diff options
Diffstat (limited to 'drivers/hte')
| -rw-r--r-- | drivers/hte/hte-tegra194.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/hte/hte-tegra194.c b/drivers/hte/hte-tegra194.c index 6fe6897047ac..9fd3c00ff695 100644 --- a/drivers/hte/hte-tegra194.c +++ b/drivers/hte/hte-tegra194.c @@ -407,12 +407,15 @@ static int tegra_hte_line_xlate(struct hte_chip *gc, return -EINVAL; /* + * GPIO consumers can access GPIOs in two ways: * - * There are two paths GPIO consumers can take as follows: - * 1) The consumer (gpiolib-cdev for example) which uses GPIO global - * number which gets assigned run time. - * 2) The consumer passing GPIO from the DT which is assigned - * statically for example by using TEGRA194_AON_GPIO gpio DT binding. + * 1) Using the global GPIO numberspace. + * + * This is the old, now DEPRECATED method and should not be used in + * new code. TODO: Check if tegra is even concerned by this. + * + * 2) Using GPIO descriptors that can be assigned to consumer devices + * using device-tree, ACPI or lookup tables. * * The code below addresses both the consumer use cases and maps into * HTE/GTE namespace. |