| /Linux-v5.15/drivers/i2c/busses/ |
| D | i2c-npcm7xx.c | 30 * of the bus.
143 #define NPCM_I2CT_OUT 0x14 /* Bus T.O. */
319 static inline void npcm_i2c_select_bank(struct npcm_i2c *bus, in npcm_i2c_select_bank() argument
322 u8 i2cctl3 = ioread8(bus->reg + NPCM_I2CCTL3); in npcm_i2c_select_bank()
328 iowrite8(i2cctl3, bus->reg + NPCM_I2CCTL3); in npcm_i2c_select_bank()
331 static void npcm_i2c_init_params(struct npcm_i2c *bus) in npcm_i2c_init_params() argument
333 bus->stop_ind = I2C_NO_STATUS_IND; in npcm_i2c_init_params()
334 bus->rd_size = 0; in npcm_i2c_init_params()
335 bus->wr_size = 0; in npcm_i2c_init_params()
336 bus->rd_ind = 0; in npcm_i2c_init_params()
[all …]
|
| D | i2c-aspeed.c | 173 static int aspeed_i2c_reset(struct aspeed_i2c_bus *bus);
175 static int aspeed_i2c_recover_bus(struct aspeed_i2c_bus *bus) in aspeed_i2c_recover_bus() argument
181 spin_lock_irqsave(&bus->lock, flags); in aspeed_i2c_recover_bus()
182 command = readl(bus->base + ASPEED_I2C_CMD_REG); in aspeed_i2c_recover_bus()
185 /* Bus is idle: no recovery needed. */ in aspeed_i2c_recover_bus()
188 dev_dbg(bus->dev, "SCL hung (state %x), attempting recovery\n", in aspeed_i2c_recover_bus()
191 reinit_completion(&bus->cmd_complete); in aspeed_i2c_recover_bus()
192 writel(ASPEED_I2CD_M_STOP_CMD, bus->base + ASPEED_I2C_CMD_REG); in aspeed_i2c_recover_bus()
193 spin_unlock_irqrestore(&bus->lock, flags); in aspeed_i2c_recover_bus()
196 &bus->cmd_complete, bus->adap.timeout); in aspeed_i2c_recover_bus()
[all …]
|
| /Linux-v5.15/sound/hda/ |
| D | hdac_controller.c | 15 static void azx_clear_corbrp(struct hdac_bus *bus) in azx_clear_corbrp() argument
20 if (snd_hdac_chip_readw(bus, CORBRP) & AZX_CORBRP_RST) in azx_clear_corbrp()
25 dev_err(bus->dev, "CORB reset timeout#1, CORBRP = %d\n", in azx_clear_corbrp()
26 snd_hdac_chip_readw(bus, CORBRP)); in azx_clear_corbrp()
28 snd_hdac_chip_writew(bus, CORBRP, 0); in azx_clear_corbrp()
30 if (snd_hdac_chip_readw(bus, CORBRP) == 0) in azx_clear_corbrp()
35 dev_err(bus->dev, "CORB reset timeout#2, CORBRP = %d\n", in azx_clear_corbrp()
36 snd_hdac_chip_readw(bus, CORBRP)); in azx_clear_corbrp()
41 * @bus: HD-audio core bus
43 void snd_hdac_bus_init_cmd_io(struct hdac_bus *bus) in snd_hdac_bus_init_cmd_io() argument
[all …]
|
| D | hdac_bus.c | 3 * HD-audio core bus driver
24 * snd_hdac_bus_init - initialize a HD-audio bas bus
25 * @bus: the pointer to bus object
27 * @ops: bus verb operators
31 int snd_hdac_bus_init(struct hdac_bus *bus, struct device *dev, in snd_hdac_bus_init() argument
34 memset(bus, 0, sizeof(*bus)); in snd_hdac_bus_init()
35 bus->dev = dev; in snd_hdac_bus_init()
37 bus->ops = ops; in snd_hdac_bus_init()
