drm: split build lists one per line and sort

While it takes more vertical space, sorted build lists with one object
per line are arguably easier to manage, especially when there are
conflicting changes.

Split anything with more than one object file.

v2: also split drm_cache.o and put it after drm_bridge.o (Andi)

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Acked-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20221011140830.3257655-1-jani.nikula@intel.com

drivers/gpu/drm/Makefile

@@ -3,32 +3,71 @@
 # Makefile for the drm device driver.  This driver provides support for the
 # Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
 
-drm-y       :=	drm_aperture.o drm_auth.o drm_cache.o \
-		drm_file.o drm_gem.o drm_ioctl.o \
-		drm_drv.o \
-		drm_sysfs.o drm_mm.o \
-		drm_crtc.o drm_fourcc.o drm_modes.o drm_edid.o drm_displayid.o \
-		drm_trace_points.o drm_prime.o \
-		drm_vma_manager.o \
-		drm_modeset_lock.o drm_atomic.o drm_bridge.o \
-		drm_framebuffer.o drm_connector.o drm_blend.o \
-		drm_encoder.o drm_mode_object.o drm_property.o \
-		drm_plane.o drm_color_mgmt.o drm_print.o \
-		drm_dumb_buffers.o drm_mode_config.o drm_vblank.o \
-		drm_syncobj.o drm_lease.o drm_writeback.o drm_client.o \
-		drm_client_modeset.o drm_atomic_uapi.o \
-		drm_managed.o drm_vblank_work.o
-drm-$(CONFIG_DRM_LEGACY) += drm_agpsupport.o drm_bufs.o drm_context.o drm_dma.o \
-			    drm_hashtab.o drm_irq.o drm_legacy_misc.o drm_lock.o \
-			    drm_memory.o drm_scatter.o drm_vm.o
+drm-y := \
+	drm_aperture.o \
+	drm_atomic.o \
+	drm_atomic_uapi.o \
+	drm_auth.o \
+	drm_blend.o \
+	drm_bridge.o \
+	drm_cache.o \
+	drm_client.o \
+	drm_client_modeset.o \
+	drm_color_mgmt.o \
+	drm_connector.o \
+	drm_crtc.o \
+	drm_displayid.o \
+	drm_drv.o \
+	drm_dumb_buffers.o \
+	drm_edid.o \
+	drm_encoder.o \
+	drm_file.o \
+	drm_fourcc.o \
+	drm_framebuffer.o \
+	drm_gem.o \
+	drm_ioctl.o \
+	drm_lease.o \
+	drm_managed.o \
+	drm_mm.o \
+	drm_mode_config.o \
+	drm_mode_object.o \
+	drm_modes.o \
+	drm_modeset_lock.o \
+	drm_plane.o \
+	drm_prime.o \
+	drm_print.o \
+	drm_property.o \
+	drm_syncobj.o \
+	drm_sysfs.o \
+	drm_trace_points.o \
+	drm_vblank.o \
+	drm_vblank_work.o \
+	drm_vma_manager.o \
+	drm_writeback.o
+drm-$(CONFIG_DRM_LEGACY) += \
+	drm_agpsupport.o \
+	drm_bufs.o \
+	drm_context.o \
+	drm_dma.o \
+	drm_hashtab.o \
+	drm_irq.o \
+	drm_legacy_misc.o \
+	drm_lock.o \
+	drm_memory.o \
+	drm_scatter.o \
+	drm_vm.o
 drm-$(CONFIG_DRM_LIB_RANDOM) += lib/drm_random.o
 drm-$(CONFIG_COMPAT) += drm_ioc32.o
 drm-$(CONFIG_DRM_PANEL) += drm_panel.o
 drm-$(CONFIG_OF) += drm_of.o
 drm-$(CONFIG_PCI) += drm_pci.o
-drm-$(CONFIG_DEBUG_FS) += drm_debugfs.o drm_debugfs_crc.o
+drm-$(CONFIG_DEBUG_FS) += \
+	drm_debugfs.o \
+	drm_debugfs_crc.o
 drm-$(CONFIG_DRM_LOAD_EDID_FIRMWARE) += drm_edid_load.o
-drm-$(CONFIG_DRM_PRIVACY_SCREEN) += drm_privacy_screen.o drm_privacy_screen_x86.o
+drm-$(CONFIG_DRM_PRIVACY_SCREEN) += \
+	drm_privacy_screen.o \
+	drm_privacy_screen_x86.o
 obj-$(CONFIG_DRM)	+= drm.o
 
