linux-kernel - [PATCH 0/4] soc: imx: add i.MX BLK-CTL support

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Message-Id: <20210429073331.21204-1-peng.fan@oss.nxp.com>
Date:   Thu, 29 Apr 2021 15:33:27 +0800
From:   "Peng Fan (OSS)" <peng.fan@....nxp.com>
To:     robh+dt@...nel.org, shawnguo@...nel.org, s.hauer@...gutronix.de
Cc:     kernel@...gutronix.de, festevam@...il.com, linux-imx@....com,
        p.zabel@...gutronix.de, l.stach@...gutronix.de, krzk@...nel.org,
        agx@...xcpu.org, marex@...x.de, andrew.smirnov@...il.com,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, ping.bai@....com,
        frieder.schrempf@...tron.de, aford173@...il.com, abel.vesa@....com,
        Peng Fan <peng.fan@....com>
Subject: [PATCH 0/4] soc: imx: add i.MX BLK-CTL support

From: Peng Fan <peng.fan@....com>

Previously there is an effort from Abel that take BLK-CTL as clock
provider, but it turns out that there is A/B lock issue and we are
not able resolve that.

Per discuss with Lucas and Jacky, we made an agreement that take BLK-CTL
as a power domain provider and use GPC's domain as parent, the consumer
node take BLK-CTL as power domain input.

This patchset has been tested on i.MX8MM EVK board, but one hack
is not included in the patchset is that the DISPMIX BLK-CTL MIPI_M/S_RESET
not implemented. Per Lucas, we will finally have a MIPI DPHY driver,
so fine to leave it.

Thanks for Lucas's suggestion, Frieder Schrempf for collecting
all the patches, Abel's previous BLK-CTL work, Jacky Bai on help
debug issues.

Peng Fan (4):
  dt-bindings: power: Add defines for i.MX8MM BLK-CTL power domains
  Documentation: bindings: clk: Add bindings for i.MX BLK_CTL
  soc: imx: Add generic blk-ctl driver
  soc: imx: Add blk-ctl driver for i.MX8MM

 .../bindings/soc/imx/fsl,imx-blk-ctl.yaml     |  73 +++++
 drivers/soc/imx/Makefile                      |   2 +-
 drivers/soc/imx/blk-ctl-imx8mm.c              | 138 ++++++++
 drivers/soc/imx/blk-ctl.c                     | 303 ++++++++++++++++++
 drivers/soc/imx/blk-ctl.h                     |  76 +++++
 include/dt-bindings/power/imx8mm-power.h      |  11 +
 6 files changed, 602 insertions(+), 1 deletion(-)
 create mode 100644 Documentation/devicetree/bindings/soc/imx/fsl,imx-blk-ctl.yaml
 create mode 100644 drivers/soc/imx/blk-ctl-imx8mm.c
 create mode 100644 drivers/soc/imx/blk-ctl.c
 create mode 100644 drivers/soc/imx/blk-ctl.h

-- 
2.30.0