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, 504 insertions, 0 deletions

diff --git a/drivers/gpu/drm/panel/panel-newvision-nv3051d.c b/drivers/gpu/drm/panel/panel-newvision-nv3051d.c
new file mode 100644
index 000000000..a07958038
--- /dev/null
+++ b/drivers/gpu/drm/panel/panel-newvision-nv3051d.c
@@ -0,0 +1,504 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * NV3051D MIPI-DSI panel driver for Anbernic RG353x
+ * Copyright (C) 2022 Chris Morgan
+ *
+ * based on
+ *
+ * Elida kd35t133 3.5" MIPI-DSI panel driver
+ * Copyright (C) Theobroma Systems 2020
+ */
+
+#include <linux/delay.h>
+#include <linux/gpio/consumer.h>
+#include <linux/media-bus-format.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/regulator/consumer.h>
+
+#include <video/display_timing.h>
+#include <video/mipi_display.h>
+
+#include <drm/drm_mipi_dsi.h>
+#include <drm/drm_modes.h>
+#include <drm/drm_panel.h>
+
+struct nv3051d_panel_info {
+	const struct drm_display_mode *display_modes;
+	unsigned int num_modes;
+	u16 width_mm, height_mm;
+	u32 bus_flags;
+};
+
+struct panel_nv3051d {
+	struct device *dev;
+	struct drm_panel panel;
+	struct gpio_desc *reset_gpio;
+	const struct nv3051d_panel_info *panel_info;
+	struct regulator *vdd;
+};
+
+static inline struct panel_nv3051d *panel_to_panelnv3051d(struct drm_panel *panel)
+{
+	return container_of(panel, struct panel_nv3051d, panel);
+}
+
+static int panel_nv3051d_init_sequence(struct panel_nv3051d *ctx)
+{
+	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
+
+	/*
+	 * Init sequence was supplied by device vendor with no
+	 * documentation.
+	 */
+
+	mipi_dsi_dcs_write_seq(dsi, 0xFF, 0x30);
+	mipi_dsi_dcs_write_seq(dsi, 0xFF, 0x52);
+	mipi_dsi_dcs_write_seq(dsi, 0xFF, 0x01);
+	mipi_dsi_dcs_write_seq(dsi, 0xE3, 0x00);
+	mipi_dsi_dcs_write_seq(dsi, 0x03, 0x40);
+	mipi_dsi_dcs_write_seq(dsi, 0x04, 0x00);
+	mipi_dsi_dcs_write_seq(dsi, 0x05, 0x03);
+	mipi_dsi_dcs_write_seq(dsi, 0x24, 0x12);
+	mipi_dsi_dcs_write_seq(dsi, 0x25, 0x1E);
+	mipi_dsi_dcs_write_seq(dsi, 0x26, 0x28);
+	mipi_dsi_dcs_write_seq(dsi, 0x27, 0x52);
+	mipi_dsi_dcs_write_seq(dsi, 0x28, 0x57);
+	mipi_dsi_dcs_write_seq(dsi, 0x29, 0x01);
+	mipi_dsi_dcs_write_seq(dsi, 0x2A, 0xDF);
+	mipi_dsi_dcs_write_seq(dsi, 0x38, 0x9C);
+	mipi_dsi_dcs_write_seq(dsi, 0x39, 0xA7);
+	mipi_dsi_dcs_write_seq(dsi, 0x3A, 0x53);