39 bus->ops = &default_ops; in snd_hdac_bus_init()
40 bus->dma_type = SNDRV_DMA_TYPE_DEV; in snd_hdac_bus_init()
[all …]
|
| /Linux-v5.15/sound/i2c/ |
| D | i2c.c | 25 static int snd_i2c_bit_probeaddr(struct snd_i2c_bus *bus,
34 static int snd_i2c_bus_free(struct snd_i2c_bus *bus) in snd_i2c_bus_free() argument
39 if (snd_BUG_ON(!bus)) in snd_i2c_bus_free()
41 while (!list_empty(&bus->devices)) { in snd_i2c_bus_free()
42 device = snd_i2c_device(bus->devices.next); in snd_i2c_bus_free()
45 if (bus->master) in snd_i2c_bus_free()
46 list_del(&bus->buses); in snd_i2c_bus_free()
48 while (!list_empty(&bus->buses)) { in snd_i2c_bus_free()
49 slave = snd_i2c_slave_bus(bus->buses.next); in snd_i2c_bus_free()
50 snd_device_free(bus->card, slave); in snd_i2c_bus_free()
[all …]
|
| /Linux-v5.15/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/ |
| D | bit.c | 24 #include "bus.h"
32 nvkm_i2c_drive_scl(struct nvkm_i2c_bus *bus, int state) in nvkm_i2c_drive_scl() argument
34 bus->func->drive_scl(bus, state); in nvkm_i2c_drive_scl()
38 nvkm_i2c_drive_sda(struct nvkm_i2c_bus *bus, int state) in nvkm_i2c_drive_sda() argument
40 bus->func->drive_sda(bus, state); in nvkm_i2c_drive_sda()
44 nvkm_i2c_sense_scl(struct nvkm_i2c_bus *bus) in nvkm_i2c_sense_scl() argument
46 return bus->func->sense_scl(bus); in nvkm_i2c_sense_scl()
50 nvkm_i2c_sense_sda(struct nvkm_i2c_bus *bus) in nvkm_i2c_sense_sda() argument
52 return bus->func->sense_sda(bus); in nvkm_i2c_sense_sda()
56 nvkm_i2c_delay(struct nvkm_i2c_bus *bus, u32 nsec) in nvkm_i2c_delay() argument
[all …]
|
| D | bus.c | 24 #include "bus.h"
35 struct nvkm_i2c_bus *bus = container_of(adap, typeof(*bus), i2c); in nvkm_i2c_bus_pre_xfer() local
36 return nvkm_i2c_bus_acquire(bus); in nvkm_i2c_bus_pre_xfer()
42 struct nvkm_i2c_bus *bus = container_of(adap, typeof(*bus), i2c); in nvkm_i2c_bus_post_xfer() local
43 return nvkm_i2c_bus_release(bus); in nvkm_i2c_bus_post_xfer()
49 struct nvkm_i2c_bus *bus = data; in nvkm_i2c_bus_setscl() local
50 bus->func->drive_scl(bus, state); in nvkm_i2c_bus_setscl()
56 struct nvkm_i2c_bus *bus = data; in nvkm_i2c_bus_setsda() local
57 bus->func->drive_sda(bus, state); in nvkm_i2c_bus_setsda()
63 struct nvkm_i2c_bus *bus = data; in nvkm_i2c_bus_getscl() local
[all …]
|
| /Linux-v5.15/drivers/ssb/ |
| D | driver_gpio.c | 28 struct ssb_bus *bus = gpiochip_get_data(chip); in ssb_gpio_to_irq() local
30 if (bus->bustype == SSB_BUSTYPE_SSB) in ssb_gpio_to_irq()
31 return irq_find_mapping(bus->irq_domain, gpio); in ssb_gpio_to_irq()
43 struct ssb_bus *bus = gpiochip_get_data(chip); in ssb_gpio_chipco_get_value() local
45 return !!ssb_chipco_gpio_in(&bus->chipco, 1 << gpio); in ssb_gpio_chipco_get_value()
