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Groups > linux.kernel > #1272819 > unrolled thread

[PATCH v2 0/7] Generalized broadcom cygnus gpio driver

Started byPramod Kumar <pramodku@broadcom.com>
First post2015-11-19 05:00 +0100
Last post2015-11-30 09:50 +0100
Articles 6 — 3 participants

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Contents

  [PATCH v2 0/7] Generalized broadcom cygnus gpio driver Pramod Kumar <pramodku@broadcom.com> - 2015-11-19 05:00 +0100
    [PATCH v2 1/7] dt-binding: Add ngpios property to GPIO controller node Pramod Kumar <pramodku@broadcom.com> - 2015-11-19 05:00 +0100
      Re: [PATCH v2 1/7] dt-binding: Add ngpios property to GPIO  controller node Rob Herring <robh@kernel.org> - 2015-11-20 16:40 +0100
      Re: [PATCH v2 1/7] dt-binding: Add ngpios property to GPIO controller node Linus Walleij <linus.walleij@linaro.org> - 2015-11-30 09:40 +0100
    [PATCH v2 5/7] gpio: Rename func/macro/var to IP-block,iproc Pramod Kumar <pramodku@broadcom.com> - 2015-11-19 05:00 +0100
      Re: [PATCH v2 5/7] gpio: Rename func/macro/var to IP-block,iproc Linus Walleij <linus.walleij@linaro.org> - 2015-11-30 09:50 +0100

#1272819 — [PATCH v2 0/7] Generalized broadcom cygnus gpio driver

FromPramod Kumar <pramodku@broadcom.com>
Date2015-11-19 05:00 +0100
Subject[PATCH v2 0/7] Generalized broadcom cygnus gpio driver
Message-ID<qwoy5-41Q-5@gated-at.bofh.it>
Generalized pinctrl-cygnus-gpio driver so that it could be used for all
iProc architecture based future SoCs having same gpio pin controller.
Generalization process made the below changes in driver-

1. Addressed number of pins from DT through "ngpios" property and removed
from driver.
2. Since all iProc based SoCs would use this driver hence renamed all
variables/macros/functions and even file name on iproc.


This patchset applies on v4.4-rc1 and is tested on cygnus SVK and could be
find at-
https://github.com/Broadcom/arm64-linux/tree/iproc-gpio-v2

Changes from v1:
-Rebased patches to v4.4-rc1
-Removed accepted patches

Pramod Kumar (7):
  dt-binding: Add ngpios property to GPIO controller node
  dts: define ngpios property in gpio controller's node
  pinctrl: use ngpios propety from DT
  pinctrl: Add new compatible string to GPIO controller driver
  gpio: Rename func/macro/var to IP-block,iproc
  Documentation: Rename gpio controller name from cygnus to iproc
  pinctrl: Rename gpio driver from cygnus to iproc

 .../{brcm,cygnus-gpio.txt => brcm,iproc-gpio.txt}  |   9 +-
 arch/arm/boot/dts/bcm-cygnus.dtsi                  |   3 +
 drivers/pinctrl/bcm/Kconfig                        |  30 +-
 drivers/pinctrl/bcm/Makefile                       |   2 +-
 ...{pinctrl-cygnus-gpio.c => pinctrl-iproc-gpio.c} | 355 ++++++++++-----------
 5 files changed, 198 insertions(+), 201 deletions(-)
 rename Documentation/devicetree/bindings/pinctrl/{brcm,cygnus-gpio.txt => brcm,iproc-gpio.txt} (94%)
 rename drivers/pinctrl/bcm/{pinctrl-cygnus-gpio.c => pinctrl-iproc-gpio.c} (56%)

-- 
1.9.1

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#1272820 — [PATCH v2 1/7] dt-binding: Add ngpios property to GPIO controller node

FromPramod Kumar <pramodku@broadcom.com>
Date2015-11-19 05:00 +0100
Subject[PATCH v2 1/7] dt-binding: Add ngpios property to GPIO controller node
Message-ID<qwoy6-41Q-25@gated-at.bofh.it>
In reply to#1272819
Add ngpios property to the gpio controller's DT node so that controller
driver extracts total number of in-use gpio lines from DT and removes
dependency on driver.

Signed-off-by: Pramod Kumar <pramodku@broadcom.com>
Reviewed-by: Ray Jui <rjui@broadcom.com>
Reviewed-by: Scott Branden <sbranden@broadcom.com>
---
 Documentation/devicetree/bindings/pinctrl/brcm,cygnus-gpio.txt | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/pinctrl/brcm,cygnus-gpio.txt b/Documentation/devicetree/bindings/pinctrl/brcm,cygnus-gpio.txt
index 16589fb6..8b1e5d1 100644
--- a/Documentation/devicetree/bindings/pinctrl/brcm,cygnus-gpio.txt
+++ b/Documentation/devicetree/bindings/pinctrl/brcm,cygnus-gpio.txt
@@ -10,6 +10,9 @@ Required properties:
     Define the base and range of the I/O address space that contains the Cygnus
 GPIO/PINCONF controller registers
 
+- ngpios:
+    Total number of in-use slots in GPIO controller
+
 - #gpio-cells:
     Must be two. The first cell is the GPIO pin number (within the
 controller's pin space) and the second cell is used for the following:
@@ -57,6 +60,7 @@ Example:
 		compatible = "brcm,cygnus-ccm-gpio";
 		reg = <0x1800a000 0x50>,
 		      <0x0301d164 0x20>;
+		ngpios = <24>;
 		#gpio-cells = <2>;
 		gpio-controller;
 		interrupts = <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>;
@@ -78,6 +82,7 @@ Example:
 	gpio_asiu: gpio@180a5000 {
 		compatible = "brcm,cygnus-asiu-gpio";
 		reg = <0x180a5000 0x668>;
+		ngpios = <146>;
 		#gpio-cells = <2>;
 		gpio-controller;
 		interrupts = <GIC_SPI 174 IRQ_TYPE_LEVEL_HIGH>;
-- 
1.9.1

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#1274190 — Re: [PATCH v2 1/7] dt-binding: Add ngpios property to GPIO controller node

