user/sven/linux.git/drivers/mfd, branch v4.4.146

mfd: cros_ec: Fail early if we cannot identify the EC

2018-08-06T14:24:32Z

[ Upstream commit 0dbbf25561b29ffab5ba6277429760abdf49ceff ] If we cannot communicate with the EC chip to detect the protocol version and its features, it's very likely useless to continue. Else we will commit all kind of uninformed mistakes (using the wrong protocol, the wrong buffer size, mixing the EC with other chips). Signed-off-by: Vincent Palatin Acked-by: Benson Leung Signed-off-by: Enric Balletbo i Serra Reviewed-by: Gwendal Grignou Reviewed-by: Andy Shevchenko Signed-off-by: Lee Jones Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

mfd: intel-lpss: Program REMAP register in PIO mode

2018-07-03T09:21:32Z

commit d28b62520830b2d0bffa2d98e81afc9f5e537e8b upstream. According to documentation REMAP register has to be programmed in either DMA or PIO mode of the slice. Move the DMA capability check below to let REMAP register be programmed in PIO mode. Cc: stable@vger.kernel.org # 4.3+ Fixes: 4b45efe85263 ("mfd: Add support for Intel Sunrisepoint LPSS devices") Signed-off-by: Andy Shevchenko Signed-off-by: Lee Jones Signed-off-by: Greg Kroah-Hartman

mfd: palmas: Reset the POWERHOLD mux during power off

2018-03-24T09:58:44Z

[ Upstream commit 85fdaf8eb9bbec1f0f8a52fd5d85659d60738816 ] POWERHOLD signal has higher priority over the DEV_ON bit. So power off will not happen if the POWERHOLD is held high. Hence reset the MUX to GPIO_7 mode to release the POWERHOLD and the DEV_ON bit to take effect to power off the PMIC. PMIC Power off happens in dire situations like thermal shutdown so irrespective of the POWERHOLD setting go ahead and turn off the powerhold. Currently poweroff is broken on boards that have powerhold enabled. This fixes poweroff on those boards. Signed-off-by: Keerthy Signed-off-by: Lee Jones Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

mfd: twl6040: Fix child-node lookup

2018-01-02T19:33:20Z

commit 85e9b13cbb130a3209f21bd7933933399c389ffe upstream. Fix child-node lookup during probe, which ended up searching the whole device tree depth-first starting at the parent rather than just matching on its children. To make things worse, the parent node was prematurely freed, while the child node was leaked. Note that the CONFIG_OF compile guard can be removed as of_get_child_by_name() provides a !CONFIG_OF implementation which always fails. Fixes: 37e13cecaa14 ("mfd: Add support for Device Tree to twl6040") Fixes: ca2cad6ae38e ("mfd: Fix twl6040 build failure") Signed-off-by: Johan Hovold Acked-by: Peter Ujfalusi Signed-off-by: Lee Jones Signed-off-by: Greg Kroah-Hartman

mfd: twl4030-audio: Fix sibling-node lookup

2018-01-02T19:33:20Z

commit 0a423772de2f3d7b00899987884f62f63ae00dcb upstream. A helper purported to look up a child node based on its name was using the wrong of-helper and ended up prematurely freeing the parent of-node while leaking any matching node. To make things worse, any matching node would not even necessarily be a child node as the whole device tree was searched depth-first starting at the parent. Fixes: 019a7e6b7b31 ("mfd: twl4030-audio: Add DT support") Signed-off-by: Johan Hovold Acked-by: Peter Ujfalusi Signed-off-by: Lee Jones Signed-off-by: Greg Kroah-Hartman

mfd: cros ec: spi: Don't send first message too soon

2018-01-02T19:33:20Z

commit 15d8374874ded0bec37ef27f8301a6d54032c0e5 upstream. On the Tegra124 Nyan-Big chromebook the very first SPI message sent to the EC is failing. The Tegra SPI driver configures the SPI chip-selects to be active-high by default (and always has for many years). The EC SPI requires an active-low chip-select and so the Tegra chip-select is reconfigured to be active-low when the EC SPI driver calls spi_setup(). The problem is that if the first SPI message to the EC is sent too soon after reconfiguring the SPI chip-select, it fails. The EC SPI driver prevents back-to-back SPI messages being sent too soon by keeping track of the time the last transfer was sent via the variable 'last_transfer_ns'. To prevent the very first transfer being sent too soon, initialise the 'last_transfer_ns' variable after calling spi_setup() and before sending the first SPI message. Signed-off-by: Jon Hunter Reviewed-by: Brian Norris Reviewed-by: Douglas Anderson Acked-by: Benson Leung Signed-off-by: Lee Jones Signed-off-by: Greg Kroah-Hartman

mfd: axp20x: Fix axp288 PEK_DBR and PEK_DBF irqs being swapped

2017-11-08T09:06:29Z

[ Upstream commit 1af468ebe45591651ec3bafc2e9ddc6fdef70ae0 ] The R in PEK_DBR stands for rising, so it should be mapped to AXP288_IRQ_POKP where the last P stands for positive edge. Likewise PEK_DBF should be mapped to the falling edge, aka the _N_egative edge, so it should be mapped to AXP288_IRQ_POKN. This fixes the inverted powerbutton status reporting by the axp20x-pek driver. Signed-off-by: Hans de Goede Acked-by: Chen-Yu Tsai Signed-off-by: Lee Jones Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

mfd: ab8500-sysctrl: Handle probe deferral

2017-11-08T09:06:29Z

[ Upstream commit 7e9c40c63933a643908d686bd89dfc2315e8c70a ] In the current boot, clients making use of the AB8500 sysctrl may be probed before the ab8500-sysctrl driver. This gives them -EINVAL, but should rather give -EPROBE_DEFER. Before this, the abx500 clock driver didn't probe properly, and as a result the codec driver in turn using the clocks did not probe properly. After this patch, everything probes properly. Also add OF compatible-string probing. This driver is all device tree, so let's just make a drive-by-fix of that as well. Signed-off-by: Linus Walleij Signed-off-by: Lee Jones Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

mfd: omap-usb-tll: Fix inverted bit use for USB TLL mode

2017-06-26T05:13:09Z

commit 8b8a84c54aff4256d592dc18346c65ecf6811b45 upstream. Commit 16fa3dc75c22 ("mfd: omap-usb-tll: HOST TLL platform driver") added support for USB TLL, but uses OMAP_TLL_CHANNEL_CONF_ULPINOBITSTUFF bit the wrong way. The comments in the code are correct, but the inverted use of OMAP_TLL_CHANNEL_CONF_ULPINOBITSTUFF causes the register to be enabled instead of disabled unlike what the comments say. Without this change the Wrigley 3G LTE modem on droid 4 EHCI bus can be only pinged few times before it stops responding. Fixes: 16fa3dc75c22 ("mfd: omap-usb-tll: HOST TLL platform driver") Signed-off-by: Tony Lindgren Acked-by: Roger Quadros Signed-off-by: Lee Jones Signed-off-by: Greg Kroah-Hartman

mfd: core: Fix device reference leak in mfd_clone_cell

2016-11-26T08:54:53Z

commit 722f191080de641f023feaa7d5648caf377844f5 upstream. Make sure to drop the reference taken by bus_find_device_by_name() before returning from mfd_clone_cell(). Fixes: a9bbba996302 ("mfd: add platform_device sharing support for mfd") Signed-off-by: Johan Hovold Signed-off-by: Lee Jones Signed-off-by: Greg Kroah-Hartman