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[93.181.165.181]) by smtp.gmail.com with ESMTPSA id y206-v6sm1197634wmg.45.2018.08.20.16.42.54 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 20 Aug 2018 16:42:55 -0700 (PDT) From: Janusz Krzysztofik To: Linus Walleij Cc: Jonathan Corbet , Miguel Ojeda Sandonis , Peter Korsgaard , Peter Rosin , Ulf Hansson , Andrew Lunn , Florian Fainelli , "David S. Miller" , Dominik Brodowski , Kishon Vijay Abraham I , Lars-Peter Clausen , Michael Hennerich , Jonathan Cameron , Hartmut Knaack , Peter Meerwald-Stadler , Greg Kroah-Hartman , Jiri Slaby , linux-gpio@vger.kernel.org, linux-doc@vger.kernel.org, linux-i2c@vger.kernel.org, linux-mmc@vger.kernel.org, netdev@vger.kernel.org, linux-iio@vger.kernel.org, devel@driverdev.osuosl.org, linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org, Janusz Krzysztofik Subject: [RFC RFT PATCH v4 3/4] gpiolib: Pass array info to get/set array functions Date: Tue, 21 Aug 2018 01:43:40 +0200 Message-Id: <20180820234341.5271-4-jmkrzyszt@gmail.com> X-Mailer: git-send-email 2.16.4 In-Reply-To: <20180820234341.5271-1-jmkrzyszt@gmail.com> References: <20180813223448.21316-1-jmkrzyszt@gmail.com> <20180820234341.5271-1-jmkrzyszt@gmail.com> Sender: linux-gpio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org In order to make use of array info obtained from gpiod_get_array() and speed up processing of arrays matching single GPIO chip layout, that information must be passed to get/set array functions. Extend the functions' API with that additional parameter and update all users. Pass NULL if a user bulids an array itself from single GPIOs. Signed-off-by: Janusz Krzysztofik --- Documentation/driver-api/gpio/consumer.rst | 14 ++++++++++-- drivers/auxdisplay/hd44780.c | 12 ++++++---- drivers/bus/ts-nbus.c | 6 +++-- drivers/gpio/gpio-max3191x.c | 6 +++-- drivers/gpio/gpiolib.c | 34 ++++++++++++++++++++--------- drivers/gpio/gpiolib.h | 2 ++ drivers/i2c/muxes/i2c-mux-gpio.c | 2 +- drivers/mmc/core/pwrseq_simple.c | 2 +- drivers/mux/gpio.c | 3 ++- drivers/net/phy/mdio-mux-gpio.c | 2 +- drivers/pcmcia/soc_common.c | 3 ++- drivers/phy/motorola/phy-mapphone-mdm6600.c | 4 +++- drivers/staging/iio/adc/ad7606.c | 3 ++- drivers/tty/serial/serial_mctrl_gpio.c | 2 +- include/linux/gpio/consumer.h | 8 +++++++ 15 files changed, 75 insertions(+), 28 deletions(-) diff --git a/Documentation/driver-api/gpio/consumer.rst b/Documentation/driver-api/gpio/consumer.rst index 7e0298b9a7b9..0afd95a12b10 100644 --- a/Documentation/driver-api/gpio/consumer.rst +++ b/Documentation/driver-api/gpio/consumer.rst @@ -325,28 +325,36 @@ The following functions get or set the values of an array of GPIOs:: int gpiod_get_array_value(unsigned int array_size, struct gpio_desc **desc_array, + struct gpio_array *array_info, unsigned long *value_bitmap); int gpiod_get_raw_array_value(unsigned int array_size, struct gpio_desc **desc_array, + struct gpio_array *array_info, unsigned long *value_bitmap); int gpiod_get_array_value_cansleep(unsigned int array_size, struct gpio_desc **desc_array, + struct gpio_array *array_info, unsigned long *value_bitmap); int gpiod_get_raw_array_value_cansleep(unsigned int array_size, struct gpio_desc **desc_array, + struct gpio_array *array_info, unsigned long *value_bitmap); void gpiod_set_array_value(unsigned int array_size, struct gpio_desc **desc_array, + struct gpio_array *array_info, unsigned long *value_bitmap) void gpiod_set_raw_array_value(unsigned int array_size, struct gpio_desc **desc_array, + struct gpio_array *array_info, unsigned long *value_bitmap) void gpiod_set_array_value_cansleep(unsigned int array_size, struct gpio_desc **desc_array, + struct gpio_array *array_info, unsigned long *value_bitmap) void gpiod_set_raw_array_value_cansleep(unsigned int array_size, struct gpio_desc **desc_array, + struct gpio_array *array_info, unsigned long *value_bitmap) The array can be an arbitrary set of GPIOs. The functions will try to access @@ -358,6 +366,7 @@ accessed sequentially. The functions take three arguments: * array_size - the number of array elements * desc_array - an array of GPIO descriptors + * array_info - optional information obtained from gpiod_array_get() * value_bitmap - a bitmap to store the GPIOs' values (get) or a bitmap of values to assign to the GPIOs (set) @@ -368,12 +377,13 @@ the struct gpio_descs returned by gpiod_get_array():: struct gpio_descs *my_gpio_descs = gpiod_get_array(...); gpiod_set_array_value(my_gpio_descs->ndescs, my_gpio_descs->desc, - my_gpio_value_bitmap); + my_gpio_descs->info, my_gpio_value_bitmap); It is also possible to access a completely arbitrary array of descriptors. The descriptors may be obtained using any combination of gpiod_get() and gpiod_get_array(). Afterwards the array of descriptors has to be setup -manually before it can be passed to one of the above functions. +manually before it can be passed to one of the above functions. In that case, +array_info should be set to NULL. Note that for optimal performance GPIOs belonging to the same chip should be contiguous within the array of descriptors. diff --git a/drivers/auxdisplay/hd44780.c b/drivers/auxdisplay/hd44780.c index d340473aa142..6ae81632bc44 100644 --- a/drivers/auxdisplay/hd44780.c +++ b/drivers/auxdisplay/hd44780.c @@ -74,7 +74,8 @@ static void hd44780_write_gpio8(struct hd44780 *hd, u8 val, unsigned int rs) } /* Present the data to the port */ - gpiod_set_array_value_cansleep(n, &hd->pins[PIN_DATA0], value_bitmap); + gpiod_set_array_value_cansleep(n, &hd->pins[PIN_DATA0], NULL, + value_bitmap); hd44780_strobe_gpio(hd); } @@ -97,7 +98,8 @@ static void hd44780_write_gpio4(struct hd44780 *hd, u8 val, unsigned int rs) value_bitmap[0] = value_bitmap[0] >> PIN_DATA4; /* Present the data to the port */ - gpiod_set_array_value_cansleep(n, &hd->pins[PIN_DATA4], value_bitmap); + gpiod_set_array_value_cansleep(n, &hd->pins[PIN_DATA4], NULL, + value_bitmap); hd44780_strobe_gpio(hd); @@ -106,7 +108,8 @@ static void hd44780_write_gpio4(struct hd44780 *hd, u8 val, unsigned int rs) value_bitmap[0] |= val & ~((1 << PIN_DATA4) - 1); /* Present the data to the port */ - gpiod_set_array_value_cansleep(n, &hd->pins[PIN_DATA4], value_bitmap); + gpiod_set_array_value_cansleep(n, &hd->pins[PIN_DATA4], NULL, + value_bitmap); hd44780_strobe_gpio(hd); } @@ -169,7 +172,8 @@ static void hd44780_write_cmd_raw_gpio4(struct charlcd *lcd, int cmd) value_bitmap[0] = value_bitmap[0] >> PIN_DATA4; /* Present the data to the port */ - gpiod_set_array_value_cansleep(n, &hd->pins[PIN_DATA4], value_bitmap); + gpiod_set_array_value_cansleep(n, &hd->pins[PIN_DATA4], NULL, + value_bitmap); hd44780_strobe_gpio(hd); } diff --git a/drivers/bus/ts-nbus.c b/drivers/bus/ts-nbus.c