Re: [PATCH v12 4/5] soc / drm: mediatek: Move routing control to mmsys device

[CK Hu <ck.hu@mediatek.com>]

Hi, Matthias:

On Thu, 2020-03-26 at 16:45 +0100, Matthias Brugger wrote:
> 
> On 26/03/2020 15:51, CK Hu wrote:
> > 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.
> > 
> 
> I haven't (yet) send the pull request. If you want to bring in your patches in
> v5.7 as well we can find a solution to that. Shall I provide you with a stable
> branch which you can merge? This way you can add all your patches in the pull
> request as well and we don't have to wait for v5.8 to get things into mainline.
> 
> Let me know and I'll provide you with a stable branch.
> 

Other drm patches is not in a hurry, for now I don't need a stable
branch. If I need one, I would tell you, thanks.

Regards,
CK

> Regards,
> Matthias
> 
> > 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
> >