On Wed, 2017-08-02 at 20:14 +0300, Andy Shevchenko wrote: > On Thu, 2017-08-03 at 01:05 +0800, sean.wang@xxxxxxxxxxxx wrote: > > From: Sean Wang <sean.wang@xxxxxxxxxxxx> > > > > This patchset introduces the support for MediaTek BTIF controller. > > > > MediaTek BTIF controller is the serial interface similar to UART but > > it > > works only as the digital device which is mainly used to communicate > > with > > the connectivity module also called CONNSYS inside the SoC which could > > be > > mostly found on those MediaTek SoCs with Bluetooth feature. > > > > And the controller is made as being compatible with the 8250 register > > layout so it tends to be integrated with existing 8250 core driver and > > have no requirement for the modem configuration additionally such as > > the > > baud rate calculation and assignment. > > > Why it requires a separate driver? > > 8250_of is for DT enabled drivers. > Hi, Andy thanks for your information the hardware is not completely identical to 8250 device, it has extra registers belonged to platform control such as internal loopback, dma disable/enable, sleep/wakeup setup and so on, so I create it as a separate driver. Sean > > > > Sean Wang (2): > > dt-bindings: serial: Add MediaTek BTIF controller bindings > > tty: serial: 8250: Add MediaTek BTIF controller on MT7622 and MT7623 > > SoC > > > > .../devicetree/bindings/serial/mtk-btif.txt | 26 +++ > > drivers/tty/serial/8250/8250_btif.c | 224 > > +++++++++++++++++++++ > > drivers/tty/serial/8250/Kconfig | 9 + > > drivers/tty/serial/8250/Makefile | 1 + > > 4 files changed, 260 insertions(+) > > create mode 100644 Documentation/devicetree/bindings/serial/mtk- > > btif.txt > > create mode 100644 drivers/tty/serial/8250/8250_btif.c > > > -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