+	mipi_dsi_dcs_write_seq(dsi, 0x44, 0x00);
+	mipi_dsi_dcs_write_seq(dsi, 0x49, 0x3C);
+	mipi_dsi_dcs_write_seq(dsi, 0x59, 0xFE);
+	mipi_dsi_dcs_write_seq(dsi, 0x5C, 0x00);
+	mipi_dsi_dcs_write_seq(dsi, 0x91, 0x77);
+	mipi_dsi_dcs_write_seq(dsi, 0x92, 0x77);
+	mipi_dsi_dcs_write_seq(dsi, 0xA0, 0x55);
+	mipi_dsi_dcs_write_seq(dsi, 0xA1, 0x50);
+	mipi_dsi_dcs_write_seq(dsi, 0xA4, 0x9C);
+	mipi_dsi_dcs_write_seq(dsi, 0xA7, 0x02);
+	mipi_dsi_dcs_write_seq(dsi, 0xA8, 0x01);
+	mipi_dsi_dcs_write_seq(dsi, 0xA9, 0x01);
+	mipi_dsi_dcs_write_seq(dsi, 0xAA, 0xFC);
+	mipi_dsi_dcs_write_seq(dsi, 0xAB, 0x28);
+	mipi_dsi_dcs_write_seq(dsi, 0xAC, 0x06);
+	mipi_dsi_dcs_write_seq(dsi, 0xAD, 0x06);
+	mipi_dsi_dcs_write_seq(dsi, 0xAE, 0x06);
+	mipi_dsi_dcs_write_seq(dsi, 0xAF, 0x03);
+	mipi_dsi_dcs_write_seq(dsi, 0xB0, 0x08);
+	mipi_dsi_dcs_write_seq(dsi, 0xB1, 0x26);
+	mipi_dsi_dcs_write_seq(dsi, 0xB2, 0x28);
+	mipi_dsi_dcs_write_seq(dsi, 0xB3, 0x28);
+	mipi_dsi_dcs_write_seq(dsi, 0xB4, 0x33);
+	mipi_dsi_dcs_write_seq(dsi, 0xB5, 0x08);
+	mipi_dsi_dcs_write_seq(dsi, 0xB6, 0x26);
+	mipi_dsi_dcs_write_seq(dsi, 0xB7, 0x08);
+	mipi_dsi_dcs_write_seq(dsi, 0xB8, 0x26);
+	mipi_dsi_dcs_write_seq(dsi, 0xFF, 0x30);
+	mipi_dsi_dcs_write_seq(dsi, 0xFF, 0x52);
+	mipi_dsi_dcs_write_seq(dsi, 0xFF, 0x02);
+	mipi_dsi_dcs_write_seq(dsi, 0xB1, 0x0E);
+	mipi_dsi_dcs_write_seq(dsi, 0xD1, 0x0E);
+	mipi_dsi_dcs_write_seq(dsi, 0xB4, 0x29);
+	mipi_dsi_dcs_write_seq(dsi, 0xD4, 0x2B);
+	mipi_dsi_dcs_write_seq(dsi, 0xB2, 0x0C);
+	mipi_dsi_dcs_write_seq(dsi, 0xD2, 0x0A);
+	mipi_dsi_dcs_write_seq(dsi, 0xB3, 0x28);
+	mipi_dsi_dcs_write_seq(dsi, 0xD3, 0x28);
+	mipi_dsi_dcs_write_seq(dsi, 0xB6, 0x11);
+	mipi_dsi_dcs_write_seq(dsi, 0xD6, 0x0D);
+	mipi_dsi_dcs_write_seq(dsi, 0xB7, 0x32);
+	mipi_dsi_dcs_write_seq(dsi, 0xD7, 0x30);
+	mipi_dsi_dcs_write_seq(dsi, 0xC1, 0x04);
+	mipi_dsi_dcs_write_seq(dsi, 0xE1, 0x06);
+	mipi_dsi_dcs_write_seq(dsi, 0xB8, 0x0A);
+	mipi_dsi_dcs_write_seq(dsi, 0xD8, 0x0A);
+	mipi_dsi_dcs_write_seq(dsi, 0xB9, 0x01);
+	mipi_dsi_dcs_write_seq(dsi, 0xD9, 0x01);
+	mipi_dsi_dcs_write_seq(dsi, 0xBD, 0x13);
+	mipi_dsi_dcs_write_seq(dsi, 0xDD, 0x13);
+	mipi_dsi_dcs_write_seq(dsi, 0xBC, 0x11);
+	mipi_dsi_dcs_write_seq(dsi, 0xDC, 0x11);
+	mipi_dsi_dcs_write_seq(dsi, 0xBB, 0x0F);
+	mipi_dsi_dcs_write_seq(dsi, 0xDB, 0x0F);
+	mipi_dsi_dcs_write_seq(dsi, 0xBA, 0x0F);
