From patchwork Wed May 4 09:14:33 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?TmFuY3kgTGluICjmnpfmrKPonqIp?= X-Patchwork-Id: 12837479 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 377AAC433F5 for ; Wed, 4 May 2022 09:16:56 +0000 (UTC) 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=2mb3ka58P6Uc0pfEEcE8R6RrCvpEw/PXs9Q+BILGUIs=; b=G/H0q4GRrGeiEA /ZUKu99KgOZSXRy2JLZA5JnGxH3MfqpJeqyojUnFEOI4RNog5xPoo61NwECCZENDMx8F7dxUhn+q4 5qnj+ce3vaLQb2h8EMYAJ452XuC1b1zayx5bbkTyPyN+/qa4lVJjB56+aj9m0/8G1Y9wv5wtJZc5t T4z0u4ePIbqqEtc/TqNAZnDQNhx+4Gs6EV9RKJXf8khRu2I6i3RgG8U8IPm7K0XRbV4W+Sdh+w1Ed dFU/IZR1P7iC1enUPmh7azlqEMheJUKSsYzu/O70B1snoeGAycGkFoOKMr8i+Yg+i+dmOVih+g4Yg vPsBCflQ9js5cGl5PSug==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nmB7p-009ka0-0R; Wed, 04 May 2022 09:16:49 +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 1nmB5z-009jOQ-CD; Wed, 04 May 2022 09:14:59 +0000 X-UUID: 388903af49744eef8c70d32c6e75d2ed-20220504 X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.4, REQID:66bb2e4f-aa29-4fcf-af8e-512e65189ff0, OB:0, LO B:0,IP:0,URL:8,TC:0,Content:-20,EDM:0,RT:0,SF:0,FILE:0,RULE:Release_Ham,AC TION:release,TS:-12 X-CID-META: VersionHash:faefae9, CLOUDID:a568ac2f-6199-437e-8ab4-9920b4bc5b76, C OID:IGNORED,Recheck:0,SF:nil,TC:nil,Content:0,EDM:-3,File:nil,QS:0,BEC:nil X-UUID: 388903af49744eef8c70d32c6e75d2ed-20220504 Received: from mtkcas67.mediatek.inc [(172.29.193.45)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 418027969; Wed, 04 May 2022 02:14:48 -0700 Received: from mtkmbs10n2.mediatek.inc (172.21.101.183) by MTKMBS62DR.mediatek.inc (172.29.94.18) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 4 May 2022 02:14:47 -0700 Received: from mtkmbs11n2.mediatek.inc (172.21.101.187) by mtkmbs10n2.mediatek.inc (172.21.101.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.792.3; Wed, 4 May 2022 17:14:45 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs11n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.792.3 via Frontend Transport; Wed, 4 May 2022 17:14:45 +0800 From: Nancy.Lin To: Rob Herring , Matthias Brugger , Chun-Kuang Hu , "Philipp Zabel" , , "AngeloGioacchino Del Regno" , CC: David Airlie , Daniel Vetter , "Nathan Chancellor" , Nick Desaulniers , "Nancy . Lin" , "jason-jh . lin" , Yongqiang Niu , , , , , , , , Subject: [PATCH v20 18/25] drm/mediatek: add ETHDR support for MT8195 Date: Wed, 4 May 2022 17:14:33 +0800 Message-ID: <20220504091440.2052-19-nancy.lin@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20220504091440.2052-1-nancy.lin@mediatek.com> References: <20220504091440.2052-1-nancy.