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From:   Neil Armstrong <narmstrong@baylibre.com>
To:     dri-devel@lists.freedesktop.org
Cc:     Neil Armstrong <narmstrong@baylibre.com>,
        linux-amlogic@lists.infradead.org,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH 2/3] drm/meson: move OSD scaler management into plane atomic update
Date:   Tue,  6 Nov 2018 10:40:01 +0100
Message-Id: <1541497202-20570-3-git-send-email-narmstrong@baylibre.com>
In-Reply-To: <1541497202-20570-1-git-send-email-narmstrong@baylibre.com>
References: <1541497202-20570-1-git-send-email-narmstrong@baylibre.com>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

In preparation to support the Primary Plane scaling, move the basic
OSD Interlace-Only scaler setup code into the primary plane atomic
update callback and handle the vsync scaler update like the overlay
plane scaling registers update.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
---
 drivers/gpu/drm/meson/meson_crtc.c  | 35 ++++++++++++++++------------
 drivers/gpu/drm/meson/meson_drv.h   | 10 ++++++++
 drivers/gpu/drm/meson/meson_plane.c | 39 ++++++++++++++++++++++++++++++-
 drivers/gpu/drm/meson/meson_vpp.c   | 46 -------------------------------------
 4 files changed, 68 insertions(+), 62 deletions(-)

diff --git a/drivers/gpu/drm/meson/meson_crtc.c b/drivers/gpu/drm/meson/meson_crtc.c
index 38686c9..d78168f 100644
--- a/drivers/gpu/drm/meson/meson_crtc.c
+++ b/drivers/gpu/drm/meson/meson_crtc.c
@@ -189,21 +189,26 @@ void meson_crtc_irq(struct meson_drm *priv)
 				priv->io_base + _REG(VIU_OSD1_BLK0_CFG_W3));
 		writel_relaxed(priv->viu.osd1_blk0_cfg[4],
 				priv->io_base + _REG(VIU_OSD1_BLK0_CFG_W4));
-
-		/* If output is interlace, make use of the Scaler */
-		if (priv->viu.osd1_interlace) {
-			struct drm_plane *plane = priv->primary_plane;
-			struct drm_plane_state *state = plane->state;
-			struct drm_rect dest = {
-				.x1 = state->crtc_x,
-				.y1 = state->crtc_y,
-				.x2 = state->crtc_x + state->crtc_w,
-				.y2 = state->crtc_y + state->crtc_h,
-			};
-
-			meson_vpp_setup_interlace_vscaler_osd1(priv, &dest);
-		} else
-			meson_vpp_disable_interlace_vscaler_osd1(priv);
+		writel_relaxed(priv->viu.osd_sc_ctrl0,
+				priv->io_base + _REG(VPP_OSD_SC_CTRL0));
+		writel_relaxed(priv->viu.osd_sc_i_wh_m1,
+				priv->io_base + _REG(VPP_OSD_SCI_WH_M1));
+		writel_relaxed(priv->viu.osd_sc_o_h_start_end,
+				priv->io_base + _REG(VPP_OSD_SCO_H_START_END));
+		writel_relaxed(priv->viu.osd_sc_o_v_start_end,
+				priv->io_base + _REG(VPP_OSD_SCO_V_START_END));
+		writel_relaxed(priv->viu.osd_sc_v_ini_phase,
+				priv->io_base + _REG(VPP_OSD_VSC_INI_PHASE));
+		writel_relaxed(priv->viu.osd_sc_v_phase_step,
+				priv->io_base + _REG(VPP_OSD_VSC_PHASE_STEP));
+		writel_relaxed(priv->viu.osd_sc_h_ini_phase,
+				priv->io_base + _REG(VPP_OSD_HSC_INI_PHASE));
+		writel_relaxed(priv->viu.osd_sc_h_phase_step,
+				priv->io_base + _REG(VPP_OSD_HSC_PHASE_STEP));
+		writel_relaxed(priv->viu.osd_sc_h_ctrl0,
+				priv->io_base + _REG(VPP_OSD_HSC_CTRL0));
+		writel_relaxed(priv->viu.osd_sc_v_ctrl0,
+				priv->io_base + _REG(VPP_OSD_VSC_CTRL0));
 
