- 12 Oct, 2015 5 commits
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Chen-Yu Tsai authored
Q8 format tablets use channel 0 of the PWM controller for backlight dimming. Signed-off-by:
Chen-Yu Tsai <wens@csie.org> Signed-off-by:
Hans de Goede <hdegoede@redhat.com> Signed-off-by:
Maxime Ripard <maxime.ripard@free-electrons.com>
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Hans de Goede authored
Add a pinmux setting for the first pwm channel. This is often used for backlight dimming on tablets. Signed-off-by:
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Hans de Goede authored
Add dts nodes for the PWM controller on the A13 / A10s. Signed-off-by:
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Maxime Ripard authored
The C.H.I.P. is a small SBC with an Allwinner R8, 8GB of NAND, 512MB of RAM, USB host and OTG, a wifi / bluetooth combo chip, an audio/video jack and two connectors to plug additional boards on top of it. Signed-off-by:
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Chen-Yu Tsai authored
The AXP22x family of PMIC is used with some Allwinner SoCs. This includes the AXP221, AXP221s and AXP223. They differ in the host interface, maximum supply current for DCDC1 regulator, and default voltage and state for various LDO regulators. Also, the AXP221s does not support fine calibration of the battery fuel gauge. This patch adds a dtsi file for all the common bindings for these PMICs. Currently this is just listing all the regulator nodes. The regulators are initialized based on their device node names. Signed-off-by:
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- 11 Oct, 2015 9 commits
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Adam Sampson authored
The LinkSprite pcDuino v3 Nano's two USB host ports are powered by a single RT9701GB regulator, which has its enable input tied to the A20's PD2 pin, pulled up to 3v3 via a 10k resistor. However, the script.bin that shipped with the device listed PH11 and PH3 as Vbus control pins for the two USB ports. Neither of these are actually connected to anything. Siarhei Siamashka spotted this problem while reviewing the other LinkSprite boards. This patch fixes it by only defining a single regulator, controlled by PD2. Testing shows that the USB ports are now (correctly) only powered up once the USB PHY driver is loaded. Reported-by:
Siarhei Siamashka <siarhei.siamashka@gmail.com> Signed-off-by:
Adam Sampson <ats@offog.org> Reviewed-by:
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Maxime Ripard authored
Add a separate pinctrl node for the UART3 CTS and RTS pins shared between the A10s and A13. Signed-off-by:
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Maxime Ripard authored
The uart3 pins are shared between the A10s and A13, move the pinctrl node to the common DTSI to avoid duplication. Signed-off-by:
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Maxime Ripard authored
The R8 is very close to the A13, but it still has a few differences, notably a composite output, which the A13 lacks. Add a DTSI based on the A13's to hold those differences. Signed-off-by:
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Siarhei Siamashka authored
Enable the otg/drc usb controller on the pcDuino1/2 board. Note that the pcDuino1 FEX file from the vendor contains the following information in the [usbc0] section: usb_id_gpio = port:PH04<0><1><default><default> usb_det_vbus_gpio = port:PH05<0><0><default><default> usb_drv_vbus_gpio = port:PB09<1><0><default><0> While the pcDuino2 FEX has: usb_id_gpio = port:PH04<0><1><default><default> usb_det_vbus_gpio = port:PH05<0><0><default><default> usb_drv_vbus_gpio = port:PD02<1><0><default><0> The ID pin is indeed PH4. The PD2 pin can be used to switch power on/off for the USB Type A receptacle on pcDuino2, but it has nothing to do with the MicroUSB OTG receptacle. The VBUS pin of the MicroUSB receptacle is always connected to 5V according to the schematics (both pcDuino1 and pcDuino2) and confirmed by doing some tests on pcDuino2. The PH5 pin is just one of the pins on the J8 expansion header and has nothing to do with USB OTG. The PB9 pin is pulled up and connected to the N_VBUSEN pin of AXP209 PMIC, while the VBUS pin of AXP209 only has a capacitor between it and the ground (this pin is not used for anything else). To sum it up. Only the ID pin (PH4) has a real use. And 5V voltage is always served to the MicroUSB OTG receptacle no matter what is the state of the PB9/PD2 pins. This patch has been tested on pcDuino2 to work fine in a host role with a USB keyboard connected via an OTG cable. It also works fine in a device role (cdc_ether) with a regular Micro-B cable connected to a desktop PC. Signed-off-by: -
Siarhei Siamashka authored
The LinkSprite pcDuino2 board is almost identical to the older LinkSprite pcDuino1 board according to the schematic pdf files. So we just include the existing "sun4i-a10-pcduino.dts" file and make the necessary adjustments. Signed-off-by:
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Siarhei Siamashka authored
