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mtd: nand: fsmc: update of OF support

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Add nand bank selection and timings to the device tree bindings.

Signed-off-by: Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com>
[Added some documentation]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
Mian Yousaf Kaukab
2013-04-29 14:07:48 +02:00
committed by David Woodhouse
parent 52778b2e9f
commit 64ddba4d8a
3 changed files with 43 additions and 1 deletions
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18
drivers/mtd/nand/fsmc_nand.c
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@@ -889,6 +889,24 @@ static int fsmc_nand_probe_config_dt(struct platform_device *pdev,
if (of_get_property(np, "nand-skip-bbtscan", NULL))
pdata->options = NAND_SKIP_BBTSCAN;
pdata->nand_timings = devm_kzalloc(&pdev->dev,
sizeof(*pdata->nand_timings), GFP_KERNEL);
if (!pdata->nand_timings) {
dev_err(&pdev->dev, "no memory for nand_timing\n");
return -ENOMEM;
}
of_property_read_u8_array(np, "timings", (u8 *)pdata->nand_timings,
sizeof(*pdata->nand_timings));
/* Set default NAND bank to 0 */
pdata->bank = 0;
if (!of_property_read_u32(np, "bank", &val)) {
if (val > 3) {
dev_err(&pdev->dev, "invalid bank %u\n", val);
return -EINVAL;
}
pdata->bank = val;
}
return 0;
}
#else