summaryrefslogtreecommitdiff
path: root/drivers/auxdisplay/hd44780_common.c
diff options
context:
space:
mode:
authorLars Poeschel <poeschel@lemonage.de>2020-11-03 12:58:05 +0300
committerMiguel Ojeda <ojeda@kernel.org>2020-11-04 13:04:02 +0300
commit718e05ed92ecac0d9d3954bcc8064527c3ce7565 (patch)
treee724e59f1c8e189aa82ef9585a10c412f4e13007 /drivers/auxdisplay/hd44780_common.c
parent66ce7d5c1e124b497f45aead50df1dc3c2873382 (diff)
downloadlinux-718e05ed92ecac0d9d3954bcc8064527c3ce7565.tar.xz
auxdisplay: Introduce hd44780_common.[ch]
There is some hd44780 specific code in charlcd and this code is used by multiple drivers. To make charlcd independent from this device specific code this has to be moved to a place where the multiple drivers can share their common code. This common place is now introduced as hd44780_common. Reviewed-by: Willy Tarreau <w@1wt.eu> Signed-off-by: Lars Poeschel <poeschel@lemonage.de> Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Diffstat (limited to 'drivers/auxdisplay/hd44780_common.c')
-rw-r--r--drivers/auxdisplay/hd44780_common.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/auxdisplay/hd44780_common.c b/drivers/auxdisplay/hd44780_common.c
new file mode 100644
index 000000000000..2fdea29d6a8f
--- /dev/null
+++ b/drivers/auxdisplay/hd44780_common.c
@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+#include <linux/module.h>
+#include <linux/slab.h>
+
+#include "hd44780_common.h"
+
+struct hd44780_common *hd44780_common_alloc(void)
+{
+ struct hd44780_common *hd;
+
+ hd = kzalloc(sizeof(*hd), GFP_KERNEL);
+ if (!hd)
+ return NULL;
+
+ return hd;
+}
+EXPORT_SYMBOL_GPL(hd44780_common_alloc);
+
+MODULE_LICENSE("GPL");