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Date: Tue, 21 May 2019 11:38:22 +0300 From: Bogdan Togorean <bogdan.togorean@...log.com> To: <linux-input@...r.kernel.org> CC: <dmitry.torokhov@...il.com>, <gustavo@...eddedor.com>, <linux-kernel@...r.kernel.org>, <Michael.Hennerich@...log.com>, Bogdan Togorean <bogdan.togorean@...log.com> Subject: [PATCH RESEND] input: adp5589: Add gpio_set_multiple interface This patch implements the gpio_set_multiple interface for ADP558x chip. Signed-off-by: Bogdan Togorean <bogdan.togorean@...log.com> --- drivers/input/keyboard/adp5589-keys.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/drivers/input/keyboard/adp5589-keys.c b/drivers/input/keyboard/adp5589-keys.c index 2835fba71c33..143871bd60ef 100644 --- a/drivers/input/keyboard/adp5589-keys.c +++ b/drivers/input/keyboard/adp5589-keys.c @@ -416,6 +416,30 @@ static void adp5589_gpio_set_value(struct gpio_chip *chip, mutex_unlock(&kpad->gpio_lock); } +static void adp5589_gpio_set_multiple(struct gpio_chip *chip, + unsigned long *mask, unsigned long *bits) +{ + struct adp5589_kpad *kpad = container_of(chip, struct adp5589_kpad, gc); + u8 bank, reg_mask, reg_bits; + + mutex_lock(&kpad->gpio_lock); + + for (bank = 0; bank <= kpad->var->bank(kpad->var->maxgpio); bank++) { + if (bank > kpad->var->bank(get_bitmask_order(*mask) - 1)) + break; + reg_mask = mask[bank / sizeof(*mask)] >> + ((bank % sizeof(*mask)) * BITS_PER_BYTE); + reg_bits = bits[bank / sizeof(*bits)] >> + ((bank % sizeof(*bits)) * BITS_PER_BYTE); + kpad->dat_out[bank] &= ~reg_mask; + kpad->dat_out[bank] |= reg_bits & reg_mask; + adp5589_write(kpad->client, kpad->var->reg(ADP5589_GPO_DATA_OUT_A) + bank, + kpad->dat_out[bank]); + } + + mutex_unlock(&kpad->gpio_lock); +} + static int adp5589_gpio_direction_input(struct gpio_chip *chip, unsigned off) { struct adp5589_kpad *kpad = gpiochip_get_data(chip); @@ -517,6 +541,7 @@ static int adp5589_gpio_add(struct adp5589_kpad *kpad) kpad->gc.direction_output = adp5589_gpio_direction_output; kpad->gc.get = adp5589_gpio_get_value; kpad->gc.set = adp5589_gpio_set_value; + kpad->gc.set_multiple = adp5589_gpio_set_multiple; kpad->gc.can_sleep = 1; kpad->gc.base = gpio_data->gpio_start; -- 2.21.0
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