Document devicetree bindings for ROHM BD71837 PMIC MFD.
Signed-off-by: NMatti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Reviewed-by: NRob Herring <robh@kernel.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

ROHM BD71837 PMIC MFD driver providing interrupts and support
for three subsystems:
- clk
- Regulators
- input/power-key
Signed-off-by: NMatti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Reviewed-by: NEnric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Without the MFD driver, we run into a link error:

drivers/media/platform/cros-ec-cec/cros-ec-cec.o: In function `cros_ec_cec_transmit':
cros-ec-cec.c:(.text+0x474): undefined reference to `cros_ec_cmd_xfer_status'
drivers/media/platform/cros-ec-cec/cros-ec-cec.o: In function `cros_ec_cec_set_log_addr':
cros-ec-cec.c:(.text+0x60b): undefined reference to `cros_ec_cmd_xfer_status'
drivers/media/platform/cros-ec-cec/cros-ec-cec.o: In function `cros_ec_cec_adap_enable':
cros-ec-cec.c:(.text+0x77d): undefined reference to `cros_ec_cmd_xfer_status'

As we can compile-test all the dependency, the extra '| COMPILE_TEST' is
not needed to get the build coverage, and we can simply turn MFD_CROS_EC
into a hard dependency to make it build in all configurations.

Fixes: cd70de2d ("media: platform: Add ChromeOS EC CEC driver")
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

In case of Device Tree platforms, even though the Samsung PMIC sec
device is instantiated from DT, the driver is still matched through I2C
module alias.  That is because I2C core always reports an I2C module
alias instead of DT one.

This could change in the future so export DT module alias.
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

On ams AS3722, power on when AC OK is enabled by default.
Making this option as disable by default and enable only
when platform need this explicitly.
Signed-off-by: NLaxman Dewangan <ldewangan@nvidia.com>
Reviewed-by: NBibek Basu <bbasu@nvidia.com>
Tested-by: NBibek Basu <bbasu@nvidia.com>
Signed-off-by: NMarcel Ziswiler <marcel.ziswiler@toradex.com>
Acked-by: NRob Herring <robh@kernel.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The Pine64 H64 board uses an AXP806 PMIC in I2C and self-working mode.
The H64 SoC does not have the usual RSB controller.

This patch adds AXP806 to the list of devices supported in I2C mode.
In theory, all RSB-based PMICs can also be used in I2C mode.
Signed-off-by: NChen-Yu Tsai <wens@csie.org>
Reviewed-by: NIcenowy Zheng <icenowy@aosc.io>
Tested-by: NIcenowy Zheng <icenowy@aosc.io>
Acked-by: NMaxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The AXP806 can operate in a standalone "self-working" mode, in which it
is also responsible for power control of the overall system. This mode
is similar to the master mode, but the EN/PWRON pin functions as a power
button, instead of a level-triggered enable switch.

This patch adds code checking for the new "x-powers,self-working-mode"
property, and a separate mfd_cell list that includes the power button
(PEK) sub-device.
Signed-off-by: NChen-Yu Tsai <wens@csie.org>
Reviewed-by: NIcenowy Zheng <icenowy@aosc.io>
Tested-by: NIcenowy Zheng <icenowy@aosc.io>
Acked-by: NMaxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The AXP806 has three operation modes:

  - master mode: The PMIC is the first or only AXP PMIC in the system,
		 but is not in charge of power management, i.e. only
		 provides regulator functions.

  - slave mode: The PMIC is the second AXP PMIC in the system, chained
		to the first, or master, one.

  - self-working mode: The PMIC is the only AXP PMIC in the system, and
		       is in charge of power sequencing.

The functional differences between these modes can be found in the
"Control and Operation" chapter of the AXP806 (in Chinese) and AXP805
(in English) datasheets. These include how the PMIC responds to external
signals, whether it takes an external voltage reference or uses its own,
and whether the EN/PWRON pin functions as an enable switch or power button.

