target/linux/mvebu/patches-3.10/0141-mtd-nand-pxa3xx-Use-waitfunc-to-wait-for-the-device-.patch

   1 From 2a1254f505ca4d376eae81768e4d5d890b578d13 Mon Sep 17 00:00:00 2001
   2 From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
   3 Date: Thu, 14 Nov 2013 18:25:27 -0300
   4 Subject: [PATCH 141/203] mtd: nand: pxa3xx: Use waitfunc() to wait for the
   5  device to be ready
   6
   7 In pxa3xx_nand_sensing() instead of simply using info->is_ready
   8 after issuing a command, the correct way of checking is to wait
   9 for the device to be ready through the chip's waitfunc().
  10
  11 Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
  12 Tested-by: Daniel Mack <zonque@gmail.com>
  13 Signed-off-by: Brian Norris <computersforpeace@gmail.com>
  14 ---
  15  drivers/mtd/nand/pxa3xx_nand.c | 7 ++++---
  16  1 file changed, 4 insertions(+), 3 deletions(-)
  17
  18 --- a/drivers/mtd/nand/pxa3xx_nand.c
  19 +++ b/drivers/mtd/nand/pxa3xx_nand.c
  20 @@ -1040,10 +1040,11 @@ static int pxa3xx_nand_sensing(struct px
  21                 return ret;
  22
  23         chip->cmdfunc(mtd, NAND_CMD_RESET, 0, 0);
  24 -       if (!info->need_wait)
  25 -               return 0;
  26 +       ret = chip->waitfunc(mtd, chip);
  27 +       if (ret & NAND_STATUS_FAIL)
  28 +               return -ENODEV;
  29
  30 -       return -ENODEV;
  31 +       return 0;
  32  }
  33
  34  static int pxa3xx_nand_scan(struct mtd_info *mtd)