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68049a082b
u-boot-brain/drivers/i2c
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Stephen Warren 68049a082b i2c: tegra: use repeated start for reads 
I2C read transactions are typically implemented as follows:

START(write) address REPEATED_START(read) data... STOP

However, Tegra's I2C driver currently implements reads as follows:

START(write) address STOP START(read) data... STOP

This sequence confuses at least the AS3722 PMIC on the Jetson TK1 board,
leading to corrupted read data in some cases. Fix the driver to chain
the transactions together using repeated starts to solve this.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Yen Lin <yelin@nvidia.com>
2014-07-03 06:29:19 +02:00
..
bfin-twi_i2c.c blackfin: add spi and i2c specific get clock functions 2014-02-20 06:46:56 +01:00
davinci_i2c.c i2c, davinci: convert driver to new mutlibus/mutliadapter framework 2014-04-17 17:24:38 -04:00
davinci_i2c.h i2c, davinci: convert driver to new mutlibus/mutliadapter framework 2014-04-17 17:24:38 -04:00
designware_i2c.c designware_i2c: remove inclusion of <asm/arch/hardware.h> 2014-02-20 06:49:09 +01:00
designware_i2c.h Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
fsl_i2c.c drivers/i2c/fsl_i2c: modify i2c_read to handle multi-byte write 2014-04-29 07:10:58 +02:00
fti2c010.c i2c: fti2c010: fix compiler warning on paddr[] 2014-01-13 08:18:38 +01:00
fti2c010.h drivers/i2c: Update fti2c010.[ch], i2c_core.c to use SPDX identifiers 2013-07-25 08:51:42 -04:00
i2c_core.c i2c: Fix i2c speed command 2014-01-13 08:17:51 +01:00
kona_i2c.c i2c: kona: Resolve Kona I2C driver issue 2014-06-12 11:42:50 +02:00
Makefile i2c, davinci: convert driver to new mutlibus/mutliadapter framework 2014-04-17 17:24:38 -04:00
mv_i2c.c Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
mv_i2c.h Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
mvtwsi.c mvtwsi: Remove unnecessary twsi_baud_rate and twsi_slave_address globals 2014-05-14 12:59:12 +02:00
mxc_i2c.c driver/mxc_i2c: Move static data structure to global_data 2014-04-29 07:10:27 +02:00
mxs_i2c.c i2c: i2c-mxs: Wait for I2C to empty queue 2014-02-20 06:46:57 +01:00
omap24xx_i2c.c OMAP24xx I2C: Add support for set-speed 2014-02-20 06:48:23 +01:00
omap24xx_i2c.h Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
pca9564_i2c.c Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
ppc4xx_i2c.c Merge branch 'master' of git://git.denx.de/u-boot-i2c 2013-07-24 09:50:24 -04:00
rcar_i2c.c rcar_i2c: Clear status before start master receive 2014-01-13 08:16:48 +01:00
s3c24x0_i2c.c i2c: samsung: register i2c busses for Exynso5420 and Exynos5250 2013-12-06 07:46:23 +01:00
s3c24x0_i2c.h i2c: s3c24xx: add hsi2c controller support 2013-10-17 07:20:26 +02:00
sh_i2c.c i2c: sh_i2c: bugfix: i2c probe command does not work 2014-04-14 17:41:48 +09:00
sh_sh7734_i2c.c Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
soft_i2c.c ARM: IXP: Remove the IXP architecture support 2014-02-06 02:51:52 +01:00
tegra_i2c.c i2c: tegra: use repeated start for reads 2014-07-03 06:29:19 +02:00
tsi108_i2c.c Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
u8500_i2c.c Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
u8500_i2c.h Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
zynq_i2c.c i2c: zynq: Fixed compilation errors when using DEBUG 2014-05-08 07:03:37 +02:00