Hi Ben, The McSPI1 has got "num_cs" as 4. I would like to use McSPI1 to select my 3 chips based on the two GPIO pins.
Could you please give me some pointers on this. Thanks, Venkat Raju. On Tue, Aug 30, 2011 at 7:22 PM, Ben Gamari <[email protected]> wrote: > --- > arch/arm/mach-omap2/board-omap3beagle.c | 4 ++-- > arch/arm/mach-omap2/devices.c | 15 +++++++++++++++ > 2 files changed, 17 insertions(+), 2 deletions(-) > > diff --git a/arch/arm/mach-omap2/board-omap3beagle.c > b/arch/arm/mach-omap2/board-omap3beagle.c > index 67999da..481c1a9 100644 > --- a/arch/arm/mach-omap2/board-omap3beagle.c > +++ b/arch/arm/mach-omap2/board-omap3beagle.c > @@ -661,8 +661,8 @@ static struct spi_board_info > beagledaq_mcspi_board_info[] = { > }, > }; > > -static int mcspi3_cs_gpios[4]; > -static int mcspi4_cs_gpios[4]; > +int mcspi3_cs_gpios[4]; > +int mcspi4_cs_gpios[4]; > > static void __init beagledaq_init(void) > { > diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c > index 5b8ca68..6808251 100644 > --- a/arch/arm/mach-omap2/devices.c > +++ b/arch/arm/mach-omap2/devices.c > @@ -341,6 +341,9 @@ struct omap_device_pm_latency omap_mcspi_latency[] = { > }, > }; > > +extern int mcspi3_cs_gpios[4]; > +extern int mcspi4_cs_gpios[4]; > + > static int omap_mcspi_init(struct omap_hwmod *oh, void *unused) > { > struct omap_device *od; > @@ -369,6 +372,18 @@ static int omap_mcspi_init(struct omap_hwmod *oh, void > *unused) > return -EINVAL; > } > > + /* HACK: Not enough time to figure out how to export cs_gpios from > + * board file to driver correctly */ > + if (spi_num == 2) { > + // Setup McSPI3 cs_gpios > + pdata->num_cs = 4; > + pdata->cs_gpios = mcspi3_cs_gpios; > + } else if (spi_num == 3) { > + // Setup McSPI4 cs_gpios > + pdata->num_cs = 4; > + pdata->cs_gpios = mcspi4_cs_gpios; > + } > + > spi_num++; > od = omap_device_build(name, spi_num, oh, pdata, > sizeof(*pdata), omap_mcspi_latency, > -- > 1.7.4.1 > > ------------------------------------------------------------------------------ Special Offer -- Download ArcSight Logger for FREE! Finally, a world-class log management solution at an even better price-free! And you'll get a free "Love Thy Logs" t-shirt when you download Logger. Secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsisghtdev2dev _______________________________________________ spi-devel-general mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/spi-devel-general
