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/linux/Documentation/devicetree/bindings/sound/
H A Drt5663.txt27 The matrix row number of the impedance sensing table.
28 If the value is 0, it means the impedance sensing is not supported.
30 The matrix rows of the impedance sensing table are consisted by impedance
31 minimum, impedance maximum, volume, DC offset w/o and w/ mic of each L and
35 The first and second column are defined for the impedance range. If the
36 detected impedance value is in the range, then the volume value of the
41 impedance in the impedance sensing function.
H A Dnuvoton,nau8825.yaml34 If set - pin pull enabled, otherwise pin in high impedance state.
52 nuvoton,vref-impedance:
55 VREF Impedance selection.
89 Impedance threshold for each button. Array that contains up to 8 buttons
93 'nuvoton,sar-voltage', R - button impedance.
105 Button impedance measurement hysteresis.
111 Reference voltage for button impedance measurement.
222 nuvoton,vref-impedance = <2>;
224 // Setup 4 buttons impedance according to Android specification
H A Dcs43130.txt29 Boolean, define to enable headphone DC impedance measurement.
32 Boolean, define to enable headphone AC impedance measurement.
33 DC impedance must also be enabled for AC impedance measurement.
36 Define 2 DC impedance thresholds in ohms for HP output control.
40 Define the frequencies at which to measure HP AC impedance.
H A Dnuvoton,nau8824.yaml46 nuvoton,vref-impedance:
49 VREF Impedance selection.
83 Impedance threshold for each button. Array that contains up to 8 buttons
87 'nuvoton,sar-voltage', R - button impedance.
99 Button impedance measurement hysteresis.
105 Reference voltage for button impedance measurement.
178 nuvoton,vref-impedance = <2>;
181 // Setup 4 buttons impedance according to Android specification
H A Dcirrus,cs530x.yaml43 Sets input channels one and two to high impedance.
48 Sets input channels three and four to high impedance.
53 Sets input channels five and six to high impedance.
58 Sets input channels seven and eight to high impedance.
H A Dnuvoton,nau8325.yaml22 nuvoton,vref-impedance-ohms:
24 The vref impedance to be used in ohms. Middle of voltage enables
25 Tie-Off selection options. Due to the high impedance of the VREF
75 nuvoton,vref-impedance-ohms = <125000>;
H A Ddialog,da7219.yaml117 Impedance threshold for mic detection measurement (Ohms).
146 Impedance threshold between buttons A and D.
153 Impedance threshold between buttons D and B.
160 Impedance threshold between buttons B and C.
167 Impedance threshold between button C and Mic.
H A Dnuvoton,nau8821.yaml31 otherwise pin in high impedance state.
65 nuvoton,vref-impedance:
66 description: VMID Tie-off impedance select.
140 nuvoton,vref-impedance = <2>;
/linux/Documentation/devicetree/bindings/net/
H A Dti,dp83867.yaml44 ti,min-output-impedance:
47 MAC Interface Impedance control to set the programmable output impedance
50 ti,max-output-impedance:
53 MAC Interface Impedance control to set the programmable output impedance
56 ti,min-output-impedance, ti,max-output-impedance properties
58 cell takes precedence over ti,max-output-impedance, which in
59 turn takes precedence over ti,min-output-impedance.
136 ti,max-output-impedance;
H A Dti,dp83869.yaml34 ti,min-output-impedance:
37 MAC Interface Impedance control to set the programmable output impedance
40 ti,max-output-impedance:
43 MAC Interface Impedance control to set the programmable output impedance
95 ti,max-output-impedance;
/linux/drivers/phy/mediatek/
H A Dphy-mtk-hdmi-mt8195.c305 u8 impedance, impedance_en; in mtk_hdmi_pll_drv_setting() local
311 /* bias & impedance setting: in mtk_hdmi_pll_drv_setting()
312 * 3G < data rate <= 6G: enable impedance 100ohm, in mtk_hdmi_pll_drv_setting()
315 * enalbe impedance 100ohm in mtk_hdmi_pll_drv_setting()
317 * 27M =< pixel clk < 74.175: disable impedance in mtk_hdmi_pll_drv_setting()
326 impedance = 0x36; /* 100ohm */ in mtk_hdmi_pll_drv_setting()
331 impedance = 0x36; /* 100ohm */ in mtk_hdmi_pll_drv_setting()
336 impedance = 0x0; in mtk_hdmi_pll_drv_setting()
347 /* impedance */ in mtk_hdmi_pll_drv_setting()
349 mtk_phy_update_field(regs + HDMI_1_CFG_2, RG_HDMITX21_DRV_IMP_D0_EN1, impedance); in mtk_hdmi_pll_drv_setting()
[all …]
H A Dphy-mtk-pcie.c24 /* TX PMOS impedance selection */
26 /* TX NMOS impedance selection */
30 /* RX impedance selection */
37 * @tx_pmos: TX PMOS impedance selection data
38 * @tx_nmos: TX NMOS impedance selection data
39 * @rx_data: RX impedance selection data
/linux/include/dt-bindings/sound/
H A Dcs35l45.h14 * TX_HIZ_UNUSED: TX pin high-impedance during unused slots.
