Since the USB 2.0 PHYs are required with EHCI/OHCI USB drivers and
USB gadget controller supported by the DWC2 gadget driver, make it
depend on them and default to ARCH_EXYNOS as they are meant for
Exynos platforms. Also, make the sub-drivers silent options enabling
them based on the SoC platforms that they are meant to work with. This
will make life easier for end users who do not have any way knowing the
dependencies.
Signed-off-by: Sachin Kamat <sachin.kamat@samsung.com>
Reviewed-by: Jingoo Han <jg1.han@samsung.com>
Tested-by: Vivek Gautam <gautam.vivek@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Some PHYs can be powered by an external power regulator.
e.g. USB_HS PHY on DRA7 SoC. Make the PHY core support a
power regulator.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
This patch adds support for Exynos3250 SoC to Exynos2USB PHY driver.
Although Exynos3250 has only one device phy interface, the register
layout and all operations that are required to get it enabled are almost
same as on Exynos4x12. The only different is one more register
(REFCLKSEL) which need to be set and lack of MODE SWITCH register.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
8-bit delay value (0xF1) is required for GEN2 devices to be enumerated
consistently. Added an API to be called from PHY drivers to set this delay
value and called it from PIPE3 driver to set the delay value.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Roger Quadros <rogerq@ti.com>
PCIe PHY uses an external pll instead of the internal pll used by SATA
and USB3. So added support in pipe3 PHY to use external pll.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Roger Quadros <rogerq@ti.com>
The Exynos4412 USB 2.0 PHY hardware differs from the description provided
in the documentation. Some register bits have different function. This
patch fixes the defines of register bits and changes the way how phys are
powered on and off.
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Tested-by: Daniel Drake <drake@endlessm.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Make local functions static, because these are used only in this
file.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
PTR_ERR_OR_ZERO simplifies the code.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
PTR_ERR_OR_ZERO simplifies the code.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Sylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
PTR_ERR_OR_ZERO simplifies the code.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Jingoo Han <jg1.han@samsung.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Here are some small USB fixes, PHY driver fixes (they ended up in this
tree for lack of somewhere else to put them), and some new USB device
ids.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-3.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are some small USB fixes, PHY driver fixes (they ended up in this
tree for lack of somewhere else to put them), and some new USB device
ids"
* tag 'usb-3.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
phy: omap-usb2: Balance pm_runtime_enable() on probe failure and remove
phy: core: Fix error path in phy_create()
drivers: phy: phy-samsung-usb2.c: Add missing MODULE_DEVICE_TABLE
phy: omap-usb2: fix devm_ioremap_resource error detection code
phy: sun4i: depend on RESET_CONTROLLER
USB: serial: ftdi_sio: Add Infineon Triboard
USB: ftdi_sio: Add extra PID.
usb: option: Add ID for Telewell TW-LTE 4G v2
USB: cp210x: add support for Corsair usb dongle
If probe fails then we need to call pm_runtime_disable() to balance
out the previous pm_runtime_enable() call. Else it will cause
unbalanced pm_runtime_enable() call in the succeding probe call.
This anomaly was observed when the call to devm_phy_create() failed
with -EPROBE_DEFER.
Balance out the pm_runtime_enable() call in .remove() as well.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Prevent resources from being freed twice in case device_add() call
fails within phy_create(). Also use ida_simple_remove() instead of
ida_remove() as we had used ida_simple_get() to allocate the ida.
Cc: 3.13+ <stable@vger.kernel.org> # 3.13+
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Allow phy-exynos-usb2 to be autoloaded based on devicetree information.
Tested on Odroid X2 with its USB subsystem build as modules.
Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
devm_ioremap_resource returns an ERR_PTR value, not NULL, on failure.
A simplified version of the semantic match that finds this problem is as
follows:
// <smpl>
@@
expression e,e1;
statement S;
@@
*e = devm_ioremap_resource(...);
if (!e1) S
// </smpl>
Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The driver depend on the reset framework in a mandatory way. Make sure
reset_control_get is defined by adding this dependency in Kconfig
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
When NO_IOMEM is enabled (e.g. score architecture), some drivers which
need HAS_IOMEM need notice about it, or it will report related warning:
warning: (GPIO_SCH && GPIO_ICH && GPIO_VX855 && GPIO_RDC321X && IE6XX_WDT && RADIO_WL1273 && HID_SENSOR_HUB && MFD_NVEC) selects MFD_CORE which has unmet direct dependencies (HAS_IOMEM)
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The USB phy controller in the A31 differs mostly from the older controllers
because it has a clock dedicated for each phy, while the older ones were having
a single clock for all the phys.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Move the phy initialization and variables declaration to the loop itself, since
it is where it really belongs. Also remove all the temporary variables, we can
use the structure members directly.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Adding support to enable/disable VBUS controlled by a
regulator, to enable vbus supply on the port.
Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Add a new driver for the USB 3.0 PHY on Exynos5 series of SoCs.
The new driver uses the generic PHY framework and will interact
with DWC3 controller present on Exynos5 series of SoCs.
Also, created a new header file in linux/mfd/syscon/ for
Exynos5 SoCs and put the required PMU offset definitions
for the basic available PHYs.
Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
All other phy drivers use 'select', while this one is
the only one to use 'depends on'. This is not a bug, just
slightly inconsistent, so let's change it to do things the
same way as everyone else.
We may also want to turn GENERIC_PHY into a silent option
that only ever gets turned on if another driver needs it.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Matt Porter <mporter@linaro.org>
Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
The phys array is of size EXYNOS_MIPI_PHYS_NUM. Trying to access the
index EXYNOS_MIPI_PHYS_NUM should return an error.
Fixes: 069d2e26e9 "phy: Add driver for Exynos MIPI CSIS/DSIM DPHYs"
Signed-off-by: Antoine Ténart <antoine.tenart@free-electrons.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
If the license string doesn't match exactly, the module refuses to load.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
As clocks might be named differently on multiple platforms, use a generic
name in the driver and allow device tree node to specify the platform
specific clock name.
Reviewed-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
The kernel oopses in phy_lookup() due to 'phy->init_data' being NULL if we
register PHYs from a device tree probing driver and then call phy_get() on a
device that has no representation in the device tree (e.g. a PCI device).
Checking the pointer before dereferening it and skipping an interation if
it's NULL prevents this kernel oops.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
When OMAP_CONTROL_USB was renamed to OMAP_CONTROL_PHY (commit
14da699b), its dependencies were lost in the process. Nothing in the
commit message indicates that this removal was intentional, so I think
it was by accident and the dependencies should be restored.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Acked-by: Roger Quadros <rogerq@ti.com>
Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The top-level phy-samsung-usb2 driver may be configured as a
loadable module, which currently causes link errors because
of the dependency on the exynos{5250,4x12,4210}_usb2_phy_config
symbol. Solving this could be achieved by exporting these
symbols, but as the SoC-specific parts of the driver are not
currently built as modules, it seems better to just link
everything into one module and avoid the need for the export.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
These changes are mostly for ARM specific device drivers that either
don't have an upstream maintainer, or that had the maintainer ask
us to pick up the changes to avoid conflicts. A large chunk of this
are clock drivers (bcm281xx, exynos, versatile, shmobile), aside from
that, reset controllers for STi as well as a large rework of the
Marvell Orion/EBU watchdog driver are notable.
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Merge tag 'drivers-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver changes from Arnd Bergmann:
"These changes are mostly for ARM specific device drivers that either
don't have an upstream maintainer, or that had the maintainer ask us
to pick up the changes to avoid conflicts.
A large chunk of this are clock drivers (bcm281xx, exynos, versatile,
shmobile), aside from that, reset controllers for STi as well as a
large rework of the Marvell Orion/EBU watchdog driver are notable"
* tag 'drivers-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (99 commits)
Revert "dts: socfpga: Add DTS entry for adding the stmmac glue layer for stmmac."
Revert "net: stmmac: Add SOCFPGA glue driver"
ARM: shmobile: r8a7791: Fix SCIFA3-5 clocks
ARM: STi: Add reset controller support to mach-sti Kconfig
drivers: reset: stih416: add softreset controller
drivers: reset: stih415: add softreset controller
drivers: reset: Reset controller driver for STiH416
drivers: reset: Reset controller driver for STiH415
drivers: reset: STi SoC system configuration reset controller support
dts: socfpga: Add sysmgr node so the gmac can use to reference
dts: socfpga: Add support for SD/MMC on the SOCFPGA platform
reset: Add optional resets and stubs
ARM: shmobile: r7s72100: fix bus clock calculation
Power: Reset: Generalize qnap-poweroff to work on Synology devices.
dts: socfpga: Update clock entry to support multiple parents
ARM: socfpga: Update socfpga_defconfig
dts: socfpga: Add DTS entry for adding the stmmac glue layer for stmmac.
net: stmmac: Add SOCFPGA glue driver
watchdog: orion_wdt: Use %pa to print 'phys_addr_t'
drivers: cci: Export CCI PMU revision
...
