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, 550 insertions, 0 deletions

diff --git a/drivers/gpu/drm/panel/panel-sony-tulip-truly-nt35521.c b/drivers/gpu/drm/panel/panel-sony-tulip-truly-nt35521.c
new file mode 100644
index 000000000..fa9be3c29
--- /dev/null
+++ b/drivers/gpu/drm/panel/panel-sony-tulip-truly-nt35521.c
@@ -0,0 +1,550 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2021, Linaro Limited
+ *
+ * Generated with linux-mdss-dsi-panel-driver-generator from vendor device tree:
+ *   Copyright (c) 2013, The Linux Foundation. All rights reserved.
+ */
+
+#include <linux/backlight.h>
+#include <linux/delay.h>
+#include <linux/gpio/consumer.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/regulator/consumer.h>
+
+#include <drm/drm_mipi_dsi.h>
+#include <drm/drm_modes.h>
+#include <drm/drm_panel.h>
+
+struct truly_nt35521 {
+	struct drm_panel panel;
+	struct mipi_dsi_device *dsi;
+	struct regulator_bulk_data supplies[2];
+	struct gpio_desc *reset_gpio;
+	struct gpio_desc *blen_gpio;
+	bool prepared;
+	bool enabled;
+};
+
+static inline
+struct truly_nt35521 *to_truly_nt35521(struct drm_panel *panel)
+{
+	return container_of(panel, struct truly_nt35521, panel);
+}
+
+#define dsi_generic_write_seq(dsi, seq...) do {				\
+		static const u8 d[] = { seq };				\
+		int ret;						\
+		ret = mipi_dsi_generic_write(dsi, d, ARRAY_SIZE(d));	\
+		if (ret < 0)						\
+			return ret;					\
+	} while (0)
+
+static void truly_nt35521_reset(struct truly_nt35521 *ctx)
+{
+	gpiod_set_value_cansleep(ctx->reset_gpio, 1);
+	usleep_range(1000, 2000);
+	gpiod_set_value_cansleep(ctx->reset_gpio, 1);
+	usleep_range(10000, 11000);
+	gpiod_set_value_cansleep(ctx->reset_gpio, 0);
+	msleep(150);
+}
+
+static int truly_nt35521_on(struct truly_nt35521 *ctx)
+{
+	struct mipi_dsi_device *dsi = ctx->dsi;
+	struct device *dev = &dsi->dev;
+	int ret;
+
+	dsi->mode_flags |= MIPI_DSI_MODE_LPM;
+
+	dsi_generic_write_seq(dsi, 0xf0, 0x55, 0xaa, 0x52, 0x08, 0x00);
+	dsi_generic_write_seq(dsi, 0xff, 0xaa, 0x55, 0xa5, 0x80);
+	dsi_generic_write_seq(dsi, 0x6f, 0x11, 0x00);
+	dsi_generic_write_seq(dsi, 0xf7, 0x20, 0x00);
+	dsi_generic_write_seq(dsi, 0x6f, 0x01);
+	dsi_generic_write_seq(dsi, 0xb1, 0x21);
+	dsi_generic_write_seq(dsi, 0xbd, 0x01, 0xa0, 0x10, 0x08, 0x01);
+	dsi_generic_write_seq(dsi, 0xb8, 0x01, 0x02, 0x0c, 0x02);
+	dsi_generic_write_seq(dsi, 0xbb, 0x11, 0x11);
+	dsi_generic_write_seq(dsi, 0xbc, 0x00, 0x00);
+	dsi_generic_write_seq(dsi, 0xb6, 0x02);
+	dsi_generic_write_seq(dsi, 0xf0, 0x55, 0xaa, 0x52, 0x08, 0x01);
+	dsi_generic_write_seq(dsi, 0xb0, 0x09, 0x09);
+	dsi_generic_write_seq(dsi, 0xb1, 0x09, 0x09);
+	dsi_generic_write_seq(dsi, 0xbc, 0x8c, 0x00);