+	mipi_dsi_dcs_write_seq(dsi, 0xDA, 0x0F);
+	mipi_dsi_dcs_write_seq(dsi, 0xBE, 0x18);
+	mipi_dsi_dcs_write_seq(dsi, 0xDE, 0x18);
+	mipi_dsi_dcs_write_seq(dsi, 0xBF, 0x0F);
+	mipi_dsi_dcs_write_seq(dsi, 0xDF, 0x0F);
+	mipi_dsi_dcs_write_seq(dsi, 0xC0, 0x17);
+	mipi_dsi_dcs_write_seq(dsi, 0xE0, 0x17);
+	mipi_dsi_dcs_write_seq(dsi, 0xB5, 0x3B);
+	mipi_dsi_dcs_write_seq(dsi, 0xD5, 0x3C);
+	mipi_dsi_dcs_write_seq(dsi, 0xB0, 0x0B);
+	mipi_dsi_dcs_write_seq(dsi, 0xD0, 0x0C);
+	mipi_dsi_dcs_write_seq(dsi, 0xFF, 0x30);
+	mipi_dsi_dcs_write_seq(dsi, 0xFF, 0x52);
+	mipi_dsi_dcs_write_seq(dsi, 0xFF, 0x03);
+	mipi_dsi_dcs_write_seq(dsi, 0x00, 0x2A);
+	mipi_dsi_dcs_write_seq(dsi, 0x01, 0x2A);
+	mipi_dsi_dcs_write_seq(dsi, 0x02, 0x2A);
+	mipi_dsi_dcs_write_seq(dsi, 0x03, 0x2A);
+	mipi_dsi_dcs_write_seq(dsi, 0x04, 0x61);
+	mipi_dsi_dcs_write_seq(dsi, 0x05, 0x80);
+	mipi_dsi_dcs_write_seq(dsi, 0x06, 0xC7);
+	mipi_dsi_dcs_write_seq(dsi, 0x07, 0x01);
+	mipi_dsi_dcs_write_seq(dsi, 0x08, 0x82);
+	mipi_dsi_dcs_write_seq(dsi, 0x09, 0x83);
+	mipi_dsi_dcs_write_seq(dsi, 0x30, 0x2A);
+	mipi_dsi_dcs_write_seq(dsi, 0x31, 0x2A);
+	mipi_dsi_dcs_write_seq(dsi, 0x32, 0x2A);
+	mipi_dsi_dcs_write_seq(dsi, 0x33, 0x2A);
+	mipi_dsi_dcs_write_seq(dsi, 0x34, 0x61);
+	mipi_dsi_dcs_write_seq(dsi, 0x35, 0xC5);
+	mipi_dsi_dcs_write_seq(dsi, 0x36, 0x80);
+	mipi_dsi_dcs_write_seq(dsi, 0x37, 0x23);
+	mipi_dsi_dcs_write_seq(dsi, 0x40, 0x82);
+	mipi_dsi_dcs_write_seq(dsi, 0x41, 0x83);
+	mipi_dsi_dcs_write_seq(dsi, 0x42, 0x80);
+	mipi_dsi_dcs_write_seq(dsi, 0x43, 0x81);
+	mipi_dsi_dcs_write_seq(dsi, 0x44, 0x11);
+	mipi_dsi_dcs_write_seq(dsi, 0x45, 0xF2);
+	mipi_dsi_dcs_write_seq(dsi, 0x46, 0xF1);
+	mipi_dsi_dcs_write_seq(dsi, 0x47, 0x11);
+	mipi_dsi_dcs_write_seq(dsi, 0x48, 0xF4);
+	mipi_dsi_dcs_write_seq(dsi, 0x49, 0xF3);
+	mipi_dsi_dcs_write_seq(dsi, 0x50, 0x02);
+	mipi_dsi_dcs_write_seq(dsi, 0x51, 0x01);
+	mipi_dsi_dcs_write_seq(dsi, 0x52, 0x04);
+	mipi_dsi_dcs_write_seq(dsi, 0x53, 0x03);
+	mipi_dsi_dcs_write_seq(dsi, 0x54, 0x11);
+	mipi_dsi_dcs_write_seq(dsi, 0x55, 0xF6);
+	mipi_dsi_dcs_write_seq(dsi, 0x56, 0xF5);
+	mipi_dsi_dcs_write_seq(dsi, 0x57, 0x11);
+	mipi_dsi_dcs_write_seq(dsi, 0x58, 0xF8);
+	mipi_dsi_dcs_write_seq(dsi, 0x59, 0xF7);
+	mipi_dsi_dcs_write_seq(dsi, 0x7E, 0x02);
+	mipi_dsi_dcs_write_seq(dsi, 0x7F, 0x80);
