From: Chris Packham <chris.packham@alliedtelesis.co.nz> To: broonie@kernel.org, robh+dt@kernel.org, mark.rutland@arm.com Cc: linux-spi@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Chris Packham <chris.packham@alliedtelesis.co.nz> Subject: [PATCH v2 0/2] SPI bus multiplexing Date: Thu, 23 Jan 2020 14:23:15 +1300 [thread overview] Message-ID: <20200123012317.14808-1-chris.packham@alliedtelesis.co.nz> (raw) This is a revisit of two earlier efforts to add more complex mutliplexing to SPI busses. https://patchwork.kernel.org/patch/2706151/ https://patchwork.kernel.org/patch/10897255/ This version makes use of the general purpose mux controller which simplifies things greatly. One outstanding problem is the need for the spi-max-frequency on the mux device. This is not used for anything and is just needed to satisfy the spi driver infrastructure which expects all spi devices to have this property. Chris Packham (2): dt-bindings: spi: Document binding for generic SPI multiplexer spi: Add generic SPI multiplexer .../devicetree/bindings/spi/spi-mux.yaml | 84 ++++++++ drivers/spi/Kconfig | 12 ++ drivers/spi/Makefile | 1 + drivers/spi/spi-mux.c | 189 ++++++++++++++++++ 4 files changed, 286 insertions(+) create mode 100644 Documentation/devicetree/bindings/spi/spi-mux.yaml create mode 100644 drivers/spi/spi-mux.c -- 2.25.0
WARNING: multiple messages have this Message-ID (diff)
From: Chris Packham <chris.packham-6g8wRflRTwXFdCa3tKVlE6U/zSkkHjvu@public.gmane.org> To: broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, mark.rutland-5wv7dgnIgG8@public.gmane.org Cc: linux-spi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Chris Packham <chris.packham-6g8wRflRTwXFdCa3tKVlE6U/zSkkHjvu@public.gmane.org> Subject: [PATCH v2 0/2] SPI bus multiplexing Date: Thu, 23 Jan 2020 14:23:15 +1300 [thread overview] Message-ID: <20200123012317.14808-1-chris.packham@alliedtelesis.co.nz> (raw) This is a revisit of two earlier efforts to add more complex mutliplexing to SPI busses. https://patchwork.kernel.org/patch/2706151/ https://patchwork.kernel.org/patch/10897255/ This version makes use of the general purpose mux controller which simplifies things greatly. One outstanding problem is the need for the spi-max-frequency on the mux device. This is not used for anything and is just needed to satisfy the spi driver infrastructure which expects all spi devices to have this property. Chris Packham (2): dt-bindings: spi: Document binding for generic SPI multiplexer spi: Add generic SPI multiplexer .../devicetree/bindings/spi/spi-mux.yaml | 84 ++++++++ drivers/spi/Kconfig | 12 ++ drivers/spi/Makefile | 1 + drivers/spi/spi-mux.c | 189 ++++++++++++++++++ 4 files changed, 286 insertions(+) create mode 100644 Documentation/devicetree/bindings/spi/spi-mux.yaml create mode 100644 drivers/spi/spi-mux.c -- 2.25.0
next reply other threads:[~2020-01-23 1:24 UTC|newest] Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-01-23 1:23 Chris Packham [this message] 2020-01-23 1:23 ` [PATCH v2 0/2] SPI bus multiplexing Chris Packham 2020-01-23 1:23 ` [PATCH v2 1/2] dt-bindings: spi: Document binding for generic SPI multiplexer Chris Packham 2020-01-23 1:23 ` Chris Packham 2020-01-23 13:51 ` Rob Herring 2020-01-26 20:23 ` Chris Packham 2020-01-26 20:23 ` Chris Packham 2020-01-27 13:56 ` Rob Herring 2020-01-23 1:23 ` [PATCH v2 2/2] spi: Add " Chris Packham 2020-01-23 1:23 ` Chris Packham
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