[PATCH 1/4] drm/mediatek: mtk_hdmi_ddc_v2: Fix non-static global variable

[Louis-Alexis Eyraud <louisalexis.eyraud@collabora.com>]

The struct 'mtk_hdmi_ddc_v2_driver' is not used outside of the
mtk_hdmi_ddc_v2.c file, so make it static to silence sparse warning:
```
drivers/gpu/drm/mediatek/mtk_hdmi_ddc_v2.c:392:24: sparse: warning:
  symbol 'mtk_hdmi_ddc_v2_driver' was not declared. Should it be
  static?
```

Fixes: 8d0f79886273 ("drm/mediatek: Introduce HDMI/DDC v2 for MT8195/MT8188")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202604132044.fcYjEcU8-lkp@intel.com/
Signed-off-by: Louis-Alexis Eyraud <louisalexis.eyraud@collabora.com>
---
 drivers/gpu/drm/mediatek/mtk_hdmi_ddc_v2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi_ddc_v2.c b/drivers/gpu/drm/mediatek/mtk_hdmi_ddc_v2.c
index d937219fdb7e..31e81a6de6d8 100644
--- a/drivers/gpu/drm/mediatek/mtk_hdmi_ddc_v2.c
+++ b/drivers/gpu/drm/mediatek/mtk_hdmi_ddc_v2.c
@@ -389,7 +389,7 @@ static const struct of_device_id mtk_hdmi_ddc_v2_match[] = {
 };
 MODULE_DEVICE_TABLE(of, mtk_hdmi_ddc_v2_match);
 
-struct platform_driver mtk_hdmi_ddc_v2_driver = {
+static struct platform_driver mtk_hdmi_ddc_v2_driver = {
 	.probe = mtk_hdmi_ddc_v2_probe,
 	.driver = {
 		.name = "mediatek-hdmi-ddc-v2",

-- 
2.54.0