Add PFC support for the r8a7791 SoC V2 including pin groups for
on-chip devices such as MSIOF, SCIF, USB, MMC, SDHI, DU.
Signed-off-by: NHisashi Nakamura <hisashi.nakamura.ak@renesas.com>
Signed-off-by: NKunihito Higashiyama <kunihito.higashiyama.ur@renesas.com>
Signed-off-by: NYoshikazu Fujikawa <yoshikazu.fujikawa.ue@renesas.com>
Signed-off-by: NNobuyuki HIRAI <nobuyuki.hirai.xe@renesas.com>
Signed-off-by: NShinobu Uehara <shinobu.uehara.xc@renesas.com>
Signed-off-by: NKoji Matsuoka <koji.matsuoka.xm@renesas.com>
Signed-off-by: NRyo Kataoka <ryo.kataoka.wt@renesas.com>
[damm@opensource.se: Forward ported to upstream, minor fixes]
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

Add CAN data and clock pin groups to R8A7778 PFC driver.
Signed-off-by: NSergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

There are four I2C interfaces on r8a7790, each of them can be connected to
one of the two respective I2C controllers, e.g. interface #0 can be
configured to work with I2C0 or with IIC0. Additionally some of those
interfaces can also use one of several pin sets. Interface #3 is special,
because it can be used in automatic mode for DVFS. It only has one set
of pins available and those pins cannot be used for anything else, they
also lack the GPIO function.

This patch uses the sh-pfc ability to configure pins, not associated with
GPIOs and adds support for I2C3 to the r8a7790 PFC set up.
Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

Adds pinmux for i2c bus 1 and 2. (Pins for 0 and 3 are not multiplexed.)
Signed-off-by: NUlrich Hecht <ulrich.hecht@gmail.com>
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
Signed-off-by: NJingoo Han <jg1.han@samsung.com>
Acked-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

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: NSherman Yin <syin@broadcom.com>
Reviewed-by: NChristian Daudt <csd@broadcom.com>
Reviewed-by: NMatt Porter <matt.porter@linaro.org>
Tested-by: NStephen Warren <swarren@nvidia.com>
Acked-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

Name the DU clock input 1 consistently with clock inputs 0 and 2.
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

Signed-off-by: NShinobu Uehara <shinobu.uehara.xc@renesas.com>
Signed-off-by: NRyo Kataoka <ryo.kataoka.wt@renesas.com>
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

Signed-off-by: NShinobu Uehara <shinobu.uehara.xc@renesas.com>
Signed-off-by: NShinya Kuribayashi <shinya.kuribayashi.px@renesas.com>
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

Signed-off-by: NKunihito Higashiyama <kunihito.higashiyama.ur@renesas.com>
Signed-off-by: NShinya Kuribayashi <shinya.kuribayashi.px@renesas.com>
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

Navigating through the source code is hard enough without having to
manually search for groups and functions.
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

Fix erroneous entries in the pinmux configuration tables that affect
HSCIF, I2C, LBSC, SCIF, SSI and VIN operation.
Signed-off-by: NShinya Kuribayashi <shinya.kuribayashi.px@renesas.com>
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

Update the pinmux configuration tables to support the SCIF2 pins
(TX2/TX2_B, RX2/RX2_B, SCK2).
Signed-off-by: NShinya Kuribayashi <shinya.kuribayashi.px@renesas.com>
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

Update the pinmux configuration tables to support the TCLK1 pin.
Signed-off-by: NShinya Kuribayashi <shinya.kuribayashi.px@renesas.com>
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

The SCIFA2 RXD_B and HRX0_C pins have their pinmux configuration data
swapped, fix it.
Signed-off-by: NShinya Kuribayashi <shinya.kuribayashi.px@renesas.com>
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

The pins have been removed from the datasheet, remove them here as well.
Signed-off-by: NShinya Kuribayashi <shinya.kuribayashi.px@renesas.com>
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

The pins have been removed from the datasheet, remove them here as well.
Signed-off-by: NShinya Kuribayashi <shinya.kuribayashi.px@renesas.com>
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

