| Message ID | 1392118632-11312-4-git-send-email-mark.rutland@arm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Tue, Feb 11, 2014 at 12:37 PM, Mark Rutland <mark.rutland@arm.com> wrote: > Currently the pl022 driver expects clocks, and dts provide them, yet the > binding does not mention clocks at all. > > This patch adds a description of the clocks, "apb_pclk" (as required by > the primecell binding) and "sspclk" for the pl022 itself. The "sspclk" > name was chosen to match the official documentation, as currently a > variety of names are used in its place; it is expected that any > operating system supporting these can continue to do so in the absence > of an "sspclk" entry. > > Signed-off-by: Mark Rutland <mark.rutland@arm.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Yours, Linus Walleij
diff --git a/Documentation/devicetree/bindings/spi/spi_pl022.txt b/Documentation/devicetree/bindings/spi/spi_pl022.txt index 22ed679..326e8e2 100644 --- a/Documentation/devicetree/bindings/spi/spi_pl022.txt +++ b/Documentation/devicetree/bindings/spi/spi_pl022.txt @@ -21,6 +21,8 @@ Optional properties: - dma-names: Names for the dma channels, if present. There must be at least one channel named "tx" for transmit and named "rx" for receive. +- clocks: phandle + clock-specifiers, one for each entry in clock-names. +- clock-names: should contain "apb_pclk" and "sspclk". SPI slave nodes must be children of the SPI master node and can
Currently the pl022 driver expects clocks, and dts provide them, yet the binding does not mention clocks at all. This patch adds a description of the clocks, "apb_pclk" (as required by the primecell binding) and "sspclk" for the pl022 itself. The "sspclk" name was chosen to match the official documentation, as currently a variety of names are used in its place; it is expected that any operating system supporting these can continue to do so in the absence of an "sspclk" entry. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Cc: Mark Brown <broonie@kernel.org> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Rob Herring <robh+dt@kernel.org> Cc: Pawel Moll <pawel.moll@arm.com> --- Documentation/devicetree/bindings/spi/spi_pl022.txt | 2 ++ 1 file changed, 2 insertions(+)