The pinctrl blocks for Exynos7870 and Exynos7880 are similar, however in
Exynos7870, the CCORE block is actually referred to as MIF. Since
ordering happens lexically, it isn't directly compatible with
samsung,exynos78x0-pinctrl.

Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

The devicetree of Samsung devices typically have the pin controller and
GPIO bank descriptors under the same pinctrl node. In U-Boot, these are
handled by two separate drivers. It is not possible to invoke both
drivers from a single node compatible.

Bind the GPIO driver on pinctrl driver bind, with the same OF node as
the pinctrl driver. This solution is already being used in other pinctrl
drivers. The hierarchy, as represented in `dm tree`, is as follows:

  pinctrl@13750000
  |-- gpio-banks
  |   |-- gpr0-gpio-bank
  |   |-- gpr1-gpio-bank
  |   |-- gpr2-gpio-bank
  |   |-- gpr3-gpio-bank
  |   `-- gpr4-gpio-bank
  |-- sd0-bus-width1-pins
  |-- sd0-bus-width4-pins
  |-- sd0-bus-width8-pins
  `-- sd0-clk-pins

Since a bind function doesn't exist, create and add it to all pinctrl
drivers.

Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

unsigned int count is used to capture return of dev_read_string_count.
When an error occurs dev_read_string_count returns -ve, which can
hence not be handled correctly. Use int instead of unsigned int so
that errors are detected.

Fixes: 16ca80adc551 ("pinctrl: Add pinctrl driver support for Exynos7420 SoC")

Signed-off-by: Henrik Grimler <henrik@grimler.se>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

Drop all duplicate newlines. No functional change.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>

As part of bringing the master branch back in to next, we need to allow
for all of these changes to exist here.

Reported-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Tom Rini <trini@konsulko.com>

When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay
Ethernet"' I failed to notice that b4 noticed it was based on next and
so took that as the base commit and merged that part of next to master.

This reverts commit c8ffd1356d42223cbb8c86280a083cc3c93e6426, reversing
changes made to 2ee6f3a5f7550de3599faef9704e166e5dcace35.

Reported-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Tom Rini <trini@konsulko.com>

Remove <common.h> from this driver directory and when needed
add missing include files directly.

Reviewed-by: Peter Robinson <pbrobinson@gmail.com>
Signed-off-by: Tom Rini <trini@konsulko.com>

Add pinctrl support for Exynos850 SoC. It was mostly extracted from
corresponding Linux kernel code [1]. Power down modes and external
interrupt data were removed while converting the code for U-Boot, but
everything else was kept almost unchanged.

[1] drivers/pinctrl/samsung/pinctrl-exynos-arm64.c

Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Reviewed-by: Chanho Park <chanho61.park@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

Use counterpart dev_read_* functions instead of fdt* ones. It fixes
checkpatch warnings like this:

    WARNING: Use the livetree API (dev_read_...)
    #54: FILE: drivers/pinctrl/exynos/pinctrl-exynos.c:137:
        pinvals[idx] = fdtdec_get_int(fdt, node,

and also makes it possible to avoid using the global data pointer in the
driver.

No functional change.

Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

Pull some variables declared in exynos_pinctrl_set_state() into its
loop, to reduce their scope. Style commit, no functional change.

Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>