Re: [PATCH] of_i2c: I2C child node 10-bit client addressing
From: Grant Likely <hidden>
Date: 2012-11-14 16:27:16
On Fri, 12 Oct 2012 09:12:48 +0530, Bharat Reddy [off-list ref] wrote:
quoted hunk
I2C clients which has 10 bit address, struct i2c_board_info, member "flags = I2C_CLIENT_TEN" is needed. Signed-off-by: Bharat Kumar Reddy Gooty <redacted> --- drivers/of/of_i2c.c | 4 ++++ 1 file changed, 4 insertions(+)diff --git a/drivers/of/of_i2c.c b/drivers/of/of_i2c.c index 1e173f3..9cda7e2 100644 --- a/drivers/of/of_i2c.c +++ b/drivers/of/of_i2c.c@@ -57,6 +57,10 @@ void of_i2c_register_devices(struct i2c_adapter *adap) continue; } + /* Support for i2c 10 bit client address */ + if ((info.addr > (1 << 7) - 1) && (info.addr <= (1 << 10) - 1)) + info.flags = I2C_CLIENT_TEN; +
Is it possible for a device to have an address that fits in the first 7 bits, but still requires 10 bit address transactions? g.