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, 398 insertions, 0 deletions

diff --git a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
new file mode 100644
index 000000000..0ec2e4049
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
@@ -0,0 +1,398 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2015 MediaTek Inc.
+ */
+
+#include <drm/drm_fourcc.h>
+
+#include <linux/clk.h>
+#include <linux/component.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/of_irq.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/soc/mediatek/mtk-cmdq.h>
+
+#include "mtk_disp_drv.h"
+#include "mtk_drm_crtc.h"
+#include "mtk_drm_ddp_comp.h"
+
+#define DISP_REG_RDMA_INT_ENABLE		0x0000
+#define DISP_REG_RDMA_INT_STATUS		0x0004
+#define RDMA_TARGET_LINE_INT				BIT(5)
+#define RDMA_FIFO_UNDERFLOW_INT				BIT(4)
+#define RDMA_EOF_ABNORMAL_INT				BIT(3)
+#define RDMA_FRAME_END_INT				BIT(2)
+#define RDMA_FRAME_START_INT				BIT(1)
+#define RDMA_REG_UPDATE_INT				BIT(0)
+#define DISP_REG_RDMA_GLOBAL_CON		0x0010
+#define RDMA_ENGINE_EN					BIT(0)
+#define RDMA_MODE_MEMORY				BIT(1)
+#define DISP_REG_RDMA_SIZE_CON_0		0x0014
+#define RDMA_MATRIX_ENABLE				BIT(17)
+#define RDMA_MATRIX_INT_MTX_SEL				GENMASK(23, 20)
+#define RDMA_MATRIX_INT_MTX_BT601_to_RGB		(6 << 20)
+#define DISP_REG_RDMA_SIZE_CON_1		0x0018
+#define DISP_REG_RDMA_TARGET_LINE		0x001c
+#define DISP_RDMA_MEM_CON			0x0024
+#define MEM_MODE_INPUT_FORMAT_RGB565			(0x000 << 4)
+#define MEM_MODE_INPUT_FORMAT_RGB888			(0x001 << 4)
+#define MEM_MODE_INPUT_FORMAT_RGBA8888			(0x002 << 4)
+#define MEM_MODE_INPUT_FORMAT_ARGB8888			(0x003 << 4)
+#define MEM_MODE_INPUT_FORMAT_UYVY			(0x004 << 4)
+#define MEM_MODE_INPUT_FORMAT_YUYV			(0x005 << 4)
+#define MEM_MODE_INPUT_SWAP				BIT(8)
+#define DISP_RDMA_MEM_SRC_PITCH			0x002c
+#define DISP_RDMA_MEM_GMC_SETTING_0		0x0030
+#define DISP_REG_RDMA_FIFO_CON			0x0040
+#define RDMA_FIFO_UNDERFLOW_EN				BIT(31)
+#define RDMA_FIFO_PSEUDO_SIZE(bytes)			(((bytes) / 16) << 16)
+#define RDMA_OUTPUT_VALID_FIFO_THRESHOLD(bytes)		((bytes) / 16)
+#define RDMA_FIFO_SIZE(rdma)			((rdma)->data->fifo_size)
+#define DISP_RDMA_MEM_START_ADDR		0x0f00
+
+#define RDMA_MEM_GMC				0x40402020
+
+struct mtk_disp_rdma_data {
+	unsigned int fifo_size;
+};
+
+/*
+ * struct mtk_disp_rdma - DISP_RDMA driver structure
+ * @data: local driver data
+ */
+struct mtk_disp_rdma {
+	struct clk			*clk;
+	void __iomem			*regs;
+	struct cmdq_client_reg		cmdq_reg;
+	const struct mtk_disp_rdma_data	*data;
+	void				(*vblank_cb)(void *data);
+	void				*vblank_cb_data;
+	u32				fifo_size;
+};
+
+static irqreturn_t mtk_disp_rdma_irq_handler(int irq, void *dev_id)
+{
+	struct mtk_disp_rdma *priv = dev_id;
+
+	/* Clear frame completion interrupt */
+	writel(0x0, priv->regs + DISP_REG_RDMA_INT_STATUS);
+
+	if (!priv->vblank_cb)
+		return IRQ_NONE;
+
+	priv->vblank_cb(priv->vblank_cb_data);
+
+	return IRQ_HANDLED;
+}
+