FromRob Herring <robh@kernel.org>
Date2015-11-20 16:40 +0100
SubjectRe: [PATCH v2 1/7] dt-binding: Add ngpios property to GPIO controller node
Message-ID<qwVX5-Bk-35@gated-at.bofh.it>
In reply to#1272820
On Thu, Nov 19, 2015 at 09:22:13AM +0530, Pramod Kumar wrote:
> Add ngpios property to the gpio controller's DT node so that controller
> driver extracts total number of in-use gpio lines from DT and removes
> dependency on driver.
> 
> Signed-off-by: Pramod Kumar <pramodku@broadcom.com>
> Reviewed-by: Ray Jui <rjui@broadcom.com>
> Reviewed-by: Scott Branden <sbranden@broadcom.com>

Acked-by: Rob Herring <robh@kernel.org>

> ---
>  Documentation/devicetree/bindings/pinctrl/brcm,cygnus-gpio.txt | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/pinctrl/brcm,cygnus-gpio.txt b/Documentation/devicetree/bindings/pinctrl/brcm,cygnus-gpio.txt
> index 16589fb6..8b1e5d1 100644
> --- a/Documentation/devicetree/bindings/pinctrl/brcm,cygnus-gpio.txt
> +++ b/Documentation/devicetree/bindings/pinctrl/brcm,cygnus-gpio.txt
> @@ -10,6 +10,9 @@ Required properties:
>      Define the base and range of the I/O address space that contains the Cygnus
>  GPIO/PINCONF controller registers
>  
> +- ngpios:
> +    Total number of in-use slots in GPIO controller
> +
>  - #gpio-cells:
>      Must be two. The first cell is the GPIO pin number (within the
>  controller's pin space) and the second cell is used for the following:
> @@ -57,6 +60,7 @@ Example:
>  		compatible = "brcm,cygnus-ccm-gpio";
>  		reg = <0x1800a000 0x50>,
>  		      <0x0301d164 0x20>;
> +		ngpios = <24>;
>  		#gpio-cells = <2>;
>  		gpio-controller;
>  		interrupts = <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>;
> @@ -78,6 +82,7 @@ Example:
>  	gpio_asiu: gpio@180a5000 {
>  		compatible = "brcm,cygnus-asiu-gpio";
>  		reg = <0x180a5000 0x668>;
> +		ngpios = <146>;
>  		#gpio-cells = <2>;
>  		gpio-controller;
>  		interrupts = <GIC_SPI 174 IRQ_TYPE_LEVEL_HIGH>;
> -- 
> 1.9.1
> 
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#1279677 — Re: [PATCH v2 1/7] dt-binding: Add ngpios property to GPIO controller node

FromLinus Walleij <linus.walleij@linaro.org>
Date2015-11-30 09:40 +0100
SubjectRe: [PATCH v2 1/7] dt-binding: Add ngpios property to GPIO controller node
Message-ID<qAsa5-1cU-17@gated-at.bofh.it>
In reply to#1272820
On Thu, Nov 19, 2015 at 4:52 AM, Pramod Kumar <pramodku@broadcom.com> wrote:

> Add ngpios property to the gpio controller's DT node so that controller
> driver extracts total number of in-use gpio lines from DT and removes
> dependency on driver.
>
> Signed-off-by: Pramod Kumar <pramodku@broadcom.com>
> Reviewed-by: Ray Jui <rjui@broadcom.com>
> Reviewed-by: Scott Branden <sbranden@broadcom.com>

Patch applied with Rob's ACK.

Yours,
Linus Walleij
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#1272823 — [PATCH v2 5/7] gpio: Rename func/macro/var to IP-block,iproc

FromPramod Kumar <pramodku@broadcom.com>
Date2015-11-19 05:00 +0100
Subject[PATCH v2 5/7] gpio: Rename func/macro/var to IP-block,iproc
Message-ID<qwoy6-41Q-21@gated-at.bofh.it>
In reply to#1272819
Change functions, macros and variables name from cygnus to IP block,
iproc, so that it could be used in all iproc based future SoCs having
same GPIO controller block.

Signed-off-by: Pramod Kumar <pramodku@broadcom.com>
Reviewed-by: Ray Jui <rjui@broadcom.com>
Reviewed-by: Scott Branden <sbranden@broadcom.com>
---
 drivers/pinctrl/bcm/pinctrl-cygnus-gpio.c | 306 +++++++++++++++---------------
 1 file changed, 154 insertions(+), 152 deletions(-)

diff --git a/drivers/pinctrl/bcm/pinctrl-cygnus-gpio.c b/drivers/pinctrl/bcm/pinctrl-cygnus-gpio.c
index d0d788f..ed21ab2 100644
--- a/drivers/pinctrl/bcm/pinctrl-cygnus-gpio.c
+++ b/drivers/pinctrl/bcm/pinctrl-cygnus-gpio.c
@@ -10,14 +10,16 @@
  * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
- * This file contains the Broadcom Cygnus GPIO driver that supports 3
- * GPIO controllers on Cygnus including the ASIU GPIO controller, the
+ * This file contains the Broadcom Iproc GPIO driver that supports 3
+ * GPIO controllers on Iproc including the ASIU GPIO controller, the
  * chipCommonG GPIO controller, and the always-on GPIO controller. Basic
  * PINCONF such as bias pull up/down, and drive strength are also supported
  * in this driver.
  *
- * Pins from the ASIU GPIO can be individually muxed to GPIO function,
- * through the interaction with the Cygnus IOMUX controller
+ * It provides the functionality where pins from the GPIO can be
+ * individually muxed to GPIO function, if individual pad
+ * configuration is supported, through the interaction with respective
+ * SoCs IOMUX controller.
  */
 
 #include <linux/kernel.h>
@@ -34,42 +36,42 @@
 
 #include "../pinctrl-utils.h"
 
