diff options
Diffstat (limited to 'drivers/pinctrl/intel/pinctrl-intel.h')
| -rw-r--r-- | drivers/pinctrl/intel/pinctrl-intel.h | 27 |
1 files changed, 20 insertions, 7 deletions
diff --git a/drivers/pinctrl/intel/pinctrl-intel.h b/drivers/pinctrl/intel/pinctrl-intel.h index c6f066f6d3fb..cc78c483518f 100644 --- a/drivers/pinctrl/intel/pinctrl-intel.h +++ b/drivers/pinctrl/intel/pinctrl-intel.h @@ -53,8 +53,7 @@ struct intel_function { * @reg_num: GPI_IS register number * @base: Starting pin of this group * @size: Size of this group (maximum is 32). - * @gpio_base: Starting GPIO base of this group (%0 if matches with @base, - * and %-1 if no GPIO mapping should be created) + * @gpio_base: Starting GPIO base of this group * @padown_num: PAD_OWN register number (assigned by the core driver) * * If pad groups of a community are not the same size, use this structure @@ -69,6 +68,19 @@ struct intel_padgroup { }; /** + * enum - Special treatment for GPIO base in pad group + * + * @INTEL_GPIO_BASE_ZERO: force GPIO base to be 0 + * @INTEL_GPIO_BASE_NOMAP: no GPIO mapping should be created + * @INTEL_GPIO_BASE_MATCH: matches with starting pin number + */ +enum { + INTEL_GPIO_BASE_ZERO = -2, + INTEL_GPIO_BASE_NOMAP = -1, + INTEL_GPIO_BASE_MATCH = 0, +}; + +/** * struct intel_community - Intel pin community description * @barno: MMIO BAR number where registers for this community reside * @padown_offset: Register offset of PAD_OWN register from @regs. If %0 @@ -82,20 +94,20 @@ struct intel_padgroup { * @ie_offset: Register offset of GPI_IE from @regs. * @features: Additional features supported by the hardware * @pin_base: Starting pin of pins in this community + * @npins: Number of pins in this community * @gpp_size: Maximum number of pads in each group, such as PADCFGLOCK, - * HOSTSW_OWN, GPI_IS, GPI_IE, etc. Used when @gpps is %NULL. + * 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. - * @npins: Number of pins in this community * @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 * @regs: Community specific common registers (reserved for core driver) * @pad_regs: Community specific pad registers (reserved for core driver) * - * Most 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 + * In some of 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. @@ -109,12 +121,13 @@ struct intel_community { unsigned int ie_offset; unsigned int features; unsigned int pin_base; + size_t npins; unsigned int gpp_size; unsigned int gpp_num_padown_regs; - size_t npins; const struct intel_padgroup *gpps; size_t ngpps; const unsigned int *pad_map; + /* Reserved for the core driver */ void __iomem *regs; void __iomem *pad_regs; |