We already support both slave and master mode. This patch adds a property
for describing the self-working mode, and reworks the description for
the mode properties.
Signed-off-by: NChen-Yu Tsai <wens@csie.org>
Reviewed-by: NRob Herring <robh@kernel.org>
Reviewed-by: NIcenowy Zheng <icenowy@aosc.io>
Tested-by: NIcenowy Zheng <icenowy@aosc.io>
Acked-by: NMaxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

For designs where CS/ADDR pin is floating, it is useful to
allow dts to define whether to keep internal pull down or not.
Signed-off-by: NAlberto Panizzo <alberto@amarulasolutions.com>
Signed-off-by: NAnthony Brandon <anthony@amarulasolutions.com>
Acked-by: NCharles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Configuring Speaker Mode Pullup was already supported in pdata, but not
in the dts.
Signed-off-by: NAlberto Panizzo <alberto@amarulasolutions.com>
Signed-off-by: NAnthony Brandon <anthony@amarulasolutions.com>
Acked-by: NCharles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

CMD_GET_STATUS is not supported by some devices implementing
RDU2-compatible ICD as well as "legacy" devices. To account for that
fact, add code that obtains the same information (app/bootloader FW
version) using several different commands.
Signed-off-by: NAndrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

This is needed to make rave-sp-wdt driver to properly ping the
watchdog on "legacy" firmware.
Signed-off-by: NAndrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

This is needed to make rave-sp-eeprom driver work on "legacy"
firmware.
Signed-off-by: NAndrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Relying on serial port defaults for flow control and parity can result
in complete breakdown of communication with RAVE SP on some platforms
where defaults are not what we need them to be. One such case is
VF610-base ZII SPU3 board (not supported upstream). To avoid this
problem in the future, add code to explicitly configure both.
Signed-off-by: NAndrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

RAVE SP firmware covered by "legacy" variant uses 16-bit CCITT
checksum algorithm. Change the code to correctly reflect that.
Signed-off-by: NAndrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Remove unusded defines that are a leftover from earlier iterations of
the driver.
Signed-off-by: NAndrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Fixes https://bugs.linaro.org/show_bug.cgi?id=3903

LTP Functional tests have caused a bad paging request when triggering
the regmap_read_debugfs() logic of the device PMIC Hi6553 (reading
regmap/f8000000.pmic/registers file during read_all test):

Unable to handle kernel paging request at virtual address ffff0
[ffff00000984e000] pgd=0000000077ffe803, pud=0000000077ffd803,0
Internal error: Oops: 96000007 [#1] SMP
...
Hardware name: HiKey Development Board (DT)
...
Call trace:
 regmap_mmio_read8+0x24/0x40
 regmap_mmio_read+0x48/0x70
 _regmap_bus_reg_read+0x38/0x48
 _regmap_read+0x68/0x170
 regmap_read+0x50/0x78
 regmap_read_debugfs+0x1a0/0x308
 regmap_map_read_file+0x48/0x58
 full_proxy_read+0x68/0x98
 __vfs_read+0x48/0x80
 vfs_read+0x94/0x150
 SyS_read+0x6c/0xd8
 el0_svc_naked+0x30/0x34
Code: aa1e03e0 d503201f f9400280 8b334000 (39400000)

Investigations have showed that, when triggered by debugfs read()
handler, the mmio regmap logic was reading a bigger (16k) register area
than the one mapped by devm_ioremap_resource() during hi655x-pmic probe
time (4k).

This commit changes hi655x's max register, according to HW specs, to be
the same as the one declared in the pmic device in hi6220's dts, fixing
the issue.

Cc: <stable@vger.kernel.org> #v4.9 #v4.14 #v4.16 #v4.17
Signed-off-by: NRafael David Tinoco <rafael.tinoco@linaro.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Use devm_elk_get() to let Linux manage struct clk memory to avoid the following
memory leakage report:

unreferenced object 0xdd75efc0 (size 64):
  comm "systemd-udevd", pid 186, jiffies 4294945126 (age 1195.750s)
  hex dump (first 32 bytes):
    61 64 63 5f 74 73 63 5f 66 63 6b 00 00 00 00 00  adc_tsc_fck.....
    00 00 00 00 92 03 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<c0a15260>] kmemleak_alloc+0x40/0x74
    [<c0287a10>] __kmalloc_track_caller+0x198/0x388
    [<c0255610>] kstrdup+0x40/0x5c
    [<c025565c>] kstrdup_const+0x30/0x3c
    [<c0636630>] __clk_create_clk+0x60/0xac
    [<c0630918>] clk_get_sys+0x74/0x144
    [<c0630cdc>] clk_get+0x5c/0x68
    [<bf0ac540>] ti_tscadc_probe+0x260/0x468 [ti_am335x_tscadc]
    [<c06f3c0c>] platform_drv_probe+0x60/0xac
    [<c06f1abc>] driver_probe_device+0x214/0x2dc
    [<c06f1c18>] __driver_attach+0x94/0xc0
    [<c06efe2c>] bus_for_each_dev+0x90/0xa0
    [<c06f1470>] driver_attach+0x28/0x30
    [<c06f1030>] bus_add_driver+0x184/0x1ec
    [<c06f2b74>] driver_register+0xb0/0xf0
    [<c06f3b4c>] __platform_driver_register+0x40/0x54
Signed-off-by: NZumeng Chen <zumeng.chen@gmail.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

