BMC/Intel-BMC/linux.git/Documentation/devicetree/bindings/serial, branch dev-4.4

drivers/serial: Add driver for Aspeed virtual UART

2016-03-21T01:06:22+00:00

This change adds a driver for the 16550-based Aspeed virtual UART device. We use a similar process to the of_serial driver for device probe, but expose some VUART-specific functions through sysfs too. If host TX discard mode is enabled, we don't see the LSR[RBR} bit getting set on new characters written on the host side. This makes the VUART a little useless. OpenPOWER firmware doesn't like it when the host-side of the VUART's FIFO is not drained. This change only disables host TX discard mode when the port is in use. We set the VUART enabled bit when we bind to the device, and clear it on unbind. We don't want to do this on open/release, as the host may be using this bit to configure serial output modes, which is independent of whether the devices has been opened by BMC userspace. Signed-off-by: Jeremy Kerr Signed-off-by: Joel Stanley

Merge tag 'devicetree-for-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

2015-11-06T20:17:09+00:00

Pull DeviceTree updates from Rob Herring: "A fairly large (by DT standards) pull request this time with the majority being some overdue moving DT binding docs around to consolidate similar bindings. - DT binding doc consolidation moving similar bindings to common locations. The majority of these are display related which were scattered in video/, fb/, drm/, gpu/, and panel/ directories. - Add new config option, CONFIG_OF_ALL_DTBS, to enable building all dtbs in the tree for most arches with dts files (except powerpc for now). - OF_IRQ=n fixes for user enabled CONFIG_OF. - of_node_put ref counting fixes from Julia Lawall. - Common DT binding for wakeup-source and deprecation of all similar bindings. - DT binding for PXA LCD controller. - Allow ignoring failed PCI resource translations in order to ignore 64-bit addresses on non-LPAE 32-bit kernels. - Support setting the NUMA node from DT instead of only from parent device. - Couple of earlycon DT parsing fixes for address and options" * tag 'devicetree-for-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (45 commits) MAINTAINERS: update DT binding doc locations devicetree: add Sigma Designs vendor prefix of: simplify arch_find_n_match_cpu_physical_id() function Documentation: arm: Fixed typo in socfpga fpga mgr example Documentation: devicetree: fix reference to legacy wakeup properties Documentation: devicetree: standardize/consolidate on "wakeup-source" property drivers: of: removing assignment of 0 to static variable xtensa: enable building of all dtbs mips: enable building of all dtbs metag: enable building of all dtbs metag: use common make variables for dtb builds h8300: enable building of all dtbs arm64: enable building of all dtbs arm: enable building of all dtbs arc: enable building of all dtbs arc: use common make variables for dtb builds of: add config option to enable building of all dtbs of/fdt: fix error checking for earlycon address of/overlay: add missing of_node_put of/platform: add missing of_node_put ...

serial: pl011: Spelling s/clocks-names/clock-names/

2015-10-22T14:23:56+00:00

Signed-off-by: Geert Uytterhoeven Signed-off-by: Rob Herring

serial: pl011: Spelling s/clocks-names/clock-names/

2015-10-18T04:18:30+00:00

Signed-off-by: Geert Uytterhoeven Signed-off-by: Greg Kroah-Hartman

DT: ARM: pxa: Remove incorrect binding from documentation

2015-10-13T18:31:21+00:00

Remove "mrvl,lpss-ssp" property from documentation because LPSS SSP type is for certain Intel platforms. I believe commit a6e56c28a178 ("ARM: pxa: ssp: add DT bindings") added it by accident by copying all enum pxa_ssp_type types from include/linux/pxa2xx_ssp.h. Please note this was removed from arch/arm/plat-pxa/ssp.c by the commit b692cb83b14d ("ARM: pxa: ssp: Fix build error by removing originally incorrect DT binding"). Signed-off-by: Jarkko Nikula Signed-off-by: Rob Herring

tty: serial: msm: Add RX DMA support

2015-10-04T18:15:17+00:00

Add receive DMA support for UARTDM type of controllers. Tested on APQ8064, which have UARTDM v1.3 and ADM DMA engine and APQ8016, which have UARTDM v1.4 and BAM DMA engine. Signed-off-by: Ivan T. Ivanov Signed-off-by: Greg Kroah-Hartman

tty: serial: msm: Add TX DMA support

2015-10-04T18:15:17+00:00

Add transmit DMA support for UARTDM type of controllers. Tested on APQ8064, which have UARTDM v1.3 and ADM DMA engine and APQ8016, which have UARTDM v1.4 and BAM DMA engine. Signed-off-by: Ivan T. Ivanov Signed-off-by: Greg Kroah-Hartman

serial: 8250_dw: proper support for UARTs without busy functionality

2015-10-04T17:38:45+00:00

If the DW_apb_uart is configured with UART_16550_COMPATIBLE configuration parameter set, then the Busy Functionality is not available. These UARTs will never generate the Busy detect indication interrupt, and therefore don't need handling for it. This creates a small optimization for the DW_apb_uarts configured without the busy functionality, but more importantly, it removes the small but real risk of hitting potential issues caused by busy functionality handling when no busy functionality exist. Signed-off-by: Heikki Krogerus Reviewed-by: Andy Shevchenko Signed-off-by: Greg Kroah-Hartman

devicetree: Add JZ4760/JZ4775 to Ingenic SoC UART binding

2015-10-04T16:47:49+00:00

Add these variants of the UART as compatible strings Signed-off-by: Matt Redfearn blah Signed-off-by: Greg Kroah-Hartman

serial: sh-sci: Add device tree support for r8a7795

2015-10-04T16:35:35+00:00

Signed-off-by: Kuninori Morimoto Signed-off-by: Geert Uytterhoeven Reviewed-by: Simon Horman Signed-off-by: Greg Kroah-Hartman