From mboxrd@z Thu Jan 1 00:00:00 1970 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=-8.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham 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 67BEBC1975A for ; Wed, 25 Mar 2020 16:16:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2940B20409 for ; Wed, 25 Mar 2020 16:16:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727854AbgCYQQc (ORCPT ); Wed, 25 Mar 2020 12:16:32 -0400 Received: from mx2.suse.de ([195.135.220.15]:60358 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727666AbgCYQQc (ORCPT ); Wed, 25 Mar 2020 12:16:32 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 3C507AC58; Wed, 25 Mar 2020 16:16:28 +0000 (UTC) Subject: Re: [PATCH v12 4/5] soc / drm: mediatek: Move routing control to mmsys device To: Enric Balletbo i Serra , robh+dt@kernel.org, mark.rutland@arm.com, ck.hu@mediatek.com, p.zabel@pengutronix.de, airlied@linux.ie, mturquette@baylibre.com, sboyd@kernel.org, ulrich.hecht+renesas@gmail.com, laurent.pinchart@ideasonboard.com Cc: Allison Randal , Matthias Brugger , wens@csie.org, linux-media@vger.kernel.org, sean.wang@mediatek.com, hsinyi@chromium.org, rdunlap@infradead.org, Greg Kroah-Hartman , Kate Stewart , dri-devel@lists.freedesktop.org, Thomas Gleixner , Weiyi Lu , Seiya Wang , Andrew-CT Chen , linux-clk@vger.kernel.org, linux-mediatek@lists.infradead.org, Daniel Vetter , linux-arm-kernel@lists.infradead.org, matthias.bgg@kernel.org, Minghsiu Tsai , frank-w@public-files.de, devicetree@vger.kernel.org, Mauro Carvalho Chehab , Collabora Kernel ML , Houlong Wei , linux-kernel@vger.kernel.org, mtk01761 , Richard Fontana References: <20200311165322.1594233-1-enric.balletbo@collabora.com> <20200311165322.1594233-5-enric.balletbo@collabora.com> From: Matthias Brugger Autocrypt: addr=mbrugger@suse.com; prefer-encrypt=mutual; keydata= mQINBFP1zgUBEAC21D6hk7//0kOmsUrE3eZ55kjc9DmFPKIz6l4NggqwQjBNRHIMh04BbCMY fL3eT7ZsYV5nur7zctmJ+vbszoOASXUpfq8M+S5hU2w7sBaVk5rpH9yW8CUWz2+ZpQXPJcFa OhLZuSKB1F5JcvLbETRjNzNU7B3TdS2+zkgQQdEyt7Ij2HXGLJ2w+yG2GuR9/iyCJRf10Okq gTh//XESJZ8S6KlOWbLXRE+yfkKDXQx2Jr1XuVvM3zPqH5FMg8reRVFsQ+vI0b+OlyekT/Xe 0Hwvqkev95GG6x7yseJwI+2ydDH6M5O7fPKFW5mzAdDE2g/K9B4e2tYK6/rA7Fq4cqiAw1+u EgO44+eFgv082xtBez5WNkGn18vtw0LW3ESmKh19u6kEGoi0WZwslCNaGFrS4M7OH+aOJeqK fx5dIv2CEbxc6xnHY7dwkcHikTA4QdbdFeUSuj4YhIZ+0QlDVtS1QEXyvZbZky7ur9rHkZvP 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<02290a21-7392-a2cf-576c-215091ec05e8@suse.com> Date: Wed, 25 Mar 2020 17:16:25 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.5.0 MIME-Version: 1.0 In-Reply-To: <20200311165322.1594233-5-enric.balletbo@collabora.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-clk-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org On 11/03/2020 17:53, Enric Balletbo i Serra wrote: > Provide a mtk_mmsys_ddp_connect() and mtk_mmsys_disconnect() functions to > replace mtk_ddp_add_comp_to_path() and mtk_ddp_remove_comp_from_path(). > Those functions will allow DRM driver and others to control the data > path routing. > > Signed-off-by: Enric Balletbo i Serra > Reviewed-by: Matthias Brugger > Reviewed-by: CK Hu > Acked-by: CK Hu This patch does not apply against v5.6-rc1. Please rebase as this is a quite big patch and it won't be easy to do that by hand. Regards, Matthias > --- > > Changes in v12: None > Changes in v10: > - Select CONFIG_MTK_MMSYS (CK) > - Pass device pointer of mmsys device instead of config regs (CK) > > Changes in v9: > - Introduced a new patch to move routing control into mmsys driver. > - Removed the patch to use regmap as is not needed anymore. > > Changes in v8: None > Changes in v7: None > > drivers/gpu/drm/mediatek/Kconfig | 1 + > drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 19 +- > drivers/gpu/drm/mediatek/mtk_drm_ddp.c | 256 ---------------------- > drivers/gpu/drm/mediatek/mtk_drm_ddp.h | 7 - > drivers/gpu/drm/mediatek/mtk_drm_drv.c | 14 +- > drivers/gpu/drm/mediatek/mtk_drm_drv.h | 2 +- > drivers/soc/mediatek/mtk-mmsys.c | 279 ++++++++++++++++++++++++ > include/linux/soc/mediatek/mtk-mmsys.h | 20 ++ > 8 files changed, 316 insertions(+), 282 deletions(-) > create mode 100644 include/linux/soc/mediatek/mtk-mmsys.h > > diff --git a/drivers/gpu/drm/mediatek/Kconfig b/drivers/gpu/drm/mediatek/Kconfig > index fa5ffc4fe823..c420f5a3d33b 100644 > --- a/drivers/gpu/drm/mediatek/Kconfig > +++ b/drivers/gpu/drm/mediatek/Kconfig > @@ -11,6 +11,7 @@ config DRM_MEDIATEK > select DRM_MIPI_DSI > select DRM_PANEL > select MEMORY > + select MTK_MMSYS > select MTK_SMI > select VIDEOMODE_HELPERS > help > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c > index 0e05683d7b53..579a5a5d4472 100644 > --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c > +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c > @@ -6,6 +6,7 @@ > #include > #include > #include > +#include > > #include > #include > @@ -28,7 +29,7 @@ > * @enabled: records whether crtc_enable succeeded > * @planes: array of 4 drm_plane structures, one for each overlay plane > * @pending_planes: whether any plane has pending changes to be applied > - * @config_regs: memory mapped mmsys configuration register space > + * @mmsys_dev: pointer to the mmsys device for configuration registers > * @mutex: handle to one of the ten disp_mutex streams > * @ddp_comp_nr: number of components in ddp_comp > * @ddp_comp: array of pointers the mtk_ddp_comp structures used by this crtc > @@ -50,7 +51,7 @@ struct mtk_drm_crtc { > u32 cmdq_event; > #endif > > - void __iomem *config_regs; > + struct device *mmsys_dev; > struct mtk_disp_mutex *mutex; > unsigned int ddp_comp_nr; > struct mtk_ddp_comp **ddp_comp; > @@ -296,9 +297,9 @@ static int mtk_crtc_ddp_hw_init(struct mtk_drm_crtc *mtk_crtc) > } > > for (i = 0; i < mtk_crtc->ddp_comp_nr - 1; i++) { > - mtk_ddp_add_comp_to_path(mtk_crtc->config_regs, > - mtk_crtc->ddp_comp[i]->id, > - mtk_crtc->ddp_comp[i + 1]->id); > + mtk_mmsys_ddp_connect(mtk_crtc->mmsys_dev, > + mtk_crtc->ddp_comp[i]->id, > + mtk_crtc->ddp_comp[i + 1]->id); > mtk_disp_mutex_add_comp(mtk_crtc->mutex, > mtk_crtc->ddp_comp[i]->id); > } > @@ -355,9 +356,9 @@ static void mtk_crtc_ddp_hw_fini(struct mtk_drm_crtc *mtk_crtc) > mtk_crtc->ddp_comp[i]->id); > mtk_disp_mutex_disable(mtk_crtc->mutex); > for (i = 0; i < mtk_crtc->ddp_comp_nr - 1; i++) { > - mtk_ddp_remove_comp_from_path(mtk_crtc->config_regs, > - mtk_crtc->ddp_comp[i]->id, > - mtk_crtc->ddp_comp[i + 1]->id); > + mtk_mmsys_ddp_disconnect(mtk_crtc->mmsys_dev, > + mtk_crtc->ddp_comp[i]->id, > + mtk_crtc->ddp_comp[i + 1]->id); > mtk_disp_mutex_remove_comp(mtk_crtc->mutex, > mtk_crtc->ddp_comp[i]->id); > } > @@ -761,7 +762,7 @@ int mtk_drm_crtc_create(struct drm_device *drm_dev, > if (!mtk_crtc) > return -ENOMEM; > > - mtk_crtc->config_regs = priv->config_regs; > + mtk_crtc->mmsys_dev = priv->mmsys_dev; > mtk_crtc->ddp_comp_nr = path_len; > mtk_crtc->ddp_comp = devm_kmalloc_array(dev, mtk_crtc->ddp_comp_nr, > sizeof(*mtk_crtc->ddp_comp), > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c > index b885f60f474c..014c1bbe1df2 100644 > --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c > +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c > @@ -13,26 +13,6 @@ > #include "mtk_drm_ddp.h" > #include "mtk_drm_ddp_comp.h" > > -#define DISP_REG_CONFIG_DISP_OVL0_MOUT_EN 0x040 > -#define DISP_REG_CONFIG_DISP_OVL1_MOUT_EN 0x044 > -#define DISP_REG_CONFIG_DISP_OD_MOUT_EN 0x048 > -#define DISP_REG_CONFIG_DISP_GAMMA_MOUT_EN 0x04c > -#define DISP_REG_CONFIG_DISP_UFOE_MOUT_EN 0x050 > -#define DISP_REG_CONFIG_DISP_COLOR0_SEL_IN 0x084 > -#define DISP_REG_CONFIG_DISP_COLOR1_SEL_IN 0x088 > -#define DISP_REG_CONFIG_DSIE_SEL_IN 0x0a4 > -#define DISP_REG_CONFIG_DSIO_SEL_IN 0x0a8 > -#define DISP_REG_CONFIG_DPI_SEL_IN 0x0ac > -#define DISP_REG_CONFIG_DISP_RDMA2_SOUT 0x0b8 > -#define DISP_REG_CONFIG_DISP_RDMA0_SOUT_EN 0x0c4 > -#define DISP_REG_CONFIG_DISP_RDMA1_SOUT_EN 0x0c8 > -#define DISP_REG_CONFIG_MMSYS_CG_CON0 