diff mbox series

[v8,10/12] asm-generic: unaligned: add get_unaligned_le24()

Message ID 20261002-add-genio-510-and-genio-700-hdmi-v8-10-2a6de7cf2a88@baylibre.com
State Under Review
Delegated to: David Lechner
Headers show
Series mediatek: add HDMI pipeline support for MT8188 based boards | expand

Commit Message

Julien Stephan Oct. 2, 2026, 1:25 p.m. UTC 
Add get_unaligned_le24(), mirroring the helper of the same name in
Linux, to read a 24-bit little-endian value from a possibly unaligned
buffer. The MediaTek HDMI driver uses it to pack InfoFrame bytes into
the 24-bit little-endian controller register fields.

Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: Julien Stephan <jstephan@baylibre.com>
---
 include/asm-generic/unaligned.h | 10 ++++++++++
 1 file changed, 10 insertions(+)
diff mbox series

Patch

diff --git a/include/asm-generic/unaligned.h b/include/asm-generic/unaligned.h
index 9e5d93ec304..a68bd8f1991 100644
--- a/include/asm-generic/unaligned.h
+++ b/include/asm-generic/unaligned.h
@@ -22,6 +22,16 @@  static inline u16 get_unaligned_le16(const void *p)
 	return le16_to_cpu(__get_unaligned_t(__le16, p));
 }
 
+static inline u32 __get_unaligned_le24(const u8 *p)
+{
+	return p[0] | p[1] << 8 | p[2] << 16;
+}
+
+static inline u32 get_unaligned_le24(const void *p)
+{
+	return __get_unaligned_le24(p);
+}
+
 static inline u32 get_unaligned_le32(const void *p)
 {
 	return le32_to_cpu(__get_unaligned_t(__le32, p));