aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorBoris Brezillon <boris.brezillon@free-electrons.com>2016-04-01 14:54:31 +0200
committerBoris Brezillon <boris.brezillon@free-electrons.com>2016-05-05 23:51:59 +0200
commit14667d8d586f93cd1514dfcfe85aeda41dc47142 (patch)
tree5298156d9e0bdad24f7e730c5897d3f2b4e1e43b
parent609468f94883c7840b9b22ec0ee9674513363d9e (diff)
mtd: nand: sh_flctl: rely on generic DT parsing done in nand_scan_ident()
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>
-rw-r--r--drivers/mtd/nand/sh_flctl.c27
1 files changed, 12 insertions, 15 deletions
diff --git a/drivers/mtd/nand/sh_flctl.c b/drivers/mtd/nand/sh_flctl.c
index a5abf6f..6fa3bcd 100644
--- a/drivers/mtd/nand/sh_flctl.c
+++ b/drivers/mtd/nand/sh_flctl.c
@@ -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;