This is a note to let you know that I've just added the patch titled
staging: panel: fix lcd type
to the 3.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
staging-panel-fix-lcd-type.patch
and it can be found in the queue-3.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 2c20d92dad5db6440cfa88d811b69fd605240ce4 Mon Sep 17 00:00:00 2001
From: Sudip Mukherjee <[email protected]>
Date: Tue, 24 Mar 2015 16:29:32 +0530
Subject: staging: panel: fix lcd type
From: Sudip Mukherjee <[email protected]>
commit 2c20d92dad5db6440cfa88d811b69fd605240ce4 upstream.
the lcd type as defined in the Kconfig is not matching in the code.
as a result the rs, rw and en pins were getting interchanged.
Kconfig defines the value of PANEL_LCD to be 1 if we select custom
configuration but in the code LCD_TYPE_CUSTOM is defined as 5.
my hardware is LCD_TYPE_CUSTOM, but the pins were assigned to it
as pins of LCD_TYPE_OLD, and it was not working.
Now values are corrected with referenece to the values defined in
Kconfig and it is working.
checked on JHD204A lcd with LCD_TYPE_CUSTOM configuration.
Signed-off-by: Sudip Mukherjee <[email protected]>
Acked-by: Willy Tarreau <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/staging/panel/panel.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
--- a/drivers/staging/panel/panel.c
+++ b/drivers/staging/panel/panel.c
@@ -314,11 +314,11 @@ static unsigned char lcd_bits[LCD_PORTS]
* LCD types
*/
#define LCD_TYPE_NONE 0
-#define LCD_TYPE_OLD 1
-#define LCD_TYPE_KS0074 2
-#define LCD_TYPE_HANTRONIX 3
-#define LCD_TYPE_NEXCOM 4
-#define LCD_TYPE_CUSTOM 5
+#define LCD_TYPE_CUSTOM 1
+#define LCD_TYPE_OLD 2
+#define LCD_TYPE_KS0074 3
+#define LCD_TYPE_HANTRONIX 4
+#define LCD_TYPE_NEXCOM 5
/*
* keypad types
@@ -481,7 +481,7 @@ MODULE_PARM_DESC(keypad_type,
static int lcd_type = NOT_SET;
module_param(lcd_type, int, 0000);
MODULE_PARM_DESC(lcd_type,
- "LCD type: 0=none, 1=old //, 2=serial ks0074, 3=hantronix //,
4=nexcom //, 5=compiled-in");
+ "LCD type: 0=none, 1=compiled-in, 2=old, 3=serial ks0074,
4=hantronix, 5=nexcom");
static int lcd_height = NOT_SET;
module_param(lcd_height, int, 0000);
Patches currently in stable-queue which might be from
[email protected] are
queue-3.19/staging-panel-fix-lcd-type.patch
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