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-20220504_021455_511883_D4508901 X-CRM114-Status: GOOD ( 27.20 ) 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 ETHDR is a part of ovl_adaptor. ETHDR is designed for HDR video and graphics conversion in the external display path. It handles multiple HDR input types and performs tone mapping, color space/color format conversion, and then combine different layers, output the required HDR or SDR signal to the subsequent display path. Signed-off-by: Nancy.Lin Reviewed-by: Chun-Kuang Hu Reviewed-by: AngeloGioacchino Del Regno --- drivers/gpu/drm/mediatek/Makefile | 1 + drivers/gpu/drm/mediatek/mtk_drm_drv.c | 1 + drivers/gpu/drm/mediatek/mtk_drm_drv.h | 1 + drivers/gpu/drm/mediatek/mtk_ethdr.c | 369 +++++++++++++++++++++++++ drivers/gpu/drm/mediatek/mtk_ethdr.h | 26 ++ 5 files changed, 398 insertions(+) create mode 100644 drivers/gpu/drm/mediatek/mtk_ethdr.c create mode 100644 drivers/gpu/drm/mediatek/mtk_ethdr.h diff --git a/drivers/gpu/drm/mediatek/Makefile b/drivers/gpu/drm/mediatek/Makefile index 6e604a933ed0..fb158a1e7f06 100644 --- a/drivers/gpu/drm/mediatek/Makefile +++ b/drivers/gpu/drm/mediatek/Makefile @@ -14,6 +14,7 @@ mediatek-drm-y := mtk_disp_aal.o \ mtk_drm_plane.o \ mtk_dsi.o \ mtk_dpi.o \ + mtk_ethdr.o \ mtk_mdp_rdma.o obj-$(CONFIG_DRM_MEDIATEK) += mediatek-drm.o diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c index aff079c06833..2554c7315b2a 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c @@ -835,6 +835,7 @@ static struct platform_driver * const mtk_drm_drivers[] = { &mtk_dpi_driver, &mtk_drm_platform_driver, &mtk_dsi_driver, + &mtk_ethdr_driver, &mtk_mdp_rdma_driver, }; diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.h b/drivers/gpu/drm/mediatek/mtk_drm_drv.h index 7b37b5cf9629..3b393e4b364a 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.h +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.h @@ -61,6 +61,7 @@ extern struct platform_driver mtk_disp_ovl_driver; extern struct platform_driver mtk_disp_rdma_driver; extern struct platform_driver mtk_dpi_driver; extern struct platform_driver mtk_dsi_driver; +extern struct platform_driver mtk_ethdr_driver; extern struct platform_driver mtk_mdp_rdma_driver; #endif /* MTK_DRM_DRV_H */ diff --git a/drivers/gpu/drm/mediatek/mtk_ethdr.c b/drivers/gpu/drm/mediatek/mtk_ethdr.c new file mode 100644 index 000000000000..2f882be87e4d --- /dev/null +++ b/drivers/gpu/drm/mediatek/mtk_ethdr.c @@ -0,0 +1,369 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2021 MediaTek Inc. