kernel/linux.git/drivers/extcon, branch v4.4.235

extcon: sm5502: Reset registers during initialization

2020-01-04T12:34:13+00:00

[ Upstream commit 6942635032cfd3e003e980d2dfa4e6323a3ce145 ] On some devices (e.g. Samsung Galaxy A5 (2015)), the bootloader seems to keep interrupts enabled for SM5502 when booting Linux. Changing the cable state (i.e. plugging in a cable) - until the driver is loaded - will therefore produce an interrupt that is never read. In this situation, the cable state will be stuck forever on the initial state because SM5502 stops sending interrupts. This can be avoided by clearing those pending interrupts after the driver has been loaded. One way to do this is to reset all registers to default state by writing to SM5502_REG_RESET. This ensures that we start from a clean state, with all interrupts disabled. Suggested-by: Chanwoo Choi Signed-off-by: Stephan Gerhold Signed-off-by: Chanwoo Choi Signed-off-by: Sasha Levin

extcon: max8997: Fix lack of path setting in USB device mode

2019-12-21T09:34:26+00:00

[ Upstream commit a2dc50914744eea9f83a70a5db0486be625e5dc0 ] MAX8997 driver disables automatic path selection from MicroUSB connector and manually sets path to either UART or USB lines. However the code for setting USB path worked only for USB host mode (when ID pin is set to ground). When standard USB cable (USB device mode) is connected, path registers are not touched. This means that once the non-USB accessory is connected to MAX8997-operated micro USB port, the path is no longer set to USB and USB device mode doesn't work. This patch fixes it by setting USB path both for USB and USB host modes. Signed-off-by: Marek Szyprowski Signed-off-by: Chanwoo Choi Signed-off-by: Sasha Levin

extcon: arizona: Disable mic detect if running when driver is removed

2019-06-11T10:24:01+00:00

[ Upstream commit 00053de52231117ddc154042549f2256183ffb86 ] Microphone detection provides the button detection features on the Arizona CODECs as such it will be running if the jack is currently inserted. If the driver is unbound whilst the jack is still inserted this will cause warnings from the regulator framework as the MICVDD regulator is put but was never disabled. Correct this by disabling microphone detection on driver removal and if the microphone detection was running disable the regulator and put the runtime reference that was currently held. Signed-off-by: Charles Keepax Signed-off-by: Chanwoo Choi Signed-off-by: Sasha Levin

extcon: usb-gpio: Don't miss event during suspend/resume

2019-04-03T04:23:18+00:00

commit 04c080080855ce84dcd490a2e04805608a21085d upstream. Pin state might have changed during suspend/resume while our interrupts were disabled and if device doesn't support wakeup. Scan for change during resume for such case. Signed-off-by: Roger Quadros Signed-off-by: Chanwoo Choi Signed-off-by: Arnd Bergmann Signed-off-by: Greg Kroah-Hartman

extcon: palmas: Check the parent instance to prevent the NULL

2017-11-21T08:21:18+00:00

[ Upstream commit 9fe172b9be532acc23e35ba693700383ab775e66 ] extcon-palmas must be child of palmas and expects parent's drvdata to be valid. Check for non NULL parent drvdata and fail if it is NULL. Not doing so will result in a NULL pointer dereference later in the probe() parent drvdata is NULL (e.g. misplaced extcon-palmas node in device tree). Signed-off-by: Roger Quadros Signed-off-by: Chanwoo Choi Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

extcon: axp288: Use vbus-valid instead of -present to determine cable presence

2017-10-08T08:14:16+00:00

[ Upstream commit 5757aca10146061befd168dab37fb0db1ccd8f73 ] The vbus-present bit in the power status register also gets set to 1 when a usb-host cable (id-pin shorted to ground) is plugged in and a 5v boost converter is supplying 5v to the otg usb bus. This causes a "disconnect or unknown or ID event" warning in dmesg as well as the extcon device to report the last detected charger cable type as being connected even though none is connected. This commit switches to checking the vbus-valid bit instead, which is only 1 when both vbus is present and the vbus-path is enabled in the vbus-path control register (the vbus-path gets disabled when a usb-host cable is detected, to avoid the pmic drawing power from the 5v boost converter). Signed-off-by: Hans de Goede Acked-by: Chanwoo Choi Signed-off-by: Chanwoo Choi Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

