104 Commits

Author	SHA1	Message	Date
Yuan Yao	f1cd8c8792	serial: fsl_lpuart: add DMA support ... Add dma support for lpuart. This function depend on DMA driver. You can turn on it by write both the dmas and dma-name properties in dts node. Signed-off-by: Yuan Yao <yao.yuan@freescale.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>	2014-02-18 12:50:26 -08:00
Axel Lin	39c34b09f2	serial: fsl_lpuart: Return proper error on lpuart_serial_init error path ... Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>	2013-07-26 16:01:20 -07:00
Shawn Guo	bc764b8fdb	serial: fsl_lpuart: restore UARTCR2 after watermark setup is done ... Function lpuart_setup_watermark() clears some bits in register UARTCR2 before writing FIFO configuration registers as required by hardware. But it should restore UARTCR2 after that. Otherwise, we end up changing UARTCR2 register when setting up watermark, and that is not really desirable. At least, when low-level debug and earlyprint is enabled, serial console is broken due to it. Fix the problem by restoring UARTCR2 register at the end of function lpuart_setup_watermark(). Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>	2013-07-26 16:01:20 -07:00
Jingchang Lu	c9e2e946fb	tty: serial: add Freescale lpuart driver support ... 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@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>	2013-06-08 22:30:44 -07:00