The arch/arm/plat-s3c/gpio-config.c file is common to pretty much all the Samsung
SoCs, so move it to arch/arm/plat-samsung
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Internal configuration option to enable the s3c specific gpio
chip tracking if the platform requires it.
-config S3C_GPIO_PULL_UPDOWN
- bool
- help
- Internal configuration to enable the correct GPIO pull helper
-
-config S3C_GPIO_PULL_DOWN
- bool
- help
- Internal configuration to enable the correct GPIO pull helper
-
-config S3C_GPIO_PULL_UP
- bool
- help
- Internal configuration to enable the correct GPIO pull helper
-
-config S3C_GPIO_CFG_S3C24XX
- bool
- help
- Internal configuration to enable S3C24XX style GPIO configuration
- functions.
-
-config S3C_GPIO_CFG_S3C64XX
- bool
- help
- Internal configuration to enable S3C64XX style GPIO configuration
- functions.
-
-config S5P_GPIO_CFG_S5PC1XX
- bool
- help
- Internal configuration to enable S5PC1XX style GPIO configuration
- functions.
-
# DMA
config S3C_DMA
obj-y += init.o
obj-y += time.o
obj-y += gpio.o
-obj-y += gpio-config.o
# DMA support
+++ /dev/null
-/* linux/arch/arm/plat-s3c/gpio-config.c
- *
- * Copyright 2008 Openmoko, Inc.
- * Copyright 2008 Simtec Electronics
- * Ben Dooks <ben@simtec.co.uk>
- * http://armlinux.simtec.co.uk/
- *
- * S3C series GPIO configuration core
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
-*/
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/gpio.h>
-#include <linux/io.h>
-
-#include <mach/gpio-core.h>
-#include <plat/gpio-cfg.h>
-#include <plat/gpio-cfg-helpers.h>
-
-int s3c_gpio_cfgpin(unsigned int pin, unsigned int config)
-{
- struct s3c_gpio_chip *chip = s3c_gpiolib_getchip(pin);
- unsigned long flags;
- int offset;
- int ret;
-
- if (!chip)
- return -EINVAL;
-
- offset = pin - chip->chip.base;
-
- local_irq_save(flags);
- ret = s3c_gpio_do_setcfg(chip, offset, config);
- local_irq_restore(flags);
-
- return ret;
-}
-EXPORT_SYMBOL(s3c_gpio_cfgpin);
-
-int s3c_gpio_setpull(unsigned int pin, s3c_gpio_pull_t pull)
-{
- struct s3c_gpio_chip *chip = s3c_gpiolib_getchip(pin);
- unsigned long flags;
- int offset, ret;
-
- if (!chip)
- return -EINVAL;
-
- offset = pin - chip->chip.base;
-
- local_irq_save(flags);
- ret = s3c_gpio_do_setpull(chip, offset, pull);
- local_irq_restore(flags);
-
- return ret;
-}
-EXPORT_SYMBOL(s3c_gpio_setpull);
-
-#ifdef CONFIG_S3C_GPIO_CFG_S3C24XX
-int s3c_gpio_setcfg_s3c24xx_banka(struct s3c_gpio_chip *chip,
- unsigned int off, unsigned int cfg)
-{
- void __iomem *reg = chip->base;
- unsigned int shift = off;
- u32 con;
-
- if (s3c_gpio_is_cfg_special(cfg)) {
- cfg &= 0xf;
-
- /* Map output to 0, and SFN2 to 1 */
- cfg -= 1;
- if (cfg > 1)
- return -EINVAL;
-
- cfg <<= shift;