-#define CYGNUS_GPIO_DATA_IN_OFFSET   0x00
-#define CYGNUS_GPIO_DATA_OUT_OFFSET  0x04
-#define CYGNUS_GPIO_OUT_EN_OFFSET    0x08
-#define CYGNUS_GPIO_INT_TYPE_OFFSET  0x0c
-#define CYGNUS_GPIO_INT_DE_OFFSET    0x10
-#define CYGNUS_GPIO_INT_EDGE_OFFSET  0x14
-#define CYGNUS_GPIO_INT_MSK_OFFSET   0x18
-#define CYGNUS_GPIO_INT_STAT_OFFSET  0x1c
-#define CYGNUS_GPIO_INT_MSTAT_OFFSET 0x20
-#define CYGNUS_GPIO_INT_CLR_OFFSET   0x24
-#define CYGNUS_GPIO_PAD_RES_OFFSET   0x34
-#define CYGNUS_GPIO_RES_EN_OFFSET    0x38
+#define IPROC_GPIO_DATA_IN_OFFSET   0x00
+#define IPROC_GPIO_DATA_OUT_OFFSET  0x04
+#define IPROC_GPIO_OUT_EN_OFFSET    0x08
+#define IPROC_GPIO_INT_TYPE_OFFSET  0x0c
+#define IPROC_GPIO_INT_DE_OFFSET    0x10
+#define IPROC_GPIO_INT_EDGE_OFFSET  0x14
+#define IPROC_GPIO_INT_MSK_OFFSET   0x18
+#define IPROC_GPIO_INT_STAT_OFFSET  0x1c
+#define IPROC_GPIO_INT_MSTAT_OFFSET 0x20
+#define IPROC_GPIO_INT_CLR_OFFSET   0x24
+#define IPROC_GPIO_PAD_RES_OFFSET   0x34
+#define IPROC_GPIO_RES_EN_OFFSET    0x38
 
 /* drive strength control for ASIU GPIO */
-#define CYGNUS_GPIO_ASIU_DRV0_CTRL_OFFSET 0x58
+#define IPROC_GPIO_ASIU_DRV0_CTRL_OFFSET 0x58
 
 /* drive strength control for CCM/CRMU (AON) GPIO */
-#define CYGNUS_GPIO_DRV0_CTRL_OFFSET  0x00
+#define IPROC_GPIO_DRV0_CTRL_OFFSET  0x00
 
 #define GPIO_BANK_SIZE 0x200
 #define NGPIOS_PER_BANK 32
 #define GPIO_BANK(pin) ((pin) / NGPIOS_PER_BANK)
 
-#define CYGNUS_GPIO_REG(pin, reg) (GPIO_BANK(pin) * GPIO_BANK_SIZE + (reg))
-#define CYGNUS_GPIO_SHIFT(pin) ((pin) % NGPIOS_PER_BANK)
+#define IPROC_GPIO_REG(pin, reg) (GPIO_BANK(pin) * GPIO_BANK_SIZE + (reg))
+#define IPROC_GPIO_SHIFT(pin) ((pin) % NGPIOS_PER_BANK)
 
 #define GPIO_DRV_STRENGTH_BIT_SHIFT  20
 #define GPIO_DRV_STRENGTH_BITS       3
 #define GPIO_DRV_STRENGTH_BIT_MASK   ((1 << GPIO_DRV_STRENGTH_BITS) - 1)
 
 /*
- * Cygnus GPIO core
+ * Iproc GPIO core
  *
  * @dev: pointer to device
- * @base: I/O register base for Cygnus GPIO controller
- * @io_ctrl: I/O register base for certain type of Cygnus GPIO controller that
+ * @base: I/O register base for Iproc GPIO controller
+ * @io_ctrl: I/O register base for certain type of Iproc GPIO controller that
  * has the PINCONF support implemented outside of the GPIO block
  * @lock: lock to protect access to I/O registers
  * @gc: GPIO chip
@@ -79,7 +81,7 @@
  * @pctl: pointer to pinctrl_dev
  * @pctldesc: pinctrl descriptor
  */
-struct cygnus_gpio {
+struct iproc_gpio {
 	struct device *dev;
 
 	void __iomem *base;
@@ -96,33 +98,33 @@ struct cygnus_gpio {
 	struct pinctrl_desc pctldesc;
 };
 
-static inline struct cygnus_gpio *to_cygnus_gpio(struct gpio_chip *gc)
+static inline struct iproc_gpio *to_iproc_gpio(struct gpio_chip *gc)
 {
-	return container_of(gc, struct cygnus_gpio, gc);
+	return container_of(gc, struct iproc_gpio, gc);
 }
 
 /*
  * Mapping from PINCONF pins to GPIO pins is 1-to-1
  */
-static inline unsigned cygnus_pin_to_gpio(unsigned pin)
+static inline unsigned iproc_pin_to_gpio(unsigned pin)
 {
 	return pin;
 }
 
 /**
- *  cygnus_set_bit - set or clear one bit (corresponding to the GPIO pin) in a
- *  Cygnus GPIO register
+ *  iproc_set_bit - set or clear one bit (corresponding to the GPIO pin) in a
+ *  Iproc GPIO register
  *
- *  @cygnus_gpio: Cygnus GPIO device
+ *  @iproc_gpio: Iproc GPIO device
  *  @reg: register offset
  *  @gpio: GPIO pin
  *  @set: set or clear
  */
-static inline void cygnus_set_bit(struct cygnus_gpio *chip, unsigned int reg,
+static inline void iproc_set_bit(struct iproc_gpio *chip, unsigned int reg,
 				  unsigned gpio, bool set)
 {
-	unsigned int offset = CYGNUS_GPIO_REG(gpio, reg);
-	unsigned int shift = CYGNUS_GPIO_SHIFT(gpio);
+	unsigned int offset = IPROC_GPIO_REG(gpio, reg);
+	unsigned int shift = IPROC_GPIO_SHIFT(gpio);
 	u32 val;
 
 	val = readl(chip->base + offset);
@@ -133,19 +135,19 @@ static inline void cygnus_set_bit(struct cygnus_gpio *chip, unsigned int reg,
 	writel(val, chip->base + offset);
 }
 