15 * TX_HIZ_DISABLED: TX pin high-impedance when all channels disabled.
56 * 0 = High impedance input (Default)
62 * 0 = High impedance input (Default)
71 * 0 = High impedance input (Default)
/linux/Documentation/devicetree/bindings/phy/
H A Dphy-stm32-usbphyc.yaml150 st,trim-hs-impedance:
152 Controls HS driver impedance tuning for choke compensation
153 - <0> = no impedance offset
154 - <1> = reduce the impedance by 2 ohms
155 - <2> = reduce the impedance by 4 ohms
156 - <3> = reduce the impedance by 6 ohms
262 st,trim-hs-impedance = <1>;
280 st,trim-hs-impedance = <1>;
H A Drockchip,rk3399-emmc-phy.yaml25 drive-impedance-ohm:
28 Specifies the drive impedance in Ohm.
62 drive-impedance-ohm = <50>;
/linux/drivers/staging/iio/impedance-analyzer/
H A DKconfig3 # Impedance Converter, Network Analyzer drivers
5 menu "Network Analyzer, Impedance Converters"
13 Say yes here to build support for Analog Devices Impedance Converter,
/linux/arch/arm64/boot/dts/qcom/
H A Dmsm8996-sony-xperia-tone.dtsi244 bias-high-impedance;
290 bias-high-impedance;
309 bias-high-impedance;
319 bias-high-impedance;
338 bias-high-impedance;
346 bias-high-impedance;
365 bias-high-impedance;
375 bias-high-impedance;
390 bias-high-impedance;
409 bias-high-impedance;
[all …]
/linux/arch/arm64/boot/dts/xilinx/
H A Dzynqmp-zc1751-xm015-dc1.dts178 bias-high-impedance;
200 bias-high-impedance;
229 bias-high-impedance;
273 bias-high-impedance;
286 bias-high-impedance;
313 bias-high-impedance;
326 bias-high-impedance;
H A Dzynqmp-zc1751-xm016-dc2.dts176 bias-high-impedance;
199 bias-high-impedance;
249 bias-high-impedance;
272 bias-high-impedance;
294 bias-high-impedance;
323 bias-high-impedance;
/linux/Documentation/devicetree/bindings/iio/impedance-analyzer/
H A Dadi,ad5933.yaml4 $id: http://devicetree.org/schemas/iio/impedance-analyzer/adi,ad5933.yaml#
7 title: Analog Devices AD5933/AD5934 Impedance Converter, Network Analyzer
51 impedance-analyzer@d {
/linux/arch/arm/boot/dts/xilinx/
H A Dzynq-zc706.dts158 bias-high-impedance;
238 bias-high-impedance;
251 bias-high-impedance;
272 bias-high-impedance;
295 bias-high-impedance;
H A Dzynq-zc702.dts218 bias-high-impedance;
241 bias-high-impedance;
338 bias-high-impedance;
351 bias-high-impedance;
372 bias-high-impedance;
395 bias-high-impedance;
/linux/Documentation/hwmon/
H A Dda9055.rst25 - Channel 1: ADC_IN1 - high impedance input (0 - 2.5V)
26 - Channel 2: ADC_IN2 - high impedance input (0 - 2.5V)
27 - Channel 3: ADC_IN3 - high impedance input (0 - 2.5V)
/linux/Documentation/devicetree/bindings/leds/
H A Dleds-lm3532.txt36 - ti,als1-imp-sel - ALS1 impedance resistor selection in Ohms
37 - ti,als2-imp-sel - ALS2 impedance resistor selection in Ohms
38 Range for impedance select: 37000 Ohms - 1190 Ohms
39 Values above 37kohms will be set to the "High Impedance" setting
/linux/include/soc/at91/
H A Dsama7-ddr.h44 #define DDR3PHY_ZQ0SR0_PDO_OFF (0) /* Pull-down output impedance select offset */
45 #define DDR3PHY_ZQ0SR0_PUO_OFF (5) /* Pull-up output impedance select offset */
46 #define DDR3PHY_ZQ0SR0_PDODT_OFF (10) /* Pull-down on-die termination impedance select offset */
47 #define DDR3PHY_ZQ0SRO_PUODT_OFF (15) /* Pull-up on-die termination impedance select offset */

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