diff options
Diffstat (limited to 'drivers/mtd/nand/lpc32xx_slc.c')
| -rw-r--r-- | drivers/mtd/nand/lpc32xx_slc.c | 52 |
1 files changed, 21 insertions, 31 deletions
diff --git a/drivers/mtd/nand/lpc32xx_slc.c b/drivers/mtd/nand/lpc32xx_slc.c index 9326e5994b2..32409c45d47 100644 --- a/drivers/mtd/nand/lpc32xx_slc.c +++ b/drivers/mtd/nand/lpc32xx_slc.c @@ -719,45 +719,38 @@ static int lpc32xx_nand_dma_setup(struct lpc32xx_nand_host *host) return 0; } -#ifdef CONFIG_OF static struct lpc32xx_nand_cfg_slc *lpc32xx_parse_dt(struct device *dev) { - struct lpc32xx_nand_cfg_slc *pdata; + struct lpc32xx_nand_cfg_slc *ncfg; struct device_node *np = dev->of_node; - pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); - if (!pdata) { - dev_err(dev, "could not allocate memory for platform data\n"); + ncfg = devm_kzalloc(dev, sizeof(*ncfg), GFP_KERNEL); + if (!ncfg) { + dev_err(dev, "could not allocate memory for NAND config\n"); return NULL; } - of_property_read_u32(np, "nxp,wdr-clks", &pdata->wdr_clks); - of_property_read_u32(np, "nxp,wwidth", &pdata->wwidth); - of_property_read_u32(np, "nxp,whold", &pdata->whold); - of_property_read_u32(np, "nxp,wsetup", &pdata->wsetup); - of_property_read_u32(np, "nxp,rdr-clks", &pdata->rdr_clks); - of_property_read_u32(np, "nxp,rwidth", &pdata->rwidth); - of_property_read_u32(np, "nxp,rhold", &pdata->rhold); - of_property_read_u32(np, "nxp,rsetup", &pdata->rsetup); - - if (!pdata->wdr_clks || !pdata->wwidth || !pdata->whold || - !pdata->wsetup || !pdata->rdr_clks || !pdata->rwidth || - !pdata->rhold || !pdata->rsetup) { + of_property_read_u32(np, "nxp,wdr-clks", &ncfg->wdr_clks); + of_property_read_u32(np, "nxp,wwidth", &ncfg->wwidth); + of_property_read_u32(np, "nxp,whold", &ncfg->whold); + of_property_read_u32(np, "nxp,wsetup", &ncfg->wsetup); + of_property_read_u32(np, "nxp,rdr-clks", &ncfg->rdr_clks); + of_property_read_u32(np, "nxp,rwidth", &ncfg->rwidth); + of_property_read_u32(np, "nxp,rhold", &ncfg->rhold); + of_property_read_u32(np, "nxp,rsetup", &ncfg->rsetup); + + if (!ncfg->wdr_clks || !ncfg->wwidth || !ncfg->whold || + !ncfg->wsetup || !ncfg->rdr_clks || !ncfg->rwidth || + !ncfg->rhold || !ncfg->rsetup) { dev_err(dev, "chip parameters not specified correctly\n"); return NULL; } - pdata->use_bbt = of_get_nand_on_flash_bbt(np); - pdata->wp_gpio = of_get_named_gpio(np, "gpios", 0); + ncfg->use_bbt = of_get_nand_on_flash_bbt(np); + ncfg->wp_gpio = of_get_named_gpio(np, "gpios", 0); - return pdata; -} -#else -static struct lpc32xx_nand_cfg_slc *lpc32xx_parse_dt(struct device *dev) -{ - return NULL; + return ncfg; } -#endif /* * Probe for NAND controller @@ -793,10 +786,9 @@ static int __devinit lpc32xx_nand_probe(struct platform_device *pdev) if (pdev->dev.of_node) host->ncfg = lpc32xx_parse_dt(&pdev->dev); - else - host->ncfg = pdev->dev.platform_data; if (!host->ncfg) { - dev_err(&pdev->dev, "Missing platform data\n"); + dev_err(&pdev->dev, + "Missing or bad NAND config from device tree\n"); return -ENOENT; } if (host->ncfg->wp_gpio == -EPROBE_DEFER) @@ -1021,13 +1013,11 @@ static int lpc32xx_nand_suspend(struct platform_device *pdev, pm_message_t pm) #define lpc32xx_nand_suspend NULL #endif -#if defined(CONFIG_OF) static const struct of_device_id lpc32xx_nand_match[] = { { .compatible = "nxp,lpc3220-slc" }, { /* sentinel */ }, }; MODULE_DEVICE_TABLE(of, lpc32xx_nand_match); -#endif static struct platform_driver lpc32xx_nand_driver = { .probe = lpc32xx_nand_probe, |