Add compatible string definitions and supported pin functions.
Signed-off-by: NIvan T. Ivanov <ivan.ivanov@linaro.org>
Acked-by: NBjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

This enables support of 'input-enable' pinconf generic property in
the pinctrl driver.
Signed-off-by: NStanimir Varbanov <svarbanov@mm-sol.com>
Acked-by: NBjorn Andersson <bjorn.andersson@sonymobile.com>
Reviewed-by: NStephen Boyd <sboyd@codeaurora.org>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

This makes the pinctrl driver to use the generic pinconf
interface. Mainly it gives us a way to use debugfs to dump
group configurations.
Signed-off-by: NStanimir Varbanov <svarbanov@mm-sol.com>
Acked-by: NBjorn Andersson <bjorn.andersson@sonymobile.com>
Reviewed-by: NStephen Boyd <sboyd@codeaurora.org>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

The .pin_config_get/set operation are not supported in qcom pinctrl
driver. As the pinconf core is smart enough it doesn't complain
about that.
Signed-off-by: NStanimir Varbanov <svarbanov@mm-sol.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

Add initial pinctrl driver to support pin configuration with
pinctrl framework for msm8916.
Signed-off-by: NJoonwoo Park <joonwoop@codeaurora.org>
Signed-off-by: NStanimir Varbanov <svarbanov@mm-sol.com>
Reviewed-by: NBjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

On newer TLMM hardware blocks the registers are spread and
we need an offsets upper than 16 bits to address them. Increase
the register offset variables to 32 bits size.
Signed-off-by: NJoonwoo Park <joonwoop@codeaurora.org>
Signed-off-by: NStanimir Varbanov <svarbanov@mm-sol.com>
Reviewed-by: NBjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

The zynq and qcom-spmi pinctrl drivers both use pin_config_item arrays
to provide extra interfaces in debugfs. This structure and the
PCONFDUMP macro are not defined if CONFIG_DEBUG_FS is turned off,
so we get build errors like:

pinctrl/qcom/pinctrl-spmi-gpio.c:139:37: error: array type has incomplete element type
 static const struct pin_config_item pmic_conf_items[ARRAY_SIZE(pmic_gpio_bindings)] = {
                                     ^
pinctrl/qcom/pinctrl-spmi-gpio.c:140:2: error: implicit declaration of function 'PCONFDUMP' [-Werror=implicit-function-declaration]
  PCONFDUMP(PMIC_GPIO_CONF_PULL_UP,  "pull up strength", NULL, true),
  ^
pinctrl/qcom/pinctrl-spmi-gpio.c:139:37: warning: 'pmic_conf_items' defined but not used [-Wunused-variable]
 static const struct pin_config_item pmic_conf_items[ARRAY_SIZE(pmic_gpio_bindings)] = {

Lacking any better idea to solve this nicely, this patch uses #ifdef
to hide the structures, just like the pinctrl core does.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

Timur reports that this code crashes if nfunctions is 0. Fix the
loop iteration to only consider valid elements of the functions
array.
Reported-by: NTimur Tabi <timur@codeaurora.org>
Cc: Pramod Gurav <pramod.gurav@smartplayin.com>
Cc: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Cc: Ivan T. Ivanov <iivanov@mm-sol.com>
Cc: Andy Gross <agross@codeaurora.org>
Fixes: 32745581 "pinctrl: qcom: Add support for reset for apq8064"
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

New pin controllers such as ACPI-based may also have custom properties
to parse, and should be able to use generic pin config. Let's make the
code compile on !OF systems and rename members a bit to underscore it
is custom parameters and not necessarily DT parameters.

This fixes a build regression for x86_64 on the zeroday kernel builds.
Reported-by: Nkbuild test robot <fengguang.wu@intel.com>
Reviewed-and-tested-by: NSoren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

Instead of the driver caring about implementation details like device
tree, just provide information about driver specific pinconf parameters
to pinconf-generic which takes care of parsing the DT.
Signed-off-by: NSoren Brinkmann <soren.brinkmann@xilinx.com>
Tested-by: NIvan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

This is the pinctrl, pinmux, pinconf and gpiolib driver for the
Qualcomm MPP sub-function blocks found in the PMIC chips.
Signed-off-by: NIvan T. Ivanov <iivanov@mm-sol.com>
Acked-by: NBjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

This is the pinctrl, pinmux, pinconf and gpiolib driver for the
Qualcomm GPIO sub-function blocks found in the PMIC chips.
Signed-off-by: NIvan T. Ivanov <iivanov@mm-sol.com>
Acked-by: NBjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

A platform_driver does not need to set an owner, it will be populated by the
driver core.
Signed-off-by: NWolfram Sang <wsa@the-dreams.de>

By converting to the restart_notifier mechanism for restart, we allow
for other mechanisms, like the watchdog, to be used for restart in the
case where PS_HOLD has failed to reset the chip.

