[PATCH v10 0/5] ARM: sunxi: Add support for consumer infrared devices

[PATCH v10 0/5] ARM: sunxi: Add support for consumer infrared devices

[Alexander Bersenev]

This patch introduces Consumer IR(CIR) support for sunxi boards.

This is based on Alexsey Shestacov's work based on the original driver 
supplied by Allwinner.

Signed-off-by: Alexander Bersenev <bay@hackerdom.ru>
Signed-off-by: Alexsey Shestacov <wingrime@linux-sunxi.org>

---
Changes since version 1: 
 - Fix timer memory leaks 
 - Fix race condition when driver unloads while interrupt handler is active
 - Support Cubieboard 2(need testing)

Changes since version 2:
- More reliable keydown events
- Documentation fixes
- Rename registers accurding to A20 user manual
- Remove some includes, order includes alphabetically
- Use BIT macro
- Typo fixes

Changes since version 3:
- Split the patch on smaller parts
- More documentation fixes
- Add clock-names in DT
- Use devm_clk_get function to get the clocks
- Removed gpios property from ir's DT
- Changed compatible from allwinner,sunxi-ir to allwinner,sun7i-a20-ir in DT
- Use spin_lock_irq instead spin_lock_irqsave in interrupt handler
- Add myself in the copyright ;)
- Coding style and indentation fixes

Changes since version 4:
- Try to fix indentation errors by sending patches with git send-mail

Changes since version 5:
- More indentation fixes
- Make patches pass checkpatch with --strict option
- Replaced magic numbers with defines(patch by Priit Laes)
- Fixed oops on loading(patch by Hans de Goede)

Changes since version 6:
- Removed constants from code
- Better errrors handling on loading
- Renamed sunxi-ir.c to sunxi-cir.c
- Changed description of second commit
- Order entries in dts and dtsi by register address
- Code style fixes

Changes since version 7:
- Removed a couple of blank lines in code
- Delay interrupts init until we are ready to handle them
- Increased the reported duration of each pulse by one
- Refactored defines

Changes since version 8:
- Split the DT patch to three
- Code style fixes

Changes since version 9:
- Rebase patches on 3.16-rc1

Alexander Bersenev (5):
  ARM: sunxi: Add documentation for sunxi consumer infrared devices
  [media] rc: add sunxi-ir driver
  ARM: sunxi: Add pins for IR controller on A20 to dtsi
  ARM: sunxi: Add IR controllers on A20 to dtsi
  ARM: sunxi: Enable IR controller on cubieboard 2 and cubietruck in
    dts

 .../devicetree/bindings/media/sunxi-ir.txt         |   23 ++
 arch/arm/boot/dts/sun7i-a20-cubieboard2.dts        |    6 +
 arch/arm/boot/dts/sun7i-a20-cubietruck.dts         |    6 +
 arch/arm/boot/dts/sun7i-a20.dtsi                   |   32 ++
 drivers/media/rc/Kconfig                           |   10 +
 drivers/media/rc/Makefile                          |    1 +
 drivers/media/rc/sunxi-cir.c                       |  318 ++++++++++++++++++++
 7 files changed, 396 insertions(+), 0 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/media/sunxi-ir.txt
 create mode 100644 drivers/media/rc/sunxi-cir.c

[PATCH v10 0/5] ARM: sunxi: Add support for consumer infrared devices

[Alexander Bersenev]

This patch introduces Consumer IR(CIR) support for sunxi boards.

This is based on Alexsey Shestacov's work based on the original driver 
supplied by Allwinner.

Signed-off-by: Alexander Bersenev <bay-d8LqKIyZzER6k2ZkT/Rh8A@public.gmane.org>
Signed-off-by: Alexsey Shestacov <wingrime-3kdeTeqwOZ9EV1b7eY7vFQ@public.gmane.org>

---
Changes since version 1: 
 - Fix timer memory leaks 
 - Fix race condition when driver unloads while interrupt handler is active
 - Support Cubieboard 2(need testing)

Changes since version 2:
- More reliable keydown events
- Documentation fixes
- Rename registers accurding to A20 user manual
- Remove some includes, order includes alphabetically
- Use BIT macro
- Typo fixes

Changes since version 3:
- Split the patch on smaller parts
- More documentation fixes
- Add clock-names in DT
- Use devm_clk_get function to get the clocks
- Removed gpios property from ir's DT
- Changed compatible from allwinner,sunxi-ir to allwinner,sun7i-a20-ir in DT
- Use spin_lock_irq instead spin_lock_irqsave in interrupt handler
- Add myself in the copyright ;)
- Coding style and indentation fixes

Changes since version 4:
- Try to fix indentation errors by sending patches with git send-mail

Changes since version 5:
- More indentation fixes
- Make patches pass checkpatch with --strict option
- Replaced magic numbers with defines(patch by Priit Laes)
- Fixed oops on loading(patch by Hans de Goede)

Changes since version 6:
- Removed constants from code
- Better errrors handling on loading
- Renamed sunxi-ir.c to sunxi-cir.c
- Changed description of second commit
- Order entries in dts and dtsi by register address
- Code style fixes

Changes since version 7:
- Removed a couple of blank lines in code
- Delay interrupts init until we are ready to handle them
- Increased the reported duration of each pulse by one
- Refactored defines

Changes since version 8:
- Split the DT patch to three
- Code style fixes

Changes since version 9:
- Rebase patches on 3.16-rc1

Alexander Bersenev (5):
  ARM: sunxi: Add documentation for sunxi consumer infrared devices
  [media] rc: add sunxi-ir driver
  ARM: sunxi: Add pins for IR controller on A20 to dtsi
  ARM: sunxi: Add IR controllers on A20 to dtsi
  ARM: sunxi: Enable IR controller on cubieboard 2 and cubietruck in
    dts

 .../devicetree/bindings/media/sunxi-ir.txt         |   23 ++
 arch/arm/boot/dts/sun7i-a20-cubieboard2.dts        |    6 +
 arch/arm/boot/dts/sun7i-a20-cubietruck.dts         |    6 +
 arch/arm/boot/dts/sun7i-a20.dtsi                   |   32 ++
 drivers/media/rc/Kconfig                           |   10 +
 drivers/media/rc/Makefile                          |    1 +
 drivers/media/rc/sunxi-cir.c                       |  318 ++++++++++++++++++++
 7 files changed, 396 insertions(+), 0 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/media/sunxi-ir.txt
 create mode 100644 drivers/media/rc/sunxi-cir.c

[PATCH v10 0/5] ARM: sunxi: Add support for consumer infrared devices

[Alexander Bersenev]

This patch introduces Consumer IR(CIR) support for sunxi boards.

This is based on Alexsey Shestacov's work based on the original driver 
supplied by Allwinner.

Signed-off-by: Alexander Bersenev <bay@hackerdom.ru>
Signed-off-by: Alexsey Shestacov <wingrime@linux-sunxi.org>

---
Changes since version 1: 
 - Fix timer memory leaks 
 - Fix race condition when driver unloads while interrupt handler is active
 - Support Cubieboard 2(need testing)

Changes since version 2:
- More reliable keydown events
- Documentation fixes
- Rename registers accurding to A20 user manual
- Remove some includes, order includes alphabetically
- Use BIT macro
- Typo fixes

Changes since version 3:
- Split the patch on smaller parts
- More documentation fixes
- Add clock-names in DT
- Use devm_clk_get function to get the clocks
- Removed gpios property from ir's DT
- Changed compatible from allwinner,sunxi-ir to allwinner,sun7i-a20-ir in DT
- Use spin_lock_irq instead spin_lock_irqsave in interrupt handler
- Add myself in the copyright ;)
- Coding style and indentation fixes

Changes since version 4:
- Try to fix indentation errors by sending patches with git send-mail

Changes since version 5:
- More indentation fixes
- Make patches pass checkpatch with --strict option
- Replaced magic numbers with defines(patch by Priit Laes)
- Fixed oops on loading(patch by Hans de Goede)

Changes since version 6:
- Removed constants from code
- Better errrors handling on loading
- Renamed sunxi-ir.c to sunxi-cir.c
- Changed description of second commit
- Order entries in dts and dtsi by register address
- Code style fixes

Changes since version 7:
- Removed a couple of blank lines in code
- Delay interrupts init until we are ready to handle them
- Increased the reported duration of each pulse by one
- Refactored defines

Changes since version 8:
- Split the DT patch to three
- Code style fixes

Changes since version 9:
- Rebase patches on 3.16-rc1

Alexander Bersenev (5):
  ARM: sunxi: Add documentation for sunxi consumer infrared devices
  [media] rc: add sunxi-ir driver
  ARM: sunxi: Add pins for IR controller on A20 to dtsi
  ARM: sunxi: Add IR controllers on A20 to dtsi
  ARM: sunxi: Enable IR controller on cubieboard 2 and cubietruck in
    dts

 .../devicetree/bindings/media/sunxi-ir.txt         |   23 ++
 arch/arm/boot/dts/sun7i-a20-cubieboard2.dts        |    6 +
 arch/arm/boot/dts/sun7i-a20-cubietruck.dts         |    6 +
 arch/arm/boot/dts/sun7i-a20.dtsi                   |   32 ++
 drivers/media/rc/Kconfig                           |   10 +
 drivers/media/rc/Makefile                          |    1 +
 drivers/media/rc/sunxi-cir.c                       |  318 ++++++++++++++++++++
 7 files changed, 396 insertions(+), 0 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/media/sunxi-ir.txt
 create mode 100644 drivers/media/rc/sunxi-cir.c

[PATCH v10 1/5] ARM: sunxi: Add documentation for sunxi consumer infrared devices

[Alexander Bersenev]

This patch adds documentation for Device-Tree bindings for sunxi IR
controller.

