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* bugfix i.mx6 pwm: prevent overflow of period_c * duty_nsBrecht Neyrinck2015-05-15-1/+1
| | | | | | | Prevent overflow by casting duty_ns to ull first. This bug came up when trying to create a 200 Hz PWM Signed-off-by: Brecht Neyrinck <bnrn@psicontrol.com> Acked-by: Heiko Schocher<hs@denx.de>
* sandbox: add: sandbox PMIC device drivers: I2C emul, pmic, regulatorPrzemyslaw Marczak2015-05-14-1/+634
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit adds emulation of sandbox PMIC device, which includes: - PMIC I2C emulation driver - PMIC I/O driver (UCLASS_PMIC) - PMIC regulator driver (UCLASS_REGULATOR) The sandbox PMIC has 12 significant registers and 4 as padding to 16 bytes, which allows using 'i2c md' command with the default count (16). The sandbox PMIC provides regulators: - 2x BUCK - 2x LDO Each, with adjustable output: - Enable state - Voltage - Current limit (LDO1/BUCK1 only) - Operation mode (different for BUCK and LDO) Each attribute has it's own register, beside the enable state, which depends on operation mode. The header file: sandbox_pmic.h includes PMIC's default register values, which are set on i2c pmic emul driver's probe() method. Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Acked-by: Simon Glass <sjg@chromium.org> Tested on sandbox: Tested-by: Simon Glass <sjg@chromium.org>
* sandbox: i2c: search child emul dev and check its uclass idPrzemyslaw Marczak2015-05-14-3/+17
| | | | | | | | | | | | | | | | The function get_emul() in sandbox i2c bus driver, always returns first child as i2c emul device. This may only work for i2c devices with a single child, which is an only i2c emul device. In case when i2c device has more than one child (e.g. PMIC), and one is i2c emul, then the function should search it by check uclass id for each child. This patch add this change to the get_emul(). Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Cc: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org> Tested on sandbox: Tested-by: Simon Glass <sjg@chromium.org>
* dm: regulator: uclass driver code cleanupPrzemyslaw Marczak2015-05-14-37/+69
| | | | | | | | | | | | | | | | | | | This cleanup includes: - remove of the preprocessor macros which pointed to long name functions - update of the names of some regulator uclass driver functions - cleanup of the function regulator_autoset() - reword of some comments of regulator uclass header file - regulator_get_by_platname: check error for uclass_find_* function calls - add function: regulator_name_is_unique - regulator post_bind(): check regulator name uniqueness - fix mistakes in: regulator/Kconfig - regulator.h: update comments - odroid u3: cleanup the regulator calls Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Acked-by: Simon Glass <sjg@chromium.org> Tested on sandbox: Tested-by: Simon Glass <sjg@chromium.org>
* dm: pmic: code cleanup of PMIC uclass driverPrzemyslaw Marczak2015-05-14-28/+20
| | | | | | | | | | | | | | | | | The cleanup includes: - pmic.h - fix mistakes in a few comments - pmic operations: value 'reg_count' - redefine as function call - fix function name: pmic_bind_childs() -> pmic_bind_children() - pmic_bind_children: change the 'while' loop with the 'for' - add implementation of pmic_reg_count() method - pmic_bind_children() - update function call name - Kconfig: add new line at the end of file - Update MAX77686 driver code Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Acked-by: Simon Glass <sjg@chromium.org> Tested on sandbox: Tested-by: Simon Glass <sjg@chromium.org>
* dm: regulator: add fixed voltage regulator driverPrzemyslaw Marczak2015-05-14-0/+135
| | | | | | | | | | | | | | | | | | | | | | | | | This driver implements regulator operations for fixed Voltage/Current value regulators. beside the standard regulator constraints, which are put into the uclass platform data, a typical fixed regulator node provides few additional properties like: - gpio - gpio-open-drain - enable-active-high - startup-delay-us The only 'gpio' is used by this driver and is kept in structure of type 'fixed_regulator_platdata', as a device platform data (dev->platdata). The driver implements: - get_value - get_current - get_enable - set_enable The regulator calls and commands can be used for fixed-regulator devices, and the proper error will be returned for prohibited. Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Acked-by: Simon Glass <sjg@chromium.org>
* dm: regulator: add max77686 regulator driverPrzemyslaw Marczak2015-05-14-1/+834
