diff options
Diffstat (limited to 'drivers/pinctrl/intel/pinctrl-intel.h')
| -rw-r--r-- | drivers/pinctrl/intel/pinctrl-intel.h | 97 |
1 files changed, 69 insertions, 28 deletions
diff --git a/drivers/pinctrl/intel/pinctrl-intel.h b/drivers/pinctrl/intel/pinctrl-intel.h index 65628423bf63..c1520797f895 100644 --- a/drivers/pinctrl/intel/pinctrl-intel.h +++ b/drivers/pinctrl/intel/pinctrl-intel.h @@ -10,11 +10,11 @@ #ifndef PINCTRL_INTEL_H #define PINCTRL_INTEL_H +#include <linux/array_size.h> #include <linux/bits.h> #include <linux/compiler_types.h> #include <linux/gpio/driver.h> #include <linux/irq.h> -#include <linux/kernel.h> #include <linux/pm.h> #include <linux/pinctrl/pinctrl.h> #include <linux/spinlock_types.h> @@ -36,21 +36,19 @@ struct intel_pingroup { /** * struct intel_function - Description about a function - * @name: Name of the function - * @groups: An array of groups for this function - * @ngroups: Number of groups in @groups + * @func: Generic data of the pin function (name and groups of pins) */ struct intel_function { - const char *name; - const char * const *groups; - size_t ngroups; + struct pinfunction func; }; +#define INTEL_PINCTRL_MAX_GPP_SIZE 32 + /** * struct intel_padgroup - Hardware pad group information * @reg_num: GPI_IS register number * @base: Starting pin of this group - * @size: Size of this group (maximum is 32). + * @size: Size of this group (maximum is %INTEL_PINCTRL_MAX_GPP_SIZE). * @gpio_base: Starting GPIO base of this group * @padown_num: PAD_OWN register number (assigned by the core driver) * @@ -78,6 +76,15 @@ enum { INTEL_GPIO_BASE_MATCH = 0, }; +/* Initialise struct intel_padgroup */ +#define INTEL_GPP(r, s, e, g) \ + { \ + .reg_num = (r), \ + .base = (s), \ + .size = ((e) - (s) + 1), \ + .gpio_base = (g), \ + } + /** * struct intel_community - Intel pin community description * @barno: MMIO BAR number where registers for this community reside @@ -96,8 +103,7 @@ enum { * @gpp_size: Maximum number of pads in each group, such as PADCFGLOCK, * HOSTSW_OWN, GPI_IS, GPI_IE. Used when @gpps is %NULL. * @gpp_num_padown_regs: Number of pad registers each pad group consumes at - * minimum. Use %0 if the number of registers can be - * determined by the size of the group. + * minimum. Used when @gpps is %NULL. * @gpps: Pad groups if the controller has variable size pad groups * @ngpps: Number of pad groups in this community * @pad_map: Optional non-linear mapping of the pads @@ -106,11 +112,13 @@ enum { * @regs: Community specific common registers (reserved for core driver) * @pad_regs: Community specific pad registers (reserved for core driver) * - * In some of Intel GPIO host controllers this driver supports each pad group + * In older Intel GPIO host controllers, this driver supports, each pad group * is of equal size (except the last one). In that case the driver can just - * fill in @gpp_size field and let the core driver to handle the rest. If - * the controller has pad groups of variable size the client driver can - * pass custom @gpps and @ngpps instead. + * fill in @gpp_size and @gpp_num_padown_regs fields and let the core driver + * to handle the rest. + * + * In newer Intel GPIO host controllers each pad group is of variable size, + * so the client driver can pass custom @gpps and @ngpps instead. */ struct intel_community { unsigned int barno; @@ -143,6 +151,28 @@ struct intel_community { #define PINCTRL_FEATURE_BLINK BIT(4) #define PINCTRL_FEATURE_EXP BIT(5) +#define __INTEL_COMMUNITY(b, s, e, g, n, gs, gn, soc) \ + { \ + .barno = (b), \ + .padown_offset = soc ## _PAD_OWN, \ + .padcfglock_offset = soc ## _PADCFGLOCK, \ + .hostown_offset = soc ## _HOSTSW_OWN, \ + .is_offset = soc ## _GPI_IS, \ + .ie_offset = soc ## _GPI_IE, \ + .gpp_size = (gs), \ + .gpp_num_padown_regs = (gn), \ + .pin_base = (s), \ + .npins = ((e) - (s) + 1), \ + .gpps = (g), \ + .ngpps = (n), \ + } + +#define INTEL_COMMUNITY_GPPS(b, s, e, g, soc) \ + __INTEL_COMMUNITY(b, s, e, g, ARRAY_SIZE(g), 0, 0, soc) + +#define INTEL_COMMUNITY_SIZE(b, s, e, gs, gn, soc) \ + __INTEL_COMMUNITY(b, s, e, NULL, 0, gs, gn, soc) + /** * PIN_GROUP - Declare a pin group * @n: Name of the group @@ -158,11 +188,13 @@ struct intel_community { .modes = __builtin_choose_expr(__builtin_constant_p((m)), NULL, (m)), \ } -#define FUNCTION(n, g) \ - { \ - .name = (n), \ - .groups = (g), \ - .ngroups = ARRAY_SIZE((g)), \ +#define PIN_GROUP_GPIO(n, p, m) \ + PIN_GROUP(n, p, m), \ + PIN_GROUP(n "_gpio", p, 0) + +#define FUNCTION(n, g) \ + { \ + .func = PINCTRL_PINFUNCTION((n), (g), ARRAY_SIZE(g)), \ } /** @@ -233,18 +265,27 @@ struct intel_pinctrl { int irq; }; +int intel_pinctrl_probe(struct platform_device *pdev, + const struct intel_pinctrl_soc_data *soc_data); + int intel_pinctrl_probe_by_hid(struct platform_device *pdev); int intel_pinctrl_probe_by_uid(struct platform_device *pdev); -#ifdef CONFIG_PM_SLEEP -int intel_pinctrl_suspend_noirq(struct device *dev); -int intel_pinctrl_resume_noirq(struct device *dev); -#endif +extern const struct dev_pm_ops intel_pinctrl_pm_ops; + +const struct intel_community *intel_get_community(const struct intel_pinctrl *pctrl, + unsigned int pin); + +int intel_gpio_add_pin_ranges(struct gpio_chip *gc); + +int intel_get_groups_count(struct pinctrl_dev *pctldev); +const char *intel_get_group_name(struct pinctrl_dev *pctldev, unsigned int group); +int intel_get_group_pins(struct pinctrl_dev *pctldev, unsigned int group, + const unsigned int **pins, unsigned int *npins); -#define INTEL_PINCTRL_PM_OPS(_name) \ -const struct dev_pm_ops _name = { \ - SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(intel_pinctrl_suspend_noirq, \ - intel_pinctrl_resume_noirq) \ -} +int intel_get_functions_count(struct pinctrl_dev *pctldev); +const char *intel_get_function_name(struct pinctrl_dev *pctldev, unsigned int function); +int intel_get_function_groups(struct pinctrl_dev *pctldev, unsigned int function, + const char * const **groups, unsigned int * const ngroups); #endif /* PINCTRL_INTEL_H */ |