51 struct ssb_bus *bus = gpiochip_get_data(chip); in ssb_gpio_chipco_set_value() local
53 ssb_chipco_gpio_out(&bus->chipco, 1 << gpio, value ? 1 << gpio : 0); in ssb_gpio_chipco_set_value()
59 struct ssb_bus *bus = gpiochip_get_data(chip); in ssb_gpio_chipco_direction_input() local
61 ssb_chipco_gpio_outen(&bus->chipco, 1 << gpio, 0); in ssb_gpio_chipco_direction_input()
68 struct ssb_bus *bus = gpiochip_get_data(chip); in ssb_gpio_chipco_direction_output() local
[all …]
|
| D | scan.c | 3 * Bus scanning
160 static u32 scan_read32(struct ssb_bus *bus, u8 current_coreidx, in scan_read32() argument
165 switch (bus->bustype) { in scan_read32()
173 ssb_pcmcia_switch_segment(bus, 1); in scan_read32()
176 ssb_pcmcia_switch_segment(bus, 0); in scan_read32()
177 lo = readw(bus->mmio + offset); in scan_read32()
178 hi = readw(bus->mmio + offset + 2); in scan_read32()
182 return ssb_sdio_scan_read32(bus, offset); in scan_read32()
184 return readl(bus->mmio + offset); in scan_read32()
187 static int scan_switchcore(struct ssb_bus *bus, u8 coreidx) in scan_switchcore() argument
[all …]
|
| D | embedded.c | 23 int ssb_watchdog_timer_set(struct ssb_bus *bus, u32 ticks) in ssb_watchdog_timer_set() argument
25 if (ssb_chipco_available(&bus->chipco)) { in ssb_watchdog_timer_set()
26 ssb_chipco_watchdog_timer_set(&bus->chipco, ticks); in ssb_watchdog_timer_set()
29 if (ssb_extif_available(&bus->extif)) { in ssb_watchdog_timer_set()
30 ssb_extif_watchdog_timer_set(&bus->extif, ticks); in ssb_watchdog_timer_set()
37 int ssb_watchdog_register(struct ssb_bus *bus) in ssb_watchdog_register() argument
42 if (ssb_chipco_available(&bus->chipco)) { in ssb_watchdog_register()
43 wdt.driver_data = &bus->chipco; in ssb_watchdog_register()
46 wdt.max_timer_ms = bus->chipco.max_timer_ms; in ssb_watchdog_register()
47 } else if (ssb_extif_available(&bus->extif)) { in ssb_watchdog_register()
[all …]
|
| D | sdio.c | 104 static inline struct device *ssb_sdio_dev(struct ssb_bus *bus) in ssb_sdio_dev() argument
106 return &bus->host_sdio->dev; in ssb_sdio_dev()
110 static int ssb_sdio_writeb(struct ssb_bus *bus, unsigned int addr, u8 val) in ssb_sdio_writeb() argument
114 sdio_writeb(bus->host_sdio, val, addr, &error); in ssb_sdio_writeb()
116 dev_dbg(ssb_sdio_dev(bus), "%08X <- %02x, error %d\n", in ssb_sdio_writeb()
124 static u8 ssb_sdio_readb(struct ssb_bus *bus, unsigned int addr)
129 val = sdio_readb(bus->host_sdio, addr, &error);
131 dev_dbg(ssb_sdio_dev(bus), "%08X -> %02x, error %d\n",
140 static int ssb_sdio_set_sbaddr_window(struct ssb_bus *bus, u32 address) in ssb_sdio_set_sbaddr_window() argument
144 error = ssb_sdio_writeb(bus, SBSDIO_FUNC1_SBADDRLOW, in ssb_sdio_set_sbaddr_window()
[all …]