-static inline bool cygnus_get_bit(struct cygnus_gpio *chip, unsigned int reg,
+static inline bool iproc_get_bit(struct iproc_gpio *chip, unsigned int reg,
 				  unsigned gpio)
 {
-	unsigned int offset = CYGNUS_GPIO_REG(gpio, reg);
-	unsigned int shift = CYGNUS_GPIO_SHIFT(gpio);
+	unsigned int offset = IPROC_GPIO_REG(gpio, reg);
+	unsigned int shift = IPROC_GPIO_SHIFT(gpio);
 
 	return !!(readl(chip->base + offset) & BIT(shift));
 }
 
-static void cygnus_gpio_irq_handler(struct irq_desc *desc)
+static void iproc_gpio_irq_handler(struct irq_desc *desc)
 {
 	struct gpio_chip *gc = irq_desc_get_handler_data(desc);
-	struct cygnus_gpio *chip = to_cygnus_gpio(gc);
+	struct iproc_gpio *chip = to_iproc_gpio(gc);
 	struct irq_chip *irq_chip = irq_desc_get_chip(desc);
 	int i, bit;
 
@@ -154,7 +156,7 @@ static void cygnus_gpio_irq_handler(struct irq_desc *desc)
 	/* go through the entire GPIO banks and handle all interrupts */
 	for (i = 0; i < chip->num_banks; i++) {
 		unsigned long val = readl(chip->base + (i * GPIO_BANK_SIZE) +
-					  CYGNUS_GPIO_INT_MSTAT_OFFSET);
+					  IPROC_GPIO_INT_MSTAT_OFFSET);
 
 		for_each_set_bit(bit, &val, NGPIOS_PER_BANK) {
 			unsigned pin = NGPIOS_PER_BANK * i + bit;
@@ -165,7 +167,7 @@ static void cygnus_gpio_irq_handler(struct irq_desc *desc)
 			 * handler, so we do not leave any window
 			 */
 			writel(BIT(bit), chip->base + (i * GPIO_BANK_SIZE) +
-			       CYGNUS_GPIO_INT_CLR_OFFSET);
+			       IPROC_GPIO_INT_CLR_OFFSET);
 
 			generic_handle_irq(child_irq);
 		}
@@ -175,60 +177,60 @@ static void cygnus_gpio_irq_handler(struct irq_desc *desc)
 }
 
 
-static void cygnus_gpio_irq_ack(struct irq_data *d)
+static void iproc_gpio_irq_ack(struct irq_data *d)
 {
 	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
-	struct cygnus_gpio *chip = to_cygnus_gpio(gc);
+	struct iproc_gpio *chip = to_iproc_gpio(gc);
 	unsigned gpio = d->hwirq;
-	unsigned int offset = CYGNUS_GPIO_REG(gpio,
-			CYGNUS_GPIO_INT_CLR_OFFSET);
-	unsigned int shift = CYGNUS_GPIO_SHIFT(gpio);
+	unsigned int offset = IPROC_GPIO_REG(gpio,
+			IPROC_GPIO_INT_CLR_OFFSET);
+	unsigned int shift = IPROC_GPIO_SHIFT(gpio);
 	u32 val = BIT(shift);
 
 	writel(val, chip->base + offset);
 }
 
 /**
- *  cygnus_gpio_irq_set_mask - mask/unmask a GPIO interrupt
+ *  iproc_gpio_irq_set_mask - mask/unmask a GPIO interrupt
  *
  *  @d: IRQ chip data
  *  @unmask: mask/unmask GPIO interrupt
  */
-static void cygnus_gpio_irq_set_mask(struct irq_data *d, bool unmask)
+static void iproc_gpio_irq_set_mask(struct irq_data *d, bool unmask)
 {
 	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
-	struct cygnus_gpio *chip = to_cygnus_gpio(gc);
+	struct iproc_gpio *chip = to_iproc_gpio(gc);
 	unsigned gpio = d->hwirq;
 
-	cygnus_set_bit(chip, CYGNUS_GPIO_INT_MSK_OFFSET, gpio, unmask);
+	iproc_set_bit(chip, IPROC_GPIO_INT_MSK_OFFSET, gpio, unmask);
 }
 
-static void cygnus_gpio_irq_mask(struct irq_data *d)
+static void iproc_gpio_irq_mask(struct irq_data *d)
 {
 	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
-	struct cygnus_gpio *chip = to_cygnus_gpio(gc);
+	struct iproc_gpio *chip = to_iproc_gpio(gc);
 	unsigned long flags;
 
 	spin_lock_irqsave(&chip->lock, flags);
-	cygnus_gpio_irq_set_mask(d, false);
+	iproc_gpio_irq_set_mask(d, false);
 	spin_unlock_irqrestore(&chip->lock, flags);
 }
 
-static void cygnus_gpio_irq_unmask(struct irq_data *d)
+static void iproc_gpio_irq_unmask(struct irq_data *d)
 {
 	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
-	struct cygnus_gpio *chip = to_cygnus_gpio(gc);
+	struct iproc_gpio *chip = to_iproc_gpio(gc);
 	unsigned long flags;
 
 	spin_lock_irqsave(&chip->lock, flags);
-	cygnus_gpio_irq_set_mask(d, true);
+	iproc_gpio_irq_set_mask(d, true);
 	spin_unlock_irqrestore(&chip->lock, flags);
 }
 
-static int cygnus_gpio_irq_set_type(struct irq_data *d, unsigned int type)
+static int iproc_gpio_irq_set_type(struct irq_data *d, unsigned int type)
 {
 	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
-	struct cygnus_gpio *chip = to_cygnus_gpio(gc);
+	struct iproc_gpio *chip = to_iproc_gpio(gc);
 	unsigned gpio = d->hwirq;
 	bool level_triggered = false;
 	bool dual_edge = false;
@@ -263,10 +265,10 @@ static int cygnus_gpio_irq_set_type(struct irq_data *d, unsigned int type)
 	}
 
 	spin_lock_irqsave(&chip->lock, flags);
-	cygnus_set_bit(chip, CYGNUS_GPIO_INT_TYPE_OFFSET, gpio,
+	iproc_set_bit(chip, IPROC_GPIO_INT_TYPE_OFFSET, gpio,
 		       level_triggered);
-	cygnus_set_bit(chip, CYGNUS_GPIO_INT_DE_OFFSET, gpio, dual_edge);
-	cygnus_set_bit(chip, CYGNUS_GPIO_INT_EDGE_OFFSET, gpio,
+	iproc_set_bit(chip, IPROC_GPIO_INT_DE_OFFSET, gpio, dual_edge);
+	iproc_set_bit(chip, IPROC_GPIO_INT_EDGE_OFFSET, gpio,
 		       rising_or_high);
 	spin_unlock_irqrestore(&chip->lock, flags);
 
