MT6589 DRM and Blade panels by akku1139 · Pull Request #33 · TeamYogaBlade2/linux

akku1139 · 2026-03-14T05:15:01Z

thanks to rva3
https://github.com/mt6572-mainline/linux

The mt65xx SoC family uses an earlier version of the SMI, which we refer to as gen 0. Unlike gen 1 or gen 2, gen 0 requires simultaneous access to two distinct MMIO ranges: an AO base for IOMMU configuration and ext base for OSTD, FIFO, and bandwidth limiter setup. Remove the union in struct mtk_smi to allow simultaneous use of smi_ao_base and base. Refactor the probe function into a switch statement to handle the different generation requirements cleanly. Signed-off-by: rva3 <rva333@protonmail.com>

The mt65xx SoC family utilizes a larb design that incorporates features from both gen 1 and gen 2 architectures. Introduce a specific configuration callback for this generation, which implements the port security configuration typical for gen 1 while including the ostd settings found in gen 2. Additionally, add a bandwidth calibration flag for some of the gen 0 SoCs. Signed-off-by: rva3 <rva333@protonmail.com>

The mt65xx SoC family utilizes an earlier version of the IOMMU which shares the same v1 architecture but has minor hardware differences compared to mt2701. Introduce mtk_iommu_type to distinguish between mt2701 and mt65xx variants and apply the necessary logic. Signed-off-by: rva3 <rva333@protonmail.com>

akku1139 · 2026-03-14T05:15:40Z

maybe needed

mt6572-mainline@0b7a932
mt6572-mainline@b768977

XXX: maybe we should drop this?.. Signed-off-by: rva3 <rva333@protonmail.com>

Signed-off-by: Akari Tsuyukusa <akkun11.open@gmail.com>

Add a header for the IOMMU ports on the MediaTek MT6589 SoC. Signed-off-by: Akari Tsuyukusa <akkun11.open@gmail.com>

Add platform data for the SMI common on the MT6589 SoC. Signed-off-by: Akari Tsuyukusa <akkun11.open@gmail.com>

Make sure to drop the reference taken when looking up the SMI device during common probe on late probe failure (e.g. probe deferral) and on driver unbind. Fixes: 4740475 ("memory: mtk-smi: Add device link for smi-sub-common") Fixes: 038ae37 ("memory: mtk-smi: add missing put_device() call in mtk_smi_device_link_common") Cc: stable@vger.kernel.org # 5.16: 038ae37 Cc: stable@vger.kernel.org # 5.16 Cc: Yong Wu <yong.wu@mediatek.com> Cc: Miaoqian Lin <linmq006@gmail.com> Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://patch.msgid.link/20251121164624.13685-2-johan@kernel.org Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

Make sure to drop the reference taken when looking up the SMI device during larb probe on late probe failure (e.g. probe deferral) and on driver unbind. Fixes: cc8bbe1 ("memory: mediatek: Add SMI driver") Fixes: 038ae37 ("memory: mtk-smi: add missing put_device() call in mtk_smi_device_link_common") Cc: stable@vger.kernel.org # 4.6: 038ae37 Cc: stable@vger.kernel.org # 4.6 Cc: Yong Wu <yong.wu@mediatek.com> Cc: Miaoqian Lin <linmq006@gmail.com> Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://patch.msgid.link/20251121164624.13685-3-johan@kernel.org Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

Clean up device link creation by bailing out early in case the SMI platform device lookup fails. Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://patch.msgid.link/20251121164624.13685-4-johan@kernel.org Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

Signed-off-by: Akari Tsuyukusa <akkun11.open@gmail.com>

akku1139 · 2026-03-14T12:41:07Z

TODO:

mmsys (done by claude)
mt6572-mainline@7278659

mutex (done)
mt6572-mainline@a0b799a

ovl (done)
mt6572-mainline@39086e4

dsi (done)
mt6572-mainline@af8df08

drm main (done with mt2701_mmsys_driver_data)
mt6572-mainline@4fe7dec

In MT6589, this IP is called "dispsys" for some reason. I don't know more than that. Signed-off-by: Akari Tsuyukusa <akkun11.open@gmail.com>