extcon: max77843: Use correct size for reading the interrupt register

2016-05-04T21:48:54+00:00

commit c4924e92442d7218bd725e47fa3988c73aae84c9 upstream. The info->status[] array has 3 elements. We are using size MAX77843_MUIC_IRQ_NUM (16) instead of MAX77843_MUIC_STATUS_NUM (3) as intended. Fixes: 135d9f7d135a ('extcon: max77843: Clear IRQ bits state before request IRQ') Signed-off-by: Dan Carpenter Reviewed-by: Jaewon Kim Reviewed-by: Krzysztof Kozlowski [cw00.choi: Modify the patch title] Signed-off-by: Chanwoo Choi Signed-off-by: Greg Kroah-Hartman

extcon: Modify the id and name of external connector

2015-10-15T23:30:09+00:00

This patch modifies the id and name of external connector with the additional prefix to clarify both attribute and meaning of external connector as following: - EXTCON_CHG_* mean the charger connector. - EXTCON_JACK_* mean the jack connector. - EXTCON_DISP_* mean the display port connector. Following table show the new name of external connector with old name: -------------------------------------------------- Old extcon name | New extcon name | -------------------------------------------------- EXTCON_TA | EXTCON_CHG_USB_DCP | EXTCON_CHARGE_DOWNSTREAM| EXTCON_CHG_USB_CDP | EXTCON_FAST_CHARGER | EXTCON_CHG_USB_FAST | EXTCON_SLOW_CHARGER | EXTCON_CHG_USB_SLOW | -------------------------------------------------- EXTCON_MICROPHONE | EXTCON_JACK_MICROPHONE | EXTCON_HEADPHONE | EXTCON_JACK_HEADPHONE | EXTCON_LINE_IN | EXTCON_JACK_LINE_IN | EXTCON_LINE_OUT | EXTCON_JACK_LINE_OUT | EXTCON_VIDEO_IN | EXTCON_JACK_VIDEO_IN | EXTCON_VIDEO_OUT | EXTCON_JACK_VIDEO_OUT | EXTCON_SPDIF_IN | EXTCON_JACK_SPDIF_IN | EXTCON_SPDIF_OUT | EXTCON_JACK_SPDIF_OUT | -------------------------------------------------- EXTCON_HMDI | EXTCON_DISP_HDMI | EXTCON_MHL | EXTCON_DISP_MHL | EXTCON_DVI | EXTCON_DISP_DVI | EXTCON_VGA | EXTCON_DISP_VGA | -------------------------------------------------- And, when altering the name of USB charger connector, EXTCON refers to the "Battery Charging v1.2 Spec and Adopters Agreement"[1] to use the standard name of USB charging port as following. Following name of USB charging port are already used in power_supply subsystem. We chan check it on patch[2]. - EXTCON_CHG_USB_SDP /* Standard Downstream Port */ - EXTCON_CHG_USB_DCP /* Dedicated Charging Port */ - EXTCON_CHG_USB_CDP /* Charging Downstream Port */ - EXTCON_CHG_USB_ACA /* Accessory Charger Adapter */ [1] www.usb.org/developers/docs/devclass_docs/BCv1.2_070312.zip [2] commit 85efc8a18ced ("power_supply: Add types for USB chargers") Signed-off-by: Chanwoo Choi [ckeepax: For the Arizona changes] Acked-by: Charles Keepax Reviewed-by: Roger Quadros

extcon: gpio: Use descriptor-based GPIO interface instead of legacy gpio_* API

2015-09-30T10:22:50+00:00

This patch uses the descriptor-based GPIO interface (gpiod_* API) instead of legacy gpio_* API and add the internal gpio_extcon_init() to handle all gpio-related tasks. Signed-off-by: Chanwoo Choi

extcon: gpio: Fix minor coding style and remove the unused fields.

2015-09-30T10:22:50+00:00

This patch fixes the minor coding style about indentation and removes the unused fields from struct gpio_extcon_platform_data. Signed-off-by: Chanwoo Choi