drm/i915/display: Move enable_dpcd_backlight module parameter under display

Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231024124109.384973-17-jouni.hogander@intel.com

drivers/gpu/drm/i915/display/intel_display_params.c

@@ -72,6 +72,10 @@ intel_display_param_named_unsafe(edp_vswing, int, 0400,
 	"(0=use value from vbt [default], 1=low power swing(200mV),"
 	"2=default swing(400mV))");
 
+intel_display_param_named(enable_dpcd_backlight, int, 0400,
+	"Enable support for DPCD backlight control"
+	"(-1=use per-VBT LFP backlight type setting [default], 0=disabled, 1=enable, 2=force VESA interface, 3=force Intel interface)");
+
 intel_display_param_named_unsafe(enable_fbc, int, 0400,
 	"Enable frame buffer compression for power savings "
 	"(default: -1 (use per-chip default))");

drivers/gpu/drm/i915/display/intel_display_params.h

@@ -35,6 +35,7 @@ struct drm_i915_private;
 	param(bool, enable_ips, true, 0600) \
 	param(int, invert_brightness, 0, 0600) \
 	param(int, edp_vswing, 0, 0400) \
+	param(int, enable_dpcd_backlight, -1, 0600) \
 	param(int, enable_fbc, -1, 0600) \
 	param(int, enable_psr, -1, 0600) \
 	param(bool, psr_safest_params, false, 0400) \

drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c

@@ -146,7 +146,7 @@ intel_dp_aux_supports_hdr_backlight(struct intel_connector *connector)
 	 * HDR static metadata we need to start maintaining table of
 	 * ranges for such panels.
 	 */
-	if (i915->params.enable_dpcd_backlight != INTEL_DP_AUX_BACKLIGHT_FORCE_INTEL &&
+	if (i915->display.params.enable_dpcd_backlight != INTEL_DP_AUX_BACKLIGHT_FORCE_INTEL &&
 	    !(connector->base.hdr_sink_metadata.hdmi_type1.metadata_type &
 	      BIT(HDMI_STATIC_METADATA_TYPE1))) {
 		drm_info(&i915->drm,
@@ -489,7 +489,7 @@ int intel_dp_aux_init_backlight_funcs(struct intel_connector *connector)
 	/* Check the VBT and user's module parameters to figure out which
 	 * interfaces to probe
 	 */
-	switch (i915->params.enable_dpcd_backlight) {
+	switch (i915->display.params.enable_dpcd_backlight) {
 	case INTEL_DP_AUX_BACKLIGHT_OFF:
 		return -ENODEV;
 	case INTEL_DP_AUX_BACKLIGHT_AUTO:

drivers/gpu/drm/i915/i915_params.c

@@ -140,10 +140,6 @@ i915_param_named_unsafe(inject_probe_failure, uint, 0400,
 	"Force an error after a number of failure check points (0:disabled (default), N:force failure at the Nth failure check point)");
 #endif
 
-i915_param_named(enable_dpcd_backlight, int, 0400,
-	"Enable support for DPCD backlight control"
-	"(-1=use per-VBT LFP backlight type setting [default], 0=disabled, 1=enable, 2=force VESA interface, 3=force Intel interface)");
-
 #if IS_ENABLED(CONFIG_DRM_I915_GVT)
 i915_param_named(enable_gvt, bool, 0400,
 	"Enable support for Intel GVT-g graphics virtualization host support(default:false)");

drivers/gpu/drm/i915/i915_params.h

@@ -57,7 +57,6 @@ struct drm_printer;
 	param(int, mmio_debug, -IS_ENABLED(CONFIG_DRM_I915_DEBUG_MMIO), 0600) \
 	param(unsigned int, reset, 3, 0600) \
 	param(unsigned int, inject_probe_failure, 0, 0) \
-	param(int, enable_dpcd_backlight, -1, 0600) \
 	param(char *, force_probe, CONFIG_DRM_I915_FORCE_PROBE, 0400) \
 	param(unsigned int, request_timeout_ms, CONFIG_DRM_I915_REQUEST_TIMEOUT, CONFIG_DRM_I915_REQUEST_TIMEOUT ? 0600 : 0) \
 	param(unsigned int, lmem_size, 0, 0400) \