| /linux-6.12.1/drivers/usb/mtu3/ |
| D | mtu3_core.c | 73 /* If usb3_en==0, LTSSM will go to SS.Disable state */ in mtu3_ss_func_set()
184 /* Clear U3 LTSSM interrupts status */ in mtu3_intr_status_clear()
217 /* Enable U3 LTSSM interrupts */ in mtu3_intr_enable()
739 u32 ltssm; in mtu3_u3_ltssm_isr() local
741 ltssm = mtu3_readl(mbase, U3D_LTSSM_INTR); in mtu3_u3_ltssm_isr()
742 ltssm &= mtu3_readl(mbase, U3D_LTSSM_INTR_ENABLE); in mtu3_u3_ltssm_isr()
743 mtu3_writel(mbase, U3D_LTSSM_INTR, ltssm); /* W1C */ in mtu3_u3_ltssm_isr()
744 dev_dbg(mtu->dev, "=== LTSSM[%x] ===\n", ltssm); in mtu3_u3_ltssm_isr()
745 trace_mtu3_u3_ltssm_isr(ltssm); in mtu3_u3_ltssm_isr()
747 if (ltssm & (HOT_RST_INTR | WARM_RST_INTR)) in mtu3_u3_ltssm_isr()
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| D | mtu3_debugfs.c | 84 seq_printf(sf, "opstate: %#x, ltssm: %#x\n", in mtu3_link_state_show()
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| /linux-6.12.1/Documentation/admin-guide/perf/ |
| D | dwc_pcie_pmu.rst | 18 time spent in each low-power LTSSM state) and
28 throughput and time spent in each low-power LTSSM state by the controller.
31 - Group#0: Percentage of time the controller stays in LTSSM states.
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| /linux-6.12.1/drivers/pci/controller/dwc/ |
| D | pcie-bt1.c | 265 * Enable LTSSM and make sure it was able to establish both PHY and in bt1_pcie_start_link()
275 dev_err(pci->dev, "LTSSM failed to set PHY link up\n"); in bt1_pcie_start_link()
283 dev_err(pci->dev, "LTSSM failed to set data link up\n"); in bt1_pcie_start_link()
300 dev_err(pci->dev, "LTSSM failed to get into L0 state\n"); in bt1_pcie_start_link()
380 /* Disable LTSSM for sure */ in bt1_pcie_full_stop_bus()
506 /* Make sure the state is settled (LTSSM is still disabled though) */ in bt1_pcie_cold_start_bus()
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| D | pcie-armada8k.c | 160 /* Start LTSSM */ in armada8k_pcie_start_link()
174 /* Disable LTSSM state machine to enable configuration */ in armada8k_pcie_host_init()
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| D | pcie-dw-rockchip.c | 201 * from RC, so enabling LTSSM is the just right place to release #PERST. in rockchip_pcie_start_link()
429 /* LTSSM enable control mode */ in rockchip_pcie_configure_rc()
466 /* LTSSM enable control mode */ in rockchip_pcie_configure_ep()
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| D | pcie-fu740.c | 202 /* Enable LTSSM */ in fu740_pcie_start_link()
255 * Assert hold_phy_rst (hold the controller LTSSM in reset after in fu740_pcie_host_init()
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| D | pcie-spear13xx.c | 74 /* enable ltssm */ in spear13xx_pcie_start_link()
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| D | pcie-tegra194.c | 968 /* Enable LTSSM */ in tegra_pcie_dw_start_link()
1003 /* Disable LTSSM */ in tegra_pcie_dw_start_link()
1598 * PERST#. So, de-assert LTSSM to bring link to detect state. in tegra_pcie_dw_pme_turnoff()
1694 /* Disable LTSSM */ in pex_ep_event_pex_rst_assert()
1905 /* Enable LTSSM */ in pex_ep_event_pex_rst_deassert()
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| D | pci-exynos.c | 130 /* assert LTSSM enable */ in exynos_pcie_start_link()
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| D | pcie-histb.c | 175 /* assert LTSSM enable */ in histb_pcie_start_link()
