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authorAdrian Hunter <ext-adrian.hunter@nokia.com>2008-11-12 16:06:40 +0200
committerDavid Woodhouse <David.Woodhouse@intel.com>2008-12-10 13:35:19 +0000
commit9359ea461b382de3249469d2165da45f4762b910 (patch)
treee4f2e691e7b154c5461f5d5cc99f232f48516370
parent4f8f3af20ac5a1e58b419a98dfe76522885b5355 (diff)
MTD: nandsim: suppress unnecessary warning
nand_base sometimes reads only 2 bytes of a 4 byte id. It is OK. Do not print a warning in that case. Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
-rw-r--r--drivers/mtd/nand/nandsim.c18
1 files changed, 11 insertions, 7 deletions
diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c
index ae7c57781a6..fdf82cf2444 100644
--- a/drivers/mtd/nand/nandsim.c
+++ b/drivers/mtd/nand/nandsim.c
@@ -1736,13 +1736,17 @@ static void ns_nand_write_byte(struct mtd_info *mtd, u_char byte)
/* Check if chip is expecting command */
if (NS_STATE(ns->nxstate) != STATE_UNKNOWN && !(ns->nxstate & STATE_CMD_MASK)) {
- /*
- * We are in situation when something else (not command)
- * was expected but command was input. In this case ignore
- * previous command(s)/state(s) and accept the last one.
- */
- NS_WARN("write_byte: command (%#x) wasn't expected, expected state is %s, "
- "ignore previous states\n", (uint)byte, get_state_name(ns->nxstate));
+ /* Do not warn if only 2 id bytes are read */
+ if (!(ns->regs.command == NAND_CMD_READID &&
+ NS_STATE(ns->state) == STATE_DATAOUT_ID && ns->regs.count == 2)) {
+ /*
+ * We are in situation when something else (not command)
+ * was expected but command was input. In this case ignore
+ * previous command(s)/state(s) and accept the last one.
+ */
+ NS_WARN("write_byte: command (%#x) wasn't expected, expected state is %s, "
+ "ignore previous states\n", (uint)byte, get_state_name(ns->nxstate));
+ }
switch_to_ready_state(ns, NS_STATUS_FAILED(ns));
}