Signed-off-by: Alexander Bersenev <bay@hackerdom.ru>
Signed-off-by: Alexsey Shestacov <wingrime@linux-sunxi.org>
---
 .../devicetree/bindings/media/sunxi-ir.txt         |   23 ++++++++++++++++++++
 1 files changed, 23 insertions(+), 0 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/media/sunxi-ir.txt

diff --git a/Documentation/devicetree/bindings/media/sunxi-ir.txt b/Documentation/devicetree/bindings/media/sunxi-ir.txt
new file mode 100644
index 0000000..014dd8b
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/sunxi-ir.txt
@@ -0,0 +1,23 @@
+Device-Tree bindings for SUNXI IR controller found in sunXi SoC family
+
+Required properties:
+- compatible	    : should be "allwinner,sun7i-a20-ir";
+- clocks	    : list of clock specifiers, corresponding to
+		      entries in clock-names property;
+- clock-names	    : should contain "apb" and "ir" entries;
+- interrupts	    : should contain IR IRQ number;
+- reg		    : should contain IO map address for IR.
+
+Optional properties:
+- linux,rc-map-name : Remote control map name.
+
+Example:
+
+ir0: ir@01c21800 {
+	compatible = "allwinner,sun7i-a20-ir";
+	clocks = <&apb0_gates 6>, <&ir0_clk>;
+	clock-names = "apb", "ir";
+	interrupts = <0 5 1>;
+	reg = <0x01C21800 0x40>;
+	linux,rc-map-name = "rc-rc6-mce";
+};
-- 
1.7.1

[PATCH v10 1/5] ARM: sunxi: Add documentation for sunxi consumer infrared devices

[Alexander Bersenev]

This patch adds documentation for Device-Tree bindings for sunxi IR
controller.

Signed-off-by: Alexander Bersenev <bay-d8LqKIyZzER6k2ZkT/Rh8A@public.gmane.org>
Signed-off-by: Alexsey Shestacov <wingrime-3kdeTeqwOZ9EV1b7eY7vFQ@public.gmane.org>
---
 .../devicetree/bindings/media/sunxi-ir.txt         |   23 ++++++++++++++++++++
 1 files changed, 23 insertions(+), 0 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/media/sunxi-ir.txt

diff --git a/Documentation/devicetree/bindings/media/sunxi-ir.txt b/Documentation/devicetree/bindings/media/sunxi-ir.txt
new file mode 100644
index 0000000..014dd8b
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/sunxi-ir.txt
@@ -0,0 +1,23 @@
+Device-Tree bindings for SUNXI IR controller found in sunXi SoC family
+
+Required properties:
+- compatible	    : should be "allwinner,sun7i-a20-ir";
+- clocks	    : list of clock specifiers, corresponding to
+		      entries in clock-names property;
+- clock-names	    : should contain "apb" and "ir" entries;
+- interrupts	    : should contain IR IRQ number;
+- reg		    : should contain IO map address for IR.
+
+Optional properties:
+- linux,rc-map-name : Remote control map name.
+
+Example:
+
+ir0: ir@01c21800 {
+	compatible = "allwinner,sun7i-a20-ir";
+	clocks = <&apb0_gates 6>, <&ir0_clk>;
+	clock-names = "apb", "ir";
+	interrupts = <0 5 1>;
+	reg = <0x01C21800 0x40>;
+	linux,rc-map-name = "rc-rc6-mce";
+};
-- 
1.7.1

[PATCH v10 1/5] ARM: sunxi: Add documentation for sunxi consumer infrared devices

[Alexander Bersenev]

This patch adds documentation for Device-Tree bindings for sunxi IR
controller.

Signed-off-by: Alexander Bersenev <bay@hackerdom.ru>
Signed-off-by: Alexsey Shestacov <wingrime@linux-sunxi.org>
---
 .../devicetree/bindings/media/sunxi-ir.txt         |   23 ++++++++++++++++++++
 1 files changed, 23 insertions(+), 0 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/media/sunxi-ir.txt

diff --git a/Documentation/devicetree/bindings/media/sunxi-ir.txt b/Documentation/devicetree/bindings/media/sunxi-ir.txt
new file mode 100644
index 0000000..014dd8b
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/sunxi-ir.txt
@@ -0,0 +1,23 @@
+Device-Tree bindings for SUNXI IR controller found in sunXi SoC family
+
+Required properties:
+- compatible	    : should be "allwinner,sun7i-a20-ir";
+- clocks	    : list of clock specifiers, corresponding to
+		      entries in clock-names property;
+- clock-names	    : should contain "apb" and "ir" entries;
+- interrupts	    : should contain IR IRQ number;
+- reg		    : should contain IO map address for IR.
+
+Optional properties:
+- linux,rc-map-name : Remote control map name.
+
+Example:
+
+ir0: ir at 01c21800 {
+	compatible = "allwinner,sun7i-a20-ir";
+	clocks = <&apb0_gates 6>, <&ir0_clk>;
+	clock-names = "apb", "ir";
+	interrupts = <0 5 1>;
+	reg = <0x01C21800 0x40>;
+	linux,rc-map-name = "rc-rc6-mce";
+};
-- 
1.7.1

[PATCH v10 2/5] [media] rc: add sunxi-ir driver

[Alexander Bersenev]

This patch adds driver for sunxi IR controller.
It is based on Alexsey Shestacov's work based on the original driver
supplied by Allwinner.

Signed-off-by: Alexander Bersenev <bay@hackerdom.ru>
Signed-off-by: Alexsey Shestacov <wingrime@linux-sunxi.org>
---
 drivers/media/rc/Kconfig     |   10 ++
 drivers/media/rc/Makefile    |    1 +
 drivers/media/rc/sunxi-cir.c |  318 ++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 329 insertions(+), 0 deletions(-)
 create mode 100644 drivers/media/rc/sunxi-cir.c

diff --git a/drivers/media/rc/Kconfig b/drivers/media/rc/Kconfig
index 8fbd377..9427fad 100644
--- a/drivers/media/rc/Kconfig
+++ b/drivers/media/rc/Kconfig
@@ -343,4 +343,14 @@ config RC_ST
 
 	 If you're not sure, select N here.
 
