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authorNikolaus Voss <n.voss@weinmann.de>2011-11-08 14:49:46 +0400
committerWolfram Sang <w.sang@pengutronix.de>2012-09-12 16:49:13 +0400
commitfac368a040484293006bb488e67972aafcf88ec7 (patch)
tree9c132f85cd1a0df4cb1dedcd48d90d2bbb15e6b8 /drivers/i2c/busses/Makefile
parenta879e9c34b93ee43f5caa7f94eb17e7af4f6ef50 (diff)
downloadlinux-fac368a040484293006bb488e67972aafcf88ec7.tar.xz
i2c: at91: add new driver
This driver has the following properties compared to the old driver: 1. Support for multiple interfaces. 2. Interrupt driven I/O as opposed to polling/busy waiting. 3. Support for _one_ repeated start (Sr) condition, which is enough for most real-world applications including all SMBus transfer types. (The hardware does not support issuing arbitrary Sr conditions on the bus.) testing: SoC: at91sam9g45 - BQ20Z80 battery SMBus client. - on a 2.6.38 kernel with several i2c clients (temp-sensor, audio-codec, touchscreen-controller, w1-bridge, io-expanders) Signed-off-by: Nikolaus Voss <n.voss@weinmann.de> Reviewed-by: Felipe Balbi <balbi@ti.com> Tested-by: Hubert Feurstein <h.feurstein@gmail.com> Tested-by: Ludovic Desroches <ludovic.desroches@atmel.com> Reviewed-by: Nicolas Ferre <nicolas.ferre@atmel.com> [wsa: squashed with the following patches from Ludovic to have some flaws fixed: i2c: at91: use managed resources i2c: at91: add warning about transmission issues for some devices i2c: at91: use an id table for SoC dependent parameters ] Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com> Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Diffstat (limited to 'drivers/i2c/busses/Makefile')
-rw-r--r--drivers/i2c/busses/Makefile1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/i2c/busses/Makefile b/drivers/i2c/busses/Makefile
index 4f46873282b8..ce3c2be7fb40 100644
--- a/drivers/i2c/busses/Makefile
+++ b/drivers/i2c/busses/Makefile
@@ -28,6 +28,7 @@ obj-$(CONFIG_I2C_HYDRA) += i2c-hydra.o
obj-$(CONFIG_I2C_POWERMAC) += i2c-powermac.o
# Embedded system I2C/SMBus host controller drivers
+obj-$(CONFIG_I2C_AT91) += i2c-at91.o
obj-$(CONFIG_I2C_AU1550) += i2c-au1550.o
obj-$(CONFIG_I2C_BLACKFIN_TWI) += i2c-bfin-twi.o
obj-$(CONFIG_I2C_CPM) += i2c-cpm.o