diff options
author | 2023-02-21 18:24:12 -0800 | |
---|---|---|
committer | 2023-02-21 18:24:12 -0800 | |
commit | 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch) | |
tree | cc5c2d0a898769fd59549594fedb3ee6f84e59a0 /drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c | |
download | linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.zip |
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().
...
Diffstat (limited to 'drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c')
-rw-r--r-- | drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c | 737 |
1 files changed, 737 insertions, 0 deletions
diff --git a/drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c b/drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c new file mode 100644 index 000000000..ca53b5e9f --- /dev/null +++ b/drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c @@ -0,0 +1,737 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (c) 2018 Jernej Skrabec <jernej.skrabec@siol.net> + */ + +#include <linux/delay.h> +#include <linux/of_address.h> +#include <linux/of_platform.h> + +#include "sun8i_dw_hdmi.h" + +/* + * Address can be actually any value. Here is set to same value as + * it is set in BSP driver. + */ +#define I2C_ADDR 0x69 + +static const struct dw_hdmi_mpll_config sun50i_h6_mpll_cfg[] = { + { + 30666000, { + { 0x00b3, 0x0000 }, + { 0x2153, 0x0000 }, + { 0x40f3, 0x0000 }, + }, + }, { + 36800000, { + { 0x00b3, 0x0000 }, + { 0x2153, 0x0000 }, + { 0x40a2, 0x0001 }, + }, + }, { + 46000000, { + { 0x00b3, 0x0000 }, + { 0x2142, 0x0001 }, + { 0x40a2, 0x0001 }, + }, + }, { + 61333000, { + { 0x0072, 0x0001 }, + { 0x2142, 0x0001 }, + { 0x40a2, 0x0001 }, + }, + }, { + 73600000, { + { 0x0072, 0x0001 }, + { 0x2142, 0x0001 }, + { 0x4061, 0x0002 }, + }, + }, { + 92000000, { + { 0x0072, 0x0001 }, + { 0x2145, 0x0002 }, + { 0x4061, 0x0002 }, + }, + }, { + 122666000, { + { 0x0051, 0x0002 }, + { 0x2145, 0x0002 }, + { 0x4061, 0x0002 }, + }, + }, { + 147200000, { + { 0x0051, 0x0002 }, + { 0x2145, 0x0002 }, + { 0x4064, 0x0003 }, + }, + }, { + 184000000, { + { 0x0051, 0x0002 }, + { 0x214c, 0x0003 }, + { 0x4064, 0x0003 }, + }, + }, { + 226666000, { + { 0x0040, 0x0003 }, + { 0x214c, 0x0003 }, + { 0x4064, 0x0003 }, + }, + }, { + 272000000, { + { 0x0040, 0x0003 }, + { 0x214c, 0x0003 }, + { 0x5a64, 0x0003 }, + }, + }, { + 340000000, { + { 0x0040, 0x0003 }, + { 0x3b4c, 0x0003 }, + { 0x5a64, 0x0003 }, + }, + }, { + 594000000, { + { 0x1a40, 0x0003 }, + { 0x3b4c, 0x0003 }, + { 0x5a64, 0x0003 }, + }, + }, { + ~0UL, { + { 0x0000, 0x0000 }, + { 0x0000, 0x0000 }, + { 0x0000, 0x0000 }, + }, + } +}; + +static const struct dw_hdmi_curr_ctrl sun50i_h6_cur_ctr[] = { + /* pixelclk bpp8 bpp10 bpp12 */ + { 27000000, { 0x0012, 0x0000, 0x0000 }, }, + { 