| /Linux-v6.1/drivers/gpu/drm/nouveau/nvkm/engine/disp/ |
| D | conn.c | 35 struct nvkm_conn *conn = container_of(notify, typeof(*conn), hpd); in nvkm_conn_hpd()
42 CONN_DBG(conn, "HPD: %d", line->mask); in nvkm_conn_hpd()
44 if (!nvkm_gpio_get(gpio, 0, DCB_GPIO_UNUSED, conn->hpd.index)) in nvkm_conn_hpd()
50 nvkm_event_send(&disp->hpd, rep.mask, index, &rep, sizeof(rep)); in nvkm_conn_hpd()
57 nvkm_notify_put(&conn->hpd); in nvkm_conn_fini()
63 nvkm_notify_get(&conn->hpd); in nvkm_conn_init()
71 nvkm_notify_fini(&conn->hpd); in nvkm_conn_del()
81 static const u8 hpd[] = { 0x07, 0x08, 0x51, 0x52, 0x5e, 0x5f, 0x60 }; in nvkm_conn_ctor() local
89 conn->info.hpd = DCB_GPIO_UNUSED; in nvkm_conn_ctor()
91 CONN_DBG(conn, "type %02x loc %d hpd %02x dp %x di %x sr %x lcdid %x", in nvkm_conn_ctor()
[all …]
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| /Linux-v6.1/Documentation/devicetree/bindings/display/panel/ |
| D | panel-edp.yaml | 56 HPD :<T3>| : : |
91 hpd-reliable-delay-ms:
94 panel's power-supply before the HPD signal is a reliable way to know
96 the HPD at the start of power-on. This value is not needed if HPD is
99 hpd-absent-delay-ms:
101 The panel specifies that HPD will be asserted this many milliseconds
103 measure HPD then a fixed delay of this many milliseconds can be used.
104 This can also be used as a timeout when waiting for HPD. Does not
105 include the hpd-reliable-delay, so if hpd-reliable-delay was 80 ms
106 and hpd-absent-delay was 200 ms then we'd do a fixed 80 ms delay and
[all …]
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| /Linux-v6.1/drivers/gpu/drm/mediatek/ |
| D | mtk_cec.c | 54 bool hpd; member
55 void (*hpd_event)(bool hpd, struct device *dev);
92 void (*hpd_event)(bool hpd, struct device *dev), in mtk_cec_set_hpd_event() argument
149 static void mtk_cec_hpd_event(struct mtk_cec *cec, bool hpd) in mtk_cec_hpd_event() argument
151 void (*hpd_event)(bool hpd, struct device *dev); in mtk_cec_hpd_event()
161 hpd_event(hpd, hdmi_dev); in mtk_cec_hpd_event()
168 bool hpd; in mtk_cec_htplg_isr_thread() local
171 hpd = mtk_cec_hpd_high(dev); in mtk_cec_htplg_isr_thread()
173 if (cec->hpd != hpd) { in mtk_cec_htplg_isr_thread()
174 dev_dbg(dev, "hotplug event! cur hpd = %d, hpd = %d\n", in mtk_cec_htplg_isr_thread()
[all …]
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| /Linux-v6.1/drivers/gpu/drm/radeon/ |
| D | radeon_combios.c | 632 i2c.hpd = RADEON_HPD_NONE; in combios_setup_i2c_bus()
1455 struct radeon_hpd hpd; in radeon_get_legacy_connector_info_from_table() local
1542 hpd.hpd = RADEON_HPD_NONE; in radeon_get_legacy_connector_info_from_table()
1553 &hpd); in radeon_get_legacy_connector_info_from_table()
1557 hpd.hpd = RADEON_HPD_NONE; in radeon_get_legacy_connector_info_from_table()
1568 &hpd); in radeon_get_legacy_connector_info_from_table()
1572 hpd.hpd = RADEON_HPD_NONE; in radeon_get_legacy_connector_info_from_table()
1583 &hpd); in radeon_get_legacy_connector_info_from_table()
1587 hpd.hpd = RADEON_HPD_1; in radeon_get_legacy_connector_info_from_table()
