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Lin" , Sean Paul , Jason Chen , Fei Shao , , , , , Hsiao Chien Sung Subject: [PATCH v8 01/16] soc: mediatek: Disable 9-bit alpha in ETHDR Date: Thu, 6 Jun 2024 17:26:20 +0800 Message-ID: <20240606092635.27981-2-shawn.sung@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20240606092635.27981-1-shawn.sung@mediatek.com> References: <20240606092635.27981-1-shawn.sung@mediatek.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-TM-AS-Product-Ver: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-AS-Result: No-10--4.682500-8.000000 X-TMASE-MatchedRID: k8Xm6x9M5Ep8XbDftE7Is98tWTI1R8epwZLXS0hN8p1Zps+y1VXzqdnv 4KmarbUQ2tWL4y7HsTWfKyXIRVJFjAgpNt5EgFbMY1bQMCMvmn744jpewrcFYd9RlPzeVuQQHz5 ccRN5kLPRGkFt/fG/yCjzbr1UlDnYGAdnzrnkM48URSScn+QSXt0H8LFZNFG7doMssNsUwYXRsV AudlazscZEM68jstKz/J0+Gslj0VzkMCYT2R0qXKIl8iTbYhMhktJrxuof2amhvEPQS1e2QJ9C7 4QyK/10JJlSv7hgV4qAhOcaQrQ0U1GyRcoeF18qmKP0zzpTAeGwod8xOMKmvA1Aka/KIp/p X-TM-AS-User-Approved-Sender: No X-TM-AS-User-Blocked-Sender: No X-TMASE-Result: 10--4.682500-8.000000 X-TMASE-Version: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-SNTS-SMTP: 729B3508F30CB7C12E0921B6D46869951CC58D4DAEBC39425134DCD5BA83767E2000:8 X-MTK: N Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Hsiao Chien Sung When 9-bit alpha is enabled, its value will be converted from 0-255 to 0-256 (255 =3D not defined). This is designed for special HDR related calculation, which should be disabled by default, otherwise, alpha blending will not work correctly. Reviewed-by: AngeloGioacchino Del Regno Signed-off-by: Hsiao Chien Sung --- drivers/soc/mediatek/mtk-mmsys.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/soc/mediatek/mtk-mmsys.c b/drivers/soc/mediatek/mtk-mm= sys.c index f370f4ec4b88..938240714e54 100644 --- a/drivers/soc/mediatek/mtk-mmsys.c +++ b/drivers/soc/mediatek/mtk-mmsys.c @@ -236,6 +236,7 @@ void mtk_mmsys_mixer_in_config(struct device *dev, int = idx, bool alpha_sel, u16 =20 mtk_mmsys_update_bits(mmsys, MT8195_VDO1_MIXER_IN1_ALPHA + (idx - 1) * 4,= ~0, alpha << 16 | alpha, cmdq_pkt); + mtk_mmsys_update_bits(mmsys, MT8195_VDO1_HDR_TOP_CFG, BIT(15 + idx), 0, c= mdq_pkt); mtk_mmsys_update_bits(mmsys, MT8195_VDO1_HDR_TOP_CFG, BIT(19 + idx), alpha_sel << (19 + idx), cmdq_pkt); mtk_mmsys_update_bits(mmsys, MT8195_VDO1_MIXER_IN1_PAD + (idx - 1) * 4, --=20 2.18.0