[PATCH 0/4] [v8] pinctrl: qcom: add support for sparse GPIOs
Timur Tabi
timur at codeaurora.org
Fri Dec 1 15:28:20 PST 2017
A series of patches that add support for GPIO maps that have holes in
them. That is, even though a client driver has N consecutive GPIOs,
some are just unavailable for whatever reason, and the hardware should
not be accessed for those GPIOs.
Note that this version does not address the failure of gpiod_get()
when GPIO 0 is not available. I don't know how to fix that because I
don't understand what gpiod_get() is trying to do.
Also note that I would prefer to have the call to gpiochip_available()
be inside gpiod_request(), but I don't know how to get the GPIO index
inside that function (without adding a function a parameter).
In other words, there will be a v9, but I need help.
v8:
rebased onto 4.15-rc1
fix issues raised during review of v7
Timur Tabi (4):
[v2] Revert "gpio: set up initial state from .get_direction()"
[v2] gpiolib: add bitmask for valid GPIO lines
[v7] pinctrl: qcom: disable GPIO groups with no pins
[v4] pinctrl: qcom: qdf2xxx: add support for new ACPI HID QCOM8002
drivers/gpio/gpiolib.c | 80 ++++++++++++------
drivers/pinctrl/qcom/pinctrl-msm.c | 44 ++++++++--
drivers/pinctrl/qcom/pinctrl-msm.h | 2 +
drivers/pinctrl/qcom/pinctrl-qdf2xxx.c | 145 +++++++++++++++++++++++++--------
include/linux/gpio/driver.h | 3 +
5 files changed, 207 insertions(+), 67 deletions(-)
--
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