| | | | | | | | | | | | | | This commit adds support to MAX77686 regulator driver, based on a driver model regulator's API. It implements almost all regulator operations, beside those for setting and geting the Current value. For proper bind and operation it requires the MAX77686 PMIC driver. New file: drivers/power/regulator/max77686.c New config: CONFIG_DM_REGULATOR_MAX77686 Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Acked-by: Simon Glass <sjg@chromium.org>
* dm: pmic: add max77686 pmic driverPrzemyslaw Marczak2015-05-14-1/+96
| | | | | | | | | | | | | | | This is the implementation of driver model PMIC driver. The max77686 PMIC driver implements read/write operations and driver bind method - to bind its childs. This driver will try to bind the regulator devices by using it's child info array with regulator prefixes and driver names. This should succeed when compatible regulator driver is compiled. If no regulator driver found, then the pmic can still provide read/write operations, and can be used with PMIC function calls. Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Acked-by: Simon Glass <sjg@chromium.org>
* dm: regulator: add implementation of driver model regulator uclassPrzemyslaw Marczak2015-05-14-0/+327
| | | | | | | | | | | | | | | | | | This commit introduces the implementation of dm regulator API. Device tree support allows for auto binding. And by the basic uclass operations, it allows to driving the devices in a common way. For detailed informations, please look into the header file. Core files: - drivers/power/regulator-uclass.c - provides regulator common functions api - include/power/regulator.h - define all structures required by the regulator Changes: - new uclass-id: UCLASS_REGULATOR - new config: CONFIG_DM_REGULATOR Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Acked-by: Simon Glass <sjg@chromium.org>
* dm: pmic: add implementation of driver model pmic uclassPrzemyslaw Marczak2015-05-14-0/+176
| | | | | | | | | | | | | | | | | | | | | | | | This commit introduces the PMIC uclass implementation. It allows providing the basic I/O interface for PMIC devices. For the multi-function PMIC devices, this can be used as I/O parent device, for each IC's interface. Then, each PMIC particular function can be provided by the child device's operations, and the child devices will use its parent for read/write by the common API. Core files: - 'include/power/pmic.h' - 'drivers/power/pmic/pmic-uclass.c' The old pmic framework is still kept and is independent. For more detailed informations, please look into the header file. Changes: - new uclass-id: UCLASS_PMIC - new config: CONFIG_DM_PMIC Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Acked-by: Simon Glass <sjg@chromium.org>
* i2c: mxc: refactor i2c driver and support dmPeng Fan2015-05-14-185/+396
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1. Introduce a new structure `struct mxc_i2c_bus`, this structure will used for non-DM and DM. 2. Remove `struct mxc_i2c_regs` structure, but use register offset to access registers based on `base` entry of `struct mxc_i2c_bus`. 3. Remove most `#ifdef I2C_QUIRK_REG`. Using driver_data to contain platform flags. A new flag is introduced, I2C_QUIRK_FLAG. 4. Most functions use `struct mxc_i2c_bus` as one of the parameters. Make most functions common to DM and non-DM, try to avoid duplicated code. 5. Support DM, but pinctrl is not included. Pinmux setting is still set by setup_i2c, but we do not need bus_i2c_init for DM. 6. struct i2c_parms and struct sram_data are removed. 7. Remove bus_i2c_read bus_i2c_write prototype in header file. The frist paramter of bus_i2c_init is modified to i2c index. Add new prototype i2c_idle_bus and force_bus_idle. Since bus_i2c_init is not good for DM I2C and pinctrl is missed, we use a weak function for i2c_idle_bus. Board file take the responsibility to implement this function, like this: " int i2c_idle_bus(struct mxc_i2c_bus *i2c_bus) { if (i2c_bus->index == 0) force_bus_idle(i2c_pads_info0); else if (i2c_bus->index == 1) force_bus_idle(i2c_pads_info1); else xxxxxx } " 8. Introduce a weak function, enable_i2c_clk 9. Tested on an i.MX7 platform. Log info: => dm tree Class Probed Name ---------------------------------------- root [ + ] root_driver simple_bus [ ] |-- soc simple_bus [ ] | |-- aips-bus@30000000 simple_bus [ ] | | |-- anatop@30360000 simple_bus [ ] | | `-- snvs@30370000 simple_bus [ ] | |-- aips-bus@30400000 simple_bus [ ] | `-- aips-bus@30800000 i2c [ ] | |-- i2c@30a20000 i2c [ ] | `-- i2c@30a40000 simple_bus [ ] `-- regulators => i2c dev 0 Setting bus to 0 => i2c probe Valid chip addresses: 08 50 => i2c md 8 31 0031: 08 08 08 08 08 08 08 08 08 08 08 08 08 08 08 08 Signed-off-by: Peng Fan <Peng.Fan@freescale.com> Acked-by: Simon Glass <sjg@chromium.org>