 obj-$(CONFIG_DRM_NOMODESET) += drm_nomodeset.o
@@ -57,16 +96,24 @@ obj-$(CONFIG_DRM_TTM_HELPER) += drm_ttm_helper.o
 # Modesetting helpers
 #
 
-drm_kms_helper-y := drm_bridge_connector.o drm_crtc_helper.o \
-		drm_encoder_slave.o drm_flip_work.o \
-		drm_probe_helper.o \
-		drm_plane_helper.o drm_atomic_helper.o \
-		drm_kms_helper_common.o \
-		drm_simple_kms_helper.o drm_modeset_helper.o \
-		drm_gem_atomic_helper.o \
-		drm_gem_framebuffer_helper.o \
-		drm_atomic_state_helper.o drm_damage_helper.o \
-		drm_format_helper.o drm_self_refresh_helper.o drm_rect.o
+drm_kms_helper-y := \
+	drm_atomic_helper.o \
+	drm_atomic_state_helper.o \
+	drm_bridge_connector.o \
+	drm_crtc_helper.o \
+	drm_damage_helper.o \
+	drm_encoder_slave.o \
+	drm_flip_work.o \
+	drm_format_helper.o \
+	drm_gem_atomic_helper.o \
+	drm_gem_framebuffer_helper.o \
+	drm_kms_helper_common.o \
+	drm_modeset_helper.o \
+	drm_plane_helper.o \
+	drm_probe_helper.o \
+	drm_rect.o \
+	drm_self_refresh_helper.o \
+	drm_simple_kms_helper.o
 drm_kms_helper-$(CONFIG_DRM_PANEL_BRIDGE) += bridge/panel.o
 drm_kms_helper-$(CONFIG_DRM_FBDEV_EMULATION) += drm_fb_helper.o
 obj-$(CONFIG_DRM_KMS_HELPER) += drm_kms_helper.o

drivers/gpu/drm/display/Makefile

@@ -3,13 +3,15 @@
 obj-$(CONFIG_DRM_DP_AUX_BUS) += drm_dp_aux_bus.o
 
 drm_display_helper-y := drm_display_helper_mod.o
-drm_display_helper-$(CONFIG_DRM_DISPLAY_DP_HELPER) += drm_dp_dual_mode_helper.o \
-						      drm_dp_helper.o \
-						      drm_dp_mst_topology.o \
-						      drm_dsc_helper.o
+drm_display_helper-$(CONFIG_DRM_DISPLAY_DP_HELPER) += \
+	drm_dp_dual_mode_helper.o \
+	drm_dp_helper.o \
+	drm_dp_mst_topology.o \
+	drm_dsc_helper.o
 drm_display_helper-$(CONFIG_DRM_DISPLAY_HDCP_HELPER) += drm_hdcp_helper.o
-drm_display_helper-$(CONFIG_DRM_DISPLAY_HDMI_HELPER) += drm_hdmi_helper.o \
-							drm_scdc_helper.o
+drm_display_helper-$(CONFIG_DRM_DISPLAY_HDMI_HELPER) += \
+	drm_hdmi_helper.o \
+	drm_scdc_helper.o
 drm_display_helper-$(CONFIG_DRM_DP_AUX_CHARDEV) += drm_dp_aux_dev.o
 drm_display_helper-$(CONFIG_DRM_DP_CEC) += drm_dp_cec.o