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From: Liu Ying <victor.liu@nxp.com>
To: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Cc: robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org,
	shawnguo@kernel.org, s.hauer@pengutronix.de,
	kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com,
	saravanak@google.com, gregkh@linuxfoundation.org,
	geert+renesas@glider.be
Subject: [PATCH 0/3] drivers: bus: Add Freescale i.MX8qxp pixel link MSI bus support
Date: Tue,  2 Aug 2022 15:13:07 +0800	[thread overview]
Message-ID: <20220802071310.2650864-1-victor.liu@nxp.com> (raw)

Hi,

This series aims to add Freescale i.MX8qxp pixel link MSI bus support
by using the existing simple-pm-bus driver. A power domain and two input
clocks need to be enabled before the MSI bus accesses it's child devices,
which matches what a simple power-managed bus is(See simple-pm-bus.yaml).

Patch 1 adds support to populate simple MFD child devices in the
simple-pm-bus driver, since the MSI bus may connect those devices.

Patch 2 enables/disables functional clock(s) as a bulk in the
simple-pm-bus driver when the simple-pm-bus is being power managed,
since the MSI bus takes the two input clocks as functional clocks.

Patch 3 adds dt-bindings for the MSI bus.

Liu Ying (3):
  drivers: bus: simple-pm-bus: Populate simple MFD child devices
  drivers: bus: simple-pm-bus: Use clocks
  dt-bindings: bus: Add Freescale i.MX8qxp pixel link MSI bus binding

 .../bus/fsl,imx8qxp-pixel-link-msi-bus.yaml   | 84 +++++++++++++++++++
 drivers/bus/simple-pm-bus.c                   | 61 +++++++++++++-
 2 files changed, 144 insertions(+), 1 deletion(-)
 create mode 100644 Documentation/devicetree/bindings/bus/fsl,imx8qxp-pixel-link-msi-bus.yaml

-- 
2.25.1


             reply	other threads:[~2022-08-02  7:12 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-02  7:13 Liu Ying [this message]
2022-08-02  7:13 ` [PATCH 1/3] drivers: bus: simple-pm-bus: Populate simple MFD child devices Liu Ying
2022-08-02  7:13 ` [PATCH 2/3] drivers: bus: simple-pm-bus: Use clocks Liu Ying
2022-08-02 10:56   ` Krzysztof Kozlowski
2022-08-02 10:59     ` Krzysztof Kozlowski
2022-08-02  7:13 ` [PATCH 3/3] dt-bindings: bus: Add Freescale i.MX8qxp pixel link MSI bus binding Liu Ying
2022-08-02 11:04   ` Krzysztof Kozlowski
2022-08-02 15:47     ` Liu Ying

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