+	dsi_generic_write_seq(dsi, 0xbd, 0x8c, 0x00);
+	dsi_generic_write_seq(dsi, 0xca, 0x00);
+	dsi_generic_write_seq(dsi, 0xc0, 0x04);
+	dsi_generic_write_seq(dsi, 0xbe, 0xb5);
+	dsi_generic_write_seq(dsi, 0xb3, 0x35, 0x35);
+	dsi_generic_write_seq(dsi, 0xb4, 0x25, 0x25);
+	dsi_generic_write_seq(dsi, 0xb9, 0x43, 0x43);
+	dsi_generic_write_seq(dsi, 0xba, 0x24, 0x24);
+	dsi_generic_write_seq(dsi, 0xf0, 0x55, 0xaa, 0x52, 0x08, 0x02);
+	dsi_generic_write_seq(dsi, 0xee, 0x03);
+	dsi_generic_write_seq(dsi, 0xb0,
+			      0x00, 0xb2, 0x00, 0xb3, 0x00, 0xb6, 0x00, 0xc3,
+			      0x00, 0xce, 0x00, 0xe1, 0x00, 0xf3, 0x01, 0x11);
+	dsi_generic_write_seq(dsi, 0xb1,
+			      0x01, 0x2e, 0x01, 0x5c, 0x01, 0x82, 0x01, 0xc3,
+			      0x01, 0xfe, 0x02, 0x00, 0x02, 0x37, 0x02, 0x77);
+	dsi_generic_write_seq(dsi, 0xb2,
+			      0x02, 0xa1, 0x02, 0xd7, 0x02, 0xfe, 0x03, 0x2c,
+			      0x03, 0x4b, 0x03, 0x63, 0x03, 0x8f, 0x03, 0x90);
+	dsi_generic_write_seq(dsi, 0xb3, 0x03, 0x96, 0x03, 0x98);
+	dsi_generic_write_seq(dsi, 0xb4,
+			      0x00, 0x81, 0x00, 0x8b, 0x00, 0x9c, 0x00, 0xa9,
+			      0x00, 0xb5, 0x00, 0xcb, 0x00, 0xdf, 0x01, 0x02);
+	dsi_generic_write_seq(dsi, 0xb5,
+			      0x01, 0x1f, 0x01, 0x51, 0x01, 0x7a, 0x01, 0xbf,
+			      0x01, 0xfa, 0x01, 0xfc, 0x02, 0x34, 0x02, 0x76);
+	dsi_generic_write_seq(dsi, 0xb6,
+			      0x02, 0x9f, 0x02, 0xd7, 0x02, 0xfc, 0x03, 0x2c,
+			      0x03, 0x4a, 0x03, 0x63, 0x03, 0x8f, 0x03, 0xa2);
+	dsi_generic_write_seq(dsi, 0xb7, 0x03, 0xb8, 0x03, 0xba);
+	dsi_generic_write_seq(dsi, 0xb8,
+			      0x00, 0x01, 0x00, 0x02, 0x00, 0x0e, 0x00, 0x2a,
+			      0x00, 0x41, 0x00, 0x67, 0x00, 0x87, 0x00, 0xb9);
+	dsi_generic_write_seq(dsi, 0xb9,
+			      0x00, 0xe2, 0x01, 0x22, 0x01, 0x54, 0x01, 0xa3,
+			      0x01, 0xe6, 0x01, 0xe7, 0x02, 0x24, 0x02, 0x67);
+	dsi_generic_write_seq(dsi, 0xba,
+			      0x02, 0x93, 0x02, 0xcd, 0x02, 0xf6, 0x03, 0x31,
+			      0x03, 0x6c, 0x03, 0xe9, 0x03, 0xef, 0x03, 0xf4);
+	dsi_generic_write_seq(dsi, 0xbb, 0x03, 0xf6, 0x03, 0xf7);
+	dsi_generic_write_seq(dsi, 0xf0, 0x55, 0xaa, 0x52, 0x08, 0x03);
+	dsi_generic_write_seq(dsi, 0xb0, 0x22, 0x00);
+	dsi_generic_write_seq(dsi, 0xb1, 0x22, 0x00);
+	dsi_generic_write_seq(dsi, 0xb2, 0x05, 0x00, 0x60, 0x00, 0x00);
+	dsi_generic_write_seq(dsi, 0xb3, 0x05, 0x00, 0x60, 0x00, 0x00);
+	dsi_generic_write_seq(dsi, 0xb4, 0x05, 0x00, 0x60, 0x00, 0x00);
+	dsi_generic_write_seq(dsi, 0xb5, 0x05, 0x00, 0x60, 0x00, 0x00);
+	dsi_generic_write_seq(dsi, 0xba, 0x53, 0x00, 0x60, 0x00, 0x00);
+	dsi_generic_write_seq(dsi, 0xbb, 0x53, 0x00, 0x60, 0x00, 0x00);
+	dsi_generic_write_seq(dsi, 0xbc, 0x53, 0x00, 0x60, 0x00, 0x00);