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| D | pci-imx6.c | 856 /* Start LTSSM. */ in imx_pcie_start_link()
924 /* Turn off PCIe LTSSM */ in imx_pcie_stop_link()
1168 /* Start LTSSM. */ in imx_add_pcie_ep()
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| /linux-6.12.1/drivers/usb/gadget/udc/ |
| D | mv_u3d.h | 173 u32 ltssm; /* LTSSM control register */ member
180 u32 ltssmstate; /* LTSSM state register */
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| D | mv_u3d_core.c | 1039 /* enable link LTSSM state machine */ in mv_u3d_controller_start()
1040 temp = ioread32(&u3d->vuc_regs->ltssm); in mv_u3d_controller_start()
1042 iowrite32(temp, &u3d->vuc_regs->ltssm); in mv_u3d_controller_start()
1412 dev_dbg(u3d->dev, "link up: ltssm state: 0x%x\n", in mv_u3d_irq_process_link_change()
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| /linux-6.12.1/Documentation/devicetree/bindings/pci/ |
| D | mediatek-pcie-cfg.yaml | 15 LTSSM, ASPM and so on.
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| D | baikal,bt1-pcie.yaml | 102 access some additional PM, Reset-related and LTSSM signals.
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| D | mediatek-pcie.txt | 31 - pipe_ckN :LTSSM and PHY/MAC layer operating clock
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| /linux-6.12.1/Documentation/ABI/testing/ |
| D | configfs-spear-pcie-gadget | 20 link used to enable ltssm and read its status.
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| /linux-6.12.1/drivers/pci/controller/cadence/ |
| D | pcie-cadence.h | 213 /* LTSSM Capabilities register */
326 * @quirk_detect_quiet_flag: LTSSM Detect Quiet min delay set as quirk
369 * @quirk_detect_quiet_flag: LTSSM Detect Quiet min delay set as quirk
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| D | pcie-cadence.c | 17 * Set the LTSSM Detect Quiet state min. delay to 2ms. in cdns_pcie_detect_quiet_min_delay_set()
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| /linux-6.12.1/include/linux/bcma/ |
| D | bcma_driver_pci.h | 116 #define BCMA_CORE_PCI_PLP_LTSSMCTRLREG 0x208 /* LTSSM control */
129 #define BCMA_CORE_PCI_PLP_LTSSMDIAGREG 0x23C /* LTSSM State Machine Diag */
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| /linux-6.12.1/drivers/pci/controller/ |
| D | pci-aardvark.c | 171 /* LTSSM values in CFG_REG */
314 /* check if LTSSM is in normal operation - some L* state */ in advk_pcie_link_up()
323 * Status Mapped to the LTSSM, and 4.2.6.3.6 Configuration.Idle in advk_pcie_link_active()
324 * is Link Up mapped to LTSSM Configuration.Idle, Recovery, L0, in advk_pcie_link_active()
337 * Status Mapped to the LTSSM is Link Training mapped to LTSSM in advk_pcie_link_training()
873 * But support for PCI_EXP_LNKSTA_DLLLA is emulated via ltssm in advk_pci_bridge_emul_pcie_conf_read()
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| D | pcie-mediatek-gen3.c | 197 /* LTSSM state in PCIE_LTSSM_STATUS_REG bit[28:24] */
435 "PCIe link down, current LTSSM state: %s (%#x)\n", in mtk_pcie_startup_port()
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| /linux-6.12.1/Documentation/misc-devices/ |
| D | spear-pcie-gadget.rst | 40 link gives ltssm status.
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| /linux-6.12.1/Documentation/devicetree/bindings/usb/ |
| D | snps,dwc3.yaml | 185 The value driven to the PHY is controlled by the LTSSM during USB3
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