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, 460 insertions, 0 deletions

diff --git a/drivers/gpu/drm/panel/panel-kingdisplay-kd097d04.c b/drivers/gpu/drm/panel/panel-kingdisplay-kd097d04.c
new file mode 100644
index 000000000..17f8d80cf
--- /dev/null
+++ b/drivers/gpu/drm/panel/panel-kingdisplay-kd097d04.c
@@ -0,0 +1,460 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2017, Fuzhou Rockchip Electronics Co., Ltd
+ */
+
+#include <linux/delay.h>
+#include <linux/gpio/consumer.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/regulator/consumer.h>
+
+#include <video/mipi_display.h>
+
+#include <drm/drm_crtc.h>
+#include <drm/drm_device.h>
+#include <drm/drm_mipi_dsi.h>
+#include <drm/drm_modes.h>
+#include <drm/drm_panel.h>
+
+struct kingdisplay_panel {
+	struct drm_panel base;
+	struct mipi_dsi_device *link;
+
+	struct regulator *supply;
+	struct gpio_desc *enable_gpio;
+
+	bool prepared;
+	bool enabled;
+};
+
+struct kingdisplay_panel_cmd {
+	char cmd;
+	char data;
+};
+
+/*
+ * According to the discussion on
+ * https://review.coreboot.org/#/c/coreboot/+/22472/
+ * the panel init array is not part of the panels datasheet but instead
+ * just came in this form from the panel vendor.
+ */
+static const struct kingdisplay_panel_cmd init_code[] = {
+	/* voltage setting */
+	{ 0xB0, 0x00 },
+	{ 0xB2, 0x02 },
+	{ 0xB3, 0x11 },
+	{ 0xB4, 0x00 },
+	{ 0xB6, 0x80 },
+	/* VCOM disable */
+	{ 0xB7, 0x02 },
+	{ 0xB8, 0x80 },
+	{ 0xBA, 0x43 },
+	/* VCOM setting */
+	{ 0xBB, 0x53 },
+	/* VSP setting */
+	{ 0xBC, 0x0A },
+	/* VSN setting */
+	{ 0xBD, 0x4A },
+	/* VGH setting */
+	{ 0xBE, 0x2F },
+	/* VGL setting */
+	{ 0xBF, 0x1A },
+	{ 0xF0, 0x39 },
+	{ 0xF1, 0x22 },
+	/* Gamma setting */
+	{ 0xB0, 0x02 },
+	{ 0xC0, 0x00 },
+	{ 0xC1, 0x01 },
+	{ 0xC2, 0x0B },
+	{ 0xC3, 0x15 },
+	{ 0xC4, 0x22 },
+	{ 0xC5, 0x11 },
+	{ 0xC6, 0x15 },
+	{ 0xC7, 0x19 },
+	{ 0xC8, 0x1A },
+	{ 0xC9, 0x16 },
+	{ 0xCA, 0x18 },
+	{ 0xCB, 0x13 },
+	{ 0xCC, 0x18 },
+	{ 0xCD, 0x13 },
+	{ 0xCE, 0x1C },
+	{ 0xCF, 0x19 },
+	{ 0xD0, 0x21 },
+	{ 0xD1, 0x2C },
+	{ 0xD2, 0x2F },
+	{ 0xD3, 0x30 },
+	{ 0xD4, 0x19 },
+	{ 0xD5, 0x1F },
+	{ 0xD6, 0x00 },
+	{ 0xD7, 0x01 },
+	{ 0xD8, 0x0B },
+	{ 0xD9, 0x15 },
+	{ 0xDA, 0x22 },
+	{ 0xDB, 0x11 },
+	{ 0xDC, 0x15 },
+	{ 0xDD, 0x19 },
+	{ 0xDE, 0x1A },
+	{ 0xDF, 0x16 },
+	{ 0xE0, 0x18 },
+	{ 0xE1, 0x13 },
+	{ 0xE2, 0x18 },
+	{ 0xE3, 0x13 },
+	{ 0xE4, 0x1C },
+	{ 0xE5, 0x19 },
+	{ 0xE6, 0x21 },
+	{ 0xE7, 0x2C },
+	{ 0xE8, 0x2F },
+	{ 0xE9, 0x30 },
+	{ 0xEA, 0x19 },
+	{ 0xEB, 0x1F },
+	/* GOA MUX setting */
+	{ 0xB0, 0x01 },
+	{ 0xC0, 0x10 },
+	{ 0xC1, 0x0F },
+	{ 0xC2, 0x0E },
+	{ 0xC3, 0x0D },
+	{ 0xC4, 0x0C },
+	{ 0xC5, 0x0B },