+	mipi_dsi_dcs_write_seq(dsi, 0xE0, 0x5A);
+	mipi_dsi_dcs_write_seq(dsi, 0xB1, 0x00);
+	mipi_dsi_dcs_write_seq(dsi, 0xB4, 0x0E);
+	mipi_dsi_dcs_write_seq(dsi, 0xB5, 0x0F);
+	mipi_dsi_dcs_write_seq(dsi, 0xB6, 0x04);
+	mipi_dsi_dcs_write_seq(dsi, 0xB7, 0x07);
+	mipi_dsi_dcs_write_seq(dsi, 0xB8, 0x06);
+	mipi_dsi_dcs_write_seq(dsi, 0xB9, 0x05);
+	mipi_dsi_dcs_write_seq(dsi, 0xBA, 0x0F);
+	mipi_dsi_dcs_write_seq(dsi, 0xC7, 0x00);
+	mipi_dsi_dcs_write_seq(dsi, 0xCA, 0x0E);
+	mipi_dsi_dcs_write_seq(dsi, 0xCB, 0x0F);
+	mipi_dsi_dcs_write_seq(dsi, 0xCC, 0x04);
+	mipi_dsi_dcs_write_seq(dsi, 0xCD, 0x07);
+	mipi_dsi_dcs_write_seq(dsi, 0xCE, 0x06);
+	mipi_dsi_dcs_write_seq(dsi, 0xCF, 0x05);
+	mipi_dsi_dcs_write_seq(dsi, 0xD0, 0x0F);
+	mipi_dsi_dcs_write_seq(dsi, 0x81, 0x0F);
+	mipi_dsi_dcs_write_seq(dsi, 0x84, 0x0E);
+	mipi_dsi_dcs_write_seq(dsi, 0x85, 0x0F);
+	mipi_dsi_dcs_write_seq(dsi, 0x86, 0x07);
+	mipi_dsi_dcs_write_seq(dsi, 0x87, 0x04);
+	mipi_dsi_dcs_write_seq(dsi, 0x88, 0x05);
+	mipi_dsi_dcs_write_seq(dsi, 0x89, 0x06);
+	mipi_dsi_dcs_write_seq(dsi, 0x8A, 0x00);
+	mipi_dsi_dcs_write_seq(dsi, 0x97, 0x0F);
+	mipi_dsi_dcs_write_seq(dsi, 0x9A, 0x0E);
+	mipi_dsi_dcs_write_seq(dsi, 0x9B, 0x0F);
+	mipi_dsi_dcs_write_seq(dsi, 0x9C, 0x07);
+	mipi_dsi_dcs_write_seq(dsi, 0x9D, 0x04);
+	mipi_dsi_dcs_write_seq(dsi, 0x9E, 0x05);
+	mipi_dsi_dcs_write_seq(dsi, 0x9F, 0x06);
+	mipi_dsi_dcs_write_seq(dsi, 0xA0, 0x00);
+	mipi_dsi_dcs_write_seq(dsi, 0xFF, 0x30);
+	mipi_dsi_dcs_write_seq(dsi, 0xFF, 0x52);
+	mipi_dsi_dcs_write_seq(dsi, 0xFF, 0x02);
+	mipi_dsi_dcs_write_seq(dsi, 0x01, 0x01);
+	mipi_dsi_dcs_write_seq(dsi, 0x02, 0xDA);
+	mipi_dsi_dcs_write_seq(dsi, 0x03, 0xBA);
+	mipi_dsi_dcs_write_seq(dsi, 0x04, 0xA8);
+	mipi_dsi_dcs_write_seq(dsi, 0x05, 0x9A);
+	mipi_dsi_dcs_write_seq(dsi, 0x06, 0x70);
+	mipi_dsi_dcs_write_seq(dsi, 0x07, 0xFF);
+	mipi_dsi_dcs_write_seq(dsi, 0x08, 0x91);
+	mipi_dsi_dcs_write_seq(dsi, 0x09, 0x90);
+	mipi_dsi_dcs_write_seq(dsi, 0x0A, 0xFF);
+	mipi_dsi_dcs_write_seq(dsi, 0x0B, 0x8F);
+	mipi_dsi_dcs_write_seq(dsi, 0x0C, 0x60);
+	mipi_dsi_dcs_write_seq(dsi, 0x0D, 0x58);
+	mipi_dsi_dcs_write_seq(dsi, 0x0E, 0x48);
+	mipi_dsi_dcs_write_seq(dsi, 0x0F, 0x38);
+	mipi_dsi_dcs_write_seq(dsi, 0x10, 0x2B);
+	mipi_dsi_dcs_write_seq(dsi, 0xFF, 0x30);
+	mipi_dsi_dcs_write_seq(dsi, 0xFF, 0x52);
+	mipi_dsi_dcs_write_seq(dsi, 0xFF, 0x00);
