blackfin: gpio: Remove none gpio lib code.

- Remove non gpio lib code from blackfin architecture.
- Limit the lagecy blackfin gpio driver to bf5xx processors only.
- Remove unused definition of the pint power functions.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

arch/blackfin/Kconfig

@@ -52,6 +52,9 @@ config GENERIC_BUG
 config ZONE_DMA
 	def_bool y
 
+config GENERIC_GPIO
+	def_bool y
+
 config FORCE_MAX_ZONEORDER
 	int
 	default "14"
@@ -317,6 +320,10 @@ config BF53x
 	depends on (BF531 || BF532 || BF533 || BF534 || BF536 || BF537)
 	default y
 
+config GPIO_ADI
+	def_bool y
+	depends on (BF51x || BF52x || BF53x || BF538 || BF539 || BF561)
+
 config MEM_MT48LC64M4A2FB_7E
 	bool
 	depends on (BFIN533_STAMP)

arch/blackfin/include/asm/gpio.h

@@ -25,8 +25,12 @@
 
 #ifndef __ASSEMBLY__
 
+#ifndef CONFIG_PINCTRL
+
 #include <linux/compiler.h>
-#include <linux/gpio.h>
+#include <asm/blackfin.h>
+#include <asm/portmux.h>
+#include <asm/irq_handler.h>
 
 /***********************************************************
 *
@@ -45,7 +49,6 @@
 * MODIFICATION HISTORY :
 **************************************************************/
 
-#if !BFIN_GPIO_PINT
 void set_gpio_dir(unsigned, unsigned short);
 void set_gpio_inen(unsigned, unsigned short);
 void set_gpio_polar(unsigned, unsigned short);
@@ -115,7 +118,6 @@ struct gpio_port_t {
 	unsigned short dummy16;
 	unsigned short inen;
 };
-#endif
 
 #ifdef BFIN_SPECIAL_GPIO_BANKS
 void bfin_special_gpio_free(unsigned gpio);
@@ -127,25 +129,21 @@ void bfin_special_gpio_pm_hibernate_suspend(void);
 #endif
 
 #ifdef CONFIG_PM
-int bfin_pm_standby_ctrl(unsigned ctrl);
+void bfin_gpio_pm_hibernate_restore(void);
+void bfin_gpio_pm_hibernate_suspend(void);
+int bfin_gpio_pm_wakeup_ctrl(unsigned gpio, unsigned ctrl);
+int bfin_gpio_pm_standby_ctrl(unsigned ctrl);
 
 static inline int bfin_pm_standby_setup(void)
 {
-	return bfin_pm_standby_ctrl(1);
+	return bfin_gpio_pm_standby_ctrl(1);
 }
 
 static inline void bfin_pm_standby_restore(void)
 {
-	bfin_pm_standby_ctrl(0);
+	bfin_gpio_pm_standby_ctrl(0);
 }
 
-void bfin_gpio_pm_hibernate_restore(void);
-void bfin_gpio_pm_hibernate_suspend(void);
-void bfin_pint_suspend(void);
-void bfin_pint_resume(void);
-
-# if !BFIN_GPIO_PINT
-int gpio_pm_wakeup_ctrl(unsigned gpio, unsigned ctrl);
 
 struct gpio_port_s {
 	unsigned short data;
@@ -161,7 +159,6 @@ struct gpio_port_s {
 	unsigned short reserved;
 	unsigned short mux;
 };
-# endif
 #endif /*CONFIG_PM*/
 
 /***********************************************************
@@ -178,36 +175,29 @@ struct gpio_port_s {
 *************************************************************
 * MODIFICATION HISTORY :
 **************************************************************/
-
-int bfin_gpio_request(unsigned gpio, const char *label);
-void bfin_gpio_free(unsigned gpio);
 int bfin_gpio_irq_request(unsigned gpio, const char *label);
 void bfin_gpio_irq_free(unsigned gpio);
-int bfin_gpio_direction_input(unsigned gpio);
-int bfin_gpio_direction_output(unsigned gpio, int value);
-int bfin_gpio_get_value(unsigned gpio);
-void bfin_gpio_set_value(unsigned gpio, int value);
+void bfin_gpio_irq_prepare(unsigned gpio);
+
+static inline int irq_to_gpio(unsigned irq)
+{
+	return irq - GPIO_IRQ_BASE;
+}
+#endif /* CONFIG_PINCTRL */
 
