linux-dev/Documentation/devicetree/bindings/mfd/syscon.txt, branch master

dt-bindings: Add syscon YAML description

2019-11-14T22:32:17Z

The syscon binding is a pretty loose one, with everyone having a bunch of vendor specific compatibles. In order to start the effort to describe them using YAML, let's create a binding that tolerates additional, not listed, compatibles. Signed-off-by: Maxime Ripard Signed-off-by: Rob Herring

mfd: syscon: Add hardware spinlock support

2018-01-12T18:32:55Z

Some system control registers need hardware spinlock to synchronize between the multiple subsystems, so we should add hardware spinlock support for syscon. Signed-off-by: Baolin Wang Acked-by: Rob Herring Acked-by: Lee Jones Signed-off-by: Mark Brown

dt-bindings: Remove leading zeros from bindings notation

2017-11-09T23:05:05Z

Improve the binding example by removing all the leading zeros to fix the following dtc warnings: Warning (unit_address_format): Node /XXX unit name should not have leading 0s Converted using the following command: perl -p -i -e 's/\@0+([0-9a-f])/\@$1/g' `find ./Documentation/devicetree/bindings "*.txt"` Some unnecessary changes were manually fixed. Signed-off-by: Marco Franchi Signed-off-by: Rob Herring

mfd: syscon: Add a DT property to set value width

2016-01-11T06:08:02Z

Currently syscon has a fixed configuration of 32 bits for register and values widths. In some cases, it would be desirable to be able to customize the value width. For example, certain boards (like the ones manufactured by Technologic Systems) have a FPGA that is memory-mapped, but its registers are only 16-bit wide. This patch adds an optional "reg-io-width" DT binding for syscon that allows to change the width for the data bus (i.e. val_bits). If this property is provided, it will also set the register stride to reg-io-width's value. If not provided, the default configuration is used. Signed-off-by: Damien Riegel Acked-by: Rob Herring Acked-by: Arnd Bergmann Signed-off-by: Lee Jones

mfd: Add syscon driver based on regmap

2012-09-17T13:24:14Z

Add regmap based syscon driver. This is usually used for access misc bits in registers which does not belong to a specific module, for example, IMX IOMUXC GPR and ANATOP. With this driver, client can use generic regmap API to access registers which are registered into syscon. Reviewed-by: Mark Brown Acked-by: Stephen Warren Signed-off-by: Dong Aisheng Signed-off-by: Samuel Ortiz