* usb: ohci: Add support for interrupt queuesHans de Goede2015-05-14-0/+132
| | | | | | | | Add support for interrupt queues to the ohci hcd code, bringing it inline with the ehci and musb-new(host) code. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Marek Vasut <marex@denx.de>
* usb: ohci: Add an ohci_alloc_urb() functionHans de Goede2015-05-14-8/+23
| | | | | | | | Add an ohci_alloc_urb() function, this is a preparation patch for adding interrupt queue support. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Marek Vasut <marex@denx.de>
* usb: ohci: Do not reuse ed for interrupt endpoints of different devicesHans de Goede2015-05-14-1/+38
| | | | | | | | | | | | | | | | | | | When submitting interrupt packets to an endpoint we only link in the ed once to avoid some races surrounding unlinking of periodic endpoints, but we share one ohci_device struct / one set of ed-s for all devices, which means that if we have an interrupt endpoint at endpoint 1 with one device, and a non interrupt endpoint 1 with another device we end up with the same ed linked into both the periodic and async lists, which is not good (tm). This commit switches over to using separate ohci_device structs, and thus separate ed-s for devices with interrupt endpoints, fixing this. This fixes e.g. matching a usb storage device and keyboard on the same usb-1 hub not working. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Marek Vasut <marex@denx.de>
* sandbox: spi: Add newline to printf() in sandbox_sf_probeSimon Glass2015-05-14-1/+1
| | | | | | | | This printf() should have a newline at the end. Add it. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Joe Hershberger <joe.hershberger@ni.com> Reviewed-by: Jagan Teki <jteki@openedev.com>
* sandbox: cros_ec: Support EC_CMD_ENTERING_MODE emulationSimon Glass2015-05-14-0/+2
| | | | | | Emualate this function which is used with Chrome OS verified boot. Signed-off-by: Simon Glass <sjg@chromium.org>
* sandbox: Add missing errno.h includes in a few filesSimon Glass2015-05-14-0/+2
| | | | | | These files use error numbering, so add the include. Signed-off-by: Simon Glass <sjg@chromium.org>
* tpm: Support using driver model with I2CSimon Glass2015-05-14-56/+170
| | | | | | | As a first step towards converting the TPM system to driver model, allow it to work with CONFIG_DM_I2C. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: i2c: Add a function to find out the chip offset lengthSimon Glass2015-05-14-0/+7
| | | | | | | | We can currently set this but there is no API function to get it. Add one. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Joe Hershberger <joe.hershberger@ni.com> Acked-by: Heiko Schocher<hs@denx.de>
* sunxi: ohci: Add ohci usb host controller supportHans de Goede2015-05-14-0/+105
| | | | | | | | | | | | | This commit adds support for the OHCI companion controller, which makes usb-1 devices directly plugged into to usb root port work. Note for now this switches usb-keyboard support for sunxi back from int-queue support to the old interrupt polling method. Adding int-queue support to the ohci code and switching back to int-queue support is in the works. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Marek Vasut <marex@denx.de> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: ehci: Convert to the driver-modelHans de Goede2015-05-14-29/+64
| | | | | | | | Convert sunxi-boards which use the sunxi-ehci code to the driver-model. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Simon Glass <sjg@chromium.org> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* usb: ohci: Add dm supportHans de Goede2015-05-14-0/+91
| | | | | | | Add driver-model support to the ohci code. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Marek Vasut <marex@denx.de>
* usb: ohci: Skip unnecessary mdelay(1) calls in various placesHans de Goede2015-05-14-9/+20
| | | | | | | | | | | | | | | | | For some reason the ohci code is full with: #ifdef DEBUG pkt_print(...) #else mdelay(1); #endif AFAICT there is no reason for the mdelay(1) calls. This commit disables them when building the ohci code for new driver-model using boards. It leaves the mdelay(1) calls in place when building for older boards, so as to avoid causing any regressions there. Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* usb: ohci: Remove unnecessary delays from hc_start and power power-on pathsHans de Goede2015-05-14-4/+0