- }
-
- con = __raw_readl(reg);
- con &= ~(0x1 << shift);
- con |= cfg;
- __raw_writel(con, reg);
-
- return 0;
-}
-
-int s3c_gpio_setcfg_s3c24xx(struct s3c_gpio_chip *chip,
- unsigned int off, unsigned int cfg)
-{
- void __iomem *reg = chip->base;
- unsigned int shift = off * 2;
- u32 con;
-
- if (s3c_gpio_is_cfg_special(cfg)) {
- cfg &= 0xf;
- if (cfg > 3)
- return -EINVAL;
-
- cfg <<= shift;
- }
-
- con = __raw_readl(reg);
- con &= ~(0x3 << shift);
- con |= cfg;
- __raw_writel(con, reg);
-
- return 0;
-}
-#endif
-
-#ifdef CONFIG_S3C_GPIO_CFG_S3C64XX
-int s3c_gpio_setcfg_s3c64xx_4bit(struct s3c_gpio_chip *chip,
- unsigned int off, unsigned int cfg)
-{
- void __iomem *reg = chip->base;
- unsigned int shift = (off & 7) * 4;
- u32 con;
-
- if (off < 8 && chip->chip.ngpio > 8)
- reg -= 4;
-
- if (s3c_gpio_is_cfg_special(cfg)) {
- cfg &= 0xf;
- cfg <<= shift;
- }
-
- con = __raw_readl(reg);
- con &= ~(0xf << shift);
- con |= cfg;
- __raw_writel(con, reg);
-
- return 0;
-}
-#endif /* CONFIG_S3C_GPIO_CFG_S3C64XX */
-
-#ifdef CONFIG_S3C_GPIO_PULL_UPDOWN
-int s3c_gpio_setpull_updown(struct s3c_gpio_chip *chip,
- unsigned int off, s3c_gpio_pull_t pull)
-{
- void __iomem *reg = chip->base + 0x08;
- int shift = off * 2;
- u32 pup;
-
- pup = __raw_readl(reg);
- pup &= ~(3 << shift);
- pup |= pull << shift;
- __raw_writel(pup, reg);
-
- return 0;
-}
-
-s3c_gpio_pull_t s3c_gpio_getpull_updown(struct s3c_gpio_chip *chip,
- unsigned int off)
-{
- void __iomem *reg = chip->base + 0x08;
- int shift = off * 2;
- u32 pup = __raw_readl(reg);
-
- pup >>= shift;
- pup &= 0x3;
- return (__force s3c_gpio_pull_t)pup;
-}
-#endif
Select the clock code for the clksrc implementation
used by newer systems such as the S3C64XX.
+# options for gpio configuration support
+
+config S3C_GPIO_CFG_S3C24XX
+ bool
+ help
+ Internal configuration to enable S3C24XX style GPIO configuration
+ functions.
+
+config S3C_GPIO_CFG_S3C64XX
+ bool
+ help
+ Internal configuration to enable S3C64XX style GPIO configuration
+ functions.
+
+config S5P_GPIO_CFG_S5PC1XX
+ bool
+ help
+ Internal configuration to enable S5PC1XX style GPIO configuration
+ functions.
+
+config S3C_GPIO_PULL_UPDOWN
+ bool
+ help
+ Internal configuration to enable the correct GPIO pull helper
+
+config S3C_GPIO_PULL_DOWN
+ bool
+ help
+ Internal configuration to enable the correct GPIO pull helper
+
+config S3C_GPIO_PULL_UP
+ bool
+ help
+ Internal configuration to enable the correct GPIO pull helper
+
# device definitions to compile in
config S3C_DEV_HSMMC
obj-y += clock.o
obj-y += pwm-clock.o
+obj-y += gpio-config.o
obj-$(CONFIG_SAMSUNG_CLKSRC) += clock-clksrc.o
--- /dev/null
+/* linux/arch/arm/plat-s3c/gpio-config.c
+ *
+ * Copyright 2008 Openmoko, Inc.