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "mtk_drm_crtc.h" +#include "mtk_drm_ddp_comp.h" +#include "mtk_drm_drv.h" +#include "mtk_ethdr.h" + +#define MIX_INTEN 0x4 +#define MIX_FME_CPL_INTEN BIT(1) +#define MIX_INTSTA 0x8 +#define MIX_EN 0xc +#define MIX_RST 0x14 +#define MIX_ROI_SIZE 0x18 +#define MIX_DATAPATH_CON 0x1c +#define OUTPUT_NO_RND BIT(3) +#define SOURCE_RGB_SEL BIT(7) +#define BACKGROUND_RELAY (4 << 9) +#define MIX_ROI_BGCLR 0x20 +#define BGCLR_BLACK 0xff000000 +#define MIX_SRC_CON 0x24 +#define MIX_SRC_L0_EN BIT(0) +#define MIX_L_SRC_CON(n) (0x28 + 0x18 * (n)) +#define NON_PREMULTI_SOURCE (2 << 12) +#define MIX_L_SRC_SIZE(n) (0x30 + 0x18 * (n)) +#define MIX_L_SRC_OFFSET(n) (0x34 + 0x18 * (n)) +#define MIX_FUNC_DCM0 0x120 +#define MIX_FUNC_DCM1 0x124 +#define MIX_FUNC_DCM_ENABLE 0xffffffff + +#define HDR_VDO_FE_0804_HDR_DM_FE 0x804 +#define HDR_VDO_FE_0804_BYPASS_ALL 0xfd +#define HDR_GFX_FE_0204_GFX_HDR_FE 0x204 +#define HDR_GFX_FE_0204_BYPASS_ALL 0xfd +#define HDR_VDO_BE_0204_VDO_DM_BE 0x204 +#define HDR_VDO_BE_0204_BYPASS_ALL 0x7e + +#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 { + ETHDR_MIXER, + ETHDR_VDO_FE0, + ETHDR_VDO_FE1, + ETHDR_GFX_FE0, + ETHDR_GFX_FE1, + ETHDR_VDO_BE, + ETHDR_ADL_DS, + ETHDR_ID_MAX +}; + +struct mtk_ethdr_comp { + struct device *dev; + void __iomem *regs; + struct cmdq_client_reg cmdq_base; +}; + +struct mtk_ethdr { + struct mtk_ethdr_comp ethdr_comp[ETHDR_ID_MAX]; + struct clk_bulk_data ethdr_clk[ETHDR_CLK_NUM]; + struct device *mmsys_dev; + void (*vblank_cb)(void *data); + void *vblank_cb_data; + int irq; + struct reset_control *reset_ctl; +}; + +static const char * const ethdr_clk_str[] = { + "ethdr_top", + "mixer", + "vdo_fe0", + "vdo_fe1", + "gfx_fe0", + "gfx_fe1", + "vdo_be", + "adl_ds", + "vdo_fe0_async", + "vdo_fe1_async", + "gfx_fe0_async", + "gfx_fe1_async", + "vdo_be_async", +}; + +void mtk_ethdr_register_vblank_cb(struct device *dev, + void (*vblank_cb)(void *), + void *vblank_cb_data) +{ + struct mtk_ethdr *priv = dev_get_drvdata(dev); + + priv->vblank_cb = vblank_cb; + priv->vblank_cb_data = vblank_cb_data; +} + +void mtk_ethdr_unregister_vblank_cb(struct device *dev) +{ + struct mtk_ethdr *priv = dev_get_drvdata(dev); + + priv->vblank_cb = NULL; + priv->vblank_cb_data = NULL; +} + +void mtk_ethdr_enable_vblank(struct device *dev) +{ + struct mtk_ethdr *priv = dev_get_drvdata(dev); + + writel(MIX_FME_CPL_INTEN, priv->ethdr_comp[ETHDR_MIXER].regs + MIX_INTEN); +} + +void mtk_ethdr_disable_vblank(struct device *dev) +{ + struct mtk_ethdr *priv = dev_get_drvdata(dev); + + writel(0x0, priv->ethdr_comp[ETHDR_MIXER].regs + MIX_INTEN); +} + +static irqreturn_t mtk_ethdr_irq_handler(int irq, void *dev_id) +{ + struct mtk_ethdr *priv = dev_id; + + writel(0x0, priv->ethdr_comp[ETHDR_MIXER].regs + MIX_INTSTA); + + if (!priv->vblank_cb) + return IRQ_NONE; + + priv->vblank_cb(priv->vblank_cb_data); + + return IRQ_HANDLED; +} + +void mtk_ethdr_layer_config(struct