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From: CK Hu <ck.hu@mediatek.com>
To: Matthias Brugger <mbrugger@suse.com>
Cc: <mark.rutland@arm.com>,
	Kate Stewart <kstewart@linuxfoundation.org>,
	Minghsiu Tsai <minghsiu.tsai@mediatek.com>,
	Andrew-CT Chen <andrew-ct.chen@mediatek.com>, <airlied@linux.ie>,
	<mturquette@baylibre.com>, <dri-devel@lists.freedesktop.org>,
	Richard Fontana <rfontana@redhat.com>,
	<laurent.pinchart@ideasonboard.com>,
	<ulrich.hecht+renesas@gmail.com>,
	Collabora Kernel ML <kernel@collabora.com>,
	<linux-clk@vger.kernel.org>, Weiyi Lu <weiyi.lu@mediatek.com>,
	<wens@csie.org>, <linux-arm-kernel@lists.infradead.org>,
	mtk01761 <wendell.lin@mediatek.com>,
	<linux-media@vger.kernel.org>, <devicetree@vger.kernel.org>,
	Daniel Vetter <daniel@ffwll.ch>, <frank-w@public-files.de>,
	Seiya Wang <seiya.wang@mediatek.com>, <sean.wang@mediatek.com>,
	Houlong Wei <houlong.wei@mediatek.com>, <robh+dt@kernel.org>,
	<linux-mediatek@lists.infradead.org>, <hsinyi@chromium.org>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	"Mauro Carvalho Chehab" <mchehab@kernel.org>,
	Allison Randal <allison@lohutok.net>, <sboyd@kernel.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	<rdunlap@infradead.org>, <linux-kernel@vger.kernel.org>,
	<p.zabel@pengutronix.de>, <matthias.bgg@kernel.org>,
	Enric Balletbo i Serra <enric.balletbo@collabora.com>
Subject: Re: [PATCH v12 4/5] soc / drm: mediatek: Move routing control to mmsys device
Date: Thu, 26 Mar 2020 22:51:17 +0800
Message-ID: <1585234277.12089.3.camel@mtksdaap41> (raw)
In-Reply-To: <f3c2926a-ef92-b004-9786-5be1645af497@suse.com>

Hi, Matthias:

On Thu, 2020-03-26 at 12:54 +0100, Matthias Brugger wrote:
> Hi CK,
> 
> On 26/03/2020 00:05, CK Hu wrote:
> > Hi, Matthias:
> > 
> > On Wed, 2020-03-25 at 17:16 +0100, Matthias Brugger wrote:
> >>
> >> 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 <enric.balletbo@collabora.com>
> >>> Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
> >>> Reviewed-by: CK Hu <ck.hu@mediatek.com>
> >>> Acked-by: CK Hu <ck.hu@mediatek.com>
> >>
> >> 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.
> > 
> > I think this patch depends on [1] which has been acked by me and I have
> > not picked it. The simple way is that you pick [1] first and then pick
> > this series.
> > 
> > [1] 
> > https://patchwork.kernel.org/patch/11406227/
> > 
> 
> You would need to provide a stable tag for me that I can merge into my tree. You
> can also try to merge my for-next [1] which has the newest version from Enric.
> If you see any merge conflict, then we have to do something about it :)
> 
> Regards,
> Matthias
> 
> [1]
> https://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux.git/log/?h=for-next
> 

You have applied this series, so I would not apply other patches which
would conflict with this series. After this series land on main stream
(wish it happen in this merge window), I would rebase other patch on
main stream.

Regards,
CK

> > Regards,
> > CK
> > 
> >>
> >> 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 <linux/clk.h>
> >>>  #include <linux/pm_runtime.h>
> >>>  #include <linux/soc/mediatek/mtk-cmdq.h>
> >>> +#include <linux/soc/mediatek/mtk-mmsys.h>
> >>>  
> >>>  #include <asm/barrier.h>
> >>>  #include <soc/mediatek/smi.h>
> >>> @@ -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 <linux/of_address.h>
> >>>  #include <linux/of_platform.h>
> >>>  #include <linux/pm_runtime.h>
> >>> +#include <linux/soc/mediatek/mtk-mmsys.h>
> >>>  #include <linux/dma-mapping.h>
> >>>  
> >>>  #include <drm/drm_atomic.h>
> >>> @@ -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 <linux/clk-provider.h>
> >>> +#include <linux/device.h>
> >>>  #include <linux/of_device.h>
> >>>  #include <linux/platform_device.h>
> >>> +#include <linux/soc/mediatek/mtk-mmsys.h>
> >>> +
> >>> +#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 */
> >>>
> > 
> 
> _______________________________________________
> Linux-mediatek mailing list
> Linux-mediatek@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-mediatek


  reply index

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-11 16:53 [PATCH v12 0/5] arm/arm64: mediatek: Fix mt8173 mmsys device probing Enric Balletbo i Serra
2020-03-11 16:53 ` [PATCH v12 1/5] drm/mediatek: Omit warning on probe defers Enric Balletbo i Serra
2020-03-11 16:53 ` [PATCH v12 2/5] dt-bindings: mediatek: Update mmsys binding to reflect it is a system controller Enric Balletbo i Serra
2020-03-12 15:22   ` Rob Herring
2020-03-11 16:53 ` [PATCH v12 3/5] clk / soc: mediatek: Move mt8173 MMSYS to platform driver Enric Balletbo i Serra
2020-03-11 16:58   ` Enric Balletbo i Serra
     [not found]   ` <158474603935.125146.14986079780178656133@swboyd.mtv.corp.google.com>
2020-03-25 15:36     ` Chun-Kuang Hu
2020-03-11 16:53 ` [PATCH v12 4/5] soc / drm: mediatek: Move routing control to mmsys device Enric Balletbo i Serra
2020-03-25 16:16   ` Matthias Brugger
2020-03-25 23:05     ` CK Hu
2020-03-26 11:54       ` Matthias Brugger
2020-03-26 14:51         ` CK Hu [this message]
2020-03-26 15:45           ` Matthias Brugger
2020-03-27  1:55             ` CK Hu
2020-03-27 17:04       ` Matthias Brugger
2020-03-11 16:53 ` [PATCH v12 5/5] soc / drm: mediatek: Fix mediatek-drm device probing Enric Balletbo i Serra

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