| Message ID | 20200413111825.89866-5-andriy.shevchenko@linux.intel.com |
|---|---|
| State | New |
| Headers | show |
| Series | [v2,1/6] pinctrl: intel: Introduce common flags for GPIO mapping scheme | expand |
On Mon, Apr 13, 2020 at 02:18:24PM +0300, Andy Shevchenko wrote: > In some cases not the first group would like to have GPIO base to be 0. > It's not possible right now due to 0 has special meaning already. Thus, > introduce a new flag to allow drivers to force GPIO base to be 0 on > a certain group. It's assumed that it can be only one group per device > with such flag enabled. > > Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
diff --git a/drivers/pinctrl/intel/pinctrl-intel.c b/drivers/pinctrl/intel/pinctrl-intel.c index a1b286dc7008..6a274e20d926 100644 --- a/drivers/pinctrl/intel/pinctrl-intel.c +++ b/drivers/pinctrl/intel/pinctrl-intel.c @@ -1281,6 +1281,9 @@ static int intel_pinctrl_add_padgroups(struct intel_pinctrl *pctrl, case INTEL_GPIO_BASE_MATCH: gpps[i].gpio_base = gpps[i].base; break; + case INTEL_GPIO_BASE_ZERO: + gpps[i].gpio_base = 0; + break; case INTEL_GPIO_BASE_NOMAP: default: break; diff --git a/drivers/pinctrl/intel/pinctrl-intel.h b/drivers/pinctrl/intel/pinctrl-intel.h index 89f38fae6da7..87fc0555ef90 100644 --- a/drivers/pinctrl/intel/pinctrl-intel.h +++ b/drivers/pinctrl/intel/pinctrl-intel.h @@ -70,10 +70,12 @@ 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, };
In some cases not the first group would like to have GPIO base to be 0. It's not possible right now due to 0 has special meaning already. Thus, introduce a new flag to allow drivers to force GPIO base to be 0 on a certain group. It's assumed that it can be only one group per device with such flag enabled. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> --- v2: new patch drivers/pinctrl/intel/pinctrl-intel.c | 3 +++ drivers/pinctrl/intel/pinctrl-intel.h | 2 ++ 2 files changed, 5 insertions(+)