On Fri, Feb 21, 2014 at 12:38:10AM +0000, Bjorn Andersson wrote:
> This bus driver supports the QUP i2c hardware controller in the Qualcomm SOCs.
> The Qualcomm Universal Peripheral Engine (QUP) is a general purpose data path
> engine with input/output FIFOs and an embedded i2c mini-core. The driver
> supports FIFO mode (for low bandwidth applications) and block mode (interrupt
> generated for each block-size data transfer).
>
> Cc: Andy Gross <agross@xxxxxxxxxxxxxx>
> Cc: Stephen Boyd <sboyd@xxxxxxxxxxxxxx>
> Signed-off-by: Ivan T. Ivanov <iivanov@xxxxxxxxxx>
> Signed-off-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxxxxxx>
> ---
> drivers/i2c/busses/Kconfig | 10 +
> drivers/i2c/busses/Makefile | 1 +
> drivers/i2c/busses/i2c-qup.c | 772 ++++++++++++++++++++++++++++++++++++++++++
> 3 files changed, 783 insertions(+)
> create mode 100644 drivers/i2c/busses/i2c-qup.c
>
> diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
> index f5ed031..403e196 100644
> --- a/drivers/i2c/busses/Kconfig
> +++ b/drivers/i2c/busses/Kconfig
> @@ -648,6 +648,16 @@ config I2C_PXA_SLAVE
> is necessary for systems where the PXA may be a target on the
> I2C bus.
[...]
> +static const struct of_device_id qup_i2c_dt_match[] = {
> + { .compatible = "qcom,i2c-qup-v1.1.1" },
> + { .compatible = "qcom,i2c-qup-v2.1.1" },
> + { .compatible = "qcom,i2c-qup-v2.2.1" },
The all seem to be handled the same.
Are they all compatible with the "qcom,i2c-qup-v1.1.1" programming
model, such that it could be used as a fallback in the compatible list
(and the driver would only need to look for it for now)?
Cheers,
Mark.
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