index ce6c1e89236d..000d756eb42c 100644 --- a/drivers/bus/ts-nbus.c +++ b/drivers/bus/ts-nbus.c @@ -112,7 +112,8 @@ static void ts_nbus_reset_bus(struct ts_nbus *ts_nbus) { unsigned long value_bitmap[1] = { 0, }; - gpiod_set_array_value_cansleep(8, ts_nbus->data->desc, value_bitmap); + gpiod_set_array_value_cansleep(8, ts_nbus->data->desc, + ts_nbus->data->info, value_bitmap); gpiod_set_value_cansleep(ts_nbus->csn, 0); gpiod_set_value_cansleep(ts_nbus->strobe, 0); gpiod_set_value_cansleep(ts_nbus->ale, 0); @@ -155,7 +156,8 @@ static void ts_nbus_write_byte(struct ts_nbus *ts_nbus, u8 byte) struct gpio_descs *gpios = ts_nbus->data; unsigned long value_bitmap[1] = { byte, }; - gpiod_set_array_value_cansleep(8, gpios->desc, value_bitmap); + gpiod_set_array_value_cansleep(8, gpios->desc, gpios->info, + value_bitmap); } /* diff --git a/drivers/gpio/gpio-max3191x.c b/drivers/gpio/gpio-max3191x.c index c4ec1c82af27..4b43b5dabfd2 100644 --- a/drivers/gpio/gpio-max3191x.c +++ b/drivers/gpio/gpio-max3191x.c @@ -313,6 +313,7 @@ static int max3191x_set_config(struct gpio_chip *gpio, unsigned int offset, static void gpiod_set_array_single_value_cansleep(unsigned int ndescs, struct gpio_desc **desc, + struct gpio_array *info, int value) { unsigned long *value_bitmap; @@ -327,7 +328,7 @@ static void gpiod_set_array_single_value_cansleep(unsigned int ndescs, else bitmap_zero(value_bitmap, ndescs); - gpiod_set_array_value_cansleep(ndescs, desc, value_bitmap); + gpiod_set_array_value_cansleep(ndescs, desc, info, value_bitmap); kfree(value_bitmap); } @@ -400,7 +401,8 @@ static int max3191x_probe(struct spi_device *spi) if (max3191x->modesel_pins) gpiod_set_array_single_value_cansleep( max3191x->modesel_pins->ndescs, - max3191x->modesel_pins->desc, max3191x->mode); + max3191x->modesel_pins->desc, + max3191x->modesel_pins->info, max3191x->mode); max3191x->ignore_uv = device_property_read_bool(dev, "maxim,ignore-undervoltage"); diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index c1ed1c759345..4d26cdbdb7cf 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -435,7 +435,7 @@ static long linehandle_ioctl(struct file *filep, unsigned int cmd, int ret = gpiod_get_array_value_complex(false, true, lh->numdescs, - lh->descs, + lh->descs, NULL, value_bitmap); if (ret) return ret; @@ -467,7 +467,7 @@ static long linehandle_ioctl(struct file *filep, unsigned int cmd, return gpiod_set_array_value_complex(false, true, lh->numdescs, - lh->descs, + lh->descs, NULL, value_bitmap); } return -EINVAL; @@ -2784,6 +2784,7 @@ static int gpio_chip_get_multiple(struct gpio_chip *chip, int gpiod_get_array_value_complex(bool raw, bool can_sleep, unsigned int array_size, struct gpio_desc **desc_array, + struct gpio_array *array_info, unsigned long *value_bitmap) { int i = 0; @@ -2908,12 +2909,14 @@ EXPORT_SYMBOL_GPL(gpiod_get_value); */ int gpiod_get_raw_array_value(unsigned int array_size, struct gpio_desc **desc_array, + struct gpio_array *array_info, unsigned long *value_bitmap) { if (!desc_array) return -EINVAL; return gpiod_get_array_value_complex(true, false, array_size, - desc_array, value_bitmap); + desc_array, array_info, + value_bitmap); } EXPORT_SYMBOL_GPL(gpiod_get_raw_array_value); @@ -2931,12 +2934,14 @@ EXPORT_SYMBOL_GPL(gpiod_get_raw_array_value); */ int gpiod_get_array_value(unsigned int array_size, struct gpio_desc **desc_array, + struct gpio_array *array_info, unsigned long *value_bitmap) { if (!desc_array) return -EINVAL; return gpiod_get_array_value_complex(false, false, array_size, - desc_array, value_bitmap); + desc_array, array_info, + value_bitmap); } EXPORT_SYMBOL_GPL(gpiod_get_array_value); @@ -3029,6 +3034,7 @@ static void gpio_chip_set_multiple(struct gpio_chip *chip, int gpiod_set_array_value_complex(bool raw, bool can_sleep, unsigned int array_size, struct gpio_desc **desc_array, + struct gpio_array *array_info, unsigned long *value_bitmap) { int i = 0; @@ -3166,12 +3172,13 @@ EXPORT_SYMBOL_GPL(gpiod_set_value); */ int gpiod_set_raw_array_value(unsigned int array_size, struct gpio_desc **desc_array, + struct gpio_array *array_info, unsigned long *value_bitmap) { if (!desc_array) return -EINVAL; return gpiod_set_array_value_complex(true, false, array_size, - desc_array, value_bitmap); + desc_array, array_info, value_bitmap); } EXPORT_SYMBOL_GPL(gpiod_set_raw_array_value); @@ -3189,12 +3196,13 @@ EXPORT_SYMBOL_GPL(gpiod_set_raw_array_value); */ void gpiod_set_array_value(unsigned int array_size, struct gpio_desc **desc_array, + struct gpio_array *array_info, unsigned long *value_bitmap) { if (!desc_array) return; gpiod_set_array_value_complex(false, false, array_size, desc_array, - value_bitmap); + array_info, value_bitmap); } EXPORT_SYMBOL_GPL(gpiod_set_array_value); @@ -3426,13 +3434,15 @@ EXPORT_SYMBOL_GPL(gpiod_get_value_cansleep); */ int gpiod_get_raw_array_value_cansleep(unsigned int array_size, struct gpio_desc **desc_array, + struct gpio_array *array_info, unsigned long *value_bitmap) { might_sleep_if(extra_checks); if (!desc_array) return -EINVAL; return gpiod_get_array_value_complex(true, true, array_size, - desc_array, value_bitmap); + desc_array, array_info, + value_bitmap); } EXPORT_SYMBOL_GPL(gpiod_get_raw_array_value_cansleep); @@ -3449,13 +3459,15 @@ EXPORT_SYMBOL_GPL(gpiod_get_raw_array_value_cansleep); */ int gpiod_get_array_value_cansleep(unsigned int array_size, struct gpio_desc **desc_array, + struct gpio_array *array_info, unsigned long *value_bitmap) { might_sleep_if(extra_checks); if (!desc_array) return -EINVAL; return gpiod_get_array_value_complex(false, true, array_size, - desc_array, value_bitmap); + desc_array, array_info, + value_bitmap); } EXPORT_SYMBOL_GPL(gpiod_get_array_value_cansleep); @@ -3508,13 +3520,14 @@ EXPORT_SYMBOL_GPL(gpiod_set_value_cansleep); */ int gpiod_set_raw_array_value_cansleep(unsigned int array_size, struct gpio_desc **desc_array, + struct gpio_array *array_info, unsigned long *value_bitmap) { might_sleep_if(extra_checks); if (!desc_array) return -EINVAL; return gpiod_set_array_value_complex(true, true, array_size, desc_array, - value_bitmap); + array_info, value_bitmap); } EXPORT_SYMBOL_GPL(gpiod_set_raw_array_value_cansleep); @@ -3548,13 +3561,14 @@ void gpiod_add_lookup_tables(struct gpiod_lookup_table **tables, size_t n) */ void gpiod_set_array_value_cansleep(unsigned int array_size, struct gpio_desc **desc_array, + struct gpio_array *array_info, unsigned long *value_bitmap) { might_sleep_if(extra_checks); if (!desc_array) return; gpiod_set_array_value_complex(false, true, array_size, desc_array, - value_bitmap); + array_info, value_bitmap); } EXPORT_SYMBOL_GPL(gpiod_set_array_value_cansleep); diff --git a/drivers/gpio/gpiolib.h b/drivers/gpio/gpiolib.h index