1604 &hpd); in radeon_get_legacy_connector_info_from_table()
[all …]
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| D | radeon_connectors.c | 46 /* bail if the connector does not have hpd pin, e.g., in radeon_connector_hotplug()
49 if (radeon_connector->hpd.hpd == RADEON_HPD_NONE) in radeon_connector_hotplug()
52 radeon_hpd_set_polarity(rdev, radeon_connector->hpd.hpd); in radeon_connector_hotplug()
74 radeon_hpd_sense(rdev, radeon_connector->hpd.hpd) && in radeon_connector_hotplug()
1200 /* We only trust HPD on R600 and newer ASICS. */ in radeon_check_hpd_status_unchanged()
1202 && radeon_connector->hpd.hpd != RADEON_HPD_NONE) { in radeon_check_hpd_status_unchanged()
1203 if (radeon_hpd_sense(rdev, radeon_connector->hpd.hpd)) in radeon_check_hpd_status_unchanged()
1260 * for HPD do. If the DDC probe fails even though we had an HPD in radeon_dvi_detect()
1264 DRM_DEBUG_KMS("hpd detected without ddc, retrying in 1 second\n"); in radeon_dvi_detect()
1321 /* hpd is our only option in this case */ in radeon_dvi_detect()
[all …]
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| /Linux-v6.1/drivers/gpu/drm/i915/display/ |
| D | intel_hotplug.c | 42 * handlers gather the hotplug detect (HPD) information from relevant registers
71 * callback is handled by i915_digport_work_func reenabling of hpd is not
81 * @port: the hpd port to get associated pin
112 * intel_hpd_irq_storm_detect - gather stats and detect HPD IRQ storm on a pin
115 * @long_hpd: whether the HPD IRQ was long or short
117 * Gather stats about HPD IRQs from the specified @pin, and detect IRQ
135 * The HPD threshold can be controlled through i915_hpd_storm_ctl in debugfs,
143 struct intel_hotplug *hpd = &dev_priv->display.hotplug; in intel_hpd_irq_storm_detect() local
144 unsigned long start = hpd->stats[pin].last_jiffies; in intel_hpd_irq_storm_detect()
147 const int threshold = hpd->hpd_storm_threshold; in intel_hpd_irq_storm_detect()
[all …]
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| /Linux-v6.1/drivers/gpu/drm/amd/display/dc/gpio/ |
| D | hw_hpd.c | 38 hpd->shifts->field_name, hpd->masks->field_name
41 hpd->base.base.ctx
43 (hpd->regs->reg)
56 struct hw_hpd *hpd = HW_HPD_FROM_BASE(*ptr); in dal_hw_hpd_destroy() local
58 dal_hw_hpd_destruct(hpd); in dal_hw_hpd_destroy()
60 kfree(hpd); in dal_hw_hpd_destroy()
69 struct hw_hpd *hpd = HW_HPD_FROM_BASE(ptr); in get_value() local
92 struct hw_hpd *hpd = HW_HPD_FROM_BASE(ptr); in set_config() local
98 DC_HPD_CONNECT_INT_DELAY, config_data->config.hpd.delay_on_connect / 10, in set_config()
99 DC_HPD_DISCONNECT_INT_DELAY, config_data->config.hpd.delay_on_disconnect / 10); in set_config()
|
| /Linux-v6.1/Documentation/devicetree/bindings/media/ |
| D | cec-gpio.txt | 4 is hooked up to a pull-up GPIO line and - optionally - the HPD line is
7 Please note: the maximum voltage for the CEC line is 3.63V, for the HPD and
22 the following property is optional and can be used for debugging HPD changes:
24 - hpd-gpios: gpio that the HPD line is connected to.
