From patchwork Fri Jul 23 09:02:32 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?SmFzb24tSkggTGluICjmnpfnnb/npaUp?= X-Patchwork-Id: 12395661 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY, URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 11873C4338F for ; Fri, 23 Jul 2021 09:04:05 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id D771860E78 for ; Fri, 23 Jul 2021 09:04:04 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org D771860E78 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=eR5EosQkbQEYWUCFfE3xtudOvFwREE8lcdOpWhnKMAA=; b=h0ZN6+8BwTCPyK L6uFo3ryHPJjw4GNHc2AIRyv6hrmfHg2i/m2Hiq0Bw1u5P7dkjPyPQGcvP0J6SdY+AxAW8iWvT/xU vB/3qgnsW/1ELEUJSvS0kJIOsMIOA6KH+qLA/b8BPByLFwyNKA9WD0egcgkwE8wSpS9YNLJRhZbkE YCaORbV3W/LbT7UnwWwgJ82SIo2j501ddRe7kIV7RXYYSF3Rs7n9U6oJ2ei4lXvpmWWH9UvbpsvTZ MMkTIv614breX8zMOr1Td0V13/9z/p3q8c0ulnEJ70EEEUzw9+Uda6YYc6JqDXAI8FiqbsWVcyyvo 0tmKmwklBe6yUTHNHDDQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1m6r60-0041Lh-QB; Fri, 23 Jul 2021 09:03:52 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1m6r4s-0040vl-LA; Fri, 23 Jul 2021 09:02:45 +0000 X-UUID: 1d2670cc01554fb0819adb4af646bf78-20210723 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=cEZpSjnT4Ri3wWgicg4+SDlPrQddVuwiLhEJGmUqdx4=; b=ZSjt7ZL62I0BtsasldSpnToAJH9k7Dr0uQFV5AQ29Q5wyZIuFRJ/DfCpinHIWIsUOte8/uMsjxoAvJEjpS+MzncPnB2Z7fGdM1hpkkDQGzmcXIevb076j9wSnTCjagpZqAXQ4zaTnglCQ+JGMY80MIL8FEokwCOp21/x93o59lo=; X-UUID: 1d2670cc01554fb0819adb4af646bf78-20210723 Received: from mtkcas68.mediatek.inc [(172.29.94.19)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 503656926; Fri, 23 Jul 2021 02:02:39 -0700 Received: from MTKMBS02N1.mediatek.inc (172.21.101.77) by MTKMBS62N1.mediatek.inc (172.29.193.41) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 23 Jul 2021 02:02:38 -0700 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs02n1.mediatek.inc (172.21.101.77) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 23 Jul 2021 17:02:35 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Fri, 23 Jul 2021 17:02:36 +0800 From: jason-jh.lin To: Rob Herring , Matthias Brugger , Chun-Kuang Hu , "Philipp Zabel" , CC: David Airlie , Daniel Vetter , "Enric Balletbo i Serra" , , "jason-jh . lin" , Yongqiang Niu , , , , , , , Subject: [PATCH v4 5/6] drm/mediatek: add DSC support for mt8195 Date: Fri, 23 Jul 2021 17:02:32 +0800 Message-ID: <20210723090233.24007-6-jason-jh.lin@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20210723090233.24007-1-jason-jh.lin@mediatek.com> References: <20210723090233.24007-1-jason-jh.lin@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210723_020242_763747_353A388A X-CRM114-Status: GOOD ( 15.12 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org Add DSC into mtk_drm_ddp_comp to support for mt8195. DSC is designed for real-time systems with real-time compression, transmission, decompression and display. The DSC standard is a specification of the algorithms used for compressing and decompressing image display streams, including the specification of the syntax and semantics of the compressed video bit stream. Signed-off-by: jason-jh.lin --- This patch is base on [1] [1]add mt8195 SoC DRM binding - https://patchwork.kernel.org/project/linux-mediatek/list/?series=519597 --- drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 46 +++++++++++++++++++++ drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h | 1 + drivers/gpu/drm/mediatek/mtk_drm_drv.c | 2 + 3 files changed, 49 insertions(+) diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c