- reset
- re-use qnap-poweroff driver for Synology NASs
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Merge tag 'mvebu-drivers-3.15-2' of git://git.infradead.org/linux-mvebu into next/drivers
Merge "mvebu drivers for v3.15" from Jason Cooper:
pull request #1:
- mvebu mbus
- use of_find_matching_node_and_match
- rtc
- use PTR_ERR_OR_ZERO in isl12057
- work around issue in mv where date returned is 2038
- kirkwood -> mach-mvebu
- various Kconfig oneliners to allow building kirkwood in -mvebu/
pull request #2:
- reset
- re-use qnap-poweroff driver for Synology NASs
* tag 'mvebu-drivers-3.15-2' of git://git.infradead.org/linux-mvebu:
Power: Reset: Generalize qnap-poweroff to work on Synology devices.
drivers: Enable building of Kirkwood drivers for mach-mvebu
rtc: mv: reset date if after year 2038
rtc: isl12057: use PTR_ERR_OR_ZERO to fix coccinelle warnings
bus: mvebu-mbus: make use of of_find_matching_node_and_match
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This patch adds support for the APM X-Gene SoC 15Gbps Multi-purpose PHY.
This is the physical layer interface for the corresponding host
controller. Currently, only external clock and Gen3 SATA mode
are supported.
Signed-off-by: Loc Ho <lho@apm.com>
Signed-off-by: Tuan Phan <tphan@apm.com>
Signed-off-by: Suman Tripathi <stripathi@apm.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
The OMAP_USB2 and OMAP_PIPE3 PHY devices will not be
detected if the OMAP_OCP2SCP bus driver is not present.
Make them depend on it.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Due to Errata i783, SATA breaks if its DPLL is idled. The recommeded
workaround to issue a softreset to the SATA controller doesn't seem to
work. Here we just prevent SATA DPLL from Idling and hence avoid
the issue altogether.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Limit .power_on() and .power_off() to just control the
PHY power and not the DPLL. The DPLL will be enabled
in .init() and idled in .exit().
Don't reprogram the DPLL if it has been already locked
by the bootloader. This fixes a problem with SATA, where
it fails if SATA was used by the bootloader.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
SATA PHY doesn't need 'wkupclk; and 'refclk' so don't
try to get them for SATA PHY.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
USB and SATA DPLLs need different settings. Provide
the SATA DPLL settings and use the proper DPLL settings
based on device tree node's compatible_id.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
As this driver is no longer USB specific, use generic clock names.
- Fix PLL_SD_SHIFT from 9 to 10
- Don't separate prepare/unprepare clock from enable/disable. This
ensures optimal power savings.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
The dra7-usb2 and am437-usb2 bindings have not yet been used.
Change them to be more elegant.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Rename struct omap_control_usb to struct omap_control_phy since it can
be used to control PHY of USB, SATA and PCIE. Also move the driver and
include files under *phy* and made the corresponding changes in the users
of phy-omap-control.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Add a new compatible for OMAP5 since it does not use any of the
OTG operations as of now.
HAS_SRP and SET_VBUS functionalities are used only for OMAP4.
Signed-off-by: George Cherian <george.cherian@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Enable the dra7x errata workaround for false disconnect problem
with USB2PHY. False disconnects were detected with some of the devices.
Reduce the sensitivity of the disconnect logic within the USB2PHY subsystem
to enusre these false disconnects are not registered.
[george.cherian@ti.com]
While at that, pass proper flags for each SoC's. This is a common driver
used across OMAP4,OMAP5,DRA7xx and AM437x USB2PHY.
False disconnect workaround is currently applicable for only DRA7x.
Signed-off-by: Austin Beam <austinbeam@ti.com>
Signed-off-by: George Cherian <george.cherian@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Adapt phy-omap-usb2 driver for AM437x.
- Add new comaptible "ti,am437x-usb2" for AM437x
- Pass proper data to differentiate AM437x and others.
- AM437x doesnot support set_vbus and start_srp.
Signed-off-by: George Cherian <george.cherian@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Add support for Exynos 5250. This driver is to replace the old
USB 2.0 PHY driver.
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Add a new driver for the Exynos USB 2.0 PHY. The new driver uses the generic
PHY framework. The driver includes support for the Exynos 4x10 and 4x12
SoC families.
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Adding devm_of_phy_get will allow to get phys by supplying a
pointer to the struct device_node instead of struct device.
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Previously the of_phy_get function took a struct device * and
was declared static. It was impossible to call it from
another driver and thus it was impossible to get phy defined
for a given node. The old function was renamed to _of_phy_get
and was left for internal use. of_phy_get function was added
and it was exported. The function enables to get a phy for
a given device tree node.
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
No functional change. Moved omap_usb.h from linux/usb/ to linux/phy/.
Also removed the unused members of struct omap_usb (after phy-omap-pipe3
started using it's own header file)
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Now that omap-usb2 is adapted to the new generic PHY framework,
*set_suspend* ops can be removed from omap-usb2 driver.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Adapted omap-usb3 PHY driver to Generic PHY Framework and moved phy-omap-usb3
driver in drivers/usb/phy to drivers/phy and also renamed the file to
phy-ti-pipe3 since this same driver will be used for SATA PHY and
PCIE PHY.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
