On Fri, Aug 27, 2010 at 06:30:28PM +0200, Guennadi Liakhovetski wrote: > On Fri, 27 Aug 2010, Michael Grzeschik wrote: > > > On Fri, Aug 27, 2010 at 05:11:18PM +0200, Guennadi Liakhovetski wrote: > > > On Tue, 3 Aug 2010, Michael Grzeschik wrote: > > > > > > > Signed-off-by: Philipp Wiesner <p.wies...@phytec.de> > > > > Signed-off-by: Michael Grzeschik <m.grzesc...@pengutronix.de> > > > > > > I don't see these being used in any of your patches... > > Yes, these are not used. They are a left over from the previous patchstack. > > But they are checked against the datasheet and are correct. > > Is it a problem to take them anyway? > > It is not a problem, it is unneeded. You do not want to add all registers > and all their fields to every driver, do you? There are some drivers in > the kernel, that define more registers, than are used. Of course, say, if > you use bits 0, 1, 2, and 4 of a register, you might as well define bit 3 > - especially, if they are logically related. But this patch adds a whole > family of parameters, none of which is used, so, I personally would avoid > that.
Ok, no big deal. Personally i don't have a problem with additional inexpensive registers and fields. As they often can be a good hint to some functionality of a chip before you begin to scroll through the, sometimes not so easy to find, datasheets. But that is probably a pure matter of taste. Regards, Michael > > > > > > --- > > > > drivers/media/video/mt9m111.c | 6 ++++++ > > > > 1 files changed, 6 insertions(+), 0 deletions(-) > > > > > > > > diff --git a/drivers/media/video/mt9m111.c > > > > b/drivers/media/video/mt9m111.c > > > > index 8c076e5..1b21522 100644 > > > > --- a/drivers/media/video/mt9m111.c > > > > +++ b/drivers/media/video/mt9m111.c > > > > @@ -63,6 +63,12 @@ > > > > #define MT9M111_RESET_RESTART_FRAME (1 << 1) > > > > #define MT9M111_RESET_RESET_MODE (1 << 0) > > > > > > > > +#define MT9M111_RM_FULL_POWER_RD (0 << 10) > > > > +#define MT9M111_RM_LOW_POWER_RD (1 << 10) > > > > +#define MT9M111_RM_COL_SKIP_4X (1 << 5) > > > > +#define MT9M111_RM_ROW_SKIP_4X (1 << 4) > > > > +#define MT9M111_RM_COL_SKIP_2X (1 << 3) > > > > +#define MT9M111_RM_ROW_SKIP_2X (1 << 2) > > > > #define MT9M111_RMB_MIRROR_COLS (1 << 1) > > > > #define MT9M111_RMB_MIRROR_ROWS (1 << 0) > > > > #define MT9M111_CTXT_CTRL_RESTART (1 << 15) > > > > -- > > > > 1.7.1 > > > > > > > > > > > > -- > > Pengutronix e.K. | | > > Industrial Linux Solutions | http://www.pengutronix.de/ | > > Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | > > Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | > > -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