+	mipi_dsi_dcs_write_seq(dsi, 0x36, 0x02);
+	mipi_dsi_dcs_write_seq(dsi, 0x3A, 0x70);
+
+	dev_dbg(ctx->dev, "Panel init sequence done\n");
+
+	return 0;
+}
+
+static int panel_nv3051d_unprepare(struct drm_panel *panel)
+{
+	struct panel_nv3051d *ctx = panel_to_panelnv3051d(panel);
+	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
+	int ret;
+
+	ret = mipi_dsi_dcs_set_display_off(dsi);
+	if (ret < 0)
+		dev_err(ctx->dev, "failed to set display off: %d\n", ret);
+
+	msleep(20);
+
+	ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
+	if (ret < 0) {
+		dev_err(ctx->dev, "failed to enter sleep mode: %d\n", ret);
+		return ret;
+	}
+
+	usleep_range(10000, 15000);
+
+	regulator_disable(ctx->vdd);
+
+	return 0;
+}
+
+static int panel_nv3051d_prepare(struct drm_panel *panel)
+{
+	struct panel_nv3051d *ctx = panel_to_panelnv3051d(panel);
+	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
+	int ret;
+
+	dev_dbg(ctx->dev, "Resetting the panel\n");
+	ret = regulator_enable(ctx->vdd);
+	if (ret < 0) {
+		dev_err(ctx->dev, "Failed to enable vdd supply: %d\n", ret);
+		return ret;
+	}
+
+	usleep_range(2000, 3000);
+	gpiod_set_value_cansleep(ctx->reset_gpio, 1);
+	msleep(150);
+	gpiod_set_value_cansleep(ctx->reset_gpio, 0);
+	msleep(20);
+
+	ret = panel_nv3051d_init_sequence(ctx);
+	if (ret < 0) {
+		dev_err(ctx->dev, "Panel init sequence failed: %d\n", ret);
+		goto disable_vdd;
+	}
+
+	ret = mipi_dsi_dcs_exit_sleep_mode(dsi);
+	if (ret < 0) {
+		dev_err(ctx->dev, "Failed to exit sleep mode: %d\n", ret);
+		goto disable_vdd;
+	}
+
+	msleep(200);
+
+	ret = mipi_dsi_dcs_set_display_on(dsi);
+	if (ret < 0) {
+		dev_err(ctx->dev, "Failed to set display on: %d\n", ret);
+		goto disable_vdd;
+	}
+
+	usleep_range(10000, 15000);
+
+	return 0;
+
+disable_vdd:
+	regulator_disable(ctx->vdd);
+	return ret;
+}
+
+static int panel_nv3051d_get_modes(struct drm_panel *panel,
+				   struct drm_connector *connector)
+{
+	struct panel_nv3051d *ctx = panel_to_panelnv3051d(panel);
+	const struct nv3051d_panel_info *panel_info = ctx->panel_info;
+	struct drm_display_mode *mode;
+	unsigned int i;
+
+	for (i = 0; i < panel_info->num_modes; i++) {
+		mode = drm_mode_duplicate(connector->dev,
+					  &panel_info->display_modes[i]);
+		if (!mode)
+			return -ENOMEM;
+
+		drm_mode_set_name(mode);
+
+		mode->type = DRM_MODE_TYPE_DRIVER;