+	dsi_generic_write_seq(dsi, 0xbd, 0x53, 0x00, 0x60, 0x00, 0x00);
+	dsi_generic_write_seq(dsi, 0xc0, 0x00, 0x34, 0x00, 0x00);
+	dsi_generic_write_seq(dsi, 0xc1, 0x00, 0x00, 0x34, 0x00);
+	dsi_generic_write_seq(dsi, 0xc2, 0x00, 0x00, 0x34, 0x00);
+	dsi_generic_write_seq(dsi, 0xc3, 0x00, 0x00, 0x34, 0x00);
+	dsi_generic_write_seq(dsi, 0xc4, 0x60);
+	dsi_generic_write_seq(dsi, 0xc5, 0xc0);
+	dsi_generic_write_seq(dsi, 0xc6, 0x00);
+	dsi_generic_write_seq(dsi, 0xc7, 0x00);
+	dsi_generic_write_seq(dsi, 0xf0, 0x55, 0xaa, 0x52, 0x08, 0x05);
+	dsi_generic_write_seq(dsi, 0xb0, 0x17, 0x06);
+	dsi_generic_write_seq(dsi, 0xb1, 0x17, 0x06);
+	dsi_generic_write_seq(dsi, 0xb2, 0x17, 0x06);
+	dsi_generic_write_seq(dsi, 0xb3, 0x17, 0x06);
+	dsi_generic_write_seq(dsi, 0xb4, 0x17, 0x06);
+	dsi_generic_write_seq(dsi, 0xb5, 0x17, 0x06);
+	dsi_generic_write_seq(dsi, 0xb6, 0x17, 0x06);
+	dsi_generic_write_seq(dsi, 0xb7, 0x17, 0x06);
+	dsi_generic_write_seq(dsi, 0xb8, 0x00);
+	dsi_generic_write_seq(dsi, 0xb9, 0x00, 0x03);
+	dsi_generic_write_seq(dsi, 0xba, 0x00, 0x00);
+	dsi_generic_write_seq(dsi, 0xbb, 0x02, 0x03);
+	dsi_generic_write_seq(dsi, 0xbc, 0x02, 0x03);
+	dsi_generic_write_seq(dsi, 0xbd, 0x03, 0x03, 0x00, 0x03, 0x03);
+	dsi_generic_write_seq(dsi, 0xc0, 0x0b);
+	dsi_generic_write_seq(dsi, 0xc1, 0x09);
+	dsi_generic_write_seq(dsi, 0xc2, 0xa6);
+	dsi_generic_write_seq(dsi, 0xc3, 0x05);
+	dsi_generic_write_seq(dsi, 0xc4, 0x00);
+	dsi_generic_write_seq(dsi, 0xc5, 0x02);
+	dsi_generic_write_seq(dsi, 0xc6, 0x22);
+	dsi_generic_write_seq(dsi, 0xc7, 0x03);
+	dsi_generic_write_seq(dsi, 0xc8, 0x07, 0x20);
+	dsi_generic_write_seq(dsi, 0xc9, 0x03, 0x20);
+	dsi_generic_write_seq(dsi, 0xca, 0x01, 0x60);
+	dsi_generic_write_seq(dsi, 0xcb, 0x01, 0x60);
+	dsi_generic_write_seq(dsi, 0xcc, 0x00, 0x00, 0x02);
+	dsi_generic_write_seq(dsi, 0xcd, 0x00, 0x00, 0x02);
+	dsi_generic_write_seq(dsi, 0xce, 0x00, 0x00, 0x02);
+	dsi_generic_write_seq(dsi, 0xcf, 0x00, 0x00, 0x02);
+	dsi_generic_write_seq(dsi, 0xd1, 0x00, 0x05, 0x01, 0x07, 0x10);
+	dsi_generic_write_seq(dsi, 0xd2, 0x10, 0x05, 0x05, 0x03, 0x10);
+	dsi_generic_write_seq(dsi, 0xd3, 0x20, 0x00, 0x43, 0x07, 0x10);
+	dsi_generic_write_seq(dsi, 0xd4, 0x30, 0x00, 0x43, 0x07, 0x10);
+	dsi_generic_write_seq(dsi, 0xd0,
+			      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00);
+	dsi_generic_write_seq(dsi, 0xd5,
+			      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			      0x00, 0x00, 0x00);
+	dsi_generic_write_seq(dsi, 0xd6,
+			      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			      0x00, 0x00, 0x00);
+	dsi_generic_write_seq(dsi, 0xd7,
+			      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			      0x00, 0x00, 0x00);