74250000, { 0x0013, 0x001a, 0x001b }, }, + { 148500000, { 0x0019, 0x0033, 0x0034 }, }, + { 297000000, { 0x0019, 0x001b, 0x001b }, }, + { 594000000, { 0x0010, 0x001b, 0x001b }, }, + { ~0UL, { 0x0000, 0x0000, 0x0000 }, } +}; + +static const struct dw_hdmi_phy_config sun50i_h6_phy_config[] = { + /*pixelclk symbol term vlev*/ + { 27000000, 0x8009, 0x0007, 0x02b0 }, + { 74250000, 0x8009, 0x0006, 0x022d }, + { 148500000, 0x8029, 0x0006, 0x0270 }, + { 297000000, 0x8039, 0x0005, 0x01ab }, + { 594000000, 0x8029, 0x0000, 0x008a }, + { ~0UL, 0x0000, 0x0000, 0x0000} +}; + +static void sun8i_hdmi_phy_set_polarity(struct sun8i_hdmi_phy *phy, + const struct drm_display_mode *mode) +{ + u32 val = 0; + + if (mode->flags & DRM_MODE_FLAG_NHSYNC) + val |= SUN8I_HDMI_PHY_DBG_CTRL_POL_NHSYNC; + + if (mode->flags & DRM_MODE_FLAG_NVSYNC) + val |= SUN8I_HDMI_PHY_DBG_CTRL_POL_NVSYNC; + + regmap_update_bits(phy->regs, SUN8I_HDMI_PHY_DBG_CTRL_REG, + SUN8I_HDMI_PHY_DBG_CTRL_POL_MASK, val); +}; + +static int sun8i_a83t_hdmi_phy_config(struct dw_hdmi *hdmi, void *data, + const struct drm_display_info *display, + const struct drm_display_mode *mode) +{ + unsigned int clk_rate = mode->crtc_clock * 1000; + struct sun8i_hdmi_phy *phy = data; + + sun8i_hdmi_phy_set_polarity(phy, mode); + + regmap_update_bits(phy->regs, SUN8I_HDMI_PHY_REXT_CTRL_REG, + SUN8I_HDMI_PHY_REXT_CTRL_REXT_EN, + SUN8I_HDMI_PHY_REXT_CTRL_REXT_EN); + + /* power down */ + dw_hdmi_phy_gen2_txpwron(hdmi, 0); + dw_hdmi_phy_gen2_pddq(hdmi, 1); + + dw_hdmi_phy_gen2_reset(hdmi); + + dw_hdmi_phy_gen2_pddq(hdmi, 0); + + dw_hdmi_phy_i2c_set_addr(hdmi, I2C_ADDR); + + /* + * Values are taken from BSP HDMI driver. Although AW didn't + * release any documentation, explanation of this values can + * be found in i.MX 6Dual/6Quad Reference Manual. + */ + if (clk_rate <= 27000000) { + dw_hdmi_phy_i2c_write(hdmi, 0x01e0, 0x06); + dw_hdmi_phy_i2c_write(hdmi, 0x0000, 0x15); + dw_hdmi_phy_i2c_write(hdmi, 0x08da, 0x10); + dw_hdmi_phy_i2c_write(hdmi, 0x0007, 0x19); + dw_hdmi_phy_i2c_write(hdmi, 0x0318, 0x0e); + dw_hdmi_phy_i2c_write(hdmi, 0x8009, 0x09); + } else if (clk_rate <= 74250000) { + dw_hdmi_phy_i2c_write(hdmi, 0x0540, 0x06); + dw_hdmi_phy_i2c_write(hdmi, 0x0005, 0x15); + dw_hdmi_phy_i2c_write(hdmi, 0x0000, 0x10); + dw_hdmi_phy_i2c_write(hdmi, 0x0007, 0x19); + dw_hdmi_phy_i2c_write(hdmi, 0x02b5, 0x0e); + dw_hdmi_phy_i2c_write(hdmi, 0x8009, 0x09); + } else if (clk_rate <= 148500000) { + dw_hdmi_phy_i2c_write(hdmi, 0x04a0, 0x06); + dw_hdmi_phy_i2c_write(hdmi, 0x000a, 0x15); + dw_hdmi_phy_i2c_write(hdmi, 0x0000, 0x10); + dw_hdmi_phy_i2c_write(hdmi, 0x0002, 0x19); + dw_hdmi_phy_i2c_write(hdmi, 0x0021, 0x0e); + dw_hdmi_phy_i2c_write(hdmi, 0x8029, 0x09); + } else { + dw_hdmi_phy_i2c_write(hdmi, 0x0000, 