Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted

Pull networking updates from Jakub Kicinski:
 "Core:

   - Add dedicated kmem_cache for typical/small skb->head, avoid having
     to access struct page at kfree time, and improve memory use.

   - Introduce sysctl to set default RPS configuration for new netdevs.

   - Define Netlink protocol specification format which can be used to
     describe messages used by each family and auto-generate parsers.
     Add tools for generating kernel data structures and uAPI headers.

   - Expose all net/core sysctls inside netns.

   - Remove 4s sleep in netpoll if carrier is instantly detected on
     boot.

   - Add configurable limit of MDB entries per port, and port-vlan.

   - Continue populating drop reasons throughout the stack.

   - Retire a handful of legacy Qdiscs and classifiers.

  Protocols:

   - Support IPv4 big TCP (TSO frames larger than 64kB).

   - Add IP_LOCAL_PORT_RANGE socket option, to control local port range
     on socket by socket basis.

   - Track and report in procfs number of MPTCP sockets used.

   - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path
     manager.

   - IPv6: don't check net.ipv6.route.max_size and rely on garbage
     collection to free memory (similarly to IPv4).

   - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986).

   - ICMP: add per-rate limit counters.

   - Add support for user scanning requests in ieee802154.

   - Remove static WEP support.

   - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate
     reporting.

   - WiFi 7 EHT channel puncturing support (client & AP).

  BPF:

   - Add a rbtree data structure following the "next-gen data structure"
     precedent set by recently added linked list, that is, by using
     kfunc + kptr instead of adding a new BPF map type.

   - Expose XDP hints via kfuncs with initial support for RX hash and
     timestamp metadata.

   - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to
     better support decap on GRE tunnel devices not operating in collect
     metadata.

   - Improve x86 JIT's codegen for PROBE_MEM runtime error checks.

   - Remove the need for trace_printk_lock for bpf_trace_printk and
     bpf_trace_vprintk helpers.

   - Extend libbpf's bpf_tracing.h support for tracing arguments of
     kprobes/uprobes and syscall as a special case.

   - Significantly reduce the search time for module symbols by
     livepatch and BPF.

   - Enable cpumasks to be used as kptrs, which is useful for tracing
     programs tracking which tasks end up running on which CPUs in
     different time intervals.

   - Add support for BPF trampoline on s390x and riscv64.

   - Add capability to export the XDP features supported by the NIC.

   - Add __bpf_kfunc tag for marking kernel functions as kfuncs.

   - Add cgroup.memory=nobpf kernel parameter option to disable BPF
     memory accounting for container environments.

  Netfilter:

   - Remove the CLUSTERIP target. It has been marked as obsolete for
     years, and we still have WARN splats wrt races of the out-of-band
     /proc interface installed by this target.

   - Add 'destroy' commands to nf_tables. They are identical to the
     existing 'delete' commands, but do not return an error if the
     referenced object (set, chain, rule...) did not exist.

  Driver API:

   - Improve cpumask_local_spread() locality to help NICs set the right
     IRQ affinity on AMD platforms.

   - Separate C22 and C45 MDIO bus transactions more clearly.

   - Introduce new DCB table to control DSCP rewrite on egress.

   - Support configuration of Physical Layer Collision Avoidance (PLCA)
     Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of
     shared medium Ethernet.

   - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing
     preemption of low priority frames by high priority frames.

   - Add support for controlling MACSec offload using netlink SET.

   - Rework devlink instance refcounts to allow registration and
     de-registration under the instance lock. Split the code into
     multiple files, drop some of the unnecessarily granular locks and
     factor out common parts of netlink operation handling.

   - Add TX frame aggregation parameters (for USB drivers).

   - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning
     messages with notifications for debug.

   - Allow offloading of UDP NEW connections via act_ct.

   - Add support for per action HW stats in TC.

   - Support hardware miss to TC action (continue processing in SW from
     a specific point in the action chain).

   - Warn if old Wireless Extension user space interface is used with
     modern cfg80211/mac80211 drivers. Do not support Wireless
     Extensions for Wi-Fi 7 devices at all. Everyone should switch to
     using nl80211 interface instead.

   - Improve the CAN bit timing configuration. Use extack to return
     error messages directly to user space, update the SJW handling,
     including the definition of a new default value that will benefit
     CAN-FD controllers, by increasing their oscillator tolerance.

  New hardware / drivers:

   - Ethernet:
      - nVidia BlueField-3 support (control traffic driver)
      - Ethernet support for imx93 SoCs
      - Motorcomm yt8531 gigabit Ethernet PHY
      - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA)
      - Microchip LAN8841 PHY (incl. cable diagnostics and PTP)
      - Amlogic gxl MDIO mux

   - WiFi:
      - RealTek RTL8188EU (rtl8xxxu)
      - Qualcomm Wi-Fi 7 devices (ath12k)

   - CAN:
      - Renesas R-Car V4H

  Drivers:

   - Bluetooth:
      - Set Per Platform Antenna Gain (PPAG) for Intel controllers.