Since this mechanism may be one of several mechanisms registered, change
the post-ps_hold write timeout to be a more reasonable 1 second instead
of 10 seconds.

Choose priority 128, as according to documentation, this mechanism "is
sufficient to restart the entire system".
Tested-by: NPramod Gurav <pramod.gurav@smartplayin.com>
Signed-off-by: NJosh Cartwright <joshc@codeaurora.org>
Acked-by: NBjorn Andersson <bjorn.andersson@sonymobile.com>
Reviewed-by: NGuenter Roeck <linux@roeck-us.net>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

Some drivers accidentally still use the return value from
gpiochip_remove(). Get rid of them so we can simplify this function
and get rid of the return value.

Cc: Abdoulaye Berthe <berthe.ab@gmail.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

Currently the value used to specify that interrupts from the gpio should
be routed to the application processor is hardcoded for all Qualcomm SoCs.
But the new APQ8084 SoC uses a different value. To resolve this, we make
this value configurable for each SoC. For all existing SoCs we continue
to use the current value, and only for APQ8084 we use the new value.
Suggested-by: NBjorn Andersson <bjorn.andersson@sonymobile.com>
Acked-by: NBjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: NGeorgi Djakov <gdjakov@mm-sol.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

This patchset adds pinctrl support for the Qualcomm APQ8084 platform.

This set of patches adds pinctrl support for the Qualcomm APQ8084 platform.
The first patch adds the pin definitions. The second patch contains the
devicetree binding documentation. The third patch adds the DT node.
The last patch makes the INTR_TARGET_PROC_APPS value configurable and
defines it for each existing SoC.

Tested on IFC6540 board.

Changes since v3:
 - Fixed the sdc valid pin values in the binding documentation - sdc2
   instead of sdc3. (suggested by Bjorn Andersson)

Changes since v2:
 - Fixed some incorrect bits and offsets. (suggested by Bjorn Andersson)
 - Updated binding documentation to follow the format of msm8960.
   (suggested by Bjorn Andersson)
 - Added fourth patch, which removes the hardcoded INTR_TARGET_PROC_APPS
   value and makes it configurable. Also we keep the current value for
   existing SoCs. (suggested by Bjorn Andersson)

Changes since v1:
 - Updated the total number of pins (suggested by Bjorn Andersson)
 - Added the missing pin info (provided by Andy Gross)
 - Updated groups and functions to be consistent with other pinctrls.
   (suggested by Andy Gross)
 - Removed unused functions, qdss and test pins. (suggested by Andy Gross)
 - Updated the documentation with the possible functions.
Reviewed-by: NAndy Gross <agross@codeaurora.org>
Acked-by: NBjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: NGeorgi Djakov <gdjakov@mm-sol.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

commit 2243a87d
"pinctrl: avoid duplicated calling enable_pinmux_setting for a pin"
removed the .disable callback from the struct pinmux_ops,
making the .enable() callback the only remaining callback.

However .enable() is a bad name as it seems to imply that a
muxing can also be disabled. Rename the callback to .set_mux()
and also take this opportunity to clean out any remaining
mentions of .disable() from the documentation.
Acked-by: NStephen Warren <swarren@nvidia.com>
Acked-by: NBjorn Andersson <bjorn.andersson@sonymobile.com>
Acked-by: NFan Wu <fwu@marvell.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

This patch adds support for reset functions to reboot the boards
with soc apq8064.

Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: "Ivan T. Ivanov" <iivanov@mm-sol.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Andy Gross <agross@codeaurora.org>
Acked-by: NBjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: NPramod Gurav <pramod.gurav@smartplayin.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

This patch releases gpiochip related resources by calling
gpiochip_remove when either of gpiochip_add_pin_range and
gpiochip_irqchip_add fails.

CC: Linus Walleij <linus.walleij@linaro.org>
CC: "Ivan T. Ivanov" <iivanov@mm-sol.com>
Acked-by: NBjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: NPramod Gurav <pramod.gurav@smartplayin.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

[linux-3.16-rc5/drivers/pinctrl/pinctrl-msm.c:145]: (style) Checking if
unsigned variable 'mux_bit' is less than zero.

    if (WARN_ON(g->mux_bit < 0))
        return -EINVAL;

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=80491Reported-by: NDavid Binderman <dcb314@hotmail.com>
Signed-off-by: NAndrey Utkin <andrey.krieger.utkin@gmail.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

Instead of relying on pinmux->disable(), make the gpio function an
explicit function for all pins that supports it.
Signed-off-by: NBjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

We have four Qualcomm-related pin control drivers, and now there
are drivers coming in for the PMICs on these systems, so let's
create a qcom subdirectory to hold all the Qualcomm stuff.
Acked-by: NIvan T. Ivanov <iivanov@mm-sol.com>
Acked-by: NBjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>