The Synopsys SSI Controller has an interface clock that must be explicitly enabled in order to access the registers. This patch series adds support for the interface clock and adds the associated bindings documentation. Phil Edworthy (2): dt: snps,dw-apb-ssi: Add clock bindings documentation spi: dw: Add support for an optional interface clock Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.txt | 10 +++++++++- drivers/spi/spi-dw-mmio.c | 12 ++++++++++++ 2 files changed, 21 insertions(+), 1 deletion(-) -- 2.7.4