From: Peter Hurley <peter@hurleysoftware.com>
To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: "Bryan O'Donoghue" <pure.logic@nexus-software.ie>,
linux-serial@vger.kernel.org, Vinod Koul <vinod.koul@intel.com>,
linux-kernel@vger.kernel.org, dmaengine@vger.kernel.org,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
ismo.puustinen@intel.com,
Heikki Krogerus <heikki.krogerus@linux.intel.com>
Subject: Re: [PATCH v2 07/11] serial: 8250: enable AFE on ports where FIFO is 16 bytes
Date: Mon, 11 Apr 2016 07:53:07 -0700 [thread overview]
Message-ID: <570BBA53.4080508@hurleysoftware.com> (raw)
In-Reply-To: <1460379071-132591-8-git-send-email-andriy.shevchenko@linux.intel.com>
On 04/11/2016 05:51 AM, Andy Shevchenko wrote:
> Intel Quark has 16550A compatible UART with autoflow feature enabled. It has
> only 16 bytes of FIFO. Currently serial8250_do_set_termios() prevents to enable
> autoflow since the minimum requirement of 32 bytes of FIFO size.
>
> Drop a FIFO size limitation to allow autoflow control be enabled on such UARTs.
>
> While here, comment out UART_CAP_AFE for PORT_AR7 since it wasn't working and
> it will be not a good idea to use it in conjunction with trigger level of 1
> byte.
Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
next prev parent reply other threads:[~2016-04-11 14:53 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-11 12:51 [PATCH v2 00/11] serial: 8250: split LPSS to 8250_lpss, enable DMA on Quark Andy Shevchenko
2016-04-11 12:51 ` [PATCH v2 01/11] dmaengine: dw: keep copy of custom slave config in dwc Andy Shevchenko
2016-04-11 12:51 ` [PATCH v2 02/11] dmaengine: dw: provide probe(), remove() stubs for users Andy Shevchenko
2016-04-11 12:51 ` [PATCH v2 03/11] dmaengine: dw: set polarity of handshake interface Andy Shevchenko
2016-04-11 12:51 ` [PATCH v2 04/11] dmaengine: dw: override LLP support if asked in platform data Andy Shevchenko
2016-04-11 12:51 ` [PATCH v2 05/11] serial: 8250_dma: switch to new dmaengine_terminate_* API Andy Shevchenko
2016-04-12 6:45 ` Heikki Krogerus
2016-04-11 12:51 ` [PATCH v2 06/11] serial: 8250_dma: adjust DMA address of the UART Andy Shevchenko
2016-04-12 6:46 ` Heikki Krogerus
2016-04-11 12:51 ` [PATCH v2 07/11] serial: 8250: enable AFE on ports where FIFO is 16 bytes Andy Shevchenko
2016-04-11 14:53 ` Peter Hurley [this message]
2016-04-11 12:51 ` [PATCH v2 08/11] serial: 8250_lpss: split LPSS driver to separate module Andy Shevchenko
2016-04-11 12:51 ` [PATCH v2 09/11] serial: 8250_lpss: move Quark code from PCI driver Andy Shevchenko
2016-04-11 12:51 ` [PATCH v2 10/11] serial: 8250_lpss: enable MSI for Intel Quark Andy Shevchenko
2016-04-11 12:51 ` [PATCH v2 11/11] serial: 8250_lpss: enable DMA on Intel Quark UART Andy Shevchenko
2016-04-20 13:29 ` [PATCH v2 00/11] serial: 8250: split LPSS to 8250_lpss, enable DMA on Quark Vinod Koul
2016-04-20 14:05 ` Andy Shevchenko
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