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Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.15.0 Subject: Re: [PATCH 07/15] drm/mediatek: Support alpha blending in VDOSYS1 Content-Language: en-US To: Hsiao Chien Sung , Chun-Kuang Hu , Philipp Zabel , David Airlie , Daniel Vetter , Matthias Brugger , Jassi Brar Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, Project_Global_Chrome_Upstream_Group@mediatek.com, Singo Chang , Nancy Lin , Jason-JH Lin References: <20230823151332.28811-1-shawn.sung@mediatek.com> <20230823151332.28811-8-shawn.sung@mediatek.com> From: AngeloGioacchino Del Regno In-Reply-To: <20230823151332.28811-8-shawn.sung@mediatek.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230907_051542_601036_E327D87F X-CRM114-Status: GOOD ( 15.01 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Il 23/08/23 17:13, Hsiao Chien Sung ha scritto: > Support premultiply and coverage alpha blending modes. > > Signed-off-by: Hsiao Chien Sung > --- > drivers/gpu/drm/mediatek/mtk_ethdr.c | 50 +++++++++++++++++++++------- > 1 file changed, 38 insertions(+), 12 deletions(-) > > diff --git a/drivers/gpu/drm/mediatek/mtk_ethdr.c b/drivers/gpu/drm/mediatek/mtk_ethdr.c > index 73dc4da3ba3b..3058c122a4c3 100644 > --- a/drivers/gpu/drm/mediatek/mtk_ethdr.c > +++ b/drivers/gpu/drm/mediatek/mtk_ethdr.c > @@ -5,6 +5,7 @@ > > #include > #include > +#include > #include > #include > #include > @@ -35,6 +36,7 @@ > #define MIX_SRC_L0_EN BIT(0) > #define MIX_L_SRC_CON(n) (0x28 + 0x18 * (n)) > #define NON_PREMULTI_SOURCE (2 << 12) > +#define PREMULTI_SOURCE (3 << 12) > #define MIX_L_SRC_SIZE(n) (0x30 + 0x18 * (n)) > #define MIX_L_SRC_OFFSET(n) (0x34 + 0x18 * (n)) > #define MIX_FUNC_DCM0 0x120 > @@ -50,9 +52,7 @@ > > #define MIXER_INX_MODE_BYPASS 0 > #define MIXER_INX_MODE_EVEN_EXTEND 1 > -#define DEFAULT_9BIT_ALPHA 0x100 > #define MIXER_ALPHA_AEN BIT(8) > -#define MIXER_ALPHA 0xff > #define ETHDR_CLK_NUM 13 > > enum mtk_ethdr_comp_id { > @@ -153,33 +153,59 @@ void mtk_ethdr_layer_config(struct device *dev, unsigned int idx, > struct mtk_plane_pending_state *pending = &state->pending; > unsigned int offset = (pending->x & 1) << 31 | pending->y << 16 | pending->x; > unsigned int align_width = ALIGN_DOWN(pending->width, 2); > - unsigned int alpha_con = 0; > + unsigned int mix_con = NON_PREMULTI_SOURCE; > + bool replace_src_a = false; > + > + union format { > + unsigned int raw; > + char str[5]; Can we please use fixed size variables? u32 raw; u8 str[5]; > + } format; > Regards, Angelo _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel