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From: Christoph Manszewski <c.manszewski@samsung.com>
To: dri-devel@lists.freedesktop.org
Cc: Christoph Manszewski <c.manszewski@samsung.com>,
	Inki Dae <inki.dae@samsung.com>,
	Joonyoung Shim <jy0922.shim@samsung.com>,
	Seung-Woo Kim <sw0312.kim@samsung.com>,
	Kyungmin Park <kyungmin.park@samsung.com>,
	David Airlie <airlied@linux.ie>, Kukjin Kim <kgene@kernel.org>,
	Krzysztof Kozlowski <krzk@kernel.org>,
	linux-arm-kernel@lists.infradead.org,
	linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
	Marek Szyprowski <m.szyprowski@samsung.com>,
	Andrzej Hajda <a.hajda@samsung.com>
Subject: [PATCH 2/2] drm/exynos: mixer: Fix color range setting
Date: Wed, 28 Nov 2018 16:32:12 +0100	[thread overview]
Message-ID: <1543419132-16099-3-git-send-email-c.manszewski@samsung.com> (raw)
In-Reply-To: <1543419132-16099-1-git-send-email-c.manszewski@samsung.com>

Color format and color range was set based on resolution. Change that,
by splitting range and format. Leave color format setting as it is,
set color range based on drm_display_mode using
drm_default_quant_range helper function.

Tested on Odroid-U3 with Exynos 4412 CPU, kernel next-20181128
using modetest.

Signed-off-by: Christoph Manszewski <c.manszewski@samsung.com>
---
 drivers/gpu/drm/exynos/exynos_mixer.c | 17 ++++++++++++-----
 drivers/gpu/drm/exynos/regs-mixer.h   |  9 +++++----
 2 files changed, 17 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c
index bcc26c10095a..2a25822bd6a1 100644
--- a/drivers/gpu/drm/exynos/exynos_mixer.c
+++ b/drivers/gpu/drm/exynos/exynos_mixer.c
@@ -381,14 +381,16 @@ static void mixer_cfg_scan(struct mixer_context *ctx, int width, int height)
 	mixer_reg_writemask(ctx, MXR_CFG, val, MXR_CFG_SCAN_MASK);
 }
 
-static void mixer_cfg_rgb_fmt(struct mixer_context *ctx, unsigned int height)
+static void mixer_cfg_rgb_fmt(struct mixer_context *ctx, struct drm_display_mode *mode)
 {
+	enum hdmi_quantization_range range = drm_default_rgb_quant_range(mode);
 	u32 val;
 
-	if (height < 720) {
-		val = MXR_CFG_RGB601_0_255;
+	if (mode->vdisplay < 720) {
+		val = MXR_CFG_RGB601;
 	} else {
-		val = MXR_CFG_RGB709_16_235;
+		val = MXR_CFG_RGB709;
+
 		/* Configure the BT.709 CSC matrix for full range RGB. */
 		mixer_reg_write(ctx, MXR_CM_COEFF_Y,
 			MXR_CSC_CT( 0.184,  0.614,  0.063) |
@@ -399,6 +401,11 @@ static void mixer_cfg_rgb_fmt(struct mixer_context *ctx, unsigned int height)
 			MXR_CSC_CT( 0.440, -0.399, -0.040));
 	}
 
+	if (range == HDMI_QUANTIZATION_RANGE_FULL)
+		val |= MXR_CFG_QUANT_RANGE_FULL;
+	else
+		val |= MXR_CFG_QUANT_RANGE_LIMITED;
+
 	mixer_reg_writemask(ctx, MXR_CFG, val, MXR_CFG_RGB_FMT_MASK);
 }
 
@@ -455,7 +462,7 @@ static void mixer_commit(struct mixer_context *ctx)
 	struct drm_display_mode *mode = &ctx->crtc->base.state->adjusted_mode;
 
 	mixer_cfg_scan(ctx, mode->hdisplay, mode->vdisplay);
-	mixer_cfg_rgb_fmt(ctx, mode->vdisplay);
+	mixer_cfg_rgb_fmt(ctx, mode);
 	mixer_run(ctx);
 }
 
diff --git a/drivers/gpu/drm/exynos/regs-mixer.h b/drivers/gpu/drm/exynos/regs-mixer.h
index d2b8194a07bf..5ff095b0c1b3 100644
--- a/drivers/gpu/drm/exynos/regs-mixer.h
+++ b/drivers/gpu/drm/exynos/regs-mixer.h
@@ -85,10 +85,11 @@
 /* bits for MXR_CFG */
 #define MXR_CFG_LAYER_UPDATE		(1 << 31)
 #define MXR_CFG_LAYER_UPDATE_COUNT_MASK (3 << 29)
-#define MXR_CFG_RGB601_0_255		(0 << 9)
-#define MXR_CFG_RGB601_16_235		(1 << 9)
-#define MXR_CFG_RGB709_0_255		(2 << 9)
-#define MXR_CFG_RGB709_16_235		(3 << 9)
+#define MXR_CFG_QUANT_RANGE_FULL	(0 << 9)
+#define MXR_CFG_QUANT_RANGE_LIMITED	(1 << 9)
+#define MXR_CFG_RGB601			(0 << 10)
+#define MXR_CFG_RGB709			(1 << 10)
+
 #define MXR_CFG_RGB_FMT_MASK		0x600
 #define MXR_CFG_OUT_YUV444		(0 << 8)
 #define MXR_CFG_OUT_RGB888		(1 << 8)
-- 
2.7.4


      parent reply	other threads:[~2018-11-28 15:32 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CGME20181128153231eucas1p1bd79250c2b5170c84e5614d22070826b@eucas1p1.samsung.com>
2018-11-28 15:32 ` [PATCH 0/2] drm/exynos: mixer: Fix color format and " Christoph Manszewski
     [not found]   ` <CGME20181128153233eucas1p2e5224bacb69616fdd794751593dc1629@eucas1p2.samsung.com>
2018-11-28 15:32     ` [PATCH 1/2] drm/exynos: mixer: Fix color format setting Christoph Manszewski
     [not found]   ` <CGME20181128153235eucas1p192a346be6aa9ca28a1000238db4c6fc8@eucas1p1.samsung.com>
2018-11-28 15:32     ` Christoph Manszewski [this message]

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