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/linux/drivers/gpu/drm/bridge/
H A Dlontium-lt8912b.c1 // SPDX-License-Identifier: GPL-2.0
9 #include <linux/i2c.h>
10 #include <linux/media-bus-format.h>
52 static int lt8912_write_init_config(struct lt8912 *lt) in lt8912_write_init_config() argument
89 return regmap_multi_reg_write(lt->regmap[I2C_MAIN], seq, ARRAY_SIZE(seq)); in lt8912_write_init_config()
92 static int lt8912_write_mipi_basic_config(struct lt8912 *lt) in lt8912_write_mipi_basic_config() argument
102 return regmap_multi_reg_write(lt->regmap[I2C_CEC_DSI], seq, ARRAY_SIZE(seq)); in lt8912_write_mipi_basic_config()
105 static int lt8912_write_dds_config(struct lt8912 *lt) in lt8912_write_dds_config() argument
155 return regmap_multi_reg_write(lt->regmap[I2C_CEC_DSI], seq, ARRAY_SIZE(seq)); in lt8912_write_dds_config()
158 static int lt8912_write_rxlogicres_config(struct lt8912 *lt) in lt8912_write_rxlogicres_config() argument
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H A Dlontium-lt9611.c1 // SPDX-License-Identifier: GPL-2.0
4 * Copyright (c) 2019-2020. Linaro Limited.
8 #include <linux/i2c.h>
10 #include <linux/media-bus-format.h>
17 #include <sound/hdmi-codec.h>
98 { 0x810b, 0xbf }, /* enable port A lprx */ in lt9611_mipi_input_analog()
101 { 0x8116, 0xbf }, /* enable port B lprx */ in lt9611_mipi_input_analog()
103 { 0x811c, 0x03 }, /* PortA clk lane no-LP mode */ in lt9611_mipi_input_analog()
104 { 0x8120, 0x03 }, /* PortB clk lane with-LP mode */ in lt9611_mipi_input_analog()
107 return regmap_multi_reg_write(lt9611->regmap, reg_cfg, ARRAY_SIZE(reg_cfg)); in lt9611_mipi_input_analog()
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/linux/drivers/media/tuners/
H A Dr820t.c1 // SPDX-License-Identifier: GPL-2.0
7 // that it is part of rtl-sdr git tree, released under GPLv2:
8 // https://groups.google.com/forum/#!topic/ultra-cheap-sdr/Y3rBEOFtHug
9 // https://github.com/n1gp/gr-baz
30 #include "tuner-i2c.h"
46 MODULE_PARM_DESC(debug, "enable verbose debug messages");
350 * I2C read/write code and shadow registers logic
355 int r = reg - REG_SHADOW_START; in shadow_store()
363 if (len > NUM_REGS - r) in shadow_store()
364 len = NUM_REGS - r; in shadow_store()
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/linux/drivers/rapidio/switches/
H A Didt_gen2.c1 // SPDX-License-Identifier: GPL-2.0-or-later
219 * This routine performs device-specific initialization only. in idtg2_em_init()
223 pr_debug("RIO: %s [%d:%d]\n", __func__, rdev->destid, rdev->hopcount); in idtg2_em_init()
225 /* Set Port-Write info CSR: PRIO=3 and CRF=1 */ in idtg2_em_init()
229 * Configure LT LAYER error reporting. in idtg2_em_init()
232 /* Enable standard (RIO.p8) error reporting */ in idtg2_em_init()
237 /* Use Port-Writes for LT layer error reporting. in idtg2_em_init()
238 * Enable per-port reset in idtg2_em_init()
255 /* Use Port-Writes for port error reporting and enable error logging */ in idtg2_em_init()
256 tmp = RIO_GET_TOTAL_PORTS(rdev->swpinfo); in idtg2_em_init()
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/linux/Documentation/devicetree/bindings/regulator/
H A Dnxp,pca9450-regulator.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/regulator/nxp,pca9450-regulator.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Robin Gong <yibin.gong@nxp.com>
18 https://www.nxp.com/docs/en/data-sheet/PCA9450DS.pdf
28 - nxp,pca9450a
29 - nxp,pca9450b
30 - nxp,pca9450c
31 - nxp,pca9451a
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/linux/drivers/video/fbdev/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
14 a well-defined interface, so the software doesn't need to know
15 anything about the low-level (hardware register) stuff.
21 On several non-X86 architectures, the frame buffer device is the
29 and the Framebuffer-HOWTO at
30 <http://www.munted.org.uk/programming/Framebuffer-HOWTO-1.3.html> for more
40 are compiling a kernel for a non-x86 architecture.
46 device-aware may cause unexpected results. If unsure, say N.