   - Ethernet NICs:
      - Intel (1G, igc):
         - support TSN / Qbv / packet scheduling features of i226 model
      - Intel (100G, ice):
         - use GNSS subsystem instead of TTY
         - multi-buffer XDP support
         - extend support for GPIO pins to E823 devices
      - nVidia/Mellanox:
         - update the shared buffer configuration on PFC commands
         - implement PTP adjphase function for HW offset control
         - TC support for Geneve and GRE with VF tunnel offload
         - more efficient crypto key management method
         - multi-port eswitch support
      - Netronome/Corigine:
         - add DCB IEEE support
         - support IPsec offloading for NFP3800
      - Freescale/NXP (enetc):
         - support XDP_REDIRECT for XDP non-linear buffers
         - improve reconfig, avoid link flap and waiting for idle
         - support MAC Merge layer
      - Other NICs:
         - sfc/ef100: add basic devlink support for ef100
         - ionic: rx_push mode operation (writing descriptors via MMIO)
         - bnxt: use the auxiliary bus abstraction for RDMA
         - r8169: disable ASPM and reset bus in case of tx timeout
         - cpsw: support QSGMII mode for J721e CPSW9G
         - cpts: support pulse-per-second output
         - ngbe: add an mdio bus driver
         - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing
         - r8152: handle devices with FW with NCM support
         - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation
         - virtio-net: support multi buffer XDP
         - virtio/vsock: replace virtio_vsock_pkt with sk_buff
         - tsnep: XDP support

   - Ethernet high-speed switches:
      - nVidia/Mellanox (mlxsw):
         - add support for latency TLV (in FW control messages)
      - Microchip (sparx5):
         - separate explicit and implicit traffic forwarding rules, make
           the implicit rules always active
         - add support for egress DSCP rewrite
         - IS0 VCAP support (Ingress Classification)
         - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS
           etc.)
         - ES2 VCAP support (Egress Access Control)
         - support for Per-Stream Filtering and Policing (802.1Q,
           8.6.5.1)

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - add MAB (port auth) offload support
         - enable PTP receive for mv88e6390
      - NXP (ocelot):
         - support MAC Merge layer
         - support for the the vsc7512 internal copper phys
      - Microchip:
         - lan9303: convert to PHYLINK
         - lan966x: support TC flower filter statistics
         - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x
         - lan937x: support Credit Based Shaper configuration
         - ksz9477: support Energy Efficient Ethernet
      - other:
         - qca8k: convert to regmap read/write API, use bulk operations
         - rswitch: Improve TX timestamp accuracy

   - Intel WiFi (iwlwifi):
      - EHT (Wi-Fi 7) rate reporting
      - STEP equalizer support: transfer some STEP (connection to radio
        on platforms with integrated wifi) related parameters from the
        BIOS to the firmware.

   - Qualcomm 802.11ax WiFi (ath11k):
      - IPQ5018 support
      - Fine Timing Measurement (FTM) responder role support
      - channel 177 support

   - MediaTek WiFi (mt76):
      - per-PHY LED support
      - mt7996: EHT (Wi-Fi 7) support
      - Wireless Ethernet Dispatch (WED) reset support
      - switch to using page pool allocator

   - RealTek WiFi (rtw89):
      - support new version of Bluetooth co-existance

   - Mobile:
      - rmnet: support TX aggregation"

* tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits)
  page_pool: add a comment explaining the fragment counter usage
  net: ethtool: fix __ethtool_dev_mm_supported() implementation
  ethtool: pse-pd: Fix double word in comments
  xsk: add linux/vmalloc.h to xsk.c
  sefltests: netdevsim: wait for devlink instance after netns removal
  selftest: fib_tests: Always cleanup before exit
  net/mlx5e: Align IPsec ASO result memory to be as required by hardware
  net/mlx5e: TC, Set CT miss to the specific ct action instance
  net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG
  net/mlx5: Refactor tc miss handling to a single function
  net/mlx5: Kconfig: Make tc offload depend on tc skb extension
  net/sched: flower: Support hardware miss to tc action
  net/sched: flower: Move filter handle initialization earlier
  net/sched: cls_api: Support hardware miss to tc action
  net/sched: Rename user cookie and act cookie
  sfc: fix builds without CONFIG_RTC_LIB
  sfc: clean up some inconsistent indentings
  net/mlx4_en: Introduce flexible array to silence overflow warning
  net: lan966x: Fix possible deadlock inside PTP
  net/ulp: Remove redundant ->clone() test in inet_clone_ulp().
  ...