+static void rdma_update_bits(struct device *dev, unsigned int reg,
+			     unsigned int mask, unsigned int val)
+{
+	struct mtk_disp_rdma *rdma = dev_get_drvdata(dev);
+	unsigned int tmp = readl(rdma->regs + reg);
+
+	tmp = (tmp & ~mask) | (val & mask);
+	writel(tmp, rdma->regs + reg);
+}
+
+void mtk_rdma_register_vblank_cb(struct device *dev,
+				 void (*vblank_cb)(void *),
+				 void *vblank_cb_data)
+{
+	struct mtk_disp_rdma *rdma = dev_get_drvdata(dev);
+
+	rdma->vblank_cb = vblank_cb;
+	rdma->vblank_cb_data = vblank_cb_data;
+}
+
+void mtk_rdma_unregister_vblank_cb(struct device *dev)
+{
+	struct mtk_disp_rdma *rdma = dev_get_drvdata(dev);
+
+	rdma->vblank_cb = NULL;
+	rdma->vblank_cb_data = NULL;
+}
+
+void mtk_rdma_enable_vblank(struct device *dev)
+{
+	rdma_update_bits(dev, DISP_REG_RDMA_INT_ENABLE, RDMA_FRAME_END_INT,
+			 RDMA_FRAME_END_INT);
+}
+
+void mtk_rdma_disable_vblank(struct device *dev)
+{
+	rdma_update_bits(dev, DISP_REG_RDMA_INT_ENABLE, RDMA_FRAME_END_INT, 0);
+}
+
+int mtk_rdma_clk_enable(struct device *dev)
+{
+	struct mtk_disp_rdma *rdma = dev_get_drvdata(dev);
+
+	return clk_prepare_enable(rdma->clk);
+}
+
+void mtk_rdma_clk_disable(struct device *dev)
+{
+	struct mtk_disp_rdma *rdma = dev_get_drvdata(dev);
+
+	clk_disable_unprepare(rdma->clk);
+}
+
+void mtk_rdma_start(struct device *dev)
+{
+	rdma_update_bits(dev, DISP_REG_RDMA_GLOBAL_CON, RDMA_ENGINE_EN,
+			 RDMA_ENGINE_EN);
+}
+
+void mtk_rdma_stop(struct device *dev)
+{
+	rdma_update_bits(dev, DISP_REG_RDMA_GLOBAL_CON, RDMA_ENGINE_EN, 0);
+}
+
+void mtk_rdma_config(struct device *dev, unsigned int width,
+		     unsigned int height, unsigned int vrefresh,
+		     unsigned int bpc, struct cmdq_pkt *cmdq_pkt)
+{
+	unsigned int threshold;
+	unsigned int reg;
+	struct mtk_disp_rdma *rdma = dev_get_drvdata(dev);
+	u32 rdma_fifo_size;
+
+	mtk_ddp_write_mask(cmdq_pkt, width, &rdma->cmdq_reg, rdma->regs,
+			   DISP_REG_RDMA_SIZE_CON_0, 0xfff);
+	mtk_ddp_write_mask(cmdq_pkt, height, &rdma->cmdq_reg, rdma->regs,
+			   DISP_REG_RDMA_SIZE_CON_1, 0xfffff);
+
+	if (rdma->fifo_size)
+		rdma_fifo_size = rdma->fifo_size;
+	else
+		rdma_fifo_size = RDMA_FIFO_SIZE(rdma);
+
+	/*
+	 * Enable FIFO underflow since DSI and DPI can't be blocked.
+	 * Keep the FIFO pseudo size reset default of 8 KiB. Set the
+	 * output threshold to 70% of max fifo size to make sure the
+	 * threhold will not overflow
+	 */
+	threshold = rdma_fifo_size * 7 / 10;
+	reg = RDMA_FIFO_UNDERFLOW_EN |
+	      RDMA_FIFO_PSEUDO_SIZE(rdma_fifo_size) |
+	      RDMA_OUTPUT_VALID_FIFO_THRESHOLD(threshold);
+	mtk_ddp_write(cmdq_pkt, reg, &rdma->cmdq_reg, rdma->regs, DISP_REG_RDMA_FIFO_CON);
+}
+
+static unsigned int rdma_fmt_convert(struct mtk_disp_rdma *rdma,
+				     unsigned int fmt)
+{
+	/* The return value in switch "MEM_MODE_INPUT_FORMAT_XXX"
+	 * is defined in mediatek HW data sheet.
+	 * The alphabet order in XXX is no relation to data
+	 * arrangement in memory.
