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/linux/drivers/leds/
H A Dleds-pca963x.c1 // SPDX-License-Identifier: GPL-2.0-only
6 * Author: Peter Meerwald <p.meerwald@bct-electronic.com>
9 * Based on leds-pca955x.c
11 * LED driver for the PCA9633 I2C LED driver (7-bit slave address 0x62)
12 * LED driver for the PCA9634/5 I2C LED driver (7-bit slave address set by hw.)
22 * or by adding the 'nxp,hw-blink' property to the DTS.
43 #define PCA963X_MODE2_OUTDRV 0x04 /* Open-drain or totem pole */
121 struct i2c_client *client = led->chip->client; in pca963x_brightness()
122 struct pca963x_chipdef *chipdef = led->chip->chipdef; in pca963x_brightness()
127 ledout_addr = chipdef->ledout_base + (led->led_num / 4); in pca963x_brightness()
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/linux/Documentation/devicetree/bindings/pwm/
H A Dnxp,pca9685-pwm.txt1 NXP PCA9685 16-channel 12-bit PWM LED controller
5 - compatible: "nxp,pca9685-pwm"
6 - #pwm-cells: Should be 2. See pwm.yaml in this directory for a description of
12 - invert (bool): boolean to enable inverted logic
13 - open-drain (bool): boolean to configure outputs with open-drain structure;
14 if omitted use totem-pole structure
22 compatible = "nxp,pca9685-pwm";
23 #pwm-cells = <2>;
26 open-drain;
/linux/drivers/input/keyboard/
H A Dimx_keypad.c1 // SPDX-License-Identifier: GPL-2.0
71 * -stable: achieved after a complete debounce process.
72 * -unstable: used in the debouncing process.
86 if ((keypad->cols_en_mask & (1 << col)) == 0) in imx_keypad_scan_matrix()
91 * 3. configure columns as totem-pole to discharge capacitance. in imx_keypad_scan_matrix()
92 * 4. configure columns as open-drain. in imx_keypad_scan_matrix()
94 reg_val = readw(keypad->mmio_base + KPDR); in imx_keypad_scan_matrix()
96 writew(reg_val, keypad->mmio_base + KPDR); in imx_keypad_scan_matrix()
98 reg_val = readw(keypad->mmio_base + KPCR); in imx_keypad_scan_matrix()
99 reg_val &= ~((keypad->cols_en_mask & 0xff) << 8); in imx_keypad_scan_matrix()
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/linux/drivers/pcmcia/
H A Dtcic.c3 Device driver for Databook TCIC-2 PCMCIA controller
55 MODULE_DESCRIPTION("Databook TCIC-2 PCMCIA socket driver");
62 /* The base port address of the TCIC-2 chip */
66 static int ignore = -1;
76 /* The card status change interrupt -- 0 means autoselect */
79 /* Poll status interval -- 0 means default to interrupt */
82 /* Delay for card status double-checking */
195 return 2*(ns-14)/cycle_time; in to_cycles()
214 return -1; in try_irq()
218 return -1; in try_irq()
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/linux/drivers/scsi/sym53c8xx_2/
H A Dsym_defs.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
4 * of PCI-SCSI IO processors.
6 * Copyright (C) 1999-2001 Gerard Roudier <groudier@free.fr>
9 * Copyright (C) 1998-2000 Gerard Roudier
12 * a port of the FreeBSD ncr driver to Linux-1.2.13.
16 * Stefan Esser <se@mi.Uni-Koeln.de>
24 *-----------------------------------------------------------------------------
31 #define SYM_DRIVER_NAME "sym-" SYM_VERSION
40 u_char burst_max; /* log-base-2 of max burst */
48 #define FE_ULTRA2 (1<<3) /* Ultra 2 - 40 Mtrans/sec */
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H A Dsym_glue.c1 // SPDX-License-Identifier: GPL-2.0-or-later
4 * of PCI-SCSI IO processors.
6 * Copyright (C) 1999-2001 Gerard Roudier <groudier@free.fr>
7 * Copyright (c) 2003-2005 Matthew Wilcox <matthew@wil.cx>
10 * Copyright (C) 1998-2000 Gerard Roudier
13 * a port of the FreeBSD ncr driver to Linux-1.2.13.
17 * Stefan Esser <se@mi.Uni-Koeln.de>
25 *-----------------------------------------------------------------------------
66 MODULE_PARM_DESC(irqm, "0 for open drain, 1 to leave alone, 2 for totem pole");
122 #define SYM_SOFTC_PTR(cmd) sym_get_hcb(cmd->device->host)
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H A Dsym_hipd.c1 // SPDX-License-Identifier: GPL-2.0-or-later
4 * of PCI-SCSI IO processors.
6 * Copyright (C) 1999-2001 Gerard Roudier <groudier@free.fr>
7 * Copyright (c) 2003-2005 Matthew Wilcox <matthew@wil.cx>
10 * Copyright (C) 1998-2000 Gerard Roudier
13 * a port of the FreeBSD ncr driver to Linux-1.2.13.
17 * Stefan Esser <se@mi.Uni-Koeln.de>
25 *-----------------------------------------------------------------------------
55 while (n-- > 0) in sym_printl_hex()
62 sym_print_addr(cp->cmd, "%s: ", label); in sym_print_msg()
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/linux/drivers/scsi/
H A Dncr53c8xx.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 ** Device driver for the PCI-SCSI NCR538XX controller family.
6 ** Copyright (C) 1998-2001 Gerard Roudier <groudier@free.fr>
9 **-----------------------------------------------------------------------------
23 ** Stefan Esser <se@mi.Uni-Koeln.de>
62 /* ---------------------------------------------------------------------
65 ** ---------------------------------------------------------------------
143 * Disallow disconnections at boot-up
179 * Settle time after reset at boot-up
184 ** Bridge quirks work-around option defaulted to 1.
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/linux/Documentation/scsi/
H A Dsym53c8xx_2.rst1 .. SPDX-License-Identifier: GPL-2.0
4 SYM-2 driver
11 95170 DEUIL LA BARRE - FRANCE
15 2004-10-09
67 This driver supports the whole SYM53C8XX family of PCI-SCSI controllers.
68 It also support the subset of LSI53C10XX PCI-SCSI controllers that are based
72 with the FreeBSD SYM-2 driver. The 'glue' that allows this driver to work
81 - Wolfgang Stanglmeier <wolf@cologne.de>
82 - Stefan Esser <se@mi.Uni-Koeln.de>
84 1996: port of the ncr driver to Linux-1.2.13 and rename it ncr53c8xx.
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H A Dncr53c8xx.rst1 .. SPDX-License-Identifier: GPL-2.0
11 95170 DEUIL LA BARRE - FRANCE
64 10.4 PCI configuration fix-up boot option
81 16.1 Synchronous timings for 53C875 and 53C860 Ultra-SCSI controllers
82 16.2 Synchronous timings for fast SCSI-2 53C8XX controllers
97 - Gerard Roudier <groudier@free.fr>
101 - Wolfgang Stanglmeier <wolf@cologne.de>
102 - Stefan Esser <se@mi.Uni-Koeln.de>
106 - ncr53c8xx generic driver that supports all the SYM53C8XX family including
109 - sym53c8xx enhanced driver (a.k.a. 896 drivers) that drops support of oldest
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