device *dev, unsigned int idx, + struct mtk_plane_state *state, + struct cmdq_pkt *cmdq_pkt) +{ + struct mtk_ethdr *priv = dev_get_drvdata(dev); + struct mtk_ethdr_comp *mixer = &priv->ethdr_comp[ETHDR_MIXER]; + 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; + + dev_dbg(dev, "%s+ idx:%d", __func__, idx); + + if (idx >= 4) + return; + + if (!pending->enable) { + mtk_ddp_write(cmdq_pkt, 0, &mixer->cmdq_base, mixer->regs, MIX_L_SRC_SIZE(idx)); + return; + } + + if (state->base.fb && state->base.fb->format->has_alpha) + alpha_con = MIXER_ALPHA_AEN | MIXER_ALPHA; + + mtk_mmsys_mixer_in_config(priv->mmsys_dev, idx + 1, alpha_con ? false : true, + DEFAULT_9BIT_ALPHA, + pending->x & 1 ? MIXER_INX_MODE_EVEN_EXTEND : + MIXER_INX_MODE_BYPASS, align_width / 2 - 1, cmdq_pkt); + + mtk_ddp_write(cmdq_pkt, pending->height << 16 | align_width, &mixer->cmdq_base, + mixer->regs, MIX_L_SRC_SIZE(idx)); + mtk_ddp_write(cmdq_pkt, offset, &mixer->cmdq_base, mixer->regs, MIX_L_SRC_OFFSET(idx)); + mtk_ddp_write_mask(cmdq_pkt, alpha_con, &mixer->cmdq_base, mixer->regs, MIX_L_SRC_CON(idx), + 0x1ff); + mtk_ddp_write_mask(cmdq_pkt, BIT(idx), &mixer->cmdq_base, mixer->regs, MIX_SRC_CON, + BIT(idx)); +} + +void mtk_ethdr_config(struct device *dev, unsigned int w, + unsigned int h, unsigned int vrefresh, + unsigned int bpc, struct cmdq_pkt *cmdq_pkt) +{ + struct mtk_ethdr *priv = dev_get_drvdata(dev); + struct mtk_ethdr_comp *vdo_fe0 = &priv->ethdr_comp[ETHDR_VDO_FE0]; + struct mtk_ethdr_comp *vdo_fe1 = &priv->ethdr_comp[ETHDR_VDO_FE1]; + struct mtk_ethdr_comp *gfx_fe0 = &priv->ethdr_comp[ETHDR_GFX_FE0]; + struct mtk_ethdr_comp *gfx_fe1 = &priv->ethdr_comp[ETHDR_GFX_FE1]; + struct mtk_ethdr_comp *vdo_be = &priv->ethdr_comp[ETHDR_VDO_BE]; + struct mtk_ethdr_comp *mixer = &priv->ethdr_comp[ETHDR_MIXER]; + + dev_dbg(dev, "%s-w:%d, h:%d\n", __func__, w, h); + + mtk_ddp_write(cmdq_pkt, HDR_VDO_FE_0804_BYPASS_ALL, &vdo_fe0->cmdq_base, + vdo_fe0->regs, HDR_VDO_FE_0804_HDR_DM_FE); + + mtk_ddp_write(cmdq_pkt, HDR_VDO_FE_0804_BYPASS_ALL, &vdo_fe1->cmdq_base, + vdo_fe1->regs, HDR_VDO_FE_0804_HDR_DM_FE); + + mtk_ddp_write(cmdq_pkt, HDR_GFX_FE_0204_BYPASS_ALL, &gfx_fe0->cmdq_base, + gfx_fe0->regs, HDR_GFX_FE_0204_GFX_HDR_FE); + + mtk_ddp_write(cmdq_pkt, HDR_GFX_FE_0204_BYPASS_ALL, &gfx_fe1->cmdq_base, + gfx_fe1->regs, HDR_GFX_FE_0204_GFX_HDR_FE); + + mtk_ddp_write(cmdq_pkt, HDR_VDO_BE_0204_BYPASS_ALL, &vdo_be->cmdq_base, + vdo_be->regs, HDR_VDO_BE_0204_VDO_DM_BE); + + mtk_ddp_write(cmdq_pkt, MIX_FUNC_DCM_ENABLE, &mixer->cmdq_base, mixer->regs, MIX_FUNC_DCM0); + mtk_ddp_write(cmdq_pkt, MIX_FUNC_DCM_ENABLE, &mixer->cmdq_base, mixer->regs, MIX_FUNC_DCM1); + mtk_ddp_write(cmdq_pkt, h << 16 | w, &mixer->cmdq_base, mixer->regs, MIX_ROI_SIZE); + mtk_ddp_write(cmdq_pkt, BGCLR_BLACK, &mixer->cmdq_base, mixer->regs, MIX_ROI_BGCLR); + mtk_ddp_write(cmdq_pkt, NON_PREMULTI_SOURCE, &mixer->cmdq_base, mixer->regs, + MIX_L_SRC_CON(0)); + mtk_ddp_write(cmdq_pkt, NON_PREMULTI_SOURCE, &mixer->cmdq_base, mixer->regs, + MIX_L_SRC_CON(1)); + mtk_ddp_write(cmdq_pkt, NON_PREMULTI_SOURCE, &mixer->cmdq_base, mixer->regs, + MIX_L_SRC_CON(2)); + mtk_ddp_write(cmdq_pkt, NON_PREMULTI_SOURCE, &mixer->cmdq_base, mixer->regs, + MIX_L_SRC_CON(3)); + mtk_ddp_write(cmdq_pkt, 0x0, &mixer->cmdq_base, mixer->regs, MIX_L_SRC_SIZE(0)); + mtk_ddp_write(cmdq_pkt, OUTPUT_NO_RND | SOURCE_RGB_SEL | BACKGROUND_RELAY, + &mixer->cmdq_base, mixer->regs, MIX_DATAPATH_CON); + mtk_ddp_write_mask(cmdq_pkt, MIX_SRC_L0_EN, &mixer->cmdq_base, mixer->regs, + MIX_SRC_CON, MIX_SRC_L0_EN); + + mtk_mmsys_hdr_confing(priv->mmsys_dev, w / 2, h, cmdq_pkt); + mtk_mmsys_mixer_in_channel_swap(priv->mmsys_dev, 4, 0, cmdq_pkt); +} + +void mtk_ethdr_start(struct device *dev) +{ + struct mtk_ethdr *priv = dev_get_drvdata(dev); + struct mtk_ethdr_comp *mixer = &priv->ethdr_comp[ETHDR_MIXER]; + + writel(1, mixer->regs + MIX_EN); +} + +void mtk_ethdr_stop(struct device *dev) +{ + struct mtk_ethdr *priv = dev_get_drvdata(dev); + struct mtk_ethdr_comp *mixer = &priv->ethdr_comp[ETHDR_MIXER]; + + writel(0, mixer->regs + MIX_EN); + writel(1, mixer->regs + MIX_RST); + reset_control_reset(priv->reset_ctl); + writel(0, mixer->regs + MIX_RST); +} + +int mtk_ethdr_clk_enable(struct device *dev) +{ + int ret; + struct mtk_ethdr *priv = dev_get_drvdata(dev); + + ret = clk_bulk_prepare_enable(ETHDR_CLK_NUM, priv->ethdr_clk); + if (ret) + dev_err(dev, + "ethdr_clk prepare enable failed\n"); + return ret; +} + +void mtk_ethdr_clk_disable(struct device *dev) +{ + struct mtk_ethdr *priv = dev_get_drvdata(dev); + + clk_bulk_disable_unprepare(ETHDR_CLK_NUM, priv->ethdr_clk); +} + +static int mtk_ethdr_bind(struct device *dev, struct device *master, + void *data) +{ + struct mtk_ethdr *priv = dev_get_drvdata(dev); + + priv->mmsys_dev = data; + return 0; +} + +static void mtk_ethdr_unbind(struct device *dev, struct device *master, void *data) +{ +} + +static const struct component_ops mtk_ethdr_component_ops = { + .bind = mtk_ethdr_bind, + .unbind = mtk_ethdr_unbind, +}; + +static int mtk_ethdr_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct mtk_ethdr *priv; + int ret; + int i; + + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + for (i = 0; i < ETHDR_ID_MAX; i++) { + priv->ethdr_comp[i].dev = dev; + priv->ethdr_comp[i].regs = of_iomap(dev->of_node, i); +#if IS_REACHABLE(CONFIG_MTK_CMDQ) + ret = cmdq_dev_get_client_reg(dev, + &priv->ethdr_comp[i].cmdq_base, i); + if (ret) + dev_dbg(dev, "get mediatek,gce-client-reg fail!