[PATCH] simplefb: print some info about the registered fb

Subsystems: framebuffer layer, the rest

STALE4692d

8 messages, 5 authors, 2013-10-09 · open the first message on its own page

[PATCH] simplefb: print some info about the registered fb

From: Tom Gundersen <hidden>
Date: 2013-09-06 11:48:10

This is similar to the output printed by efifb.

Signed-off-by: Tom Gundersen <redacted>
Cc: Stephen Warren <redacted>
Cc: David Herrmann <redacted>
---

Hi,

Sorry for the resend, got the ml address wrong.

-t

 drivers/video/simplefb.c | 8 ++++++++
 1 file changed, 8 insertions(+)
diff --git a/drivers/video/simplefb.c b/drivers/video/simplefb.c
index 8d78106..4196686 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, mapped to 0x%p\n",
+			     info->fix.smem_start, 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

Re: [PATCH] simplefb: print some info about the registered fb

From: Stephen Warren <hidden>
Date: 2013-09-06 19:11:08

On 09/06/2013 05:49 AM, Tom Gundersen wrote:
This is similar to the output printed by efifb.
Fine by me,
Acked-by: Stephen Warren <redacted>

Re: [PATCH] simplefb: print some info about the registered fb

From: David Herrmann <hidden>
Date: 2013-09-07 11:16:25

Hi Tom

On Fri, Sep 6, 2013 at 1:49 PM, Tom Gundersen [off-list ref] wrote:
quoted hunk
This is similar to the output printed by efifb.

Signed-off-by: Tom Gundersen <redacted>
Cc: Stephen Warren <redacted>
Cc: David Herrmann <redacted>
---

Hi,

Sorry for the resend, got the ml address wrong.

-t

 drivers/video/simplefb.c | 8 ++++++++
 1 file changed, 8 insertions(+)
diff --git a/drivers/video/simplefb.c b/drivers/video/simplefb.c
index 8d78106..4196686 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, mapped to 0x%p\n",
+                            info->fix.smem_start, info->screen_base);
Could we get smem_len, too? Something like:
      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);

(smem_len is __u32, so cast it to avoid truncation if it's defined as
long somewhere. Not sure whether we actually have 16bit int somewhere,
though)

Cheers
David
+       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

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

From: Tom Gundersen <hidden>
Date: 2013-09-07 11:42:37

This is similar to the output printed by efifb.

Signed-off-by: Tom Gundersen <redacted>
Acked-by: Stephen Warren <redacted>
Cc: David Herrmann <redacted>
---

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

Re: [PATCH v2] simplefb: print some info about the registered fb

From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: 2013-09-07 13:55:40

On Sat, Sep 7, 2013 at 1:43 PM, Tom Gundersen [off-list ref] wrote:
+       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,
Please drop the cast, and use 0x%x. __u32 is unsigned int everywhere (where it
matters --- we don't do 16-bit ints).

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

[PATCH v3] simplefb: print some info about the registered fb

From: Tom Gundersen <hidden>
Date: 2013-09-07 14:07:34

This is similar to the output printed by efifb.

Signed-off-by: Tom Gundersen <redacted>
Acked-by: Stephen Warren <redacted>
Cc: David Herrmann <redacted>
---
v2: also print smem_len, as requested by David
v3: don't cast, as requested by Geert

 drivers/video/simplefb.c | 8 ++++++++
 1 file changed, 8 insertions(+)
diff --git a/drivers/video/simplefb.c b/drivers/video/simplefb.c
index a29f1c4..50cbceb 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%x bytes, mapped to 0x%p\n",
+			     info->fix.smem_start, 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

Re: [PATCH v3] simplefb: print some info about the registered fb

From: Tom Gundersen <hidden>
Date: 2013-10-01 16:45:38

On Sat, Sep 7, 2013 at 4:08 PM, Tom Gundersen [off-list ref] wrote:
This is similar to the output printed by efifb.

Signed-off-by: Tom Gundersen <redacted>
Acked-by: Stephen Warren <redacted>
Cc: David Herrmann <redacted>
---
v2: also print smem_len, as requested by David
v3: don't cast, as requested by Geert
Jean-Christophe and Tomi,

What's the status of this, did either of you pick it up for 3.12 or 3.13?

Cheers,

Tom

Re: [PATCH v3] simplefb: print some info about the registered fb

From: Tomi Valkeinen <hidden>
Date: 2013-10-09 09:06:06

On 07/09/13 17:08, Tom Gundersen wrote:
quoted hunk
This is similar to the output printed by efifb.

Signed-off-by: Tom Gundersen <redacted>
Acked-by: Stephen Warren <redacted>
Cc: David Herrmann <redacted>
---
v2: also print smem_len, as requested by David
v3: don't cast, as requested by Geert

 drivers/video/simplefb.c | 8 ++++++++
 1 file changed, 8 insertions(+)
diff --git a/drivers/video/simplefb.c b/drivers/video/simplefb.c
index a29f1c4..50cbceb 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%x bytes, mapped to 0x%p\n",
+			     info->fix.smem_start, 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);
Thanks, queued for 3.13.

 Tomi

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