gpu: drm: adp: Add Apple Display Pipe driver

WhatAmISupposedToPutHere · marcan · commit a0472061a4a3 · 2023-11-19T15:58:01.000+09:00
This display controller is present on M-series chips and is used
to drive the touchbar display.

Signed-off-by: Sasha Finkelstein &lt;fnkl.kernel@gmail.com&gt;
Signed-off-by: Janne Grunau &lt;j@jannau.net&gt;
diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
@@ -379,6 +379,8 @@ source "drivers/gpu/drm/mcde/Kconfig"
 
 source "drivers/gpu/drm/tidss/Kconfig"
 
+source "drivers/gpu/drm/adp/Kconfig"
+
 source "drivers/gpu/drm/xlnx/Kconfig"
 
 source "drivers/gpu/drm/gud/Kconfig"
diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile
@@ -185,6 +185,7 @@ obj-y			+= mxsfb/
 obj-y			+= tiny/
 obj-$(CONFIG_DRM_PL111) += pl111/
 obj-$(CONFIG_DRM_TVE200) += tve200/
+obj-$(CONFIG_DRM_ADP) += adp/
 obj-$(CONFIG_DRM_XEN) += xen/
 obj-$(CONFIG_DRM_VBOXVIDEO) += vboxvideo/
 obj-$(CONFIG_DRM_LIMA)  += lima/
diff --git a/drivers/gpu/drm/adp/Kconfig b/drivers/gpu/drm/adp/Kconfig
@@ -0,0 +1,12 @@
+# SPDX-License-Identifier: GPL-2.0-only OR MIT
+config DRM_ADP
+	tristate "DRM Support for pre-DCP Apple display controllers"
+	depends on DRM && OF && ARM64
+	depends on ARCH_APPLE || COMPILE_TEST
+	select DRM_KMS_HELPER
+	select DRM_KMS_DMA_HELPER
+	select DRM_GEM_DMA_HELPER
+	select VIDEOMODE_HELPERS
+	select DRM_MIPI_DSI
+	help
+	  Say Y if you have an Apple Arm laptop with a touchbar.
diff --git a/drivers/gpu/drm/adp/Makefile b/drivers/gpu/drm/adp/Makefile
@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0-only OR MIT
+
+adpdrm-y := adp_drv.o
+obj-$(CONFIG_DRM_ADP) += adpdrm.o
+obj-$(CONFIG_DRM_ADP) += panel-summit.o
diff --git a/drivers/gpu/drm/adp/adp_drv.c b/drivers/gpu/drm/adp/adp_drv.c