@@ -277,32 +279,32 @@ static int cygnus_gpio_irq_set_type(struct irq_data *d, unsigned int type)
 	return 0;
 }
 
-static struct irq_chip cygnus_gpio_irq_chip = {
-	.name = "bcm-cygnus-gpio",
-	.irq_ack = cygnus_gpio_irq_ack,
-	.irq_mask = cygnus_gpio_irq_mask,
-	.irq_unmask = cygnus_gpio_irq_unmask,
-	.irq_set_type = cygnus_gpio_irq_set_type,
+static struct irq_chip iproc_gpio_irq_chip = {
+	.name = "bcm-iproc-gpio",
+	.irq_ack = iproc_gpio_irq_ack,
+	.irq_mask = iproc_gpio_irq_mask,
+	.irq_unmask = iproc_gpio_irq_unmask,
+	.irq_set_type = iproc_gpio_irq_set_type,
 };
 
 /*
- * Request the Cygnus IOMUX pinmux controller to mux individual pins to GPIO
+ * Request the Iproc IOMUX pinmux controller to mux individual pins to GPIO
  */
-static int cygnus_gpio_request(struct gpio_chip *gc, unsigned offset)
+static int iproc_gpio_request(struct gpio_chip *gc, unsigned offset)
 {
-	struct cygnus_gpio *chip = to_cygnus_gpio(gc);
+	struct iproc_gpio *chip = to_iproc_gpio(gc);
 	unsigned gpio = gc->base + offset;
 
-	/* not all Cygnus GPIO pins can be muxed individually */
+	/* not all Iproc GPIO pins can be muxed individually */
 	if (!chip->pinmux_is_supported)
 		return 0;
 
 	return pinctrl_request_gpio(gpio);
 }
 
-static void cygnus_gpio_free(struct gpio_chip *gc, unsigned offset)
+static void iproc_gpio_free(struct gpio_chip *gc, unsigned offset)
 {
-	struct cygnus_gpio *chip = to_cygnus_gpio(gc);
+	struct iproc_gpio *chip = to_iproc_gpio(gc);
 	unsigned gpio = gc->base + offset;
 
 	if (!chip->pinmux_is_supported)
@@ -311,13 +313,13 @@ static void cygnus_gpio_free(struct gpio_chip *gc, unsigned offset)
 	pinctrl_free_gpio(gpio);
 }
 
-static int cygnus_gpio_direction_input(struct gpio_chip *gc, unsigned gpio)
+static int iproc_gpio_direction_input(struct gpio_chip *gc, unsigned gpio)
 {
-	struct cygnus_gpio *chip = to_cygnus_gpio(gc);
+	struct iproc_gpio *chip = to_iproc_gpio(gc);
 	unsigned long flags;
 
 	spin_lock_irqsave(&chip->lock, flags);
-	cygnus_set_bit(chip, CYGNUS_GPIO_OUT_EN_OFFSET, gpio, false);
+	iproc_set_bit(chip, IPROC_GPIO_OUT_EN_OFFSET, gpio, false);
 	spin_unlock_irqrestore(&chip->lock, flags);
 
 	dev_dbg(chip->dev, "gpio:%u set input\n", gpio);
@@ -325,15 +327,15 @@ static int cygnus_gpio_direction_input(struct gpio_chip *gc, unsigned gpio)
 	return 0;
 }
 
-static int cygnus_gpio_direction_output(struct gpio_chip *gc, unsigned gpio,
+static int iproc_gpio_direction_output(struct gpio_chip *gc, unsigned gpio,
 					int val)
 {
-	struct cygnus_gpio *chip = to_cygnus_gpio(gc);
+	struct iproc_gpio *chip = to_iproc_gpio(gc);
 	unsigned long flags;
 
 	spin_lock_irqsave(&chip->lock, flags);
-	cygnus_set_bit(chip, CYGNUS_GPIO_OUT_EN_OFFSET, gpio, true);
-	cygnus_set_bit(chip, CYGNUS_GPIO_DATA_OUT_OFFSET, gpio, !!(val));
+	iproc_set_bit(chip, IPROC_GPIO_OUT_EN_OFFSET, gpio, true);
+	iproc_set_bit(chip, IPROC_GPIO_DATA_OUT_OFFSET, gpio, !!(val));
 	spin_unlock_irqrestore(&chip->lock, flags);
 
 	dev_dbg(chip->dev, "gpio:%u set output, value:%d\n", gpio, val);
@@ -341,29 +343,29 @@ static int cygnus_gpio_direction_output(struct gpio_chip *gc, unsigned gpio,
 	return 0;
 }
 
-static void cygnus_gpio_set(struct gpio_chip *gc, unsigned gpio, int val)
+static void iproc_gpio_set(struct gpio_chip *gc, unsigned gpio, int val)
 {
-	struct cygnus_gpio *chip = to_cygnus_gpio(gc);
+	struct iproc_gpio *chip = to_iproc_gpio(gc);
 	unsigned long flags;
 
 	spin_lock_irqsave(&chip->lock, flags);
-	cygnus_set_bit(chip, CYGNUS_GPIO_DATA_OUT_OFFSET, gpio, !!(val));
+	iproc_set_bit(chip, IPROC_GPIO_DATA_OUT_OFFSET, gpio, !!(val));
 	spin_unlock_irqrestore(&chip->lock, flags);
 
