linux-kernel - [PATCH 5.1 080/128] mtd: maps: physmap: Store gpio

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Date:   Mon, 20 May 2019 14:14:27 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Chris Packham <chris.packham@...iedtelesis.co.nz>,
        Boris Brezillon <boris.brezillon@...labora.com>,
        Richard Weinberger <richard@....at>
Subject: [PATCH 5.1 080/128] mtd: maps: physmap: Store gpio_values correctly

From: Chris Packham <chris.packham@...iedtelesis.co.nz>

commit 64d14c6fe040361ff6aecb825e392cf97837cd9e upstream.

When the gpio-addr-flash.c driver was merged with physmap-core.c the
code to store the current gpio_values was lost. This meant that once a
gpio was asserted it was never de-asserted. Fix this by storing the
current offset in gpio_values like the old driver used to.

Fixes: commit ba32ce95cbd9 ("mtd: maps: Merge gpio-addr-flash.c into physmap-core.c")
Cc: <stable@...r.kernel.org>
Signed-off-by: Chris Packham <chris.packham@...iedtelesis.co.nz>
Reviewed-by: Boris Brezillon <boris.brezillon@...labora.com>
Signed-off-by: Richard Weinberger <richard@....at>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/mtd/maps/physmap-core.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/mtd/maps/physmap-core.c
+++ b/drivers/mtd/maps/physmap-core.c
@@ -132,6 +132,8 @@ static void physmap_set_addr_gpios(struc
 
 		gpiod_set_value(info->gpios->desc[i], !!(BIT(i) & ofs));
 	}
+
+	info->gpio_values = ofs;
 }
 
 #define win_mask(order)		(BIT(order) - 1)