| | | | | | | | | | | | The usb spec says that we must wait a minimum amount of time after port power on (exact time is in the hub descriptor), this is something which we must not only do for root ports but also for external hub ports, which is why the common usb_hub code already waits a full second after powering up ports. Having a separate wait for just the root hub in the ohci-hcd code only leads to doing the waiting twice for the root ports, so drop the wait from the ohci-hcd code. Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* usb: ohci: Do not resubmit and leak urbs for interrupt packetsHans de Goede2015-05-14-39/+2
| | | | | | | | | | | The u-boot usb code uses polling for all endpoints, including interrupt endpoints, so urbs should never be automatically resubmitted. This also fixes a leak of the urb, as submit_int_msg() did not check if an already re-submitted urb exists before creating a new one. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Marek Vasut <marex@denx.de>
* dm: usb: Do not scan companion buses if no devices where handed overHans de Goede2015-05-14-8/+34
| | | | | | | | | | | | USB scanning is slow, and there is no need to scan the companion buses if no usb devices where handed over to the companinon controllers by any of the main controllers. This saves e.g. 2 seconds when booting a A10 OLinuxIno Lime with no USB-1 devices plugged into the root usb ports. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Simon Glass <sjg@chromium.org>
* dm: usb: Add support for companion controllersHans de Goede2015-05-14-5/+28
| | | | | | | | | | | | | | USB companion controllers must be scanned after the main controller has been scanned, so that any devices which the main controller which to hand over to the companion have actually been handed over before we scan the companion. As there are no guarantees that this will magically happen in the right order, split the scanning of the buses in 2 phases, first main controllers, and then companion controllers. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Simon Glass <sjg@chromium.org>
* dm: usb: Move printing of usb scan status to usb_scan_bus()Hans de Goede2015-05-14-13/+9
| | | | | | | | | | Move printing of usb scan status to usb_scan_bus(). This is a preparation patch for adding companion controller support to the usb uclass. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Simon Glass <sjg@chromium.org>
* dm: usb: Add support for interrupt queues to the dm usb codeHans de Goede2015-05-14-0/+62
| | | | | | | | | | | | | | | Interrupt endpoints typically are polled for a long time by the usb controller before they return anything, so calls to submit_int_msg() can take a long time to complete this. To avoid this the u-boot code has the an interrupt queue mechanism / API, add support for this to the driver-model usb code and implement it for the dm ehci code. See the added doc comments for more details. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Simon Glass <sjg@chromium.org>
* dm: usb: Prefix ehci interrupt-queue functions with _ehci_Hans de Goede2015-05-14-9/+28
| | | | | | | | This is a preparation patch for adding interrupt-queue support to the ehci dm code. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Simon Glass <sjg@chromium.org>
* usb: Stop reset procedure when a dev is handed over to a companion hcdHans de Goede2015-05-14-1/+2
| | | | | | | | | | Short circuit the retry loop in legacy_hub_port_reset() by returning an error from usb_control_msg() when a device was handed over to a companion by the ehci code. This avoids trying to reset low / fullspeed devices 5 times needlessly. Also do not print an error when a device has been handed over. Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* usb: Fix handover of full-speed devices from ehci to companionHans de Goede2015-05-14-3/+13
| | | | | | | | When after a reset the port status connection bit is still set and the enable bit is not then we're dealing with a full-speed device and should hand it over to the companion controller. Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* tegra124: video: Add full link training for eDPSimon Glass2015-05-13-64/+1079
| | | | | | | | | Add full link training as a fallback in case the fast link training fails. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: Tom Warren <twarren@nvidia.com>
* tegra: video: support eDP displays on Tegra124 devicesSimon Glass2015-05-13-0/+465
| | | | | | | | | Connect up the clocks and the eDP driver to make these displays work with Tegra124-based devices. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: Tom Warren <twarren@nvidia.com>
* tegra: video: Add Embedded DisplayPort driverSimon Glass2015-05-13-0/+1265
