[PATCH v2 00/12] Clean up "mediatek,larb" after adding device_link

Yong Wu
2019-06-10T12:55:01Z

MediaTek IOMMU block diagram always like below:

M4U
|
smi-common
|
-------------
| | ...
| |
larb1 larb2
| |
vdec venc

All the consumer connect with smi-larb, then connect with smi-common.

MediaTek IOMMU don't have its power-domain. When the consumer works,
it should enable the smi-larb's power which also need enable the smi-common's
power firstly.

Thus, Firstly, use the device link connect the consumer and the
smi-larbs. then add device link between the smi-larb and smi-common.

After adding the device_link, then "mediatek,larb" property can be removed.
the iommu consumer don't need call the mtk_smi_larb_get/put to enable
the power and clock of smi-larb and smi-common.

This patchset depends on "MT8183 IOMMU SUPPORT"[1].

[1] https://lists.linuxfoundation.org/pipermail/iommu/2019-June/036552.html

Change notes:
v2:
1) rebase on v5.2-rc1.
2) Move adding device_link between the consumer and smi-larb into
iommu_add_device from Robin.
3) add DL_FLAG_AUTOREMOVE_CONSUMER even though the smi is built-in from Evan.
4) Remove the shutdown callback in iommu.

v1: https://lists.linuxfoundation.org/pipermail/iommu/2019-January/032387.html

Yong Wu (12):
dt-binding: mediatek: Get rid of mediatek,larb for multimedia HW
iommu/mediatek: Add probe_defer for smi-larb
iommu/mediatek: Add device_link between the consumer and the larb
devices
memory: mtk-smi: Add device-link between smi-larb and smi-common
media: mtk-jpeg: Get rid of mtk_smi_larb_get/put
media: mtk-mdp: Get rid of mtk_smi_larb_get/put
media: mtk-vcodec: Get rid of mtk_smi_larb_get/put
drm/mediatek: Get rid of mtk_smi_larb_get/put
memory: mtk-smi: Get rid of mtk_smi_larb_get/put
iommu/mediatek: Use builtin_platform_driver
arm: dts: mediatek: Get rid of mediatek,larb for MM nodes
arm64: dts: mediatek: Get rid of mediatek,larb for MM nodes

.../bindings/display/mediatek/mediatek,disp.txt | 9 -----
.../bindings/media/mediatek-jpeg-decoder.txt | 4 --
.../devicetree/bindings/media/mediatek-mdp.txt | 8 ----
.../devicetree/bindings/media/mediatek-vcodec.txt | 4 --
arch/arm/boot/dts/mt2701.dtsi | 1 -
arch/arm/boot/dts/mt7623.dtsi | 1 -
arch/arm64/boot/dts/mediatek/mt8173.dtsi | 15 -------
drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 11 -----
drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 26 ------------
drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h | 1 -
drivers/iommu/mtk_iommu.c | 45 +++++++--------------
drivers/iommu/mtk_iommu_v1.c | 39 +++++++-----------
drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c | 22 ----------
drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h | 2 -
drivers/media/platform/mtk-mdp/mtk_mdp_comp.c | 38 -----------------
drivers/media/platform/mtk-mdp/mtk_mdp_comp.h | 2 -
drivers/media/platform/mtk-mdp/mtk_mdp_core.c | 1 -
.../media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c | 21 ----------
drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h | 3 --
drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c | 1 -
.../media/platform/mtk-vcodec/mtk_vcodec_enc_pm.c | 47 ----------------------
drivers/memory/mtk-smi.c | 31 ++++----------
include/soc/mediatek/smi.h | 20 ---------
23 files changed, 36 insertions(+), 316 deletions(-)

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1.9.1