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path: root/drivers/phy
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2014-01-20Merge tag 'usb-3.14-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB updates from Greg KH: "Here's the big USB pull request for 3.14-rc1 Lots of little things all over the place, and the usual USB gadget updates, and XHCI fixes (some for an issue reported by a lot of people). USB PHY updates as well as chipidea updates and fixes. All of these have been in the linux-next tree with no reported issues" * tag 'usb-3.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (318 commits) usb: chipidea: udc: using MultO at TD as real mult value for ISO-TX usb: chipidea: need to mask INT_STATUS when write otgsc usb: chipidea: put hw_phymode_configure before ci_usb_phy_init usb: chipidea: Fix Internal error: : 808 [#1] ARM related to STS flag usb: chipidea: imx: set CI_HDRC_IMX28_WRITE_FIX for imx28 usb: chipidea: add freescale imx28 special write register method usb: ehci: add freescale imx28 special write register method usb: core: check for valid id_table when using the RefId feature usb: cdc-wdm: resp_count can be 0 even if WDM_READ is set usb: core: bail out if user gives an unknown RefId when using new_id usb: core: allow a reference device for new_id usb: core: add sanity checks when using bInterfaceClass with new_id USB: image: correct spelling mistake in comment USB: c67x00: correct spelling mistakes in comments usb: delete non-required instances of include <linux/init.h> usb:hub set hub->change_bits when over-current happens Revert "usb: chipidea: imx: set CI_HDRC_IMX28_WRITE_FIX for imx28" xhci: Set scatter-gather limit to avoid failed block writes. xhci: Avoid infinite loop when sg urb requires too many trbs usb: gadget: remove unused variable in gr_queue_int() ...
2014-01-15phy,exynos: Add dependency on HAS_IOMEMRichard Weinberger
On archs like S390 or um this driver cannot build nor work. Make it depend on HAS_IOMEM to bypass build failures. drivers/built-in.o: In function `exynos_mipi_video_phy_probe': drivers/phy/phy-exynos-mipi-video.c:130: undefined reference to `devm_ioremap_resource' Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-24Phy: Add a PHY driver for Marvell MVEBU SATA PHY.Andrew Lunn
Kirkwood and Dove can turn the SATA phy on and off. Add a PHY driver to control this. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2013-12-24phy: phy-core.c: remove unnecessary initialization of local variablesKishon Vijay Abraham I
There were a few places where variables are initialized unncessarily. Remove those initializations. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2013-12-24phy: phy-core: increment refcounting variables only on 'success'Kishon Vijay Abraham I
Increment 'init_count' only if the 'init' callback succeeded and decrement 'init_count' only if the 'exit' callback succeded. Increment 'power_count' only if 'power_on' callback succeded and if it failed disable the clocks using phy_pm_runtime_put_sync(). Also decrement 'power_count' only if 'power_off' callback succeded and if it failed do not disable the clocks. Reported-by: George Cherian <george.cherian@ti.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2013-12-24phy: core: properly handle failure of pm_runtime_get functionsFelipe Balbi
In case pm_runtime_get*() fails, it still increments pm usage counter, so we *must* make sure to pm_runtime_put() even in those cases. This patch fixes that mistake the same way usbcore treats those possible failures. Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2013-12-23phy: add Broadcom Kona USB2 PHY driverMatt Porter
Add a driver for the internal Broadcom Kona USB 2.0 PHY found on the BCM281xx family of SoCs. Signed-off-by: Matt Porter <mporter@linaro.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-12-10phy: kconfig: add depends on "USB_PHY" to OMAP_USB2 and TWL4030_USBKishon Vijay Abraham I
Fixes warning: (OMAP_USB2 && TWL4030_USB) selects USB_PHY which has unmet direct dependencies (USB_SUPPORT) that shows up while disabling USB_SUPPORT from menuconfig. Reported-by: Russell King <linux@arm.linux.org.uk> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Acked-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-12-10drivers: phy: tweaks to phy_create()Dan Carpenter
