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From: Geert Uytterhoeven <geert+renesas@glider.be>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jslaby@suse.com>,
	Eugeniu Rosca <erosca@de.adit-jv.com>
Cc: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>,
	Vinod Koul <vkoul@kernel.org>,
	Dan Williams <dan.j.williams@intel.com>,
	Wolfram Sang <wsa+renesas@sang-engineering.com>,
	linux-serial@vger.kernel.org, linux-renesas-soc@vger.kernel.org,
	dmaengine@vger.kernel.org,
	Geert Uytterhoeven <geert+renesas@glider.be>
Subject: [PATCH 0/2] serial: sh-sci: Fix .flush_buffer() issues
Date: Mon, 24 Jun 2019 14:35:38 +0200	[thread overview]
Message-ID: <20190624123540.20629-1-geert+renesas@glider.be> (raw)

	Hi Greg, Jiri,

This patch series attempts to fix the issues Eugeniu Rosca reported
seeing, where .flush_buffer() interfered with transmit DMA operation[*].

There's a third patch "dmaengine: rcar-dmac: Reject zero-length slave
DMA requests", which is related to the issue, but further independent,
hence submitted separately.

Eugeniu: does this fix the issues you were seeing?

Thanks for your comments!

[*] '[PATCH 2/6] Revert "arm64: dts: renesas: r8a7796: Enable DMA for SCIF2"'
(https://lore.kernel.org/lkml/20190504004258.23574-3-erosca@de.adit-jv.com/).

Geert Uytterhoeven (2):
  serial: sh-sci: Fix TX DMA buffer flushing and workqueue races
  serial: sh-sci: Terminate TX DMA during buffer flushing

 drivers/tty/serial/sh-sci.c | 33 ++++++++++++++++++++++++---------
 1 file changed, 24 insertions(+), 9 deletions(-)

-- 
2.17.1

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds

             reply	other threads:[~2019-06-24 12:35 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-24 12:35 Geert Uytterhoeven [this message]
2019-06-24 12:35 ` [PATCH 1/2] serial: sh-sci: Fix TX DMA buffer flushing and workqueue races Geert Uytterhoeven
2019-06-28 12:53   ` Eugeniu Rosca
2019-06-24 12:35 ` [PATCH 2/2] serial: sh-sci: Terminate TX DMA during buffer flushing Geert Uytterhoeven
2019-06-28 14:04   ` Eugeniu Rosca
2019-06-26 17:34 ` [PATCH 0/2] serial: sh-sci: Fix .flush_buffer() issues Eugeniu Rosca
2019-06-28 11:51   ` Geert Uytterhoeven
2019-06-28 12:39     ` Eugeniu Rosca
2019-06-28 12:55       ` Wolfram Sang
2019-06-28 13:02         ` Eugeniu Rosca
2019-06-28 13:14           ` Wolfram Sang
2019-07-03 17:30           ` Greg Kroah-Hartman
2019-07-03 18:15             ` Eugeniu Rosca
2019-07-03 18:44               ` Greg Kroah-Hartman
2019-07-03 21:08                 ` Wolfram Sang
2019-06-28 16:29     ` George G. Davis

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