linux-kernel - [PATCH v7 0/7] Refactor MTK MDP driver into core/components

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Date:   Wed, 25 Aug 2021 16:33:16 +1000
From:   Eizan Miyamoto <eizan@...omium.org>
To:     linux-kernel@...r.kernel.org
Cc:     chunkuang.hu@...nel.org, yong.wu@...iatek.com, wenst@...omium.org,
        ck.hu@...iatek.com, houlong.wei@...iatek.com,
        enric.balletbo@...labora.com, yongqiang.niu@...iatek.com,
        Eizan Miyamoto <eizan@...omium.org>,
        Andrew-CT Chen <andrew-ct.chen@...iatek.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Minghsiu Tsai <minghsiu.tsai@...iatek.com>,
        linux-arm-kernel@...ts.infradead.org, linux-media@...r.kernel.org,
        linux-mediatek@...ts.infradead.org
Subject: [PATCH v7 0/7] Refactor MTK MDP driver into core/components


This is an update to
https://patchwork.kernel.org/project/linux-mediatek/list/?series=283075
To address some comments and fixes.

This series has been verified to work on 5.13.


Changes in v7:
- Drop last two changes from this series related to removing the vpu
  property from the mdp_rdma0 device node

Changes in v6:
- Don't propagate errors from clock_on/off as an afterthought.
- Split apart modifying mdp driver to be loadable from mmsys from
  actually loading it from mmsys into two changs to make review easier.
- Update devicetree bindings to reflect no longer needing the
  mediatek,vpu property in the mdp_rdma0 device node.
- Some stylistic cleanups.

Changes in v5:
- rebase and test on 5.13-next @ e2f74b13dbe6

Changes in v4:
- rebase and test on 5.13
- don't depend on https://patchwork.kernel.org/project/linux-mediatek/list/?series=464873

Changes in v3:
- get mdp master from aliases instead of strcmp against of_node->name

Changes in v2:
- rebased onto Linux 5.12
- 100 char line length allowance was utilized in a few places
- Removal of a redundant dev_err() print at the end of
  mtk_mdp_comp_init()
- Instead of printing errors and ignoring them, I've added a patch to
  correctly propagate them.
- Use of C style comments.
- Three additional patches were added to eliminate dependency on the
  mediatek,vpu property inside the mdp_rdma0 device node.

Eizan Miyamoto (7):
  mtk-mdp: propagate errors from clock_on
  mtk-mdp: add driver to probe mdp components
  mtk-mdp: use pm_runtime in MDP component driver
  media: mtk-mdp: don't pm_run_time_get/put for master comp in clock_on
  mtk-mdp: make mdp driver to be loadable by platform_device_register*()
  soc: mediatek: mmsys: instantiate mdp virtual device from mmsys
  media: mtk-mdp: use mdp-rdma0 alias to point to MDP master

 drivers/media/platform/mtk-mdp/mtk_mdp_comp.c | 268 +++++++++++++++--
 drivers/media/platform/mtk-mdp/mtk_mdp_comp.h |  34 +--
 drivers/media/platform/mtk-mdp/mtk_mdp_core.c | 282 ++++++++++++------
 drivers/media/platform/mtk-mdp/mtk_mdp_core.h |   3 +
 drivers/media/platform/mtk-mdp/mtk_mdp_m2m.c  |   4 +-
 drivers/soc/mediatek/mtk-mmsys.c              |  20 +-
 6 files changed, 470 insertions(+), 141 deletions(-)

-- 
2.33.0.rc2.250.ged5fa647cd-goog