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authorJarkko Nikula <jarkko.nikula@linux.intel.com>2017-08-09 15:24:44 +0300
committerWolfram Sang <wsa@the-dreams.de>2017-08-14 21:13:29 +0200
commit4e2d93de070ceaca5097f7ee5c311731b83208a0 (patch)
tree62078d5e364e08b825ae829a8dca5c1dafa9a49f /drivers/i2c
parent984277a041d5ee4a65aaadf0307d67a7c401e11c (diff)
downloadlinux-4e2d93de070ceaca5097f7ee5c311731b83208a0.tar.bz2
i2c: designware: Fix standard mode speed when configuring the slave mode
Code sets bit DW_IC_CON_SPEED_FAST (0x4) always when configuring the slave mode. This results incorrect register value DW_IC_CON_SPEED_HIGH (0x6) when OR'ed together with DW_IC_CON_SPEED_STD (0x2). Remove this and let the code set the speed mode bits according to clock frequency or default to fast mode. Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'drivers/i2c')
-rw-r--r--drivers/i2c/busses/i2c-designware-platdrv.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c
index 441afc715a90..57248bccadbc 100644
--- a/drivers/i2c/busses/i2c-designware-platdrv.c
+++ b/drivers/i2c/busses/i2c-designware-platdrv.c
@@ -198,8 +198,7 @@ static void i2c_dw_configure_slave(struct dw_i2c_dev *dev)
dev->functionality = I2C_FUNC_SLAVE | DW_IC_DEFAULT_FUNCTIONALITY;
dev->slave_cfg = DW_IC_CON_RX_FIFO_FULL_HLD_CTRL |
- DW_IC_CON_RESTART_EN | DW_IC_CON_STOP_DET_IFADDRESSED |
- DW_IC_CON_SPEED_FAST;
+ DW_IC_CON_RESTART_EN | DW_IC_CON_STOP_DET_IFADDRESSED;
dev->mode = DW_IC_SLAVE;