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Code Issues Releases Activity

Remove the unnecessary i2c slave address assignment.

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The ti_i2c controller only works in the master mode and the i2c address
passed on iicbus_reset() is used to set the controller slave address when
operating as an i2c slave (which isn't currently supported).

When talking to a slave, the slave address is correctly provided to
ti_i2c_tranfer().
This commit is contained in:
Luiz Otavio O Souza 2014-06-03 14:46:50 +00:00
parent bfc00339de
commit a673123f8c
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=267009
1 changed files with 1 additions and 9 deletions
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10
sys/arm/ti/ti_i2c.c
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@ -92,7 +92,6 @@ struct ti_i2c_softc
volatile uint16_t sc_stat_flags; /* contains the status flags last IRQ */
uint16_t sc_i2c_addr;
uint16_t sc_rev;
};
@ -310,10 +309,6 @@ ti_i2c_reset(device_t dev, u_char speed, u_char addr, u_char *oldaddr)
TI_I2C_LOCK(sc);
if (oldaddr)
*oldaddr = sc->sc_i2c_addr;
sc->sc_i2c_addr = addr;
/* First disable the controller while changing the clocks */
con_reg = ti_i2c_read_reg(sc, I2C_REG_CON);
ti_i2c_write_reg(sc, I2C_REG_CON, 0x0000);
@ -325,9 +320,6 @@ ti_i2c_reset(device_t dev, u_char speed, u_char addr, u_char *oldaddr)
ti_i2c_write_reg(sc, I2C_REG_SCLL, clkcfg->scll | (clkcfg->hsscll<<8));
ti_i2c_write_reg(sc, I2C_REG_SCLH, clkcfg->sclh | (clkcfg->hssclh<<8));
/* Set the remote slave address */
ti_i2c_write_reg(sc, I2C_REG_SA, addr);
/* Check if we are dealing with high speed mode */
if ((clkcfg->hsscll + clkcfg->hssclh) > 0)
con_reg = I2C_CON_OPMODE_HS;
@ -339,7 +331,7 @@ ti_i2c_reset(device_t dev, u_char speed, u_char addr, u_char *oldaddr)
TI_I2C_UNLOCK(sc);
return 0;
return (IIC_ENOADDR);
}
/**