+	 */
+	switch (fmt) {
+	default:
+	case DRM_FORMAT_RGB565:
+		return MEM_MODE_INPUT_FORMAT_RGB565;
+	case DRM_FORMAT_BGR565:
+		return MEM_MODE_INPUT_FORMAT_RGB565 | MEM_MODE_INPUT_SWAP;
+	case DRM_FORMAT_RGB888:
+		return MEM_MODE_INPUT_FORMAT_RGB888;
+	case DRM_FORMAT_BGR888:
+		return MEM_MODE_INPUT_FORMAT_RGB888 | MEM_MODE_INPUT_SWAP;
+	case DRM_FORMAT_RGBX8888:
+	case DRM_FORMAT_RGBA8888:
+		return MEM_MODE_INPUT_FORMAT_ARGB8888;
+	case DRM_FORMAT_BGRX8888:
+	case DRM_FORMAT_BGRA8888:
+		return MEM_MODE_INPUT_FORMAT_ARGB8888 | MEM_MODE_INPUT_SWAP;
+	case DRM_FORMAT_XRGB8888:
+	case DRM_FORMAT_ARGB8888:
+		return MEM_MODE_INPUT_FORMAT_RGBA8888;
+	case DRM_FORMAT_XBGR8888:
+	case DRM_FORMAT_ABGR8888:
+		return MEM_MODE_INPUT_FORMAT_RGBA8888 | MEM_MODE_INPUT_SWAP;
+	case DRM_FORMAT_UYVY:
+		return MEM_MODE_INPUT_FORMAT_UYVY;
+	case DRM_FORMAT_YUYV:
+		return MEM_MODE_INPUT_FORMAT_YUYV;
+	}
+}
+
+unsigned int mtk_rdma_layer_nr(struct device *dev)
+{
+	return 1;
+}
+
+void mtk_rdma_layer_config(struct device *dev, unsigned int idx,
+			   struct mtk_plane_state *state,
+			   struct cmdq_pkt *cmdq_pkt)
+{
+	struct mtk_disp_rdma *rdma = dev_get_drvdata(dev);
+	struct mtk_plane_pending_state *pending = &state->pending;
+	unsigned int addr = pending->addr;
+	unsigned int pitch = pending->pitch & 0xffff;
+	unsigned int fmt = pending->format;
+	unsigned int con;
+
+	con = rdma_fmt_convert(rdma, fmt);
+	mtk_ddp_write_relaxed(cmdq_pkt, con, &rdma->cmdq_reg, rdma->regs, DISP_RDMA_MEM_CON);
+
+	if (fmt == DRM_FORMAT_UYVY || fmt == DRM_FORMAT_YUYV) {
+		mtk_ddp_write_mask(cmdq_pkt, RDMA_MATRIX_ENABLE, &rdma->cmdq_reg, rdma->regs,
+				   DISP_REG_RDMA_SIZE_CON_0,
+				   RDMA_MATRIX_ENABLE);
+		mtk_ddp_write_mask(cmdq_pkt, RDMA_MATRIX_INT_MTX_BT601_to_RGB,
+				   &rdma->cmdq_reg, rdma->regs, DISP_REG_RDMA_SIZE_CON_0,
+				   RDMA_MATRIX_INT_MTX_SEL);
+	} else {
+		mtk_ddp_write_mask(cmdq_pkt, 0, &rdma->cmdq_reg, rdma->regs,
+				   DISP_REG_RDMA_SIZE_CON_0,
+				   RDMA_MATRIX_ENABLE);
+	}
+	mtk_ddp_write_relaxed(cmdq_pkt, addr, &rdma->cmdq_reg, rdma->regs,
+			      DISP_RDMA_MEM_START_ADDR);
+	mtk_ddp_write_relaxed(cmdq_pkt, pitch, &rdma->cmdq_reg, rdma->regs,
+			      DISP_RDMA_MEM_SRC_PITCH);
+	mtk_ddp_write(cmdq_pkt, RDMA_MEM_GMC, &rdma->cmdq_reg, rdma->regs,
+		      DISP_RDMA_MEM_GMC_SETTING_0);
+	mtk_ddp_write_mask(cmdq_pkt, RDMA_MODE_MEMORY, &rdma->cmdq_reg, rdma->regs,
+			   DISP_REG_RDMA_GLOBAL_CON, RDMA_MODE_MEMORY);
+
+}
+
+static int mtk_disp_rdma_bind(struct device *dev, struct device *master,
+			      void *data)
+{
+	return 0;
+
+}
+
+static void mtk_disp_rdma_unbind(struct device *dev, struct device *master,
+				 void *data)
+{
+}
+
+static const struct component_ops mtk_disp_rdma_component_ops = {
+	.bind	= mtk_disp_rdma_bind,
+	.unbind = mtk_disp_rdma_unbind,
+};
+
+static int mtk_disp_rdma_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct mtk_disp_rdma *priv;