It's in Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.yaml now. Signed-off-by: Akari Tsuyukusa <akkun11.open@gmail.com>

everyone will say "fixme" Signed-off-by: Akari Tsuyukusa <akkun11.open@gmail.com>

akku1139 · 2026-03-14T15:31:10Z

mmsys routing: ddp_path.c

Signed-off-by: Akari Tsuyukusa <akkun11.open@gmail.com>

akku1139 · 2026-03-17T01:37:31Z

#define REG_SMI_SECUR_CON(x)       	  (0x05C0+SMI_COMMON_AO_BASE+((x)<<2))
#define REG_SMI_SECUR_CON_OF_PORT(port)     REG_SMI_SECUR_CON(((m4u_port_2_smi_port(port))>>3))
    #define F_SMI_SECUR_CON_SECURE(port)        ((1)<<(((m4u_port_2_smi_port(port))&0x7)<<2))
    #define F_SMI_SECUR_CON_DOMAIN(port, val)   (((val)&0x3)<<((((m4u_port_2_smi_port(port))&0x7)<<2)+1))
    #define F_SMI_SECUR_CON_VIRTUAL(port)       ((1)<<((((m4u_port_2_smi_port(port))&0x7)<<2)+3))
    #define F_SMI_SECUR_CON_MASK(port)          ((0xf)<<((((m4u_port_2_smi_port(port))&0x7)<<2)))

https://github.com/bq/aquaris-5/blob/bc1d0d0e35c969670e2d869001be944ad0c9c5e5/mediatek/platform/mt6589/kernel/drivers/m4u/m4u_reg.h#L338-L343

akku1139 · 2026-03-17T01:37:58Z

/* Below are about mmu enable registers, they are different in SoCs */
/* gen1: mt2701 */
#define REG_SMI_SECUR_CON_BASE		0x5c0


/* every register control 8 port, register offset 0x4 */
#define REG_SMI_SECUR_CON_OFFSET(id)	(((id) >> 3) << 2)
#define REG_SMI_SECUR_CON_ADDR(id)	\
	(REG_SMI_SECUR_CON_BASE + REG_SMI_SECUR_CON_OFFSET(id))

linux/drivers/memory/mtk-smi.c

Lines 65 to 72 in 6316de5

    
           /* Below are about mmu enable registers, they are different in SoCs */ 
        
           /* gen1: mt2701 */ 
        
           #define REG_SMI_SECUR_CON_BASE		0x5c0 
        
           /* every register control 8 port, register offset 0x4 */ 
        
           #define REG_SMI_SECUR_CON_OFFSET(id)	(((id) >> 3) << 2) 
        
           #define REG_SMI_SECUR_CON_ADDR(id)	\ 
        
           	(REG_SMI_SECUR_CON_BASE + REG_SMI_SECUR_CON_OFFSET(id))

Signed-off-by: Akari Tsuyukusa <akkun11.open@gmail.com>

This reverts commit 6316de5.

Signed-off-by: Akari Tsuyukusa <akkun11.open@gmail.com>

akku1139 · 2026-06-22T11:15:31Z

larb6?

https://github.com/bq/aquaris-5/blob/bc1d0d0e35c969670e2d869001be944ad0c9c5e5/mediatek/platform/mt6589/kernel/drivers/m4u/m4u.c#L279
https://github.com/bq/aquaris-5/blob/bc1d0d0e35c969670e2d869001be944ad0c9c5e5/mediatek/platform/mt6589/kernel/drivers/m4u/m4u_reg.h#L316

akku1139 · 2026-06-22T11:18:09Z

1369 page:
Smi_larb0
Smi_larb1
Smi_larb2
Smi_larb3
Smi_larb4
Audio
G3D

akku1139 · 2026-06-22T11:25:51Z

drivers/memory/mtk-smi.c .port_in_larb = { 0, 10, 17, 29, 43, 53, 54, 54 },

drop too many ports

static unsigned int smi_port0_in_larbx[SMI_LARB_NR+1] = {0, 10, 17, 29, 44 ,56};
static unsigned int m4u_port0_in_larbx[SMI_LARB_NR+1] = {0, 10, 17, 29, 43 ,53};

needs fix

akku1139 · 2026-06-22T11:30:07Z

1380: SMI_L1ARB6

Signed-off-by: Akari Tsuyukusa <akkun11.open@gmail.com>

akku1139 · 2026-06-22T11:39:57Z

mt6589 m4u driver will support mt8135 in the future

https://github.com/mt8173-dev/android_kernel_amazon_sloane/blob/7cdf75e7ac0ba7009ff98fe71b291b118f634e77/drivers/misc/mediatek/m4u/mt8135/m4u.c

