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/linux/drivers/clk/sprd/
H A Dmux.h1 /* SPDX-License-Identifier: GPL-2.0 */
3 // Spreadtrum multiplexer clock driver
5 // Copyright (C) 2017 Spreadtrum, Inc.
6 // Author: Chunyan Zhang <chunyan.zhang@spreadtrum.com>
14 * struct sprd_mux_ssel - Mux clock's source select bits in its register
17 * @table: For some mux clocks, not all sources are used on some special
/linux/Documentation/devicetree/bindings/pinctrl/
H A Dsprd,sc9860-pinctrl.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/pinctrl/sprd,sc9860-pinctrl.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Spreadtrum SC9860 Pin Controller
10 - Baolin Wang <baolin.wang@linux.alibaba.com>
13 The Spreadtrum pin controller are organized in 3 blocks (types).
26 of them, so we can not make every Spreadtrum-special configuration
45 - input-enable
46 - input-disable
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/linux/Documentation/devicetree/bindings/mmc/
H A Dsprd,sdhci-r11.yaml1 # SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/mmc/sprd,sdhci-r11.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Spreadtrum SDHCI controller
10 - Orson Zhai <orsonzhai@gmail.com>
11 - Baolin Wang <baolin.wang7@gmail.com>
12 - Chunyan Zhang <zhang.lyra@gmail.com>
16 const: sprd,sdhci-r11
27 - description: SDIO source clock
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/linux/Documentation/devicetree/bindings/gpio/
H A Dsprd,gpio-eic.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
4 ---
5 $id: http://devicetree.org/schemas/gpio/sprd,gpio-eic.yaml#
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 - Orson Zhai <orsonzhai@gmail.com>
12 - Baolin Wang <baolin.wang7@gmail.com>
13 - Chunyan Zhang <zhang.lyra@gmail.com>
17 be used only in input mode. The Spreadtrum platform has 2 EIC controllers,
19 controller contains 4 sub-modules, i.e. EIC-debounce, EIC-latch, EIC-async and
20 EIC-sync. But the PMIC EIC controller contains only one EIC-debounce sub-
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/linux/drivers/gpio/
H A Dgpio-eic-sprd.c1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (C) 2018 Spreadtrum Communications Inc.
54 * The digital-chip EIC controller can support maximum 3 banks, and each bank
60 #define SPRD_EIC_BIT(x) ((x) & (SPRD_EIC_PER_BANK_NR - 1))
64 * The Spreadtrum EIC (external interrupt controller) can be used only in
67 * The Spreadtrum digital-chip EIC controller contains 4 sub-modules:
71 * (millisecond resolution) and a single-trigger mechanism is introduced
72 * into this sub-module to enhance the input event detection reliability.
75 * The latch EIC is used to latch some special power down signals and
82 * The EIC-sync is similar with GPIO's input function, which is a synchronized
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H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
60 non-sleeping contexts. They can make bitbanged serial protocols
81 numberspace-based functionalities of the sysfs interface.
119 This adds a special place holder for software nodes to contain an
137 Enables support for the idio-16 library functions. The idio-16 library
139 ACCES IDIO-16 family such as the 104-IDIO-16 and the PCI-IDIO-16.
141 If built as a module its name will be gpio-idio-16.
147 tristate "GPIO driver for 74xx-ICs with MMIO access"
151 Say yes here to support GPIO functionality for 74xx-compatible ICs
166 If driver is built as a module it will be called gpio-altera.
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/linux/drivers/spi/
H A Dspi-sprd-adi.c2 * Copyright (C) 2017 Spreadtrum Communications Inc.
4 * SPDX-License-Identifier: GPL-2.0
36 #define REG_ADI_CHN_ADDR(id) (0x44 + (id - 2) * 4)
157 if (reg >= sadi->data->slave_addr_size) { in sprd_adi_check_addr()
158 dev_err(sadi->dev, in sprd_adi_check_addr()
161 return -EINVAL; in sprd_adi_check_addr()
173 sts = readl_relaxed(sadi->base + REG_ADI_ARM_FIFO_STS); in sprd_adi_drain_fifo()
178 } while (--timeout); in sprd_adi_drain_fifo()
181 dev_err(sadi->dev, "drain write fifo timeout\n"); in sprd_adi_drain_fifo()
182 return -EBUSY; in sprd_adi_drain_fifo()
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/linux/drivers/watchdog/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
11 character special file /dev/watchdog with major number 10 and minor
16 on-line as fast as possible after a lock-up. There's both a watchdog
21 <file:Documentation/watchdog/watchdog-api.rst> in the kernel source.
51 bool "Update boot-enabled watchdog until userspace takes over"
77 bool "Enable watchdog hrtimer-based pretimeouts"
198 tristate "ChromeOS EC-based watchdog"
252 tristate "Watchdog device controlled through GPIO-line"
257 controlled through GPIO-line.
280 will be called lenovo-se10-wdt.
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