linux-kernel - [PATCH 1/5] mfd: sunxi-gpadc-mfd: add TP_UP

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Message-Id: <1469003351-15263-2-git-send-email-quentin.schulz@free-electrons.com>
Date:	Wed, 20 Jul 2016 10:29:07 +0200
From:	Quentin Schulz <quentin.schulz@...e-electrons.com>
To:	jic23@...nel.org, knaack.h@....de, lars@...afoo.de,
	pmeerw@...erw.net, maxime.ripard@...e-electrons.com, wens@...e.org,
	dmitry.torokhov@...il.com, lee.jones@...aro.org
Cc:	Quentin Schulz <quentin.schulz@...e-electrons.com>,
	antoine.tenart@...e-electrons.com,
	thomas.petazzoni@...e-electrons.com, linux-kernel@...r.kernel.org,
	linux-iio@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-input@...r.kernel.org
Subject: [PATCH 1/5] mfd: sunxi-gpadc-mfd: add TP_UP_PENDING irq

This adds support for TP_UP_PENDING irq in Allwinner SoCs' GPADC's MFD.

This interrupt occurs when a touchscreen is attached and the thing (stylus,
finger) currently touching the touchscreen releases the touch.

Signed-off-by: Quentin Schulz <quentin.schulz@...e-electrons.com>
---
 drivers/mfd/sunxi-gpadc-mfd.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/mfd/sunxi-gpadc-mfd.c b/drivers/mfd/sunxi-gpadc-mfd.c
index f0005a6..05a000b 100644
--- a/drivers/mfd/sunxi-gpadc-mfd.c
+++ b/drivers/mfd/sunxi-gpadc-mfd.c
@@ -19,6 +19,8 @@
 
 #define SUNXI_IRQ_FIFO_DATA	0
 #define SUNXI_IRQ_TEMP_DATA	1
+#define SUNXI_IRQ_TP_UP		2
+
 
 static struct resource adc_resources[] = {
 	{
@@ -34,9 +36,19 @@ static struct resource adc_resources[] = {
 	},
 };
 
+static struct resource ts_resources[] = {
+	{
+		.name	= "TP_UP_PENDING",
+		.start	= SUNXI_IRQ_TP_UP,
+		.end	= SUNXI_IRQ_TP_UP,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
 static const struct regmap_irq sunxi_gpadc_mfd_regmap_irq[] = {
 	REGMAP_IRQ_REG(SUNXI_IRQ_FIFO_DATA, 0, BIT(16)),
 	REGMAP_IRQ_REG(SUNXI_IRQ_TEMP_DATA, 0, BIT(18)),
+	REGMAP_IRQ_REG(SUNXI_IRQ_TP_UP, 0, BIT(1)),
 };
 
 static const struct regmap_irq_chip sunxi_gpadc_mfd_regmap_irq_chip = {
-- 
2.5.0