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/sun4i/sun4i_tv.c | 647 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 647 insertions(+) create mode 100644 drivers/gpu/drm/sun4i/sun4i_tv.c (limited to 'drivers/gpu/drm/sun4i/sun4i_tv.c') diff --git a/drivers/gpu/drm/sun4i/sun4i_tv.c b/drivers/gpu/drm/sun4i/sun4i_tv.c new file mode 100644 index 000000000..c65f0a89b --- /dev/null +++ b/drivers/gpu/drm/sun4i/sun4i_tv.c @@ -0,0 +1,647 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (C) 2015 Free Electrons + * Copyright (C) 2015 NextThing Co + * + * Maxime Ripard + */ + +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include + +#include "sun4i_crtc.h" +#include "sun4i_drv.h" +#include "sunxi_engine.h" + +#define SUN4I_TVE_EN_REG 0x000 +#define SUN4I_TVE_EN_DAC_MAP_MASK GENMASK(19, 4) +#define SUN4I_TVE_EN_DAC_MAP(dac, out) (((out) & 0xf) << (dac + 1) * 4) +#define SUN4I_TVE_EN_ENABLE BIT(0) + +#define SUN4I_TVE_CFG0_REG 0x004 +#define SUN4I_TVE_CFG0_DAC_CONTROL_54M BIT(26) +#define SUN4I_TVE_CFG0_CORE_DATAPATH_54M BIT(25) +#define SUN4I_TVE_CFG0_CORE_CONTROL_54M BIT(24) +#define SUN4I_TVE_CFG0_YC_EN BIT(17) +#define SUN4I_TVE_CFG0_COMP_EN BIT(16) +#define SUN4I_TVE_CFG0_RES(x) ((x) & 0xf) +#define SUN4I_TVE_CFG0_RES_480i SUN4I_TVE_CFG0_RES(0) +#define SUN4I_TVE_CFG0_RES_576i SUN4I_TVE_CFG0_RES(1) + +#define SUN4I_TVE_DAC0_REG 0x008 +#define SUN4I_TVE_DAC0_CLOCK_INVERT BIT(24) +#define SUN4I_TVE_DAC0_LUMA(x) (((x) & 3) << 20) +#define SUN4I_TVE_DAC0_LUMA_0_4 SUN4I_TVE_DAC0_LUMA(3) +#define SUN4I_TVE_DAC0_CHROMA(x) (((x) & 3) << 18) +#define SUN4I_TVE_DAC0_CHROMA_0_75 SUN4I_TVE_DAC0_CHROMA(3) +#define SUN4I_TVE_DAC0_INTERNAL_DAC(x) (((x) & 3) << 16) +#define SUN4I_TVE_DAC0_INTERNAL_DAC_37_5_OHMS SUN4I_TVE_DAC0_INTERNAL_DAC(3) +#define SUN4I_TVE_DAC0_DAC_EN(dac) BIT(dac) + +#define SUN4I_TVE_NOTCH_REG 0x00c +#define SUN4I_TVE_NOTCH_DAC0_TO_DAC_DLY(dac, x) ((4 - (x)) << (dac * 3)) + +#define SUN4I_TVE_CHROMA_FREQ_REG 0x010 + +#define SUN4I_TVE_PORCH_REG 0x014 +#define SUN4I_TVE_PORCH_BACK(x) ((x) << 16) +#define SUN4I_TVE_PORCH_FRONT(x) (x) + +#define SUN4I_TVE_LINE_REG 0x01c +#define SUN4I_TVE_LINE_FIRST(x) ((x) << 16) +#define SUN4I_TVE_LINE_NUMBER(x) (x) + +#define SUN4I_TVE_LEVEL_REG 0x020 +#define SUN4I_TVE_LEVEL_BLANK(x) ((x) << 16) +#define SUN4I_TVE_LEVEL_BLACK(x) (x) + +#define SUN4I_TVE_DAC1_REG 0x024 +#define SUN4I_TVE_DAC1_AMPLITUDE(dac, x) ((x) << (dac * 8)) + +#define SUN4I_TVE_DETECT_STA_REG 0x038 +#define SUN4I_TVE_DETECT_STA_DAC(dac) BIT((dac * 8)) +#define SUN4I_TVE_DETECT_STA_UNCONNECTED 0 +#define SUN4I_TVE_DETECT_STA_CONNECTED 1 +#define SUN4I_TVE_DETECT_STA_GROUND 2 + +#define SUN4I_TVE_CB_CR_LVL_REG 0x10c +#define SUN4I_TVE_CB_CR_LVL_CR_BURST(x) ((x) << 8) +#define SUN4I_TVE_CB_CR_LVL_CB_BURST(x) (x) + +#define SUN4I_TVE_TINT_BURST_PHASE_REG 0x110 +#define SUN4I_TVE_TINT_BURST_PHASE_CHROMA(x) (x) + +#define SUN4I_TVE_BURST_WIDTH_REG 0x114 +#define SUN4I_TVE_BURST_WIDTH_BREEZEWAY(x) ((x) << 16) +#define SUN4I_TVE_BURST_WIDTH_BURST_WIDTH(x) ((x) << 8) +#define SUN4I_TVE_BURST_WIDTH_HSYNC_WIDTH(x) (x) + +#define SUN4I_TVE_CB_CR_GAIN_REG 0x118 +#define SUN4I_TVE_CB_CR_GAIN_CR(x) ((x) << 8) +#define SUN4I_TVE_CB_CR_GAIN_CB(x) (x) + +#define SUN4I_TVE_SYNC_VBI_REG 0x11c +#define SUN4I_TVE_SYNC_VBI_SYNC(x) ((x) << 16) +#define SUN4I_TVE_SYNC_VBI_VBLANK(x) (x) + +#define SUN4I_TVE_ACTIVE_LINE_REG 0x124 +#define SUN4I_TVE_ACTIVE_LINE(x) (x) + +#define SUN4I_TVE_CHROMA_REG 0x128 +#define SUN4I_TVE_CHROMA_COMP_GAIN(x) ((x) & 3) +#define SUN4I_TVE_CHROMA_COMP_GAIN_50 SUN4I_TVE_CHROMA_COMP_GAIN(2) + +#define SUN4I_TVE_12C_REG 0x12c +#define SUN4I_TVE_12C_NOTCH_WIDTH_WIDE BIT(8) +#define SUN4I_TVE_12C_COMP_YUV_EN BIT(0) + +#define SUN4I_TVE_RESYNC_REG 0x130 +#define SUN4I_TVE_RESYNC_FIELD BIT(31) +#define SUN4I_TVE_RESYNC_LINE(x) ((x) << 16) +#define SUN4I_TVE_RESYNC_PIXEL(x) (x) + +#define SUN4I_TVE_SLAVE_REG 0x134 + +#define SUN4I_TVE_WSS_DATA2_REG 0x244 + +struct color_gains { + u16 cb; + u16 cr; +}; + +struct burst_levels { + u16 cb; + u16 cr; +}; + +struct video_levels { + u16 black; + u16 blank; +}; + +struct resync_parameters { + bool field; + u16 line; + u16 pixel; +}; + +struct tv_mode { + char *name; + + u32 mode; + u32 chroma_freq; + u16 back_porch; + u16 front_porch; + u16 line_number; + u16 vblank_level; + + u32 hdisplay; + u16 hfront_porch; + u16 hsync_len; + u16 hback_porch; + + u32 vdisplay; + u16 vfront_porch; + u16 vsync_len; + u16 vback_porch; + + bool yc_en; + bool dac3_en; + bool dac_bit25_en; + + const struct color_gains *color_gains; + const struct burst_levels *burst_levels; + const struct video_levels *video_levels; + const struct resync_parameters *resync_params; +}; + +struct sun4i_tv { + struct drm_connector connector; + struct drm_encoder encoder; + + struct clk *clk; + struct regmap *regs; + struct reset_control *reset; + + struct sun4i_drv *drv; +}; + +static const struct video_levels ntsc_video_levels = { + .black = 282, .blank = 240, +}; + +static const struct video_levels pal_video_levels = { + .black = 252, .blank = 252, +}; + +static const struct burst_levels ntsc_burst_levels = { + .cb = 79, .cr = 0, +}; + +static const struct burst_levels pal_burst_levels = { + .cb = 40, .cr = 40, +}; + +static const struct color_gains ntsc_color_gains = { + .cb = 160, .cr = 160, +}; + +static const struct color_gains pal_color_gains = { + .cb = 224, .cr = 224, +}; + +static const struct resync_parameters ntsc_resync_parameters = { + .field = false, .line = 14, .pixel = 12, +}; + +static const struct resync_parameters pal_resync_parameters = { + .field = true, .line = 13, .pixel = 12, +}; + +static const struct tv_mode tv_modes[] = { + { + .name = "NTSC", + .mode = SUN4I_TVE_CFG0_RES_480i, + .chroma_freq = 0x21f07c1f, + .yc_en = true, + .dac3_en = true, + .dac_bit25_en = true, + + .back_porch = 