When setting pin configuration in the pinctrl framework, pin_config_set() or
pin_config_group_set() is called in a loop to set one configuration at a time
for the specified pin or group.
This patch 1) removes the loop and 2) changes the API to pass the whole pin
config array to the driver. It is now up to the driver to loop through the
configs. This allows the driver to potentially combine configs and reduce the
number of writes to pin config registers.
All c files changed have been build-tested to verify the change compiles and
that the corresponding .o is successfully generated.
Signed-off-by: Sherman Yin <syin@broadcom.com>
Reviewed-by: Christian Daudt <csd@broadcom.com>
Reviewed-by: Matt Porter <matt.porter@linaro.org>
Tested-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
If (b->pin_base + b->nr_pins - 1) < pin is true, pin >= b->pin_base is always
true because b->nr_pins is never less than 0.
Thus this patch simplify the equation.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This is a DT only driver and rockchip_pinctrl_dt_match is always compiled in.
Thus remove of_match_ptr macro.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Fix below build error if !PINMUX.
CC drivers/pinctrl/pinctrl-palmas.o
drivers/pinctrl/pinctrl-palmas.c:741:21: error: variable 'palmas_pinmux_ops' has initializer but incomplete type
drivers/pinctrl/pinctrl-palmas.c:742:2: error: unknown field 'get_functions_count' specified in initializer
drivers/pinctrl/pinctrl-palmas.c:742:2: warning: excess elements in struct initializer [enabled by default]
drivers/pinctrl/pinctrl-palmas.c:742:2: warning: (near initialization for 'palmas_pinmux_ops') [enabled by default]
drivers/pinctrl/pinctrl-palmas.c:743:2: error: unknown field 'get_function_name' specified in initializer
drivers/pinctrl/pinctrl-palmas.c:743:2: warning: excess elements in struct initializer [enabled by default]
drivers/pinctrl/pinctrl-palmas.c:743:2: warning: (near initialization for 'palmas_pinmux_ops') [enabled by default]
drivers/pinctrl/pinctrl-palmas.c:744:2: error: unknown field 'get_function_groups' specified in initializer
drivers/pinctrl/pinctrl-palmas.c:744:2: warning: excess elements in struct initializer [enabled by default]
drivers/pinctrl/pinctrl-palmas.c:744:2: warning: (near initialization for 'palmas_pinmux_ops') [enabled by default]
drivers/pinctrl/pinctrl-palmas.c:745:2: error: unknown field 'enable' specified in initializer
drivers/pinctrl/pinctrl-palmas.c:745:2: warning: excess elements in struct initializer [enabled by default]
drivers/pinctrl/pinctrl-palmas.c:745:2: warning: (near initialization for 'palmas_pinmux_ops') [enabled by default]
make[2]: *** [drivers/pinctrl/pinctrl-palmas.o] Error 1
make[1]: *** [drivers/pinctrl] Error 2
make: *** [drivers] Error 2
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This one is missed in commit 42fed7ba "pinctrl: move subsystem mutex to
pinctrl_dev struct".
I think this fixes the race between pin_free() and pin_request() calls.
It protects accessing the members of pctldev->desc.
(e.g. update desc->mux_usecount, desc->gpio_owner, desc->mux_owner, etc)
Current code grabs pctldev->mutex before calling pinmux_free_gpio(),
but did not grab the mutex while calling pinmux_request_gpio().
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Pin control utility functions provides the function for creating
map lists.
In place of implementing APIs locally in Tegra pin control driver
for creating map lists, use the utility functions. This reduces
the code size and avoid duplication.
Changes from V1:
- Rebased change on top of V1.
- Use pinctrl_utils_dt_free_map
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Add support to pass the config type like GROUP or PIN when using
the utils or generic pin configuration APIs. This will make the
APIs more generic.
Added additional inline APIs such that it can be use directly as
callback for the pinctrl_ops.
Changes from V1:
- Remove separate implementation for pins and group for
pinctrl_utils_dt_free_map and improve this function
to support both i.e. PINS and GROUPs.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Calling pinctrl_register() means that the driver is fully initialized
and might accept pinmux/pinconf requests, so pin groups must be parsed
before.
This patch fixes this problem by moving device tree parsing before call
to pinctrl_register(). In addition, this fixes support for hogs on
pin controllers handled by pinctrl-samsung driver.
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The symbol SPEAr310_pinctrl_of_match does not exist at all. Fix it.
We didn't hit the compile error because this driver can only be built-in now.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The Allwinner A20 is pin-compatible with the older A10, so the two pin
set are quite similar. However, since the A20 has new features, we can't
just use the A10 pin set as is, and we need to define our own for the
A20.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The Allwinner A31 SoC uses the same IP than the one found in the
A10/A13, with only different pins. Add the pins and the associated
functions found in the A31.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The implementation in pinctrl_register_one_pin() ensures pindesc->name is always
not NULL before insert the pindesc to radix tree.
If the desc return from pin_desc_get is not NULL, desc->name is always not NULL.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
the old codes defined uart0_nostreamctrl_pins, but missed pingroup
and padmux definition for it. this patch fixes it.
Signed-off-by: Qipan Li <Qipan.Li@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The i.MX pinctrl driver uses 5 different arrays for storing the
informations for pins. This requires five allocations. Instead,
use a struct type which is more cache friendly, readable and
requires less allocations. One array of integers is still needed
since the pinctrl framework forces us to maintain it.
This also adds checks whether the allocations are succesful which
were missing.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Sherman Yin
Axel Lin
Sascha Hauer
Laxman Dewangan
Tomasz Figa
Mark Brown
Maxime Ripard
Qipan Li