Signed-off-by: Akari Tsuyukusa <akkun11.open@gmail.com>

akku1139 · 2026-06-22T13:38:06Z

m4u <-> larb mapping

https://github.com/bq/aquaris-5/blob/bc1d0d0e35c969670e2d869001be944ad0c9c5e5/mediatek/platform/mt6589/kernel/drivers/m4u/m4u.c#L278

Signed-off-by: Akari Tsuyukusa <akkun11.open@gmail.com>

akku1139 · 2026-06-25T15:42:01Z

https://github.com/djkurtz/chromiumos-third_party-kernel-mediatek/blob/mtk-dev-3.16/drivers/iommu/mtk_iommu_mt8135.c

akku1139 · 2026-06-29T07:41:23Z

static unsigned int m4u_index_of_larb[SMI_LARB_NR] = {0,0,1,0,1};
static unsigned int m4u_index_of_larb5 = 0,  m4u_index_of_larb6 = 0;
static unsigned int smi_port0_in_larbx[SMI_LARB_NR+1] = {0, 10, 17, 29, 44 ,56};
static unsigned int m4u_port0_in_larbx[SMI_LARB_NR+1] = {0, 10, 17, 29, 43 ,53};
static unsigned int m4u_port_size_limit[M4U_PORT_NR] = {};

https://github.com/bq/aquaris-5/blob/bc1d0d0e35c969670e2d869001be944ad0c9c5e5/mediatek/platform/mt6589/kernel/drivers/m4u/m4u.c#L278-L282

akku1139 · 2026-06-30T04:39:13Z

smi is ok
https://chat.deepseek.com/share/pah3jomvjb4v0thiz8

pay attention to Jackie custom
https://github.com/bq/aquaris-5/blob/aquaris-5/mediatek/platform/mt6589/kernel/drivers/smi/smi_common.c

akku1139 and others added 6 commits January 2, 2026 22:50

pmdomain: mediatek: scpsys: init mt6589 support

4db11bb

arm: dts: mediatek: mt6589: fix scpsys address

f295374

Merge branch 'blade/v6.16' into dev/v6.16/mt6589-scpsys

02d62f8

rva3 and others added 16 commits March 14, 2026 14:16

drm: mediatek: ovl: attach errors for the interrupt

d692232

XXX: maybe we should drop this?.. Signed-off-by: rva3 <rva333@protonmail.com>

Merge branch 'blade/v6.16' into dev/v6.16/mt6589-drm

114f9c5

Merge branch 'blade/v6.16' into dev/v6.16/mt6589-scpsys

de0001d

dt-bindings: panel-simple-dsi: add blade10 panels

ecd5e20

Signed-off-by: Akari Tsuyukusa <akkun11.open@gmail.com>

drm/panel: simple: add blade10 HX8896-A01 panels

95713de

Signed-off-by: Akari Tsuyukusa <akkun11.open@gmail.com>

arm: dts: mediatek: blade refactor

bbe6791

Signed-off-by: Akari Tsuyukusa <akkun11.open@gmail.com>

Merge branch 'blade/v6.16' into dev/v6.16/mt6589-drm

d0e09de

dt-bindings: memory: Add MT6589

2e8043f

Add a header for the IOMMU ports on the MediaTek MT6589 SoC. Signed-off-by: Akari Tsuyukusa <akkun11.open@gmail.com>

memory: mtk-smi: Add MT6572 support

a1514b1

Add platform data for the SMI common on the MT6589 SoC. Signed-off-by: Akari Tsuyukusa <akkun11.open@gmail.com>

