From: Geert Uytterhoeven <geert+renesas@glider.be>
To: Arnd Bergmann <arnd@arndb.de>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Cc: linux-kernel@vger.kernel.org, linux-spi@vger.kernel.org,
linux-mtd@vger.kernel.org,
Geert Uytterhoeven <geert+renesas@glider.be>
Subject: [PATCH 0/3] eeprom: at25: SPI transfer improvements
Date: Wed, 10 Oct 2018 15:40:33 +0200 [thread overview]
Message-ID: <20181010134036.8296-1-geert+renesas@glider.be> (raw)
Hi all,
This patch series contains various improvements for the AT25 SPI EEPROM
driver, related to SPI transfers.
Tested on a Renesas Ebisu development board with R-Car E3 using MSIOF
and a 25LC040 EEPROM. The MSIOF SPI Controller can only do DMA for
transfers with a length that is a multiple of 4 bytes.
Thanks!
Geert Uytterhoeven (3):
eeprom: at25: Drop obsolete cast in at25_ee_write()
eeprom: at25: Use spi_message_init_with_transfers() instead of open
coding
eeprom: at25: Split writes in two SPI transfers to optimize DMA
drivers/misc/eeprom/at25.c | 24 ++++++++++++++++--------
1 file changed, 16 insertions(+), 8 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
next reply other threads:[~2018-10-10 13:40 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-10 13:40 Geert Uytterhoeven [this message]
2018-10-10 13:40 ` [PATCH 1/3] eeprom: at25: Drop obsolete cast in at25_ee_write() Geert Uytterhoeven
2018-10-10 13:40 ` [PATCH 2/3] eeprom: at25: Use spi_message_init_with_transfers() instead of open coding Geert Uytterhoeven
2018-10-10 13:40 ` [PATCH 3/3] eeprom: at25: Split writes in two SPI transfers to optimize DMA Geert Uytterhoeven
2018-10-10 21:47 ` Trent Piepho
2018-10-11 6:59 ` Geert Uytterhoeven
2018-10-10 13:43 ` [PATCH 0/3] eeprom: at25: SPI transfer improvements Geert Uytterhoeven
2018-10-10 13:43 ` [PATCH 1/3] eeprom: at25: Drop obsolete cast in at25_ee_write() Geert Uytterhoeven
2018-10-10 14:01 ` Arnd Bergmann
2018-10-10 14:42 ` Geert Uytterhoeven
2018-10-10 13:43 ` [PATCH 2/3] eeprom: at25: Use spi_message_init_with_transfers() instead of open coding Geert Uytterhoeven
2018-10-10 14:02 ` Arnd Bergmann
2018-10-10 13:43 ` [PATCH 3/3] eeprom: at25: Split writes in two SPI transfers to optimize DMA Geert Uytterhoeven
2018-10-10 14:03 ` Arnd Bergmann
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