0x100 > - > -#define DISP_REG_CONFIG_DISP_OVL_MOUT_EN 0x030 > -#define DISP_REG_CONFIG_OUT_SEL 0x04c > -#define DISP_REG_CONFIG_DSI_SEL 0x050 > -#define DISP_REG_CONFIG_DPI_SEL 0x064 > - > #define MT2701_DISP_MUTEX0_MOD0 0x2c > #define MT2701_DISP_MUTEX0_SOF0 0x30 > > @@ -94,48 +74,6 @@ > #define MUTEX_SOF_DSI2 5 > #define MUTEX_SOF_DSI3 6 > > -#define OVL0_MOUT_EN_COLOR0 0x1 > -#define OD_MOUT_EN_RDMA0 0x1 > -#define OD1_MOUT_EN_RDMA1 BIT(16) > -#define UFOE_MOUT_EN_DSI0 0x1 > -#define COLOR0_SEL_IN_OVL0 0x1 > -#define OVL1_MOUT_EN_COLOR1 0x1 > -#define GAMMA_MOUT_EN_RDMA1 0x1 > -#define RDMA0_SOUT_DPI0 0x2 > -#define RDMA0_SOUT_DPI1 0x3 > -#define RDMA0_SOUT_DSI1 0x1 > -#define RDMA0_SOUT_DSI2 0x4 > -#define RDMA0_SOUT_DSI3 0x5 > -#define RDMA1_SOUT_DPI0 0x2 > -#define RDMA1_SOUT_DPI1 0x3 > -#define RDMA1_SOUT_DSI1 0x1 > -#define RDMA1_SOUT_DSI2 0x4 > -#define RDMA1_SOUT_DSI3 0x5 > -#define RDMA2_SOUT_DPI0 0x2 > -#define RDMA2_SOUT_DPI1 0x3 > -#define RDMA2_SOUT_DSI1 0x1 > -#define RDMA2_SOUT_DSI2 0x4 > -#define RDMA2_SOUT_DSI3 0x5 > -#define DPI0_SEL_IN_RDMA1 0x1 > -#define DPI0_SEL_IN_RDMA2 0x3 > -#define DPI1_SEL_IN_RDMA1 (0x1 << 8) > -#define DPI1_SEL_IN_RDMA2 (0x3 << 8) > -#define DSI0_SEL_IN_RDMA1 0x1 > -#define DSI0_SEL_IN_RDMA2 0x4 > -#define DSI1_SEL_IN_RDMA1 0x1 > -#define DSI1_SEL_IN_RDMA2 0x4 > -#define DSI2_SEL_IN_RDMA1 (0x1 << 16) > -#define DSI2_SEL_IN_RDMA2 (0x4 << 16) > -#define DSI3_SEL_IN_RDMA1 (0x1 << 16) > -#define DSI3_SEL_IN_RDMA2 (0x4 << 16) > -#define COLOR1_SEL_IN_OVL1 0x1 > - > -#define OVL_MOUT_EN_RDMA 0x1 > -#define BLS_TO_DSI_RDMA1_TO_DPI1 0x8 > -#define BLS_TO_DPI_RDMA1_TO_DSI 0x2 > -#define DSI_SEL_IN_BLS 0x0 > -#define DPI_SEL_IN_BLS 0x0 > -#define DSI_SEL_IN_RDMA 0x1 > > struct mtk_disp_mutex { > int id; > @@ -246,200 +184,6 @@ static const struct mtk_ddp_data mt8173_ddp_driver_data = { > .mutex_sof_reg = MT2701_DISP_MUTEX0_SOF0, > }; > > -static unsigned int mtk_ddp_mout_en(enum mtk_ddp_comp_id cur, > - enum mtk_ddp_comp_id next, > - unsigned int *addr) > -{ > - unsigned int value; > - > - if (cur == DDP_COMPONENT_OVL0 && next == DDP_COMPONENT_COLOR0) { > - *addr = DISP_REG_CONFIG_DISP_OVL0_MOUT_EN; > - value = OVL0_MOUT_EN_COLOR0; > - } else if (cur == DDP_COMPONENT_OVL0 && next == DDP_COMPONENT_RDMA0) { > - *addr = DISP_REG_CONFIG_DISP_OVL_MOUT_EN; > - value = OVL_MOUT_EN_RDMA; > - } else if (cur == DDP_COMPONENT_OD0 && next == DDP_COMPONENT_RDMA0) { > - *addr = DISP_REG_CONFIG_DISP_OD_MOUT_EN; > - value = OD_MOUT_EN_RDMA0; > - } else if (cur == DDP_COMPONENT_UFOE && next == DDP_COMPONENT_DSI0) { > - *addr = DISP_REG_CONFIG_DISP_UFOE_MOUT_EN; > - value = UFOE_MOUT_EN_DSI0; > - } else if (cur == DDP_COMPONENT_OVL1 && next == DDP_COMPONENT_COLOR1) { > - *addr = DISP_REG_CONFIG_DISP_OVL1_MOUT_EN; > - value = OVL1_MOUT_EN_COLOR1; > - } else if (cur == DDP_COMPONENT_GAMMA && next == DDP_COMPONENT_RDMA1) { > - *addr = DISP_REG_CONFIG_DISP_GAMMA_MOUT_EN; > - value = GAMMA_MOUT_EN_RDMA1; > - } else if (cur == DDP_COMPONENT_OD1 && next == DDP_COMPONENT_RDMA1) { > - *addr = DISP_REG_CONFIG_DISP_OD_MOUT_EN; > - value = OD1_MOUT_EN_RDMA1; > - } else if (cur == DDP_COMPONENT_RDMA0 && next == DDP_COMPONENT_DPI0) { > - *addr = DISP_REG_CONFIG_DISP_RDMA0_SOUT_EN; > - value = RDMA0_SOUT_DPI0; > - } else if (cur == DDP_COMPONENT_RDMA0 && next == DDP_COMPONENT_DPI1) { > - *addr = DISP_REG_CONFIG_DISP_RDMA0_SOUT_EN; > - value = RDMA0_SOUT_DPI1; > - } else if (cur == DDP_COMPONENT_RDMA0 && next == DDP_COMPONENT_DSI1) { > - *addr = DISP_REG_CONFIG_DISP_RDMA0_SOUT_EN; > - value = RDMA0_SOUT_DSI1; > - } else if (cur == DDP_COMPONENT_RDMA0 && next == DDP_COMPONENT_DSI2) { > - *addr = DISP_REG_CONFIG_DISP_RDMA0_SOUT_EN; > - value = RDMA0_SOUT_DSI2; > - } else if (cur == DDP_COMPONENT_RDMA0 && next == DDP_COMPONENT_DSI3) { > - *addr = DISP_REG_CONFIG_DISP_RDMA0_SOUT_EN; > - value = RDMA0_SOUT_DSI3; > - } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DSI1) { > - *addr = DISP_REG_CONFIG_DISP_RDMA1_SOUT_EN; > - value = RDMA1_SOUT_DSI1; > - } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DSI2) { > - *addr = DISP_REG_CONFIG_DISP_RDMA1_SOUT_EN; > - value = RDMA1_SOUT_DSI2; > - } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DSI3) { > - *addr = DISP_REG_CONFIG_DISP_RDMA1_SOUT_EN; > - value = RDMA1_SOUT_DSI3; > - } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DPI0) { > - *addr = DISP_REG_CONFIG_DISP_RDMA1_SOUT_EN; > - value = RDMA1_SOUT_DPI0; > - } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DPI1) { > - *addr = DISP_REG_CONFIG_DISP_RDMA1_SOUT_EN; > - value = RDMA1_SOUT_DPI1; > - } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DPI0) { > - *addr = DISP_REG_CONFIG_DISP_RDMA2_SOUT; > - value = RDMA2_SOUT_DPI0; > - } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DPI1) { > - *addr = DISP_REG_CONFIG_DISP_RDMA2_SOUT; > - value = RDMA2_SOUT_DPI1; > - } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DSI1) { > - *addr = DISP_REG_CONFIG_DISP_RDMA2_SOUT; > - value = RDMA2_SOUT_DSI1; > - } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DSI2) { > - *addr = DISP_REG_CONFIG_DISP_RDMA2_SOUT; > - value = RDMA2_SOUT_DSI2; > - } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DSI3) { > - *addr = DISP_REG_CONFIG_DISP_RDMA2_SOUT; > - value = RDMA2_SOUT_DSI3; > - } else { > - value = 0; > - } > - > - return value; > -} > - > -static unsigned int mtk_ddp_sel_in(enum mtk_ddp_comp_id cur, > - enum mtk_ddp_comp_id next, > - unsigned int *addr) > -{ > - unsigned int value; > - > - if (cur == DDP_COMPONENT_OVL0 && next == DDP_COMPONENT_COLOR0) { > - *addr = DISP_REG_CONFIG_DISP_COLOR0_SEL_IN; > - value = COLOR0_SEL_IN_OVL0; > - } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DPI0) { > - *addr = DISP_REG_CONFIG_DPI_SEL_IN; > - value = DPI0_SEL_IN_RDMA1; > - } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DPI1) { > - *addr = DISP_REG_CONFIG_DPI_SEL_IN; > - value = DPI1_SEL_IN_RDMA1; > - } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DSI0) { > - *addr = DISP_REG_CONFIG_DSIE_SEL_IN; > - value = DSI0_SEL_IN_RDMA1; > - } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DSI1) { > - *addr = DISP_REG_CONFIG_DSIO_SEL_IN; > - value = DSI1_SEL_IN_RDMA1; > - } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DSI2) { > - *addr = DISP_REG_CONFIG_DSIE_SEL_IN; > - value = DSI2_SEL_IN_RDMA1; > - } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DSI3) { > - *addr = DISP_REG_CONFIG_DSIO_SEL_IN; > - value = DSI3_SEL_IN_RDMA1; > - } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DPI0) { > - *addr = DISP_REG_CONFIG_DPI_SEL_IN; > - value = DPI0_SEL_IN_RDMA2; > - } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DPI1) { > - *addr = DISP_REG_CONFIG_DPI_SEL_IN; > - value = DPI1_SEL_IN_RDMA2; > - } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DSI0) { > - *addr = DISP_REG_CONFIG_DSIE_SEL_IN; > - value = DSI0_SEL_IN_RDMA2; > - } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DSI1) { > - *addr = DISP_REG_CONFIG_DSIO_SEL_IN; > - value = DSI1_SEL_IN_RDMA2; > - } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DSI2) { > - *addr = DISP_REG_CONFIG_DSIE_SEL_IN; > - value = DSI2_SEL_IN_RDMA2; > - } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DSI3) { > - *addr = DISP_REG_CONFIG_DSIE_SEL_IN; > - value = DSI3_SEL_IN_RDMA2; > - } else if (cur == DDP_COMPONENT_OVL1 && next == DDP_COMPONENT_COLOR1) { > - *addr = DISP_REG_CONFIG_DISP_COLOR1_SEL_IN; > - value = COLOR1_SEL_IN_OVL1; > - } else if (cur == DDP_COMPONENT_BLS && next == DDP_COMPONENT_DSI0) { > - *addr = DISP_REG_CONFIG_DSI_SEL; > - value = DSI_SEL_IN_BLS; > - } else { > - value = 0; > - } > - > - return value; > -} > - > -static void mtk_ddp_sout_sel(void __iomem *config_regs, > - enum mtk_ddp_comp_id cur, > - enum mtk_ddp_comp_id next) > -{ > - if (cur == DDP_COMPONENT_BLS && next == DDP_COMPONENT_DSI0) { > - writel_relaxed(BLS_TO_DSI_RDMA1_TO_DPI1, > - config_regs + DISP_REG_CONFIG_OUT_SEL); > - } else