[media] saa7164: I2C improvements for upcoming HVR2255/2205 boards
SI2168/SI2157 issue single byte address reads. Add support for these. Signed-off-by: Steven Toth <stoth@kernellabs.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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@ -39,9 +39,10 @@ static int i2c_xfer(struct i2c_adapter *i2c_adap, struct i2c_msg *msgs, int num)
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dprintk(DBGLVL_I2C, "%s(num = %d) addr = 0x%02x len = 0x%x\n",
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__func__, num, msgs[i].addr, msgs[i].len);
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if (msgs[i].flags & I2C_M_RD) {
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/* Unsupported - Yet*/
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printk(KERN_ERR "%s() Unsupported - Yet\n", __func__);
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continue;
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retval = saa7164_api_i2c_read(bus,
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msgs[i].addr,
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0 /* reglen */,
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0 /* reg */, msgs[i].len, msgs[i].buf);
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} else if (i + 1 < num && (msgs[i + 1].flags & I2C_M_RD) &&
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msgs[i].addr == msgs[i + 1].addr) {
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/* write then read from same address */
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