+	dsi_generic_write_seq(dsi, 0xd8, 0x00, 0x00, 0x00, 0x00, 0x00);
+	dsi_generic_write_seq(dsi, 0xe5, 0x06);
+	dsi_generic_write_seq(dsi, 0xe6, 0x06);
+	dsi_generic_write_seq(dsi, 0xe7, 0x00);
+	dsi_generic_write_seq(dsi, 0xe8, 0x06);
+	dsi_generic_write_seq(dsi, 0xe9, 0x06);
+	dsi_generic_write_seq(dsi, 0xea, 0x06);
+	dsi_generic_write_seq(dsi, 0xeb, 0x00);
+	dsi_generic_write_seq(dsi, 0xec, 0x00);
+	dsi_generic_write_seq(dsi, 0xed, 0x30);
+	dsi_generic_write_seq(dsi, 0xf0, 0x55, 0xaa, 0x52, 0x08, 0x06);
+	dsi_generic_write_seq(dsi, 0xb0, 0x31, 0x31);
+	dsi_generic_write_seq(dsi, 0xb1, 0x31, 0x31);
+	dsi_generic_write_seq(dsi, 0xb2, 0x2d, 0x2e);
+	dsi_generic_write_seq(dsi, 0xb3, 0x31, 0x34);
+	dsi_generic_write_seq(dsi, 0xb4, 0x29, 0x2a);
+	dsi_generic_write_seq(dsi, 0xb5, 0x12, 0x10);
+	dsi_generic_write_seq(dsi, 0xb6, 0x18, 0x16);
+	dsi_generic_write_seq(dsi, 0xb7, 0x00, 0x02);
+	dsi_generic_write_seq(dsi, 0xb8, 0x08, 0x31);
+	dsi_generic_write_seq(dsi, 0xb9, 0x31, 0x31);
+	dsi_generic_write_seq(dsi, 0xba, 0x31, 0x31);
+	dsi_generic_write_seq(dsi, 0xbb, 0x31, 0x08);
+	dsi_generic_write_seq(dsi, 0xbc, 0x03, 0x01);
+	dsi_generic_write_seq(dsi, 0xbd, 0x17, 0x19);
+	dsi_generic_write_seq(dsi, 0xbe, 0x11, 0x13);
+	dsi_generic_write_seq(dsi, 0xbf, 0x2a, 0x29);
+	dsi_generic_write_seq(dsi, 0xc0, 0x34, 0x31);
+	dsi_generic_write_seq(dsi, 0xc1, 0x2e, 0x2d);
+	dsi_generic_write_seq(dsi, 0xc2, 0x31, 0x31);
+	dsi_generic_write_seq(dsi, 0xc3, 0x31, 0x31);
+	dsi_generic_write_seq(dsi, 0xc4, 0x31, 0x31);
+	dsi_generic_write_seq(dsi, 0xc5, 0x31, 0x31);
+	dsi_generic_write_seq(dsi, 0xc6, 0x2e, 0x2d);
+	dsi_generic_write_seq(dsi, 0xc7, 0x31, 0x34);
+	dsi_generic_write_seq(dsi, 0xc8, 0x29, 0x2a);
+	dsi_generic_write_seq(dsi, 0xc9, 0x17, 0x19);
+	dsi_generic_write_seq(dsi, 0xca, 0x11, 0x13);
+	dsi_generic_write_seq(dsi, 0xcb, 0x03, 0x01);
+	dsi_generic_write_seq(dsi, 0xcc, 0x08, 0x31);
+	dsi_generic_write_seq(dsi, 0xcd, 0x31, 0x31);
+	dsi_generic_write_seq(dsi, 0xce, 0x31, 0x31);
+	dsi_generic_write_seq(dsi, 0xcf, 0x31, 0x08);
+	dsi_generic_write_seq(dsi, 0xd0, 0x00, 0x02);
+	dsi_generic_write_seq(dsi, 0xd1, 0x12, 0x10);
+	dsi_generic_write_seq(dsi, 0xd2, 0x18, 0x16);
+	dsi_generic_write_seq(dsi, 0xd3, 0x2a, 0x29);
+	dsi_generic_write_seq(dsi, 0xd4, 0x34, 0x31);
+	dsi_generic_write_seq(dsi, 0xd5, 0x2d, 0x2e);
+	dsi_generic_write_seq(dsi, 0xd6, 0x31, 0x31);
+	dsi_generic_write_seq(dsi, 0xd7, 0x31, 0x31);
+	dsi_generic_write_seq(dsi, 0xe5, 0x31, 0x31);
+	dsi_generic_write_seq(dsi, 0xe6, 0x31, 0x31);
+	dsi_generic_write_seq(dsi, 0xd8, 0x00, 0x00, 0x00, 0x00, 0x00);
+	dsi_generic_write_seq(dsi, 0xd9, 0x00, 0x00, 0x00, 0x00, 0x00);
