On Thu, May 30, 2013 at 01:53:37PM +0800, Jingchang Lu wrote:
> Add Freescale lpuart driver support. The lpuart device
> can be found on Vybrid VF610 and Layerscape LS-1 SoCs.
>
> Signed-off-by: Jingchang Lu <b35083@xxxxxxxxxxxxx>
> Acked-by: Shawn Guo <shawn.guo@xxxxxxxxxx>
> ---
> changes in v5:
> Coding style fix, remove redundant code.
> Checking clk_prepare_enable return value.
> Using devm_ioremap_resource instead of devm_request_and_ioremap.
>
> changes in v4:
> Change Vybrid VF610 SoC compatible string to "fsl,vf610-lpuart"
>
> changes in v3:
> Use general driver name lpuart instead of mvf for further share between SoCs.
> Add bind doc in Documentation/devicetree/bindings/tty/serial.
> Remove unused #include header lines and clean up code.
>
> changes in v2:
> Remove unused variables and clean up the code.
>
> .../devicetree/bindings/tty/serial/fsl-lpuart.txt | 14 +
> drivers/tty/serial/Kconfig | 14 +
> drivers/tty/serial/Makefile | 1 +
> drivers/tty/serial/fsl_lpuart.c | 873 +++++++++++++++++++++
> include/uapi/linux/serial_core.h | 3 +
> 5 files changed, 905 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/tty/serial/fsl-lpuart.txt
> create mode 100644 drivers/tty/serial/fsl_lpuart.c
>
> diff --git a/Documentation/devicetree/bindings/tty/serial/fsl-lpuart.txt b/Documentation/devicetree/bindings/tty/serial/fsl-lpuart.txt
> new file mode 100644
> index 0000000..6fd1dd1
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/tty/serial/fsl-lpuart.txt
> @@ -0,0 +1,14 @@
> +* Freescale low power universal asynchronous receiver/transmitter (lpuart)
> +
> +Required properties:
> +- compatible : Should be "fsl,<soc>-lpuart"
> +- reg : Address and length of the register set for the device
> +- interrupts : Should contain uart interrupt
> +
> +Example:
> +
> +uart0: serial@40027000 {
> + compatible = "fsl,vf610-lpuart";
> + reg = <0x40027000 0x1000>;
> + interrupts = <0 61 0x00>;
> + };
> diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig
> index 7e7006f..aee7030 100644
> --- a/drivers/tty/serial/Kconfig
> +++ b/drivers/tty/serial/Kconfig
> @@ -1484,6 +1484,20 @@ config SERIAL_RP2_NR_UARTS
> If multiple cards are present, the default limit of 32 ports may
> need to be increased.
>
> +config SERIAL_FSL_LPUART
> + bool "Freescale lpuart serial port support"
Why can't this be built as a module? I can't force users to only build
this driver into the kernel, sorry.
greg k-h
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