+config IR_SUNXI
+    tristate "SUNXI IR remote control"
+    depends on RC_CORE
+    depends on ARCH_SUNXI
+    ---help---
+      Say Y if you want to use sunXi internal IR Controller
+
+      To compile this driver as a module, choose M here: the module will
+      be called sunxi-ir.
+
 endif #RC_DEVICES
diff --git a/drivers/media/rc/Makefile b/drivers/media/rc/Makefile
index f8b54ff..9ee9ee7 100644
--- a/drivers/media/rc/Makefile
+++ b/drivers/media/rc/Makefile
@@ -32,4 +32,5 @@ obj-$(CONFIG_IR_GPIO_CIR) += gpio-ir-recv.o
 obj-$(CONFIG_IR_IGUANA) += iguanair.o
 obj-$(CONFIG_IR_TTUSBIR) += ttusbir.o
 obj-$(CONFIG_RC_ST) += st_rc.o
+obj-$(CONFIG_IR_SUNXI) += sunxi-cir.o
 obj-$(CONFIG_IR_IMG) += img-ir/
diff --git a/drivers/media/rc/sunxi-cir.c b/drivers/media/rc/sunxi-cir.c
new file mode 100644
index 0000000..5971b69
--- /dev/null
+++ b/drivers/media/rc/sunxi-cir.c
@@ -0,0 +1,318 @@
+/*
+ * Driver for Allwinner sunXi IR controller
+ *
+ * Copyright (C) 2014 Alexsey Shestacov <wingrime@linux-sunxi.org>
+ * Copyright (C) 2014 Alexander Bersenev <bay@hackerdom.ru>
+ *
+ * Based on sun5i-ir.c:
+ * Copyright (C) 2007-2012 Daniel Wang
+ * Allwinner Technology Co., Ltd. <www.allwinnertech.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/clk.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/of_platform.h>
+#include <media/rc-core.h>
+
+#define SUNXI_IR_DEV "sunxi-ir"
+
+/* Registers */
+/* IR Control */
+#define SUNXI_IR_CTL_REG      0x00
+/* Global Enable */
+#define REG_CTL_GEN			BIT(0)
+/* RX block enable */
+#define REG_CTL_RXEN			BIT(1)
+/* CIR mode */
+#define REG_CTL_MD			(BIT(4) | BIT(5))
+
+/* Rx Config */
+#define SUNXI_IR_RXCTL_REG    0x10
+/* Pulse Polarity Invert flag */
+#define REG_RXCTL_RPPI			BIT(2)
+
+/* Rx Data */
+#define SUNXI_IR_RXFIFO_REG   0x20
+
+/* Rx Interrupt Enable */
+#define SUNXI_IR_RXINT_REG    0x2C
+/* Rx FIFO Overflow */
+#define REG_RXINT_ROI_EN		BIT(0)
+/* Rx Packet End */
+#define REG_RXINT_RPEI_EN		BIT(1)
+/* Rx FIFO Data Available */
+#define REG_RXINT_RAI_EN		BIT(4)
+
+/* Rx FIFO available byte level */
+#define REG_RXINT_RAL(val)    (((val) << 8) & (GENMASK(11, 8)))
+
+/* Rx Interrupt Status */
+#define SUNXI_IR_RXSTA_REG    0x30
+/* RX FIFO Get Available Counter */
+#define REG_RXSTA_GET_AC(val) (((val) >> 8) & (GENMASK(5, 0)))
+/* Clear all interrupt status value */
+#define REG_RXSTA_CLEARALL    0xff
+
+/* IR Sample Config */
+#define SUNXI_IR_CIR_REG      0x34
+/* CIR_REG register noise threshold */
+#define REG_CIR_NTHR(val)    (((val) << 2) & (GENMASK(7, 2)))
+/* CIR_REG register idle threshold */
+#define REG_CIR_ITHR(val)    (((val) << 8) & (GENMASK(15, 8)))
+
+/* Hardware supported fifo size */
+#define SUNXI_IR_FIFO_SIZE    16
+/* How many messages in FIFO trigger IRQ */
+#define TRIGGER_LEVEL         8
+/* Required frequency for IR0 or IR1 clock in CIR mode */
+#define SUNXI_IR_BASE_CLK     8000000
+/* Frequency after IR internal divider  */
+#define SUNXI_IR_CLK          (SUNXI_IR_BASE_CLK / 64)
+/* Sample period in ns */
+#define SUNXI_IR_SAMPLE       (1000000000ul / SUNXI_IR_CLK)
+/* Noise threshold in samples  */
+#define SUNXI_IR_RXNOISE      1
+/* Idle Threshold in samples */
+#define SUNXI_IR_RXIDLE       20
+/* Time after which device stops sending data in ms */
+#define SUNXI_IR_TIMEOUT      120
+
+struct sunxi_ir {
+	spinlock_t      ir_lock;
+	struct rc_dev   *rc;
+	void __iomem    *base;
+	int             irq;
+	struct clk      *clk;
+	struct clk      *apb_clk;
+	const char      *map_name;
+};
+
+static irqreturn_t sunxi_ir_irq(int irqno, void *dev_id)
+{
+	unsigned long status;
+	unsigned char dt;
+	unsigned int cnt, rc;
+	struct sunxi_ir *ir = dev_id;
+	DEFINE_IR_RAW_EVENT(rawir);
+
+	spin_lock(&ir->ir_lock);
+
+	status = readl(ir->base + SUNXI_IR_RXSTA_REG);
+
+	/* clean all pending statuses */
+	writel(status | REG_RXSTA_CLEARALL, ir->base + SUNXI_IR_RXSTA_REG);
+
+	if (status & REG_RXINT_RAI_EN) {
+		/* How many messages in fifo */
+		rc  = REG_RXSTA_GET_AC(status);
+		/* Sanity check */
+		rc = rc > SUNXI_IR_FIFO_SIZE ? SUNXI_IR_FIFO_SIZE : rc;
+		/* If we have data */
+		for (cnt = 0; cnt < rc; cnt++) {
+			/* for each bit in fifo */
+			dt = readb(ir->base + SUNXI_IR_RXFIFO_REG);
+			rawir.pulse = (dt & 0x80) != 0;
+			rawir.duration = ((dt & 0x7f) + 1) * SUNXI_IR_SAMPLE;
+			ir_raw_event_store_with_filter(ir->rc, &rawir);
+		}
+	}
+
+	if (status & REG_RXINT_ROI_EN) {
+		ir_raw_event_reset(ir->rc);
+	} else if (status & REG_RXINT_RPEI_EN) {
+		ir_raw_event_set_idle(ir->rc, true);
+		ir_raw_event_handle(ir->rc);
+	}
+
+	spin_unlock(&ir->ir_lock);
+
+	return IRQ_HANDLED;
+}
+
+static int sunxi_ir_probe(struct platform_device *pdev)
+{
+	int ret = 0;
+	unsigned long tmp = 0;
+
+	struct device *dev = &pdev->dev;
+	struct device_node *dn = dev->of_node;
+	struct resource *res;
+	struct sunxi_ir *ir;
+
+	ir = devm_kzalloc(dev, sizeof(struct sunxi_ir), GFP_KERNEL);
+	if (!ir)
+		return -ENOMEM;
+
+	/* Clock */
+	ir->apb_clk = devm_clk_get(dev, "apb");
+	if (IS_ERR(ir->apb_clk)) {
+		dev_err(dev, "failed to get a apb clock.\n");
+		return PTR_ERR(ir->apb_clk);
+	}
+	ir->clk = devm_clk_get(dev, "ir");
+	if (IS_ERR(ir->clk)) {
+		dev_err(dev, "failed to get a ir clock.\n");
+		return PTR_ERR(ir->clk);
+	}
+
+	ret = clk_set_rate(ir->clk, SUNXI_IR_BASE_CLK);
+	if (ret) {
+		dev_err(dev, "set ir base clock failed!\n");
+		return ret;
+	}
+
+	if (clk_prepare_enable(ir->apb_clk)) {
+		dev_err(dev, "try to enable apb_ir_clk failed\n");
+		return -EINVAL;
+	}
+
+	if (clk_prepare_enable(ir->clk)) {
+		dev_err(dev, "try to enable ir_clk failed\n");
+		ret = -EINVAL;
+		goto exit_clkdisable_apb_clk;
+	}
+
+	/* IO */
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	ir->base = devm_ioremap_resource(dev, res);
+	if (IS_ERR(ir->base)) {
+		dev_err(dev, "failed to map registers\n");
+		ret = PTR_ERR(ir->base);
+		goto exit_clkdisable_clk;
+	}
+
+	ir->rc = rc_allocate_device();
+	if (!ir->rc) {
+		dev_err(dev, "failed to allocate device\n");
+		ret = -ENOMEM;
+		goto exit_clkdisable_clk;
+	}
+
+	ir->rc->priv = ir;
+	ir->rc->input_name = SUNXI_IR_DEV;
+	ir->rc->input_phys = "sunxi-ir/input0";
+	ir->rc->input_id.bustype = BUS_HOST;
+	ir->rc->input_id.vendor = 0x0001;
+	ir->rc->input_id.product = 0x0001;
+	ir->rc->input_id.version = 0x0100;
+	ir->map_name = of_get_property(dn, "linux,rc-map-name", NULL);
+	ir->rc->map_name = ir->map_name ?: RC_MAP_EMPTY;
+	ir->rc->dev.parent = dev;
+	ir->rc->driver_type = RC_DRIVER_IR_RAW;
+	rc_set_allowed_protocols(ir->rc, RC_BIT_ALL);
+	ir->rc->rx_resolution = SUNXI_IR_SAMPLE;
+	ir->rc->timeout = MS_TO_NS(SUNXI_IR_TIMEOUT);
+	ir->rc->driver_name = SUNXI_IR_DEV;
+
+	ret = rc_register_device(ir->rc);
+	if (ret) {
+		dev_err(dev, "failed to register rc device\n");
+		goto exit_free_dev;
+	}
+
+	platform_set_drvdata(pdev, ir);
+
+	/* IRQ */
+	ir->irq = platform_get_irq(pdev, 0);
+	if (ir->irq < 0) {
+		dev_err(dev, "no irq resource\n");
+		ret = ir->irq;
+		goto exit_free_dev;
+	}
+
+	ret = devm_request_irq(dev, ir->irq, sunxi_ir_irq, 0, SUNXI_IR_DEV, ir);
+	if (ret) {
+		dev_err(dev, "failed request irq\n");
+		goto exit_free_dev;
+	}
+
+	/* Enable CIR Mode */
+	writel(REG_CTL_MD, ir->base+SUNXI_IR_CTL_REG);
+
+	/* Set noise threshold and idle threshold */
+	writel(REG_CIR_NTHR(SUNXI_IR_RXNOISE)|REG_CIR_ITHR(SUNXI_IR_RXIDLE),
+	       ir->base + SUNXI_IR_CIR_REG);
+
+	/* Invert Input Signal */
+	writel(REG_RXCTL_RPPI, ir->base + SUNXI_IR_RXCTL_REG);
+
+	/* Clear All Rx Interrupt Status */
+	writel(REG_RXSTA_CLEARALL, ir->base + SUNXI_IR_RXSTA_REG);
+
+	/*
+	 * Enable IRQ on overflow, packet end, FIFO available with trigger
+	 * level
+	 */
+	writel(REG_RXINT_ROI_EN | REG_RXINT_RPEI_EN |
+	       REG_RXINT_RAI_EN | REG_RXINT_RAL(TRIGGER_LEVEL - 1),
+	       ir->base + SUNXI_IR_RXINT_REG);
+
+	/* Enable IR Module */
+	tmp = readl(ir->base + SUNXI_IR_CTL_REG);
+	writel(tmp | REG_CTL_GEN | REG_CTL_RXEN, ir->base + SUNXI_IR_CTL_REG);
+
+	dev_info(dev, "initialized sunXi IR driver\n");
+	return 0;
+
+exit_free_dev:
+	rc_free_device(ir->rc);
+exit_clkdisable_clk:
+	clk_disable_unprepare(ir->clk);
+exit_clkdisable_apb_clk:
+	clk_disable_unprepare(ir->apb_clk);
+
+	return ret;
+}
+
+static int sunxi_ir_remove(struct platform_device *pdev)
+{
+	unsigned long flags;
+	struct sunxi_ir *ir = platform_get_drvdata(pdev);
+
+	clk_disable_unprepare(ir->clk);
+	clk_disable_unprepare(ir->apb_clk);
+
+	spin_lock_irqsave(&ir->ir_lock, flags);
+	/* disable IR IRQ */
+	writel(0, ir->base + SUNXI_IR_RXINT_REG);
+	/* clear All Rx Interrupt Status */
+	writel(REG_RXSTA_CLEARALL, ir->base + SUNXI_IR_RXSTA_REG);
+	/* disable IR */
+	writel(0, ir->base + SUNXI_IR_CTL_REG);
+	spin_unlock_irqrestore(&ir->ir_lock, flags);
+
+	rc_unregister_device(ir->rc);
+	return 0;
+}
+
+static const struct of_device_id sunxi_ir_match[] = {
+	{ .compatible = "allwinner,sun7i-a20-ir", },
+	{},
+};
+
+static struct platform_driver sunxi_ir_driver = {
+	.probe          = sunxi_ir_probe,
+	.remove         = sunxi_ir_remove,
+	.driver = {
+		.name = SUNXI_IR_DEV,
+		.owner = THIS_MODULE,
+		.of_match_table = sunxi_ir_match,
+	},
+};
+
+module_platform_driver(sunxi_ir_driver);
+
+MODULE_DESCRIPTION("Allwinner sunXi IR controller driver");
+MODULE_AUTHOR("Alexsey Shestacov <wingrime@linux-sunxi.org>");
+MODULE_LICENSE("GPL");
-- 
1.7.1

[PATCH v10 2/5] [media] rc: add sunxi-ir driver

[Alexander Bersenev]

This patch adds driver for sunxi IR controller.
It is based on Alexsey Shestacov's work based on the original driver
supplied by Allwinner.

