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/openbmc/linux/Documentation/devicetree/bindings/iio/dac/
H A Dmicrochip,mcp4725.yaml24 For the mcp4726 it will be used as the reference voltage if vref-supply
27 vref-supply:
29 Vref pin is used as a voltage reference when this supply is specified.
31 microchip,vref-buffered:
34 Enable buffering of the external Vref pin. This boolean is not valid
35 without the vref-supply. Quoting the datasheet: This is offered in
48 vref-supply: false
62 - vref-supply
67 - vref-supply
70 microchip,vref-buffered: false
H A Dlltc,ltc2632.yaml44 vref-supply:
47 only be set if there is an external reference voltage connected to the VREF
58 vref: regulator-vref {
60 regulator-name = "vref-ltc2632";
74 vref-supply = <&vref>;
H A Ddpot-dac.yaml15 divided voltage is provided by a vref regulator.
19 | vref |--' .---.
34 vref-supply:
50 - vref-supply
60 vref-supply = <&reg_3v3>;
H A Dadi,ad5064.yaml96 vref-supply: true
104 - # Shared external vref, no internal reference
123 vref-supply: true
129 - vref-supply
130 - # Shared external vref, internal reference available
183 vref-supply: true
206 vref-supply: false
227 vref-supply: false
242 vref-supply = <&dac_vref>;
H A Dadi,ad5449.yaml30 VREF-supply: true
50 VREF-supply: true
54 - VREF-supply
65 VREF-supply: false
82 VREF-supply = <&dac_ref>;
/openbmc/u-boot/drivers/ddr/marvell/a38x/
H A Dddr3_training_hw_algo.c150 * The Vref register have non linear order. Need to check what will be in ddr3_tip_vref()
177 /* set vref as centralization pattern */ in ddr3_tip_vref()
196 ("VREF config, IF[ %d ]pup[ %d ] - Vref tune not requered (%d)\n", in ddr3_tip_vref()
211 ("VREF config, IF[ %d ]pup[ %d ] - Vref = %X (%d)\n", in ddr3_tip_vref()
288 ("I/F[ %d ], pup[ %d ] CHECK progress - Current %d Last %d, limit VREF %d (%d)\n", in ddr3_tip_vref()
306 * size (take the max) and Vref in ddr3_tip_vref()
314 * better Vref value in ddr3_tip_vref()
318 * Vref. in ddr3_tip_vref()
328 ("I/F[ %d ], pup[ %d ] VREF_CONVERGE - Vref = %X (%d)\n", in ddr3_tip_vref()
334 /* continue to update the Vref index */ in ddr3_tip_vref()
[all …]
/openbmc/linux/drivers/iio/dac/
H A Dstm32-dac-core.c23 * @vref: regulator reference
28 struct regulator *vref; member
58 ret = regulator_enable(priv->vref); in stm32_dac_core_hw_start()
60 dev_err(dev, "vref enable failed: %d\n", ret); in stm32_dac_core_hw_start()
73 regulator_disable(priv->vref); in stm32_dac_core_hw_start()
84 regulator_disable(priv->vref); in stm32_dac_core_hw_stop()
122 priv->vref = devm_regulator_get(dev, "vref"); in stm32_dac_probe()
123 if (IS_ERR(priv->vref)) in stm32_dac_probe()
124 return dev_err_probe(dev, PTR_ERR(priv->vref), "vref get failed\n"); in stm32_dac_probe()
134 ret = regulator_get_voltage(priv->vref); in stm32_dac_probe()
[all …]
H A Ddpot-dac.c13 * divided voltage is provided by a vref regulator.
17 * | vref |--' .---.
