Hi Ramesh, A few little nitpicks: On 02/07/2017 04:02 PM, Ramesh Shanmugasundaram wrote: > This patch adds driver support for the MAX2175 chip. This is Maxim > Integrated's RF to Bits tuner front end chip designed for software-defined > radio solutions. This driver exposes the tuner as a sub-device instance > with standard and custom controls to configure the device. > > Signed-off-by: Ramesh Shanmugasundaram <ramesh.shanmugasundaram@xxxxxxxxxxxxxx> > --- > Documentation/media/v4l-drivers/index.rst | 1 + > Documentation/media/v4l-drivers/max2175.rst | 60 ++ > drivers/media/i2c/Kconfig | 4 + > drivers/media/i2c/Makefile | 2 + > drivers/media/i2c/max2175/Kconfig | 8 + > drivers/media/i2c/max2175/Makefile | 4 + > drivers/media/i2c/max2175/max2175.c | 1438 +++++++++++++++++++++++++++ > drivers/media/i2c/max2175/max2175.h | 108 ++ > 8 files changed, 1625 insertions(+) > create mode 100644 Documentation/media/v4l-drivers/max2175.rst > create mode 100644 drivers/media/i2c/max2175/Kconfig > create mode 100644 drivers/media/i2c/max2175/Makefile > create mode 100644 drivers/media/i2c/max2175/max2175.c > create mode 100644 drivers/media/i2c/max2175/max2175.h > <snip> > + > +static const struct v4l2_ctrl_config max2175_i2s_en = { > + .ops = &max2175_ctrl_ops, > + .id = V4L2_CID_MAX2175_I2S_ENABLE, > + .name = "I2S Enable", > + .type = V4L2_CTRL_TYPE_BOOLEAN, > + .min = 0, > + .max = 1, > + .step = 1, > + .def = 1, > +}; > + > +/* > + * HSLS value control LO freq adjacent location configuration. > + * Refer to Documentation/media/v4l-drivers/max2175 for more details. > + */ > +static const struct v4l2_ctrl_config max2175_hsls = { > + .ops = &max2175_ctrl_ops, > + .id = V4L2_CID_MAX2175_HSLS, > + .name = "HSLS above/below desired", The convention is that the descriptions of controls follow the English 'title' rules w.r.t. caps. See v4l2-ctrls.c. This would become: "HSLS Above/Below Desired". > + .type = V4L2_CTRL_TYPE_INTEGER, Shouldn't this be a boolean control? > + .min = 0, > + .max = 1, > + .step = 1, > + .def = 1, > +}; > + > +/* > + * Rx modes below are a set of preset configurations that decides the tuner's > + * sck and sample rate of transmission. They are separate for EU & NA regions. > + * Refer to Documentation/media/v4l-drivers/max2175 for more details. > + */ > +static const char * const max2175_ctrl_eu_rx_modes[] = { > + [MAX2175_EU_FM_1_2] = "EU FM 1.2", > + [MAX2175_DAB_1_2] = "DAB 1.2", > +}; > + > +static const char * const max2175_ctrl_na_rx_modes[] = { > + [MAX2175_NA_FM_1_0] = "NA FM 1.0", > + [MAX2175_NA_FM_2_0] = "NA FM 2.0", > +}; > + > +static const struct v4l2_ctrl_config max2175_eu_rx_mode = { > + .ops = &max2175_ctrl_ops, > + .id = V4L2_CID_MAX2175_RX_MODE, > + .name = "RX MODE", MODE -> Mode. > + .type = V4L2_CTRL_TYPE_MENU, > + .max = ARRAY_SIZE(max2175_ctrl_eu_rx_modes) - 1, > + .def = 0, > + .qmenu = max2175_ctrl_eu_rx_modes, > +}; > + > +static const struct v4l2_ctrl_config max2175_na_rx_mode = { > + .ops = &max2175_ctrl_ops, > + .id = V4L2_CID_MAX2175_RX_MODE, > + .name = "RX MODE", Ditto. > + .type = V4L2_CTRL_TYPE_MENU, > + .max = ARRAY_SIZE(max2175_ctrl_na_rx_modes) - 1, > + .def = 0, > + .qmenu = max2175_ctrl_na_rx_modes, > +}; > + Regards, Hans -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html