LCOV - code coverage report
Current view: top level - drivers/video - of_videomode.c (source / functions) Hit Total Coverage
Test: Real Lines: 0 10 0.0 %
Date: 2020-10-17 15:46:16 Functions: 0 1 0.0 %
Legend: Neither, QEMU, Real, Both Branches: 0 0 -

           Branch data     Line data    Source code
       1                 :            : // SPDX-License-Identifier: GPL-2.0-only
       2                 :            : /*
       3                 :            :  * generic videomode helper
       4                 :            :  *
       5                 :            :  * Copyright (c) 2012 Steffen Trumtrar <s.trumtrar@pengutronix.de>, Pengutronix
       6                 :            :  */
       7                 :            : #include <linux/errno.h>
       8                 :            : #include <linux/export.h>
       9                 :            : #include <linux/of.h>
      10                 :            : #include <video/display_timing.h>
      11                 :            : #include <video/of_display_timing.h>
      12                 :            : #include <video/of_videomode.h>
      13                 :            : #include <video/videomode.h>
      14                 :            : 
      15                 :            : /**
      16                 :            :  * of_get_videomode - get the videomode #<index> from devicetree
      17                 :            :  * @np - devicenode with the display_timings
      18                 :            :  * @vm - set to return value
      19                 :            :  * @index - index into list of display_timings
      20                 :            :  *          (Set this to OF_USE_NATIVE_MODE to use whatever mode is
      21                 :            :  *           specified as native mode in the DT.)
      22                 :            :  *
      23                 :            :  * DESCRIPTION:
      24                 :            :  * Get a list of all display timings and put the one
      25                 :            :  * specified by index into *vm. This function should only be used, if
      26                 :            :  * only one videomode is to be retrieved. A driver that needs to work
      27                 :            :  * with multiple/all videomodes should work with
      28                 :            :  * of_get_display_timings instead.
      29                 :            :  **/
      30                 :          0 : int of_get_videomode(struct device_node *np, struct videomode *vm,
      31                 :            :                      int index)
      32                 :            : {
      33                 :            :         struct display_timings *disp;
      34                 :            :         int ret;
      35                 :            : 
      36                 :          0 :         disp = of_get_display_timings(np);
      37                 :          0 :         if (!disp) {
      38                 :          0 :                 pr_err("%pOF: no timings specified\n", np);
      39                 :          0 :                 return -EINVAL;
      40                 :            :         }
      41                 :            : 
      42                 :          0 :         if (index == OF_USE_NATIVE_MODE)
      43                 :          0 :                 index = disp->native_mode;
      44                 :            : 
      45                 :          0 :         ret = videomode_from_timings(disp, vm, index);
      46                 :            : 
      47                 :          0 :         display_timings_release(disp);
      48                 :            : 
      49                 :          0 :         return ret;
      50                 :            : }
      51                 :            : EXPORT_SYMBOL_GPL(of_get_videomode);
    

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