> -----Original Message----- > From: Mark Brown [mailto:broo...@opensource.wolfsonmicro.com] > Sent: Wednesday, November 28, 2012 2:59 PM > To: Navada Kanyana, Mukund > Cc: Greg Kroah-Hartman; linux-kernel@vger.kernel.org > Subject: Re: [PATCH 1/1] regmap: Add support for continously numbered > pages across regmap range > > On Wed, Nov 28, 2012 at 02:52:57PM +0530, Mukund Navada wrote: > > Page number in some devices increases across regmap ranges since the > > selector register to choose the page remains the same. So in order to > > write correct page number, the start_page_num is stored in > > regmap_range_cfg. > > I'm sorry but I can't understand what this is supposed to do. The > current paging code expects pages to be numbered continuously with no > gaps. Can you please clarify? But the page number is expected to increase only till end of range. But in devices like TLV320AIC3256, the page number increases beyond range.
Example: Pages 0 through Page 1 --> first register range for device configuration. Page 8 through Page 16 --> second range for DSP1 coefficient memory Page 26 through Page 34 --> third range for DSP2 coefficient memory Window length of each page is 128. So if we need to correctly write the page number in selector register for second range, start_page_num would be 8. If we did not have start_page_num, it would write 0 to selector register. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
