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mtd: nand: sh_flctl: rely on generic DT parsing done in nand_scan_ident()

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The core now takes care of parsing generic DT properties in
nand_scan_ident() when nand_set_flash_node() has been called.
Rely on this initialization instead of calling of_get_nand_xxx()
manually.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
This commit is contained in:
Boris Brezillon 2016-04-01 14:54:31 +02:00
parent 609468f948
commit 14667d8d58
1 changed files with 12 additions and 15 deletions
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27
drivers/mtd/nand/sh_flctl.c
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@ -31,7 +31,6 @@
#include <linux/io.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/of_mtd.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/sh_dma.h>
@ -1092,8 +1091,6 @@ static struct sh_flctl_platform_data *flctl_parse_dt(struct device *dev)
const struct of_device_id *match;
struct flctl_soc_config *config;
struct sh_flctl_platform_data *pdata;
struct device_node *dn = dev->of_node;
int ret;
match = of_match_device(of_flctl_match, dev);
if (match)
@ -1113,15 +1110,6 @@ static struct sh_flctl_platform_data *flctl_parse_dt(struct device *dev)
pdata->has_hwecc = config->has_hwecc;
pdata->use_holden = config->use_holden;
/* parse user defined options */
ret = of_get_nand_bus_width(dn);
if (ret == 16)
pdata->flcmncr_val |= SEL_16BIT;
else if (ret != 8) {
dev_err(dev, "%s: invalid bus width\n", __func__);
return NULL;
}
return pdata;
}
@ -1184,15 +1172,14 @@ static int flctl_probe(struct platform_device *pdev)
nand->chip_delay = 20;
nand->read_byte = flctl_read_byte;
nand->read_word = flctl_read_word;
nand->write_buf = flctl_write_buf;
nand->read_buf = flctl_read_buf;
nand->select_chip = flctl_select_chip;
nand->cmdfunc = flctl_cmdfunc;
if (pdata->flcmncr_val & SEL_16BIT) {
if (pdata->flcmncr_val & SEL_16BIT)
nand->options |= NAND_BUSWIDTH_16;
nand->read_word = flctl_read_word;
}
pm_runtime_enable(&pdev->dev);
pm_runtime_resume(&pdev->dev);
@ -1203,6 +1190,16 @@ static int flctl_probe(struct platform_device *pdev)
if (ret)
goto err_chip;
if (nand->options & NAND_BUSWIDTH_16) {
/*
* NAND_BUSWIDTH_16 may have been set by nand_scan_ident().
* Add the SEL_16BIT flag in pdata->flcmncr_val and re-assign
* flctl->flcmncr_base to pdata->flcmncr_val.
*/
pdata->flcmncr_val |= SEL_16BIT;
flctl->flcmncr_base = pdata->flcmncr_val;
}
ret = flctl_chip_init_tail(flctl_mtd);
if (ret)
goto err_chip;