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Tetsuyuki Kobayashi 7a65768903 i2c: sh_i2c: bugfix: i2c probe command does not work 
This is regression of commit 2035d77d i2c: sh_i2c: Update to new CONFIG_SYS_I2C framework

Before commit 2035d77d, i2c probe command works properly on kzm9g board.

KZM-A9-GT# i2c probe
Valid chip addresses: 0C 12 1D 32 39 3D 40 60

After commit 2035d77d, i2c probe command does not work.

KZM-A9-GT# i2c probe
Valid chip addresses: 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F 20 21 22 23 24 25 26 27 28 29 2A 2B 2C 2D 2E 2F 30 31 32 33 34 35 36 37 38 39 3A 3B 3C 3D 3E 3F 40 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4E 4F 50 51 52 53 54 55 56 57 58 59 5A 5B 5C 5D 5E 5F 60 61 62 63 64 65 66 67 68 69 6A 6B 6C 6D 6E 6F 70 71 72 73 74 75 76 77 78 79 7A 7B 7C 7D 7E 7F

sh_i2c_probe() calls sh_i2c_read(), but read length is 0. So acutally it does not read device at all. This patch prepares dummy buffer and read data into it.

Signed-off-by: Tetsuyuki Kobayashi <koba@kmckk.co.jp>
Acked-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2014-04-14 17:41:48 +09:00
..
bfin-twi_i2c.c blackfin: add spi and i2c specific get clock functions 2014-02-20 06:46:56 +01:00
davinci_i2c.c Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -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 fsl_i2c: add workaround for the erratum I2C A004447 2013-08-20 11:15:31 +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: Add Kona I2C driver 2014-02-22 19:30:39 +01:00
Makefile i2c: kona: Add Kona I2C driver 2014-02-22 19:30:39 +01:00
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 Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
mxc_i2c.c i2c: mxc: move to new subsystem 2013-10-17 07:20:24 +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: Add the fifth bus on SoC with more than 4 buses 2013-12-18 10:19:49 -07:00
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: Add support for the second i2c controller 2014-02-20 06:46:55 +01:00