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i2c: i2c-cdns: No need for dedicated probe function

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The generic probe code in dm works, so get rid of the leftover cruft.

Signed-off-by: Moritz Fischer <moritz.fischer@ettus.com>
Cc: Heiko Schocher <hs@denx.de>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: u-boot@lists.denx.de
This commit is contained in:
Moritz Fischer 2017-01-16 09:50:47 -08:00 committed by Heiko Schocher
parent 08c11aaefb
commit 19cdd5c5be
1 changed files with 0 additions and 21 deletions
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21
drivers/i2c/i2c-cdns.c
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@ -226,26 +226,6 @@ static int cdns_i2c_set_bus_speed(struct udevice *dev, unsigned int speed)
return 0; return 0;
} }
/* Probe to see if a chip is present. */
static int cdns_i2c_probe_chip(struct udevice *bus, uint chip_addr,
uint chip_flags)
{
struct i2c_cdns_bus *i2c_bus = dev_get_priv(bus);
struct cdns_i2c_regs *regs = i2c_bus->regs;
/* Attempt to read a byte */
setbits_le32(&regs->control, CDNS_I2C_CONTROL_CLR_FIFO |
CDNS_I2C_CONTROL_RW);
clrbits_le32(&regs->control, CDNS_I2C_CONTROL_HOLD);
writel(0xFF, &regs->interrupt_status);
writel(chip_addr, &regs->address);
writel(1, &regs->transfer_size);
return (cdns_i2c_wait(regs, CDNS_I2C_INTERRUPT_COMP |
CDNS_I2C_INTERRUPT_NACK) &
CDNS_I2C_INTERRUPT_COMP) ? 0 : -ETIMEDOUT;
}
static int cdns_i2c_write_data(struct i2c_cdns_bus *i2c_bus, u32 addr, u8 *data, static int cdns_i2c_write_data(struct i2c_cdns_bus *i2c_bus, u32 addr, u8 *data,
u32 len) u32 len)
{ {
@ -453,7 +433,6 @@ static int cdns_i2c_ofdata_to_platdata(struct udevice *dev)
static const struct dm_i2c_ops cdns_i2c_ops = { static const struct dm_i2c_ops cdns_i2c_ops = {
.xfer = cdns_i2c_xfer, .xfer = cdns_i2c_xfer,
.probe_chip = cdns_i2c_probe_chip,
.set_bus_speed = cdns_i2c_set_bus_speed, .set_bus_speed = cdns_i2c_set_bus_speed,
}; };