Searched +full:bus +full:- +full:capacitance +full:- +full:pf (Results 1 – 3 of 3) sorted by relevance
| /freebsd/sys/contrib/device-tree/Bindings/i2c/ |
| H A D | snps,designware-i2c.yaml | 1 # SPDX-License-Identifier: GPL-2.0-only
3 ---
4 $id: http://devicetree.org/schemas/i2c/snps,designware-i2c.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Jarkko Nikula <jarkko.nikula@linux.intel.com>
13 - $ref: /schemas/i2c/i2c-controller.yaml#
14 - if:
19 const: mscc,ocelot-i2c
28 - description: Generic Synopsys DesignWare I2C controller
29 const: snps,designware-i2c
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| /freebsd/sys/contrib/device-tree/Bindings/net/ieee802154/ |
| H A D | at86rf230.txt | 4 - compatible: should be "atmel,at86rf230", "atmel,at86rf231",
6 - spi-max-frequency: maximal bus speed, should be set to 7500000 depends
8 - reg: the chipselect index
9 - interrupts: the interrupt generated by the device. Non high-level
13 - reset-gpio: GPIO spec for the rstn pin
14 - sleep-gpio: GPIO spec for the slp_tr pin
15 - xtal-trim: u8 value for fine tuning the internal capacitance
16 arrays of xtal pins: 0 = +0 pF, 0xf = +4.5 pF
22 spi-max-frequency = <7500000>;
25 interrupt-parent = <&gpio3>;
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| /freebsd/sys/arm/ti/ |
| H A D | ti_i2c.c | 1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
46 #include <sys/bus.h>
56 #include <machine/bus.h>
99 u_int frequency; /* Bus frequency in Hz */
109 * AM335x i2c bus clock is 48MHZ / ((psc + 1) * (scll + 7 + sclh + 5))
123 #define TI_I2C_LOCK(_sc) mtx_lock(&(_sc)->sc_mtx)
124 #define TI_I2C_UNLOCK(_sc) mtx_unlock(&(_sc)->sc_mtx)
126 mtx_init(&_sc->sc_mtx, device_get_nameunit(_sc->sc_dev), \
128 #define TI_I2C_LOCK_DESTROY(_sc) mtx_destroy(&_sc->sc_mtx)
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