|
| /Linux-v5.15/Documentation/ABI/testing/ |
| D | sysfs-bus-i3c | 1 What: /sys/bus/i3c/devices/i3c-<bus-id>
5 An I3C bus. This directory will contain one sub-directory per
6 I3C device present on the bus.
8 What: /sys/bus/i3c/devices/i3c-<bus-id>/current_master
12 Expose the master that owns the bus (<bus-id>-<master-pid>) at
13 the time this file is read. Note that bus ownership can change
17 What: /sys/bus/i3c/devices/i3c-<bus-id>/mode
21 I3C bus mode. Can be "pure", "mixed-fast" or "mixed-slow". See
25 What: /sys/bus/i3c/devices/i3c-<bus-id>/i3c_scl_frequency
32 What: /sys/bus/i3c/devices/i3c-<bus-id>/i2c_scl_frequency
[all …]
|
| D | sysfs-bus-soundwire-slave | 1 What: /sys/bus/soundwire/devices/sdw:.../status
2 /sys/bus/soundwire/devices/sdw:.../device_number
16 physically present on the bus, and conversely devices
19 What: /sys/bus/soundwire/devices/sdw:.../dev-properties/mipi_revision
20 /sys/bus/soundwire/devices/sdw:.../dev-properties/wake_capable
21 /sys/bus/soundwire/devices/sdw:.../dev-properties/test_mode_capable
22 /sys/bus/soundwire/devices/sdw:.../dev-properties/clk_stop_mode1
23 /sys/bus/soundwire/devices/sdw:.../dev-properties/simple_clk_stop_capable
24 /sys/bus/soundwire/devices/sdw:.../dev-properties/clk_stop_timeout
25 /sys/bus/soundwire/devices/sdw:.../dev-properties/ch_prep_timeout
[all …]
|
| /Linux-v5.15/drivers/net/wireless/broadcom/brcm80211/brcmfmac/ |
| D | sdio.c | 112 #include "bus.h"
149 * sdio bus power cycle to clear (rev 9) */
224 #define I_BUSPWR (1 << 17) /* SDIO Bus Power Change (rev 9) */
391 /* dongle SDIO bus specific header info */
438 /* Private data for SDIO bus interaction */
478 u8 sdpcm_ver; /* Bus protocol reported by dongle */
496 s32 idleclock; /* How to set bus driver when idle */
506 spinlock_t txq_lock; /* protect bus->txq */
525 u8 tx_hdrlen; /* sdio bus header length for tx packet */
676 static bool data_ok(struct brcmf_sdio *bus) in data_ok() argument
[all …]
|
| D | bus.h | 25 /* The level of bus communication with the dongle */
31 /* The level of bus communication with the dongle */
47 * struct brcmf_bus_ops - bus callback operations.
49 * @preinit: execute bus/device specific dongle init commands (optional).
59 * @gettxq: obtain a reference of bus transmit queue (optional).
66 * bus specific driver. For control messages to common driver
88 * struct brcmf_bus_msgbuf - bus ringbuf if in case of msgbuf.
110 * struct brcmf_bus_stats - bus statistic counters.
121 * struct brcmf_bus - interface structure between common and bus layer
123 * @bus_priv: pointer to private bus device.
[all …]
|
| /Linux-v5.15/drivers/devfreq/ |
| D | exynos-bus.c | 3 * Generic Exynos Bus frequency driver with DEVFREQ Framework
8 * This driver support Exynos Bus frequency feature by using
42 * Control the devfreq-event device to get the current state of bus
45 static int exynos_bus_##ops(struct exynos_bus *bus) \
49 for (i = 0; i < bus->edev_count; i++) { \
50 if (!bus->edev[i]) \
52 ret = devfreq_event_##ops(bus->edev[i]); \
63 static int exynos_bus_get_event(struct exynos_bus *bus, in exynos_bus_get_event() argument
70 for (i = 0; i < bus->edev_count; i++) { in exynos_bus_get_event()
71 if (!bus->edev[i]) in exynos_bus_get_event()
[all …]
|
| /Linux-v5.15/sound/soc/intel/skylake/ |
| D | skl.c | 58 struct hdac_bus *bus = skl_to_bus(skl); in skl_init_pci() local
67 dev_dbg(bus->dev, "Clearing TCSEL\n"); in skl_init_pci()