The pcDuino1 board does not use any power switches at all for its two USB host ports and the VBUS pins are always connected to 5V. The pcDuino2 board uses the RT9701GB power switch for its single USB host port, but the USB_EN pin (PD2) is pulled up with a 10K resistor. So that the USB power is still enabled by default, resulting in the same behaviour as pcDuino1 if nobody touches the PD2 pin. This minor difference is going to be handled in a follow-up patch, introducing a separate dts file for pcDuino2. The primary reason for this fix is that the current dts file unnecessarily meddles with the PH3 and PH6 pins. But the PH6 pin is available on the Arduino-compatible expansion header and may have a better use for other purposes. This patch fixes the problem and now the PH6 pin can be used with the GPIO sysfs interface. Tested on a pcDuino2 board with a multimeter: echo 230 > /sys/class/gpio/export echo "out" > /sys/class/gpio/gpio230/direction echo 0 > /sys/class/gpio/gpio230/value echo 1 > /sys/class/gpio/gpio230/value USB still works as expected too. Signed-off-by: -
Hans de Goede authored
Enable the otg/drc usb controller on the Bananapi. Signed-off-by:
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Timo Sigurdsson authored
sun7i-a20-bananapi.dts doesn't contain regulator nodes for the AXP209 PMU driver, so add them to allow for voltage-scaling with cpufreq-dt. Also add board-specific OPP to use slightly higher voltages at lower frequencies since Kevin Hilman reported that not all BananaPi boards run stable at the default voltages inherited by sun7i-a20.dtsi. Signed-off-by:
Timo Sigurdsson <public_timo.s@silentcreek.de> Signed-off-by:
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- 07 Oct, 2015 4 commits
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Chen-Yu Tsai authored
"dcdc1-supply" and "dcdc5-supply" have been dropped, as they are internally connected and should not be represented in the device tree. Signed-off-by:
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Chen-Yu Tsai authored
The Reduced Serial Bus controller is used to talk to the onboard PMIC. Signed-off-by:
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Chen-Yu Tsai authored
The Reduced Serial Bus controller is used to talk to the onboard PMIC. Signed-off-by:
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Chen-Yu Tsai authored
This patch adds a device node for the Reduced Serial Bus (RSB) controller and the defacto pinmux setting to the A23/A33 dtsi. Since there is only one possible pinmux setting for RSB, just set it in the dtsi. Signed-off-by:
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- 05 Oct, 2015 1 commit
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Siarhei Siamashka authored
This allows voltage-scaling with cpufreq-dt. The reliability of voltage-scaling has been checked by reducing the voltage of all operating points by 0.025V (for extra safety headroom) and running libjpeg-turbo decoding tests on 5 pcDuino2 boards. It means that the standard sun4i voltages should be perfectly fine too. Signed-off-by:
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- 01 Oct, 2015 2 commits
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Marcus Cooper authored
The A20-SOM-EVB is a reference design of a 2-layer board for the A20-SOM. It expands the features of A20-SOM by adding VGA connector, HDMI connector, audio In/Out, LCD connector, 2 Mpix camera, gigabit Ethernet, SATA, USB-OTG and 2 USB hosts. Signed-off-by:
Marcus Cooper <codekipper@gmail.com> Signed-off-by:
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Chen-Yu Tsai authored
The hummingbird A31 has 2 rtc devices available: one in the SoC, and a pcf8563 external rtc on i2c2. For some unknown reason, the onboard backup battery alone can not supply enough power to the internal rtc. When external power is removed, the internal rtc would reset. Hence we want to use the external one by default. Add aliases for the rtc devices with the external one as rtc0. Signed-off-by:
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- 29 Sep, 2015 5 commits
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Jelle de Jong authored
The Wits Pro A20 DKT is an A20 Development KiT with 1G RAM, 4G NAND, sdio wifi, 1Gbit ethernet, 1024x768 lcd screen with ft5x_ts touchscreen and a ton of IO connectors. Note there seem to be multiple sdcard slots on the board (4 in total), but other then mmc0 none of these are hooked up by default, there is a ton of dip-switches which likely allow hooking some of these up, but the documentation of the board only describes the use of a fraction of them, so for now we only support mmc0. Signed-off-by:
Jelle de Jong <jelledejong@powercraft.nl> [hdegoede@redhat.com: Use pwrseq instead of a regulator for the wifi-en pin] [hdegoede@redhat.com: Add support for OOB irq for the sdio wifi] Signed-off-by:
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Aleksei Mamlin authored
Enable the otg/drc usb controller on the Wexler TAB7200 tablet. Signed-off-by:
Aleksei Mamlin <mamlinav@gmail.com> Signed-off-by:
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Reinder de Haan authored
Add usb otg support for Orange pi, based on Orange pi mini. Signed-off-by:
Reinder de Haan <patchesrdh@mveas.com> Signed-off-by:
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Hans de Goede authored
