From: Frode Isaksen <fisaksen-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
To: nsekhar-l0cyMroinI0@public.gmane.org,
khilman-rdvid1DuHRBWk0Htik3J/w@public.gmane.org,
ptitiano-rdvid1DuHRBWk0Htik3J/w@public.gmane.org,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
Cc: broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
linux-spi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: [PATCH v2 0/6] Enable DMA for daVinci SPI controller
Date: Fri, 17 Feb 2017 11:38:18 +0100 [thread overview]
Message-ID: <1487327904-28311-1-git-send-email-fisaksen@baylibre.com> (raw)
Enable DMA for the daVinci SPI using the SPI framework DMA mapping
function. Add fixes caused by large numer of SG entries
and VIVT cache.
Also, add some extra options to the spi-loopback-test
module to catch errors caused by many SG entries.
This has been tested using spidev_test, spi-loopback-test and
mounting and read/write UBIFS volume over SPI flash.
v2 changes:
- Use SPI_MASTER_MUST_ flag(s) for dummy buffer allocation (thanks
Mark Brown).
- For rx-only transfers, use rx buffer as dummy tx buffer to avoid
errors with more than 20 SG entries.
- Improved comments and use #define for contants.
- Abandon patches to set loopback and limit transfer size in
spi-loopback-test.
Thanks,
Frode
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next reply other threads:[~2017-02-17 10:38 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-17 10:38 Frode Isaksen [this message]
[not found] ` <1487327904-28311-1-git-send-email-fisaksen-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
2017-02-17 10:38 ` [PATCH v2 1/6] spi: davinci: Use SPI framework to handle DMA mapping Frode Isaksen
[not found] ` <1487327904-28311-2-git-send-email-fisaksen-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
2017-02-19 16:29 ` Mark Brown
2017-02-17 10:38 ` [PATCH v2 2/6] spi: davinci: enable DMA when channels are defined in DT Frode Isaksen
[not found] ` <1487327904-28311-3-git-send-email-fisaksen-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
2017-02-19 16:30 ` Mark Brown
2017-02-17 10:38 ` [PATCH v2 3/6] spi: davinci: use rx buffer as dummy tx buffer Frode Isaksen
[not found] ` <1487327904-28311-4-git-send-email-fisaksen-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
2017-03-15 19:37 ` Applied "spi: davinci: use rx buffer as dummy tx buffer" to the spi tree Mark Brown
2017-02-17 10:38 ` [PATCH v2 4/6] spi: davinci: flush caches when performing DMA Frode Isaksen
[not found] ` <1487327904-28311-5-git-send-email-fisaksen-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
2017-02-17 10:57 ` Vignesh R
[not found] ` <5fab0c33-6e1d-c63a-8758-6672236045a7-l0cyMroinI0@public.gmane.org>
2017-02-17 11:22 ` Russell King - ARM Linux
[not found] ` <20170217112247.GE21222-l+eeeJia6m9URfEZ8mYm6t73F7V6hmMc@public.gmane.org>
2017-02-17 11:36 ` Frode Isaksen
[not found] ` <eaf93c6c-52a7-826b-9c53-2b13c0b280ca-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
2017-02-17 12:07 ` Russell King - ARM Linux
2017-02-17 17:45 ` Frode Isaksen
[not found] ` <20170217120749.GF21222-l+eeeJia6m9URfEZ8mYm6t73F7V6hmMc@public.gmane.org>
2017-02-20 6:55 ` Vignesh R
[not found] ` <0f3607fd-4542-be92-da2e-b2da6f8ac26f-l0cyMroinI0@public.gmane.org>
2017-02-20 9:26 ` Frode Isaksen
[not found] ` <f0fcc000-6c07-647a-ada2-04b61f0e2e3b-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
2017-02-20 9:47 ` Vignesh R
[not found] ` <57721a60-52bb-c9d1-d5a7-ae450e7adcc0-l0cyMroinI0@public.gmane.org>
2017-02-20 10:34 ` Frode Isaksen
[not found] ` <2a1954a3-edbd-7ac4-6fde-9b6d046a6560-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
2017-02-20 11:27 ` Vignesh R
[not found] ` <954333da-4d15-ce77-4021-268530365edc-l0cyMroinI0@public.gmane.org>
2017-02-20 15:49 ` Frode Isaksen
[not found] ` <69d41f8a-371b-abd9-7e78-f8701652877f-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
2017-02-21 5:08 ` Vignesh R
2017-02-17 10:38 ` [PATCH v2 5/6] spi: davinci: do not use DMA if transfer length is less than 16 Frode Isaksen
[not found] ` <1487327904-28311-6-git-send-email-fisaksen-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
2017-02-17 16:37 ` Arnd Bergmann
[not found] ` <CAK8P3a24HkxrU-6a727RY5JqwQgyf9SpprPXvurSqf1Q_W_AMQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-02-17 16:43 ` Frode Isaksen
[not found] ` <3358b5f1-c7b6-0955-0c36-6f135a585762-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
2017-02-17 16:55 ` Arnd Bergmann
2017-02-17 10:38 ` [PATCH v2 6/6] spi: loopback-test: add option to use vmalloc'ed buffers Frode Isaksen
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