+	{ 0xC6, 0x0A },
+	{ 0xC7, 0x09 },
+	{ 0xC8, 0x08 },
+	{ 0xC9, 0x07 },
+	{ 0xCA, 0x06 },
+	{ 0xCB, 0x05 },
+	{ 0xCC, 0x00 },
+	{ 0xCD, 0x01 },
+	{ 0xCE, 0x02 },
+	{ 0xCF, 0x03 },
+	{ 0xD0, 0x04 },
+	{ 0xD6, 0x10 },
+	{ 0xD7, 0x0F },
+	{ 0xD8, 0x0E },
+	{ 0xD9, 0x0D },
+	{ 0xDA, 0x0C },
+	{ 0xDB, 0x0B },
+	{ 0xDC, 0x0A },
+	{ 0xDD, 0x09 },
+	{ 0xDE, 0x08 },
+	{ 0xDF, 0x07 },
+	{ 0xE0, 0x06 },
+	{ 0xE1, 0x05 },
+	{ 0xE2, 0x00 },
+	{ 0xE3, 0x01 },
+	{ 0xE4, 0x02 },
+	{ 0xE5, 0x03 },
+	{ 0xE6, 0x04 },
+	{ 0xE7, 0x00 },
+	{ 0xEC, 0xC0 },
+	/* GOA timing setting */
+	{ 0xB0, 0x03 },
+	{ 0xC0, 0x01 },
+	{ 0xC2, 0x6F },
+	{ 0xC3, 0x6F },
+	{ 0xC5, 0x36 },
+	{ 0xC8, 0x08 },
+	{ 0xC9, 0x04 },
+	{ 0xCA, 0x41 },
+	{ 0xCC, 0x43 },
+	{ 0xCF, 0x60 },
+	{ 0xD2, 0x04 },
+	{ 0xD3, 0x04 },
+	{ 0xD4, 0x03 },
+	{ 0xD5, 0x02 },
+	{ 0xD6, 0x01 },
+	{ 0xD7, 0x00 },
+	{ 0xDB, 0x01 },
+	{ 0xDE, 0x36 },
+	{ 0xE6, 0x6F },
+	{ 0xE7, 0x6F },
+	/* GOE setting */
+	{ 0xB0, 0x06 },
+	{ 0xB8, 0xA5 },
+	{ 0xC0, 0xA5 },
+	{ 0xD5, 0x3F },
+};
+
+static inline
+struct kingdisplay_panel *to_kingdisplay_panel(struct drm_panel *panel)
+{
+	return container_of(panel, struct kingdisplay_panel, base);
+}
+
+static int kingdisplay_panel_disable(struct drm_panel *panel)
+{
+	struct kingdisplay_panel *kingdisplay = to_kingdisplay_panel(panel);
+	int err;
+
+	if (!kingdisplay->enabled)
+		return 0;
+
+	err = mipi_dsi_dcs_set_display_off(kingdisplay->link);
+	if (err < 0)
+		dev_err(panel->dev, "failed to set display off: %d\n", err);
+
+	kingdisplay->enabled = false;
+
+	return 0;
+}
+
+static int kingdisplay_panel_unprepare(struct drm_panel *panel)
+{
+	struct kingdisplay_panel *kingdisplay = to_kingdisplay_panel(panel);
+	int err;
+
+	if (!kingdisplay->prepared)
+		return 0;
+
+	err = mipi_dsi_dcs_enter_sleep_mode(kingdisplay->link);
+	if (err < 0) {
+		dev_err(panel->dev, "failed to enter sleep mode: %d\n", err);
+		return err;
+	}
+
+	/* T15: 120ms */
+	msleep(120);
+
+	gpiod_set_value_cansleep(kingdisplay->enable_gpio, 0);
+
+	err = regulator_disable(kingdisplay->supply);
+	if (err < 0)
+		return err;
+
+	kingdisplay->prepared = false;
+
+	return 0;
+}
+
+static int kingdisplay_panel_prepare(struct drm_panel *panel)
+{
+	struct kingdisplay_panel *kingdisplay = to_kingdisplay_panel(panel);
+	int err, regulator_err;
+	unsigned int i;
+
+	if (kingdisplay->prepared)
+		return 0;
+
+	gpiod_set_value_cansleep(kingdisplay->enable_gpio, 0);
+
+	err = regulator_enable(kingdisplay->supply);
+	if (err < 0)
+		return err;
+
+	/* T2: 15ms */
+	usleep_range(15000, 16000);
+
+	gpiod_set_value_cansleep(kingdisplay->enable_gpio, 1);
+
+	/* T4: 15ms */
+	usleep_range(15000, 16000);
+