0x06); + dw_hdmi_phy_i2c_write(hdmi, 0x000f, 0x15); + dw_hdmi_phy_i2c_write(hdmi, 0x0000, 0x10); + dw_hdmi_phy_i2c_write(hdmi, 0x0002, 0x19); + dw_hdmi_phy_i2c_write(hdmi, 0x0000, 0x0e); + dw_hdmi_phy_i2c_write(hdmi, 0x802b, 0x09); + } + + dw_hdmi_phy_i2c_write(hdmi, 0x0000, 0x1e); + dw_hdmi_phy_i2c_write(hdmi, 0x0000, 0x13); + dw_hdmi_phy_i2c_write(hdmi, 0x0000, 0x17); + + dw_hdmi_phy_gen2_txpwron(hdmi, 1); + + return 0; +} + +static void sun8i_a83t_hdmi_phy_disable(struct dw_hdmi *hdmi, void *data) +{ + struct sun8i_hdmi_phy *phy = data; + + dw_hdmi_phy_gen2_txpwron(hdmi, 0); + dw_hdmi_phy_gen2_pddq(hdmi, 1); + + regmap_update_bits(phy->regs, SUN8I_HDMI_PHY_REXT_CTRL_REG, + SUN8I_HDMI_PHY_REXT_CTRL_REXT_EN, 0); +} + +static const struct dw_hdmi_phy_ops sun8i_a83t_hdmi_phy_ops = { + .init = sun8i_a83t_hdmi_phy_config, + .disable = sun8i_a83t_hdmi_phy_disable, + .read_hpd = dw_hdmi_phy_read_hpd, + .update_hpd = dw_hdmi_phy_update_hpd, + .setup_hpd = dw_hdmi_phy_setup_hpd, +}; + +static int sun8i_h3_hdmi_phy_config(struct dw_hdmi *hdmi, void *data, + const struct drm_display_info *display, + const struct drm_display_mode *mode) +{ + unsigned int clk_rate = mode->crtc_clock * 1000; + struct sun8i_hdmi_phy *phy = data; + u32 pll_cfg1_init; + u32 pll_cfg2_init; + u32 ana_cfg1_end; + u32 ana_cfg2_init; + u32 ana_cfg3_init; + u32 b_offset = 0; + u32 val; + + if (phy->variant->has_phy_clk) + clk_set_rate(phy->clk_phy, clk_rate); + + sun8i_hdmi_phy_set_polarity(phy, mode); + + /* bandwidth / frequency independent settings */ + + pll_cfg1_init = SUN8I_HDMI_PHY_PLL_CFG1_LDO2_EN | + SUN8I_HDMI_PHY_PLL_CFG1_LDO1_EN | + SUN8I_HDMI_PHY_PLL_CFG1_LDO_VSET(7) | + SUN8I_HDMI_PHY_PLL_CFG1_UNKNOWN(1) | + SUN8I_HDMI_PHY_PLL_CFG1_PLLDBEN | + SUN8I_HDMI_PHY_PLL_CFG1_CS | + SUN8I_HDMI_PHY_PLL_CFG1_CP_S(2) | + SUN8I_HDMI_PHY_PLL_CFG1_CNT_INT(63) | + SUN8I_HDMI_PHY_PLL_CFG1_BWS; + + pll_cfg2_init = SUN8I_HDMI_PHY_PLL_CFG2_SV_H | + SUN8I_HDMI_PHY_PLL_CFG2_VCOGAIN_EN | + SUN8I_HDMI_PHY_PLL_CFG2_SDIV2; + + ana_cfg1_end = SUN8I_HDMI_PHY_ANA_CFG1_REG_SVBH(1) | + SUN8I_HDMI_PHY_ANA_CFG1_AMP_OPT | + SUN8I_HDMI_PHY_ANA_CFG1_EMP_OPT | + SUN8I_HDMI_PHY_ANA_CFG1_AMPCK_OPT | + SUN8I_HDMI_PHY_ANA_CFG1_EMPCK_OPT | + SUN8I_HDMI_PHY_ANA_CFG1_ENRCAL | + SUN8I_HDMI_PHY_ANA_CFG1_ENCALOG | + SUN8I_HDMI_PHY_ANA_CFG1_REG_SCKTMDS | + SUN8I_HDMI_PHY_ANA_CFG1_TMDSCLK_EN | + SUN8I_HDMI_PHY_ANA_CFG1_TXEN_MASK | + SUN8I_HDMI_PHY_ANA_CFG1_TXEN_ALL | + SUN8I_HDMI_PHY_ANA_CFG1_BIASEN_TMDSCLK | + SUN8I_HDMI_PHY_ANA_CFG1_BIASEN_TMDS2 | + SUN8I_HDMI_PHY_ANA_CFG1_BIASEN_TMDS1 | + SUN8I_HDMI_PHY_ANA_CFG1_BIASEN_TMDS0 | + SUN8I_HDMI_PHY_ANA_CFG1_ENP2S_TMDS2 | + SUN8I_HDMI_PHY_ANA_CFG1_ENP2S_TMDS1 | + SUN8I_HDMI_PHY_ANA_CFG1_ENP2S_TMDS0 | + SUN8I_HDMI_PHY_ANA_CFG1_CKEN | + SUN8I_HDMI_PHY_ANA_CFG1_LDOEN | + SUN8I_HDMI_PHY_ANA_CFG1_ENVBS | + SUN8I_HDMI_PHY_ANA_CFG1_ENBI; + + ana_cfg2_init = SUN8I_HDMI_PHY_ANA_CFG2_M_EN | + SUN8I_HDMI_PHY_ANA_CFG2_REG_DENCK | + SUN8I_HDMI_PHY_ANA_CFG2_REG_DEN | + SUN8I_HDMI_PHY_ANA_CFG2_REG_CKSS(1) | + SUN8I_HDMI_PHY_ANA_CFG2_REG_CSMPS(1); + + ana_cfg3_init = SUN8I_HDMI_PHY_ANA_CFG3_REG_WIRE(0x3e0) | + SUN8I_HDMI_PHY_ANA_CFG3_SDAEN | + SUN8I_HDMI_PHY_ANA_CFG3_SCLEN; + + /* bandwidth / frequency dependent settings */ + if (clk_rate <= 27000000) { + pll_cfg1_init |= SUN8I_HDMI_PHY_PLL_CFG1_HV_IS_33 | + SUN8I_HDMI_PHY_PLL_CFG1_CNT_INT(32); + pll_cfg2_init |= SUN8I_HDMI_PHY_PLL_CFG2_VCO_S(4) | + SUN8I_HDMI_PHY_PLL_CFG2_S(4); + ana_cfg1_end |= SUN8I_HDMI_PHY_ANA_CFG1_REG_CALSW; + ana_cfg2_init |= SUN8I_HDMI_PHY_ANA_CFG2_REG_SLV(4) | + SUN8I_HDMI_PHY_ANA_CFG2_REG_RESDI(phy->rcal); + ana_cfg3_init |= SUN8I_HDMI_PHY_ANA_CFG3_REG_AMPCK(3) | + SUN8I_HDMI_PHY_ANA_CFG3_REG_AMP(5); + } else if (clk_rate <= 74250000) { + pll_cfg1_init |= SUN8I_HDMI_PHY_PLL_CFG1_HV_IS_33 | + SUN8I_HDMI_PHY_PLL_CFG1_CNT_INT(32); + pll_cfg2_init |= SUN8I_HDMI_PHY_PLL_CFG2_VCO_S(4) | + SUN8I_HDMI_PHY_PLL_CFG2_S(5); + ana_cfg1_end |= SUN8I_HDMI_PHY_ANA_CFG1_REG_CALSW; + ana_cfg2_init |= SUN8I_HDMI_PHY_ANA_CFG2_REG_SLV(4) | + SUN8I_HDMI_PHY_ANA_CFG2_REG_RESDI(phy->rcal); + ana_cfg3_init |= SUN8I_HDMI_PHY_ANA_CFG3_REG_AMPCK(5) | + SUN8I_HDMI_PHY_ANA_CFG3_REG_AMP(7); + } else if (clk_rate <= 148500000) { + pll_cfg1_init |= SUN8I_HDMI_PHY_PLL_CFG1_HV_IS_33 | + SUN8I_HDMI_PHY_PLL_CFG1_CNT_INT(32); + pll_cfg2_init |= SUN8I_HDMI_PHY_PLL_CFG2_VCO_S(4) | + SUN8I_HDMI_PHY_PLL_CFG2_S(6); + ana_cfg2_init |= SUN8I_HDMI_PHY_ANA_CFG2_REG_BIGSWCK | + SUN8I_HDMI_PHY_ANA_CFG2_REG_BIGSW | + SUN8I_HDMI_PHY_ANA_CFG2_REG_SLV(2); + ana_cfg3_init |= SUN8I_HDMI_PHY_ANA_CFG3_REG_AMPCK(7) | + SUN8I_HDMI_PHY_ANA_CFG3_REG_AMP(9); + } else { + b_offset = 2; + pll_cfg1_init |= SUN8I_HDMI_PHY_PLL_CFG1_CNT_INT(63); + pll_cfg2_init |= SUN8I_HDMI_PHY_PLL_CFG2_VCO_S(6) | + SUN8I_HDMI_PHY_PLL_CFG2_S(7); + ana_cfg2_init |= SUN8I_HDMI_PHY_ANA_CFG2_REG_BIGSWCK | + SUN8I_HDMI_PHY_ANA_CFG2_REG_BIGSW | + SUN8I_HDMI_PHY_ANA_CFG2_REG_SLV(4); + ana_cfg3_init |= SUN8I_HDMI_PHY_ANA_CFG3_REG_AMPCK(9) | + SUN8I_HDMI_PHY_ANA_CFG3_REG_AMP(13) | + SUN8I_HDMI_PHY_ANA_CFG3_REG_EMP(3); + } + + regmap_update_bits(phy->regs, SUN8I_HDMI_PHY_ANA_CFG1_REG, + SUN8I_HDMI_PHY_ANA_CFG1_TXEN_MASK, 0); + + /* + * NOTE: We have to be careful not to overwrite PHY parent + * clock selection bit and clock divider. + */ + regmap_update_bits(phy->regs, SUN8I_HDMI_PHY_PLL_CFG1_REG, + (u32)~SUN8I_HDMI_PHY_PLL_CFG1_CKIN_SEL_MSK, + pll_cfg1_init); + regmap_update_bits(phy->regs, SUN8I_HDMI_PHY_PLL_CFG2_REG, + (u32)~SUN8I_HDMI_PHY_PLL_CFG2_PREDIV_MSK, + pll_cfg2_init); + usleep_range(10000, 