38 struct regulator *vref; member
70 tmp *= regulator_get_voltage(dac->vref) / 1000; in dpot_dac_read_raw()
84 *val *= regulator_get_voltage(dac->vref) / 1000; in dpot_dac_read_raw()
186 dac->vref = devm_regulator_get(dev, "vref"); in dpot_dac_probe()
187 if (IS_ERR(dac->vref)) in dpot_dac_probe()
188 return dev_err_probe(&pdev->dev, PTR_ERR(dac->vref), in dpot_dac_probe()
189 "failed to get vref regulator\n"); in dpot_dac_probe()
210 ret = regulator_enable(dac->vref); in dpot_dac_probe()
[all …]
H A Dlpc18xx_dac.c33 struct regulator *vref; member
64 *val = regulator_get_voltage(dac->vref) / 1000; in lpc18xx_dac_read_raw()
127 dac->vref = devm_regulator_get(&pdev->dev, "vref"); in lpc18xx_dac_probe()
128 if (IS_ERR(dac->vref)) in lpc18xx_dac_probe()
129 return dev_err_probe(&pdev->dev, PTR_ERR(dac->vref), in lpc18xx_dac_probe()
138 ret = regulator_enable(dac->vref); in lpc18xx_dac_probe()
164 regulator_disable(dac->vref); in lpc18xx_dac_probe()
177 regulator_disable(dac->vref); in lpc18xx_dac_remove()
H A Dti-dac7311.c39 * @vref: regulator generating Vref
49 struct regulator *vref; member
179 ret = regulator_get_voltage(ti_dac->vref); in ti_dac_read_raw()
268 ti_dac->vref = devm_regulator_get(dev, "vref"); in ti_dac_probe()
269 if (IS_ERR(ti_dac->vref)) in ti_dac_probe()
270 return dev_err_probe(dev, PTR_ERR(ti_dac->vref), in ti_dac_probe()
273 ret = regulator_enable(ti_dac->vref); in ti_dac_probe()
291 regulator_disable(ti_dac->vref); in ti_dac_probe()
302 regulator_disable(ti_dac->vref); in ti_dac_remove()
H A Dti-dac082s085.c40 * @vref: regulator generating Vref
51 struct regulator *vref; member
200 ret = regulator_get_voltage(ti_dac->vref); in ti_dac_read_raw()
288 ti_dac->vref = devm_regulator_get(dev, "vref"); in ti_dac_probe()
289 if (IS_ERR(ti_dac->vref)) in ti_dac_probe()
290 return PTR_ERR(ti_dac->vref); in ti_dac_probe()
292 ret = regulator_enable(ti_dac->vref); in ti_dac_probe()
312 regulator_disable(ti_dac->vref); in ti_dac_probe()
323 regulator_disable(ti_dac->vref); in ti_dac_remove()
/openbmc/linux/drivers/iio/adc/
H A Dmax1241.c25 struct regulator *vref; member
94 vref_uV = regulator_get_voltage(adc->vref); in max1241_read_raw()
118 err = regulator_disable(adc->vref); in max1241_disable_vref_action()
120 dev_err(dev, "could not disable vref regulator.\n"); in max1241_disable_vref_action()
143 adc->vref = devm_regulator_get(dev, "vref"); in max1241_probe()
144 if (IS_ERR(adc->vref)) in max1241_probe()
145 return dev_err_probe(dev, PTR_ERR(adc->vref), in max1241_probe()
146 "failed to get vref regulator\n"); in max1241_probe()
148 ret = regulator_enable(adc->vref); in max1241_probe()
154 dev_err(dev, "could not set up vref regulator cleanup action\n"); in max1241_probe()
H A Dlpc18xx_adc.c42 struct regulator *vref; member
104 *val = regulator_get_voltage(adc->vref) / 1000; in lpc18xx_adc_read_raw()
124 static void lpc18xx_regulator_disable(void *vref) in lpc18xx_regulator_disable() argument
126 regulator_disable(vref); in lpc18xx_regulator_disable()
154 adc->vref = devm_regulator_get(&pdev->dev, "vref"); in lpc18xx_adc_probe()
155 if (IS_ERR(adc->vref)) in lpc18xx_adc_probe()
156 return dev_err_probe(&pdev->dev, PTR_ERR(adc->vref), in lpc18xx_adc_probe()
165 ret = regulator_enable(adc->vref); in lpc18xx_adc_probe()