118, + .front_porch = 32, + .line_number = 525, + + .hdisplay = 720, + .hfront_porch = 18, + .hsync_len = 2, + .hback_porch = 118, + + .vdisplay = 480, + .vfront_porch = 26, + .vsync_len = 2, + .vback_porch = 17, + + .vblank_level = 240, + + .color_gains = &ntsc_color_gains, + .burst_levels = &ntsc_burst_levels, + .video_levels = &ntsc_video_levels, + .resync_params = &ntsc_resync_parameters, + }, + { + .name = "PAL", + .mode = SUN4I_TVE_CFG0_RES_576i, + .chroma_freq = 0x2a098acb, + + .back_porch = 138, + .front_porch = 24, + .line_number = 625, + + .hdisplay = 720, + .hfront_porch = 3, + .hsync_len = 2, + .hback_porch = 139, + + .vdisplay = 576, + .vfront_porch = 28, + .vsync_len = 2, + .vback_porch = 19, + + .vblank_level = 252, + + .color_gains = &pal_color_gains, + .burst_levels = &pal_burst_levels, + .video_levels = &pal_video_levels, + .resync_params = &pal_resync_parameters, + }, +}; + +static inline struct sun4i_tv * +drm_encoder_to_sun4i_tv(struct drm_encoder *encoder) +{ + return container_of(encoder, struct sun4i_tv, + encoder); +} + +/* + * FIXME: If only the drm_display_mode private field was usable, this + * could go away... + * + * So far, it doesn't seem to be preserved when the mode is passed by + * to mode_set for some reason. + */ +static const struct tv_mode *sun4i_tv_find_tv_by_mode(const struct drm_display_mode *mode) +{ + int i; + + /* First try to identify the mode by name */ + for (i = 0; i < ARRAY_SIZE(tv_modes); i++) { + const struct tv_mode *tv_mode = &tv_modes[i]; + + DRM_DEBUG_DRIVER("Comparing mode %s vs %s", + mode->name, tv_mode->name); + + if (!strcmp(mode->name, tv_mode->name)) + return tv_mode; + } + + /* Then by number of lines */ + for (i = 0; i < ARRAY_SIZE(tv_modes); i++) { + const struct tv_mode *tv_mode = &tv_modes[i]; + + DRM_DEBUG_DRIVER("Comparing mode %s vs %s (X: %d vs %d)", + mode->name, tv_mode->name, + mode->vdisplay, tv_mode->vdisplay); + + if (mode->vdisplay == tv_mode->vdisplay) + return tv_mode; + } + + return NULL; +} + +static void sun4i_tv_mode_to_drm_mode(const struct tv_mode *tv_mode, + struct drm_display_mode *mode) +{ + DRM_DEBUG_DRIVER("Creating mode %s\n", mode->name); + + mode->type = DRM_MODE_TYPE_DRIVER; + mode->clock = 13500; + mode->flags = DRM_MODE_FLAG_INTERLACE; + + mode->hdisplay = tv_mode->hdisplay; + mode->hsync_start = mode->hdisplay + tv_mode->hfront_porch; + mode->hsync_end = mode->hsync_start + tv_mode->hsync_len; + mode->htotal = mode->hsync_end + tv_mode->hback_porch; + + mode->vdisplay = tv_mode->vdisplay; + mode->vsync_start = mode->vdisplay + tv_mode->vfront_porch; + mode->vsync_end = mode->vsync_start + tv_mode->vsync_len; + mode->vtotal = mode->vsync_end + tv_mode->vback_porch; +} + +static void sun4i_tv_disable(struct drm_encoder *encoder, + struct drm_atomic_state *state) +{ + struct sun4i_tv *tv = drm_encoder_to_sun4i_tv(encoder); + struct sun4i_crtc *crtc = drm_crtc_to_sun4i_crtc(encoder->crtc); + + DRM_DEBUG_DRIVER("Disabling