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From: Andrey Smirnov <andrew.smirnov@gmail.com>
To: barebox@lists.infradead.org
Cc: Andrey Smirnov <andrew.smirnov@gmail.com>
Subject: [PATCH 05/20] pinctrl: at91: Implement .get_direction hook
Date: Wed,  8 Mar 2017 14:08:54 -0800	[thread overview]
Message-ID: <20170308220909.4560-6-andrew.smirnov@gmail.com> (raw)
In-Reply-To: <20170308220909.4560-1-andrew.smirnov@gmail.com>

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
---
 drivers/pinctrl/pinctrl-at91.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c
index 34fb0ae..021c1e5 100644
--- a/drivers/pinctrl/pinctrl-at91.c
+++ b/drivers/pinctrl/pinctrl-at91.c
@@ -568,6 +568,21 @@ static int at91_gpio_direction_output(struct gpio_chip *chip, unsigned offset,
 	return 0;
 }
 
+static int at91_gpio_get_direction(struct gpio_chip *chip, unsigned offset)
+{
+	struct at91_gpio_chip *at91_gpio = to_at91_gpio_chip(chip);
+	void __iomem *pio = at91_gpio->regbase;
+	unsigned mask = 1 << offset;
+	u32 osr;
+
+	if (mask & __raw_readl(pio + PIO_PSR)) {
+		osr = __raw_readl(pio + PIO_OSR);
+		return !(osr & mask);
+	} else {
+		return -EBUSY;
+	}
+}
+
 static int at91_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
 {
 	struct at91_gpio_chip *at91_gpio = to_at91_gpio_chip(chip);
@@ -603,6 +618,7 @@ static struct gpio_ops at91_gpio_ops = {
 	.free = at91_gpio_free,
 	.direction_input = at91_gpio_direction_input,
 	.direction_output = at91_gpio_direction_output,
+	.get_direction = at91_gpio_get_direction,
 	.get = at91_gpio_get,
 	.set = at91_gpio_set,
 };
-- 
2.9.3


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  parent reply	other threads:[~2017-03-08 22:09 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-08 22:08 [PATCH 00/20] AT91, at91sam9x5ek updates (part I/III) Andrey Smirnov
2017-03-08 22:08 ` [PATCH 01/20] at91: Fix bug/typo in debug_ll.h Andrey Smirnov
2017-03-08 22:08 ` [PATCH 02/20] regmap: Implement syscon_node_to_regmap() Andrey Smirnov
2017-03-08 22:08 ` [PATCH 03/20] pinctrl: at91: Fix a bug in at91_pinctrl_set_conf() Andrey Smirnov
2017-03-08 22:08 ` [PATCH 04/20] pinctrl: at91: Fix a bug in at91_pinctrl_set_state() Andrey Smirnov
2017-03-08 22:08 ` Andrey Smirnov [this message]
2017-03-08 22:08 ` [PATCH 06/20] clk: Port two helper functions from Linux Andrey Smirnov
2017-03-08 22:08 ` [PATCH 07/20] clk: Make COMMON_CLK_OF_PROVIDER depend on OFTREE Andrey Smirnov
2017-03-08 22:08 ` [PATCH 08/20] clk: No-op CLK_OF_DECLARE if not enabled Andrey Smirnov
2017-03-09 10:54   ` Sascha Hauer
2017-03-08 22:08 ` [PATCH 09/20] of: base: Use scoring in DT device matching Andrey Smirnov
2017-03-08 22:08 ` [PATCH 10/20] serial: atmel: Check result of clk_get() Andrey Smirnov
2017-03-08 22:09 ` [PATCH 11/20] usb: ohci-at91: " Andrey Smirnov
2017-03-08 22:09 ` [PATCH 12/20] usb: ohci-at91: Convert global variables to private data Andrey Smirnov
2017-03-08 22:09 ` [PATCH 13/20] usb: ohci-at91: Check result of clk_enable() Andrey Smirnov
2017-03-08 22:09 ` [PATCH 14/20] usb: ehci-atmel: " Andrey Smirnov
2017-03-08 22:09 ` [PATCH 15/20] usb: echi-atmel: Convert global variables to private data Andrey Smirnov
2017-03-08 22:09 ` [PATCH 16/20] usb: ehci-atmel: Zero ehci_data before using it Andrey Smirnov
2017-03-08 22:09 ` [PATCH 17/20] usb: echi-atmel: Check result of ehci_register() Andrey Smirnov
2017-03-08 22:09 ` [PATCH 18/20] spi: atmel_spi: Configure CS GPIO as output Andrey Smirnov
2017-03-08 22:09 ` [PATCH 19/20] spi: atmel_spi: Use VERSION register instead of CPU type Andrey Smirnov
2017-03-08 22:09 ` [PATCH 20/20] clocksource: at91: Move to 'drivers/clocksource' Andrey Smirnov
2017-03-09  7:19 ` [PATCH 00/20] AT91, at91sam9x5ek updates (part I/III) Sascha Hauer

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