = &dsi->vm;
-	struct drm_display_mode *m = adjusted_mode;
-
-	vm->hactive = m->hdisplay;
-	vm->vactive = m->vdisplay;
-	vm->vfront_porch = m->vsync_start - m->vdisplay;
-	vm->vback_porch = m->vtotal - m->vsync_end;
-	vm->vsync_len = m->vsync_end - m->vsync_start;
-	vm->hfront_porch = m->hsync_start - m->hdisplay;
-	vm->hback_porch = m->htotal - m->hsync_end;
-	vm->hsync_len = m->hsync_end - m->hsync_start;
-}
-
 static const struct drm_encoder_helper_funcs exynos_dsi_encoder_helper_funcs = {
-	.mode_set = exynos_dsi_mode_set,
 	.enable = exynos_dsi_enable,
 	.disable = exynos_dsi_disable,
 };