index 75bc00e17fc4..6f4a9b8c9914 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c @@ -65,6 +65,12 @@ #define DITHER_ADD_LSHIFT_G(x) (((x) & 0x7) << 4) #define DITHER_ADD_RSHIFT_G(x) (((x) & 0x7) << 0) +#define DISP_REG_DSC_CON 0x0000 +#define DSC_EN BIT(0) +#define DSC_DUAL_INOUT BIT(2) +#define DSC_BYPASS BIT(4) +#define DSC_UFOE_SEL BIT(16) + struct mtk_ddp_comp_dev { struct clk *clk; void __iomem *regs; @@ -246,6 +252,35 @@ static void mtk_dither_stop(struct device *dev) writel_relaxed(0x0, priv->regs + DISP_DITHER_EN); } +static void mtk_dsc_config(struct device *dev, unsigned int w, + unsigned int h, unsigned int vrefresh, + unsigned int bpc, struct cmdq_pkt *cmdq_pkt) +{ + struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev); + + /* dsc bypass mode */ + mtk_ddp_write_mask(cmdq_pkt, DSC_BYPASS, &priv->cmdq_reg, priv->regs, + DISP_REG_DSC_CON, DSC_BYPASS); + mtk_ddp_write_mask(cmdq_pkt, DSC_UFOE_SEL, &priv->cmdq_reg, priv->regs, + DISP_REG_DSC_CON, DSC_UFOE_SEL); + mtk_ddp_write_mask(cmdq_pkt, DSC_DUAL_INOUT, &priv->cmdq_reg, priv->regs, + DISP_REG_DSC_CON, DSC_DUAL_INOUT); +} + +static void mtk_dsc_start(struct device *dev) +{ + struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev); + + writel_relaxed(DSC_EN, &priv->regs + DISP_REG_DSC_CON); +} + +static void mtk_dsc_stop(struct device *dev) +{ + struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev); + + writel_relaxed(0x0, priv->regs + DISP_REG_DSC_CON); +} + static const struct mtk_ddp_comp_funcs ddp_aal = { .clk_enable = mtk_ddp_clk_enable, .clk_disable = mtk_ddp_clk_disable, @@ -284,6 +319,14 @@ static const struct mtk_ddp_comp_funcs ddp_dpi = { .stop = mtk_dpi_stop, }; +static const struct mtk_ddp_comp_funcs ddp_dsc = { + .clk_enable = mtk_ddp_clk_enable, + .clk_disable = mtk_ddp_clk_disable, + .config = mtk_dsc_config, + .start = mtk_dsc_start, + .stop = mtk_dsc_stop, +}; + static const struct mtk_ddp_comp_funcs ddp_dsi = { .start = mtk_dsi_ddp_start, .stop = mtk_dsi_ddp_stop, @@ -356,6 +399,7 @@ static const char * const mtk_ddp_comp_stem[MTK_DDP_COMP_TYPE_MAX] = { [MTK_DISP_MUTEX] = "mutex", [MTK_DISP_OD] = "od", [MTK_DISP_BLS] = "bls", + [MTK_DISP_DSC] = "dsc", }; struct mtk_ddp_comp_match { @@ -374,6 +418,8 @@ static const struct mtk_ddp_comp_match mtk_ddp_matches[DDP_COMPONENT_ID_MAX] = { [DDP_COMPONENT_DITHER] = { MTK_DISP_DITHER, 0, &ddp_dither }, [DDP_COMPONENT_DPI0] = { MTK_DPI, 0, &ddp_dpi }, [DDP_COMPONENT_DPI1] = { MTK_DPI, 1, &ddp_dpi }, + [DDP_COMPONENT_DSC0] = { MTK_DISP_DSC, 0, &ddp_dsc }, + [DDP_COMPONENT_DSC1] = { MTK_DISP_DSC, 1, &ddp_dsc }, [DDP_COMPONENT_DSI0] = { MTK_DSI, 0, &ddp_dsi }, [DDP_COMPONENT_DSI1] = { MTK_DSI, 1, &ddp_dsi }, [DDP_COMPONENT_DSI2] = { MTK_DSI, 2, &ddp_dsi }, diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h index bb914d976cf5..661fb620e266 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h @@ -34,6 +34,7 @@ enum mtk_ddp_comp_type { MTK_DISP_MUTEX, MTK_DISP_OD, MTK_DISP_BLS, + MTK_DISP_DSC, MTK_DDP_COMP_TYPE_MAX, }; diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c index d6f6d1bdad85..0f6bb4bdc58a 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c @@ -446,6 +446,8 @@ static const struct of_device_id mtk_ddp_comp_dt_ids[] = { .data = (void *)MTK_DISP_GAMMA, }, { .compatible = "mediatek,mt8183-disp-dither", .data = (void *)MTK_DISP_DITHER }, + { .compatible = "mediatek,mt8195-disp-dsc", + .data = (void *)MTK_DISP_DSC }, { .compatible = "mediatek,mt8173-disp-ufoe", .data = (void *)MTK_DISP_UFOE }, { .compatible = "mediatek,mt2701-dsi",