if (cur == DDP_COMPONENT_BLS && next == DDP_COMPONENT_DPI0) { > - writel_relaxed(BLS_TO_DPI_RDMA1_TO_DSI, > - config_regs + DISP_REG_CONFIG_OUT_SEL); > - writel_relaxed(DSI_SEL_IN_RDMA, > - config_regs + DISP_REG_CONFIG_DSI_SEL); > - writel_relaxed(DPI_SEL_IN_BLS, > - config_regs + DISP_REG_CONFIG_DPI_SEL); > - } > -} > - > -void mtk_ddp_add_comp_to_path(void __iomem *config_regs, > - enum mtk_ddp_comp_id cur, > - enum mtk_ddp_comp_id next) > -{ > - unsigned int addr, value, reg; > - > - value = mtk_ddp_mout_en(cur, next, &addr); > - if (value) { > - reg = readl_relaxed(config_regs + addr) | value; > - writel_relaxed(reg, config_regs + addr); > - } > - > - mtk_ddp_sout_sel(config_regs, cur, next); > - > - value = mtk_ddp_sel_in(cur, next, &addr); > - if (value) { > - reg = readl_relaxed(config_regs + addr) | value; > - writel_relaxed(reg, config_regs + addr); > - } > -} > - > -void mtk_ddp_remove_comp_from_path(void __iomem *config_regs, > - enum mtk_ddp_comp_id cur, > - enum mtk_ddp_comp_id next) > -{ > - unsigned int addr, value, reg; > - > - value = mtk_ddp_mout_en(cur, next, &addr); > - if (value) { > - reg = readl_relaxed(config_regs + addr) & ~value; > - writel_relaxed(reg, config_regs + addr); > - } > - > - value = mtk_ddp_sel_in(cur, next, &addr); > - if (value) { > - reg = readl_relaxed(config_regs + addr) & ~value; > - writel_relaxed(reg, config_regs + addr); > - } > -} > - > struct mtk_disp_mutex *mtk_disp_mutex_get(struct device *dev, unsigned int id) > { > struct mtk_ddp *ddp = dev_get_drvdata(dev); > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp.h b/drivers/gpu/drm/mediatek/mtk_drm_ddp.h > index 827be424a148..6b691a57be4a 100644 > --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp.h > +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp.h > @@ -12,13 +12,6 @@ struct regmap; > struct device; > struct mtk_disp_mutex; > > -void mtk_ddp_add_comp_to_path(void __iomem *config_regs, > - enum mtk_ddp_comp_id cur, > - enum mtk_ddp_comp_id next); > -void mtk_ddp_remove_comp_from_path(void __iomem *config_regs, > - enum mtk_ddp_comp_id cur, > - enum mtk_ddp_comp_id next); > - > struct mtk_disp_mutex *mtk_disp_mutex_get(struct device *dev, unsigned int id); > int mtk_disp_mutex_prepare(struct mtk_disp_mutex *mutex); > void mtk_disp_mutex_add_comp(struct mtk_disp_mutex *mutex, > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c > index 8e2d3cb62ad5..208f9c5256ef 100644 > --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c > +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c > @@ -10,6 +10,7 @@ > #include > #include > #include > +#include > #include > > #include > @@ -425,7 +426,6 @@ static int mtk_drm_probe(struct platform_device *pdev) > { > struct device *dev = &pdev->dev; > struct mtk_drm_private *private; > - struct resource *mem; > struct device_node *node; > struct component_match *match = NULL; > int ret; > @@ -436,14 +436,10 @@ static int mtk_drm_probe(struct platform_device *pdev) > return -ENOMEM; > > private->data = of_device_get_match_data(dev); > - > - mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); > - private->config_regs = devm_ioremap_resource(dev, mem); > - if (IS_ERR(private->config_regs)) { > - ret = PTR_ERR(private->config_regs); > - dev_err(dev, "Failed to ioremap mmsys-config resource: %d\n", > - ret); > - return ret; > + private->mmsys_dev = dev->parent; > + if (!private->mmsys_dev) { > + dev_err(dev, "Failed to get MMSYS device\n"); > + return -ENODEV; > } > > /* Iterate over sibling DISP function blocks */ > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.h b/drivers/gpu/drm/mediatek/mtk_drm_drv.h > index 17bc99b9f5d4..b5be63e53176 100644 > --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.h > +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.h > @@ -39,7 +39,7 @@ struct mtk_drm_private { > > struct device_node *mutex_node; > struct device *mutex_dev; > - void __iomem *config_regs; > + struct device *mmsys_dev; > struct