Commit 9bd59157 authored Apr 13, 2020 by Andy Shevchenko

pinctrl: intel: Introduce new flag to force GPIO base to be 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>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>

parent d4b41f8b

drivers/pinctrl/intel/pinctrl-intel.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -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;

drivers/pinctrl/intel/pinctrl-intel.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -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,
		};