1 files changed, 724 insertions, 0 deletions

diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.c b/drivers/gpu/drm/rcar-du/rcar_du_drv.c
new file mode 100644
index 000000000..d003e8d9e
--- /dev/null
+++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.c
@@ -0,0 +1,724 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * R-Car Display Unit DRM driver
+ *
+ * Copyright (C) 2013-2015 Renesas Electronics Corporation
+ *
+ * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
+ */
+
+#include <linux/clk.h>
+#include <linux/dma-mapping.h>
+#include <linux/io.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/pm.h>
+#include <linux/slab.h>
+#include <linux/wait.h>
+
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_drv.h>
+#include <drm/drm_fbdev_generic.h>
+#include <drm/drm_gem_dma_helper.h>
+#include <drm/drm_managed.h>
+#include <drm/drm_probe_helper.h>
+
+#include "rcar_du_drv.h"
+#include "rcar_du_kms.h"
+
+/* -----------------------------------------------------------------------------
+ * Device Information
+ */
+
+static const struct rcar_du_device_info rzg1_du_r8a7743_info = {
+	.gen = 2,
+	.features = RCAR_DU_FEATURE_CRTC_IRQ
+		  | RCAR_DU_FEATURE_CRTC_CLOCK
+		  | RCAR_DU_FEATURE_INTERLACED
+		  | RCAR_DU_FEATURE_TVM_SYNC,
+	.channels_mask = BIT(1) | BIT(0),
+	.routes = {
+		/*
+		 * R8A774[34] has one RGB output and one LVDS output
+		 */
+		[RCAR_DU_OUTPUT_DPAD0] = {
+			.possible_crtcs = BIT(1) | BIT(0),
+			.port = 0,
+		},
+		[RCAR_DU_OUTPUT_LVDS0] = {
+			.possible_crtcs = BIT(0),
+			.port = 1,
+		},
+	},
+	.num_lvds = 1,
+	.num_rpf = 4,
+};
+
+static const struct rcar_du_device_info rzg1_du_r8a7745_info = {
+	.gen = 2,
+	.features = RCAR_DU_FEATURE_CRTC_IRQ
+		  | RCAR_DU_FEATURE_CRTC_CLOCK
+		  | RCAR_DU_FEATURE_INTERLACED
+		  | RCAR_DU_FEATURE_TVM_SYNC,
+	.channels_mask = BIT(1) | BIT(0),
+	.routes = {
+		/*
+		 * R8A7745 has two RGB outputs
+		 */
+		[RCAR_DU_OUTPUT_DPAD0] = {
+			.possible_crtcs = BIT(0),
+			.port = 0,
+		},
+		[RCAR_DU_OUTPUT_DPAD1] = {
+			.possible_crtcs = BIT(1),
+			.port = 1,
+		},
+	},
+	.num_rpf = 4,
+};
+
+static const struct rcar_du_device_info rzg1_du_r8a77470_info = {
+	.gen = 2,
+	.features = RCAR_DU_FEATURE_CRTC_IRQ
+		  | RCAR_DU_FEATURE_CRTC_CLOCK
+		  | RCAR_DU_FEATURE_INTERLACED
+		  | RCAR_DU_FEATURE_TVM_SYNC,
+	.channels_mask = BIT(1) | BIT(0),
+	.routes = {
+		/*
+		 * R8A77470 has two RGB outputs, one LVDS output, and
+		 * one (currently unsupported) analog video output
+		 */
+		[RCAR_DU_OUTPUT_DPAD0] = {
+			.possible_crtcs = BIT(0),
+			.port = 0,
+		},
+		[RCAR_DU_OUTPUT_DPAD1] = {
+			.possible_crtcs = BIT(1),
+			.port = 1,
+		},
+		[RCAR_DU_OUTPUT_LVDS0] = {
+			.possible_crtcs = BIT(0) | BIT(1),
+			.port = 2,
+		},
+	},
+	.num_rpf = 4,
+};
+
+static const struct rcar_du_device_info rcar_du_r8a774a1_info = {
+	.gen = 3,
+	.features = RCAR_DU_FEATURE_CRTC_IRQ
+		  | RCAR_DU_FEATURE_CRTC_CLOCK
+		  | RCAR_DU_FEATURE_VSP1_SOURCE
+		  | RCAR_DU_FEATURE_INTERLACED
+		  | RCAR_DU_FEATURE_TVM_SYNC,
+	.channels_mask = BIT(2) | BIT(1) | BIT(0),
+	.routes = {
+		/*
+		 * R8A774A1 has one RGB output, one LVDS output and one HDMI