the TV Output\n"); + + regmap_update_bits(tv->regs, SUN4I_TVE_EN_REG, + SUN4I_TVE_EN_ENABLE, + 0); + + sunxi_engine_disable_color_correction(crtc->engine); +} + +static void sun4i_tv_enable(struct drm_encoder *encoder, + struct drm_atomic_state *state) +{ + struct sun4i_tv *tv = drm_encoder_to_sun4i_tv(encoder); + struct sun4i_crtc *crtc = drm_crtc_to_sun4i_crtc(encoder->crtc); + struct drm_crtc_state *crtc_state = + drm_atomic_get_new_crtc_state(state, encoder->crtc); + struct drm_display_mode *mode = &crtc_state->mode; + const struct tv_mode *tv_mode = sun4i_tv_find_tv_by_mode(mode); + + DRM_DEBUG_DRIVER("Enabling the TV Output\n"); + + /* Enable and map the DAC to the output */ + regmap_update_bits(tv->regs, SUN4I_TVE_EN_REG, + SUN4I_TVE_EN_DAC_MAP_MASK, + SUN4I_TVE_EN_DAC_MAP(0, 1) | + SUN4I_TVE_EN_DAC_MAP(1, 2) | + SUN4I_TVE_EN_DAC_MAP(2, 3) | + SUN4I_TVE_EN_DAC_MAP(3, 4)); + + /* Set PAL settings */ + regmap_write(tv->regs, SUN4I_TVE_CFG0_REG, + tv_mode->mode | + (tv_mode->yc_en ? SUN4I_TVE_CFG0_YC_EN : 0) | + SUN4I_TVE_CFG0_COMP_EN | + SUN4I_TVE_CFG0_DAC_CONTROL_54M | + SUN4I_TVE_CFG0_CORE_DATAPATH_54M | + SUN4I_TVE_CFG0_CORE_CONTROL_54M); + + /* Configure the DAC for a composite output */ + regmap_write(tv->regs, SUN4I_TVE_DAC0_REG, + SUN4I_TVE_DAC0_DAC_EN(0) | + (tv_mode->dac3_en ? SUN4I_TVE_DAC0_DAC_EN(3) : 0) | + SUN4I_TVE_DAC0_INTERNAL_DAC_37_5_OHMS | + SUN4I_TVE_DAC0_CHROMA_0_75 | + SUN4I_TVE_DAC0_LUMA_0_4 | + SUN4I_TVE_DAC0_CLOCK_INVERT | + (tv_mode->dac_bit25_en ? BIT(25) : 0) | + BIT(30)); + + /* Configure the sample delay between DAC0 and the other DAC */ + regmap_write(tv->regs, SUN4I_TVE_NOTCH_REG, + SUN4I_TVE_NOTCH_DAC0_TO_DAC_DLY(1, 0) | + SUN4I_TVE_NOTCH_DAC0_TO_DAC_DLY(2, 0)); + + regmap_write(tv->regs, SUN4I_TVE_CHROMA_FREQ_REG, + tv_mode->chroma_freq); + + /* Set the front and back porch */ + regmap_write(tv->regs, SUN4I_TVE_PORCH_REG, + SUN4I_TVE_PORCH_BACK(tv_mode->back_porch) | + SUN4I_TVE_PORCH_FRONT(tv_mode->front_porch)); + + /* Set the lines setup */ + regmap_write(tv->regs, SUN4I_TVE_LINE_REG, + SUN4I_TVE_LINE_FIRST(22) | + SUN4I_TVE_LINE_NUMBER(tv_mode->line_number)); + + regmap_write(tv->regs, SUN4I_TVE_LEVEL_REG, + SUN4I_TVE_LEVEL_BLANK(tv_mode->video_levels->blank) | + SUN4I_TVE_LEVEL_BLACK(tv_mode->video_levels->black)); + + regmap_write(tv->regs, SUN4I_TVE_DAC1_REG, + SUN4I_TVE_DAC1_AMPLITUDE(0, 0x18) | + SUN4I_TVE_DAC1_AMPLITUDE(1, 0x18) | + SUN4I_TVE_DAC1_AMPLITUDE(2, 0x18) | + SUN4I_TVE_DAC1_AMPLITUDE(3, 0x18)); + + regmap_write(tv->regs, SUN4I_TVE_CB_CR_LVL_REG, + SUN4I_TVE_CB_CR_LVL_CB_BURST(tv_mode->burst_levels->cb) | + SUN4I_TVE_CB_CR_LVL_CR_BURST(tv_mode->burst_levels->cr)); + + /* Set burst width for a composite output */ + regmap_write(tv->regs, SUN4I_TVE_BURST_WIDTH_REG, + SUN4I_TVE_BURST_WIDTH_HSYNC_WIDTH(126) | + SUN4I_TVE_BURST_WIDTH_BURST_WIDTH(68) | + SUN4I_TVE_BURST_WIDTH_BREEZEWAY(22)); + + regmap_write(tv->regs, SUN4I_TVE_CB_CR_GAIN_REG, + SUN4I_TVE_CB_CR_GAIN_CB(tv_mode->color_gains->cb) | + SUN4I_TVE_CB_CR_GAIN_CR(tv_mode->color_gains->cr)); + + regmap_write(tv->regs, SUN4I_TVE_SYNC_VBI_REG, + SUN4I_TVE_SYNC_VBI_SYNC(0x10) | + SUN4I_TVE_SYNC_VBI_VBLANK(tv_mode->vblank_level)); + + regmap_write(tv->regs, SUN4I_TVE_ACTIVE_LINE_REG, + SUN4I_TVE_ACTIVE_LINE(1440)); + + /* Set composite chroma gain to 50 % */ + regmap_write(tv->regs, SUN4I_TVE_CHROMA_REG, + SUN4I_TVE_CHROMA_COMP_GAIN_50); + + regmap_write(tv->regs, SUN4I_TVE_12C_REG, + SUN4I_TVE_12C_COMP_YUV_EN | + SUN4I_TVE_12C_NOTCH_WIDTH_WIDE); + + regmap_write(tv->regs, SUN4I_TVE_RESYNC_REG, + SUN4I_TVE_RESYNC_PIXEL(tv_mode->resync_params->pixel) | + SUN4I_TVE_RESYNC_LINE(tv_mode->resync_params->line) | + (tv_mode->resync_params->field ? + SUN4I_TVE_RESYNC_FIELD : 0)); + + regmap_write(tv->regs, SUN4I_TVE_SLAVE_REG, 0); + + sunxi_engine_apply_color_correction(crtc->engine); + + regmap_update_bits(tv->regs, SUN4I_TVE_EN_REG, + SUN4I_TVE_EN_ENABLE, + SUN4I_TVE_EN_ENABLE); +} + +static const struct drm_encoder_helper_funcs sun4i_tv_helper_funcs = { + .atomic_disable = sun4i_tv_disable, + .atomic_enable = sun4i_tv_enable, +}; + +static int sun4i_tv_comp_get_modes(struct drm_connector *connector) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(tv_modes); i++) { + struct drm_display_mode *mode; + const struct tv_mode *tv_mode = &tv_modes[i]; + + mode = drm_mode_create(connector->dev); + if (!mode) { + DRM_ERROR("Failed to create a new display mode\n"); + return 0; + } + + strcpy(mode->name, tv_mode->name); + + sun4i_tv_mode_to_drm_mode(tv_mode, mode); + drm_mode_probed_add(connector, mode); + } + + return i; +} + +static const struct drm_connector_helper_funcs sun4i_tv_comp_connector_helper_funcs = { + .get_modes = sun4i_tv_comp_get_modes, +}; + +static const struct drm_connector_funcs sun4i_tv_comp_connector_funcs = { + .fill_modes = drm_helper_probe_single_connector_modes, + .destroy = drm_connector_cleanup, + .reset = drm_atomic_helper_connector_reset, + .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, + .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, +}; + +static const struct regmap_config sun4i_tv_regmap_config = { + .reg_bits = 32, + .val_bits = 32, + .reg_stride = 4, + .max_register = SUN4I_TVE_WSS_DATA2_REG, + .name = "tv-encoder", +}; + +static int sun4i_tv_bind(struct device *dev, struct device *master, + void *data) +{ + struct platform_device *pdev = to_platform_device(dev); + struct drm_device *drm = data; + struct sun4i_drv *drv = drm->dev_private; + struct sun4i_tv *tv; + void __iomem *regs; + int ret; + + tv = devm_kzalloc(dev, sizeof(*tv), GFP_KERNEL); + if (!tv) + return -ENOMEM; + tv->drv = drv; + dev_set_drvdata(dev, tv); + + regs = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(regs)) { + dev_err(dev, "Couldn't map the TV encoder registers\n"); + return