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| author | Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> | 2021-08-22 02:44:27 +0300 |
|---|---|---|
| committer | Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> | 2021-10-07 05:42:04 +0300 |
| commit | 206c54710882d85b838f1899fd58adf8bad9454c (patch) | |
| tree | b49ff6693095f709733f901ecac8349e523ad31b /drivers/gpu/drm/rcar-du/rcar_du_drv.c | |
| parent | 187502afe87a0fc96832056558978fa423920ee0 (diff) | |
| download | linux-206c54710882d85b838f1899fd58adf8bad9454c.tar.xz | |
drm: rcar-du: Improve kernel log messages when initializing encoders
Improve the debugging and error messages printing when initializing
encoders by replacing the output number by the output name, printing the
bridge OF node name, and the error code of failed operations.
While at it, move the related rcar_du_output enumeration from
rcar_du_crtc.h to rcar_du_drv.h as it's not specific to the CRTC.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Diffstat (limited to 'drivers/gpu/drm/rcar-du/rcar_du_drv.c')
| -rw-r--r-- | drivers/gpu/drm/rcar-du/rcar_du_drv.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.c b/drivers/gpu/drm/rcar-du/rcar_du_drv.c index 4ac26d08ebb4..d4dc101dc1d7 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.c @@ -502,6 +502,24 @@ static const struct of_device_id rcar_du_of_table[] = { MODULE_DEVICE_TABLE(of, rcar_du_of_table); +const char *rcar_du_output_name(enum rcar_du_output output) +{ + static const char * const names[] = { + [RCAR_DU_OUTPUT_DPAD0] = "DPAD0", + [RCAR_DU_OUTPUT_DPAD1] = "DPAD1", + [RCAR_DU_OUTPUT_LVDS0] = "LVDS0", + [RCAR_DU_OUTPUT_LVDS1] = "LVDS1", + [RCAR_DU_OUTPUT_HDMI0] = "HDMI0", + [RCAR_DU_OUTPUT_HDMI1] = "HDMI1", + [RCAR_DU_OUTPUT_TCON] = "TCON", + }; + + if (output >= ARRAY_SIZE(names) || !names[output]) + return "UNKNOWN"; + + return names[output]; +} + /* ----------------------------------------------------------------------------- * DRM operations */ |