| | | | | | | | | | This interface is used on laptop devices based on Tegra. Add a driver which provides access to the eDP interface. The driver uses the display port uclass. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: Tom Warren <twarren@nvidia.com>
* tegra: video: Support serial output resource (SOR) on tegra124Simon Glass2015-05-13-0/+1809
| | | | | | | | | The SOR is required for talking to eDP LCD panels. Add a driver for this which will be used by the DisplayPort driver. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: Tom Warren <twarren@nvidia.com>
* dm: video: Add a uclass for display portSimon Glass2015-05-13-0/+45
| | | | | | | | | eDP (Embedded DisplayPort) is a standard widely used in laptops to drive LCD panels. Add a uclass for this which supports a few simple operations. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: Tom Warren <twarren@nvidia.com>
* power: Export register access functions from as3722Simon Glass2015-05-13-3/+13
| | | | | | | | With the full PMIC framework we may be able to avoid this. But for now we need access to the PMIC. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
* dm: gpio: Add error handling and a function to claim vector GPIOsSimon Glass2015-05-13-3/+35
| | | | | | | | | gpio_get_values_as_int() should return an error if something goes wrong. Also provide gpio_claim_vector(), a function to request the GPIOs and set them to input mode. Otherwise callers have to do this themselves. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
* Revert "stm32f4: fix serial output"Tom Rini2015-05-10-3/+0
| | | | | | | | | As per the author, we don't need this patch really since the other patch "stm32f4: fix serial output" superseded it. This reverts commit 85e5f5b7a7f8d889271f94791606cde62d81d53f. Signed-off-by: Tom Rini <trini@konsulko.com>
* serial: fdt: add device tree support for pl01xVikas Manocha2015-05-10-1/+29
| | | | | | | This patch adds device tree support for arm pl010/pl011 driver. Signed-off-by: Vikas Manocha <vikas.manocha@st.com> Acked-by: Simon Glass <sjg@chromium.org>
* stm32f4: add serial print portkunhuahuang2015-05-10-12/+59
| | | | | | | | | | | | Add the stm32F4 board's serial ports support. User can use it easily. The user only need to edit the number of the usart. The patch also fix the serial print out. Last, this version of patch fix the first patch checkpatch.pl error. Thanks to Kamil Lulko. Signed-off-by: kunhuahuang <huangkunhua@gmail.com>
* stm32f4: fix serial outputkunhuahuang2015-05-10-0/+4
| | | | | | | | | This patch fix the serial output. The source is from Kamil Lulko's "stm32f429-discovery board support" Thanks, Varcain. I learned a lot. Signed-off-by: kunhuahuang <huangkunhua@gmail.com>
* gpio: stm32_gpio: Use clrsetbits_le32() at appropriate placesAxel Lin2015-05-08-13/+5
| | | | | | Use clrsetbits_le32() to replace clrbits_le32() + setbits_le32(). Signed-off-by: Axel Lin <axel.lin@ingics.com>
* misc: led: Add PCA9551 LED driverStefan Roese2015-05-08-0/+169
| | | | | | | | | | This patch adds a driver for the PCA9551 LED controller. Originated-by: Timo Herbrecher <t.herbrecher@gateware.de> Signed-off-by: Stefan Roese <sr@denx.de> Reviewed-by: Tom Rini <trini@konsulko.com> Cc: Fabio Estevam <festevam@gmail.com> Reviewed-by: Fabio Estevam <fabio.estevam@freescale.com>
* dm: sf: Update default name of spi flash in structure udeviceHaikun.Wang@freescale.com2015-05-06-2/+2
| | | | | | | Default name of spi flash like this "0:0", update it to "spi_flash@0:0". Signed-off-by: Haikun Wang <haikun.wang@freescale.com> Acked-by: Simon Glass <sjg@chromium.org>
* dm: usb: exynos: Drop legacy USB codeSimon Glass2015-05-06-225/+0
| | | | | | Drop the code that doesn't use driver model for USB. Signed-off-by: Simon Glass <sjg@chromium.org>
* usb: ohci: Don't log an error on interrupt packet timeoutHans de Goede2015-05-06-1/+2
| | | | | | | Interrupts transfers timing out is normal, so do not log an error for this. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Marek Vasut <marex@denx.de>
* usb: ohci: Add proper cache flushing / invalidating for non cache coherent cpusHans de Goede2015-05-06-5/+84
| | | | | | | | Add proper cache flushing / invalidating for non cache coherent cpus, for now only enable this for new (driver-model) usb code to avoid regressions. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Marek Vasut <marex@denx.de>
* usb: ohci: Fix ctrl in messages with a data-len of 0Hans de Goede2015-05-06-1/+1
| | | | | | | Fix taken from the Linux kernel ohci driver. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Marek Vasut <marex@denx.de>