linux-kernel - [PATCH RFC v3 26/37] drm/rockchip: inno_hdmi: Remove useless coeff

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Message-Id: <20231031-kms-hdmi-connector-state-v3-26-328b0fae43a7@kernel.org>
Date:   Tue, 31 Oct 2023 17:48:39 +0100
From:   Maxime Ripard <mripard@...nel.org>
To:     Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>, Emma Anholt <emma@...olt.net>,
        Jonathan Corbet <corbet@....net>,
        Sandy Huang <hjc@...k-chips.com>,
        Heiko Stübner <heiko@...ech.de>,
        Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Samuel Holland <samuel@...lland.org>
Cc:     Hans Verkuil <hverkuil@...all.nl>, dri-devel@...ts.freedesktop.org,
        linux-arm-kernel@...ts.infradead.org, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-media@...r.kernel.org,
        linux-rockchip@...ts.infradead.org, linux-sunxi@...ts.linux.dev,
        Maxime Ripard <mripard@...nel.org>
Subject: [PATCH RFC v3 26/37] drm/rockchip: inno_hdmi: Remove useless
 coeff_csc matrix

The coeff_csc matrix isn't used anymore, let's remove it.

Signed-off-by: Maxime Ripard <mripard@...nel.org>
---
 drivers/gpu/drm/rockchip/inno_hdmi.c | 70 ------------------------------------
 1 file changed, 70 deletions(-)

diff --git a/drivers/gpu/drm/rockchip/inno_hdmi.c b/drivers/gpu/drm/rockchip/inno_hdmi.c
index 35f44e556fcf..e4fe02b79a98 100644
--- a/drivers/gpu/drm/rockchip/inno_hdmi.c
+++ b/drivers/gpu/drm/rockchip/inno_hdmi.c
@@ -64,76 +64,6 @@ static struct inno_hdmi *connector_to_inno_hdmi(struct drm_connector *connector)
 	return container_of(connector, struct inno_hdmi, connector);
 }
 
-static const char coeff_csc[][24] = {
-	/*
-	 * YUV2RGB:601 SD mode(Y[16:235], UV[16:240], RGB[0:255]):
-	 *   R = 1.164*Y + 1.596*V - 204
-	 *   G = 1.164*Y - 0.391*U - 0.813*V + 154
-	 *   B = 1.164*Y + 2.018*U - 258
-	 */
-	{
-		0x04, 0xa7, 0x00, 0x00, 0x06, 0x62, 0x02, 0xcc,
-		0x04, 0xa7, 0x11, 0x90, 0x13, 0x40, 0x00, 0x9a,
-		0x04, 0xa7, 0x08, 0x12, 0x00, 0x00, 0x03, 0x02
-	},
-	/*
-	 * YUV2RGB:601 SD mode(YUV[0:255],RGB[0:255]):
-	 *   R = Y + 1.402*V - 248
-	 *   G = Y - 0.344*U - 0.714*V + 135
-	 *   B = Y + 1.772*U - 227
-	 */
-	{
-		0x04, 0x00, 0x00, 0x00, 0x05, 0x9b, 0x02, 0xf8,
-		0x04, 0x00, 0x11, 0x60, 0x12, 0xdb, 0x00, 0x87,
-		0x04, 0x00, 0x07, 0x16, 0x00, 0x00, 0x02, 0xe3
-	},
-	/*
-	 * YUV2RGB:709 HD mode(Y[16:235],UV[16:240],RGB[0:255]):
-	 *   R = 1.164*Y + 1.793*V - 248
-	 *   G = 1.164*Y - 0.213*U - 0.534*V + 77
-	 *   B = 1.164*Y + 2.115*U - 289
-	 */
-	{
-		0x04, 0xa7, 0x00, 0x00, 0x07, 0x2c, 0x02, 0xf8,
-		0x04, 0xa7, 0x10, 0xda, 0x12, 0x22, 0x00, 0x4d,
-		0x04, 0xa7, 0x08, 0x74, 0x00, 0x00, 0x03, 0x21
-	},
-
-	/*
-	 * RGB2YUV:601 SD mode:
-	 *   Cb = -0.291G - 0.148R + 0.439B + 128
-	 *   Y  = 0.504G  + 0.257R + 0.098B + 16
-	 *   Cr = -0.368G + 0.439R - 0.071B + 128
-	 */
-	{
-		0x11, 0x5f, 0x01, 0x82, 0x10, 0x23, 0x00, 0x80,
-		0x02, 0x1c, 0x00, 0xa1, 0x00, 0x36, 0x00, 0x1e,
-		0x11, 0x29, 0x10, 0x59, 0x01, 0x82, 0x00, 0x80
-	},
-	/*
-	 * RGB2YUV:709 HD mode:
-	 *   Cb = - 0.338G - 0.101R + 0.439B + 128
-	 *   Y  = 0.614G   + 0.183R + 0.062B + 16
-	 *   Cr = - 0.399G + 0.439R - 0.040B + 128
-	 */
-	{
-		0x11, 0x98, 0x01, 0xc1, 0x10, 0x28, 0x00, 0x80,
-		0x02, 0x74, 0x00, 0xbb, 0x00, 0x3f, 0x00, 0x10,
-		0x11, 0x5a, 0x10, 0x67, 0x01, 0xc1, 0x00, 0x80
-	},
-	/*
-	 * RGB[0:255]2RGB[16:235]:
-	 *   R' = R x (235-16)/255 + 16;
-	 *   G' = G x (235-16)/255 + 16;
-	 *   B' = B x (235-16)/255 + 16;
-	 */
-	{
-		0x00, 0x00, 0x03, 0x6F, 0x00, 0x00, 0x00, 0x10,
-		0x03, 0x6F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10,
-		0x00, 0x00, 0x00, 0x00, 0x03, 0x6F, 0x00, 0x10
-	},
-};
-
 static inline u8 hdmi_readb(struct inno_hdmi *hdmi, u16 offset)
 {
 	return readl_relaxed(hdmi->regs + (offset) * 0x04);

-- 
2.41.0