linux-kernel - [PATCH v2] simplefb: add support for a8b8g8r8 pixel format

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Message-ID: <1370584869-2904-1-git-send-email-acourbot@nvidia.com>
Date:	Fri, 7 Jun 2013 15:01:09 +0900
From:	Alexandre Courbot <acourbot@...dia.com>
To:	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
	Tomi Valkeinen <tomi.valkeinen@...com>,
	Stephen Warren <swarren@...dotorg.org>,
	Olof Johansson <olof@...om.net>
CC:	<gnurou@...il.com>, <linux-kernel@...r.kernel.org>,
	<linux-fbdev@...r.kernel.org>,
	Alexandre Courbot <acourbot@...dia.com>
Subject: [PATCH v2] simplefb: add support for a8b8g8r8 pixel format

A framebuffer of this format is set up by SHIELD's bootloader. This
allows us to use it as a framebuffer console.

Signed-off-by: Alexandre Courbot <acourbot@...dia.com>
Acked-by: Olof Johansson <olof@...om.net>
---
Changes from v1:
- Added description to motivate the change
- Added ack

 Documentation/devicetree/bindings/video/simple-framebuffer.txt | 1 +
 drivers/video/simplefb.c                                       | 1 +
 2 files changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/video/simple-framebuffer.txt b/Documentation/devicetree/bindings/video/simple-framebuffer.txt
index 3ea4605..70c26f3 100644
--- a/Documentation/devicetree/bindings/video/simple-framebuffer.txt
+++ b/Documentation/devicetree/bindings/video/simple-framebuffer.txt
@@ -12,6 +12,7 @@ Required properties:
 - stride: The number of bytes in each line of the framebuffer.
 - format: The format of the framebuffer surface. Valid values are:
   - r5g6b5 (16-bit pixels, d[15:11]=r, d[10:5]=g, d[4:0]=b).
+  - a8b8g8r8 (32-bit pixels, d[31:24]=a, d[23:16]=b, d[15:8]=g, d[7:0]=r).
 
 Example:
 
diff --git a/drivers/video/simplefb.c b/drivers/video/simplefb.c
index e2e9e3e..d7041aa 100644
--- a/drivers/video/simplefb.c
+++ b/drivers/video/simplefb.c
@@ -84,6 +84,7 @@ struct simplefb_format {
 
 static struct simplefb_format simplefb_formats[] = {
 	{ "r5g6b5", 16, {11, 5}, {5, 6}, {0, 5}, {0, 0} },
+	{ "a8b8g8r8", 32, {0, 8}, {8, 8}, {16, 8}, {31, 8} },
 };
 
 struct simplefb_params {
-- 
1.8.3

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