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4 Commits

Author SHA1 Message Date
Nobuhiro Iwamatsu
cd818a381d i2c: rcar_i2c: Fix order of restart and clear status 
In case of repeated START condition, the restart has to be kicked
before clear status (MSR register). If it is kicked after clear status,
R-Car I2C may transfer data (TXD register) or receive data (RXD register)
instead of transferring slave address (MAR register).

Signed-off-by: Ryo Kataoka <ryo.kataoka.wt@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
 2014-11-10 06:47:37 +01:00
Nobuhiro Iwamatsu
da1ed0d20e rcar_i2c: Clear status before start master receive 
Signed-off-by: Hisashi Nakamura <hisashi.nakamura.ak@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
 2014-01-13 08:16:48 +01:00
Hisashi Nakamura
ad5e14ecdd rcar_i2c: Fix receiving wait condition 
Signed-off-by: Hisashi Nakamura <hisashi.nakamura.ak@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
 2014-01-13 08:16:22 +01:00
Nobuhiro Iwamatsu
1086bfa9f4 i2c: Add support for Renesas rcar 
This supports i2c controller for Renesas rcar.

Signed-off-by: Hisashi Nakamura <hisashi.nakamura.ak@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
 2013-10-17 07:20:25 +02:00