+		 * output.
+		 */
+		[RCAR_DU_OUTPUT_DPAD0] = {
+			.possible_crtcs = BIT(2),
+			.port = 0,
+		},
+		[RCAR_DU_OUTPUT_HDMI0] = {
+			.possible_crtcs = BIT(1),
+			.port = 1,
+		},
+		[RCAR_DU_OUTPUT_LVDS0] = {
+			.possible_crtcs = BIT(0),
+			.port = 2,
+		},
+	},
+	.num_lvds = 1,
+	.num_rpf = 5,
+	.dpll_mask =  BIT(1),
+};
+
+static const struct rcar_du_device_info rcar_du_r8a774b1_info = {
+	.gen = 3,
+	.features = RCAR_DU_FEATURE_CRTC_IRQ
+		  | RCAR_DU_FEATURE_CRTC_CLOCK
+		  | RCAR_DU_FEATURE_VSP1_SOURCE
+		  | RCAR_DU_FEATURE_INTERLACED
+		  | RCAR_DU_FEATURE_TVM_SYNC,
+	.channels_mask = BIT(3) | BIT(1) | BIT(0),
+	.routes = {
+		/*
+		 * R8A774B1 has one RGB output, one LVDS output and one HDMI
+		 * output.
+		 */
+		[RCAR_DU_OUTPUT_DPAD0] = {
+			.possible_crtcs = BIT(2),
+			.port = 0,
+		},
+		[RCAR_DU_OUTPUT_HDMI0] = {
+			.possible_crtcs = BIT(1),
+			.port = 1,
+		},
+		[RCAR_DU_OUTPUT_LVDS0] = {
+			.possible_crtcs = BIT(0),
+			.port = 2,
+		},
+	},
+	.num_lvds = 1,
+	.num_rpf = 5,
+	.dpll_mask =  BIT(1),
+};
+
+static const struct rcar_du_device_info rcar_du_r8a774c0_info = {
+	.gen = 3,
+	.features = RCAR_DU_FEATURE_CRTC_IRQ
+		  | RCAR_DU_FEATURE_CRTC_CLOCK
+		  | RCAR_DU_FEATURE_VSP1_SOURCE,
+	.channels_mask = BIT(1) | BIT(0),
+	.routes = {
+		/*
+		 * R8A774C0 has one RGB output and two LVDS outputs
+		 */
+		[RCAR_DU_OUTPUT_DPAD0] = {
+			.possible_crtcs = BIT(0) | BIT(1),
+			.port = 0,
+		},
+		[RCAR_DU_OUTPUT_LVDS0] = {
+			.possible_crtcs = BIT(0),
+			.port = 1,
+		},
+		[RCAR_DU_OUTPUT_LVDS1] = {
+			.possible_crtcs = BIT(1),
+			.port = 2,
+		},
+	},
+	.num_lvds = 2,
+	.num_rpf = 4,
+	.lvds_clk_mask =  BIT(1) | BIT(0),
+};
+
+static const struct rcar_du_device_info rcar_du_r8a774e1_info = {
+	.gen = 3,
+	.features = RCAR_DU_FEATURE_CRTC_IRQ
+		  | RCAR_DU_FEATURE_CRTC_CLOCK
+		  | RCAR_DU_FEATURE_VSP1_SOURCE
+		  | RCAR_DU_FEATURE_INTERLACED
+		  | RCAR_DU_FEATURE_TVM_SYNC,
+	.channels_mask = BIT(3) | BIT(1) | BIT(0),
+	.routes = {
+		/*
+		 * R8A774E1 has one RGB output, one LVDS output and one HDMI
+		 * output.
+		 */
+		[RCAR_DU_OUTPUT_DPAD0] = {
+			.possible_crtcs = BIT(2),
+			.port = 0,
+		},
+		[RCAR_DU_OUTPUT_HDMI0] = {
+			.possible_crtcs = BIT(1),
+			.port = 1,
+		},
+		[RCAR_DU_OUTPUT_LVDS0] = {
+			.possible_crtcs = BIT(0),
+			.port = 2,
+		},
+	},
+	.num_lvds = 1,
+	.num_rpf = 5,
+	.dpll_mask =  BIT(1),
+};
+
+static const struct rcar_du_device_info rcar_du_r8a7779_info = {
+	.gen = 1,
+	.features = RCAR_DU_FEATURE_INTERLACED
+		  | RCAR_DU_FEATURE_TVM_SYNC,
+	.channels_mask = BIT(1) | BIT(0),
+	.routes = {
+		/*
+		 * R8A7779 has two RGB outputs and one (currently unsupported)
+		 * TCON output.
+		 */
+		[RCAR_DU_OUTPUT_DPAD0] = {
+			.possible_crtcs = BIT(0),
+			.port = 0,
+		},
+		[RCAR_DU_OUTPUT_DPAD1] = {
+			.possible_crtcs = BIT(1) | BIT(0),
+			.port = 1,
+		},
+	},
+};
+
+static const struct rcar_du_device_info rcar_du_r8a7790_info = {
+	.gen = 2,
+	.features = RCAR_DU_FEATURE_CRTC_IRQ
+		  | RCAR_DU_FEATURE_CRTC_CLOCK
+		  | RCAR_DU_FEATURE_INTERLACED
+		  | RCAR_DU_FEATURE_TVM_SYNC,
+	.quirks = RCAR_DU_QUIRK_ALIGN_128B,