Signed-off-by: Alexander Bersenev <bay-d8LqKIyZzER6k2ZkT/Rh8A@public.gmane.org>
Signed-off-by: Alexsey Shestacov <wingrime-3kdeTeqwOZ9EV1b7eY7vFQ@public.gmane.org>
---
 drivers/media/rc/Kconfig     |   10 ++
 drivers/media/rc/Makefile    |    1 +
 drivers/media/rc/sunxi-cir.c |  318 ++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 329 insertions(+), 0 deletions(-)
 create mode 100644 drivers/media/rc/sunxi-cir.c

diff --git a/drivers/media/rc/Kconfig b/drivers/media/rc/Kconfig
index 8fbd377..9427fad 100644
--- a/drivers/media/rc/Kconfig
+++ b/drivers/media/rc/Kconfig
@@ -343,4 +343,14 @@ config RC_ST
 
 	 If you're not sure, select N here.
 
+config IR_SUNXI
+    tristate "SUNXI IR remote control"
+    depends on RC_CORE
+    depends on ARCH_SUNXI
+    ---help---
+      Say Y if you want to use sunXi internal IR Controller
+
+      To compile this driver as a module, choose M here: the module will
+      be called sunxi-ir.
+
 endif #RC_DEVICES
diff --git a/drivers/media/rc/Makefile b/drivers/media/rc/Makefile
index f8b54ff..9ee9ee7 100644
--- a/drivers/media/rc/Makefile
+++ b/drivers/media/rc/Makefile
@@ -32,4 +32,5 @@ obj-$(CONFIG_IR_GPIO_CIR) += gpio-ir-recv.o
 obj-$(CONFIG_IR_IGUANA) += iguanair.o
 obj-$(CONFIG_IR_TTUSBIR) += ttusbir.o
 obj-$(CONFIG_RC_ST) += st_rc.o
+obj-$(CONFIG_IR_SUNXI) += sunxi-cir.o
 obj-$(CONFIG_IR_IMG) += img-ir/
diff --git a/drivers/media/rc/sunxi-cir.c b/drivers/media/rc/sunxi-cir.c
new file mode 100644
index 0000000..5971b69
--- /dev/null
+++ b/drivers/media/rc/sunxi-cir.c
@@ -0,0 +1,318 @@
+/*
+ * Driver for Allwinner sunXi IR controller
+ *
+ * Copyright (C) 2014 Alexsey Shestacov <wingrime-3kdeTeqwOZ9EV1b7eY7vFQ@public.gmane.org>
+ * Copyright (C) 2014 Alexander Bersenev <bay-d8LqKIyZzER6k2ZkT/Rh8A@public.gmane.org>
+ *
+ * Based on sun5i-ir.c:
+ * Copyright (C) 2007-2012 Daniel Wang
+ * Allwinner Technology Co., Ltd. <www.allwinnertech.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/clk.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/of_platform.h>
+#include <media/rc-core.h>
+
+#define SUNXI_IR_DEV "sunxi-ir"
+
+/* Registers */
+/* IR Control */
+#define SUNXI_IR_CTL_REG      0x00
+/* Global Enable */
+#define REG_CTL_GEN			BIT(0)
+/* RX block enable */
+#define REG_CTL_RXEN			BIT(1)
+/* CIR mode */
+#define REG_CTL_MD			(BIT(4) | BIT(5))
+
+/* Rx Config */
+#define SUNXI_IR_RXCTL_REG    0x10
+/* Pulse Polarity Invert flag */
+#define REG_RXCTL_RPPI			BIT(2)
+
+/* Rx Data */
+#define SUNXI_IR_RXFIFO_REG   0x20
+
+/* Rx Interrupt Enable */
+#define SUNXI_IR_RXINT_REG    0x2C
+/* Rx FIFO Overflow */
+#define REG_RXINT_ROI_EN		BIT(0)
+/* Rx Packet End */
+#define REG_RXINT_RPEI_EN		BIT(1)
+/* Rx FIFO Data Available */
+#define REG_RXINT_RAI_EN		BIT(4)
+
+/* Rx FIFO available byte level */
+#define REG_RXINT_RAL(val)    (((val) << 8) & (GENMASK(11, 8)))
+
+/* Rx Interrupt Status */
+#define SUNXI_IR_RXSTA_REG    0x30
+/* RX FIFO Get Available Counter */
+#define REG_RXSTA_GET_AC(val) (((val) >> 8) & (GENMASK(5, 0)))
+/* Clear all interrupt status value */
+#define REG_RXSTA_CLEARALL    0xff
+
+/* IR Sample Config */
+#define SUNXI_IR_CIR_REG      0x34
+/* CIR_REG register noise threshold */
+#define REG_CIR_NTHR(val)    (((val) << 2) & (GENMASK(7, 2)))
+/* CIR_REG register idle threshold */
+#define REG_CIR_ITHR(val)    (((val) << 8) & (GENMASK(15, 8)))
+
+/* Hardware supported fifo size */
+#define SUNXI_IR_FIFO_SIZE    16
+/* How many messages in FIFO trigger IRQ */
+#define TRIGGER_LEVEL         8
+/* Required frequency for IR0 or IR1 clock in CIR mode */
+#define SUNXI_IR_BASE_CLK     8000000
+/* Frequency after IR internal divider  */
+#define SUNXI_IR_CLK          (SUNXI_IR_BASE_CLK / 64)
+/* Sample period in ns */
+#define SUNXI_IR_SAMPLE       (1000000000ul / SUNXI_IR_CLK)
+/* Noise threshold in samples  */
+#define SUNXI_IR_RXNOISE      1
+/* Idle Threshold in samples */
+#define SUNXI_IR_RXIDLE       20
+/* Time after which device stops sending data in ms */
+#define SUNXI_IR_TIMEOUT      120
+
+struct sunxi_ir {
+	spinlock_t      ir_lock;
+	struct rc_dev   *rc;
+	void __iomem    *base;
+	int             irq;
+	struct clk      *clk;
+	struct clk      *apb_clk;
+	const char      *map_name;
+};
+
+static irqreturn_t sunxi_ir_irq(int irqno, void *dev_id)
+{
+	unsigned long status;
+	unsigned char dt;
+	unsigned int cnt, rc;
+	struct sunxi_ir *ir = dev_id;
+	DEFINE_IR_RAW_EVENT(rawir);
+
+	spin_lock(&ir->ir_lock);
+
+	status = readl(ir->base + SUNXI_IR_RXSTA_REG);
+
+	/* clean all pending statuses */
+	writel(status | REG_RXSTA_CLEARALL, ir->base + SUNXI_IR_RXSTA_REG);
+
+	if (status & REG_RXINT_RAI_EN) {
+		/* How many messages in fifo */
+		rc  = REG_RXSTA_GET_AC(status);
+		/* Sanity check */
+		rc = rc > SUNXI_IR_FIFO_SIZE ? SUNXI_IR_FIFO_SIZE : rc;
+		/* If we have data */
+		for (cnt = 0; cnt < rc; cnt++) {
+			/* for each bit in fifo */
+			dt = readb(ir->base + SUNXI_IR_RXFIFO_REG);
+			rawir.pulse = (dt & 0x80) != 0;
+			rawir.duration = ((dt & 0x7f) + 1) * SUNXI_IR_SAMPLE;
