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Date: Tue, 16 Sep 2014 18:55:37 +0200 From: Sebastian Andrzej Siewior <bigeasy@...utronix.de> To: Peter Hurley <peter@...leysoftware.com>, Heikki Krogerus <heikki.krogerus@...ux.intel.com> CC: linux-serial@...r.kernel.org, linux-kernel@...r.kernel.org, linux-omap@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, tony@...mide.com, balbi@...com, gregkh@...uxfoundation.org, Alan Cox <alan@...ux.intel.com> Subject: Re: [PATCH 09/16] tty: serial: 8250_dma: Add a TX trigger workaround for AM33xx On 09/15/2014 07:01 PM, Sebastian Andrzej Siewior wrote: > On 09/11/2014 04:35 PM, Peter Hurley wrote: >> I do need to find out if omap hardware sets UART_MSR_DCTS when auto CTS >> is on. Would you mind running the debug patch below with HW flow control on? > > I didn't forget about this. However I told minicom to use hardware flow > control (and I see the driver set the HW bit) but I haven't seen that > uart_handle_cts_change() has been invoked at all. I'm going to check > two other boards and report then. No, I don't get into this at all function. So I connected my am335x-evm with beagle board xm because both of them have an old fashion UART connector (instead those uart-to-usb). Both configured with HW-Flow and I haven't seen the function invoked but I saw "port->icount.overrun" being incremented. This shouldn't happen. So I am a little puzzled here⦠>> Regards, >> Peter Hurley > Sebastian -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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