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2019-04-17phy: renesas: rcar-gen3-usb2: enable/disable independent irqsYoshihiro Shimoda1-25/+160
Since the previous code enabled/disabled the irqs both OHCI and EHCI, it is possible to cause unexpected interruptions. To avoid this, this patch creates multiple phy instances from phandle and enables/disables independent irqs by the instances. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com> Tested-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2019-04-17phy: renesas: rcar-gen3-usb2: Use pdev's device pointer on dev_vdbg()Yoshihiro Shimoda1-4/+6
To implement multiple phy instances in the future, this patch uses pdev's device pointer on dev_vdbg() instead of the phy's device pointer. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2019-04-17phy: rcar-gen3-usb2: Add support for r8a77470Biju Das2-7/+34
This patch adds support for r8a77470 (RZ/G1C). We can reuse this driver for initializing timing/interrupt generation registers. Signed-off-by: Biju Das <biju.das@bp.renesas.com> Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2019-04-17phy: renesas: phy-rcar-gen2: Add support for r8a77470Biju Das1-12/+118
This patch adds support for RZ/G1C (r8a77470) SoC. RZ/G1C SoC has a PLL register shared between hsusb0 and hsusb1. Compared to other RZ/G1 and R-Car Gen2/3, USB Host needs to deassert the pll reset. Signed-off-by: Biju Das <biju.das@bp.renesas.com> Reviewed-and-Tested-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2018-12-12phy: renesas: rcar-gen3-usb2: follow the hardware manual procedureYoshihiro Shimoda1-6/+11
This patch modifies rcar_gen3_init_otg() procedure to follow Figure 73.4 of "R-Car Series, 3rd Generation User's Manual: Hardware Rev.1.00". Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2018-09-26phy: renesas: convert to SPDX identifiersKuninori Morimoto2-0/+2
This patch updates license to use SPDX-License-Identifier instead of verbose license text. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2018-09-25phy: renesas: rcar-gen3-usb2: add is_otg_channel to use "role" sysfsYoshihiro Shimoda1-5/+18
Even if a board doesn't have otg pins connection, this hardware can change the role by a register setting. So, this patch adds "is_otg_channel" for it. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2018-09-25phy: renesas: rcar-gen3-usb2: add conditions for uses_otg_pins == falseYoshihiro Shimoda1-1/+4
If uses_otg_pins is set to false, this driver 1) should disable otg related interruptions, and 2) should not get ID pin signal, to avoid unexpected behaviors. So, this patch adds conditions for it. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2018-09-25phy: renesas: rcar-gen3-usb2: change a condition "dr_mode"Yoshihiro Shimoda1-1/+3
This patch changes a condition about dr_mode. If a device node has any dr_mode ("host", "peripheral" or "otg"), this driver allows to set "is_otg_channel" to true. Also, this patch keeps the dr_mode value for future use. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2018-09-25phy: renesas: rcar-gen3-usb2: unify OBINTEN handlingYoshihiro Shimoda1-8/+15
This patch unifies the OBINTEN handling to clean-up the code. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2018-09-25phy: renesas: rcar-gen3-usb2: Check a property to use otg pinsYoshihiro Shimoda1-18/+6
Since All R-Car Gen3 SoCs have dedicated otg pins actually but some boards don't use the otg pins (e.g. R-Car D3 Draak and R-Car E3 Ebisu), the driver should not choose SoC model base by using rcar_gen3_phy_usb2_match_table's data. So, this patch checks a "renesas,no-otg-pins" property to set the "uses_otg_pins". Note that since r8a77995-draak.dts and r8a77990-ebisu.dts don't have 'dr_mode = "otg";' for now, if we apply this patch, no behavior changes (the value of "uses_otg_pins" is false). Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2018-09-25phy: renesas: rcar-gen3-usb2: Rename has_otg_pins to uses_otg_pinsYoshihiro Shimoda1-7/+7
Since R-Car E3 and D3 have dedicated otg pins actually, "has_otg_pins" is possible to misread in the future. So, this patch renames has_otg_pins to uses_otg_pins. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2018-09-25phy: renesas: rcar-gen3-usb2: fix vbus_ctrl for role sysfsYoshihiro Shimoda1-1/+1
This patch fixes and issue that the vbus_ctrl is disabled by rcar_gen3_init_from_a_peri_to_a_host(), so a usb host cannot supply the vbus. Note that this condition will exit when the otg irq happens even if we don't apply this patch. Fixes: 9bb86777fb71 ("phy: rcar-gen3-usb2: add sysfs for usb role swap") Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2018-09-10phy: renesas: use SPDX identifier for Renesas driversWolfram Sang3-12/+3
Use SPDX identifier for Renesas drivers. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2018-07-10phy: Renesas R-Car gen3 PCIe PHY driverSergei Shtylyov3-0/+159
This PHY is still mostly undocumented -- the only documented registers exist on R-Car V3H (R8A77980) SoC where this PHY stays in a powered-down state after a reset and thus we must power it up for PCIe to work... Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2018-03-16phy: rcar-gen3-usb2: Add support for r8a77965Yoshihiro Shimoda1-0/+4
This patch adds support for r8a77965 (R-Car M3-N). This SoC has dedicated pins. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-12-15phy: rcar-gen3-usb2: select USB_COMMONArnd Bergmann1-0/+2
When USB is disabled, we get a link error for this driver because of the added OTG support drivers/phy/renesas/phy-rcar-gen3-usb2.o: In function `rcar_gen3_phy_usb2_probe': phy-rcar-gen3-usb2.c:(.text+0x250): undefined reference to `of_usb_get_dr_mode_by_phy' Other phy drivers select USB_COMMON for this, so let's do the same here. Fixes: 7e0540f41332 ("phy: rcar-gen3-usb2: check dr_mode for otg mode") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-10-27Merge tag 'extcon-next-for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon into usb-nextGreg Kroah-Hartman1-1/+1
Chanwoo writes: Update extcon for 4.15 Detailed description for this pull request: 1. Split out extcon header file for consumer and provider device : The extcon has two type of extcon devices as following. - 'extcon provider deivce' adds new extcon device and detect the state/properties of external connector. Also, it notifies the state/properties to the extcon consumer device. - 'extcon consumer device' gets the change state/properties from extcon provider device. Prior to that, include/linux/extcon.h contains all exported API for both provider and consumer device driver. To clarify the meaning of header file and to remove the wrong use-case on consumer device. - include/linux/extcon-provider.h includes API for the provider device driver. - include/linux/extcon.h includes the API for the consumer device driver. 2. Support the SmartDock accessory on extcon-max77843.c device driver - Support the SmartDock accessory which detects following connectors at the same time. : USB host throught USB hub for mouse, keyboard and so on. : MHL connector for video output. : Charger connector for battery charging. - It tested with Unitek Y-2165 MHL+OTG Hub Smart Phone Dock. 3. Fix the minor issue of extcon driver - Delete the unneeded initialization in extcon-max14577. - Make extcon_info static const in order to fix the warning.