 		if (priv->canvas)
 			meson_canvas_config(priv->canvas, priv->canvas_id_osd1,
diff --git a/drivers/gpu/drm/meson/meson_drv.h b/drivers/gpu/drm/meson/meson_drv.h
index c971557..a955354 100644
--- a/drivers/gpu/drm/meson/meson_drv.h
+++ b/drivers/gpu/drm/meson/meson_drv.h
@@ -54,6 +54,16 @@ struct meson_drm {
 		uint32_t osd1_addr;
 		uint32_t osd1_stride;
 		uint32_t osd1_height;
+		uint32_t osd_sc_ctrl0;
+		uint32_t osd_sc_i_wh_m1;
+		uint32_t osd_sc_o_h_start_end;
+		uint32_t osd_sc_o_v_start_end;
+		uint32_t osd_sc_v_ini_phase;
+		uint32_t osd_sc_v_phase_step;
+		uint32_t osd_sc_h_ini_phase;
+		uint32_t osd_sc_h_phase_step;
+		uint32_t osd_sc_h_ctrl0;
+		uint32_t osd_sc_v_ctrl0;
 
 		bool vd1_enabled;
 		bool vd1_commit;
diff --git a/drivers/gpu/drm/meson/meson_plane.c b/drivers/gpu/drm/meson/meson_plane.c
index 51bec8e..f915a79 100644
--- a/drivers/gpu/drm/meson/meson_plane.c
+++ b/drivers/gpu/drm/meson/meson_plane.c
@@ -143,13 +143,50 @@ static void meson_plane_atomic_update(struct drm_plane *plane,
 		break;
 	};
 
+	/*
+	 * When the output is interlaced, the OSD must switch between
+	 * each field using the INTERLACE_SEL_ODD (0) of VIU_OSD1_BLK0_CFG_W0
+	 * at each vsync.
+	 * But the vertical scaler can provide such funtionnality if
+	 * is configured for 2:1 scaling with interlace options enabled.
+	 */
 	if (state->crtc->mode.flags & DRM_MODE_FLAG_INTERLACE) {
 		priv->viu.osd1_interlace = true;
 
 		dest.y1 /= 2;
 		dest.y2 /= 2;
-	} else
+
+		priv->viu.osd_sc_ctrl0 = BIT(3) | /* Enable scaler */
+					 BIT(2); /* Select OSD1 */
+
+		/* 2:1 scaling */
+		priv->viu.osd_sc_i_wh_m1 = ((drm_rect_width(&dest) - 1) << 16) |
+					   (drm_rect_height(&dest) - 1);
+		priv->viu.osd_sc_o_h_start_end = (dest.x1 << 16) | dest.x2;
+		priv->viu.osd_sc_o_v_start_end = (dest.y1 << 16) | dest.y2;
+
+		/* 2:1 vertical scaling values */
+		priv->viu.osd_sc_v_ini_phase = BIT(16);
+		priv->viu.osd_sc_v_phase_step = BIT(25);
+		priv->viu.osd_sc_v_ctrl0 =
+			(4 << 0) | /* osd_vsc_bank_length */
+			(4 << 3) | /* osd_vsc_top_ini_rcv_num0 */
+			(1 << 8) | /* osd_vsc_top_rpt_p0_num0 */
+			(6 << 11) | /* osd_vsc_bot_ini_rcv_num0 */
+			(2 << 16) | /* osd_vsc_bot_rpt_p0_num0 */
+			BIT(23)	| /* osd_prog_interlace */
+			BIT(24); /* Enable vertical scaler */
+
+		/* No horizontal scaling */
+		priv->viu.osd_sc_h_ini_phase = 0;
+		priv->viu.osd_sc_h_phase_step = 0;
+		priv->viu.osd_sc_h_ctrl0 = 0;
+	} else {
 		priv->viu.osd1_interlace = false;
+		priv->viu.osd_sc_ctrl0 = 0;
+		priv->viu.osd_sc_h_ctrl0 = 0;
+		priv->viu.osd_sc_v_ctrl0 = 0;
+	}
 