15000); + regmap_write(phy->regs, SUN8I_HDMI_PHY_PLL_CFG3_REG, + SUN8I_HDMI_PHY_PLL_CFG3_SOUT_DIV2); + regmap_update_bits(phy->regs, SUN8I_HDMI_PHY_PLL_CFG1_REG, + SUN8I_HDMI_PHY_PLL_CFG1_PLLEN, + SUN8I_HDMI_PHY_PLL_CFG1_PLLEN); + msleep(100); + + /* get B value */ + regmap_read(phy->regs, SUN8I_HDMI_PHY_ANA_STS_REG, &val); + val = (val & SUN8I_HDMI_PHY_ANA_STS_B_OUT_MSK) >> + SUN8I_HDMI_PHY_ANA_STS_B_OUT_SHIFT; + val = min(val + b_offset, (u32)0x3f); + + regmap_update_bits(phy->regs, SUN8I_HDMI_PHY_PLL_CFG1_REG, + SUN8I_HDMI_PHY_PLL_CFG1_REG_OD1 | + SUN8I_HDMI_PHY_PLL_CFG1_REG_OD, + SUN8I_HDMI_PHY_PLL_CFG1_REG_OD1 | + SUN8I_HDMI_PHY_PLL_CFG1_REG_OD); + regmap_update_bits(phy->regs, SUN8I_HDMI_PHY_PLL_CFG1_REG, + SUN8I_HDMI_PHY_PLL_CFG1_B_IN_MSK, + val << SUN8I_HDMI_PHY_PLL_CFG1_B_IN_SHIFT); + msleep(100); + regmap_write(phy->regs, SUN8I_HDMI_PHY_ANA_CFG1_REG, ana_cfg1_end); + regmap_write(phy->regs, SUN8I_HDMI_PHY_ANA_CFG2_REG, ana_cfg2_init); + regmap_write(phy->regs, SUN8I_HDMI_PHY_ANA_CFG3_REG, ana_cfg3_init); + + return 0; +} + +static void sun8i_h3_hdmi_phy_disable(struct dw_hdmi *hdmi, void *data) +{ + struct sun8i_hdmi_phy *phy = data; + + regmap_write(phy->regs, SUN8I_HDMI_PHY_ANA_CFG1_REG, + SUN8I_HDMI_PHY_ANA_CFG1_LDOEN | + SUN8I_HDMI_PHY_ANA_CFG1_ENVBS | + SUN8I_HDMI_PHY_ANA_CFG1_ENBI); + regmap_write(phy->regs, SUN8I_HDMI_PHY_PLL_CFG1_REG, 0); +} + +static const struct dw_hdmi_phy_ops sun8i_h3_hdmi_phy_ops = { + .init = sun8i_h3_hdmi_phy_config, + .disable = sun8i_h3_hdmi_phy_disable, + .read_hpd = dw_hdmi_phy_read_hpd, + .update_hpd = dw_hdmi_phy_update_hpd, + .setup_hpd = dw_hdmi_phy_setup_hpd, +}; + +static void sun8i_hdmi_phy_unlock(struct sun8i_hdmi_phy *phy) +{ + /* enable read access to HDMI controller */ + regmap_write(phy->regs, SUN8I_HDMI_PHY_READ_EN_REG, + SUN8I_HDMI_PHY_READ_EN_MAGIC); + + /* unscramble register offsets */ + regmap_write(phy->regs, SUN8I_HDMI_PHY_UNSCRAMBLE_REG, + SUN8I_HDMI_PHY_UNSCRAMBLE_MAGIC); +} + +static void sun50i_hdmi_phy_init_h6(struct sun8i_hdmi_phy *phy) +{ + regmap_update_bits(phy->regs, SUN8I_HDMI_PHY_REXT_CTRL_REG, + SUN8I_HDMI_PHY_REXT_CTRL_REXT_EN, + SUN8I_HDMI_PHY_REXT_CTRL_REXT_EN); + + regmap_update_bits(phy->regs, SUN8I_HDMI_PHY_REXT_CTRL_REG, + 0xffff0000, 0x80c00000); +} + +static void sun8i_hdmi_phy_init_a83t(struct sun8i_hdmi_phy *phy) +{ + sun8i_hdmi_phy_unlock(phy); + + regmap_update_bits(phy->regs, SUN8I_HDMI_PHY_DBG_CTRL_REG, + SUN8I_HDMI_PHY_DBG_CTRL_PX_LOCK, + SUN8I_HDMI_PHY_DBG_CTRL_PX_LOCK); + + /* + * Set PHY I2C address. It must match to the address set by + * dw_hdmi_phy_set_slave_addr(). + */ + regmap_update_bits(phy->regs, SUN8I_HDMI_PHY_DBG_CTRL_REG, + SUN8I_HDMI_PHY_DBG_CTRL_ADDR_MASK, + SUN8I_HDMI_PHY_DBG_CTRL_ADDR(I2C_ADDR)); +} + +static