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path: root/drivers/phy/phy-omap-usb2.c
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* phy: core: Let node ptr of PHY point to PHY and not of PHY providerKishon Vijay Abraham I2014-07-221-1/+1
| | | | | | | | | | | In case of multi-phy PHY providers, each PHY should be modeled as a sub node of the PHY provider. Then each PHY will have a different node pointer (node pointer of sub node) than that of PHY provider. Added this provision in the PHY core. Also fixed all drivers to use the updated API. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Acked-by: Lee Jones <lee.jones@linaro.org>
* phy: omap-usb2: Balance pm_runtime_enable() on probe failure and removeRoger Quadros2014-07-111-2/+5
| | | | | | | | | | | | | | | If probe fails then we need to call pm_runtime_disable() to balance out the previous pm_runtime_enable() call. Else it will cause unbalanced pm_runtime_enable() call in the succeding probe call. This anomaly was observed when the call to devm_phy_create() failed with -EPROBE_DEFER. Balance out the pm_runtime_enable() call in .remove() as well. Signed-off-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* phy: omap-usb2: fix devm_ioremap_resource error detection codeHimangi Saraogi2014-07-111-2/+2
| | | | | | | | | | | | | | | | | | | | | | | devm_ioremap_resource returns an ERR_PTR value, not NULL, on failure. A simplified version of the semantic match that finds this problem is as follows: // <smpl> @@ expression e,e1; statement S; @@ *e = devm_ioremap_resource(...); if (!e1) S // </smpl> Signed-off-by: Himangi Saraogi <himangi774@gmail.com> Acked-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* phy: omap-usb2: Use generic clock names "wkupclk" and "refclk"Roger Quadros2014-05-081-7/+23
| | | | | | | | | | As clocks might be named differently on multiple platforms, use a generic name in the driver and allow device tree node to specify the platform specific clock name. Reviewed-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
* phy: rename struct omap_control_usb to struct omap_control_phyKishon Vijay Abraham I2014-03-091-4/+4
| | | | | | | | | | | Rename struct omap_control_usb to struct omap_control_phy since it can be used to control PHY of USB, SATA and PCIE. Also move the driver and include files under *phy* and made the corresponding changes in the users of phy-omap-control. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Roger Quadros <rogerq@ti.com> Acked-by: Felipe Balbi <balbi@ti.com>
* phy: omap-usb2: Add different compatible for OMAP5George Cherian2014-03-091-0/+9
| | | | | | | | | Add a new compatible for OMAP5 since it does not use any of the OTG operations as of now. HAS_SRP and SET_VBUS functionalities are used only for OMAP4. Signed-off-by: George Cherian <george.cherian@ti.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
* phy: omap-usb2: Provide workaround for USB2PHY false disconnectAustin Beam2014-03-091-0/+44
| | | | | | | | | | | | | | | | | Enable the dra7x errata workaround for false disconnect problem with USB2PHY. False disconnects were detected with some of the devices. Reduce the sensitivity of the disconnect logic within the USB2PHY subsystem to enusre these false disconnects are not registered. [george.cherian@ti.com] While at that, pass proper flags for each SoC's. This is a common driver used across OMAP4,OMAP5,DRA7xx and AM437x USB2PHY. False disconnect workaround is currently applicable for only DRA7x. Signed-off-by: Austin Beam <austinbeam@ti.com> Signed-off-by: George Cherian <george.cherian@ti.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
* phy: omap-usb2: Adapt phy-omap-usb2 for AM437xGeorge Cherian2014-03-091-12/+37
| | | | | | | | | | Adapt phy-omap-usb2 driver for AM437x. - Add new comaptible "ti,am437x-usb2" for AM437x - Pass proper data to differentiate AM437x and others. - AM437x doesnot support set_vbus and start_srp. Signed-off-by: George Cherian <george.cherian@ti.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
* phy: omap-usb2: move omap_usb.h from linux/usb/ to linux/phy/Kishon Vijay Abraham I2014-03-071-1/+1
| | | | | | | | No functional change. Moved omap_usb.h from linux/usb/ to linux/phy/. Also removed the unused members of struct omap_usb (after phy-omap-pipe3 started using it's own header file) Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
* usb: phy: omap-usb2: remove *set_suspend* callback from omap-usb2Kishon Vijay Abraham I2014-03-061-25/+0
| | | | | | | | | Now that omap-usb2 is adapted to the new generic PHY framework, *set_suspend* ops can be removed from omap-usb2 driver. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Acked-by: Felipe Balbi <balbi@ti.com> Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
* phy: let phy_provider_register be the last step in registering PHYKishon Vijay Abraham I2014-02-181-5/+5
| | | | | | | | | | | Registering phy_provider before creating the PHY can result in PHY callbacks being invoked which will lead to aborts. In order to avoid this invoke phy_provider_register after phy_create and phy_set_drvdata. Reported-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: phy: omap-usb2: Don't use omap_get_control_dev()Roger Quadros2013-10-031-8/+23
| | | | | | | | | | | | | omap_get_control_dev() is being deprecated as it doesn't support multiple instances. As control device is present only from OMAP4 onwards which supports DT only, we use phandles to get the reference to the control device. As we don't support non-DT boot, we just bail out on probe if device node is not present. Signed-off-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: phy: omap-usb2: use the new generic PHY frameworkKishon Vijay Abraham I2013-09-271-0/+309
Used the generic PHY framework API to create the PHY. Now the power off and power on are done in omap_usb_power_off and omap_usb_power_on respectively. The omap-usb2 driver is also moved to driver/phy. However using the old USB PHY library cannot be completely removed because OTG is intertwined with PHY and moving to the new framework will break OTG. Once we have a separate OTG state machine, we can get rid of the USB PHY library. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Acked-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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