 	dev_dbg(chip->dev, "gpio:%u set, value:%d\n", gpio, val);
 }
 
-static int cygnus_gpio_get(struct gpio_chip *gc, unsigned gpio)
+static int iproc_gpio_get(struct gpio_chip *gc, unsigned gpio)
 {
-	struct cygnus_gpio *chip = to_cygnus_gpio(gc);
-	unsigned int offset = CYGNUS_GPIO_REG(gpio,
-					      CYGNUS_GPIO_DATA_IN_OFFSET);
-	unsigned int shift = CYGNUS_GPIO_SHIFT(gpio);
+	struct iproc_gpio *chip = to_iproc_gpio(gc);
+	unsigned int offset = IPROC_GPIO_REG(gpio,
+					      IPROC_GPIO_DATA_IN_OFFSET);
+	unsigned int shift = IPROC_GPIO_SHIFT(gpio);
 
 	return !!(readl(chip->base + offset) & BIT(shift));
 }
 
-static int cygnus_get_groups_count(struct pinctrl_dev *pctldev)
+static int iproc_get_groups_count(struct pinctrl_dev *pctldev)
 {
 	return 1;
 }
@@ -372,20 +374,20 @@ static int cygnus_get_groups_count(struct pinctrl_dev *pctldev)
  * Only one group: "gpio_grp", since this local pinctrl device only performs
  * GPIO specific PINCONF configurations
  */
-static const char *cygnus_get_group_name(struct pinctrl_dev *pctldev,
+static const char *iproc_get_group_name(struct pinctrl_dev *pctldev,
 					 unsigned selector)
 {
 	return "gpio_grp";
 }
 
-static const struct pinctrl_ops cygnus_pctrl_ops = {
-	.get_groups_count = cygnus_get_groups_count,
-	.get_group_name = cygnus_get_group_name,
+static const struct pinctrl_ops iproc_pctrl_ops = {
+	.get_groups_count = iproc_get_groups_count,
+	.get_group_name = iproc_get_group_name,
 	.dt_node_to_map = pinconf_generic_dt_node_to_map_pin,
 	.dt_free_map = pinctrl_utils_dt_free_map,
 };
 
-static int cygnus_gpio_set_pull(struct cygnus_gpio *chip, unsigned gpio,
+static int iproc_gpio_set_pull(struct iproc_gpio *chip, unsigned gpio,
 				bool disable, bool pull_up)
 {
 	unsigned long flags;
@@ -393,11 +395,11 @@ static int cygnus_gpio_set_pull(struct cygnus_gpio *chip, unsigned gpio,
 	spin_lock_irqsave(&chip->lock, flags);
 
 	if (disable) {
-		cygnus_set_bit(chip, CYGNUS_GPIO_RES_EN_OFFSET, gpio, false);
+		iproc_set_bit(chip, IPROC_GPIO_RES_EN_OFFSET, gpio, false);
 	} else {
-		cygnus_set_bit(chip, CYGNUS_GPIO_PAD_RES_OFFSET, gpio,
+		iproc_set_bit(chip, IPROC_GPIO_PAD_RES_OFFSET, gpio,
 			       pull_up);
-		cygnus_set_bit(chip, CYGNUS_GPIO_RES_EN_OFFSET, gpio, true);
+		iproc_set_bit(chip, IPROC_GPIO_RES_EN_OFFSET, gpio, true);
 	}
 
 	spin_unlock_irqrestore(&chip->lock, flags);
@@ -407,18 +409,18 @@ static int cygnus_gpio_set_pull(struct cygnus_gpio *chip, unsigned gpio,
 	return 0;
 }
 
-static void cygnus_gpio_get_pull(struct cygnus_gpio *chip, unsigned gpio,
+static void iproc_gpio_get_pull(struct iproc_gpio *chip, unsigned gpio,
 				 bool *disable, bool *pull_up)
 {
 	unsigned long flags;
 
 	spin_lock_irqsave(&chip->lock, flags);
-	*disable = !cygnus_get_bit(chip, CYGNUS_GPIO_RES_EN_OFFSET, gpio);
-	*pull_up = cygnus_get_bit(chip, CYGNUS_GPIO_PAD_RES_OFFSET, gpio);
+	*disable = !iproc_get_bit(chip, IPROC_GPIO_RES_EN_OFFSET, gpio);
+	*pull_up = iproc_get_bit(chip, IPROC_GPIO_PAD_RES_OFFSET, gpio);
 	spin_unlock_irqrestore(&chip->lock, flags);
 }
 
-static int cygnus_gpio_set_strength(struct cygnus_gpio *chip, unsigned gpio,
+static int iproc_gpio_set_strength(struct iproc_gpio *chip, unsigned gpio,
 				    unsigned strength)
 {
 	void __iomem *base;
@@ -432,14 +434,14 @@ static int cygnus_gpio_set_strength(struct cygnus_gpio *chip, unsigned gpio,
 
 	if (chip->io_ctrl) {
 		base = chip->io_ctrl;
-		offset = CYGNUS_GPIO_DRV0_CTRL_OFFSET;
+		offset = IPROC_GPIO_DRV0_CTRL_OFFSET;
 	} else {
 		base = chip->base;
-		offset = CYGNUS_GPIO_REG(gpio,
-					 CYGNUS_GPIO_ASIU_DRV0_CTRL_OFFSET);
+		offset = IPROC_GPIO_REG(gpio,
+					 IPROC_GPIO_ASIU_DRV0_CTRL_OFFSET);
 	}
 
-	shift = CYGNUS_GPIO_SHIFT(gpio);
+	shift = IPROC_GPIO_SHIFT(gpio);
 
 	dev_dbg(chip->dev, "gpio:%u set drive strength:%d mA\n", gpio,
 		strength);
@@ -458,7 +460,7 @@ static int cygnus_gpio_set_strength(struct cygnus_gpio *chip, unsigned gpio,
 	return 0;
 }
 
-static int cygnus_gpio_get_strength(struct cygnus_gpio *chip, unsigned gpio,
+static int iproc_gpio_get_strength(struct iproc_gpio *chip, unsigned gpio,
 				    u16 *strength)
 {
 	void __iomem *base;
@@ -468,14 +470,14 @@ static int cygnus_gpio_get_strength(struct cygnus_gpio *chip, unsigned gpio,
 
 	if (chip->io_ctrl) {
 		base = chip->io_ctrl;
-		offset = CYGNUS_GPIO_DRV0_CTRL_OFFSET;
+		offset = IPROC_GPIO_DRV0_CTRL_OFFSET;
 	} else {
 		base = chip->base;
-		offset = CYGNUS_GPIO_REG(gpio,
-					 CYGNUS_GPIO_ASIU_DRV0_CTRL_OFFSET);
+		offset = IPROC_GPIO_REG(gpio,
+					 IPROC_GPIO_ASIU_DRV0_CTRL_OFFSET);
 	}
 
