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

Matthias Brugger
2020-03-26T15:45:23Z

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.

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 */
>>>>>
>>>
>>
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