+			ir_raw_event_store_with_filter(ir->rc, &rawir);
+		}
+	}
+
+	if (status & REG_RXINT_ROI_EN) {
+		ir_raw_event_reset(ir->rc);
+	} else if (status & REG_RXINT_RPEI_EN) {
+		ir_raw_event_set_idle(ir->rc, true);
+		ir_raw_event_handle(ir->rc);
+	}
+
+	spin_unlock(&ir->ir_lock);
+
+	return IRQ_HANDLED;
+}
+
+static int sunxi_ir_probe(struct platform_device *pdev)
+{
+	int ret = 0;
+	unsigned long tmp = 0;
+
+	struct device *dev = &pdev->dev;
+	struct device_node *dn = dev->of_node;
+	struct resource *res;
+	struct sunxi_ir *ir;
+
+	ir = devm_kzalloc(dev, sizeof(struct sunxi_ir), GFP_KERNEL);
+	if (!ir)
+		return -ENOMEM;
+
+	/* Clock */
+	ir->apb_clk = devm_clk_get(dev, "apb");
+	if (IS_ERR(ir->apb_clk)) {
+		dev_err(dev, "failed to get a apb clock.\n");
+		return PTR_ERR(ir->apb_clk);
+	}
+	ir->clk = devm_clk_get(dev, "ir");
+	if (IS_ERR(ir->clk)) {
+		dev_err(dev, "failed to get a ir clock.\n");
+		return PTR_ERR(ir->clk);
+	}
+
+	ret = clk_set_rate(ir->clk, SUNXI_IR_BASE_CLK);
+	if (ret) {
+		dev_err(dev, "set ir base clock failed!\n");
+		return ret;
+	}
+
+	if (clk_prepare_enable(ir->apb_clk)) {
+		dev_err(dev, "try to enable apb_ir_clk failed\n");
+		return -EINVAL;
+	}
+
+	if (clk_prepare_enable(ir->clk)) {
+		dev_err(dev, "try to enable ir_clk failed\n");
+		ret = -EINVAL;
+		goto exit_clkdisable_apb_clk;
+	}
+
+	/* IO */
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	ir->base = devm_ioremap_resource(dev, res);
+	if (IS_ERR(ir->base)) {
+		dev_err(dev, "failed to map registers\n");
+		ret = PTR_ERR(ir->base);
+		goto exit_clkdisable_clk;
+	}
+
+	ir->rc = rc_allocate_device();
+	if (!ir->rc) {
+		dev_err(dev, "failed to allocate device\n");
+		ret = -ENOMEM;
+		goto exit_clkdisable_clk;
+	}
+
+	ir->rc->priv = ir;
+	ir->rc->input_name = SUNXI_IR_DEV;
+	ir->rc->input_phys = "sunxi-ir/input0";
+	ir->rc->input_id.bustype = BUS_HOST;
+	ir->rc->input_id.vendor = 0x0001;
+	ir->rc->input_id.product = 0x0001;
+	ir->rc->input_id.version = 0x0100;
+	ir->map_name = of_get_property(dn, "linux,rc-map-name", NULL);
+	ir->rc->map_name = ir->map_name ?: RC_MAP_EMPTY;
+	ir->rc->dev.parent = dev;
+	ir->rc->driver_type = RC_DRIVER_IR_RAW;
+	rc_set_allowed_protocols(ir->rc, RC_BIT_ALL);
+	ir->rc->rx_resolution = SUNXI_IR_SAMPLE;
+	ir->rc->timeout = MS_TO_NS(SUNXI_IR_TIMEOUT);
+	ir->rc->driver_name = SUNXI_IR_DEV;
+
+	ret = rc_register_device(ir->rc);
+	if (ret) {
+		dev_err(dev, "failed to register rc device\n");
+		goto exit_free_dev;
+	}
+
+	platform_set_drvdata(pdev, ir);
+
+	/* IRQ */
+	ir->irq = platform_get_irq(pdev, 0);
+	if (ir->irq < 0) {
+		dev_err(dev, "no irq resource\n");
+		ret = ir->irq;
+		goto exit_free_dev;
+	}
+
+	ret = devm_request_irq(dev, ir->irq, sunxi_ir_irq, 0, SUNXI_IR_DEV, ir);
+	if (ret) {
+		dev_err(dev, "failed request irq\n");
+		goto exit_free_dev;
+	}
+
+	/* Enable CIR Mode */
+	writel(REG_CTL_MD, ir->base+SUNXI_IR_CTL_REG);
+
+	/* Set noise threshold and idle threshold */
+	writel(REG_CIR_NTHR(SUNXI_IR_RXNOISE)|REG_CIR_ITHR(SUNXI_IR_RXIDLE),
+	       ir->base + SUNXI_IR_CIR_REG);
+
+	/* Invert Input Signal */
+	writel(REG_RXCTL_RPPI, ir->base + SUNXI_IR_RXCTL_REG);
+
+	/* Clear All Rx Interrupt Status */
+	writel(REG_RXSTA_CLEARALL, ir->base + SUNXI_IR_RXSTA_REG);
+
+	/*
+	 * Enable IRQ on overflow, packet end, FIFO available with trigger
+	 * level
+	 */
+	writel(REG_RXINT_ROI_EN | REG_RXINT_RPEI_EN |
+	       REG_RXINT_RAI_EN | REG_RXINT_RAL(TRIGGER_LEVEL - 1),
+	       ir->base + SUNXI_IR_RXINT_REG);
+
+	/* Enable IR Module */
+	tmp = readl(ir->base + SUNXI_IR_CTL_REG);
+	writel(tmp | REG_CTL_GEN | REG_CTL_RXEN, ir->base + SUNXI_IR_CTL_REG);
+
+	dev_info(dev, "initialized sunXi IR driver\n");
+	return 0;
+
+exit_free_dev:
+	rc_free_device(ir->rc);
+exit_clkdisable_clk:
+	clk_disable_unprepare(ir->clk);
+exit_clkdisable_apb_clk:
+	clk_disable_unprepare(ir->apb_clk);
+
+	return ret;
+}
+
+static int sunxi_ir_remove(struct platform_device *pdev)
+{
+	unsigned long flags;
+	struct sunxi_ir *ir = platform_get_drvdata(pdev);
+
+	clk_disable_unprepare(ir->clk);
+	clk_disable_unprepare(ir->apb_clk);
+
+	spin_lock_irqsave(&ir->ir_lock, flags);
+	/* disable IR IRQ */
+	writel(0, ir->base + SUNXI_IR_RXINT_REG);
+	/* clear All Rx Interrupt Status */
+	writel(REG_RXSTA_CLEARALL, ir->base + SUNXI_IR_RXSTA_REG);
+	/* disable IR */
+	writel(0, ir->base + SUNXI_IR_CTL_REG);
+	spin_unlock_irqrestore(&ir->ir_lock, flags);
+
+	rc_unregister_device(ir->rc);
+	return 0;
+}
+
+static const struct of_device_id sunxi_ir_match[] = {
+	{ .compatible = "allwinner,sun7i-a20-ir", },
+	{},
+};
+
+static struct platform_driver sunxi_ir_driver = {
+	.probe          = sunxi_ir_probe,
+	.remove         = sunxi_ir_remove,
+	.driver = {
+		.name = SUNXI_IR_DEV,
+		.owner = THIS_MODULE,
+		.of_match_table = sunxi_ir_match,
+	},
+};
+
+module_platform_driver(sunxi_ir_driver);
+
+MODULE_DESCRIPTION("Allwinner sunXi IR controller driver");
+MODULE_AUTHOR("Alexsey Shestacov <wingrime-3kdeTeqwOZ9EV1b7eY7vFQ@public.gmane.org>");
+MODULE_LICENSE("GPL");
-- 
1.7.1