The pins have been removed from the datasheet, remove them here as well.
Signed-off-by: NShinya Kuribayashi <shinya.kuribayashi.px@renesas.com>
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

The RTS/CTS pins have been renamed in the datasheet, rename them here as
well.
Signed-off-by: NShinya Kuribayashi <shinya.kuribayashi.px@renesas.com>
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

The I2C pins have been renamed in the datasheet, rename them here as
well.
Signed-off-by: NShinya Kuribayashi <shinya.kuribayashi.px@renesas.com>
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

Add all I2C pin groups to R8A7779 PFC driver.
Signed-off-by: NPhil Edworthy <phil.edworthy@renesas.com>
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

The macros expand to irq_pin() calls and where most probably introduced
from a copy&paste of the sh7372 PFC data. Replace them with irq_pin().
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: NMagnus Damm <damm@opensource.se>

The mach/irqs.h header is included only to get the evt2irq macro
definition. The macro is defined in linux/sh_intc.h, include it directly
instead of the mach-specific header.
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: NMagnus Damm <damm@opensource.se>

The SoC-specific mach/<soc>.h headers are included needlesly. Don't
include them.
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: NMagnus Damm <damm@opensource.se>

Pins with selectable functions but without a GPIO port can't be named
PORT_# or GP_#_#. Add a SH_PFC_PIN_NAMED macro to declare such pins in
the pinmux pins array, naming them with the PIN_ prefix followed by the
pin physical position.

In order to make sure not to register those pins as GPIOs, add a
SH_PFC_PIN_CFG_NO_GPIO pin flag to denote pins without a GPIO port.
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: NYusuke Goda <yusuke.goda.sx@renesas.com>

Remove the manually specified ranges from PFC SoC data and compute the
ranges automatically. This prevents ranges from being out-of-sync with
pins definitions.
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: NYusuke Goda <yusuke.goda.sx@renesas.com>

The field contains the number of pins with an associated GPIO port. This
is currently equal to the total number of pins but will be modified when
adding support for pins without a GPIO port. Rename the field
accordingly.
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: NYusuke Goda <yusuke.goda.sx@renesas.com>

The pin number is usually equal to the GPIO number but can differ when
GPIO numbering is sparse.
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: NYusuke Goda <yusuke.goda.sx@renesas.com>

The PORT_1 macro invokes a macro passed as a parameter. Pass the pin
number down to that macro at the bottom of the call stack. This will be
used to compute the pin ranges automatically.
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: NYusuke Goda <yusuke.goda.sx@renesas.com>

Pass down the port number down to the PORT_1 macro. The port number will
be used to compute the pin ranges automatically.
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: NYusuke Goda <yusuke.goda.sx@renesas.com>

The PINMUX_GPIO macro takes a port name and a data mark, respectively of
the form GPIO_name and name_DATA. Modify the macro to take the name as a
single argument and derive the port name and data mark from it.
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: NYusuke Goda <yusuke.goda.sx@renesas.com>

Unlike all other PFC SoC data, the shx3 data prefix all static symbols
with shx3_. Remove the prefix to be consistent with the other source
files.
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

The SoC has a bank-style PFC. Replace the custom-defined macros with
common macros from sh-pfc.h.
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

Move the pin definition macros to a common header file.
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: NYusuke Goda <yusuke.goda.sx@renesas.com>

Move macros defined in several SoC data files to a common location and
document them.
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: NYusuke Goda <yusuke.goda.sx@renesas.com>

The gpio_get_data_reg() and gpio_setup_data_reg() functions both take an
argument named gpio. The argument contains a GPIO offset for the first
function and a pin index for the second one. Rename them to offset and
idx respectively to match the rest of the code.
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: NYusuke Goda <yusuke.goda.sx@renesas.com>

The typedef only conceals the real variable type without bringing any
additional value (see Documentation/CodingStyle, section 5.b). Moreover,
it polutes the pinmux namespace. Replace it with the integer type it
used to hide.
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: NYusuke Goda <yusuke.goda.sx@renesas.com>