iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
fc91e40123
linux/drivers/i2c/busses
History
Marek Vasut fc91e40123 i2c: mxs: Add PIO and mixed-DMA support 
Add support for the PIO mode and mixed PIO/DMA mode support. The mixed
PIO/DMA is the default mode of operation. This shall leverage overhead
that the driver creates due to setting up DMA descriptors even for very
short transfers.

The current boundary between PIO/DMA 8 bytes, transfers shorter than 8
bytes are transfered by PIO, longer transfers use DMA. The performance
of write transfers remains unchanged, while there is a minor improvement
of read performance. Reading 16KB EEPROM with DMA-only operations gives
a read speed of 39.5KB/s, while with then new mixed-mode the speed is
blazing 40.6KB/s.

Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2013-01-28 05:26:45 +01:00
..
i2c-acorn.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
i2c-ali15x3.c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
i2c-ali1535.c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
i2c-ali1563.c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
i2c-amd756-s4882.c
i2c-amd756.c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
i2c-amd8111.c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
i2c-at91.c i2c: at91: add of_device_id entry for at91rm9200 2013-01-28 05:26:43 +01:00
i2c-au1550.c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
i2c-bfin-twi.c i2c: i2c-bfin-twi: Move blackfin TWI register access Macro to head file. 2012-07-13 08:37:31 +02:00
i2c-cbus-gpio.c i2c: i2c-cbus-gpio: introduce driver 2012-11-19 09:57:16 +01:00
i2c-cpm.c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
i2c-davinci.c Merge branch 'i2c-embedded/for-next' of git://git.pengutronix.de/git/wsa/linux 2012-10-11 10:27:51 +09:00
i2c-designware-core.c i2c-designware: always set the STOP bit after last byte 2013-01-28 05:26:42 +01:00
i2c-designware-core.h i2c: designware: Add support for 16bit register access 2012-05-12 14:28:11 +02:00
i2c-designware-pcidrv.c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
i2c-designware-platdrv.c i2c-designware: add support for Intel Lynxpoint 2013-01-28 05:26:42 +01:00
i2c-diolan-u2c.c i2c: diolan-u2c: Fix master_xfer return code 2012-08-18 12:27:27 +02:00
i2c-eg20t.c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
i2c-elektor.c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
i2c-gpio.c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
i2c-highlander.c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
i2c-hydra.c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
i2c-i801.c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
i2c-ibm_iic.c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
i2c-ibm_iic.h
i2c-imx.c i2c: imx: remove cpu_is_xxx by using platform_device_id 2012-10-15 10:03:15 +08:00
i2c-intel-mid.c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
i2c-iop3xx.c i2c: iop3xx: use standard gpiolib functions 2012-07-25 09:26:41 -05:00
i2c-iop3xx.h i2c-iop3xx: add iomem annotation 2011-01-04 00:53:37 +00:00
i2c-isch.c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
i2c-mpc.c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
i2c-mv64xxx.c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
i2c-mxs.c i2c: mxs: Add PIO and mixed-DMA support 2013-01-28 05:26:45 +01:00
i2c-nforce2-s4985.c
i2c-nforce2.c i2c: nforce2: fix coding style issues 2013-01-28 05:26:42 +01:00
i2c-nomadik.c i2c: nomadik: drop superfluous variable initialization 2013-01-28 05:26:44 +01:00
i2c-nuc900.c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
i2c-ocores.c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
i2c-octeon.c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
i2c-omap.c i2c: omap: fix draining irq handling 2013-01-22 16:17:05 +01:00
i2c-parport-light.c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
i2c-parport.c i2c-parport: i2c_parport_irq can be static 2012-10-05 22:23:53 +02:00
i2c-parport.h i2c-parport: Various cleanups 2011-05-24 20:58:49 +02:00
i2c-pasemi.c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
i2c-pca-isa.c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
i2c-pca-platform.c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
i2c-piix4.c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
i2c-pmcmsp.c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
i2c-pnx.c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
i2c-powermac.c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
i2c-puv3.c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
i2c-pxa-pci.c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
i2c-pxa.c i2c/i2c-pxa: remove conditional compilation of clk code 2012-07-30 17:25:12 -07:00
i2c-rcar.c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
i2c-s3c2410.c i2c: s3c2410: Remove err_cpufreq label 2013-01-28 05:26:45 +01:00
i2c-s6000.c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
i2c-s6000.h i2c: Change mail address of Oskar Schirmer 2012-05-17 15:15:56 +02:00
i2c-scmi.c i2c-scmi: convert to module_acpi_driver() 2012-09-21 13:39:56 -04:00
i2c-sh7760.c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
i2c-sh_mobile.c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
i2c-sibyte.c i2c/mips: Fix error return codes from Sibyte i2c bus driver 2010-07-10 09:42:47 +02:00
i2c-simtec.c i2c/busses: Use module_platform_driver() 2012-01-12 20:32:04 +01:00
i2c-sirf.c i2c: sirf: register i2c_client from dt child-nodes in probe entry 2013-01-22 09:54:31 +01:00
i2c-sis96x.c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
i2c-sis630.c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
i2c-sis5595.c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
i2c-stu300.c i2c: stu300: use devm managed resources 2012-07-16 13:48:51 +02:00
i2c-taos-evm.c i2c-taos-evm: Fix log messages 2011-06-29 11:36:10 +02:00
i2c-tegra.c i2c: tegra: add support for Tegra114 SoC 2013-01-28 05:26:43 +01:00
i2c-tiny-usb.c i2c-tiny-usb: Add support for the Robofuzz OSIF USB/I2C converter 2012-07-24 14:13:59 +02:00
i2c-versatile.c i2c: Dynamically assign adapter id if it wasn't explictly specified 2012-05-12 14:28:11 +02:00
i2c-via.c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
i2c-viapro.c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
i2c-viperboard.c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
i2c-xiic.c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
i2c-xlr.c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
Kconfig Merge branch 'i2c-embedded/for-next' of git://git.pengutronix.de/git/wsa/linux 2012-12-18 16:51:10 -08:00
Makefile Merge branch 'i2c-embedded/for-next' of git://git.pengutronix.de/git/wsa/linux 2012-12-18 16:51:10 -08:00
scx200_acb.c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
scx200_i2c.c i2c/scx200_*: Replace printks with pr_<level>s 2012-10-05 22:23:52 +02:00