Thread (18 messages) flat view 18 messages, 6 authors, 2011-02-10

Re: [RFC v2 PATCH 1/7] matrix_keypad: Increase the max limit of rows and columns

From: Eric Miao <hidden>
Date: 2011-02-09 08:02:50
Also in: linux-arm-msm, lkml

On Tue, Feb 1, 2011 at 9:47 PM, Anirudh Ghayal [off-list ref] wrote:
From: Trilok Soni <redacted>

Some keyboard controller have support for more than
16 columns and rows. Moving this value to 32.

Cc: Eric Miao <redacted>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Trilok Soni <redacted>
This looks good to me, as long as the bits don't exceed 256, which
is used in the #KEY() macro. So far, 32 looks to be a sane number
to me, unless we have further requirement to get this larger.

Acked-by: Eric Miao <redacted>

quoted hunk ↗ jump to hunk
---
Changes from v1:
Moved the max columns and rows to 32

 include/linux/input/matrix_keypad.h |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/linux/input/matrix_keypad.h b/include/linux/input/matrix_keypad.h
index 6974746..fe7c4b9 100644
--- a/include/linux/input/matrix_keypad.h
+++ b/include/linux/input/matrix_keypad.h
@@ -4,8 +4,8 @@
 #include <linux/types.h>
 #include <linux/input.h>

-#define MATRIX_MAX_ROWS                16
-#define MATRIX_MAX_COLS                16
+#define MATRIX_MAX_ROWS                32
+#define MATRIX_MAX_COLS                32

 #define KEY(row, col, val)     ((((row) & (MATRIX_MAX_ROWS - 1)) << 24) |\
                                (((col) & (MATRIX_MAX_COLS - 1)) << 16) |\
--
1.7.3.5
--
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