[PATCH v10 2/5] [media] rc: add sunxi-ir driver

[Alexander Bersenev]

This patch adds driver for sunxi IR controller.
It is based on Alexsey Shestacov's work based on the original driver
supplied by Allwinner.

Signed-off-by: Alexander Bersenev <bay@hackerdom.ru>
Signed-off-by: Alexsey Shestacov <wingrime@linux-sunxi.org>
---
 drivers/media/rc/Kconfig     |   10 ++
 drivers/media/rc/Makefile    |    1 +
 drivers/media/rc/sunxi-cir.c |  318 ++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 329 insertions(+), 0 deletions(-)
 create mode 100644 drivers/media/rc/sunxi-cir.c

diff --git a/drivers/media/rc/Kconfig b/drivers/media/rc/Kconfig
index 8fbd377..9427fad 100644
--- a/drivers/media/rc/Kconfig
+++ b/drivers/media/rc/Kconfig
@@ -343,4 +343,14 @@ config RC_ST
 
 	 If you're not sure, select N here.
 
+config IR_SUNXI
+    tristate "SUNXI IR remote control"
+    depends on RC_CORE
+    depends on ARCH_SUNXI
+    ---help---
+      Say Y if you want to use sunXi internal IR Controller
+
+      To compile this driver as a module, choose M here: the module will
+      be called sunxi-ir.
+
 endif #RC_DEVICES
diff --git a/drivers/media/rc/Makefile b/drivers/media/rc/Makefile
index f8b54ff..9ee9ee7 100644
--- a/drivers/media/rc/Makefile
+++ b/drivers/media/rc/Makefile
@@ -32,4 +32,5 @@ obj-$(CONFIG_IR_GPIO_CIR) += gpio-ir-recv.o
 obj-$(CONFIG_IR_IGUANA) += iguanair.o
 obj-$(CONFIG_IR_TTUSBIR) += ttusbir.o
 obj-$(CONFIG_RC_ST) += st_rc.o
+obj-$(CONFIG_IR_SUNXI) += sunxi-cir.o
 obj-$(CONFIG_IR_IMG) += img-ir/
diff --git a/drivers/media/rc/sunxi-cir.c b/drivers/media/rc/sunxi-cir.c
new file mode 100644
index 0000000..5971b69
--- /dev/null
+++ b/drivers/media/rc/sunxi-cir.c
@@ -0,0 +1,318 @@
+/*
+ * Driver for Allwinner sunXi IR controller
+ *
+ * Copyright (C) 2014 Alexsey Shestacov <wingrime@linux-sunxi.org>
+ * Copyright (C) 2014 Alexander Bersenev <bay@hackerdom.ru>
+ *
+ * Based on sun5i-ir.c:
+ * Copyright (C) 2007-2012 Daniel Wang
+ * Allwinner Technology Co., Ltd. <www.allwinnertech.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/clk.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/of_platform.h>
+#include <media/rc-core.h>
+
+#define SUNXI_IR_DEV "sunxi-ir"
+
+/* Registers */
+/* IR Control */
+#define SUNXI_IR_CTL_REG      0x00
+/* Global Enable */
+#define REG_CTL_GEN			BIT(0)
+/* RX block enable */
+#define REG_CTL_RXEN			BIT(1)
+/* CIR mode */
+#define REG_CTL_MD			(BIT(4) | BIT(5))
+
+/* Rx Config */
+#define SUNXI_IR_RXCTL_REG    0x10
+/* Pulse Polarity Invert flag */
+#define REG_RXCTL_RPPI			BIT(2)
+
+/* Rx Data */
+#define SUNXI_IR_RXFIFO_REG   0x20
+
+/* Rx Interrupt Enable */
+#define SUNXI_IR_RXINT_REG    0x2C
+/* Rx FIFO Overflow */
+#define REG_RXINT_ROI_EN		BIT(0)
+/* Rx Packet End */
+#define REG_RXINT_RPEI_EN		BIT(1)
+/* Rx FIFO Data Available */
+#define REG_RXINT_RAI_EN		BIT(4)
+
+/* Rx FIFO available byte level */
+#define REG_RXINT_RAL(val)    (((val) << 8) & (GENMASK(11, 8)))
+
+/* Rx Interrupt Status */
+#define SUNXI_IR_RXSTA_REG    0x30
+/* RX FIFO Get Available Counter */
+#define REG_RXSTA_GET_AC(val) (((val) >> 8) & (GENMASK(5, 0)))
+/* Clear all interrupt status value */
+#define REG_RXSTA_CLEARALL    0xff
+
+/* IR Sample Config */
+#define SUNXI_IR_CIR_REG      0x34
+/* CIR_REG register noise threshold */
+#define REG_CIR_NTHR(val)    (((val) << 2) & (GENMASK(7, 2)))
+/* CIR_REG register idle threshold */
+#define REG_CIR_ITHR(val)    (((val) << 8) & (GENMASK(15, 8)))
+
+/* Hardware supported fifo size */
+#define SUNXI_IR_FIFO_SIZE    16
+/* How many messages in FIFO trigger IRQ */
+#define TRIGGER_LEVEL         8
+/* Required frequency for IR0 or IR1 clock in CIR mode */
+#define SUNXI_IR_BASE_CLK     8000000
+/* Frequency after IR internal divider  */
+#define SUNXI_IR_CLK          (SUNXI_IR_BASE_CLK / 64)
+/* Sample period in ns */
+#define SUNXI_IR_SAMPLE       (1000000000ul / SUNXI_IR_CLK)
+/* Noise threshold in samples  */
+#define SUNXI_IR_RXNOISE      1
+/* Idle Threshold in samples */
+#define SUNXI_IR_RXIDLE       20
+/* Time after which device stops sending data in ms */
+#define SUNXI_IR_TIMEOUT      120
+
+struct sunxi_ir {
+	spinlock_t      ir_lock;
+	struct rc_dev   *rc;
+	void __iomem    *base;
+	int             irq;
+	struct clk      *clk;
+	struct clk      *apb_clk;
+	const char      *map_name;
+};
+
+static irqreturn_t sunxi_ir_irq(int irqno, void *dev_id)
+{
+	unsigned long status;
+	unsigned char dt;
+	unsigned int cnt, rc;
+	struct sunxi_ir *ir = dev_id;
+	DEFINE_IR_RAW_EVENT(rawir);
+
+	spin_lock(&ir->ir_lock);
+
+	status = readl(ir->base + SUNXI_IR_RXSTA_REG);
+
+	/* clean all pending statuses */
+	writel(status | REG_RXSTA_CLEARALL, ir->base + SUNXI_IR_RXSTA_REG);
+
+	if (status & REG_RXINT_RAI_EN) {
+		/* How many messages in fifo */
+		rc  = REG_RXSTA_GET_AC(status);
+		/* Sanity check */
+		rc = rc > SUNXI_IR_FIFO_SIZE ? SUNXI_IR_FIFO_SIZE : rc;
+		/* If we have data */
+		for (cnt = 0; cnt < rc; cnt++) {
+			/* for each bit in fifo */
+			dt = readb(ir->base + SUNXI_IR_RXFIFO_REG);
+			rawir.pulse = (dt & 0x80) != 0;
+			rawir.duration = ((dt & 0x7f) + 1) * SUNXI_IR_SAMPLE;
+			ir_raw_event_store_with_filter(ir->rc, &rawir);
+		}
+	}
+
+	if (status & REG_RXINT_ROI_EN) {
+		ir_raw_event_reset(ir->rc);
+	} else if (status & REG_RXINT_RPEI_EN) {
+		ir_raw_event_set_idle(ir->rc, true);
+		ir_raw_event_handle(ir->rc);
+	}
+
+	spin_unlock(&ir->ir_lock);
+
+	return IRQ_HANDLED;
+}
+
+static int sunxi_ir_probe(struct platform_device *pdev)
+{
+	int ret = 0;
+	unsigned long tmp = 0;
+
+	struct device *dev = &pdev->dev;
+	struct device_node *dn = dev->of_node;
+	struct resource *res;
+	struct sunxi_ir *ir;
+
+	ir = devm_kzalloc(dev, sizeof(struct sunxi_ir), GFP_KERNEL);
+	if (!ir)
+		return -ENOMEM;
+
+	/* Clock */
+	ir->apb_clk = devm_clk_get(dev, "apb");
+	if (IS_ERR(ir->apb_clk)) {
+		dev_err(dev, "failed to get a apb clock.\n");
+		return PTR_ERR(ir->apb_clk);
+	}
+	ir->clk = devm_clk_get(dev, "ir");
+	if (IS_ERR(ir->clk)) {
+		dev_err(dev, "failed to get a ir clock.\n");
+		return PTR_ERR(ir->clk);
+	}
+
+	ret = clk_set_rate(ir->clk, SUNXI_IR_BASE_CLK);
+	if (ret) {
+		dev_err(dev, "set ir base clock failed!\n");
+		return ret;
+	}
+
+	if (clk_prepare_enable(ir->apb_clk)) {
+		dev_err(dev, "try to enable apb_ir_clk failed\n");
+		return -EINVAL;
+	}
+
+	if (clk_prepare_enable(ir->clk)) {
+		dev_err(dev, "try to enable ir_clk failed\n");
+		ret = -EINVAL;
+		goto exit_clkdisable_apb_clk;
+	}
+
+	/* IO */
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	ir->base = devm_ioremap_resource(dev, res);
+	if (IS_ERR(ir->base)) {
+		dev_err(dev, "failed to map registers\n");
+		ret = PTR_ERR(ir->base);
+		goto exit_clkdisable_clk;
+	}
+
+	ir->rc = rc_allocate_device();
+	if (!ir->rc) {
+		dev_err(dev, "failed to allocate device\n");
+		ret = -ENOMEM;
+		goto exit_clkdisable_clk;
+	}
+
+	ir->rc->priv = ir;
+	ir->rc->input_name = SUNXI_IR_DEV;
+	ir->rc->input_phys = "sunxi-ir/input0";
+	ir->rc->input_id.bustype = BUS_HOST;
+	ir->rc->input_id.vendor = 0x0001;
+	ir->rc->input_id.product = 0x0001;
+	ir->rc->input_id.version = 0x0100;
+	ir->map_name = of_get_property(dn, "linux,rc-map-name", NULL);
+	ir->rc->map_name = ir->map_name ?: RC_MAP_EMPTY;
+	ir->rc->dev.parent = dev;
+	ir->rc->driver_type = RC_DRIVER_IR_RAW;
+	rc_set_allowed_protocols(ir->rc, RC_BIT_ALL);
+	ir->rc->rx_resolution = SUNXI_IR_SAMPLE;
+	ir->rc->timeout = MS_TO_NS(SUNXI_IR_TIMEOUT);
+	ir->rc->driver_name = SUNXI_IR_DEV;
+
+	ret = rc_register_device(ir->rc);
+	if (ret) {
+		dev_err(dev, "failed to register rc device\n");
+		goto exit_free_dev;
+	}
+
+	platform_set_drvdata(pdev, ir);
+
+	/* IRQ */
+	ir->irq = platform_get_irq(pdev, 0);
+	if (ir->irq < 0) {
+		dev_err(dev, "no irq resource\n");
+		ret = ir->irq;
+		goto exit_free_dev;
+	}
+
+	ret = devm_request_irq(dev, ir->irq, sunxi_ir_irq, 0, SUNXI_IR_DEV, ir);
+	if (ret) {
+		dev_err(dev, "failed request irq\n");
+		goto exit_free_dev;
+	}
+
+	/* Enable CIR Mode */
+	writel(REG_CTL_MD, ir->base+SUNXI_IR_CTL_REG);
+
+	/* Set noise threshold and idle threshold */
+	writel(REG_CIR_NTHR(SUNXI_IR_RXNOISE)|REG_CIR_ITHR(SUNXI_IR_RXIDLE),
+	       ir->base + SUNXI_IR_CIR_REG);
+
+	/* Invert Input Signal */
+	writel(REG_RXCTL_RPPI, ir->base + SUNXI_IR_RXCTL_REG);
+
+	/* Clear All Rx Interrupt Status */
+	writel(REG_RXSTA_CLEARALL, ir->base + SUNXI_IR_RXSTA_REG);
+
+	/*
+	 * Enable IRQ on overflow, packet end, FIFO available with trigger
+	 * level
+	 */
+	writel(REG_RXINT_ROI_EN | REG_RXINT_RPEI_EN |
+	       REG_RXINT_RAI_EN | REG_RXINT_RAL(TRIGGER_LEVEL - 1),
+	       ir->base + SUNXI_IR_RXINT_REG);
+
+	/* Enable IR Module */
+	tmp = readl(ir->base + SUNXI_IR_CTL_REG);
+	writel(tmp | REG_CTL_GEN | REG_CTL_RXEN, ir->base + SUNXI_IR_CTL_REG);
+
+	dev_info(dev, "initialized sunXi IR driver\n");
+	return 0;
+
+exit_free_dev:
+	rc_free_device(ir->rc);
+exit_clkdisable_clk:
+	clk_disable_unprepare(ir->clk);
+exit_clkdisable_apb_clk:
+	clk_disable_unprepare(ir->apb_clk);
+
+	return ret;
+}
+
+static int sunxi_ir_remove(struct platform_device *pdev)
+{
+	unsigned long flags;
+	struct sunxi_ir *ir = platform_get_drvdata(pdev);
+
+	clk_disable_unprepare(ir->clk);
+	clk_disable_unprepare(ir->apb_clk);
+
+	spin_lock_irqsave(&ir->ir_lock, flags);
+	/* disable IR IRQ */
+	writel(0, ir->base + SUNXI_IR_RXINT_REG);
+	/* clear All Rx Interrupt Status */
+	writel(REG_RXSTA_CLEARALL, ir->base + SUNXI_IR_RXSTA_REG);
+	/* disable IR */
+	writel(0, ir->base + SUNXI_IR_CTL_REG);
+	spin_unlock_irqrestore(&ir->ir_lock, flags);
+
+	rc_unregister_device(ir->rc);
+	return 0;
+}
+
+static const struct of_device_id sunxi_ir_match[] = {
+	{ .compatible = "allwinner,sun7i-a20-ir", },
+	{},
+};
+
+static struct platform_driver sunxi_ir_driver = {
+	.probe          = sunxi_ir_probe,
+	.remove         = sunxi_ir_remove,
+	.driver = {
+		.name = SUNXI_IR_DEV,
+		.owner = THIS_MODULE,
+		.of_match_table = sunxi_ir_match,
+	},
+};
+
+module_platform_driver(sunxi_ir_driver);
+
+MODULE_DESCRIPTION("Allwinner sunXi IR controller driver");
+MODULE_AUTHOR("Alexsey Shestacov <wingrime@linux-sunxi.org>");
+MODULE_LICENSE("GPL");
-- 
1.7.1

