linux-dev - Linux kernel development work

Age	Commit message (Collapse)	Author	Files	Lines
2017-08-05	soc: imx: gpcv2: fix regulator deferred probe	Stefan Agner	1	-7/+8
	If a regulator requests a deferred probe, the power domain gets initialized twice. This leads to a list double add (without list debugging the kernel hangs due to the double add later): WARNING: CPU: 0 PID: 19 at lib/list_debug.c:31 __list_add_valid+0xbc/0xc4 list_add double add: new=c1229754, prev=c12383b4, next=c1229754. Initialize the power domain after we get the regulator. Also do not print an error in case the regulator defers probing. Cc: Fabio Estevam <fabio.estevam@nxp.com> Cc: Andrey Smirnov <andrew.smirnov@gmail.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Fixes: 03aa12629fc4 ("soc: imx: Add GPCv2 power gating driver") Signed-off-by: Stefan Agner <stefan@agner.ch> Acked-by: Andrey Smirnov <andrew.smirnov@gmail.com> Tested-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2017-04-07	soc: imx: Add GPCv2 power gating driver	Andrey Smirnov	1	-0/+363
	Add code allowing for control of various power domains managed by GPCv2 IP block found in i.MX7 series of SoCs. Power domains covered by this patch are: - PCIE PHY - MIPI PHY - USB HSIC PHY - USB OTG1/2 PHY Support for any other power domain controlled by GPC is not present, and can be added at some later point. Testing of this code was done against a PCIe driver. Cc: yurovsky@gmail.com Cc: Lucas Stach <l.stach@pengutronix.de> Cc: Fabio Estevam <fabio.estevam@nxp.com> Cc: Dong Aisheng <dongas86@gmail.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>