+		if (panel_info->num_modes == 1)
+			mode->type |= DRM_MODE_TYPE_PREFERRED;
+
+		drm_mode_probed_add(connector, mode);
+	}
+
+	connector->display_info.bpc = 8;
+	connector->display_info.width_mm = panel_info->width_mm;
+	connector->display_info.height_mm = panel_info->height_mm;
+	connector->display_info.bus_flags = panel_info->bus_flags;
+
+	return panel_info->num_modes;
+}
+
+static const struct drm_panel_funcs panel_nv3051d_funcs = {
+	.unprepare	= panel_nv3051d_unprepare,
+	.prepare	= panel_nv3051d_prepare,
+	.get_modes	= panel_nv3051d_get_modes,
+};
+
+static int panel_nv3051d_probe(struct mipi_dsi_device *dsi)
+{
+	struct device *dev = &dsi->dev;
+	struct panel_nv3051d *ctx;
+	int ret;
+
+	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
+	if (!ctx)
+		return -ENOMEM;
+
+	ctx->dev = dev;
+
+	ctx->panel_info = of_device_get_match_data(dev);
+	if (!ctx->panel_info)
+		return -EINVAL;
+
+	ctx->reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH);
+	if (IS_ERR(ctx->reset_gpio)) {
+		dev_err(dev, "cannot get reset gpio\n");
+		return PTR_ERR(ctx->reset_gpio);
+	}
+
+	ctx->vdd = devm_regulator_get(dev, "vdd");
+	if (IS_ERR(ctx->vdd)) {
+		ret = PTR_ERR(ctx->vdd);
+		if (ret != -EPROBE_DEFER)
+			dev_err(dev, "Failed to request vdd regulator: %d\n", ret);
+		return ret;
+	}
+
+	mipi_dsi_set_drvdata(dsi, ctx);
+
+	dsi->lanes = 4;
+	dsi->format = MIPI_DSI_FMT_RGB888;
+	dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
+			  MIPI_DSI_MODE_LPM | MIPI_DSI_MODE_NO_EOT_PACKET;
+
+	drm_panel_init(&ctx->panel, &dsi->dev, &panel_nv3051d_funcs,
+		       DRM_MODE_CONNECTOR_DSI);
+
+	ret = drm_panel_of_backlight(&ctx->panel);
+	if (ret)
+		return ret;
+
+	drm_panel_add(&ctx->panel);
+
+	ret = mipi_dsi_attach(dsi);
+	if (ret < 0) {
+		dev_err(dev, "mipi_dsi_attach failed: %d\n", ret);
+		drm_panel_remove(&ctx->panel);
+		return ret;
+	}
+
+	return 0;
+}
+
+static void panel_nv3051d_shutdown(struct mipi_dsi_device *dsi)
+{
+	struct panel_nv3051d *ctx = mipi_dsi_get_drvdata(dsi);
+	int ret;
+
+	ret = drm_panel_unprepare(&ctx->panel);
+	if (ret < 0)
+		dev_err(&dsi->dev, "Failed to unprepare panel: %d\n", ret);
+
+	ret = drm_panel_disable(&ctx->panel);
+	if (ret < 0)
+		dev_err(&dsi->dev, "Failed to disable panel: %d\n", ret);
+}
+
+static void panel_nv3051d_remove(struct mipi_dsi_device *dsi)
+{
