diff options
| author | Maxime Ripard <[email protected]> | 2024-06-21 16:20:32 +0100 |
|---|---|---|
| committer | Dave Stevenson <[email protected]> | 2024-09-09 13:02:52 +0100 |
| commit | 6ecfe7c2f925b805efbd1c1e2a93890ea7ec37fd (patch) | |
| tree | 8aced5d879d62b63a24dc691320f6afda6679c10 | |
| parent | 59f8b2b7fb8e460881d21c7d5b32604993973879 (diff) | |
drm/vc4: hdmi: Warn if writing to an unknown HDMI register
The VC4 HDMI driver has a bunch of accessors to read from a register.
The read accessor was warning when accessing an unknown register, but
the write one was just returning silently.
Let's make sure we warn also when writing to an unknown register.
Signed-off-by: Maxime Ripard <[email protected]>
Reviewed-by: Maxime Ripard <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Signed-off-by: Dave Stevenson <[email protected]>
| -rw-r--r-- | drivers/gpu/drm/vc4/vc4_hdmi_regs.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_hdmi_regs.h b/drivers/gpu/drm/vc4/vc4_hdmi_regs.h index b04b2fc8d831..68455ce513e7 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi_regs.h +++ b/drivers/gpu/drm/vc4/vc4_hdmi_regs.h @@ -498,8 +498,11 @@ static inline void vc4_hdmi_write(struct vc4_hdmi *hdmi, field = &variant->registers[reg]; base = __vc4_hdmi_get_field_base(hdmi, field->reg); - if (!base) + if (!base) { + dev_warn(&hdmi->pdev->dev, + "Unknown register ID %u\n", reg); return; + } writel(value, base + field->offset); } |