+	.channels_mask = BIT(2) | BIT(1) | BIT(0),
+	.routes = {
+		/*
+		 * R8A7742 and R8A7790 each have one RGB output and two LVDS
+		 * outputs. Additionally R8A7790 supports one TCON output
+		 * (currently unsupported by the driver).
+		 */
+		[RCAR_DU_OUTPUT_DPAD0] = {
+			.possible_crtcs = BIT(2) | BIT(1) | BIT(0),
+			.port = 0,
+		},
+		[RCAR_DU_OUTPUT_LVDS0] = {
+			.possible_crtcs = BIT(0),
+			.port = 1,
+		},
+		[RCAR_DU_OUTPUT_LVDS1] = {
+			.possible_crtcs = BIT(2) | BIT(1),
+			.port = 2,
+		},
+	},
+	.num_lvds = 2,
+	.num_rpf = 4,
+};
+
+/* M2-W (r8a7791) and M2-N (r8a7793) are identical */
+static const struct rcar_du_device_info rcar_du_r8a7791_info = {
+	.gen = 2,
+	.features = RCAR_DU_FEATURE_CRTC_IRQ
+		  | RCAR_DU_FEATURE_CRTC_CLOCK
+		  | RCAR_DU_FEATURE_INTERLACED
+		  | RCAR_DU_FEATURE_TVM_SYNC,
+	.channels_mask = BIT(1) | BIT(0),
+	.routes = {
+		/*
+		 * R8A779[13] has one RGB output, one LVDS output and one
+		 * (currently unsupported) TCON output.
+		 */
+		[RCAR_DU_OUTPUT_DPAD0] = {
+			.possible_crtcs = BIT(1) | BIT(0),
+			.port = 0,
+		},
+		[RCAR_DU_OUTPUT_LVDS0] = {
+			.possible_crtcs = BIT(0),
+			.port = 1,
+		},
+	},
+	.num_lvds = 1,
+	.num_rpf = 4,
+};
+
+static const struct rcar_du_device_info rcar_du_r8a7792_info = {
+	.gen = 2,
+	.features = RCAR_DU_FEATURE_CRTC_IRQ
+		  | RCAR_DU_FEATURE_CRTC_CLOCK
+		  | RCAR_DU_FEATURE_INTERLACED
+		  | RCAR_DU_FEATURE_TVM_SYNC,
+	.channels_mask = BIT(1) | BIT(0),
+	.routes = {
+		/* R8A7792 has two RGB outputs. */
+		[RCAR_DU_OUTPUT_DPAD0] = {
+			.possible_crtcs = BIT(0),
+			.port = 0,
+		},
+		[RCAR_DU_OUTPUT_DPAD1] = {
+			.possible_crtcs = BIT(1),
+			.port = 1,
+		},
+	},
+	.num_rpf = 4,
+};
+
+static const struct rcar_du_device_info rcar_du_r8a7794_info = {
+	.gen = 2,
+	.features = RCAR_DU_FEATURE_CRTC_IRQ
+		  | RCAR_DU_FEATURE_CRTC_CLOCK
+		  | RCAR_DU_FEATURE_INTERLACED
+		  | RCAR_DU_FEATURE_TVM_SYNC,
+	.channels_mask = BIT(1) | BIT(0),
+	.routes = {
+		/*
+		 * R8A7794 has two RGB outputs and one (currently unsupported)
+		 * TCON output.
+		 */
+		[RCAR_DU_OUTPUT_DPAD0] = {
+			.possible_crtcs = BIT(0),
+			.port = 0,
+		},
+		[RCAR_DU_OUTPUT_DPAD1] = {
+			.possible_crtcs = BIT(1),
+			.port = 1,
+		},
+	},
+	.num_rpf = 4,
+};
+
+static const struct rcar_du_device_info rcar_du_r8a7795_info = {
+	.gen = 3,
+	.features = RCAR_DU_FEATURE_CRTC_IRQ
+		  | RCAR_DU_FEATURE_CRTC_CLOCK
+		  | RCAR_DU_FEATURE_VSP1_SOURCE
+		  | RCAR_DU_FEATURE_INTERLACED
+		  | RCAR_DU_FEATURE_TVM_SYNC,
+	.channels_mask = BIT(3) | BIT(2) | BIT(1) | BIT(0),
+	.routes = {
+		/*
+		 * R8A7795 has one RGB output, two HDMI outputs and one
+		 * LVDS output.
+		 */
+		[RCAR_DU_OUTPUT_DPAD0] = {
+			.possible_crtcs = BIT(3),
+			.port = 0,
+		},
+		[RCAR_DU_OUTPUT_HDMI0] = {
+			.possible_crtcs = BIT(1),
+			.port = 1,
+		},
+		[RCAR_DU_OUTPUT_HDMI1] = {
+			.possible_crtcs = BIT(2),
+			.port = 2,
+		},
+		[RCAR_DU_OUTPUT_LVDS0] = {
+			.possible_crtcs = BIT(0),
+			.port = 3,
+		},
+	},
+	.num_lvds = 1,
+	.num_rpf = 5,
+	.dpll_mask =  BIT(2) | BIT(1),
+};
+
+static const struct rcar_du_device_info rcar_du_r8a7796_info = {
+	.gen = 3,
