drm/panel: fix unmet dependency bug for DRM_PANEL_HIMAX_HX83121A

Currently, DRM_PANEL_HIMAX_HX83121A selects DRM_DISPLAY_DSC_HELPER
without also ensuring DRM_DISPLAY_HELPER is enabled, causing an unmet
dependency:

WARNING: unmet direct dependencies detected for DRM_DISPLAY_DSC_HELPER
  Depends on [n]: HAS_IOMEM [=y] && DRM [=m] && DRM_DISPLAY_HELPER [=n]
  Selected by [m]:
  - DRM_PANEL_HIMAX_HX83121A [=m] && HAS_IOMEM [=y] && DRM [=m] && DRM_PANEL [=y] && OF [=y] && DRM_MIPI_DSI [=y] && BACKLIGHT_CLASS_DEVICE [=m]
  - DRM_PANEL_ILITEK_ILI9882T [=m] && HAS_IOMEM [=y] && DRM [=m] && DRM_PANEL [=y] && OF [=y] && DRM_MIPI_DSI [=y] && BACKLIGHT_CLASS_DEVICE [=m]

Many other DRM_PANEL_* options select DRM_DISPLAY_HELPER when selecting
DRM_DISPLAY_DSC_HELPER, let's do the same here.

This unmet dependency bug was found by kconfirm, a static analysis tool
for Kconfig.

Fixes: defab7b01e08 ("drm/panel: hx83121a: select DRM_DISPLAY_DSC_HELPER")
Signed-off-by: Julian Braha <julianbraha@gmail.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20260711234230.2236041-1-julianbraha@gmail.com

diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
index fda7a3ee67e6b0b6f5cc131f1eee61dc5efa2753..3eac4d0f88bc7e7f067426d452f561b0b62a4265 100644 (file)
--- a/drivers/gpu/drm/panel/Kconfig
+++ b/drivers/gpu/drm/panel/Kconfig
@@ -232,6 +232,7 @@ config DRM_PANEL_HIMAX_HX83121A
        depends on OF
        depends on DRM_MIPI_DSI
        depends on BACKLIGHT_CLASS_DEVICE
+       select DRM_DISPLAY_HELPER
        select DRM_DISPLAY_DSC_HELPER
        select DRM_KMS_HELPER
        help