On Thu, Oct 24, 2013 at 06:20:20PM +0530, Pekon Gupta wrote: > This patch: > - calls nand_scan_ident() using bus-width as passed by DT > - removes double calls to nand_scan_ident(), incase first call fails > then omap_nand_probe just returns error. > > Signed-off-by: Pekon Gupta <[email protected]> > --- > drivers/mtd/nand/omap2.c | 21 +++++++++------------ > 1 file changed, 9 insertions(+), 12 deletions(-) > > diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c > index 5596368..f464321 100644 > --- a/drivers/mtd/nand/omap2.c > +++ b/drivers/mtd/nand/omap2.c > @@ -1856,7 +1856,6 @@ static int omap_nand_probe(struct platform_device *pdev) > mtd->name = dev_name(&pdev->dev); > mtd->owner = THIS_MODULE; > nand_chip = &info->nand; > - nand_chip->options = pdata->devsize; > nand_chip->options |= NAND_SKIP_BBTSCAN; > #ifdef CONFIG_MTD_NAND_OMAP_BCH > info->of_node = pdata->of_node; > @@ -1904,6 +1903,15 @@ static int omap_nand_probe(struct platform_device > *pdev) > nand_chip->chip_delay = 50; > } > > + /* scan NAND device connected to chip controller */ > + nand_chip->options |= pdata->devsize & NAND_BUSWIDTH_16;
Hm.. this only works if the device is listed in nand_flash_ids[] array, so that ONFI detection is not used. To make ONFI detection work I think you need to do as Brian suggested and use NAND_BUSWIDTH_AUTO. (Odd: why is there no current user of that auto-width option?) Anyway, I really think we should fix this now and independently of the evolution of this ECC DT binding discussion. That way you can keep sending a smaller ECC DT binding patchset and make reviewers focus on what's really important in each case. I have a few fixes (based on your work) and I'll send them now, after I complete the tests. We can continue our discussion there. -- Ezequiel García, Free Electrons Embedded Linux, Kernel and Android Engineering http://free-electrons.com -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