+	dsi_generic_write_seq(dsi, 0xe7, 0x00);
+	dsi_generic_write_seq(dsi, 0x6f, 0x02);
+	dsi_generic_write_seq(dsi, 0xf7, 0x47);
+	dsi_generic_write_seq(dsi, 0x6f, 0x0a);
+	dsi_generic_write_seq(dsi, 0xf7, 0x02);
+	dsi_generic_write_seq(dsi, 0x6f, 0x17);
+	dsi_generic_write_seq(dsi, 0xf4, 0x60);
+	dsi_generic_write_seq(dsi, 0x6f, 0x01);
+	dsi_generic_write_seq(dsi, 0xf9, 0x46);
+	dsi_generic_write_seq(dsi, 0x6f, 0x11);
+	dsi_generic_write_seq(dsi, 0xf3, 0x01);
+	dsi_generic_write_seq(dsi, 0x35, 0x00);
+	dsi_generic_write_seq(dsi, 0xf0, 0x55, 0xaa, 0x52, 0x08, 0x00);
+	dsi_generic_write_seq(dsi, 0xd9, 0x02, 0x03, 0x00);
+	dsi_generic_write_seq(dsi, 0xf0, 0x55, 0xaa, 0x52, 0x00, 0x00);
+	dsi_generic_write_seq(dsi, 0xf0, 0x55, 0xaa, 0x52, 0x08, 0x00);
+	dsi_generic_write_seq(dsi, 0xb1, 0x6c, 0x21);
+	dsi_generic_write_seq(dsi, 0xf0, 0x55, 0xaa, 0x52, 0x00, 0x00);
+	dsi_generic_write_seq(dsi, 0x35, 0x00);
+
+	ret = mipi_dsi_dcs_exit_sleep_mode(dsi);
+	if (ret < 0) {
+		dev_err(dev, "Failed to exit sleep mode: %d\n", ret);
+		return ret;
+	}
+	msleep(120);
+
+	ret = mipi_dsi_dcs_set_display_on(dsi);
+	if (ret < 0) {
+		dev_err(dev, "Failed to set display on: %d\n", ret);
+		return ret;
+	}
+	usleep_range(1000, 2000);
+
+	dsi_generic_write_seq(dsi, 0x53, 0x24);
+
+	return 0;
+}
+
+static int truly_nt35521_off(struct truly_nt35521 *ctx)
+{
+	struct mipi_dsi_device *dsi = ctx->dsi;
+	struct device *dev = &dsi->dev;
+	int ret;
+
+	dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
+
+	ret = mipi_dsi_dcs_set_display_off(dsi);
+	if (ret < 0) {
+		dev_err(dev, "Failed to set display off: %d\n", ret);
+		return ret;
+	}
+	msleep(50);
+
+	ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
+	if (ret < 0) {
+		dev_err(dev, "Failed to enter sleep mode: %d\n", ret);
+		return ret;
+	}
+	msleep(150);
+
+	return 0;
+}
+
+static int truly_nt35521_prepare(struct drm_panel *panel)
+{
+	struct truly_nt35521 *ctx = to_truly_nt35521(panel);
+	struct device *dev = &ctx->dsi->dev;
+	int ret;
+
+	if (ctx->prepared)
+		return 0;
+
+	ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
+	if (ret < 0) {
+		dev_err(dev, "Failed to enable regulators: %d\n", ret);
+		return ret;
+	}
+
+	truly_nt35521_reset(ctx);
+
+	ret = truly_nt35521_on(ctx);
+	if (ret < 0) {
+		dev_err(dev, "Failed to initialize panel: %d\n", ret);
+		gpiod_set_value_cansleep(ctx->reset_gpio, 1);
+		return ret;
+	}
+
+	ctx->prepared = true;
+	return 0;
+}
+
+static int truly_nt35521_unprepare(struct drm_panel *panel)
+{
+	struct truly_nt35521 *ctx = to_truly_nt35521(panel);
+	struct device *dev = &ctx->dsi->dev;
+	int ret;
+
+	if (!ctx->prepared)
+		return 0;
+
+	ret = truly_nt35521_off(ctx);
