linux-kernel - [PATCH v2] simplefb: print some info about the registered fb

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Date:	Sat,  7 Sep 2013 13:43:30 +0200
From:	Tom Gundersen <teg@...m.no>
To:	linux-fbdev@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, tomi.valkeinen@...com,
	plagnioj@...osoft.com, Tom Gundersen <teg@...m.no>,
	David Herrmann <dh.herrmann@...il.com>
Subject: [PATCH v2] simplefb: print some info about the registered fb

This is similar to the output printed by efifb.

Signed-off-by: Tom Gundersen <teg@...m.no>
Acked-by: Stephen Warren <swarren@...dotorg.org>
Cc: David Herrmann <dh.herrmann@...il.com>
---

v2: also print smem_len as requested by David

 drivers/video/simplefb.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/video/simplefb.c b/drivers/video/simplefb.c
index 8d78106..80cf074 100644
--- a/drivers/video/simplefb.c
+++ b/drivers/video/simplefb.c
@@ -220,6 +220,14 @@ static int simplefb_probe(struct platform_device *pdev)
 	}
 	info->pseudo_palette = (void *)(info + 1);
 
+	dev_info(&pdev->dev, "framebuffer at 0x%lx, 0x%lx bytes, mapped to 0x%p\n",
+			     info->fix.smem_start, (unsigned long) info->fix.smem_len,
+			     info->screen_base);
+	dev_info(&pdev->dev, "format=%s, mode=%dx%dx%d, linelength=%d\n",
+			     params.format->name,
+			     info->var.xres, info->var.yres,
+			     info->var.bits_per_pixel, info->fix.line_length);
+
 	ret = register_framebuffer(info);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "Unable to register simplefb: %d\n", ret);
-- 
1.8.4

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