On Sat, Mar 12, 2016 at 07:22:50PM +0900, Sangwon Jee wrote:
> Add hw_version sysfs attribute for retrieving hardware information
> from firmware.
>
> Signed-off-by: Sangwon Jee <jeesw@xxxxxxxxxx>
Applied, thank you.
> ---
> drivers/input/touchscreen/melfas_mip4.c | 28 +++++++++++++++++++++++++++-
> 1 file changed, 27 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/input/touchscreen/melfas_mip4.c b/drivers/input/touchscreen/melfas_mip4.c
> index 89272973..fb5fb91 100644
> --- a/drivers/input/touchscreen/melfas_mip4.c
> +++ b/drivers/input/touchscreen/melfas_mip4.c
> @@ -1310,8 +1310,34 @@ static ssize_t mip4_sysfs_read_fw_version(struct device *dev,
>
> static DEVICE_ATTR(fw_version, S_IRUGO, mip4_sysfs_read_fw_version, NULL);
>
> +static ssize_t mip4_sysfs_read_hw_version(struct device *dev,
> + struct device_attribute *attr,
> + char *buf)
> +{
> + struct i2c_client *client = to_i2c_client(dev);
> + struct mip4_ts *ts = i2c_get_clientdata(client);
> + size_t count;
> +
> + /* Take lock to prevent racing with firmware update */
> + mutex_lock(&ts->input->mutex);
> +
> + /*
> + * product_name shows the name or version of the hardware
> + * paired with current firmware in the chip.
> + */
> + count = snprintf(buf, PAGE_SIZE, "%.*s\n",
> + (int)sizeof(ts->product_name), ts->product_name);
> +
> + mutex_unlock(&ts->input->mutex);
> +
> + return count;
> +}
> +
> +static DEVICE_ATTR(hw_version, S_IRUGO, mip4_sysfs_read_hw_version, NULL);
> +
> static struct attribute *mip4_attrs[] = {
> &dev_attr_fw_version.attr,
> + &dev_attr_hw_version.attr,
> &dev_attr_update_fw.attr,
> NULL,
> };
> @@ -1512,6 +1538,6 @@ static struct i2c_driver mip4_driver = {
> module_i2c_driver(mip4_driver);
>
> MODULE_DESCRIPTION("MELFAS MIP4 Touchscreen");
> -MODULE_VERSION("2016.03.03");
> +MODULE_VERSION("2016.03.12");
> MODULE_AUTHOR("Sangwon Jee <jeesw@xxxxxxxxxx>");
> MODULE_LICENSE("GPL");
> --
> 1.9.1
>
--
Dmitry
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