+	for (i = 0; i < ARRAY_SIZE(init_code); i++) {
+		err = mipi_dsi_generic_write(kingdisplay->link, &init_code[i],
+					sizeof(struct kingdisplay_panel_cmd));
+		if (err < 0) {
+			dev_err(panel->dev, "failed write init cmds: %d\n", err);
+			goto poweroff;
+		}
+	}
+
+	err = mipi_dsi_dcs_exit_sleep_mode(kingdisplay->link);
+	if (err < 0) {
+		dev_err(panel->dev, "failed to exit sleep mode: %d\n", err);
+		goto poweroff;
+	}
+
+	/* T6: 120ms */
+	msleep(120);
+
+	err = mipi_dsi_dcs_set_display_on(kingdisplay->link);
+	if (err < 0) {
+		dev_err(panel->dev, "failed to set display on: %d\n", err);
+		goto poweroff;
+	}
+
+	/* T7: 10ms */
+	usleep_range(10000, 11000);
+
+	kingdisplay->prepared = true;
+
+	return 0;
+
+poweroff:
+	gpiod_set_value_cansleep(kingdisplay->enable_gpio, 0);
+
+	regulator_err = regulator_disable(kingdisplay->supply);
+	if (regulator_err)
+		dev_err(panel->dev, "failed to disable regulator: %d\n", regulator_err);
+
+	return err;
+}
+
+static int kingdisplay_panel_enable(struct drm_panel *panel)
+{
+	struct kingdisplay_panel *kingdisplay = to_kingdisplay_panel(panel);
+
+	if (kingdisplay->enabled)
+		return 0;
+
+	kingdisplay->enabled = true;
+
+	return 0;
+}
+
+static const struct drm_display_mode default_mode = {
+	.clock = 229000,
+	.hdisplay = 1536,
+	.hsync_start = 1536 + 100,
+	.hsync_end = 1536 + 100 + 24,
+	.htotal = 1536 + 100 + 24 + 100,
+	.vdisplay = 2048,
+	.vsync_start = 2048 + 95,
+	.vsync_end = 2048 + 95 + 2,
+	.vtotal = 2048 + 95 + 2 + 23,
+};
+
+static int kingdisplay_panel_get_modes(struct drm_panel *panel,
+				       struct drm_connector *connector)
+{
+	struct drm_display_mode *mode;
+
+	mode = drm_mode_duplicate(connector->dev, &default_mode);
+	if (!mode) {
+		dev_err(panel->dev, "failed to add mode %ux%u@%u\n",
+			default_mode.hdisplay, default_mode.vdisplay,
+			drm_mode_vrefresh(&default_mode));
+		return -ENOMEM;
+	}
+
+	drm_mode_set_name(mode);
+
+	drm_mode_probed_add(connector, mode);
+
+	connector->display_info.width_mm = 147;
+	connector->display_info.height_mm = 196;
+	connector->display_info.bpc = 8;
+
+	return 1;
+}
+
+static const struct drm_panel_funcs kingdisplay_panel_funcs = {
+	.disable = kingdisplay_panel_disable,
+	.unprepare = kingdisplay_panel_unprepare,
+	.prepare = kingdisplay_panel_prepare,
+	.enable = kingdisplay_panel_enable,
+	.get_modes = kingdisplay_panel_get_modes,
+};
+
+static const struct of_device_id kingdisplay_of_match[] = {
+	{ .compatible = "kingdisplay,kd097d04", },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, kingdisplay_of_match);
+
+static int kingdisplay_panel_add(struct kingdisplay_panel *kingdisplay)
+{
+	struct device *dev = &kingdisplay->link->dev;
+	int err;
+