+	if (ret < 0)
+		dev_err(dev, "Failed to un-initialize panel: %d\n", ret);
+
+	gpiod_set_value_cansleep(ctx->reset_gpio, 1);
+	regulator_bulk_disable(ARRAY_SIZE(ctx->supplies),
+			       ctx->supplies);
+
+	ctx->prepared = false;
+	return 0;
+}
+
+static int truly_nt35521_enable(struct drm_panel *panel)
+{
+	struct truly_nt35521 *ctx = to_truly_nt35521(panel);
+
+	if (ctx->enabled)
+		return 0;
+
+	gpiod_set_value_cansleep(ctx->blen_gpio, 1);
+
+	ctx->enabled = true;
+	return 0;
+}
+
+static int truly_nt35521_disable(struct drm_panel *panel)
+{
+	struct truly_nt35521 *ctx = to_truly_nt35521(panel);
+
+	if (!ctx->enabled)
+		return 0;
+
+	gpiod_set_value_cansleep(ctx->blen_gpio, 0);
+
+	ctx->enabled = false;
+	return 0;
+}
+
+static const struct drm_display_mode truly_nt35521_mode = {
+	.clock = (720 + 232 + 20 + 112) * (1280 + 18 + 1 + 18) * 60 / 1000,
+	.hdisplay = 720,
+	.hsync_start = 720 + 232,
+	.hsync_end = 720 + 232 + 20,
+	.htotal = 720 + 232 + 20 + 112,
+	.vdisplay = 1280,
+	.vsync_start = 1280 + 18,
+	.vsync_end = 1280 + 18 + 1,
+	.vtotal = 1280 + 18 + 1 + 18,
+	.width_mm = 65,
+	.height_mm = 116,
+};
+
+static int truly_nt35521_get_modes(struct drm_panel *panel,
+				   struct drm_connector *connector)
+{
+	struct drm_display_mode *mode;
+
+	mode = drm_mode_duplicate(connector->dev, &truly_nt35521_mode);
+	if (!mode)
+		return -ENOMEM;
+
+	drm_mode_set_name(mode);
+
+	mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
+	connector->display_info.width_mm = mode->width_mm;
+	connector->display_info.height_mm = mode->height_mm;
+	drm_mode_probed_add(connector, mode);
+
+	return 1;
+}
+
+static const struct drm_panel_funcs truly_nt35521_panel_funcs = {
+	.prepare = truly_nt35521_prepare,
+	.unprepare = truly_nt35521_unprepare,
+	.enable = truly_nt35521_enable,
+	.disable = truly_nt35521_disable,
+	.get_modes = truly_nt35521_get_modes,
+};
+
+static int truly_nt35521_bl_update_status(struct backlight_device *bl)
+{
+	struct mipi_dsi_device *dsi = bl_get_data(bl);
+	u16 brightness = backlight_get_brightness(bl);
+	int ret;
+
+	ret = mipi_dsi_dcs_set_display_brightness(dsi, brightness);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+static int truly_nt35521_bl_get_brightness(struct backlight_device *bl)
+{
+	struct mipi_dsi_device *dsi = bl_get_data(bl);
+	u16 brightness;
+	int ret;
+
+	ret = mipi_dsi_dcs_get_display_brightness(dsi, &brightness);
+	if (ret < 0)
+		return ret;
+
+	return brightness & 0xff;
+}
+
+static const struct backlight_ops truly_nt35521_bl_ops = {
+	.update_status = truly_nt35521_bl_update_status,
+	.get_brightness = truly_nt35521_bl_get_brightness,
+};
+
+static struct backlight_device *