+	struct resource *res;
+	int irq;
+	int ret;
+
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0)
+		return irq;
+
+	priv->clk = devm_clk_get(dev, NULL);
+	if (IS_ERR(priv->clk)) {
+		dev_err(dev, "failed to get rdma clk\n");
+		return PTR_ERR(priv->clk);
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	priv->regs = devm_ioremap_resource(dev, res);
+	if (IS_ERR(priv->regs)) {
+		dev_err(dev, "failed to ioremap rdma\n");
+		return PTR_ERR(priv->regs);
+	}
+#if IS_REACHABLE(CONFIG_MTK_CMDQ)
+	ret = cmdq_dev_get_client_reg(dev, &priv->cmdq_reg, 0);
+	if (ret)
+		dev_dbg(dev, "get mediatek,gce-client-reg fail!\n");
+#endif
+
+	if (of_find_property(dev->of_node, "mediatek,rdma-fifo-size", &ret)) {
+		ret = of_property_read_u32(dev->of_node,
+					   "mediatek,rdma-fifo-size",
+					   &priv->fifo_size);
+		if (ret) {
+			dev_err(dev, "Failed to get rdma fifo size\n");
+			return ret;
+		}
+	}
+
+	/* Disable and clear pending interrupts */
+	writel(0x0, priv->regs + DISP_REG_RDMA_INT_ENABLE);
+	writel(0x0, priv->regs + DISP_REG_RDMA_INT_STATUS);
+
+	ret = devm_request_irq(dev, irq, mtk_disp_rdma_irq_handler,
+			       IRQF_TRIGGER_NONE, dev_name(dev), priv);
+	if (ret < 0) {
+		dev_err(dev, "Failed to request irq %d: %d\n", irq, ret);
+		return ret;
+	}
+
+	priv->data = of_device_get_match_data(dev);
+
+	platform_set_drvdata(pdev, priv);
+
+	pm_runtime_enable(dev);
+
+	ret = component_add(dev, &mtk_disp_rdma_component_ops);
+	if (ret) {
+		pm_runtime_disable(dev);
+		dev_err(dev, "Failed to add component: %d\n", ret);
+	}
+
+	return ret;
+}
+
+static int mtk_disp_rdma_remove(struct platform_device *pdev)
+{
+	component_del(&pdev->dev, &mtk_disp_rdma_component_ops);
+
+	pm_runtime_disable(&pdev->dev);
+
+	return 0;
+}
+
+static const struct mtk_disp_rdma_data mt2701_rdma_driver_data = {
+	.fifo_size = SZ_4K,
+};
+
+static const struct mtk_disp_rdma_data mt8173_rdma_driver_data = {
+	.fifo_size = SZ_8K,
+};
+
+static const struct mtk_disp_rdma_data mt8183_rdma_driver_data = {
+	.fifo_size = 5 * SZ_1K,
+};
+
+static const struct mtk_disp_rdma_data mt8195_rdma_driver_data = {
+	.fifo_size = 1920,
+};
+
+static const struct of_device_id mtk_disp_rdma_driver_dt_match[] = {
+	{ .compatible = "mediatek,mt2701-disp-rdma",
+	  .data = &mt2701_rdma_driver_data},
+	{ .compatible = "mediatek,mt8173-disp-rdma",
+	  .data = &mt8173_rdma_driver_data},
+	{ .compatible = "mediatek,mt8183-disp-rdma",
+	  .data = &mt8183_rdma_driver_data},
+	{ .compatible = "mediatek,mt8195-disp-rdma",
+	  .data = &mt8195_rdma_driver_data},
+	{},
+};
+MODULE_DEVICE_TABLE(of, mtk_disp_rdma_driver_dt_match);
+
+struct platform_driver mtk_disp_rdma_driver = {
+	.probe		= mtk_disp_rdma_probe,
+	.remove		= mtk_disp_rdma_remove,
+	.driver		= {
+		.name	= "mediatek-disp-rdma",
+		.owner	= THIS_MODULE,
+		.of_match_table = mtk_disp_rdma_driver_dt_match,
+	},
+};