57 Common utility functions useful to fbdev drivers of VGA-based
82 If you have a PCI-based system, this enables support for these
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/linux/Documentation/devicetree/bindings/pinctrl/
H A Dmediatek,mt8188-pinctrl.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/pinctrl/mediatek,mt8188-pinctrl.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Hui Liu <hui.liu@mediatek.com>
17 const: mediatek,mt8188-pinctrl
19 gpio-controller: true
21 '#gpio-cells':
25 are defined in <dt-bindings/gpio/gpio.h>.
28 gpio-ranges:
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/linux/drivers/power/supply/
H A Dbq25890_charger.c1 // SPDX-License-Identifier: GPL-2.0-or-later
9 #include <linux/i2c.h>
90 u8 ilim_en; /* enable ILIM pin */
113 char name[28]; /* "bq25890-charger-%d" */
272 * Most of the val -> idx conversions can be computed, given the minimum,
322 0, -10, -20, -30, -40, -60, -70, -80,
323 -90, -10, -120, -140, -150, -170, -190, -210,
341 struct bq25890_lookup lt; member
356 [TBL_TREG] = { .lt = {bq25890_treg_tbl, BQ25890_TREG_TBL_SIZE} },
357 [TBL_BOOSTI] = { .lt = {bq25890_boosti_tbl, BQ25890_BOOSTI_TBL_SIZE} },
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/linux/drivers/gpu/drm/nouveau/nvkm/engine/disp/
H A Duoutp.c28 #include <subdev/i2c.h>
35 struct nvkm_ior *ior = outp->ior; in nvkm_uoutp_mthd_dp_mst_vcpi()
38 if (argc != sizeof(args->v0) || args->v0.version != 0) in nvkm_uoutp_mthd_dp_mst_vcpi()
39 return -ENOSYS; in nvkm_uoutp_mthd_dp_mst_vcpi()
40 if (!ior->func->dp || !ior->func->dp->vcpi || !nvkm_head_find(outp->disp, args->v0.head)) in nvkm_uoutp_mthd_dp_mst_vcpi()
41 return -EINVAL; in nvkm_uoutp_mthd_dp_mst_vcpi()
43 ior->func->dp->vcpi(ior, args->v0.head, args->v0.start_slot, args->v0.num_slots, in nvkm_uoutp_mthd_dp_mst_vcpi()
44 args->v0.pbn, args->v0.aligned_pbn); in nvkm_uoutp_mthd_dp_mst_vcpi()
53 if (argc != sizeof(args->v0) || args->v0.version != 0) in nvkm_uoutp_mthd_dp_mst_id_put()
54 return -ENOSYS; in nvkm_uoutp_mthd_dp_mst_id_put()
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/linux/drivers/regulator/
H A Dpca9450-regulator.c1 // SPDX-License-Identifier: GPL-2.0
9 #include <linux/i2c.h>
55 .max_register = PCA9450_MAX_REGISTER - 1,
72 .enable = regulator_enable_regmap,
83 .enable = regulator_enable_regmap,
93 .enable = regulator_enable_regmap,
168 if (ret == -EINVAL) in buck_set_dvs()
173 for (i = 0; i < desc->n_voltages; i++) { in buck_set_dvs()
178 i <<= ffs(desc->vsel_mask) - 1; in buck_set_dvs()
188 /* Enable DVS control through PMIC_STBY_REQ for this BUCK */ in buck_set_dvs()
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/linux/drivers/i2c/busses/
H A Di2c-npcm7xx.c1 // SPDX-License-Identifier: GPL-2.0
3 * Nuvoton NPCM7xx I2C Controller driver
11 #include <linux/i2c.h>
29 * External I2C Interface driver xfer indication values, which indicate status
58 /* I2C Bank (module had 2 banks of registers) */
64 /* Internal I2C states values (for the I2C module state machine). */
92 /* init register and default value required to enable module */
125 #define NPCM_I2CTXF_CTL 0x12 /* Tx-FIFO Control */
128 #define NPCM_I2CTXF_STS 0x1A /* Tx-FIFO Status */
129 #define NPCM_I2CRXF_STS 0x1C /* Rx-FIFO Status */
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H A Di2c-imx.c1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (C) 2002 Motorola GSG-China
9 * Implementation of I2C Adapter/Algorithm Driver
10 * for I2C Bus integrated in Freescale i.MX/MXC processors
12 * Derived from Motorola GSG China I2C example driver
17 * Copyright (C) 2008 Darius Augulis <darius.augulis at teltonika.lt>
28 #include <linux/dma-mapping.h>
34 #include <linux/i2c.h>
46 #include <linux/platform_data/i2c-imx.h>
53 #define DRIVER_NAME "imx-i2c"
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/linux/arch/arm64/boot/dts/freescale/
H A Dimx93-kontron-osm-s.dtsi1 // SPDX-License-Identifier: GPL-2.0+ OR MIT
6 #include <dt-bindings/interrupt-controller/irq.h>
10 model = "Kontron OSM-S i.MX93";
11 compatible = "kontron,imx93-osm-s", "fsl,imx93";
24 stdout-path = &lpuart1;
27 reg_usdhc2_vcc: regulator-usdhc2-vcc {
28 compatible = "regulator-fixed";
29 pinctrl-names = "default";
30 pinctrl-0 = <&pinctrl_reg_usdhc2_vcc>;
32 enable-active-high;
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/linux/Documentation/sound/
H A Dalsa-configuration.rst2 Advanced Linux Sound Architecture - Driver Configuration guide
9 To enable ALSA support you need at least to build the kernel with
13 Enable "OSS API emulation" (``CONFIG_SND_OSSEMUL``) and both OSS mixer
17 SB Live! then you need to enable "Sequencer support"
20 To make ALSA debug messages more verbose, enable the "Verbose printk"
38 ----------
47 limiting card index for auto-loading (1-8);
49 For auto-loading more than one card, specify this option
50 together with snd-card-X aliases.