+	.features = RCAR_DU_FEATURE_CRTC_IRQ
+		  | RCAR_DU_FEATURE_CRTC_CLOCK
+		  | RCAR_DU_FEATURE_VSP1_SOURCE
+		  | RCAR_DU_FEATURE_INTERLACED
+		  | RCAR_DU_FEATURE_TVM_SYNC,
+	.channels_mask = BIT(2) | BIT(1) | BIT(0),
+	.routes = {
+		/*
+		 * R8A7796 has one RGB output, one LVDS output and one HDMI
+		 * output.
+		 */
+		[RCAR_DU_OUTPUT_DPAD0] = {
+			.possible_crtcs = BIT(2),
+			.port = 0,
+		},
+		[RCAR_DU_OUTPUT_HDMI0] = {
+			.possible_crtcs = BIT(1),
+			.port = 1,
+		},
+		[RCAR_DU_OUTPUT_LVDS0] = {
+			.possible_crtcs = BIT(0),
+			.port = 2,
+		},
+	},
+	.num_lvds = 1,
+	.num_rpf = 5,
+	.dpll_mask =  BIT(1),
+};
+
+static const struct rcar_du_device_info rcar_du_r8a77965_info = {
+	.gen = 3,
+	.features = RCAR_DU_FEATURE_CRTC_IRQ
+		  | RCAR_DU_FEATURE_CRTC_CLOCK
+		  | RCAR_DU_FEATURE_VSP1_SOURCE
+		  | RCAR_DU_FEATURE_INTERLACED
+		  | RCAR_DU_FEATURE_TVM_SYNC,
+	.channels_mask = BIT(3) | BIT(1) | BIT(0),
+	.routes = {
+		/*
+		 * R8A77965 has one RGB output, one LVDS output and one HDMI
+		 * output.
+		 */
+		[RCAR_DU_OUTPUT_DPAD0] = {
+			.possible_crtcs = BIT(2),
+			.port = 0,
+		},
+		[RCAR_DU_OUTPUT_HDMI0] = {
+			.possible_crtcs = BIT(1),
+			.port = 1,
+		},
+		[RCAR_DU_OUTPUT_LVDS0] = {
+			.possible_crtcs = BIT(0),
+			.port = 2,
+		},
+	},
+	.num_lvds = 1,
+	.num_rpf = 5,
+	.dpll_mask =  BIT(1),
+};
+
+static const struct rcar_du_device_info rcar_du_r8a77970_info = {
+	.gen = 3,
+	.features = RCAR_DU_FEATURE_CRTC_IRQ
+		  | RCAR_DU_FEATURE_CRTC_CLOCK
+		  | RCAR_DU_FEATURE_VSP1_SOURCE
+		  | RCAR_DU_FEATURE_INTERLACED
+		  | RCAR_DU_FEATURE_TVM_SYNC,
+	.channels_mask = BIT(0),
+	.routes = {
+		/*
+		 * R8A77970 and R8A77980 have one RGB output and one LVDS
+		 * output.
+		 */
+		[RCAR_DU_OUTPUT_DPAD0] = {
+			.possible_crtcs = BIT(0),
+			.port = 0,
+		},
+		[RCAR_DU_OUTPUT_LVDS0] = {
+			.possible_crtcs = BIT(0),
+			.port = 1,
+		},
+	},
+	.num_lvds = 1,
+	.num_rpf = 5,
+};
+
+static const struct rcar_du_device_info rcar_du_r8a7799x_info = {
+	.gen = 3,
+	.features = RCAR_DU_FEATURE_CRTC_IRQ
+		  | RCAR_DU_FEATURE_CRTC_CLOCK
+		  | RCAR_DU_FEATURE_VSP1_SOURCE,
+	.channels_mask = BIT(1) | BIT(0),
+	.routes = {
+		/*
+		 * R8A77990 and R8A77995 have one RGB output and two LVDS
+		 * outputs.
+		 */
+		[RCAR_DU_OUTPUT_DPAD0] = {
+			.possible_crtcs = BIT(0) | BIT(1),
+			.port = 0,
+		},
+		[RCAR_DU_OUTPUT_LVDS0] = {
+			.possible_crtcs = BIT(0),
+			.port = 1,
+		},
+		[RCAR_DU_OUTPUT_LVDS1] = {
+			.possible_crtcs = BIT(1),
+			.port = 2,
+		},
+	},
+	.num_lvds = 2,
+	.num_rpf = 5,
+	.lvds_clk_mask =  BIT(1) | BIT(0),
+};
+
+static const struct rcar_du_device_info rcar_du_r8a779a0_info = {
+	.gen = 3,
+	.features = RCAR_DU_FEATURE_CRTC_IRQ
+		  | RCAR_DU_FEATURE_VSP1_SOURCE
+		  | RCAR_DU_FEATURE_NO_BLENDING,
+	.channels_mask = BIT(1) | BIT(0),
+	.routes = {
+		/* R8A779A0 has two MIPI DSI outputs. */
+		[RCAR_DU_OUTPUT_DSI0] = {
+			.possible_crtcs = BIT(0),
+			.port = 0,
+		},
+		[RCAR_DU_OUTPUT_DSI1] = {
+			.possible_crtcs = BIT(1),
+			.port = 1,
+		},
+	},
+	.num_rpf = 5,
+	.dsi_clk_mask =  BIT(1) | BIT(0),
+};
+
+static const struct of_device_id rcar_du_of_table[] = {