[PATCH v10 3/5] ARM: sunxi: Add pins for IR controller on A20 to dtsi

[Alexander Bersenev]

This patch adds pins for two IR controllers on A20

Signed-off-by: Alexander Bersenev <bay@hackerdom.ru>
Signed-off-by: Alexsey Shestacov <wingrime@linux-sunxi.org>
---
 arch/arm/boot/dts/sun7i-a20.dtsi |   14 ++++++++++++++
 1 files changed, 14 insertions(+), 0 deletions(-)

diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi
index 01e9466..656d7d3 100644
--- a/arch/arm/boot/dts/sun7i-a20.dtsi
+++ b/arch/arm/boot/dts/sun7i-a20.dtsi
@@ -738,6 +738,20 @@
 				allwinner,drive = <2>;
 				allwinner,pull = <0>;
 			};
+
+			ir0_pins_a: ir0@0 {
+				    allwinner,pins = "PB3","PB4";
+				    allwinner,function = "ir0";
+				    allwinner,drive = <0>;
+				    allwinner,pull = <0>;
+			};
+
+			ir1_pins_a: ir1@0 {
+				    allwinner,pins = "PB22","PB23";
+				    allwinner,function = "ir1";
+				    allwinner,drive = <0>;
+				    allwinner,pull = <0>;
+			};
 		};
 
 		timer@01c20c00 {
-- 
1.7.1

[PATCH v10 3/5] ARM: sunxi: Add pins for IR controller on A20 to dtsi

[Alexander Bersenev]

This patch adds pins for two IR controllers on A20

Signed-off-by: Alexander Bersenev <bay-d8LqKIyZzER6k2ZkT/Rh8A@public.gmane.org>
Signed-off-by: Alexsey Shestacov <wingrime-3kdeTeqwOZ9EV1b7eY7vFQ@public.gmane.org>
---
 arch/arm/boot/dts/sun7i-a20.dtsi |   14 ++++++++++++++
 1 files changed, 14 insertions(+), 0 deletions(-)

diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi
index 01e9466..656d7d3 100644
--- a/arch/arm/boot/dts/sun7i-a20.dtsi
+++ b/arch/arm/boot/dts/sun7i-a20.dtsi
@@ -738,6 +738,20 @@
 				allwinner,drive = <2>;
 				allwinner,pull = <0>;
 			};
+
+			ir0_pins_a: ir0@0 {
+				    allwinner,pins = "PB3","PB4";
+				    allwinner,function = "ir0";
+				    allwinner,drive = <0>;
+				    allwinner,pull = <0>;
+			};
+
+			ir1_pins_a: ir1@0 {
+				    allwinner,pins = "PB22","PB23";
+				    allwinner,function = "ir1";
+				    allwinner,drive = <0>;
+				    allwinner,pull = <0>;
+			};
 		};
 
 		timer@01c20c00 {
-- 
1.7.1

[PATCH v10 3/5] ARM: sunxi: Add pins for IR controller on A20 to dtsi

[Alexander Bersenev]

This patch adds pins for two IR controllers on A20

Signed-off-by: Alexander Bersenev <bay@hackerdom.ru>
Signed-off-by: Alexsey Shestacov <wingrime@linux-sunxi.org>
---
 arch/arm/boot/dts/sun7i-a20.dtsi |   14 ++++++++++++++
 1 files changed, 14 insertions(+), 0 deletions(-)

diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi
index 01e9466..656d7d3 100644
--- a/arch/arm/boot/dts/sun7i-a20.dtsi
+++ b/arch/arm/boot/dts/sun7i-a20.dtsi
@@ -738,6 +738,20 @@
 				allwinner,drive = <2>;
 				allwinner,pull = <0>;
 			};
+
+			ir0_pins_a: ir0 at 0 {
+				    allwinner,pins = "PB3","PB4";
+				    allwinner,function = "ir0";
+				    allwinner,drive = <0>;
+				    allwinner,pull = <0>;
+			};
+
+			ir1_pins_a: ir1 at 0 {
+				    allwinner,pins = "PB22","PB23";
+				    allwinner,function = "ir1";
+				    allwinner,drive = <0>;
+				    allwinner,pull = <0>;
+			};
 		};
 
 		timer at 01c20c00 {
-- 
1.7.1

[PATCH v10 4/5] ARM: sunxi: Add IR controllers on A20 to dtsi

[Alexander Bersenev]

This patch adds records for two IR controllers on A20

Signed-off-by: Alexander Bersenev <bay@hackerdom.ru>
Signed-off-by: Alexsey Shestacov <wingrime@linux-sunxi.org>
---
 arch/arm/boot/dts/sun7i-a20.dtsi |   18 ++++++++++++++++++
 1 files changed, 18 insertions(+), 0 deletions(-)

diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi
index 656d7d3..1782375 100644
--- a/arch/arm/boot/dts/sun7i-a20.dtsi
+++ b/arch/arm/boot/dts/sun7i-a20.dtsi
@@ -785,6 +785,24 @@
 			status = "disabled";
 		};
 
+		ir0: ir@01c21800 {
+			compatible = "allwinner,sun7i-a20-ir";
+			clocks = <&apb0_gates 6>, <&ir0_clk>;
+			clock-names = "apb", "ir";
+			interrupts = <0 5 4>;
+			reg = <0x01c21800 0x40>;
+			status = "disabled";
+		};
+
+		ir1: ir@01c21c00 {
+			compatible = "allwinner,sun7i-a20-ir";
+			clocks = <&apb0_gates 7>, <&ir1_clk>;
+			clock-names = "apb", "ir";
+			interrupts = <0 6 4>;
+			reg = <0x01c21c00 0x40>;
+			status = "disabled";
+		};
+
 		sid: eeprom@01c23800 {
 			compatible = "allwinner,sun7i-a20-sid";
 			reg = <0x01c23800 0x200>;
-- 
1.7.1

[PATCH v10 4/5] ARM: sunxi: Add IR controllers on A20 to dtsi

[Alexander Bersenev]

This patch adds records for two IR controllers on A20

Signed-off-by: Alexander Bersenev <bay-d8LqKIyZzER6k2ZkT/Rh8A@public.gmane.org>
Signed-off-by: Alexsey Shestacov <wingrime-3kdeTeqwOZ9EV1b7eY7vFQ@public.gmane.org>
---
 arch/arm/boot/dts/sun7i-a20.dtsi |   18 ++++++++++++++++++
 1 files changed, 18 insertions(+), 0 deletions(-)

diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi
index 656d7d3..1782375 100644
--- a/arch/arm/boot/dts/sun7i-a20.dtsi
+++ b/arch/arm/boot/dts/sun7i-a20.dtsi
@@ -785,6 +785,24 @@
 			status = "disabled";
 		};
 
+		ir0: ir@01c21800 {
+			compatible = "allwinner,sun7i-a20-ir";
+			clocks = <&apb0_gates 6>, <&ir0_clk>;
+			clock-names = "apb", "ir";
+			interrupts = <0 5 4>;
+			reg = <0x01c21800 0x40>;
+			status = "disabled";
+		};
+
+		ir1: ir@01c21c00 {
+			compatible = "allwinner,sun7i-a20-ir";
+			clocks = <&apb0_gates 7>, <&ir1_clk>;
+			clock-names = "apb", "ir";
+			interrupts = <0 6 4>;
+			reg = <0x01c21c00 0x40>;
+			status = "disabled";
+		};
+
 		sid: eeprom@01c23800 {
 			compatible = "allwinner,sun7i-a20-sid";
 			reg = <0x01c23800 0x200>;
-- 
1.7.1

[PATCH v10 4/5] ARM: sunxi: Add IR controllers on A20 to dtsi

[Alexander Bersenev]

This patch adds records for two IR controllers on A20

Signed-off-by: Alexander Bersenev <bay@hackerdom.ru>
Signed-off-by: Alexsey Shestacov <wingrime@linux-sunxi.org>
---
 arch/arm/boot/dts/sun7i-a20.dtsi |   18 ++++++++++++++++++
 1 files changed, 18 insertions(+), 0 deletions(-)

diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi
index 656d7d3..1782375 100644
--- a/arch/arm/boot/dts/sun7i-a20.dtsi
+++ b/arch/arm/boot/dts/sun7i-a20.dtsi
@@ -785,6 +785,24 @@
 			status = "disabled";
 		};
 