PTR_ERR(regs); + } + + tv->regs = devm_regmap_init_mmio(dev, regs, + &sun4i_tv_regmap_config); + if (IS_ERR(tv->regs)) { + dev_err(dev, "Couldn't create the TV encoder regmap\n"); + return PTR_ERR(tv->regs); + } + + tv->reset = devm_reset_control_get(dev, NULL); + if (IS_ERR(tv->reset)) { + dev_err(dev, "Couldn't get our reset line\n"); + return PTR_ERR(tv->reset); + } + + ret = reset_control_deassert(tv->reset); + if (ret) { + dev_err(dev, "Couldn't deassert our reset line\n"); + return ret; + } + + tv->clk = devm_clk_get(dev, NULL); + if (IS_ERR(tv->clk)) { + dev_err(dev, "Couldn't get the TV encoder clock\n"); + ret = PTR_ERR(tv->clk); + goto err_assert_reset; + } + clk_prepare_enable(tv->clk); + + drm_encoder_helper_add(&tv->encoder, + &sun4i_tv_helper_funcs); + ret = drm_simple_encoder_init(drm, &tv->encoder, + DRM_MODE_ENCODER_TVDAC); + if (ret) { + dev_err(dev, "Couldn't initialise the TV encoder\n"); + goto err_disable_clk; + } + + tv->encoder.possible_crtcs = drm_of_find_possible_crtcs(drm, + dev->of_node); + if (!tv->encoder.possible_crtcs) { + ret = -EPROBE_DEFER; + goto err_disable_clk; + } + + drm_connector_helper_add(&tv->connector, + &sun4i_tv_comp_connector_helper_funcs); + ret = drm_connector_init(drm, &tv->connector, + &sun4i_tv_comp_connector_funcs, + DRM_MODE_CONNECTOR_Composite); + if (ret) { + dev_err(dev, + "Couldn't initialise the Composite connector\n"); + goto err_cleanup_encoder; + } + tv->connector.interlace_allowed = true; + + drm_connector_attach_encoder(&tv->connector, &tv->encoder); + + return 0; + +err_cleanup_encoder: + drm_encoder_cleanup(&tv->encoder); +err_disable_clk: + clk_disable_unprepare(tv->clk); +err_assert_reset: + reset_control_assert(tv->reset); + return ret; +} + +static void sun4i_tv_unbind(struct device *dev, struct device *master, + void *data) +{ + struct sun4i_tv *tv = dev_get_drvdata(dev); + + drm_connector_cleanup(&tv->connector); + drm_encoder_cleanup(&tv->encoder); + clk_disable_unprepare(tv->clk); + reset_control_assert(tv->reset); +} + +static const struct component_ops sun4i_tv_ops = { + .bind = sun4i_tv_bind, + .unbind = sun4i_tv_unbind, +}; + +static int sun4i_tv_probe(struct platform_device *pdev) +{ + return component_add(&pdev->dev, &sun4i_tv_ops); +} + +static int sun4i_tv_remove(struct platform_device *pdev) +{ + component_del(&pdev->dev, &sun4i_tv_ops); + + return 0; +} + +static const struct of_device_id sun4i_tv_of_table[] = { + { .compatible = "allwinner,sun4i-a10-tv-encoder" }, + { } +}; +MODULE_DEVICE_TABLE(of, sun4i_tv_of_table); + +static struct platform_driver sun4i_tv_platform_driver = { + .probe = sun4i_tv_probe, + .remove = sun4i_tv_remove, + .driver = { + .name = "sun4i-tve", + .of_match_table = sun4i_tv_of_table, + }, +}; +module_platform_driver(sun4i_tv_platform_driver); + +MODULE_AUTHOR("Maxime Ripard "); +MODULE_DESCRIPTION("Allwinner A10 TV Encoder Driver"); +MODULE_LICENSE("GPL"); -- cgit v1.2.3