+	{ .compatible = "renesas,du-r8a7742", .data = &rcar_du_r8a7790_info },
+	{ .compatible = "renesas,du-r8a7743", .data = &rzg1_du_r8a7743_info },
+	{ .compatible = "renesas,du-r8a7744", .data = &rzg1_du_r8a7743_info },
+	{ .compatible = "renesas,du-r8a7745", .data = &rzg1_du_r8a7745_info },
+	{ .compatible = "renesas,du-r8a77470", .data = &rzg1_du_r8a77470_info },
+	{ .compatible = "renesas,du-r8a774a1", .data = &rcar_du_r8a774a1_info },
+	{ .compatible = "renesas,du-r8a774b1", .data = &rcar_du_r8a774b1_info },
+	{ .compatible = "renesas,du-r8a774c0", .data = &rcar_du_r8a774c0_info },
+	{ .compatible = "renesas,du-r8a774e1", .data = &rcar_du_r8a774e1_info },
+	{ .compatible = "renesas,du-r8a7779", .data = &rcar_du_r8a7779_info },
+	{ .compatible = "renesas,du-r8a7790", .data = &rcar_du_r8a7790_info },
+	{ .compatible = "renesas,du-r8a7791", .data = &rcar_du_r8a7791_info },
+	{ .compatible = "renesas,du-r8a7792", .data = &rcar_du_r8a7792_info },
+	{ .compatible = "renesas,du-r8a7793", .data = &rcar_du_r8a7791_info },
+	{ .compatible = "renesas,du-r8a7794", .data = &rcar_du_r8a7794_info },
+	{ .compatible = "renesas,du-r8a7795", .data = &rcar_du_r8a7795_info },
+	{ .compatible = "renesas,du-r8a7796", .data = &rcar_du_r8a7796_info },
+	{ .compatible = "renesas,du-r8a77961", .data = &rcar_du_r8a7796_info },
+	{ .compatible = "renesas,du-r8a77965", .data = &rcar_du_r8a77965_info },
+	{ .compatible = "renesas,du-r8a77970", .data = &rcar_du_r8a77970_info },
+	{ .compatible = "renesas,du-r8a77980", .data = &rcar_du_r8a77970_info },
+	{ .compatible = "renesas,du-r8a77990", .data = &rcar_du_r8a7799x_info },
+	{ .compatible = "renesas,du-r8a77995", .data = &rcar_du_r8a7799x_info },
+	{ .compatible = "renesas,du-r8a779a0", .data = &rcar_du_r8a779a0_info },
+	{ }
+};
+
+MODULE_DEVICE_TABLE(of, rcar_du_of_table);
+
+const char *rcar_du_output_name(enum rcar_du_output output)
+{
+	static const char * const names[] = {
+		[RCAR_DU_OUTPUT_DPAD0] = "DPAD0",
+		[RCAR_DU_OUTPUT_DPAD1] = "DPAD1",
+		[RCAR_DU_OUTPUT_DSI0] = "DSI0",
+		[RCAR_DU_OUTPUT_DSI1] = "DSI1",
+		[RCAR_DU_OUTPUT_HDMI0] = "HDMI0",
+		[RCAR_DU_OUTPUT_HDMI1] = "HDMI1",
+		[RCAR_DU_OUTPUT_LVDS0] = "LVDS0",
+		[RCAR_DU_OUTPUT_LVDS1] = "LVDS1",
+		[RCAR_DU_OUTPUT_TCON] = "TCON",
+	};
+
+	if (output >= ARRAY_SIZE(names) || !names[output])
+		return "UNKNOWN";
+
+	return names[output];
+}
+
+/* -----------------------------------------------------------------------------
+ * DRM operations
+ */
+
+DEFINE_DRM_GEM_DMA_FOPS(rcar_du_fops);
+
+static const struct drm_driver rcar_du_driver = {
+	.driver_features	= DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
+	.dumb_create		= rcar_du_dumb_create,
+	.prime_handle_to_fd	= drm_gem_prime_handle_to_fd,
+	.prime_fd_to_handle	= drm_gem_prime_fd_to_handle,
+	.gem_prime_import_sg_table = rcar_du_gem_prime_import_sg_table,
+	.gem_prime_mmap		= drm_gem_prime_mmap,
+	.fops			= &rcar_du_fops,
+	.name			= "rcar-du",
+	.desc			= "Renesas R-Car Display Unit",
+	.date			= "20130110",
+	.major			= 1,
+	.minor			= 0,
+};
+
+/* -----------------------------------------------------------------------------