31 pin 26 aka BCM7 aka CE1 on the GPIO pin header, the HPD line is
33 15 aka BCM22 (some level shifter is needed for the HPD and 5V lines!):
40 hpd-gpios = <&gpio 17 GPIO_ACTIVE_HIGH>;
|
| D | cec.txt | 5 - needs-hpd: if present the CEC support is only available when the HPD
6 is high. Some boards only let the CEC pin through if the HPD is high,
7 for example if there is a level converter that uses the HPD to power
|
| /Linux-v6.1/arch/powerpc/include/asm/book3s/64/ |
| D | hugetlb.h | 67 static inline pte_t *hugepd_page(hugepd_t hpd) in hugepd_page() argument
69 BUG_ON(!hugepd_ok(hpd)); in hugepd_page()
74 return __va(hpd_val(hpd) & HUGEPD_ADDR_MASK); in hugepd_page()
77 static inline unsigned int hugepd_mmu_psize(hugepd_t hpd) in hugepd_mmu_psize() argument
79 return (hpd_val(hpd) & HUGEPD_SHIFT_MASK) >> 2; in hugepd_mmu_psize()
82 static inline unsigned int hugepd_shift(hugepd_t hpd) in hugepd_shift() argument
84 return mmu_psize_to_shift(hugepd_mmu_psize(hpd)); in hugepd_shift()
93 static inline pte_t *hugepte_offset(hugepd_t hpd, unsigned long addr, in hugepte_offset() argument
96 unsigned long idx = (addr & ((1UL << pdshift) - 1)) >> hugepd_shift(hpd); in hugepte_offset()
98 return hugepd_page(hpd) + idx; in hugepte_offset()
|
| D | pgtable-4k.h | 34 static inline int hugepd_ok(hugepd_t hpd) in hugepd_ok() argument
38 return hash__hugepd_ok(hpd); in hugepd_ok()
40 #define is_hugepd(hpd) (hugepd_ok(hpd)) argument
|
| /Linux-v6.1/arch/powerpc/include/asm/nohash/ |
| D | hugetlb-e500.h | 5 static inline pte_t *hugepd_page(hugepd_t hpd) in hugepd_page() argument
7 if (WARN_ON(!hugepd_ok(hpd))) in hugepd_page()
10 return (pte_t *)((hpd_val(hpd) & ~HUGEPD_SHIFT_MASK) | PD_HUGE); in hugepd_page()
13 static inline unsigned int hugepd_shift(hugepd_t hpd) in hugepd_shift() argument
15 return hpd_val(hpd) & HUGEPD_SHIFT_MASK; in hugepd_shift()
18 static inline pte_t *hugepte_offset(hugepd_t hpd, unsigned long addr, in hugepte_offset() argument
26 return hugepd_page(hpd); in hugepte_offset()
|
| /Linux-v6.1/drivers/gpu/drm/msm/hdmi/ |
| D | hdmi_hpd.c | 83 "failed to enable hpd clk: %s (%d)\n", in enable_hpd_clocks()
105 DRM_DEV_ERROR(dev, "failed to enable hpd regulators: %d\n", ret); in msm_hdmi_hpd_enable()
127 /* enable HPD events: */ in msm_hdmi_hpd_enable()
137 /* Toggle HPD circuit to trigger HPD sense */ in msm_hdmi_hpd_enable()
157 /* Disable HPD interrupt */ in msm_hdmi_hpd_disable()
171 dev_warn(dev, "failed to disable hpd regulator: %d\n", ret); in msm_hdmi_hpd_disable()
180 /* Process HPD: */ in msm_hdmi_hpd_irq()
188 /* ack & disable (temporarily) HPD events: */ in msm_hdmi_hpd_irq()
237 * some platforms may not have hpd gpio. Rely only on the status in msm_hdmi_bridge_detect()
259 DBG("hpd gpio tells us: %d", stat_gpio); in msm_hdmi_bridge_detect()
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| /Linux-v6.1/arch/powerpc/include/asm/nohash/32/ |
| D | hugetlb-8xx.h | 7 static inline pte_t *hugepd_page(hugepd_t hpd) in hugepd_page() argument
9 BUG_ON(!hugepd_ok(hpd)); in hugepd_page()
11 return (pte_t *)__va(hpd_val(hpd) & ~HUGEPD_SHIFT_MASK); in hugepd_page()
14 static inline unsigned int hugepd_shift(hugepd_t hpd) in hugepd_shift() argument
19 static inline pte_t *hugepte_offset(hugepd_t hpd, unsigned long addr, in hugepte_offset() argument
24 return hugepd_page(hpd) + idx; in hugepte_offset()
|
| /Linux-v6.1/Documentation/devicetree/bindings/display/bridge/ |
| D | analogix_dp.txt | 24 -force-hpd:
25 Indicate driver need force hpd when hpd detect failed, this
26 is used for some eDP screen which don't have hpd signal.