Enable the otg/drc usb controller on the orangepi-mini. Signed-off-by:
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Hans de Goede authored
Add a node representing the usb power supply part of the axp209 pmic, note that the usb power supply and the (to be added later) ac power supply will each have their own child-node, so that they can be separately specified as power-supply for other nodes using a power-supply property with a phandle pointing to the right axp209 child-node. Signed-off-by:
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- 28 Sep, 2015 2 commits
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Hans de Goede authored
A33 Q8 tablets with the ippo-q8h-v1.2 pcb will work fine with the generic q8-tablet.dts and given the many variants of PCBs found in Q8 tablets using such a specific dts name was a mistake in hindsight. We cannot just drop the ippo-q8h-v1.2.dtb as existing u-boot configs may very well point to it. Signed-off-by:
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Hans de Goede authored
This is a generic dts file for A33 based q8 formfactor tablets, this is intended to replace both sun8i-a33-ippo-q8h-v1.2.dts and sun8i-a33-et-q8-v1.6.dts (these can be fully dropped after a transition period). Signed-off-by:
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- 27 Sep, 2015 12 commits
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Lawrence Yu authored
The bs1078v2 is a pcb found in 10.1" tablets with an A31 soc, 1G RAM and 8G NAND, rtl8723as usb wifi, 1 micro USB OTG port, 1 USB HOST port This commit adds a dts for v2 of the bs1078 pcb. Signed-off-by:
Lawrence Yu <lyu@micile.com> Signed-off-by:
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Aleksei Mamlin authored
Enable the otg/drc usb controller on the Marsboard A10. Similar to Cubieboard, the 5V of the otg is directly connected to the general 5V, so we only use the id pin. Signed-off-by:
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Priit Laes authored
Add IRQ configuration for bma250 accelerometer. Signed-off-by:
Priit Laes <plaes@plaes.org> Signed-off-by:
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Chen-Yu Tsai authored
A33 has the same "Security System" crypto engine as A10/A20, but with a separate reset control. Signed-off-by:
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Chen-Yu Tsai authored
The LCD backlight on the A23/A33 Q8 format tablets is enabled with a GPIO controlled regulator, and brightness controlled with the SoC's PWM controller. The backlight is powered from the AXP223 PMIC's DC1SW output, which is not supported yet. A proper bootloader is required to enable it. The brightness levels are arbitrary. The FEX files do not have such information. As such, actual brightness levels may differ from device to device. Signed-off-by:
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Maxime Ripard authored
Even though it's not mentionned in the A23 user manual, the A23 has a gate for the AHB1 clock to the msgbox IP. Add it to the clock-indices. Reported-by:
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Maxime Ripard authored
The AHB1 gates were assumed to be identical between the A23 and the A33, which turned out to be wrong. Move the A23 gates definition to the A23 DTSI. Reported-by:
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Maxime Ripard authored
The A33 has a different gates array than the A23, add the node to the DT. Reported-by:
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Hans de Goede authored
This commits adds a generic dts file for q8 formfactor a13 based tablets. The tablets ship in many variants, with the difference mainly being the touchscreen controller / accelerometer / wifi chip used. The wifi is USB based, and thus not listed in devicetree. The touchscreen controller / accelerometer may turn out to be a problem once we add support for those. We can either do something with devicetree overlays, or add sun5i-a13-<touchscreen>-<accelerometer>.dts files. The latter is what the android mod community is doing with firmware images. This dts was tested with an a13 q8 tablet with a pcb labelled: "94V-0", silead gsl1680 touchscreen controller and a mc32x0 accelerometer. Signed-off-by:
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Hans de Goede authored
This is the sun5i / a13 version of sun8i-q8-common.dtsi for use in dts files for a13 q8 based tablets. Compared to sun8i this uses uart1 for the serial console, and PG0 for card-detect for mmc0. This also adds pmic and otg support, which both use the same config on all known q8 a13 devices. This is not present in sun5i-q8-common.dtsi because pmic / otg support for sun8i has not yet been merged. Signed-off-by:
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Chen-Yu Tsai authored
The PWM controller has 2 outputs, with one usable pin for each. Add a pinmux setting for the first channel. This is often used for backlight dimming on tablets. Signed-off-by:
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Chen-Yu Tsai authored
A23/A33 have a PWM controller that is compatible to the one on the A20. Add a device node for it. Signed-off-by:
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