 #include <asm/irq.h>
 #include <asm/errno.h>
 
-#ifdef CONFIG_GPIOLIB
 #include <asm-generic/gpio.h>		/* cansleep wrappers */
 
 static inline int gpio_get_value(unsigned int gpio)
 {
-	if (gpio < MAX_BLACKFIN_GPIOS)
-		return bfin_gpio_get_value(gpio);
-	else
-		return __gpio_get_value(gpio);
+	return __gpio_get_value(gpio);
 }
 
 static inline void gpio_set_value(unsigned int gpio, int value)
 {
-	if (gpio < MAX_BLACKFIN_GPIOS)
-		bfin_gpio_set_value(gpio, value);
-	else
-		__gpio_set_value(gpio, value);
+	__gpio_set_value(gpio, value);
 }
 
 static inline int gpio_cansleep(unsigned int gpio)
@@ -219,113 +209,6 @@ static inline int gpio_to_irq(unsigned gpio)
 {
 	return __gpio_to_irq(gpio);
 }
-
-#else /* !CONFIG_GPIOLIB */
-
-static inline int gpio_request(unsigned gpio, const char *label)
-{
-	return bfin_gpio_request(gpio, label);
-}
-
-static inline void gpio_free(unsigned gpio)
-{
-	return bfin_gpio_free(gpio);
-}
-
-static inline int gpio_direction_input(unsigned gpio)
-{
-	return bfin_gpio_direction_input(gpio);
-}
-
-static inline int gpio_direction_output(unsigned gpio, int value)
-{
-	return bfin_gpio_direction_output(gpio, value);
-}
-
-static inline int gpio_set_debounce(unsigned gpio, unsigned debounce)
-{
-	return -EINVAL;
-}
-
-static inline int gpio_request_one(unsigned gpio, unsigned long flags, const char *label)
-{
-	int err;
-
-	err = bfin_gpio_request(gpio, label);
-	if (err)
-		return err;
-
-	if (flags & GPIOF_DIR_IN)
-		err = bfin_gpio_direction_input(gpio);
-	else
-		err = bfin_gpio_direction_output(gpio,
-			(flags & GPIOF_INIT_HIGH) ? 1 : 0);
-
-	if (err)
-		bfin_gpio_free(gpio);
-
-	return err;
-}
-
-static inline int gpio_request_array(const struct gpio *array, size_t num)
-{
-	int i, err;
-
-	for (i = 0; i < num; i++, array++) {
-		err = gpio_request_one(array->gpio, array->flags, array->label);
-		if (err)
-			goto err_free;
-	}
-	return 0;
-
-err_free:
-	while (i--)
-		bfin_gpio_free((--array)->gpio);
-	return err;
-}
-
-static inline void gpio_free_array(const struct gpio *array, size_t num)
-{
-	while (num--)
-		bfin_gpio_free((array++)->gpio);
-}
-
-static inline int __gpio_get_value(unsigned gpio)
-{
-	return bfin_gpio_get_value(gpio);
-}
-
-static inline void __gpio_set_value(unsigned gpio, int value)
-{
-	return bfin_gpio_set_value(gpio, value);
-}
-
-static inline int gpio_get_value(unsigned gpio)
-{
-	return __gpio_get_value(gpio);
-}
-
-static inline void gpio_set_value(unsigned gpio, int value)
-{
-	return __gpio_set_value(gpio, value);
-}
-
-static inline int gpio_to_irq(unsigned gpio)
-{
-	if (likely(gpio < MAX_BLACKFIN_GPIOS))
-		return gpio + GPIO_IRQ_BASE;
-
-	return -EINVAL;
-}
-
-#include <asm-generic/gpio.h>		/* cansleep wrappers */
-#endif	/* !CONFIG_GPIOLIB */
-
-static inline int irq_to_gpio(unsigned irq)
-{
-	return (irq - GPIO_IRQ_BASE);
-}
-
 #endif /* __ASSEMBLY__ */
 
 #endif /* __ARCH_BLACKFIN_GPIO_H__ */

arch/blackfin/kernel/Makefile

@@ -7,7 +7,7 @@ extra-y := vmlinux.lds
 obj-y := \
 	entry.o process.o bfin_ksyms.o ptrace.o setup.o signal.o \
 	sys_bfin.o traps.o irqchip.o dma-mapping.o flat.o \
-	fixed_code.o reboot.o bfin_gpio.o bfin_dma.o \
+	fixed_code.o reboot.o bfin_dma.o \
 	exception.o dumpstack.o
 
 ifeq ($(CONFIG_GENERIC_CLOCKEVENTS),y)
@@ -16,6 +16,7 @@ else
     obj-y += time.o
 endif
 
+obj-$(CONFIG_GPIO_ADI)               += bfin_gpio.o
 obj-$(CONFIG_DYNAMIC_FTRACE)         += ftrace.o
 obj-$(CONFIG_FUNCTION_TRACER)        += ftrace-entry.o
 obj-$(CONFIG_FUNCTION_GRAPH_TRACER)  += ftrace.o