\n"); +#endif + dev_dbg(dev, "[DRM]regs:0x%p, node:%d\n", priv->ethdr_comp[i].regs, i); + } + + for (i = 0; i < ETHDR_CLK_NUM; i++) + priv->ethdr_clk[i].id = ethdr_clk_str[i]; + ret = devm_clk_bulk_get_optional(dev, ETHDR_CLK_NUM, priv->ethdr_clk); + if (ret) + return ret; + + priv->irq = platform_get_irq(pdev, 0); + if (priv->irq < 0) + priv->irq = 0; + + if (priv->irq) { + ret = devm_request_irq(dev, priv->irq, mtk_ethdr_irq_handler, + IRQF_TRIGGER_NONE, dev_name(dev), priv); + if (ret < 0) { + dev_err(dev, "Failed to request irq %d: %d\n", priv->irq, ret); + return ret; + } + } + + priv->reset_ctl = devm_reset_control_array_get_optional_exclusive(dev); + if (IS_ERR(priv->reset_ctl)) { + dev_err_probe(dev, PTR_ERR(priv->reset_ctl), "cannot get ethdr reset control\n"); + return PTR_ERR(priv->reset_ctl); + } + + platform_set_drvdata(pdev, priv); + + ret = component_add(dev, &mtk_ethdr_component_ops); + if (ret) + dev_notice(dev, "Failed to add component: %d\n", ret); + + return ret; +} + +static int mtk_ethdr_remove(struct platform_device *pdev) +{ + component_del(&pdev->dev, &mtk_ethdr_component_ops); + return 0; +} + +static const struct of_device_id mtk_ethdr_driver_dt_match[] = { + { .compatible = "mediatek,mt8195-disp-ethdr"}, + {}, +}; + +MODULE_DEVICE_TABLE(of, mtk_ethdr_driver_dt_match); + +struct platform_driver mtk_ethdr_driver = { + .probe = mtk_ethdr_probe, + .remove = mtk_ethdr_remove, + .driver = { + .name = "mediatek-disp-ethdr", + .owner = THIS_MODULE, + .of_match_table = mtk_ethdr_driver_dt_match, + }, +}; diff --git a/drivers/gpu/drm/mediatek/mtk_ethdr.h b/drivers/gpu/drm/mediatek/mtk_ethdr.h new file mode 100644 index 000000000000..db806d206d9e --- /dev/null +++ b/drivers/gpu/drm/mediatek/mtk_ethdr.h @@ -0,0 +1,26 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (c) 2021 MediaTek Inc. + */ + +#ifndef __MTK_ETHDR_H__ +#define __MTK_ETHDR_H__ + +void mtk_ethdr_start(struct device *dev); +void mtk_ethdr_stop(struct device *dev); +int mtk_ethdr_clk_enable(struct device *dev); +void mtk_ethdr_clk_disable(struct device *dev); +void mtk_ethdr_config(struct device *dev, unsigned int w, + unsigned int h, unsigned int vrefresh, + unsigned int bpc, struct cmdq_pkt *cmdq_pkt); +void mtk_ethdr_layer_config(struct device *dev, unsigned int idx, + struct mtk_plane_state *state, + struct cmdq_pkt *cmdq_pkt); +void mtk_ethdr_register_vblank_cb(struct device *dev, + void (*vblank_cb)(void *), + void *vblank_cb_data); +void mtk_ethdr_unregister_vblank_cb(struct device *dev); +void mtk_ethdr_enable_vblank(struct device *dev); +void mtk_ethdr_disable_vblank(struct device *dev); +#endif +