device_node *comp_node[DDP_COMPONENT_ID_MAX]; > struct mtk_ddp_comp *ddp_comp[DDP_COMPONENT_ID_MAX]; > const struct mtk_mmsys_driver_data *data; > diff --git a/drivers/soc/mediatek/mtk-mmsys.c b/drivers/soc/mediatek/mtk-mmsys.c > index dbdfedd302fa..4b286b525cd3 100644 > --- a/drivers/soc/mediatek/mtk-mmsys.c > +++ b/drivers/soc/mediatek/mtk-mmsys.c > @@ -5,8 +5,76 @@ > */ > > #include > +#include > #include > #include > +#include > + > +#include "../../gpu/drm/mediatek/mtk_drm_ddp.h" > +#include "../../gpu/drm/mediatek/mtk_drm_ddp_comp.h" > + > +#define DISP_REG_CONFIG_DISP_OVL0_MOUT_EN 0x040 > +#define DISP_REG_CONFIG_DISP_OVL1_MOUT_EN 0x044 > +#define DISP_REG_CONFIG_DISP_OD_MOUT_EN 0x048 > +#define DISP_REG_CONFIG_DISP_GAMMA_MOUT_EN 0x04c > +#define DISP_REG_CONFIG_DISP_UFOE_MOUT_EN 0x050 > +#define DISP_REG_CONFIG_DISP_COLOR0_SEL_IN 0x084 > +#define DISP_REG_CONFIG_DISP_COLOR1_SEL_IN 0x088 > +#define DISP_REG_CONFIG_DSIE_SEL_IN 0x0a4 > +#define DISP_REG_CONFIG_DSIO_SEL_IN 0x0a8 > +#define DISP_REG_CONFIG_DPI_SEL_IN 0x0ac > +#define DISP_REG_CONFIG_DISP_RDMA2_SOUT 0x0b8 > +#define DISP_REG_CONFIG_DISP_RDMA0_SOUT_EN 0x0c4 > +#define DISP_REG_CONFIG_DISP_RDMA1_SOUT_EN 0x0c8 > +#define DISP_REG_CONFIG_MMSYS_CG_CON0 0x100 > + > +#define DISP_REG_CONFIG_DISP_OVL_MOUT_EN 0x030 > +#define DISP_REG_CONFIG_OUT_SEL 0x04c > +#define DISP_REG_CONFIG_DSI_SEL 0x050 > +#define DISP_REG_CONFIG_DPI_SEL 0x064 > + > +#define OVL0_MOUT_EN_COLOR0 0x1 > +#define OD_MOUT_EN_RDMA0 0x1 > +#define OD1_MOUT_EN_RDMA1 BIT(16) > +#define UFOE_MOUT_EN_DSI0 0x1 > +#define COLOR0_SEL_IN_OVL0 0x1 > +#define OVL1_MOUT_EN_COLOR1 0x1 > +#define GAMMA_MOUT_EN_RDMA1 0x1 > +#define RDMA0_SOUT_DPI0 0x2 > +#define RDMA0_SOUT_DPI1 0x3 > +#define RDMA0_SOUT_DSI1 0x1 > +#define RDMA0_SOUT_DSI2 0x4 > +#define RDMA0_SOUT_DSI3 0x5 > +#define RDMA1_SOUT_DPI0 0x2 > +#define RDMA1_SOUT_DPI1 0x3 > +#define RDMA1_SOUT_DSI1 0x1 > +#define RDMA1_SOUT_DSI2 0x4 > +#define RDMA1_SOUT_DSI3 0x5 > +#define RDMA2_SOUT_DPI0 0x2 > +#define RDMA2_SOUT_DPI1 0x3 > +#define RDMA2_SOUT_DSI1 0x1 > +#define RDMA2_SOUT_DSI2 0x4 > +#define RDMA2_SOUT_DSI3 0x5 > +#define DPI0_SEL_IN_RDMA1 0x1 > +#define DPI0_SEL_IN_RDMA2 0x3 > +#define DPI1_SEL_IN_RDMA1 (0x1 << 8) > +#define DPI1_SEL_IN_RDMA2 (0x3 << 8) > +#define DSI0_SEL_IN_RDMA1 0x1 > +#define DSI0_SEL_IN_RDMA2 0x4 > +#define DSI1_SEL_IN_RDMA1 0x1 > +#define DSI1_SEL_IN_RDMA2 0x4 > +#define DSI2_SEL_IN_RDMA1 (0x1 << 16) > +#define DSI2_SEL_IN_RDMA2 (0x4 << 16) > +#define DSI3_SEL_IN_RDMA1 (0x1 << 16) > +#define DSI3_SEL_IN_RDMA2 (0x4 << 16) > +#define COLOR1_SEL_IN_OVL1 0x1 > + > +#define OVL_MOUT_EN_RDMA 0x1 > +#define BLS_TO_DSI_RDMA1_TO_DPI1 0x8 > +#define BLS_TO_DPI_RDMA1_TO_DSI 0x2 > +#define DSI_SEL_IN_BLS 0x0 > +#define DPI_SEL_IN_BLS 0x0 > +#define DSI_SEL_IN_RDMA 0x1 > > struct mtk_mmsys_driver_data { > const char *clk_driver; > @@ -16,10 +84,221 @@ static const struct mtk_mmsys_driver_data mt8173_mmsys_driver_data = { > .clk_driver = "clk-mt8173-mm", > }; > > +static unsigned int mtk_mmsys_ddp_mout_en(enum mtk_ddp_comp_id cur, > + enum mtk_ddp_comp_id next, > + unsigned int *addr) > +{ > + unsigned int value; > + > + if (cur == DDP_COMPONENT_OVL0 && next == DDP_COMPONENT_COLOR0) { > + *addr = DISP_REG_CONFIG_DISP_OVL0_MOUT_EN; > + value = OVL0_MOUT_EN_COLOR0; > + } else if (cur == DDP_COMPONENT_OVL0 && next == DDP_COMPONENT_RDMA0) { > + *addr = DISP_REG_CONFIG_DISP_OVL_MOUT_EN; > + value = OVL_MOUT_EN_RDMA; > + } else if (cur == DDP_COMPONENT_OD0 && next == DDP_COMPONENT_RDMA0) { > + *addr = DISP_REG_CONFIG_DISP_OD_MOUT_EN; > + value = OD_MOUT_EN_RDMA0; > + } else if (cur == DDP_COMPONENT_UFOE && next == DDP_COMPONENT_DSI0) { > + *addr = DISP_REG_CONFIG_DISP_UFOE_MOUT_EN; > + value = UFOE_MOUT_EN_DSI0; > + } else if (cur == DDP_COMPONENT_OVL1 && next == DDP_COMPONENT_COLOR1) { > + *addr = DISP_REG_CONFIG_DISP_OVL1_MOUT_EN; > + value = OVL1_MOUT_EN_COLOR1; > + } else if (cur == DDP_COMPONENT_GAMMA && next == DDP_COMPONENT_RDMA1) { > + *addr = DISP_REG_CONFIG_DISP_GAMMA_MOUT_EN; > + value = GAMMA_MOUT_EN_RDMA1; > + } else if (cur == DDP_COMPONENT_OD1 && next == DDP_COMPONENT_RDMA1) { > + *addr = DISP_REG_CONFIG_DISP_OD_MOUT_EN; > + value = OD1_MOUT_EN_RDMA1; > + } else if (cur == DDP_COMPONENT_RDMA0 && next == DDP_COMPONENT_DPI0) { > + *addr = DISP_REG_CONFIG_DISP_RDMA0_SOUT_EN; > + value = RDMA0_SOUT_DPI0; > + } else if (cur == DDP_COMPONENT_RDMA0 && next == DDP_COMPONENT_DPI1) { > + *addr = DISP_REG_CONFIG_DISP_RDMA0_SOUT_EN; > + value = RDMA0_SOUT_DPI1; > + } else if (cur == DDP_COMPONENT_RDMA0 && next == DDP_COMPONENT_DSI1) { > + *addr = DISP_REG_CONFIG_DISP_RDMA0_SOUT_EN; > + value = RDMA0_SOUT_DSI1; > + } else if (cur == DDP_COMPONENT_RDMA0 && next == DDP_COMPONENT_DSI2) { > + *addr = DISP_REG_CONFIG_DISP_RDMA0_SOUT_EN; > + value = RDMA0_SOUT_DSI2; > + } else if (cur == DDP_COMPONENT_RDMA0 && next == DDP_COMPONENT_DSI3) { > + *addr = DISP_REG_CONFIG_DISP_RDMA0_SOUT_EN; > + value = RDMA0_SOUT_DSI3; > + } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DSI1) { > + *addr = DISP_REG_CONFIG_DISP_RDMA1_SOUT_EN; > + value = RDMA1_SOUT_DSI1; > + } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DSI2) { > + *addr = DISP_REG_CONFIG_DISP_RDMA1_SOUT_EN; > + value = RDMA1_SOUT_DSI2; > + } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DSI3) { > + *addr = DISP_REG_CONFIG_DISP_RDMA1_SOUT_EN; > + value = RDMA1_SOUT_DSI3; > + } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DPI0) { > + *addr = DISP_REG_CONFIG_DISP_RDMA1_SOUT_EN; > + value = RDMA1_SOUT_DPI0; > + } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DPI1) { > + *addr = DISP_REG_CONFIG_DISP_RDMA1_SOUT_EN; > + value = RDMA1_SOUT_DPI1; > + } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DPI0) { > + *addr = DISP_REG_CONFIG_DISP_RDMA2_SOUT; > + value = RDMA2_SOUT_DPI0; > + } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DPI1) { > + *addr = DISP_REG_CONFIG_DISP_RDMA2_SOUT; > + value = RDMA2_SOUT_DPI1; > + } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DSI1) { > + *addr = DISP_REG_CONFIG_DISP_RDMA2_SOUT; > + value = RDMA2_SOUT_DSI1; > + } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DSI2) { > + *addr = DISP_REG_CONFIG_DISP_RDMA2_SOUT; > + value = RDMA2_SOUT_DSI2; > + } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DSI3) { > + *addr = DISP_REG_CONFIG_DISP_RDMA2_SOUT; > + value = RDMA2_SOUT_DSI3; > + } else { > + value = 0; > + } > + > + return value; > +} > + > +static unsigned int mtk_mmsys_ddp_sel_in(enum mtk_ddp_comp_id cur, > + enum mtk_ddp_comp_id next, > + unsigned int *addr) > +{ > + unsigned int value; > + > + if (cur == DDP_COMPONENT_OVL0 && next == DDP_COMPONENT_COLOR0) { > + *addr = DISP_REG_CONFIG_DISP_COLOR0_SEL_IN; > + value = COLOR0_SEL_IN_OVL0; > + } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DPI0) { > + *addr = DISP_REG_CONFIG_DPI_SEL_IN; > + value = DPI0_SEL_IN_RDMA1; > + } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DPI1) { > + *addr = DISP_REG_CONFIG_DPI_SEL_IN; > + value = DPI1_SEL_IN_RDMA1; > + } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DSI0) { > + *addr = DISP_REG_CONFIG_DSIE_SEL_IN; > + value = DSI0_SEL_IN_RDMA1; > + } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DSI1) { > + *addr = DISP_REG_CONFIG_DSIO_SEL_IN; > + value = DSI1_SEL_IN_RDMA1; > + } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DSI2) { > + *addr = DISP_REG_CONFIG_DSIE_SEL_IN; > + value = DSI2_SEL_IN_RDMA1; > + } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DSI3) { > + *addr = DISP_REG_CONFIG_DSIO_SEL_IN; > + value = DSI3_SEL_IN_RDMA1; > + } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DPI0) { > + *addr = DISP_REG_CONFIG_DPI_SEL_IN; > + value = DPI0_SEL_IN_RDMA2; > + } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DPI1) { > + *addr = DISP_REG_CONFIG_DPI_SEL_IN; > + value = DPI1_SEL_IN_RDMA2; > + } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DSI0) { > + *addr = DISP_REG_CONFIG_DSIE_SEL_IN; > + value = DSI0_SEL_IN_RDMA2; > + } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DSI1) { > + *addr = DISP_REG_CONFIG_DSIO_SEL_IN; > + value = DSI1_SEL_IN_RDMA2; > + } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DSI2) { > + *addr = DISP_REG_CONFIG_DSIE_SEL_IN; > + value = DSI2_SEL_IN_RDMA2; > + } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DSI3) { > + *addr = DISP_REG_CONFIG_DSIE_SEL_IN; > + value = DSI3_SEL_IN_RDMA2; > + } else if (cur == DDP_COMPONENT_OVL1 && next == DDP_COMPONENT_COLOR1) { > + *addr = DISP_REG_CONFIG_DISP_COLOR1_SEL_IN; > + value = COLOR1_SEL_IN_OVL1; > + } else if (cur == DDP_COMPONENT_BLS && next == DDP_COMPONENT_DSI0) { > + *addr = DISP_REG_CONFIG_DSI_SEL; > + value = DSI_SEL_IN_BLS; > + } else { > + value = 0; > + } > + > + return value; > +} > + > +static void mtk_mmsys_ddp_sout_sel(void __iomem *config_regs, > + enum mtk_ddp_comp_id cur, > + enum mtk_ddp_comp_id next) > +{ > + if (cur == DDP_COMPONENT_BLS && next == DDP_COMPONENT_DSI0) { > + writel_relaxed(BLS_TO_DSI_RDMA1_TO_DPI1, > + config_regs + DISP_REG_CONFIG_OUT_SEL); > + } else if (cur == DDP_COMPONENT_BLS && next == DDP_COMPONENT_DPI0) { > + writel_relaxed(BLS_TO_DPI_RDMA1_TO_DSI, > + config_regs + DISP_REG_CONFIG_OUT_SEL); > + writel_relaxed(DSI_SEL_IN_RDMA, > + config_regs + DISP_REG_CONFIG_DSI_SEL); > + writel_relaxed(DPI_SEL_IN_BLS, > + config_regs + DISP_REG_CONFIG_DPI_SEL); > + } > +} > + > +void mtk_mmsys_ddp_connect(struct device *dev, > + enum mtk_ddp_comp_id cur, > + enum mtk_ddp_comp_id next) > +{ > + void __iomem *config_regs = dev_get_drvdata(dev); > + unsigned int addr, value, reg; > + > + value = mtk_mmsys_ddp_mout_en(cur, next, &addr); > + if (value) { > + reg = readl_relaxed(config_regs + addr) | value; > + writel_relaxed(reg, config_regs + addr); > + } > + > + mtk_mmsys_ddp_sout_sel(config_regs, cur, next); > + > + value = mtk_mmsys_ddp_sel_in(cur, next, &addr); > + if (value) { > + reg = readl_relaxed(config_regs + addr) | value; > + writel_relaxed(reg, config_regs + addr); > + } > +} > + > +void mtk_mmsys_ddp_disconnect(struct device *dev, > + enum mtk_ddp_comp_id cur, > + enum mtk_ddp_comp_id next) > +{ > + void __iomem *config_regs = dev_get_drvdata(dev); > + unsigned int addr, value, reg; > + > + value = mtk_mmsys_ddp_mout_en(cur, next, &addr); > + if (value) { > + reg = readl_relaxed(config_regs + addr) & ~value; > + writel_relaxed(reg, config_regs + addr); > + } > + > + value = mtk_mmsys_ddp_sel_in(cur, next, &addr); > + if (value) { > + reg = readl_relaxed(config_regs + addr) & ~value; > + writel_relaxed(reg, config_regs + addr); > + } > +} > + > static int mtk_mmsys_probe(struct platform_device *pdev) > { > const struct mtk_mmsys_driver_data *data; > + struct device *dev = &pdev->dev; > struct platform_device *clks; > + void __iomem *config_regs; > + struct resource *mem; > + int ret; > + > + mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); > + config_regs = devm_ioremap_resource(dev, mem); > + if (IS_ERR(config_regs)) { > + ret = PTR_ERR(config_regs); > + dev_err(dev, "Failed to ioremap mmsys-config resource: %d\n", > + ret); > + return ret; > + } > + > + platform_set_drvdata(pdev, config_regs); > > data = of_device_get_match_data(&pdev->dev); > > diff --git a/include/linux/soc/mediatek/mtk-mmsys.h b/include/linux/soc/mediatek/mtk-mmsys.h > new file mode 100644 > index 000000000000..7bab5d9a3d31 > --- /dev/null > +++ b/include/linux/soc/mediatek/mtk-mmsys.h > @@ -0,0 +1,20 @@ > +/* SPDX-License-Identifier: GPL-2.0-only */ > +/* > + * Copyright (c) 2015 MediaTek Inc. > + */ > + > +#ifndef __MTK_MMSYS_H > +#define __MTK_MMSYS_H > + > +enum mtk_ddp_comp_id; > +struct device; > + > +void mtk_mmsys_ddp_connect(struct device *dev, > + enum mtk_ddp_comp_id cur, > + enum mtk_ddp_comp_id next); > + > +void mtk_mmsys_ddp_disconnect(struct device *dev, > + enum mtk_ddp_comp_id cur, > + enum mtk_ddp_comp_id next); > + > +#endif /* __MTK_MMSYS_H */ >