171 ret = devm_add_action_or_reset(&pdev->dev, lpc18xx_regulator_disable, adc->vref); in lpc18xx_adc_probe()
H A Dmax11205.c34 struct regulator *vref; member
53 reg_mv = regulator_get_voltage(st->vref); in max11205_read_raw()
130 st->vref = devm_regulator_get(&spi->dev, "vref"); in max11205_probe()
131 if (IS_ERR(st->vref)) in max11205_probe()
132 return dev_err_probe(&spi->dev, PTR_ERR(st->vref), in max11205_probe()
133 "Failed to get vref regulator\n"); in max11205_probe()
135 ret = regulator_enable(st->vref); in max11205_probe()
139 ret = devm_add_action_or_reset(&spi->dev, max11205_reg_disable, st->vref); in max11205_probe()
H A Drcar-gyroadc.c68 struct regulator *vref[8]; member
181 unsigned int vref; in rcar_gyroadc_read_raw() local
189 consumer = priv->vref[0]; in rcar_gyroadc_read_raw()
191 consumer = priv->vref[chan->channel]; in rcar_gyroadc_read_raw()
226 vref = regulator_get_voltage(consumer); in rcar_gyroadc_read_raw()
227 *val = vref / 1000; in rcar_gyroadc_read_raw()
322 struct regulator *vref; in rcar_gyroadc_parse_subdevs() local
394 vref = devm_regulator_get(dev, "vref"); in rcar_gyroadc_parse_subdevs()
396 if (IS_ERR(vref)) { in rcar_gyroadc_parse_subdevs()
397 dev_dbg(dev, "Channel %i 'vref' supply not connected.\n", in rcar_gyroadc_parse_subdevs()
[all …]
H A Dfsl-imx25-gcq.c41 struct regulator *vref[4]; member
181 if (priv->vref[refp]) in mx25_gcq_ext_regulator_setup()
184 ret = snprintf(reg_name, sizeof(reg_name), "vref-%s", in mx25_gcq_ext_regulator_setup()
189 priv->vref[refp] = devm_regulator_get_optional(dev, reg_name); in mx25_gcq_ext_regulator_setup()
190 if (IS_ERR(priv->vref[refp])) in mx25_gcq_ext_regulator_setup()
191 return dev_err_probe(dev, PTR_ERR(priv->vref[refp]), in mx25_gcq_ext_regulator_setup()
251 regulator_get_voltage(priv->vref[refp]); in mx25_gcq_setup_cfgs()
332 if (!priv->vref[i]) in mx25_gcq_probe()
335 ret = regulator_enable(priv->vref[i]); in mx25_gcq_probe()
381 if (priv->vref[i]) in mx25_gcq_probe()
[all …]
H A Dnpcm_adc.c34 struct regulator *vref; member
174 if (!IS_ERR(info->vref)) { in npcm_adc_read_raw()
175 vref_uv = regulator_get_voltage(info->vref); in npcm_adc_read_raw()
260 info->vref = devm_regulator_get_optional(&pdev->dev, "vref"); in npcm_adc_probe()
261 if (!IS_ERR(info->vref)) { in npcm_adc_probe()
262 ret = regulator_enable(info->vref); in npcm_adc_probe()
275 if (PTR_ERR(info->vref) != -ENODEV) { in npcm_adc_probe()
276 ret = PTR_ERR(info->vref); in npcm_adc_probe()
315 if (!IS_ERR(info->vref)) in npcm_adc_probe()
316 regulator_disable(info->vref); in npcm_adc_probe()
[all …]
H A Dad799x.c128 struct regulator *vref; member
307 if (st->vref) in ad799x_read_raw()
308 ret = regulator_get_voltage(st->vref); in ad799x_read_raw()
812 st->vref = devm_regulator_get_optional(&client->dev, "vref"); in ad799x_probe()
814 if (IS_ERR(st->vref)) { in ad799x_probe()
815 if (PTR_ERR(st->vref) == -ENODEV) { in ad799x_probe()
816 st->vref = NULL; in ad799x_probe()
819 ret = PTR_ERR(st->vref); in ad799x_probe()
824 if (st->vref) { in ad799x_probe()
832 ret = regulator_enable(st->vref); in ad799x_probe()
[all …]
H A Dad7949.c70 * @vref: regulator generating Vref
82 struct regulator *vref; member
239 ret = regulator_get_voltage(ad7949_adc->vref); in ad7949_spi_read_raw()