memory: mtk-smi: Add MT6589 larb support

4b13f54

Signed-off-by: Akari Tsuyukusa <akkun11.open@gmail.com>

dt-bindings: memory: mtk-smi: Add support for MT6589

59153f6

Signed-off-by: Akari Tsuyukusa <akkun11.open@gmail.com>

dt-bindings: iommu: mediatek: Add binding for MT6589 M4U

1000ec8

Signed-off-by: Akari Tsuyukusa <akkun11.open@gmail.com>

iommu: mtk_iommu_v1: add support for mt6589

5b7d09f

Signed-off-by: Akari Tsuyukusa <akkun11.open@gmail.com>

akku1139 added 3 commits March 14, 2026 22:53

dt-bindings: arm: mediatek: mmsys: Add mt6589-dispsys compatible

8a89794

In MT6589, this IP is called "dispsys" for some reason. I don't know more than that. Signed-off-by: Akari Tsuyukusa <akkun11.open@gmail.com>

dt-bindings: clock: mediatek: drop mediatek,mt6589-dispsys

9a86b5f

It's in Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.yaml now. Signed-off-by: Akari Tsuyukusa <akkun11.open@gmail.com>

soc: mediatek: mmsys: init mt6589 support

8577ea9

everyone will say "fixme" Signed-off-by: Akari Tsuyukusa <akkun11.open@gmail.com>

akku1139 added 2 commits March 15, 2026 00:44

drm: mediatek: dsi: add mt6589 support

1c84749

Signed-off-by: Akari Tsuyukusa <akkun11.open@gmail.com>

dt-bindings: display: mediatek: dsi: add mt6589

ee18d10

Signed-off-by: Akari Tsuyukusa <akkun11.open@gmail.com>

akku1139 added 5 commits March 17, 2026 10:47

dt-bindings: mtk-smi-common: fix for gen0

7a01654

arm: dts: mediatek: mt6589: fix syntax

2e64fc9

Signed-off-by: Akari Tsuyukusa <akkun11.open@gmail.com>

Revert "iommu: mtk_iommu_v1: add more larb_port_offset"

4efe3c8

This reverts commit 6316de5.

memory: mtk-smi: fix mt6589 compatible name

38c2992

Signed-off-by: Akari Tsuyukusa <akkun11.open@gmail.com>

dt-bindings: memory: mt6589-larb-port: fix for v1

b0c470a

akku1139 added the Porting label Jun 21, 2026

akku1139 added 3 commits June 22, 2026 00:54

Merge branch 'blade/v6.16' into dev/v6.16/mt6589-drm

06107a2

arm: defconfig: lenovo-blade: use SIMPLEDRM insted of FB_SIMPLE

04ae9f1

Signed-off-by: Akari Tsuyukusa <akkun11.open@gmail.com>

iommu/memory/dt-bindings: rename MediaTek macro name

0d7879b

Signed-off-by: Akari Tsuyukusa <akkun11.open@gmail.com>

wip: iommu: introduce MT6589 M4U driver

d84fec8

Signed-off-by: Akari Tsuyukusa <akkun11.open@gmail.com>

wip: iommu: mtk_iommu_mt6589: cleanup

c7c60f8

Signed-off-by: Akari Tsuyukusa <akkun11.open@gmail.com>

akku1139 added 2 commits June 22, 2026 23:52

arm: dts: mediatek: mt6589: change iommu for feature changes

1f1a6ac

Signed-off-by: Akari Tsuyukusa <akkun11.open@gmail.com>

arm: dts: mediatek: mt6589: add iommu interrupt-names

af85840

Signed-off-by: Akari Tsuyukusa <akkun11.open@gmail.com>

Merge branch 'blade/v6.16' into dev/v6.16/mt6589-drm

fabdd4b

akku1139 added 3 commits June 30, 2026 12:51

iommu: drop mt6589's

f677e5a

iommu/mediatek-v1: add larb port offset prefix

f01ef22

memory: mtk-smi: update mt6589 port_in_larb based on smi_port0_in_larbx

8005cab

akku1139 added 2 commits June 30, 2026 20:52

Merge branch 'blade/v6.16' into dev/v6.16/mt6589-drm

a671691

Merge branch 'blade/v6.16' into dev/v6.16/mt6589-drm

ec36725

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