[PATCH v2 0/4] spi: Add support for Amlogic Meson SPIFC

From: Beniamino Galvani
Date: Mon Nov 17 2014 - 17:50:33 EST


Hi,

this patchset adds a driver for the SPIFC (SPI flash controller)
available in Amlogic Meson6 and Meson8 SoCs. The driver has been
tested on a Meson8 based device to communicate with a Macronix
mx25l1606e serial flash.

The first patch adds a field to the spi_transfer structure that allows
the driver to know in transfer_one() whether the transfer is the last
one and change CS accordingly, without the need to reimplement
transfer_one_message().

Changes since v1 [ https://lkml.org/lkml/2014/11/9/35 ]:
- decrease busy wait timeout
- remove check on xfer->speed_hz value in meson_spifc_transfer_one()
- implement transfer_one() instead of transfer_one_message()
- remove useless memset of devdata
- use fixed regmap config
- implement PM operations
- don't set master->bus_num
- allow modular build of the driver

Beniamino Galvani (4):
spi: Add 'last' flag to spi_transfer structure
spi: meson: Add device tree bindings documentation for SPIFC
spi: meson: Add support for Amlogic Meson SPIFC
ARM: dts: meson: add node for SPIFC

.../devicetree/bindings/spi/spi-meson.txt | 22 +
arch/arm/boot/dts/meson.dtsi | 9 +
drivers/spi/Kconfig | 7 +
drivers/spi/Makefile | 1 +
drivers/spi/spi-meson-spifc.c | 461 +++++++++++++++++++++
drivers/spi/spi.c | 6 +
include/linux/spi/spi.h | 2 +
7 files changed, 508 insertions(+)
create mode 100644 Documentation/devicetree/bindings/spi/spi-meson.txt
create mode 100644 drivers/spi/spi-meson-spifc.c

--
1.9.1

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