From: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
To: linux-gpio@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org
Cc: Linus Walleij <linus.walleij@linaro.org>,
Bartosz Golaszewski <bgolaszewski@baylibre.com>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Lee Jones <lee.jones@linaro.org>,
Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Subject: [PATCH v2 3/5] gpio: syscon: Add support for a custom get operation
Date: Wed, 25 Sep 2019 10:45:53 +0200 [thread overview]
Message-ID: <20190925084555.147771-4-paul.kocialkowski@bootlin.com> (raw)
In-Reply-To: <20190925084555.147771-1-paul.kocialkowski@bootlin.com>
Some drivers might need a custom get operation to match custom
behavior implemented in the set operation.
Add plumbing for supporting that.
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
---
drivers/gpio/gpio-syscon.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/gpio/gpio-syscon.c b/drivers/gpio/gpio-syscon.c
index 31f332074d7d..05c537ed73f1 100644
--- a/drivers/gpio/gpio-syscon.c
+++ b/drivers/gpio/gpio-syscon.c
@@ -43,8 +43,9 @@ struct syscon_gpio_data {
unsigned int bit_count;
unsigned int dat_bit_offset;
unsigned int dir_bit_offset;
- void (*set)(struct gpio_chip *chip,
- unsigned offset, int value);
+ int (*get)(struct gpio_chip *chip, unsigned offset);
+ void (*set)(struct gpio_chip *chip, unsigned offset,
+ int value);
};
struct syscon_gpio_priv {
@@ -252,7 +253,7 @@ static int syscon_gpio_probe(struct platform_device *pdev)
priv->chip.label = dev_name(dev);
priv->chip.base = -1;
priv->chip.ngpio = priv->data->bit_count;
- priv->chip.get = syscon_gpio_get;
+ priv->chip.get = priv->data->get ? : syscon_gpio_get;
if (priv->data->flags & GPIO_SYSCON_FEAT_IN)
priv->chip.direction_input = syscon_gpio_dir_in;
if (priv->data->flags & GPIO_SYSCON_FEAT_OUT) {
--
2.23.0
next prev parent reply other threads:[~2019-09-25 8:46 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-25 8:45 [PATCH v2 0/5] LogiCVC mfd and GPIO support Paul Kocialkowski
2019-09-25 8:45 ` [PATCH v2 1/5] dt-bindings: Add Xylon vendor prefix Paul Kocialkowski
2019-09-25 8:45 ` [PATCH v2 2/5] dt-bindings: mfd: Document the Xylon LogiCVC multi-function device Paul Kocialkowski
2019-09-25 8:45 ` Paul Kocialkowski [this message]
2019-09-25 8:45 ` [PATCH v2 4/5] dt-bindings: gpio: Document the Xylon LogiCVC GPIO controller Paul Kocialkowski
2019-09-25 8:45 ` [PATCH v2 5/5] gpio: syscon: Add support for the Xylon LogiCVC GPIOs Paul Kocialkowski
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