-	shift = CYGNUS_GPIO_SHIFT(gpio);
+	shift = IPROC_GPIO_SHIFT(gpio);
 
 	spin_lock_irqsave(&chip->lock, flags);
 	*strength = 0;
@@ -493,40 +495,40 @@ static int cygnus_gpio_get_strength(struct cygnus_gpio *chip, unsigned gpio,
 	return 0;
 }
 
-static int cygnus_pin_config_get(struct pinctrl_dev *pctldev, unsigned pin,
+static int iproc_pin_config_get(struct pinctrl_dev *pctldev, unsigned pin,
 				 unsigned long *config)
 {
-	struct cygnus_gpio *chip = pinctrl_dev_get_drvdata(pctldev);
+	struct iproc_gpio *chip = pinctrl_dev_get_drvdata(pctldev);
 	enum pin_config_param param = pinconf_to_config_param(*config);
-	unsigned gpio = cygnus_pin_to_gpio(pin);
+	unsigned gpio = iproc_pin_to_gpio(pin);
 	u16 arg;
 	bool disable, pull_up;
 	int ret;
 
 	switch (param) {
 	case PIN_CONFIG_BIAS_DISABLE:
-		cygnus_gpio_get_pull(chip, gpio, &disable, &pull_up);
+		iproc_gpio_get_pull(chip, gpio, &disable, &pull_up);
 		if (disable)
 			return 0;
 		else
 			return -EINVAL;
 
 	case PIN_CONFIG_BIAS_PULL_UP:
-		cygnus_gpio_get_pull(chip, gpio, &disable, &pull_up);
+		iproc_gpio_get_pull(chip, gpio, &disable, &pull_up);
 		if (!disable && pull_up)
 			return 0;
 		else
 			return -EINVAL;
 
 	case PIN_CONFIG_BIAS_PULL_DOWN:
-		cygnus_gpio_get_pull(chip, gpio, &disable, &pull_up);
+		iproc_gpio_get_pull(chip, gpio, &disable, &pull_up);
 		if (!disable && !pull_up)
 			return 0;
 		else
 			return -EINVAL;
 
 	case PIN_CONFIG_DRIVE_STRENGTH:
-		ret = cygnus_gpio_get_strength(chip, gpio, &arg);
+		ret = iproc_gpio_get_strength(chip, gpio, &arg);
 		if (ret)
 			return ret;
 		else
@@ -541,13 +543,13 @@ static int cygnus_pin_config_get(struct pinctrl_dev *pctldev, unsigned pin,
 	return -ENOTSUPP;
 }
 
-static int cygnus_pin_config_set(struct pinctrl_dev *pctldev, unsigned pin,
+static int iproc_pin_config_set(struct pinctrl_dev *pctldev, unsigned pin,
 				 unsigned long *configs, unsigned num_configs)
 {
-	struct cygnus_gpio *chip = pinctrl_dev_get_drvdata(pctldev);
+	struct iproc_gpio *chip = pinctrl_dev_get_drvdata(pctldev);
 	enum pin_config_param param;
 	u16 arg;
-	unsigned i, gpio = cygnus_pin_to_gpio(pin);
+	unsigned i, gpio = iproc_pin_to_gpio(pin);
 	int ret = -ENOTSUPP;
 
 	for (i = 0; i < num_configs; i++) {
@@ -556,25 +558,25 @@ static int cygnus_pin_config_set(struct pinctrl_dev *pctldev, unsigned pin,
 
 		switch (param) {
 		case PIN_CONFIG_BIAS_DISABLE:
-			ret = cygnus_gpio_set_pull(chip, gpio, true, false);
+			ret = iproc_gpio_set_pull(chip, gpio, true, false);
 			if (ret < 0)
 				goto out;
 			break;
 
 		case PIN_CONFIG_BIAS_PULL_UP:
-			ret = cygnus_gpio_set_pull(chip, gpio, false, true);
+			ret = iproc_gpio_set_pull(chip, gpio, false, true);
 			if (ret < 0)
 				goto out;
 			break;
 
 		case PIN_CONFIG_BIAS_PULL_DOWN:
-			ret = cygnus_gpio_set_pull(chip, gpio, false, false);
+			ret = iproc_gpio_set_pull(chip, gpio, false, false);
 			if (ret < 0)
 				goto out;
 			break;
 
 		case PIN_CONFIG_DRIVE_STRENGTH:
-			ret = cygnus_gpio_set_strength(chip, gpio, arg);
+			ret = iproc_gpio_set_strength(chip, gpio, arg);
 			if (ret < 0)
 				goto out;
 			break;
@@ -589,20 +591,20 @@ out:
 	return ret;
 }
 
-static const struct pinconf_ops cygnus_pconf_ops = {
+static const struct pinconf_ops iproc_pconf_ops = {
 	.is_generic = true,
-	.pin_config_get = cygnus_pin_config_get,
-	.pin_config_set = cygnus_pin_config_set,
+	.pin_config_get = iproc_pin_config_get,
+	.pin_config_set = iproc_pin_config_set,
 };
 
 /*
- * Cygnus GPIO controller supports some PINCONF related configurations such as
+ * Iproc GPIO controller supports some PINCONF related configurations such as
  * pull up, pull down, and drive strength, when the pin is configured to GPIO
  *
  * Here a local pinctrl device is created with simple 1-to-1 pin mapping to the
  * local GPIO pins
  */
-static int cygnus_gpio_register_pinconf(struct cygnus_gpio *chip)
+static int iproc_gpio_register_pinconf(struct iproc_gpio *chip)
 {
 	struct pinctrl_desc *pctldesc = &chip->pctldesc;
 	struct pinctrl_pin_desc *pins;
@@ -622,10 +624,10 @@ static int cygnus_gpio_register_pinconf(struct cygnus_gpio *chip)
 	}
 
 	pctldesc->name = dev_name(chip->dev);
-	pctldesc->pctlops = &cygnus_pctrl_ops;
+	pctldesc->pctlops = &iproc_pctrl_ops;
 	pctldesc->pins = pins;
 	pctldesc->npins = gc->ngpio;
-	pctldesc->confops = &cygnus_pconf_ops;
+	pctldesc->confops = &iproc_pconf_ops;
 
 	chip->pctl = pinctrl_register(pctldesc, chip->dev, chip);
 	if (IS_ERR(chip->pctl)) {
@@ -636,13 +638,13 @@ static int cygnus_gpio_register_pinconf(struct cygnus_gpio *chip)
 	return 0;
 }
 