107 struct hdac_bus *bus = pci_get_drvdata(pci); in skl_clock_power_gating() local
116 snd_hdac_chip_updatel(bus, VS_EM2, AZX_REG_VS_EM2_L1SEN, val); in skl_clock_power_gating()
128 static int skl_init_chip(struct hdac_bus *bus, bool full_reset) in skl_init_chip() argument
133 snd_hdac_set_codec_wakeup(bus, true); in skl_init_chip()
134 skl_enable_miscbdcge(bus->dev, false); in skl_init_chip()
135 ret = snd_hdac_bus_init_chip(bus, full_reset); in skl_init_chip()
138 list_for_each_entry(hlink, &bus->hlink_list, list) in skl_init_chip()
141 skl_enable_miscbdcge(bus->dev, true); in skl_init_chip()
[all …]
|
| /Linux-v5.15/drivers/net/phy/ |
| D | sfp-bus.c | 20 * struct sfp_bus - internal representation of a sfp bus
124 * @bus: a pointer to the &struct sfp_bus structure for the sfp module
136 int sfp_parse_port(struct sfp_bus *bus, const struct sfp_eeprom_id *id, in sfp_parse_port() argument
175 dev_warn(bus->sfp_dev, "SFP: unknown connector id 0x%02x\n", in sfp_parse_port()
199 * @bus: a pointer to the &struct sfp_bus structure for the sfp module
205 bool sfp_may_have_phy(struct sfp_bus *bus, const struct sfp_eeprom_id *id) in sfp_may_have_phy() argument
226 * @bus: a pointer to the &struct sfp_bus structure for the sfp module
233 void sfp_parse_support(struct sfp_bus *bus, const struct sfp_eeprom_id *id, in sfp_parse_support() argument
341 dev_warn(bus->sfp_dev, in sfp_parse_support()
373 if (bus->sfp_quirk) in sfp_parse_support()
[all …]
|
| D | mdio_bus.c | 2 /* MDIO Bus interface
74 if (mdiodev->bus->mdio_map[mdiodev->addr]) in mdiobus_register_device()
90 mdiodev->bus->mdio_map[mdiodev->addr] = mdiodev; in mdiobus_register_device()
98 if (mdiodev->bus->mdio_map[mdiodev->addr] != mdiodev) in mdiobus_unregister_device()
103 mdiodev->bus->mdio_map[mdiodev->addr] = NULL; in mdiobus_unregister_device()
109 struct phy_device *mdiobus_get_phy(struct mii_bus *bus, int addr) in mdiobus_get_phy() argument
111 struct mdio_device *mdiodev = bus->mdio_map[addr]; in mdiobus_get_phy()
123 bool mdiobus_is_registered_device(struct mii_bus *bus, int addr) in mdiobus_is_registered_device() argument
125 return bus->mdio_map[addr]; in mdiobus_is_registered_device()
132 * If non-zero, then bus->priv is points to that memory.
[all …]
|
| /Linux-v5.15/drivers/bcma/ |
| D | main.c | 3 * Bus subsystem
22 /* contains the number the next bus should get. */
79 static u16 bcma_cc_core_id(struct bcma_bus *bus) in bcma_cc_core_id() argument
81 if (bus->chipinfo.id == BCMA_CHIP_ID_BCM4706) in bcma_cc_core_id()
86 struct bcma_device *bcma_find_core_unit(struct bcma_bus *bus, u16 coreid, in bcma_find_core_unit() argument
91 list_for_each_entry(core, &bus->cores, list) { in bcma_find_core_unit()
113 bcma_warn(core->bus, "Timeout waiting for register 0x%04X!\n", reg); in bcma_wait_value()
191 bcma_debug(core->bus, "bcma_of_get_irq() failed with rc=%d\n", in bcma_of_get_irq()
215 struct bcma_bus *bus = core->bus; in bcma_core_irq() local
218 switch (bus->hosttype) { in bcma_core_irq()
[all …]
|
| /Linux-v5.15/arch/powerpc/platforms/pasemi/ |
| D | gpio_mdio.c | 34 #define MDC_PIN(bus) (((struct gpio_priv *)bus->priv)->mdc_pin) argument
35 #define MDIO_PIN(bus) (((struct gpio_priv *)bus->priv)->mdio_pin) argument
37 static inline void mdio_lo(struct mii_bus *bus) in mdio_lo() argument
39 out_le32(gpio_regs+0x10, 1 << MDIO_PIN(bus)); in mdio_lo()