If this was called with a NULL "dev" then it lead to a NULL dereference when we called dev_WARN(). I have changed it to WARN_ON() so that we get a stack dump and can fix the caller. The rest of this patch is just cleanup like returning directly instead of having do-nothing gotos. Using descriptive labels instead of GW-BASIC style "err0" and "err1". I also flipped the order of put_device() and ida_remove() so they are a mirror reflection of the order they were allocated. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-12-10drivers: phy: Fix memory leakSachin Kamat
'phy' was not being freed upon error in one of the cases. Adjust the 'goto's to fix this. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-24Merge tag 'usb-for-v3.13' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next Felipe writes: usb: patches for v3.13 Final conversions to configfs for mass storage, acm_ms, and multi gadgets. MUSB should now work out of the box on AM335x-based boards (beagle bone white and black) with DMA thanks to Sebastian's work. We can now enable VERBOSE_DEBUG on builds of drivers/usb/gadget/ by selecting CONFIG_USB_GADGET_VERBOSE. s3c-hsotg got quite a few non-critical fixes but also learned a few new tricks (isochronous transfers, multi count support). The Marvel USB3 Controller driver got a memory leak fix. devm_usb_get_phy() learned not to return NULL, ever. Other than these patches, we have the usual set of cleanups ranging from removal of unnecessary *_set_drvdata() to using SIMPLE_DEV_PM_OPS. Signed-of-by: Felipe Balbi <balbi@ti.com>
2013-10-19phy: exynos-mipi-video: Fix phy_power_off() callbackSylwester Nawrocki
Fix argument passed to the register setup helper function so the phy is actually disabled. Now due to cut&paste error 1 is passed to both phy_power_on() and phy_power_off(). Reported by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Reviewed-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-16phy: Add driver for Exynos DP PHYJingoo Han
Add a PHY provider driver for the Samsung Exynos SoC Display Port PHY. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Cc: Sylwester Nawrocki <s.nawrocki@samsung.com> Acked-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-16phy: Add driver for Exynos MIPI CSIS/DSIM DPHYsSylwester Nawrocki
Add a PHY provider driver for the Samsung S5P/Exynos SoC MIPI CSI-2 receiver and MIPI DSI transmitter DPHYs. Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-03usb: phy: omap-usb2: Don't use omap_get_control_dev()Roger Quadros
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>
2013-09-27usb: phy: twl4030-usb: remove *set_suspend* and *phy_init* opsKishon Vijay Abraham I
Now that twl4030-usb is adapted to the new generic PHY framework, *set_suspend* and *phy_init* ops can be removed from twl4030-usb 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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-09-27usb: phy: twl4030: use the new generic PHY frameworkKishon Vijay Abraham I
Used the generic PHY framework API to create the PHY. For powering on and powering off the PHY, power_on and power_off ops are used. Once the MUSB OMAP glue is adapted to the new framework, the suspend and resume ops of usb phy library will be removed. Also twl4030-usb driver is moved to drivers/phy/. However using the old usb phy library cannot be completely removed because otg is intertwined with phy and moving to the new framework completely 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> Acked-by: Felipe Balbi <balbi@ti.com> Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-09-27usb: phy: omap-usb2: use the new generic PHY frameworkKishon Vijay Abraham I
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>
2013-09-27drivers: phy: add generic PHY frameworkKishon Vijay Abraham I
The PHY framework provides a set of APIs for the PHY drivers to create/destroy a PHY and APIs for the PHY users to obtain a reference to the PHY with or without using phandle. For dt-boot, the PHY drivers should also register *PHY provider* with the framework. PHY drivers should create the PHY by passing id and ops like init, exit, power_on and power_off. This framework is also pm runtime enabled. The documentation for the generic PHY framework is added in Documentation/phy.txt and the documentation for dt binding can be found at Documentation/devicetree/bindings/phy/phy-bindings.txt Cc: Tomasz Figa <t.figa@samsung.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Acked-by: Felipe Balbi <balbi@ti.com> Tested-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>