This patch fixes documentation of tps65911 because its list of
compatible regulators contains wrongly vdd3 instead of vdd2.
Signed-off-by: NChristoph Fritz <chf.fritz@googlemail.com>
Acked-by: NRob Herring <robh@kernel.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The USB completion callback does not disable interrupts while acquiring
the lock. We want to remove the local_irq_disable() invocation from
__usb_hcd_giveback_urb() and therefore it is required for the callback
handler to disable the interrupts while acquiring the lock.
The callback may be invoked either in IRQ or BH context depending on the
USB host controller.
Use the _irqsave() variant of the locking primitives.
Reviewed-by: NJohan Hovold <johan@kernel.org>
Signed-off-by: NSebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Some Arizona CODECs have a small timing window where they will
NAK an I2C transaction if it happens before the boot done bit is
set. This can cause the read of the register containing the boot
done bit to fail until it is set. Since regmap_read_poll_timeout
will abort polling if a read fails it can't be reliably used to
poll the boot done bit over I2C.

Do a partial revert of ef84f885 ("mfd: arizona: Refactor
arizona_poll_reg"), removing the regmap_read_poll_timeout but
leaving the refactoring to make the arizona_poll_reg take more
sensible arguments.

Fixes: ef84f885 ("mfd: arizona: Refactor arizona_poll_reg")
Signed-off-by: NCharles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Intel Ice Lake has the same LPSS than Intel Cannon Lake. Add the new IDs
to the list of supported devices.
Signed-off-by: NMika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

For some errors, the wm8994_device_init function was returning or
jumping to the wrong point in the error path.
Signed-off-by: NAnthony Brandon <anthony@amarulasolutions.com>
Reviewed-by: NRichard Fitzgerald <rf@opensource.cirrus.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Add const to the declaration of various local variables of type
kempld_platform_data for which the referenced value is always only
dereferenced or passed to a const parameter, to record the fact that
kempld_platform_data_generic is declared as const.

The semantic match that finds this issue is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@r@
identifier i,j;
@@
const struct i j = { ... };

@ok@
identifier r.i;
position p;
@@
const struct i@p *

@@
identifier r.i;
position p != ok.p;
@@
* struct i@p *
// </smpl>
Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Merge branches 'ib-mfd-4.19', 'ib-mfd-gpio-pinctrl-4.19', 'ib-mfd-i915-media-platform-4.19' and 'ib-mfd-regulator-4.19', tag 'ib-platform-chrome-mfd-move-cros-ec-transport-for-4.19' into ibs-for-mfd-merged

Immutable branch (mfd, chrome) due for the v4.19 window

Immutable Branch which moves the cros_ec_i2c and cros_ec_spi
transport drivers from mfd to platform/chrome. Changes in arm are a simple
rename in defconfigs. Change in input is a rename in help text.

The ChromeOS Embedded Controller can expose a CEC bus, this patch add the
driver for such feature of the Embedded Controller.

This driver is part of the cros-ec MFD and will be add as a sub-device when
the feature bit is exposed by the EC.

The controller will only handle a single logical address and handles
all the messages retries and will only expose Success or Error.

