Commit d96eeee5 authored Jun 23, 2018 by Daniel Scheller Committed by Mauro Carvalho Chehab Jul 30, 2018

media: ddbridge: report I2C bus errors



The I2C_COMMAND response reports an error in the I2C bus communication
using bit 17. Evaluate the response more thoroughly and log an error
if an I2C problem was detected.

Picked up from the upstream dddvb GIT.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

parent ce2280fb

drivers/media/pci/ddbridge/ddbridge-i2c.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -73,7 +73,10 @@ static int ddb_i2c_cmd(struct ddb_i2c *i2c, u32 adr, u32 cmd)
		}
		return -EIO;
		}
		if (val & 0x70000)
		val &= 0x70000;
		if (val == 0x20000)
		dev_err(dev->dev, "I2C bus error\n");
		if (val)
		return -EIO;
		return 0;
		}

Admin message