b60905d558b1..b65ca896b24d 100644 --- a/drivers/gpio/gpiolib.h +++ b/drivers/gpio/gpiolib.h @@ -196,10 +196,12 @@ struct gpio_desc *gpiochip_get_desc(struct gpio_chip *chip, u16 hwnum); int gpiod_get_array_value_complex(bool raw, bool can_sleep, unsigned int array_size, struct gpio_desc **desc_array, + struct gpio_array *array_info, unsigned long *value_bitmap); int gpiod_set_array_value_complex(bool raw, bool can_sleep, unsigned int array_size, struct gpio_desc **desc_array, + struct gpio_array *array_info, unsigned long *value_bitmap); /* This is just passed between gpiolib and devres */ diff --git a/drivers/i2c/muxes/i2c-mux-gpio.c b/drivers/i2c/muxes/i2c-mux-gpio.c index d675e0ca2fa4..aa3857ab42b5 100644 --- a/drivers/i2c/muxes/i2c-mux-gpio.c +++ b/drivers/i2c/muxes/i2c-mux-gpio.c @@ -34,7 +34,7 @@ static void i2c_mux_gpio_set(const struct gpiomux *mux, unsigned val) mux->values[i] = (val >> i) & 1; gpiod_set_array_value_cansleep(mux->data.n_gpios, - mux->gpios, value_bitmap); + mux->gpios, NULL, value_bitmap); } static int i2c_mux_gpio_select(struct i2c_mux_core *muxc, u32 chan) diff --git a/drivers/mmc/core/pwrseq_simple.c b/drivers/mmc/core/pwrseq_simple.c index 0d6e3a5be3ba..5cf7eda8f68f 100644 --- a/drivers/mmc/core/pwrseq_simple.c +++ b/drivers/mmc/core/pwrseq_simple.c @@ -46,7 +46,7 @@ static void mmc_pwrseq_simple_set_gpios_value(struct mmc_pwrseq_simple *pwrseq, value_bitmap[0] = value; gpiod_set_array_value_cansleep(nvalues, reset_gpios->desc, - value_bitmap); + reset_gpios->info, value_bitmap); } } diff --git a/drivers/mux/gpio.c b/drivers/mux/gpio.c index cc2d5f50472a..879f9f3f45dd 100644 --- a/drivers/mux/gpio.c +++ b/drivers/mux/gpio.c @@ -30,7 +30,8 @@ static int mux_gpio_set(struct mux_control *mux, int state) mux_gpio->val[i] = (state >> i) & 1; gpiod_set_array_value_cansleep(mux_gpio->gpios->ndescs, - mux_gpio->gpios->desc, value_bitmap); + mux_gpio->gpios->desc, + mux_gpio->gpios->info, value_bitmap); return 0; } diff --git a/drivers/net/phy/mdio-mux-gpio.c b/drivers/net/phy/mdio-mux-gpio.c index 8e1ec750277e..c0ffa03c916b 100644 --- a/drivers/net/phy/mdio-mux-gpio.c +++ b/drivers/net/phy/mdio-mux-gpio.c @@ -37,7 +37,7 @@ static int mdio_mux_gpio_switch_fn(int current_child, int desired_child, s->values[n] = (desired_child >> n) & 1; gpiod_set_array_value_cansleep(s->gpios->ndescs, s->gpios->desc, - value_bitmap); + s->gpios->info, value_bitmap); return 0; } diff --git a/drivers/pcmcia/soc_common.c b/drivers/pcmcia/soc_common.c index e0f89155c474..55978198cd2b 100644 --- a/drivers/pcmcia/soc_common.c +++ b/drivers/pcmcia/soc_common.c @@ -366,7 +366,8 @@ static int soc_common_pcmcia_config_skt( } if (n) - gpiod_set_array_value_cansleep(n, descs, value_bitmap); + gpiod_set_array_value_cansleep(n, descs, NULL, + value_bitmap); /* * This really needs a better solution. The IRQ diff --git a/drivers/phy/motorola/phy-mapphone-mdm6600.c b/drivers/phy/motorola/phy-mapphone-mdm6600.c index b6477c3599c4..8f508338ec56 100644 --- a/drivers/phy/motorola/phy-mapphone-mdm6600.c +++ b/drivers/phy/motorola/phy-mapphone-mdm6600.c @@ -162,7 +162,8 @@ static void phy_mdm6600_cmd(struct phy_mdm6600 *ddata, int val) value_bitmap[0] = val & ((1 << PHY_MDM6600_NR_CMD_LINES) - 1); gpiod_set_array_value_cansleep(PHY_MDM6600_NR_CMD_LINES, - ddata->cmd_gpios->desc, value_bitmap); + ddata->cmd_gpios->desc, + ddata->cmd_gpios->info, value_bitmap); } /** @@ -181,6 +182,7 @@ static void phy_mdm6600_status(struct work_struct *work) error = gpiod_get_array_value_cansleep(PHY_MDM6600_NR_STATUS_LINES, ddata->status_gpios->desc, + ddata->status_gpios->info, value_bitmap); if (error) return; diff --git a/drivers/staging/iio/adc/ad7606.c b/drivers/staging/iio/adc/ad7606.c index 0eca047bc1cc..eb779d825724 100644 --- a/drivers/staging/iio/adc/ad7606.c +++ b/drivers/staging/iio/adc/ad7606.c @@ -230,7 +230,8 @@ static int ad7606_write_raw(struct iio_dev *indio_dev, value_bitmap[0] = ret; mutex_lock(&st->lock); - gpiod_set_array_value(3, st->gpio_os->desc, value_bitmap); + gpiod_set_array_value(3, st->gpio_os->desc, st->gpio_os->info, + value_bitmap); st->oversampling = val; mutex_unlock(&st->lock); diff --git a/drivers/tty/serial/serial_mctrl_gpio.c b/drivers/tty/serial/serial_mctrl_gpio.c index bb8b4756d72d..8a04e3be5419 100644 --- a/drivers/tty/serial/serial_mctrl_gpio.c +++ b/drivers/tty/serial/serial_mctrl_gpio.c @@ -53,7 +53,7 @@ void mctrl_gpio_set(struct mctrl_gpios *gpios, unsigned int mctrl) !!(mctrl & mctrl_gpios_desc[i].mctrl)); count++; } - gpiod_set_array_value(count, desc_array, value_bitmap); + gpiod_set_array_value(count, desc_array, NULL, value_bitmap); } EXPORT_SYMBOL_GPL(mctrl_gpio_set); diff --git a/include/linux/gpio/consumer.h b/include/linux/gpio/consumer.h index 8dede3e886af..bf037ebe2ed8 100644 --- a/include/linux/gpio/consumer.h +++ b/include/linux/gpio/consumer.h @@ -114,36 +114,44 @@ int gpiod_direction_output_raw(struct gpio_desc *desc, int value); int gpiod_get_value(const struct gpio_desc *desc); int gpiod_get_array_value(unsigned int array_size, struct gpio_desc **desc_array, + struct gpio_array *array_info, unsigned long *value_bitmap); void gpiod_set_value(struct gpio_desc *desc, int value); void gpiod_set_array_value(unsigned int array_size, struct gpio_desc **desc_array, + struct gpio_array *array_info, unsigned long *value_bitmap); int gpiod_get_raw_value(const struct gpio_desc *desc); int gpiod_get_raw_array_value(unsigned int array_size, struct gpio_desc **desc_array, + struct gpio_array *array_info, unsigned long *value_bitmap); void gpiod_set_raw_value(struct gpio_desc *desc, int value); int gpiod_set_raw_array_value(unsigned int array_size, struct gpio_desc **desc_array, + struct gpio_array *array_info, unsigned long *value_bitmap); /* Value get/set from sleeping context */ int gpiod_get_value_cansleep(const struct gpio_desc *desc); int gpiod_get_array_value_cansleep(unsigned int array_size, struct gpio_desc **desc_array, + struct gpio_array *array_info, unsigned long *value_bitmap); void gpiod_set_value_cansleep(struct gpio_desc *desc, int value); void gpiod_set_array_value_cansleep(unsigned int array_size, struct gpio_desc **desc_array, + struct gpio_array *array_info, unsigned long *value_bitmap); int gpiod_get_raw_value_cansleep(const struct gpio_desc *desc); int gpiod_get_raw_array_value_cansleep(unsigned int array_size, struct gpio_desc **desc_array, + struct gpio_array *array_info, unsigned long *value_bitmap); void gpiod_set_raw_value_cansleep(struct gpio_desc *desc, int value); int gpiod_set_raw_array_value_cansleep(unsigned int array_size, struct gpio_desc **desc_array, + struct gpio_array *array_info, unsigned long *value_bitmap); int gpiod_set_debounce(struct gpio_desc *desc, unsigned debounce);