diff options
Diffstat (limited to 'drivers/pinctrl/uniphier/pinctrl-uniphier.h')
-rw-r--r-- | drivers/pinctrl/uniphier/pinctrl-uniphier.h | 49 |
1 files changed, 42 insertions, 7 deletions
diff --git a/drivers/pinctrl/uniphier/pinctrl-uniphier.h b/drivers/pinctrl/uniphier/pinctrl-uniphier.h index 6557f6a6c7..8f83ecae7d 100644 --- a/drivers/pinctrl/uniphier/pinctrl-uniphier.h +++ b/drivers/pinctrl/uniphier/pinctrl-uniphier.h @@ -8,15 +8,48 @@ #define __PINCTRL_UNIPHIER_H__ #include <linux/bitops.h> -#include <linux/bug.h> +#include <linux/build_bug.h> #include <linux/kernel.h> #include <linux/types.h> -#define UNIPHIER_PIN_ATTR_PACKED(iectrl) (iectrl) +/* drive strength control register number */ +#define UNIPHIER_PIN_DRVCTRL_SHIFT 0 +#define UNIPHIER_PIN_DRVCTRL_BITS 9 +#define UNIPHIER_PIN_DRVCTRL_MASK ((1U << (UNIPHIER_PIN_DRVCTRL_BITS)) \ + - 1) + +/* drive control type */ +#define UNIPHIER_PIN_DRV_TYPE_SHIFT ((UNIPHIER_PIN_DRVCTRL_SHIFT) + \ + (UNIPHIER_PIN_DRVCTRL_BITS)) +#define UNIPHIER_PIN_DRV_TYPE_BITS 2 +#define UNIPHIER_PIN_DRV_TYPE_MASK ((1U << (UNIPHIER_PIN_DRV_TYPE_BITS)) \ + - 1) + +/* drive control type */ +enum uniphier_pin_drv_type { + UNIPHIER_PIN_DRV_1BIT, /* 2 level control: 4/8 mA */ + UNIPHIER_PIN_DRV_2BIT, /* 4 level control: 8/12/16/20 mA */ + UNIPHIER_PIN_DRV_3BIT, /* 8 level control: 4/5/7/9/11/12/14/16 mA */ +}; + +#define UNIPHIER_PIN_DRVCTRL(x) \ + (((x) & (UNIPHIER_PIN_DRVCTRL_MASK)) << (UNIPHIER_PIN_DRVCTRL_SHIFT)) +#define UNIPHIER_PIN_DRV_TYPE(x) \ + (((x) & (UNIPHIER_PIN_DRV_TYPE_MASK)) << (UNIPHIER_PIN_DRV_TYPE_SHIFT)) -static inline unsigned int uniphier_pin_get_iectrl(unsigned long data) +#define UNIPHIER_PIN_ATTR_PACKED(drvctrl, drv_type) \ + UNIPHIER_PIN_DRVCTRL(drvctrl) | \ + UNIPHIER_PIN_DRV_TYPE(drv_type) + +static inline unsigned int uniphier_pin_get_drvctrl(unsigned int data) { - return data; + return (data >> UNIPHIER_PIN_DRVCTRL_SHIFT) & UNIPHIER_PIN_DRVCTRL_MASK; +} + +static inline unsigned int uniphier_pin_get_drv_type(unsigned int data) +{ + return (data >> UNIPHIER_PIN_DRV_TYPE_SHIFT) & + UNIPHIER_PIN_DRV_TYPE_MASK; } /** @@ -27,7 +60,8 @@ static inline unsigned int uniphier_pin_get_iectrl(unsigned long data) */ struct uniphier_pinctrl_pin { unsigned number; - unsigned long data; + const char *name; + unsigned int data; }; /** @@ -72,10 +106,11 @@ struct uniphier_pinctrl_socdata { #define UNIPHIER_PINCTRL_CAPS_MUX_4BIT BIT(0) }; -#define UNIPHIER_PINCTRL_PIN(a, b) \ +#define UNIPHIER_PINCTRL_PIN(a, b, c, d) \ { \ .number = a, \ - .data = UNIPHIER_PIN_ATTR_PACKED(b), \ + .name = b, \ + .data = UNIPHIER_PIN_ATTR_PACKED(c, d), \ } #define __UNIPHIER_PINCTRL_GROUP(grp) \ |