kernel: update spi-nor in 4.9 to spi-nor tree version (next branch)

These are patches queued for 4.11. It adds support for even more hw and
removes some annoying WARN_ONCE.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>

1 files changed, 28 insertions, 0 deletions

diff --git a/target/linux/generic/patches-4.9/062-v4.11-0002-mtd-spi-nor-improve-macronix_quad_enable.patch b/target/linux/generic/patches-4.9/062-v4.11-0002-mtd-spi-nor-improve-macronix_quad_enable.patch
new file mode 100644
index 0000000..bdd5e34
--- /dev/null
+++ b/target/linux/generic/patches-4.9/062-v4.11-0002-mtd-spi-nor-improve-macronix_quad_enable.patch
@@ -0,0 +1,28 @@
+From 1e99d0d51ec97bf48edd277658004ce030543d98 Mon Sep 17 00:00:00 2001
+From: Cyrille Pitchen <cyrille.pitchen@atmel.com>
+Date: Tue, 6 Dec 2016 17:01:41 +0100
+Subject: [PATCH] mtd: spi-nor: improve macronix_quad_enable()
+
+The patch checks whether the Quad Enable bit is already set in the Status
+Register. If so, the function exits immediately with a successful return
+code.
+
+Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
+Reviewed-by: Jagan Teki <jagan@openedev.com>
+Acked-by: Marek Vasut <marek.vasut@gmail.com>
+---
+ drivers/mtd/spi-nor/spi-nor.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+--- a/drivers/mtd/spi-nor/spi-nor.c
++++ b/drivers/mtd/spi-nor/spi-nor.c
+@@ -1305,6 +1305,9 @@ static int macronix_quad_enable(struct s
+ 	val = read_sr(nor);
+ 	if (val < 0)
+ 		return val;
++	if (val & SR_QUAD_EN_MX)
++		return 0;
++
+ 	write_enable(nor);
+ 
+ 	write_sr(nor, val | SR_QUAD_EN_MX);