From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 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(). ... --- drivers/gpu/drm/msm/disp/mdp5/mdp5_encoder.c | 370 +++++++++++++++++++++++++++ 1 file changed, 370 insertions(+) create mode 100644 drivers/gpu/drm/msm/disp/mdp5/mdp5_encoder.c (limited to 'drivers/gpu/drm/msm/disp/mdp5/mdp5_encoder.c') diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_encoder.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_encoder.c new file mode 100644 index 000000000..79d67c495 --- /dev/null +++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_encoder.c @@ -0,0 +1,370 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2014, The Linux Foundation. All rights reserved. + * Copyright (C) 2013 Red Hat + * Author: Rob Clark + */ + +#include +#include + +#include "mdp5_kms.h" + +static struct mdp5_kms *get_kms(struct drm_encoder *encoder) +{ + struct msm_drm_private *priv = encoder->dev->dev_private; + return to_mdp5_kms(to_mdp_kms(priv->kms)); +} + +static void mdp5_encoder_destroy(struct drm_encoder *encoder) +{ + struct mdp5_encoder *mdp5_encoder = to_mdp5_encoder(encoder); + drm_encoder_cleanup(encoder); + kfree(mdp5_encoder); +} + +static const struct drm_encoder_funcs mdp5_encoder_funcs = { + .destroy = mdp5_encoder_destroy, +}; + +static void mdp5_vid_encoder_mode_set(struct drm_encoder *encoder, + struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ + struct mdp5_encoder *mdp5_encoder = to_mdp5_encoder(encoder); + struct mdp5_kms *mdp5_kms = get_kms(encoder); + struct drm_device *dev = encoder->dev; + struct drm_connector *connector; + int intf = mdp5_encoder->intf->num; + uint32_t dtv_hsync_skew, vsync_period, vsync_len, ctrl_pol; + uint32_t display_v_start, display_v_end; + uint32_t hsync_start_x, hsync_end_x; + uint32_t format = 0x2100; + unsigned long flags; + + mode = adjusted_mode; + + DBG("set mode: " DRM_MODE_FMT, DRM_MODE_ARG(mode)); + + ctrl_pol = 0; + + /* DSI controller cannot handle active-low sync signals. */ + if (mdp5_encoder->intf->type != INTF_DSI) { + if (mode->flags & DRM_MODE_FLAG_NHSYNC) + ctrl_pol |= MDP5_INTF_POLARITY_CTL_HSYNC_LOW; + if (mode->flags & DRM_MODE_FLAG_NVSYNC) + ctrl_pol |= MDP5_INTF_POLARITY_CTL_VSYNC_LOW; + } + /* probably need to get DATA_EN polarity from panel.. */ + + dtv_hsync_skew = 0; /* get this from panel? */ + + /* Get color format from panel, default is 8bpc */ + list_for_each_entry(connector, &dev->mode_config.connector_list, head) { + if (connector->encoder == encoder) { + switch (connector->display_info.bpc) { + case 4: + format |= 0; + break; + case 5: + format |= 0x15; + break; + case 6: + format |= 0x2A; + break; + case 8: + default: + format |= 0x3F; + break; + } + break; + } + } + + hsync_start_x = (mode->htotal - mode->hsync_start); + hsync_end_x = mode->htotal - (mode->hsync_start - mode->hdisplay) - 1; + + vsync_period = mode->vtotal * mode->htotal; + vsync_len = (mode->vsync_end - mode->vsync_start) * mode->htotal; + display_v_start = (mode->vtotal - mode->vsync_start) * mode->htotal + dtv_hsync_skew; + display_v_end = vsync_period - ((mode->vsync_start - mode->vdisplay) * mode->htotal) + dtv_hsync_skew - 1; + + /* + * For edp only: + * DISPLAY_V_START = (VBP * HCYCLE) + HBP + * DISPLAY_V_END = (VBP + VACTIVE) * HCYCLE - 1 - HFP + */ + if (mdp5_encoder->intf->type == INTF_eDP) { + display_v_start += mode->htotal - mode->hsync_start; + display_v_end -= mode->hsync_start - mode->hdisplay; + } + + spin_lock_irqsave(&mdp5_encoder->intf_lock, flags); + + mdp5_write(mdp5_kms, REG_MDP5_INTF_HSYNC_CTL(intf), + MDP5_INTF_HSYNC_CTL_PULSEW(mode->hsync_end - mode->hsync_start) | + MDP5_INTF_HSYNC_CTL_PERIOD(mode->htotal)); + mdp5_write(mdp5_kms, REG_MDP5_INTF_VSYNC_PERIOD_F0(intf), vsync_period); + mdp5_write(mdp5_kms, REG_MDP5_INTF_VSYNC_LEN_F0(intf), vsync_len); + mdp5_write(mdp5_kms, REG_MDP5_INTF_DISPLAY_HCTL(intf), + MDP5_INTF_DISPLAY_HCTL_START(hsync_start_x) | + MDP5_INTF_DISPLAY_HCTL_END(hsync_end_x)); + mdp5_write(mdp5_kms, REG_MDP5_INTF_DISPLAY_VSTART_F0(intf), display_v_start); + mdp5_write(mdp5_kms, REG_MDP5_INTF_DISPLAY_VEND_F0(intf), display_v_end); + mdp5_write(mdp5_kms, REG_MDP5_INTF_BORDER_COLOR(intf), 0); + mdp5_write(mdp5_kms, REG_MDP5_INTF_UNDERFLOW_COLOR(intf), 0xff); + mdp5_write(mdp5_kms, REG_MDP5_INTF_HSYNC_SKEW(intf), dtv_hsync_skew); + mdp5_write(mdp5_kms, REG_MDP5_INTF_POLARITY_CTL(intf), ctrl_pol); + mdp5_write(mdp5_kms, REG_MDP5_INTF_ACTIVE_HCTL(intf), + MDP5_INTF_ACTIVE_HCTL_START(0) | + MDP5_INTF_ACTIVE_HCTL_END(0)); + mdp5_write(mdp5_kms, REG_MDP5_INTF_ACTIVE_VSTART_F0(intf), 0); + mdp5_write(mdp5_kms, REG_MDP5_INTF_ACTIVE_VEND_F0(intf), 0); + mdp5_write(mdp5_kms, REG_MDP5_INTF_PANEL_FORMAT(intf), format); + mdp5_write(mdp5_kms, REG_MDP5_INTF_FRAME_LINE_COUNT_EN(intf), 0x3); /* frame+line? */ + + spin_unlock_irqrestore(&mdp5_encoder->intf_lock, flags); + + mdp5_crtc_set_pipeline(encoder->crtc); +} + +static void mdp5_vid_encoder_disable(struct drm_encoder *encoder) +{ + struct mdp5_encoder *mdp5_encoder = to_mdp5_encoder(encoder); + struct mdp5_kms *mdp5_kms = get_kms(encoder); + struct mdp5_ctl *ctl = mdp5_encoder->ctl; + struct mdp5_pipeline *pipeline = mdp5_crtc_get_pipeline(encoder->crtc); + struct mdp5_hw_mixer *mixer = mdp5_crtc_get_mixer(encoder->crtc); + struct mdp5_interface *intf = mdp5_encoder->intf; + int intfn = mdp5_encoder->intf->num; + unsigned long flags; + + if (WARN_ON(!mdp5_encoder->enabled)) + return; + + mdp5_ctl_set_encoder_state(ctl, pipeline, false); + + spin_lock_irqsave(&mdp5_encoder->intf_lock, flags); + mdp5_write(mdp5_kms, REG_MDP5_INTF_TIMING_ENGINE_EN(intfn), 0); + spin_unlock_irqrestore(&mdp5_encoder->intf_lock, flags); + mdp5_ctl_commit(ctl, pipeline, mdp_ctl_flush_mask_encoder(intf), true); + + /* + * Wait for a vsync so we know the ENABLE=0 latched before + * the (connector) source of the vsync's gets disabled, + * otherwise we end up in a funny state if we re-enable + * before the disable latches, which results that some of + * the settings changes for the new modeset (like new + * scanout buffer) don't latch properly.. + */ + mdp_irq_wait(&mdp5_kms->base, intf2vblank(mixer, intf)); + + mdp5_encoder->enabled = false; +} + +static void mdp5_vid_encoder_enable(struct drm_encoder *encoder) +{ + struct mdp5_encoder *mdp5_encoder = to_mdp5_encoder(encoder); + struct mdp5_kms *mdp5_kms = get_kms(encoder); + struct mdp5_ctl *ctl = mdp5_encoder->ctl; + struct mdp5_interface *intf = mdp5_encoder->intf; + struct mdp5_pipeline *pipeline = mdp5_crtc_get_pipeline(encoder->crtc); + int intfn = intf->num; + unsigned long flags; + + if (WARN_ON(mdp5_encoder->enabled)) + return; + + spin_lock_irqsave(&mdp5_encoder->intf_lock, flags); + mdp5_write(mdp5_kms, REG_MDP5_INTF_TIMING_ENGINE_EN(intfn), 1); + spin_unlock_irqrestore(&mdp5_encoder->intf_lock, flags); + mdp5_ctl_commit(ctl, pipeline, mdp_ctl_flush_mask_encoder(intf), true); + + mdp5_ctl_set_encoder_state(ctl, pipeline, true); + + mdp5_encoder->enabled = true; +} + +static void mdp5_encoder_mode_set(struct drm_encoder *encoder, + struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ + struct mdp5_encoder *mdp5_encoder = to_mdp5_encoder(encoder); + struct mdp5_interface *intf = mdp5_encoder->intf; + + if (intf->mode == MDP5_INTF_DSI_MODE_COMMAND) + mdp5_cmd_encoder_mode_set(encoder, mode, adjusted_mode); + else + mdp5_vid_encoder_mode_set(encoder, mode, adjusted_mode); +} + +static void mdp5_encoder_disable(struct drm_encoder *encoder) +{ + struct mdp5_encoder *mdp5_encoder = to_mdp5_encoder(encoder); + struct mdp5_interface *intf = mdp5_encoder->intf; + + if (intf->mode == MDP5_INTF_DSI_MODE_COMMAND) + mdp5_cmd_encoder_disable(encoder); + else + mdp5_vid_encoder_disable(encoder); +} + +static void mdp5_encoder_enable(struct drm_encoder *encoder) +{ + struct mdp5_encoder *mdp5_encoder = to_mdp5_encoder(encoder); + struct mdp5_interface *intf = mdp5_encoder->intf; + /* this isn't right I think */ + struct drm_crtc_state *cstate = encoder->crtc->state; + + mdp5_encoder_mode_set(encoder, &cstate->mode, &cstate->adjusted_mode); + + if (intf->mode == MDP5_INTF_DSI_MODE_COMMAND) + mdp5_cmd_encoder_enable(encoder); + else + mdp5_vid_encoder_enable(encoder); +} + +static int mdp5_encoder_atomic_check(struct drm_encoder *encoder, + struct drm_crtc_state *crtc_state, + struct drm_connector_state *conn_state) +{ + struct mdp5_encoder *mdp5_encoder = to_mdp5_encoder(encoder); + struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc_state); + struct mdp5_interface *intf = mdp5_encoder->intf; + struct mdp5_ctl *ctl = mdp5_encoder->ctl; + + mdp5_cstate->ctl = ctl; + mdp5_cstate->pipeline.intf = intf; + + /* + * This is a bit awkward, but we want to flush the CTL and hit the + * START bit at most once for an atomic update. In the non-full- + * modeset case, this is done from crtc->atomic_flush(), but that + * is too early in the case of full modeset, in which case we + * defer to encoder->enable(). But we need to *know* whether + * encoder->enable() will be called to do this: + */ + if (drm_atomic_crtc_needs_modeset(crtc_state)) + mdp5_cstate->defer_start = true; + + return 0; +} + +static const struct drm_encoder_helper_funcs mdp5_encoder_helper_funcs = { + .disable = mdp5_encoder_disable, + .enable = mdp5_encoder_enable, + .atomic_check = mdp5_encoder_atomic_check, +}; + +int mdp5_encoder_get_linecount(struct drm_encoder *encoder) +{ + struct mdp5_encoder *mdp5_encoder = to_mdp5_encoder(encoder); + struct mdp5_kms *mdp5_kms = get_kms(encoder); + int intf = mdp5_encoder->intf->num; + + return mdp5_read(mdp5_kms, REG_MDP5_INTF_LINE_COUNT(intf)); +} + +u32 mdp5_encoder_get_framecount(struct drm_encoder *encoder) +{ + struct mdp5_encoder *mdp5_encoder = to_mdp5_encoder(encoder); + struct mdp5_kms *mdp5_kms = get_kms(encoder); + int intf = mdp5_encoder->intf->num; + + return mdp5_read(mdp5_kms, REG_MDP5_INTF_FRAME_COUNT(intf)); +} + +int mdp5_vid_encoder_set_split_display(struct drm_encoder *encoder, + struct drm_encoder *slave_encoder) +{ + struct mdp5_encoder *mdp5_encoder = to_mdp5_encoder(encoder); + struct mdp5_encoder *mdp5_slave_enc = to_mdp5_encoder(slave_encoder); + struct mdp5_kms *mdp5_kms; + struct device *dev; + int intf_num; + u32 data = 0; + + if (!encoder || !slave_encoder) + return -EINVAL; + + mdp5_kms = get_kms(encoder); + intf_num = mdp5_encoder->intf->num; + + /* Switch slave encoder's TimingGen Sync mode, + * to use the master's enable signal for the slave encoder. + */ + if (intf_num == 1) + data |= MDP5_SPLIT_DPL_LOWER_INTF2_TG_SYNC; + else if (intf_num == 2) + data |= MDP5_SPLIT_DPL_LOWER_INTF1_TG_SYNC; + else + return -EINVAL; + + dev = &mdp5_kms->pdev->dev; + /* Make sure clocks are on when connectors calling this function. */ + pm_runtime_get_sync(dev); + + /* Dumb Panel, Sync mode */ + mdp5_write(mdp5_kms, REG_MDP5_SPLIT_DPL_UPPER, 0); + mdp5_write(mdp5_kms, REG_MDP5_SPLIT_DPL_LOWER, data); + mdp5_write(mdp5_kms, REG_MDP5_SPLIT_DPL_EN, 1); + + mdp5_ctl_pair(mdp5_encoder->ctl, mdp5_slave_enc->ctl, true); + + pm_runtime_put_sync(dev); + + return 0; +} + +void mdp5_encoder_set_intf_mode(struct drm_encoder *encoder, bool cmd_mode) +{ + struct mdp5_encoder *mdp5_encoder = to_mdp5_encoder(encoder); + struct mdp5_interface *intf = mdp5_encoder->intf; + + /* TODO: Expand this to set writeback modes too */ + if (cmd_mode) { + WARN_ON(intf->type != INTF_DSI); + intf->mode = MDP5_INTF_DSI_MODE_COMMAND; + } else { + if (intf->type == INTF_DSI) + intf->mode = MDP5_INTF_DSI_MODE_VIDEO; + else + intf->mode = MDP5_INTF_MODE_NONE; + } +} + +/* initialize encoder */ +struct drm_encoder *mdp5_encoder_init(struct drm_device *dev, + struct mdp5_interface *intf, + struct mdp5_ctl *ctl) +{ + struct drm_encoder *encoder = NULL; + struct mdp5_encoder *mdp5_encoder; + int enc_type = (intf->type == INTF_DSI) ? + DRM_MODE_ENCODER_DSI : DRM_MODE_ENCODER_TMDS; + int ret; + + mdp5_encoder = kzalloc(sizeof(*mdp5_encoder), GFP_KERNEL); + if (!mdp5_encoder) { + ret = -ENOMEM; + goto fail; + } + + encoder = &mdp5_encoder->base; + mdp5_encoder->ctl = ctl; + mdp5_encoder->intf = intf; + + spin_lock_init(&mdp5_encoder->intf_lock); + + drm_encoder_init(dev, encoder, &mdp5_encoder_funcs, enc_type, NULL); + + drm_encoder_helper_add(encoder, &mdp5_encoder_helper_funcs); + + return encoder; + +fail: + if (encoder) + mdp5_encoder_destroy(encoder); + + return ERR_PTR(ret); +} -- cgit v1.2.3