mtd: rawnand: timings: Make onfi_fill_interface_config() a void helper

Warn the user if the parameters are wrong but basically it would mean
there is a serious issue in the NAND core. So no need to ever check
its output, let's make this helper return void.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://lore.kernel.org/linux-mtd/20200529111322.7184-21-miquel.raynal@bootlin.com

diff --git a/drivers/mtd/nand/raw/internals.h b/drivers/mtd/nand/raw/internals.h
index 114c63a..63c5af4 100644 (file)
--- a/drivers/mtd/nand/raw/internals.h
+++ b/drivers/mtd/nand/raw/internals.h
@@ -84,10 +84,10 @@ int nand_bbm_get_next_page(struct nand_chip *chip, int page);
 int nand_markbad_bbm(struct nand_chip *chip, loff_t ofs);
 int nand_erase_nand(struct nand_chip *chip, struct erase_info *instr,
                    int allowbbt);
-int onfi_fill_interface_config(struct nand_chip *chip,
-                              struct nand_interface_config *iface,
-                              enum nand_interface_type type,
-                              unsigned int timing_mode);
+void onfi_fill_interface_config(struct nand_chip *chip,
+                               struct nand_interface_config *iface,
+                               enum nand_interface_type type,
+                               unsigned int timing_mode);
 unsigned int
 onfi_find_closest_sdr_mode(const struct nand_sdr_timings *spec_timings);
 int nand_get_features(struct nand_chip *chip, int addr, u8 *subfeature_param);

diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
index 4fa18fb..3bfd71d 100644 (file)
--- a/drivers/mtd/nand/raw/nand_base.c
+++ b/drivers/mtd/nand/raw/nand_base.c
@@ -1041,10 +1041,8 @@ static int nand_choose_interface_config(struct nand_chip *chip)
        }
 
        for (mode = fls(modes) - 1; mode >= 0; mode--) {
-               ret = onfi_fill_interface_config(chip, &chip->interface_config,
-                                                NAND_SDR_IFACE, mode);
-               if (ret)
-                       continue;
+               onfi_fill_interface_config(chip, &chip->interface_config,
+                                          NAND_SDR_IFACE, mode);
 
                /*
                 * Pass NAND_DATA_IFACE_CHECK_ONLY to only check if the

diff --git a/drivers/mtd/nand/raw/nand_timings.c b/drivers/mtd/nand/raw/nand_timings.c
index bf05b4b..1e22006 100644 (file)
--- a/drivers/mtd/nand/raw/nand_timings.c
+++ b/drivers/mtd/nand/raw/nand_timings.c
@@ -347,18 +347,18 @@ onfi_find_closest_sdr_mode(const struct nand_sdr_timings *spec_timings)
  * @type: The interface type
  * @timing_mode: The ONFI timing mode
  */
-int onfi_fill_interface_config(struct nand_chip *chip,
-                              struct nand_interface_config *iface,
-                              enum nand_interface_type type,
-                              unsigned int timing_mode)
+void onfi_fill_interface_config(struct nand_chip *chip,
+                               struct nand_interface_config *iface,
+                               enum nand_interface_type type,
+                               unsigned int timing_mode)
 {
        struct onfi_params *onfi = chip->parameters.onfi;
 
-       if (type != NAND_SDR_IFACE)
-               return -EINVAL;
+       if (WARN_ON(type != NAND_SDR_IFACE))
+               return;
 
-       if (timing_mode >= ARRAY_SIZE(onfi_sdr_timings))
-               return -EINVAL;
+       if (WARN_ON(timing_mode >= ARRAY_SIZE(onfi_sdr_timings)))
+               return;
 
        *iface = onfi_sdr_timings[timing_mode];
 
@@ -378,6 +378,4 @@ int onfi_fill_interface_config(struct nand_chip *chip,
                /* nanoseconds -> picoseconds */
                timings->tCCS_min = 1000UL * onfi->tCCS;
        }
-
-       return 0;
 }