+	kingdisplay->supply = devm_regulator_get(dev, "power");
+	if (IS_ERR(kingdisplay->supply))
+		return PTR_ERR(kingdisplay->supply);
+
+	kingdisplay->enable_gpio = devm_gpiod_get_optional(dev, "enable",
+							   GPIOD_OUT_HIGH);
+	if (IS_ERR(kingdisplay->enable_gpio)) {
+		err = PTR_ERR(kingdisplay->enable_gpio);
+		dev_dbg(dev, "failed to get enable gpio: %d\n", err);
+		kingdisplay->enable_gpio = NULL;
+	}
+
+	drm_panel_init(&kingdisplay->base, &kingdisplay->link->dev,
+		       &kingdisplay_panel_funcs, DRM_MODE_CONNECTOR_DSI);
+
+	err = drm_panel_of_backlight(&kingdisplay->base);
+	if (err)
+		return err;
+
+	drm_panel_add(&kingdisplay->base);
+
+	return 0;
+}
+
+static void kingdisplay_panel_del(struct kingdisplay_panel *kingdisplay)
+{
+	drm_panel_remove(&kingdisplay->base);
+}
+
+static int kingdisplay_panel_probe(struct mipi_dsi_device *dsi)
+{
+	struct kingdisplay_panel *kingdisplay;
+	int err;
+
+	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;
+
+	kingdisplay = devm_kzalloc(&dsi->dev, sizeof(*kingdisplay), GFP_KERNEL);
+	if (!kingdisplay)
+		return -ENOMEM;
+
+	mipi_dsi_set_drvdata(dsi, kingdisplay);
+	kingdisplay->link = dsi;
+
+	err = kingdisplay_panel_add(kingdisplay);
+	if (err < 0)
+		return err;
+
+	err = mipi_dsi_attach(dsi);
+	if (err < 0) {
+		kingdisplay_panel_del(kingdisplay);
+		return err;
+	}
+
+	return 0;
+}
+
+static void kingdisplay_panel_remove(struct mipi_dsi_device *dsi)
+{
+	struct kingdisplay_panel *kingdisplay = mipi_dsi_get_drvdata(dsi);
+	int err;
+
+	err = drm_panel_unprepare(&kingdisplay->base);
+	if (err < 0)
+		dev_err(&dsi->dev, "failed to unprepare panel: %d\n", err);
+
+	err = drm_panel_disable(&kingdisplay->base);
+	if (err < 0)
+		dev_err(&dsi->dev, "failed to disable panel: %d\n", err);
+
+	err = mipi_dsi_detach(dsi);
+	if (err < 0)
+		dev_err(&dsi->dev, "failed to detach from DSI host: %d\n", err);
+
+	kingdisplay_panel_del(kingdisplay);
+}
+
+static void kingdisplay_panel_shutdown(struct mipi_dsi_device *dsi)
+{
+	struct kingdisplay_panel *kingdisplay = mipi_dsi_get_drvdata(dsi);
+
+	drm_panel_unprepare(&kingdisplay->base);
+	drm_panel_disable(&kingdisplay->base);
+}
+
+static struct mipi_dsi_driver kingdisplay_panel_driver = {
+	.driver = {
+		.name = "panel-kingdisplay-kd097d04",
+		.of_match_table = kingdisplay_of_match,
+	},
+	.probe = kingdisplay_panel_probe,
+	.remove = kingdisplay_panel_remove,
+	.shutdown = kingdisplay_panel_shutdown,
+};
+module_mipi_dsi_driver(kingdisplay_panel_driver);
+
+MODULE_AUTHOR("Chris Zhong <zyw@rock-chips.com>");
+MODULE_AUTHOR("Nickey Yang <nickey.yang@rock-chips.com>");
+MODULE_DESCRIPTION("kingdisplay KD097D04 panel driver");
+MODULE_LICENSE("GPL v2");