The controller will be tied to the HDMI CEC notifier by using the platform
DMI Data and the i915 device name and connector name.
Signed-off-by: NNeil Armstrong <narmstrong@baylibre.com>
Reviewed-by: NEnric Balletbo i Serra <enric.balletbo@collabora.com>
Reviewed-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The EC can expose a CEC bus, thus add the cros-ec-cec MFD sub-device
when the CEC feature bit is present.
Signed-off-by: NNeil Armstrong <narmstrong@baylibre.com>
Reviewed-by: NEnric Balletbo i Serra <enric.balletbo@collabora.com>
Acked-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The EC can expose a CEC bus, this patch adds the CEC related definitions
needed by the cros-ec-cec driver.
Signed-off-by: NNeil Armstrong <narmstrong@baylibre.com>
Tested-by: NEnric Balletbo i Serra <enric.balletbo@collabora.com>
Reviewed-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Having a 16 byte mkbp event size makes it possible to send CEC
messages from the EC to the AP directly inside the mkbp event
instead of first doing a notification and then a read.
Signed-off-by: NStefan Adolfsson <sadolfsson@chromium.org>
Signed-off-by: NNeil Armstrong <narmstrong@baylibre.com>
Tested-by: NEnric Balletbo i Serra <enric.balletbo@collabora.com>
Acked-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

This patchs adds the cec_notifier feature to the intel_hdmi part
of the i915 DRM driver. It uses the HDMI DRM connector name to differentiate
between each HDMI ports.
The changes will allow the i915 HDMI code to notify EDID and HPD changes
to an eventual CEC adapter.
Signed-off-by: NNeil Armstrong <narmstrong@baylibre.com>
Reviewed-by: NHans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: NVille Syrjälä <ville.syrjala@linux.intel.com>
Acked-by: NRodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

In non device-tree world, we can need to get the notifier by the driver
name directly and eventually defer probe if not yet created.

This patch adds a variant of the get function by using the device name
instead and will not create a notifier if not yet created.

But the i915 driver exposes at least 2 HDMI connectors, this patch also
adds the possibility to add a connector name tied to the notifier device
to form a tuple and associate different CEC controllers for each HDMI
connectors.
Signed-off-by: NNeil Armstrong <narmstrong@baylibre.com>
Reviewed-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Add support for DA9063L, which is a reduced variant of the DA9063
with less regulators and without RTC.
Signed-off-by: NMarek Vasut <marek.vasut+renesas@gmail.com>
Acked-by: NMark Brown <broonie@kernel.org>
Reviewed-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Acked-by: NSteve Twiss <stwiss.opensource@diasemi.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Move the LDOs present only on DA9063 at the end of the list, so that
the DA9063L can simply indicate less LDOs and still share the list of
regulators with DA9063.
Signed-off-by: NMarek Vasut <marek.vasut+renesas@gmail.com>
Acked-by: NMark Brown <broonie@kernel.org>
Reviewed-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The DA9063L does not contain RTC block, unlike the full DA9063.
Split the RTC block into separate mfd cell and register it only
on DA9063.
Signed-off-by: NMarek Vasut <marek.vasut+renesas@gmail.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The DA9063L does not have an RTC. Add custom IRQ map for DA9063L to
ignore the Alarm and Tick IRQs from the PMIC.
Signed-off-by: NMarek Vasut <marek.vasut+renesas@gmail.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The DA9063L does not have an RTC. Add custom regmap for DA9063L to
prevent access into that register block.
Signed-off-by: NMarek Vasut <marek.vasut+renesas@gmail.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Add type for DA9063L, which is a reduced variant of the DA9063
without RTC block and with less regulators.
Signed-off-by: NMarek Vasut <marek.vasut+renesas@gmail.com>
Reviewed-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Acked-by: NSteve Twiss <stwiss.opensource@diasemi.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The model number stored in the struct da9063 is the same for all
variants of the da9063 since it is the chip ID, which is always
the same. Replace that with a separate identifier instead, which
allows us to discern the DA9063 variants by setting the type
based on either DT match or otherwise.
Signed-off-by: NMarek Vasut <marek.vasut+renesas@gmail.com>
Acked-by: NMark Brown <broonie@kernel.org>
Reviewed-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The PMIC_DA9063 is a complete misnomer, it denotes the value of the
DA9063 chip ID register, so rename it as such. It is also the value
of chip ID register of DA9063L though, so drop the enum as all the
DA9063 "models" share the same chip ID and thus the distinction will
have to be made using DT or otherwise.
Signed-off-by: NMarek Vasut <marek.vasut+renesas@gmail.com>
Acked-by: NMark Brown <broonie@kernel.org>
Reviewed-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Acked-by: NSteve Twiss <stwiss.opensource@diasemi.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Replace DA9063_NUM_IRQ macro which is not used anywhere with
plain ARRAY_SIZE().
Signed-off-by: NMarek Vasut <marek.vasut+renesas@gmail.com>
Reviewed-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NLee Jones <lee.jones@linaro.org>