-static void cygnus_gpio_unregister_pinconf(struct cygnus_gpio *chip)
+static void iproc_gpio_unregister_pinconf(struct iproc_gpio *chip)
 {
 	if (chip->pctl)
 		pinctrl_unregister(chip->pctl);
 }
 
-static const struct of_device_id cygnus_gpio_of_match[] = {
+static const struct of_device_id iproc_gpio_of_match[] = {
 	{ .compatible = "brcm,cygnus-ccm-gpio" },
 	{ .compatible = "brcm,cygnus-asiu-gpio" },
 	{ .compatible = "brcm,cygnus-crmu-gpio" },
@@ -650,11 +652,11 @@ static const struct of_device_id cygnus_gpio_of_match[] = {
 	{ }
 };
 
-static int cygnus_gpio_probe(struct platform_device *pdev)
+static int iproc_gpio_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct resource *res;
-	struct cygnus_gpio *chip;
+	struct iproc_gpio *chip;
 	struct gpio_chip *gc;
 	u32 ngpios;
 	int irq, ret;
@@ -696,12 +698,12 @@ static int cygnus_gpio_probe(struct platform_device *pdev)
 	gc->label = dev_name(dev);
 	gc->dev = dev;
 	gc->of_node = dev->of_node;
-	gc->request = cygnus_gpio_request;
-	gc->free = cygnus_gpio_free;
-	gc->direction_input = cygnus_gpio_direction_input;
-	gc->direction_output = cygnus_gpio_direction_output;
-	gc->set = cygnus_gpio_set;
-	gc->get = cygnus_gpio_get;
+	gc->request = iproc_gpio_request;
+	gc->free = iproc_gpio_free;
+	gc->direction_input = iproc_gpio_direction_input;
+	gc->direction_output = iproc_gpio_direction_output;
+	gc->set = iproc_gpio_set;
+	gc->get = iproc_gpio_get;
 
 	chip->pinmux_is_supported = of_property_read_bool(dev->of_node,
 							"gpio-ranges");
@@ -712,7 +714,7 @@ static int cygnus_gpio_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	ret = cygnus_gpio_register_pinconf(chip);
+	ret = iproc_gpio_register_pinconf(chip);
 	if (ret) {
 		dev_err(dev, "unable to register pinconf\n");
 		goto err_rm_gpiochip;
@@ -721,21 +723,21 @@ static int cygnus_gpio_probe(struct platform_device *pdev)
 	/* optional GPIO interrupt support */
 	irq = platform_get_irq(pdev, 0);
 	if (irq) {
-		ret = gpiochip_irqchip_add(gc, &cygnus_gpio_irq_chip, 0,
+		ret = gpiochip_irqchip_add(gc, &iproc_gpio_irq_chip, 0,
 					   handle_simple_irq, IRQ_TYPE_NONE);
 		if (ret) {
 			dev_err(dev, "no GPIO irqchip\n");
 			goto err_unregister_pinconf;
 		}
 
-		gpiochip_set_chained_irqchip(gc, &cygnus_gpio_irq_chip, irq,
-					     cygnus_gpio_irq_handler);
+		gpiochip_set_chained_irqchip(gc, &iproc_gpio_irq_chip, irq,
+					     iproc_gpio_irq_handler);
 	}
 
 	return 0;
 
 err_unregister_pinconf:
-	cygnus_gpio_unregister_pinconf(chip);
+	iproc_gpio_unregister_pinconf(chip);
 
 err_rm_gpiochip:
 	gpiochip_remove(gc);
@@ -743,16 +745,16 @@ err_rm_gpiochip:
 	return ret;
 }
 
-static struct platform_driver cygnus_gpio_driver = {
+static struct platform_driver iproc_gpio_driver = {
 	.driver = {
-		.name = "cygnus-gpio",
-		.of_match_table = cygnus_gpio_of_match,
+		.name = "iproc-gpio",
+		.of_match_table = iproc_gpio_of_match,
 	},
-	.probe = cygnus_gpio_probe,
+	.probe = iproc_gpio_probe,
 };
 
-static int __init cygnus_gpio_init(void)
+static int __init iproc_gpio_init(void)
 {
-	return platform_driver_probe(&cygnus_gpio_driver, cygnus_gpio_probe);
+	return platform_driver_probe(&iproc_gpio_driver, iproc_gpio_probe);
 }
-arch_initcall_sync(cygnus_gpio_init);
+arch_initcall_sync(iproc_gpio_init);
-- 
1.9.1

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#1279688 — Re: [PATCH v2 5/7] gpio: Rename func/macro/var to IP-block,iproc

FromLinus Walleij <linus.walleij@linaro.org>
Date2015-11-30 09:50 +0100
SubjectRe: [PATCH v2 5/7] gpio: Rename func/macro/var to IP-block,iproc
Message-ID<qAsjM-1hf-15@gated-at.bofh.it>
In reply to#1272823
On Thu, Nov 19, 2015 at 4:52 AM, Pramod Kumar <pramodku@broadcom.com> wrote:

> Change functions, macros and variables name from cygnus to IP block,
> iproc, so that it could be used in all iproc based future SoCs having
> same GPIO controller block.
>
> Signed-off-by: Pramod Kumar <pramodku@broadcom.com>
> Reviewed-by: Ray Jui <rjui@broadcom.com>
> Reviewed-by: Scott Branden <sbranden@broadcom.com>

Patch applied. Required some rebasing so check the result.

Yours,
Linus Walleij
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