 	/*
 	 * The format of these registers is (x2 << 16 | x1),
diff --git a/drivers/gpu/drm/meson/meson_vpp.c b/drivers/gpu/drm/meson/meson_vpp.c
index 5dc24a9..f9efb43 100644
--- a/drivers/gpu/drm/meson/meson_vpp.c
+++ b/drivers/gpu/drm/meson/meson_vpp.c
@@ -51,52 +51,6 @@ void meson_vpp_setup_mux(struct meson_drm *priv, unsigned int mux)
 	writel(mux, priv->io_base + _REG(VPU_VIU_VENC_MUX_CTRL));
 }
 
-/*
- * When the output is interlaced, the OSD must switch between
- * each field using the INTERLACE_SEL_ODD (0) of VIU_OSD1_BLK0_CFG_W0
- * at each vsync.
- * But the vertical scaler can provide such funtionnality if
- * is configured for 2:1 scaling with interlace options enabled.
- */
-void meson_vpp_setup_interlace_vscaler_osd1(struct meson_drm *priv,
-					    struct drm_rect *input)
-{
-	writel_relaxed(BIT(3) /* Enable scaler */ |
-		       BIT(2), /* Select OSD1 */
-			priv->io_base + _REG(VPP_OSD_SC_CTRL0));
-
-	writel_relaxed(((drm_rect_width(input) - 1) << 16) |
-		       (drm_rect_height(input) - 1),
-			priv->io_base + _REG(VPP_OSD_SCI_WH_M1));
-	/* 2:1 scaling */
-	writel_relaxed(((input->x1) << 16) | (input->x2),
-			priv->io_base + _REG(VPP_OSD_SCO_H_START_END));
-	writel_relaxed(((input->y1 >> 1) << 16) | (input->y2 >> 1),
-			priv->io_base + _REG(VPP_OSD_SCO_V_START_END));
-
-	/* 2:1 scaling values */
-	writel_relaxed(BIT(16), priv->io_base + _REG(VPP_OSD_VSC_INI_PHASE));
-	writel_relaxed(BIT(25), priv->io_base + _REG(VPP_OSD_VSC_PHASE_STEP));
-
-	writel_relaxed(0, priv->io_base + _REG(VPP_OSD_HSC_CTRL0));
-
-	writel_relaxed((4 << 0) /* osd_vsc_bank_length */ |
-		       (4 << 3) /* osd_vsc_top_ini_rcv_num0 */ |
-		       (1 << 8) /* osd_vsc_top_rpt_p0_num0 */ |
-		       (6 << 11) /* osd_vsc_bot_ini_rcv_num0 */ |
-		       (2 << 16) /* osd_vsc_bot_rpt_p0_num0 */ |
-		       BIT(23)	/* osd_prog_interlace */ |
-		       BIT(24), /* Enable vertical scaler */
-			priv->io_base + _REG(VPP_OSD_VSC_CTRL0));
-}
-
-void meson_vpp_disable_interlace_vscaler_osd1(struct meson_drm *priv)
-{
-	writel_relaxed(0, priv->io_base + _REG(VPP_OSD_SC_CTRL0));
-	writel_relaxed(0, priv->io_base + _REG(VPP_OSD_VSC_CTRL0));
-	writel_relaxed(0, priv->io_base + _REG(VPP_OSD_HSC_CTRL0));
-}
-
 static unsigned int vpp_filter_coefs_4point_bspline[] = {
 	0x15561500, 0x14561600, 0x13561700, 0x12561800,
 	0x11551a00, 0x11541b00, 0x10541c00, 0x0f541d00,
-- 
2.7.4