void sun8i_hdmi_phy_init_h3(struct sun8i_hdmi_phy *phy) +{ + unsigned int val; + + sun8i_hdmi_phy_unlock(phy); + + regmap_write(phy->regs, SUN8I_HDMI_PHY_ANA_CFG1_REG, 0); + regmap_update_bits(phy->regs, SUN8I_HDMI_PHY_ANA_CFG1_REG, + SUN8I_HDMI_PHY_ANA_CFG1_ENBI, + SUN8I_HDMI_PHY_ANA_CFG1_ENBI); + udelay(5); + regmap_update_bits(phy->regs, SUN8I_HDMI_PHY_ANA_CFG1_REG, + SUN8I_HDMI_PHY_ANA_CFG1_TMDSCLK_EN, + SUN8I_HDMI_PHY_ANA_CFG1_TMDSCLK_EN); + regmap_update_bits(phy->regs, SUN8I_HDMI_PHY_ANA_CFG1_REG, + SUN8I_HDMI_PHY_ANA_CFG1_ENVBS, + SUN8I_HDMI_PHY_ANA_CFG1_ENVBS); + usleep_range(10, 20); + regmap_update_bits(phy->regs, SUN8I_HDMI_PHY_ANA_CFG1_REG, + SUN8I_HDMI_PHY_ANA_CFG1_LDOEN, + SUN8I_HDMI_PHY_ANA_CFG1_LDOEN); + udelay(5); + regmap_update_bits(phy->regs, SUN8I_HDMI_PHY_ANA_CFG1_REG, + SUN8I_HDMI_PHY_ANA_CFG1_CKEN, + SUN8I_HDMI_PHY_ANA_CFG1_CKEN); + usleep_range(40, 100); + regmap_update_bits(phy->regs, SUN8I_HDMI_PHY_ANA_CFG1_REG, + SUN8I_HDMI_PHY_ANA_CFG1_ENRCAL, + SUN8I_HDMI_PHY_ANA_CFG1_ENRCAL); + usleep_range(100, 200); + regmap_update_bits(phy->regs, SUN8I_HDMI_PHY_ANA_CFG1_REG, + SUN8I_HDMI_PHY_ANA_CFG1_ENCALOG, + SUN8I_HDMI_PHY_ANA_CFG1_ENCALOG); + regmap_update_bits(phy->regs, SUN8I_HDMI_PHY_ANA_CFG1_REG, + SUN8I_HDMI_PHY_ANA_CFG1_ENP2S_TMDS0 | + SUN8I_HDMI_PHY_ANA_CFG1_ENP2S_TMDS1 | + SUN8I_HDMI_PHY_ANA_CFG1_ENP2S_TMDS2, + SUN8I_HDMI_PHY_ANA_CFG1_ENP2S_TMDS0 | + SUN8I_HDMI_PHY_ANA_CFG1_ENP2S_TMDS1 | + SUN8I_HDMI_PHY_ANA_CFG1_ENP2S_TMDS2); + + /* wait for calibration to finish */ + regmap_read_poll_timeout(phy->regs, SUN8I_HDMI_PHY_ANA_STS_REG, val, + (val & SUN8I_HDMI_PHY_ANA_STS_RCALEND2D), + 100, 2000); + + regmap_update_bits(phy->regs, SUN8I_HDMI_PHY_ANA_CFG1_REG, + SUN8I_HDMI_PHY_ANA_CFG1_ENP2S_TMDSCLK, + SUN8I_HDMI_PHY_ANA_CFG1_ENP2S_TMDSCLK); + regmap_update_bits(phy->regs, SUN8I_HDMI_PHY_ANA_CFG1_REG, + SUN8I_HDMI_PHY_ANA_CFG1_BIASEN_TMDS0 | + SUN8I_HDMI_PHY_ANA_CFG1_BIASEN_TMDS1 | + SUN8I_HDMI_PHY_ANA_CFG1_BIASEN_TMDS2 | + SUN8I_HDMI_PHY_ANA_CFG1_BIASEN_TMDSCLK, + SUN8I_HDMI_PHY_ANA_CFG1_BIASEN_TMDS0 | + SUN8I_HDMI_PHY_ANA_CFG1_BIASEN_TMDS1 | + SUN8I_HDMI_PHY_ANA_CFG1_BIASEN_TMDS2 | + SUN8I_HDMI_PHY_ANA_CFG1_BIASEN_TMDSCLK); + + /* enable DDC communication */ + regmap_update_bits(phy->regs, SUN8I_HDMI_PHY_ANA_CFG3_REG, + SUN8I_HDMI_PHY_ANA_CFG3_SCLEN | + SUN8I_HDMI_PHY_ANA_CFG3_SDAEN, + SUN8I_HDMI_PHY_ANA_CFG3_SCLEN | + SUN8I_HDMI_PHY_ANA_CFG3_SDAEN); + + /* reset PHY PLL clock parent */ + regmap_update_bits(phy->regs, SUN8I_HDMI_PHY_PLL_CFG1_REG, + SUN8I_HDMI_PHY_PLL_CFG1_CKIN_SEL_MSK, 0); + + /* set HW control of CEC pins */ + regmap_write(phy->regs, SUN8I_HDMI_PHY_CEC_REG, 0); + + /* read calibration data */ + regmap_read(phy->regs, SUN8I_HDMI_PHY_ANA_STS_REG, &val); + phy->rcal = (val & SUN8I_HDMI_PHY_ANA_STS_RCAL_MASK) >> 2; +} + +int sun8i_hdmi_phy_init(struct sun8i_hdmi_phy *phy) +{ + int ret; + + ret = reset_control_deassert(phy->rst_phy); + if (ret) { + dev_err(phy->dev, "Cannot deassert phy reset control: %d\n", ret); + return ret; + } + + ret = clk_prepare_enable(phy->clk_bus); + if (ret) { + dev_err(phy->dev, "Cannot enable bus clock: %d\n", ret); + goto err_assert_rst_phy; + } + + ret = clk_prepare_enable(phy->clk_mod); + if (ret) { + dev_err(phy->dev, "Cannot enable mod clock: %d\n", ret); + goto err_disable_clk_bus; + } + + if (phy->variant->has_phy_clk) { + ret = sun8i_phy_clk_create(phy, phy->dev, + phy->variant->has_second_pll); + if (ret) { + dev_err(phy->dev, "Couldn't create the PHY clock\n"); + goto err_disable_clk_mod; + } + + clk_prepare_enable(phy->clk_phy); + } + + phy->variant->phy_init(phy); + + return 0; + +err_disable_clk_mod: + clk_disable_unprepare(phy->clk_mod); +err_disable_clk_bus: + clk_disable_unprepare(phy->clk_bus); +err_assert_rst_phy: + reset_control_assert(phy->rst_phy); + + return ret; +} + +void sun8i_hdmi_phy_deinit(struct sun8i_hdmi_phy *phy) +{ + clk_disable_unprepare(phy->clk_mod); + clk_disable_unprepare(phy->clk_bus); + clk_disable_unprepare(phy->clk_phy); + + reset_control_assert(phy->rst_phy); +} + +void sun8i_hdmi_phy_set_ops(struct sun8i_hdmi_phy *phy, + struct dw_hdmi_plat_data *plat_data) +{ + const struct sun8i_hdmi_phy_variant *variant = phy->variant; + + if (variant->phy_ops) { + plat_data->phy_ops = variant->phy_ops; + plat_data->phy_name = "sun8i_dw_hdmi_phy"; + plat_data->phy_data = phy; + } else { + plat_data->mpll_cfg = variant->mpll_cfg; + plat_data->cur_ctr = variant->cur_ctr; + plat_data->phy_config = variant->phy_cfg; + } +} + +static const struct regmap_config sun8i_hdmi_phy_regmap_config = { + .reg_bits = 32, + .val_bits = 32, + .reg_stride = 4, + .max_register = SUN8I_HDMI_PHY_CEC_REG, + .name = "phy" +}; + +static const struct sun8i_hdmi_phy_variant sun8i_a83t_hdmi_phy = { + .phy_ops = &sun8i_a83t_hdmi_phy_ops, + .phy_init = &sun8i_hdmi_phy_init_a83t, +}; + +static const struct sun8i_hdmi_phy_variant sun8i_h3_hdmi_phy = { + .has_phy_clk = true, + .phy_ops = &sun8i_h3_hdmi_phy_ops, + .phy_init = &sun8i_hdmi_phy_init_h3, +}; + +static const struct sun8i_hdmi_phy_variant sun8i_r40_hdmi_phy = { + .has_phy_clk = true, + .has_second_pll = true, + .phy_ops = &sun8i_h3_hdmi_phy_ops, + .phy_init = &sun8i_hdmi_phy_init_h3, +}; + +static const struct sun8i_hdmi_phy_variant sun50i_a64_hdmi_phy = { + .has_phy_clk = true, + .phy_ops = &sun8i_h3_hdmi_phy_ops, + .phy_init = &sun8i_hdmi_phy_init_h3, +}; + +static const struct sun8i_hdmi_phy_variant sun50i_h6_hdmi_phy = { + .cur_ctr = sun50i_h6_cur_ctr, + .mpll_cfg = sun50i_h6_mpll_cfg, + .phy_cfg = sun50i_h6_phy_config, + .phy_init = &sun50i_hdmi_phy_init_h6, +}; + +static const struct of_device_id sun8i_hdmi_phy_of_table[] = { + { + .compatible = "allwinner,sun8i-a83t-hdmi-phy", + .data = &sun8i_a83t_hdmi_phy, + }, + { + .compatible = "allwinner,sun8i-h3-hdmi-phy", + .data = &sun8i_h3_hdmi_phy, + }, + { + .compatible = "allwinner,sun8i-r40-hdmi-phy", + .data = &sun8i_r40_hdmi_phy, + }, + { + .compatible = "allwinner,sun50i-a64-hdmi-phy", + .data = &sun50i_a64_hdmi_phy, + }, + { + .compatible = "allwinner,sun50i-h6-hdmi-phy", + .data = &sun50i_h6_hdmi_phy, + }, + { /* sentinel */ } +}; + +int sun8i_hdmi_phy_get(struct sun8i_dw_hdmi *hdmi, struct device_node *node) +{ + struct platform_device *pdev = of_find_device_by_node(node); + struct sun8i_hdmi_phy *phy; + + if (!pdev) + return -EPROBE_DEFER; + + phy = platform_get_drvdata(pdev); + if (!phy) { + put_device(&pdev->dev); + return -EPROBE_DEFER; + } + + hdmi->phy = phy; + + put_device(&pdev->dev); + + return 0; +} + +static int sun8i_hdmi_phy_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct sun8i_hdmi_phy *phy; + void __iomem *regs; + + phy = devm_kzalloc(dev, sizeof(*phy), GFP_KERNEL); + if (!phy) + return -ENOMEM; + + phy->variant = of_device_get_match_data(dev); + phy->dev = dev; + + regs = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(regs)) + return dev_err_probe(dev, PTR_ERR(regs), + "Couldn't map the HDMI PHY registers\n"); + + phy->regs = devm_regmap_init_mmio(dev, regs, + &sun8i_hdmi_phy_regmap_config); + if (IS_ERR(phy->regs)) + return dev_err_probe(dev, PTR_ERR(phy->regs), + "Couldn't create the HDMI PHY regmap\n"); + + phy->clk_bus = devm_clk_get(dev, "bus"); + if (IS_ERR(phy->clk_bus)) + return dev_err_probe(dev, PTR_ERR(phy->clk_bus), + "Could not get bus clock\n"); + + phy->clk_mod = devm_clk_get(dev, "mod"); + if (IS_ERR(phy->clk_mod)) + return dev_err_probe(dev, PTR_ERR(phy->clk_mod), + "Could not get mod clock\n"); + + if (phy->variant->has_phy_clk) { + phy->clk_pll0 = devm_clk_get(dev, "pll-0"); + if (IS_ERR(phy->clk_pll0)) + return dev_err_probe(dev, PTR_ERR(phy->clk_pll0), + "Could not get pll-0 clock\n"); + + if (phy->variant->has_second_pll) { + phy->clk_pll1 = devm_clk_get(dev, "pll-1"); + if (IS_ERR(phy->clk_pll1)) + return dev_err_probe(dev, PTR_ERR(phy->clk_pll1), + "Could not get pll-1 clock\n"); + } + } + + phy->rst_phy = devm_reset_control_get_shared(dev, "phy"); + if (IS_ERR(phy->rst_phy)) + return dev_err_probe(dev, PTR_ERR(phy->rst_phy), + "Could not get phy reset control\n"); + + platform_set_drvdata(pdev, phy); + + return 0; +} + +struct platform_driver sun8i_hdmi_phy_driver = { + .probe = sun8i_hdmi_phy_probe, + .driver = { + .name = "sun8i-hdmi-phy", + .of_match_table = sun8i_hdmi_phy_of_table, + }, +}; |