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authorLinus Walleij <linus.walleij@linaro.org>2019-11-22 14:26:15 +0100
committerLinus Walleij <linus.walleij@linaro.org>2019-11-22 14:46:52 +0100
commit41c4616bb81ff9b2efd981453f2c5d8f57d0c0b8 (patch)
treeae36532742ecfb16ac64eb371e9a6ea3a310151c /drivers/gpio
parent4e29b70d54376f795285bc337c9ebf7439e374c6 (diff)
downloadlinux-41c4616bb81ff9b2efd981453f2c5d8f57d0c0b8.tar.bz2
gpio: Add TODO item for regmap helper
Add a TODO item for a generic MMIO regmap helper. Suggested-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Reviewed-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio')
-rw-r--r--drivers/gpio/TODO4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpio/TODO b/drivers/gpio/TODO
index 9c048f10c9ad..76f8c7ff18ff 100644
--- a/drivers/gpio/TODO
+++ b/drivers/gpio/TODO
@@ -80,6 +80,10 @@ Work items:
- Look over and identify any remaining easily converted drivers and
dry-code conversions to MMIO GPIO for maintainers to test
+- Expand the MMIO GPIO or write a new library for regmap-based I/O
+ helpers for GPIO drivers on regmap that simply use offsets
+ 0..n in some register to drive GPIO lines
+
- Expand the MMIO GPIO or write a new library for port-mapped I/O
helpers (x86 inb()/outb()) and convert port-mapped I/O drivers to use
this with dry-coding and sending to maintainers to test