+ * Copyright 2008 Simtec Electronics
+ * Ben Dooks <ben@simtec.co.uk>
+ * http://armlinux.simtec.co.uk/
+ *
+ * S3C series GPIO configuration core
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/gpio.h>
+#include <linux/io.h>
+
+#include <mach/gpio-core.h>
+#include <plat/gpio-cfg.h>
+#include <plat/gpio-cfg-helpers.h>
+
+int s3c_gpio_cfgpin(unsigned int pin, unsigned int config)
+{
+ struct s3c_gpio_chip *chip = s3c_gpiolib_getchip(pin);
+ unsigned long flags;
+ int offset;
+ int ret;
+
+ if (!chip)
+ return -EINVAL;
+
+ offset = pin - chip->chip.base;
+
+ local_irq_save(flags);
+ ret = s3c_gpio_do_setcfg(chip, offset, config);
+ local_irq_restore(flags);
+
+ return ret;
+}
+EXPORT_SYMBOL(s3c_gpio_cfgpin);
+
+int s3c_gpio_setpull(unsigned int pin, s3c_gpio_pull_t pull)
+{
+ struct s3c_gpio_chip *chip = s3c_gpiolib_getchip(pin);
+ unsigned long flags;
+ int offset, ret;
+
+ if (!chip)
+ return -EINVAL;
+
+ offset = pin - chip->chip.base;
+
+ local_irq_save(flags);
+ ret = s3c_gpio_do_setpull(chip, offset, pull);
+ local_irq_restore(flags);
+
+ return ret;
+}
+EXPORT_SYMBOL(s3c_gpio_setpull);
+
+#ifdef CONFIG_S3C_GPIO_CFG_S3C24XX
+int s3c_gpio_setcfg_s3c24xx_banka(struct s3c_gpio_chip *chip,
+ unsigned int off, unsigned int cfg)
+{
+ void __iomem *reg = chip->base;
+ unsigned int shift = off;
+ u32 con;
+
+ if (s3c_gpio_is_cfg_special(cfg)) {
+ cfg &= 0xf;
+
+ /* Map output to 0, and SFN2 to 1 */
+ cfg -= 1;
+ if (cfg > 1)
+ return -EINVAL;
+
+ cfg <<= shift;
+ }
+
+ con = __raw_readl(reg);
+ con &= ~(0x1 << shift);
+ con |= cfg;
+ __raw_writel(con, reg);
+
+ return 0;
+}
+
+int s3c_gpio_setcfg_s3c24xx(struct s3c_gpio_chip *chip,
+ unsigned int off, unsigned int cfg)
+{
+ void __iomem *reg = chip->base;
+ unsigned int shift = off * 2;
+ u32 con;
+
+ if (s3c_gpio_is_cfg_special(cfg)) {
+ cfg &= 0xf;
+ if (cfg > 3)
+ return -EINVAL;
+
+ cfg <<= shift;
+ }
+
+ con = __raw_readl(reg);
+ con &= ~(0x3 << shift);
+ con |= cfg;
+ __raw_writel(con, reg);
+
+ return 0;
+}
+#endif
+
+#ifdef CONFIG_S3C_GPIO_CFG_S3C64XX
+int s3c_gpio_setcfg_s3c64xx_4bit(struct s3c_gpio_chip *chip,
+ unsigned int off, unsigned int cfg)
+{
+ void __iomem *reg = chip->base;
+ unsigned int shift = (off & 7) * 4;
+ u32 con;
+
+ if (off < 8 && chip->chip.ngpio > 8)
+ reg -= 4;
+
+ if (s3c_gpio_is_cfg_special(cfg)) {
+ cfg &= 0xf;
+ cfg <<= shift;
+ }
+
+ con = __raw_readl(reg);
+ con &= ~(0xf << shift);
+ con |= cfg;
+ __raw_writel(con, reg);
+
+ return 0;
+}
+#endif /* CONFIG_S3C_GPIO_CFG_S3C64XX */
+
+#ifdef CONFIG_S3C_GPIO_PULL_UPDOWN
+int s3c_gpio_setpull_updown(struct s3c_gpio_chip *chip,
+ unsigned int off, s3c_gpio_pull_t pull)
+{
+ void __iomem *reg = chip->base + 0x08;
+ int shift = off * 2;
+ u32 pup;
+
+ pup = __raw_readl(reg);
+ pup &= ~(3 << shift);
+ pup |= pull << shift;
+ __raw_writel(pup, reg);
+
+ return 0;
+}
+
+s3c_gpio_pull_t s3c_gpio_getpull_updown(struct s3c_gpio_chip *chip,
+ unsigned int off)
+{
+ void __iomem *reg = chip->base + 0x08;
+ int shift = off * 2;
+ u32 pup = __raw_readl(reg);
+
+ pup >>= shift;
+ pup &= 0x3;
+ return (__force s3c_gpio_pull_t)pup;
+}
+#endif
projects / firefly-linux-kernel-4.4.55.git / commitdiff