+		ir0: ir at 01c21800 {
+			compatible = "allwinner,sun7i-a20-ir";
+			clocks = <&apb0_gates 6>, <&ir0_clk>;
+			clock-names = "apb", "ir";
+			interrupts = <0 5 4>;
+			reg = <0x01c21800 0x40>;
+			status = "disabled";
+		};
+
+		ir1: ir at 01c21c00 {
+			compatible = "allwinner,sun7i-a20-ir";
+			clocks = <&apb0_gates 7>, <&ir1_clk>;
+			clock-names = "apb", "ir";
+			interrupts = <0 6 4>;
+			reg = <0x01c21c00 0x40>;
+			status = "disabled";
+		};
+
 		sid: eeprom at 01c23800 {
 			compatible = "allwinner,sun7i-a20-sid";
 			reg = <0x01c23800 0x200>;
-- 
1.7.1

[PATCH v10 5/5] ARM: sunxi: Enable IR controller on cubieboard 2 and cubietruck in dts

[Alexander Bersenev]

This patch enables two IR devices in dts:
- One IR device physically found on Cubieboard 2
- One IR device physically found on Cubietruck

Signed-off-by: Alexander Bersenev <bay@hackerdom.ru>
Signed-off-by: Alexsey Shestacov <wingrime@linux-sunxi.org>
---
 arch/arm/boot/dts/sun7i-a20-cubieboard2.dts |    6 ++++++
 arch/arm/boot/dts/sun7i-a20-cubietruck.dts  |    6 ++++++
 2 files changed, 12 insertions(+), 0 deletions(-)

diff --git a/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts b/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts
index a5ad945..a70f0b4 100644
--- a/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts
+++ b/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts
@@ -66,6 +66,12 @@
 			};
 		};
 
+		ir0: ir@01c21800 {
+			pinctrl-names = "default";
+			pinctrl-0 = <&ir0_pins_a>;
+			status = "okay";
+		};
+
 		uart0: serial@01c28000 {
 			pinctrl-names = "default";
 			pinctrl-0 = <&uart0_pins_a>;
diff --git a/arch/arm/boot/dts/sun7i-a20-cubietruck.dts b/arch/arm/boot/dts/sun7i-a20-cubietruck.dts
index b87fea9..96639d5 100644
--- a/arch/arm/boot/dts/sun7i-a20-cubietruck.dts
+++ b/arch/arm/boot/dts/sun7i-a20-cubietruck.dts
@@ -100,6 +100,12 @@
 			status = "okay";
 		};
 
+		ir0: ir@01c21800 {
+			pinctrl-names = "default";
+			pinctrl-0 = <&ir0_pins_a>;
+			status = "okay";
+		};
+
 		uart0: serial@01c28000 {
 			pinctrl-names = "default";
 			pinctrl-0 = <&uart0_pins_a>;
-- 
1.7.1

[PATCH v10 5/5] ARM: sunxi: Enable IR controller on cubieboard 2 and cubietruck in dts

[Alexander Bersenev]

This patch enables two IR devices in dts:
- One IR device physically found on Cubieboard 2
- One IR device physically found on Cubietruck

Signed-off-by: Alexander Bersenev <bay-d8LqKIyZzER6k2ZkT/Rh8A@public.gmane.org>
Signed-off-by: Alexsey Shestacov <wingrime-3kdeTeqwOZ9EV1b7eY7vFQ@public.gmane.org>
---
 arch/arm/boot/dts/sun7i-a20-cubieboard2.dts |    6 ++++++
 arch/arm/boot/dts/sun7i-a20-cubietruck.dts  |    6 ++++++
 2 files changed, 12 insertions(+), 0 deletions(-)

diff --git a/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts b/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts
index a5ad945..a70f0b4 100644
--- a/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts
+++ b/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts
@@ -66,6 +66,12 @@
 			};
 		};
 
+		ir0: ir@01c21800 {
+			pinctrl-names = "default";
+			pinctrl-0 = <&ir0_pins_a>;
+			status = "okay";
+		};
+
 		uart0: serial@01c28000 {
 			pinctrl-names = "default";
 			pinctrl-0 = <&uart0_pins_a>;
diff --git a/arch/arm/boot/dts/sun7i-a20-cubietruck.dts b/arch/arm/boot/dts/sun7i-a20-cubietruck.dts
index b87fea9..96639d5 100644
--- a/arch/arm/boot/dts/sun7i-a20-cubietruck.dts
+++ b/arch/arm/boot/dts/sun7i-a20-cubietruck.dts
@@ -100,6 +100,12 @@
 			status = "okay";
 		};
 
+		ir0: ir@01c21800 {
+			pinctrl-names = "default";
+			pinctrl-0 = <&ir0_pins_a>;
+			status = "okay";
+		};
+
 		uart0: serial@01c28000 {
 			pinctrl-names = "default";
 			pinctrl-0 = <&uart0_pins_a>;
-- 
1.7.1

[PATCH v10 5/5] ARM: sunxi: Enable IR controller on cubieboard 2 and cubietruck in dts

[Alexander Bersenev]

This patch enables two IR devices in dts:
- One IR device physically found on Cubieboard 2
- One IR device physically found on Cubietruck

Signed-off-by: Alexander Bersenev <bay@hackerdom.ru>
Signed-off-by: Alexsey Shestacov <wingrime@linux-sunxi.org>
---
 arch/arm/boot/dts/sun7i-a20-cubieboard2.dts |    6 ++++++
 arch/arm/boot/dts/sun7i-a20-cubietruck.dts  |    6 ++++++
 2 files changed, 12 insertions(+), 0 deletions(-)

diff --git a/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts b/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts
index a5ad945..a70f0b4 100644
--- a/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts
+++ b/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts
@@ -66,6 +66,12 @@
 			};
 		};
 
+		ir0: ir at 01c21800 {
+			pinctrl-names = "default";
+			pinctrl-0 = <&ir0_pins_a>;
+			status = "okay";
+		};
+
 		uart0: serial at 01c28000 {
 			pinctrl-names = "default";
 			pinctrl-0 = <&uart0_pins_a>;
diff --git a/arch/arm/boot/dts/sun7i-a20-cubietruck.dts b/arch/arm/boot/dts/sun7i-a20-cubietruck.dts
index b87fea9..96639d5 100644
--- a/arch/arm/boot/dts/sun7i-a20-cubietruck.dts
+++ b/arch/arm/boot/dts/sun7i-a20-cubietruck.dts
@@ -100,6 +100,12 @@
 			status = "okay";
 		};
 
+		ir0: ir at 01c21800 {
+			pinctrl-names = "default";
+			pinctrl-0 = <&ir0_pins_a>;
+			status = "okay";
+		};
+
 		uart0: serial at 01c28000 {
 			pinctrl-names = "default";
 			pinctrl-0 = <&uart0_pins_a>;
-- 
1.7.1

Re: [PATCH v10 4/5] ARM: sunxi: Add IR controllers on A20 to dtsi

[Maxime Ripard]

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On Sat, Jun 21, 2014 at 05:04:05PM +0600, Alexander Bersenev wrote:
> This patch adds records for two IR controllers on A20
> 
> Signed-off-by: Alexander Bersenev <bay@hackerdom.ru>
> Signed-off-by: Alexsey Shestacov <wingrime@linux-sunxi.org>

Applied, thanks.

Maxime
-- 
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com

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[PATCH v10 4/5] ARM: sunxi: Add IR controllers on A20 to dtsi

[Maxime Ripard]

On Sat, Jun 21, 2014 at 05:04:05PM +0600, Alexander Bersenev wrote:
> This patch adds records for two IR controllers on A20
> 
> Signed-off-by: Alexander Bersenev <bay@hackerdom.ru>
> Signed-off-by: Alexsey Shestacov <wingrime@linux-sunxi.org>

Applied, thanks.

Maxime
-- 
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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Re: [PATCH v10 4/5] ARM: sunxi: Add IR controllers on A20 to dtsi

[Александр Берсенев]

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Thanks,

Should I send applied patches in the further versions of this patch set?

Best,
Alexander Bersenev

понедельник, 23 июня 2014 г., 19:10:45 UTC+6 пользователь Maxime Ripard 
написал:
>
> On Sat, Jun 21, 2014 at 05:04:05PM +0600, Alexander Bersenev wrote: 
> > This patch adds records for two IR controllers on A20 
> > 
> > Signed-off-by: Alexander Bersenev <b...-d8LqKIyZzER6k2ZkT/Rh8A@public.gmane.org <javascript:>> 
> > Signed-off-by: Alexsey Shestacov <wing...-3kdeTeqwOZ9EV1b7eY7vFQ@public.gmane.org <javascript:>> 
>
>
> Applied, thanks. 
>
> Maxime 
> -- 
> Maxime Ripard, Free Electrons 
> Embedded Linux, Kernel and Android engineering 
> http://free-electrons.com 
>

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Re: [linux-sunxi] Re: [PATCH v10 4/5] ARM: sunxi: Add IR controllers on A20 to dtsi

[Maxime Ripard]

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On Mon, Jun 23, 2014 at 01:08:24PM -0700, Александр Берсенев wrote:
> Thanks,
> 
> Should I send applied patches in the further versions of this patch set?

No, you don't have to.

Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com

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Re: Re: [PATCH v10 4/5] ARM: sunxi: Add IR controllers on A20 to dtsi

[Maxime Ripard]

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On Mon, Jun 23, 2014 at 01:08:24PM -0700, Александр Берсенев wrote:
> Thanks,
> 
> Should I send applied patches in the further versions of this patch set?

No, you don't have to.

Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com

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[linux-sunxi] Re: [PATCH v10 4/5] ARM: sunxi: Add IR controllers on A20 to dtsi

[Maxime Ripard]

On Mon, Jun 23, 2014 at 01:08:24PM -0700, ????????? ???????? wrote:
> Thanks,
> 
> Should I send applied patches in the further versions of this patch set?

No, you don't have to.

Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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