+ * Power management
+ */
+
+#ifdef CONFIG_PM_SLEEP
+static int rcar_du_pm_suspend(struct device *dev)
+{
+	struct rcar_du_device *rcdu = dev_get_drvdata(dev);
+
+	return drm_mode_config_helper_suspend(&rcdu->ddev);
+}
+
+static int rcar_du_pm_resume(struct device *dev)
+{
+	struct rcar_du_device *rcdu = dev_get_drvdata(dev);
+
+	return drm_mode_config_helper_resume(&rcdu->ddev);
+}
+#endif
+
+static const struct dev_pm_ops rcar_du_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(rcar_du_pm_suspend, rcar_du_pm_resume)
+};
+
+/* -----------------------------------------------------------------------------
+ * Platform driver
+ */
+
+static int rcar_du_remove(struct platform_device *pdev)
+{
+	struct rcar_du_device *rcdu = platform_get_drvdata(pdev);
+	struct drm_device *ddev = &rcdu->ddev;
+
+	drm_dev_unregister(ddev);
+	drm_atomic_helper_shutdown(ddev);
+
+	drm_kms_helper_poll_fini(ddev);
+
+	return 0;
+}
+
+static void rcar_du_shutdown(struct platform_device *pdev)
+{
+	struct rcar_du_device *rcdu = platform_get_drvdata(pdev);
+
+	drm_atomic_helper_shutdown(&rcdu->ddev);
+}
+
+static int rcar_du_probe(struct platform_device *pdev)
+{
+	struct rcar_du_device *rcdu;
+	unsigned int mask;
+	int ret;
+
+	if (drm_firmware_drivers_only())
+		return -ENODEV;
+
+	/* Allocate and initialize the R-Car device structure. */
+	rcdu = devm_drm_dev_alloc(&pdev->dev, &rcar_du_driver,
+				  struct rcar_du_device, ddev);
+	if (IS_ERR(rcdu))
+		return PTR_ERR(rcdu);
+
+	rcdu->dev = &pdev->dev;
+	rcdu->info = of_device_get_match_data(rcdu->dev);
+
+	platform_set_drvdata(pdev, rcdu);
+
+	/* I/O resources */
+	rcdu->mmio = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(rcdu->mmio))
+		return PTR_ERR(rcdu->mmio);
+
+	/*
+	 * Set the DMA coherent mask to reflect the DU 32-bit DMA address space
+	 * limitations. When sourcing frames from a VSP the DU doesn't perform
+	 * any memory access so set the mask to 40 bits to accept all buffers.
+	 */
+	mask = rcar_du_has(rcdu, RCAR_DU_FEATURE_VSP1_SOURCE) ? 40 : 32;
+	ret = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(mask));
+	if (ret)
+		return ret;
+
+	/* DRM/KMS objects */
+	ret = rcar_du_modeset_init(rcdu);
+	if (ret < 0) {
+		if (ret != -EPROBE_DEFER)
+			dev_err(&pdev->dev,
+				"failed to initialize DRM/KMS (%d)\n", ret);
+		goto error;
+	}
+
+	/*
+	 * Register the DRM device with the core and the connectors with
+	 * sysfs.
+	 */
+	ret = drm_dev_register(&rcdu->ddev, 0);
+	if (ret)
+		goto error;
+
+	DRM_INFO("Device %s probed\n", dev_name(&pdev->dev));
+
+	drm_fbdev_generic_setup(&rcdu->ddev, 32);
+
+	return 0;
+
+error:
+	drm_kms_helper_poll_fini(&rcdu->ddev);
+	return ret;
+}
+
+static struct platform_driver rcar_du_platform_driver = {
+	.probe		= rcar_du_probe,
+	.remove		= rcar_du_remove,
+	.shutdown	= rcar_du_shutdown,
+	.driver		= {
+		.name	= "rcar-du",
+		.pm	= &rcar_du_pm_ops,
+		.of_match_table = rcar_du_of_table,
+	},
+};
+
+module_platform_driver(rcar_du_platform_driver);
+
+MODULE_AUTHOR("Laurent Pinchart <laurent.pinchart@ideasonboard.com>");
+MODULE_DESCRIPTION("Renesas R-Car Display Unit DRM Driver");
+MODULE_LICENSE("GPL");