42 static inline void mdio_hi(struct mii_bus *bus) in mdio_hi() argument
44 out_le32(gpio_regs, 1 << MDIO_PIN(bus)); in mdio_hi()
47 static inline void mdc_lo(struct mii_bus *bus) in mdc_lo() argument
49 out_le32(gpio_regs+0x10, 1 << MDC_PIN(bus)); in mdc_lo()
52 static inline void mdc_hi(struct mii_bus *bus) in mdc_hi() argument
54 out_le32(gpio_regs, 1 << MDC_PIN(bus)); in mdc_hi()
[all …]
|
| /Linux-v5.15/drivers/staging/wfx/ |
| D | bus_sdio.c | 16 #include "bus.h"
38 struct wfx_sdio_priv *bus = priv; in wfx_sdio_copy_from_io() local
48 sdio_addr |= (bus->buf_id_rx + 1) << 7; in wfx_sdio_copy_from_io()
49 ret = sdio_memcpy_fromio(bus->func, dst, sdio_addr, count); in wfx_sdio_copy_from_io()
51 bus->buf_id_rx = (bus->buf_id_rx + 1) % 4; in wfx_sdio_copy_from_io()
59 struct wfx_sdio_priv *bus = priv; in wfx_sdio_copy_to_io() local
69 sdio_addr |= bus->buf_id_tx << 7; in wfx_sdio_copy_to_io()
71 ret = sdio_memcpy_toio(bus->func, sdio_addr, (void *)src, count); in wfx_sdio_copy_to_io()
73 bus->buf_id_tx = (bus->buf_id_tx + 1) % 32; in wfx_sdio_copy_to_io()
80 struct wfx_sdio_priv *bus = priv; in wfx_sdio_lock() local
[all …]
|
| /Linux-v5.15/drivers/net/wireless/quantenna/qtnfmac/ |
| D | bus.h | 44 int (*data_tx)(struct qtnf_bus *bus, struct sk_buff *skb,
47 void (*data_tx_use_meta_set)(struct qtnf_bus *bus, bool use_meta);
71 /* bus private data */
75 static inline bool qtnf_fw_is_up(struct qtnf_bus *bus) in qtnf_fw_is_up() argument
77 enum qtnf_fw_state state = bus->fw_state; in qtnf_fw_is_up()
83 static inline bool qtnf_fw_is_attached(struct qtnf_bus *bus) in qtnf_fw_is_attached() argument
85 enum qtnf_fw_state state = bus->fw_state; in qtnf_fw_is_attached()
92 static inline void *get_bus_priv(struct qtnf_bus *bus) in get_bus_priv() argument
94 if (WARN(!bus, "qtnfmac: invalid bus pointer")) in get_bus_priv()
97 return &bus->bus_priv; in get_bus_priv()
[all …]
|
| /Linux-v5.15/Documentation/i2c/ |
| D | i2c-sysfs.rst | 12 kernel abstracts the MUX channels into logical I2C bus numbers. However, there
13 is a gap of knowledge to map from the I2C bus physical number and MUX topology
14 to logical I2C bus number. This doc is aimed to fill in this gap, so the
38 so you can find the I2C Sysfs under ``/sys/bus/i2c/devices``
43 the first number is I2C bus number, and the second number is I2C address.
47 blueline:/sys/bus/i2c/devices $ ls
51 ``i2c-2`` is an I2C bus whose number is 2, and ``2-0049`` is an I2C device
52 on bus 2 address 0x49 bound with a kernel driver.
60 (Physical) I2C Bus Controller
64 physical I2C bus controllers. The controllers are hardware and physical, and the
[all …]
|
| /Linux-v5.15/sound/hda/ext/ |
| D | hdac_ext_stream.c | 20 * @bus: HD-audio core bus
29 void snd_hdac_ext_stream_init(struct hdac_bus *bus, in snd_hdac_ext_stream_init() argument
33 if (bus->ppcap) { in snd_hdac_ext_stream_init()
34 stream->pphc_addr = bus->ppcap + AZX_PPHC_BASE + in snd_hdac_ext_stream_init()
37 stream->pplc_addr = bus->ppcap + AZX_PPLC_BASE + in snd_hdac_ext_stream_init()
38 AZX_PPLC_MULTI * bus->num_streams + in snd_hdac_ext_stream_init()
42 if (bus->spbcap) { in snd_hdac_ext_stream_init()
43 stream->spib_addr = bus->spbcap + AZX_SPB_BASE + in snd_hdac_ext_stream_init()
47 stream->fifo_addr = bus->spbcap + AZX_SPB_BASE + in snd_hdac_ext_stream_init()
52 if (bus->drsmcap) in snd_hdac_ext_stream_init()
[all …]
|
