The kerneldoc for struct mtk_disp_aal is missing: write one and
document this structure.

Reviewed-by: CK Hu <ck.hu@mediatek.com>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
 drivers/gpu/drm/mediatek/mtk_disp_aal.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/gpu/drm/mediatek/mtk_disp_aal.c b/drivers/gpu/drm/mediatek/mtk_disp_aal.c
index 15f91cea9f20..7b3e1c275056 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_aal.c
+++ b/drivers/gpu/drm/mediatek/mtk_disp_aal.c
@@ -35,6 +35,13 @@ struct mtk_disp_aal_data {
 	bool has_gamma;
 };
 
+ /**
+ * struct mtk_disp_aal - Display Adaptive Ambient Light driver structure
+ * @clk:      clock for DISP_AAL controller
+ * @regs:     MMIO registers base
+ * @cmdq_reg: CMDQ Client register
+ * @data:     platform specific data for DISP_AAL
+ */
 struct mtk_disp_aal {
 	struct clk *clk;
 	void __iomem *regs;
-- 
2.42.0