2017-10-23phy: rcar-gen3-usb2: add SoC-specific parameter for dedicated pinsYoshihiro Shimoda1-10/+21
This patch adds SoC-specific parameter to avoid reading/writing specific registers wrongly if this driver runs on a SoC which doesn't have dedicated pins (e.g. R-Car D3). This patch also changes the value "has_otg" to "has_otg_pins" for slightly easier reading of the code. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-10-23phy: rcar-gen3-usb2: use enum phy_mode in the role_store()Yoshihiro Shimoda1-11/+18
This patch modifies the role_store() to use "enum phy_mode" instead of the local "bool" for host/device mode selection. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-10-23phy: rcar-gen3-usb2: check dr_mode for otg modeYoshihiro Shimoda1-3/+7
The previous code assumed a channel has otg capability if a channel has interrupt property. But, it is not good because: - Battery charging feature also needs interrupt property. - Some R-Car Gen3 SoCs (e.g. R-Car D3) don't have OTG capability. So, this patch checks whether usb 2.0 host node has dr_mode property or not. If it has 'dr_mode = "otg";', this driver enables otg capability. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-10-23extcon: Split out extcon header file for consumer and provider deviceChanwoo Choi1-1/+1
The extcon has two type of extcon devices as following. - 'extcon provider deivce' adds new extcon device and detect the state/properties of external connector. Also, it notifies the state/properties to the extcon consumer device. - 'extcon consumer device' gets the change state/properties from extcon provider device. Prior to that, include/linux/extcon.h contains all exported API for both provider and consumer device driver. To clarify the meaning of header file and to remove the wrong use-case on consumer device, this patch separates into extcon.h and extcon-provider.h. [Description for include/linux/{extcon.h|extcon-provider.h}] - extcon.h includes the extcon API and data structure for extcon consumer device driver. This header file contains the following APIs: : Register/unregister the notifier to catch the change of extcon device : Get the extcon device instance : Get the extcon device name : Get the state of each external connector : Get the property value of each external connector : Get the property capability of each external connector - extcon-provider.h includes the extcon API and data structure for extcon provider device driver. This header file contains the following APIs: : Include 'include/linux/extcon.h' : Allocate the memory for extcon device instance : Register/unregister extcon device : Set the state of each external connector : Set the property value of each external connector : Set the property capability of each external connector Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Acked-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Acked-by: Chen-Yu Tsai <wens@csie.org> Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com> Acked-by: Lee Jones <lee.jones@linaro.org> Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com> Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-06-07phy: rcar-gen3-usb3: add support for R-Car Gen3 USB 3.0 PHYYoshihiro Shimoda3-0/+234
The USB 3.0 PHY modules of R-Car Gen3 SoCs have: - Spread spectrum clock (ssc). - Using USB 2.0 EXTAL clock instead of USB 3.0 clock. - Enabling VBUS detection for usb3.0 peripheral. So, this driver supports these features. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-06-01phy: Group vendor specific phy driversVivek Gautam4-0/+863
Adding vendor specific directories in phy to group phy drivers under their respective vendor umbrella. Also updated the MAINTAINERS file to reflect the correct directory structure for phy drivers. Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org> Acked-by: Heiko Stuebner <heiko@sntech.de> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Krzysztof Kozlowski <krzk@kernel.org> Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com> Cc: Kishon Vijay Abraham I <kishon@ti.com> Cc: David S. Miller <davem@davemloft.net> Cc: Geert Uytterhoeven <geert+renesas@glider.be> Cc: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Cc: Guenter Roeck <linux@roeck-us.net> Cc: Heiko Stuebner <heiko@sntech.de> Cc: Viresh Kumar <viresh.kumar@linaro.org> Cc: Maxime Ripard <maxime.ripard@free-electrons.com> Cc: Chen-Yu Tsai <wens@csie.org> Cc: Sylwester Nawrocki <s.nawrocki@samsung.com> Cc: Krzysztof Kozlowski <krzk@kernel.org> Cc: Jaehoon Chung <jh80.chung@samsung.com> Cc: Stephen Boyd <stephen.boyd@linaro.org> Cc: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-arm-msm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-omap@vger.kernel.org Cc: linux-renesas-soc@vger.kernel.org Cc: linux-rockchip@lists.infradead.org Cc: linux-samsung-soc@vger.kernel.org Cc: linux-usb@vger.kernel.org Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
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