27 -hpd-gpios:
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| /Linux-v6.1/Documentation/devicetree/bindings/display/ti/ |
| D | ti,tpd12s015.txt | 8 - gpios: CT CP HPD, LS OE and HPD gpios
20 gpios = <&gpio2 28 GPIO_ACTIVE_HIGH>, /* 60, CT CP HPD */
22 <&gpio2 31 GPIO_ACTIVE_HIGH>; /* 63, HPD */
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| /Linux-v6.1/drivers/gpu/drm/ |
| D | drm_bridge_connector.c | 142 struct drm_bridge *hpd = bridge_connector->bridge_hpd; in drm_bridge_connector_enable_hpd() local
144 if (hpd) in drm_bridge_connector_enable_hpd()
145 drm_bridge_hpd_enable(hpd, drm_bridge_connector_hpd_cb, in drm_bridge_connector_enable_hpd()
162 struct drm_bridge *hpd = bridge_connector->bridge_hpd; in drm_bridge_connector_disable_hpd() local
164 if (hpd) in drm_bridge_connector_disable_hpd()
165 drm_bridge_hpd_disable(hpd); in drm_bridge_connector_disable_hpd()
208 struct drm_bridge *hpd = bridge_connector->bridge_hpd; in drm_bridge_connector_destroy() local
210 drm_bridge_hpd_disable(hpd); in drm_bridge_connector_destroy()
352 * bridges in the pipeline that support HPD and output detection. Then in drm_bridge_connector_init()
353 * initialise the connector polling mode, using HPD if available and in drm_bridge_connector_init()
[all …]
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| /Linux-v6.1/drivers/gpu/drm/amd/amdgpu/ |
| D | dce_v11_0.c | 90 uint32_t hpd; member
96 .hpd = DISP_INTERRUPT_STATUS__DC_HPD1_INTERRUPT_MASK
101 .hpd = DISP_INTERRUPT_STATUS_CONTINUE__DC_HPD2_INTERRUPT_MASK
106 .hpd = DISP_INTERRUPT_STATUS_CONTINUE2__DC_HPD3_INTERRUPT_MASK
111 .hpd = DISP_INTERRUPT_STATUS_CONTINUE3__DC_HPD4_INTERRUPT_MASK
116 .hpd = DISP_INTERRUPT_STATUS_CONTINUE4__DC_HPD5_INTERRUPT_MASK
121 .hpd = DISP_INTERRUPT_STATUS_CONTINUE5__DC_HPD6_INTERRUPT_MASK
292 * dce_v11_0_hpd_sense - hpd sense callback.