+truly_nt35521_create_backlight(struct mipi_dsi_device *dsi)
+{
+	struct device *dev = &dsi->dev;
+	const struct backlight_properties props = {
+		.type = BACKLIGHT_RAW,
+		.brightness = 255,
+		.max_brightness = 255,
+	};
+
+	return devm_backlight_device_register(dev, dev_name(dev), dev, dsi,
+					      &truly_nt35521_bl_ops, &props);
+}
+
+static int truly_nt35521_probe(struct mipi_dsi_device *dsi)
+{
+	struct device *dev = &dsi->dev;
+	struct truly_nt35521 *ctx;
+	int ret;
+
+	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
+	if (!ctx)
+		return -ENOMEM;
+
+	ctx->supplies[0].supply = "positive5";
+	ctx->supplies[1].supply = "negative5";
+	ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ctx->supplies),
+				      ctx->supplies);
+	if (ret < 0) {
+		dev_err(dev, "Failed to get regulators: %d\n", ret);
+		return ret;
+	}
+
+	ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
+	if (IS_ERR(ctx->reset_gpio))
+		return dev_err_probe(dev, PTR_ERR(ctx->reset_gpio),
+				     "Failed to get reset-gpios\n");
+
+	ctx->blen_gpio = devm_gpiod_get(dev, "backlight", GPIOD_OUT_LOW);
+	if (IS_ERR(ctx->blen_gpio))
+		return dev_err_probe(dev, PTR_ERR(ctx->blen_gpio),
+				     "Failed to get backlight-gpios\n");
+
+	ctx->dsi = dsi;
+	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_VIDEO_HSE | MIPI_DSI_MODE_NO_EOT_PACKET |
+			  MIPI_DSI_CLOCK_NON_CONTINUOUS;
+
+	drm_panel_init(&ctx->panel, dev, &truly_nt35521_panel_funcs,
+		       DRM_MODE_CONNECTOR_DSI);
+
+	ctx->panel.backlight = truly_nt35521_create_backlight(dsi);
+	if (IS_ERR(ctx->panel.backlight))
+		return dev_err_probe(dev, PTR_ERR(ctx->panel.backlight),
+				     "Failed to create backlight\n");
+
+	drm_panel_add(&ctx->panel);
+
+	ret = mipi_dsi_attach(dsi);
+	if (ret < 0) {
+		dev_err(dev, "Failed to attach to DSI host: %d\n", ret);
+		drm_panel_remove(&ctx->panel);
+		return ret;
+	}
+
+	return 0;
+}
+
+static void truly_nt35521_remove(struct mipi_dsi_device *dsi)
+{
+	struct truly_nt35521 *ctx = mipi_dsi_get_drvdata(dsi);
+	int ret;
+
+	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 of_device_id truly_nt35521_of_match[] = {
+	{ .compatible = "sony,tulip-truly-nt35521" },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, truly_nt35521_of_match);
+
+static struct mipi_dsi_driver truly_nt35521_driver = {
+	.probe = truly_nt35521_probe,
+	.remove = truly_nt35521_remove,
+	.driver = {
+		.name = "panel-truly-nt35521",
+		.of_match_table = truly_nt35521_of_match,
+	},
+};
+module_mipi_dsi_driver(truly_nt35521_driver);
+
+MODULE_AUTHOR("Shawn Guo <shawn.guo@linaro.org>");
+MODULE_DESCRIPTION("DRM driver for Sony Tulip Truly NT35521 panel");
+MODULE_LICENSE("GPL v2");