63 Module snd-pcm-oss
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/linux/drivers/gpu/drm/i915/display/
H A Dintel_display_types.h3 * Copyright (c) 2007-2008 Intel Corporation
29 #include <linux/i2c.h>
48 #include <media/cec-notifier.h>
71 /* these are outputs from the chip - integrated only
89 HDMI_AUDIO_OFF_DVI = -2, /* no aux data for HDMI-DVI converter */
105 * create the DMA scatter-gather list for each FB color plane. This sg
117 * in the rotated and remapped GTT view all no-CCS formats (up to 2
190 void (*enable)(struct intel_atomic_state *, member
221 * state. This must be called _after_ display->get_pipe_config has
222 * pre-filled the pipe config. Note that intel_encoder->base.crtc must
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/linux/drivers/gpu/drm/amd/display/dmub/inc/
H A Ddmub_cmd.h143 * Physical framebuffer address location, 64-bit.
213 * @vb_scaling_enabled: Indicates variBright Scaling Enable
250 * @knee_threshold: Current x-position of ACE knee (u0.16).
270 * union dmub_addr - DMUB physical/virtual 64-bit address.
315 * Enable visual confirm in FW.
340 * Enable visual confirm for IPS
358 * Enable visual confirm in FW.
418 * @enable_ips_visual_confirm: Enable IPS visual confirm when entering IPS
425 * @enable_ips_residency_profiling: Enable IPS residency profiling
444 * @dsc_enable_status: DSC enable status in driver
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/linux/drivers/media/dvb-frontends/
H A Ddib0090.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Linux-DVB Driver for DiBcom's DiB0090 base-band RF Tuner.
5 * Copyright (C) 2005-9 DiBcom (http://www.dibcom.fr/)
15 #include <linux/i2c.h>
90 #define MP008 0x6 /* Dual diversity VHF-UHF-LBAND */
91 #define MP009 0x7 /* Dual diversity 29098 CBAND-UHF-LBAND-SBAND */
124 struct i2c_adapter *i2c; member
135 s16 rf_gain_limit; /* take-over-point: where to split between bb and rf gain */
149 /* for the captrim/dc-offset search */
180 /* for the I2C transfer */
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/linux/drivers/media/pci/bt8xx/
H A Dbttv-cards.c1 // SPDX-License-Identifier: GPL-2.0-or-later
4 bttv-cards.c
6 this file has configuration information - card-specific stuff
9 Copyright (C) 1996,97,98 Ralph Metzler (rjkm@thp.uni-koeln.de)
10 & Marcus Metzler (mocm@thp.uni-koeln.de)
11 (c) 1999-2001 Gerd Knorr <kraxel@goldbach.in-berlin.de>
31 #include <media/v4l2-common.h>
32 #include <media/i2c/tvaudio.h>
33 #include "bttv-audio-hook.h"
85 static unsigned int card[BTTV_MAX] = { [ 0 ... (BTTV_MAX-1) ] = UNSET };
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/linux/sound/pci/ice1712/
H A Daureon.c1 // SPDX-License-Identifier: GPL-2.0-or-later
11 * - we reuse the struct snd_akm4xxx record for storing the wm8770 codec data.
16 * - DAC digital volumes are not implemented in the mixer.
58 #define WM_DAC_ATTEN 0x00 /* DAC1-8 analog attenuation */
60 #define WM_DAC_DIG_ATTEN 0x09 /* DAC1-8 digital attenuation */
65 #define WM_DAC_CTRL2 0x15 /* de-emphasis and zefo-flag */
68 #define WM_POWERDOWN 0x18 /* power-down controls */
84 #define PCA9554_DEV 0x40 /* I2C device address */
119 * send i2c stop condition and start condition in aureon_pca9554_write()
150 for (i = 7; i >= 0; i--) { in aureon_pca9554_write()
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