295 * @hpd: hpd (hotplug detect) pin
301 enum amdgpu_hpd_id hpd) in dce_v11_0_hpd_sense() argument
[all …]
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| D | dce_v10_0.c | 88 uint32_t hpd; member
94 .hpd = DISP_INTERRUPT_STATUS__DC_HPD1_INTERRUPT_MASK
99 .hpd = DISP_INTERRUPT_STATUS_CONTINUE__DC_HPD2_INTERRUPT_MASK
104 .hpd = DISP_INTERRUPT_STATUS_CONTINUE2__DC_HPD3_INTERRUPT_MASK
109 .hpd = DISP_INTERRUPT_STATUS_CONTINUE3__DC_HPD4_INTERRUPT_MASK
114 .hpd = DISP_INTERRUPT_STATUS_CONTINUE4__DC_HPD5_INTERRUPT_MASK
119 .hpd = DISP_INTERRUPT_STATUS_CONTINUE5__DC_HPD6_INTERRUPT_MASK
274 * dce_v10_0_hpd_sense - hpd sense callback.
277 * @hpd: hpd (hotplug detect) pin
283 enum amdgpu_hpd_id hpd) in dce_v10_0_hpd_sense() argument
[all …]
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| /Linux-v6.1/Documentation/userspace-api/media/cec/ |
| D | cec-ioc-dqevent.rst | 167 * .. _`CEC-EVENT-PIN-HPD-LOW`:
171 - Generated if the HPD pin goes from a high voltage to a low voltage.
173 capability set. When open() is called, the HPD pin can be read and
174 if the HPD is low, then an initial event will be generated for that
176 * .. _`CEC-EVENT-PIN-HPD-HIGH`:
180 - Generated if the HPD pin goes from a low voltage to a high voltage.
182 capability set. When open() is called, the HPD pin can be read and
183 if the HPD is high, then an initial event will be generated for that
|
| /Linux-v6.1/Documentation/devicetree/bindings/display/samsung/ |
| D | samsung,exynos-hdmi.yaml | 40 HPD (hot plug detect) line, what causes HDMI block to stay turned off.
41 When provided, the regulator allows TV-set correctly signal HPD event.
43 hpd-gpios:
46 A GPIO line connected to HPD
96 - hpd-gpios
203 hpd-gpios = <&gpa3 0 GPIO_ACTIVE_HIGH>;
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| /Linux-v6.1/drivers/gpu/drm/amd/display/dc/gpio/dce120/ |
| D | hw_factory_dce120.c | 42 #define block HPD
156 struct hw_hpd *hpd = HW_HPD_FROM_BASE(pin); in define_hpd_registers() local
158 hpd->regs = &hpd_regs[en]; in define_hpd_registers()
159 hpd->shifts = &hpd_shift; in define_hpd_registers()
160 hpd->masks = &hpd_mask; in define_hpd_registers()
161 hpd->base.regs = &hpd_regs[en].gpio; in define_hpd_registers()
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| /Linux-v6.1/drivers/gpu/drm/display/ |
| D | drm_dp_cec.c | 61 * When the EDID is unset because the HPD went low, then the CEC DPCD registers
63 * powered by the HPD). However, some displays toggle the HPD off and on for a
68 * actually unregistered. Only if the HPD does not return within that time will
75 * soon as the HPD disappears.
77 * The default is one second to prevent short HPD glitches from unregistering
81 * registers remain available even if the HPD goes low since it is not powered
82 * by the HPD. In that case the CEC adapter will never be unregistered during
280 * Called if the HPD was low for more than drm_dp_cec_unregister_delay
381 * The EDID disappeared (likely because of the HPD going down).
406 * seconds. This to debounce short HPD off-and-on cycles from in drm_dp_cec_unset_edid()
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| /Linux-v6.1/drivers/gpu/drm/msm/dp/ |
| D | dp_hpd.h | 45 int (*connect)(struct dp_usbpd *dp_usbpd, bool hpd);
64 * dp_hpd_get() - setup hpd module
70 * module. The module will communicate with HPD module.
76 int dp_hpd_connect(struct dp_usbpd *dp_usbpd, bool hpd);
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| /Linux-v6.1/Documentation/devicetree/bindings/display/exynos/ |
| D | exynos_dp.txt | 43 -samsung,hpd-gpio:
56 -hpd-gpios (optional)
57 force-hpd (optional)
69 -samsung,hpd-gpio: deprecated name for hpd-gpios.
|
