Re: [PATCH 1/1 linux-next] omap_vout: use swap() in omapvid_init()

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On Tuesday 19 May 2015 12:01 AM, Fabian Frederick wrote:


On 18 May 2015 at 20:20 Vaibhav Hiremath <vaibhav.hiremath@xxxxxxxxxx> wrote:




On Monday 18 May 2015 11:24 PM, Fabian Frederick wrote:
Use kernel.h macro definition.

Signed-off-by: Fabian Frederick <fabf@xxxxxxxxx>
---
    drivers/media/platform/omap/omap_vout.c | 10 +++-------
    1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/drivers/media/platform/omap/omap_vout.c
b/drivers/media/platform/omap/omap_vout.c
index 17b189a..f09c5f1 100644
--- a/drivers/media/platform/omap/omap_vout.c
+++ b/drivers/media/platform/omap/omap_vout.c
@@ -445,7 +445,7 @@ static int omapvid_init(struct omap_vout_device *vout,
u32 addr)
      int ret = 0, i;
      struct v4l2_window *win;
      struct omap_overlay *ovl;
-   int posx, posy, outw, outh, temp;
+   int posx, posy, outw, outh;
      struct omap_video_timings *timing;
      struct omapvideo_info *ovid = &vout->vid_info;

@@ -468,9 +468,7 @@ static int omapvid_init(struct omap_vout_device *vout,
u32 addr)
                      /* Invert the height and width for 90
                       * and 270 degree rotation
                       */
-                   temp = outw;
-                   outw = outh;
-                   outh = temp;
+                   swap(outw, outh);
                      posy = (timing->y_res - win->w.width) - win->w.left;
                      posx = win->w.top;
                      break;
@@ -481,9 +479,7 @@ static int omapvid_init(struct omap_vout_device *vout,
u32 addr)
                      break;

              case dss_rotation_270_degree:
-                   temp = outw;
-                   outw = outh;
-                   outh = temp;
+                   swap(outw, outh);
                      posy = win->w.left;
                      posx = (timing->x_res - win->w.height) - win->w.top;
                      break;



Curious to know,
How do you test this? Do you have any OMAP2/3 or AM335x board?
Does this driver still works?

Hello Vaibhav,

    Unfortunately I can't test it.


Thats what I expected.

I am doubtful that anyone still uses this driver.
With DRM framework support, I see very little use of this driver.

Also there are some hacks regarding buffer management, that need to be
fixed if at all we want to support it.

I would really want to slowly kill this driver, if no one uses it.

Thanks,
Vaibhav
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