+	struct panel_nv3051d *ctx = mipi_dsi_get_drvdata(dsi);
+	int ret;
+
+	panel_nv3051d_shutdown(dsi);
+
+	ret = mipi_dsi_detach(dsi);
+	if (ret < 0)
+		dev_err(&dsi->dev, "Failed to detach from DSI host: %d\n", ret);
+
+	drm_panel_remove(&ctx->panel);
+}
+
+static const struct drm_display_mode nv3051d_rgxx3_modes[] = {
+	{ /* 120hz */
+		.hdisplay	= 640,
+		.hsync_start	= 640 + 40,
+		.hsync_end	= 640 + 40 + 2,
+		.htotal		= 640 + 40 + 2 + 80,
+		.vdisplay	= 480,
+		.vsync_start	= 480 + 18,
+		.vsync_end	= 480 + 18 + 2,
+		.vtotal		= 480 + 18 + 2 + 28,
+		.clock		= 48300,
+		.flags		= DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
+	},
+	{ /* 100hz */
+		.hdisplay       = 640,
+		.hsync_start    = 640 + 40,
+		.hsync_end      = 640 + 40 + 2,
+		.htotal         = 640 + 40 + 2 + 80,
+		.vdisplay       = 480,
+		.vsync_start    = 480 + 18,
+		.vsync_end      = 480 + 18 + 2,
+		.vtotal         = 480 + 18 + 2 + 28,
+		.clock          = 40250,
+		.flags		= DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
+	},
+	{ /* 60hz */
+		.hdisplay	= 640,
+		.hsync_start	= 640 + 40,
+		.hsync_end	= 640 + 40 + 2,
+		.htotal		= 640 + 40 + 2 + 80,
+		.vdisplay	= 480,
+		.vsync_start	= 480 + 18,
+		.vsync_end	= 480 + 18 + 2,
+		.vtotal		= 480 + 18 + 2 + 28,
+		.clock		= 24150,
+		.flags		= DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
+	},
+};
+
+static const struct nv3051d_panel_info nv3051d_rgxx3_info = {
+	.display_modes = nv3051d_rgxx3_modes,
+	.num_modes = ARRAY_SIZE(nv3051d_rgxx3_modes),
+	.width_mm = 70,
+	.height_mm = 57,
+	.bus_flags = DRM_BUS_FLAG_DE_LOW | DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE,
+};
+
+static const struct of_device_id newvision_nv3051d_of_match[] = {
+	{ .compatible = "newvision,nv3051d", .data = &nv3051d_rgxx3_info },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, newvision_nv3051d_of_match);
+
+static struct mipi_dsi_driver newvision_nv3051d_driver = {
+	.driver = {
+		.name = "panel-newvision-nv3051d",
+		.of_match_table = newvision_nv3051d_of_match,
+	},
+	.probe	= panel_nv3051d_probe,
+	.remove = panel_nv3051d_remove,
+	.shutdown = panel_nv3051d_shutdown,
+};
+module_mipi_dsi_driver(newvision_nv3051d_driver);
+
+MODULE_AUTHOR("Chris Morgan <macromorgan@hotmail.com>");
+MODULE_DESCRIPTION("DRM driver for Newvision NV3051D based MIPI DSI panels");
+MODULE_LICENSE("GPL");