368 ad7949_adc->vref = devm_regulator_get_optional(dev, "vrefin"); in ad7949_spi_probe()
369 if (IS_ERR(ad7949_adc->vref)) { in ad7949_spi_probe()
370 ret = PTR_ERR(ad7949_adc->vref); in ad7949_spi_probe()
374 ad7949_adc->vref = devm_regulator_get_optional(dev, "vref"); in ad7949_spi_probe()
375 if (IS_ERR(ad7949_adc->vref)) { in ad7949_spi_probe()
376 ret = PTR_ERR(ad7949_adc->vref); in ad7949_spi_probe()
387 ret = regulator_enable(ad7949_adc->vref); in ad7949_spi_probe()
[all …]
H A Dmcp3911.c73 struct regulator *vref; member
277 if (adc->vref) { in mcp3911_calc_scale_table()
278 ret = regulator_get_voltage(adc->vref); in mcp3911_calc_scale_table()
281 "failed to get vref voltage: %d\n", in mcp3911_calc_scale_table()
291 * Raw = ((Voltage)/(Vref) * 2^23 * Gain * 1.5 in mcp3911_calc_scale_table()
292 * Voltage = Raw * (Vref)/(2^23 * Gain * 1.5) in mcp3911_calc_scale_table()
411 if (adc->vref) { in mcp3911_config()
445 static void mcp3911_cleanup_regulator(void *vref) in mcp3911_cleanup_regulator() argument
447 regulator_disable(vref); in mcp3911_cleanup_regulator()
480 adc->vref = devm_regulator_get_optional(&adc->spi->dev, "vref"); in mcp3911_probe()
[all …]
H A Dad7091r-base.c48 struct regulator *vref; member
170 if (st->vref) { in ad7091r_read_raw()
171 ret = regulator_get_voltage(st->vref); in ad7091r_read_raw()
364 regulator_disable(st->vref); in ad7091r_remove()
404 st->vref = devm_regulator_get_optional(dev, "vref"); in ad7091r_probe()
405 if (IS_ERR(st->vref)) { in ad7091r_probe()
406 if (PTR_ERR(st->vref) == -EPROBE_DEFER) in ad7091r_probe()
409 st->vref = NULL; in ad7091r_probe()
410 /* Enable internal vref */ in ad7091r_probe()
417 ret = regulator_enable(st->vref); in ad7091r_probe()
/openbmc/linux/Documentation/devicetree/bindings/iio/adc/
H A Dadi,ad7476.yaml56 datasheets. If there is no separate vref-supply, then this is needed
63 vref-supply:
102 # Devices with a vref
115 vref-supply: true
118 vref-supply: false
119 # Devices with a vref where it is not optional
131 - vref-supply
172 vref-supply = <&adc_vref>;
H A Dti,adc12138.yaml34 vref-p-supply:
37 vref-n-supply:
40 (Note that this must not go below GND or exceed vref-p)
61 - vref-p-supply
81 vref-p-supply = <&ldo4_reg>;
/openbmc/linux/drivers/input/touchscreen/
H A Dads7846.c178 #define ADS_PD10_REF_ON (2 << 0) /* vREF on + penirq */
179 #define ADS_PD10_ALL_ON (3 << 0) /* ADC + vREF on */
184 #define READ_12BIT_DFR(x, adc, vref) (ADS_START | ADS_A2A1A0_d_ ## x \ argument
186 (adc ? ADS_PD10_ADC_ON : 0) | (vref ? ADS_PD10_REF_ON : 0))
188 #define READ_Y(vref) (READ_12BIT_DFR(y, 1, vref)) argument
189 #define READ_Z1(vref) (READ_12BIT_DFR(z1, 1, vref)) argument
190 #define READ_Z2(vref) (READ_12BIT_DFR(z2, 1, vref)) argument
191 #define READ_X(vref) (READ_12BIT_DFR(x, 1, vref)) argument
195 * we leave both ADC and VREF powered
203 /* Order commands in the most optimal way to reduce Vref switching and
[all …]
/openbmc/linux/Documentation/devicetree/bindings/input/touchscreen/
H A Dads7846.txt28 ti,vref-delay-usecs vref supply delay in usecs, 0 for
29 external vref (u16).
30 ti,vref-mv The VREF voltage, in millivolts (u16).
33 ti,keep-vref-on set to keep vref on for differential

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