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path: root/drivers/usb/phy/phy-ab8500-usb.c
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2013-05-28usb: phy: ab8500-usb: add ab9540 supportFabio Baltieri
Add support for the ab9540 variant of the ab8500 family. Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Maxime Coquelin <maxime.coquelin@st.com> Cc: Avinash Kumar <avinash.kumar@stericsson.com> Cc: Thirupathi Chippakurthy <thirupathi.chippakurthy@stericsson.com> Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-05-28usb: phy: ab8500-usb: add ab8540 supportFabio Baltieri
Add support for the ab8540 variant of the ab8500 family. Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Maxime Coquelin <maxime.coquelin@st.com> Cc: Avinash Kumar <avinash.kumar@stericsson.com> Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-05-28usb: phy: ab8500-usb: add flag bits to control driver featuresFabio Baltieri
Introduce a "flags" field in "struct ab8500_usb" to allow controlling driver features and quirks depending on ab8500 chip variant and revision. Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Maxime Coquelin <maxime.coquelin@st.com> Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-05-28usb: phy: ab8500-usb: move phy tuning values on separate functionsFabio Baltieri
Move each chip's PHY tuning value set code to a separate function to improve code readability. Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Maxime Coquelin <maxime.coquelin@st.com> Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-05-28usb: phy: ab8500-usb: add platform_device_id tableFabio Baltieri
Add an initial platform_device_id table to the ab8500-usb driver to allow probing additional variants of the ab8500 family chips. Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Maxime Coquelin <maxime.coquelin@st.com> Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-05-28usb: phy: ab8500-usb: fix phy tuning value select logicFabio Baltieri
The driver supports both ab8500 and ab8505, but the actual phy tuning values logic sets ab8500 values: if (!is_ab8500_2p0_or_earlier(ab->ab8500)) which is supposed to set values for ab8500, but incorrectly results true for ab8505 too. Fix this by adding an additional is_ab8500(ab->ab8500) check. Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Maxime Coquelin <maxime.coquelin@st.com> Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-05-28usb: phy: ab8500-usb: restart phy during probeSakethram Bommisetti
Add an ab8500_usb_restart_phy() function called during probe to ensure that the AB8500 USB phy is initialized properly even when a cable is connected at probe time. Without this fix subsequent host reconnections are not detected properly. Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Maxime Coquelin <maxime.coquelin@st.com> Signed-off-by: Sakethram Bommisetti <sakethram.bommisetti@stericsson.com> Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-05-28usb: phy: ab8500-usb: add transceiver clock controlMian Yousaf Kaukab
Add common clock support code for the ab8500-usb phy driver. Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Maxime Coquelin <maxime.coquelin@st.com> Signed-off-by: Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com> Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-05-28usb: musb: various cosmetic fixes on ux500 filesFabio Baltieri
Various non functional coding style fixes on ux500_dma.c and phy-ab8500-usb.c drivers. Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Maxime Coquelin <maxime.coquelin@st.com> Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-05-15usb: phy: ab8500-usb: Remove redundant platform_set_drvdata()Sachin Kamat
Commit 0998d06310 (device-core: Ensure drvdata = NULL when no driver is bound) removes the need to set driver data field to NULL. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-04-03usb: phy: ab8500-usb: check regulator_enable return valueFabio Baltieri
Since regulator_enable() is going to be marked as __must_check in the next merge window, always check regulator_enable() return value and print a warning if it fails. Cc: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-04-03usb: phy: ab8500-usb: call phy_dis_work only when necessarySakethram Bommisetti
Modify ab8500_usb_set_peripheral() and ab8500_usb_set_host() code to schedule phy_dis_work only when necessary in order to prevent regulator count mismatch during reboot/shutdown. Signed-off-by: Sakethram Bommisetti <sakethram.bommisetti@stericsson.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-04-03usb: phy: ab8500-usb: drop link status delayed workSakethram Bommisetti
ab8500_usb_delayed_work was implemented as a workaroud for the internal only and now unsupported v1.0 version of AB850. This patch removes the delayed work and just leave a link status update call at probe time. Signed-off-by: Sakethram Bommisetti <sakethram.bommisetti@stericsson.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-04-03usb: phy: ab8500-usb: adopt pinctrl supportPatrice Chotard
Amend the ab8500-usb driver to optionally take a pin control handle and set the state of the pins to "default" on ab8500_usb_phy_enable and to "sleep" on ab8500_usb_phy_disable. The pinctrl handle is released on ab8500_usb_phy_disable because USB pins are shared with ab8505_micro_usb_iddet driver. Signed-off-by: Patrice Chotard <patrice.chotard@st.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-04-03usb: phy: ab8500-usb: fix last notifier argumentsFabio Baltieri
Fix last ab->phy.notifier call to use vbus_draw as notifier argument, as that's used in ab8500_charger to control charging current. Also drop a related TODO comment, and the additional ux500_musb_set_vbus(musb, 0), as with this patch it was causing an erratic behaviour of gadget ep0 state machine. Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-04-03usb: phy: ab8500-usb: fix unbalanced clock and regulator disable warningsMian Yousaf Kaukab
To prevent clock and regulator frameworks from complaining, only disable the host or peripheral phy if they were enabled. Reported-by: Sakethram Bommisetti <sakethram.bommisetti@stericsson.com> Signed-off-by: Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-04-03usb: phy: ab8500-usb: enable/disable regulator on phy eventsFabio Baltieri
Add ab8500_usb_regulator_{enable,disable} functions to control USB phy regulators on corresponding ab8500_usb_phy_{enable,disable} events. This contains some workaround and optimization for specific AB8500 versions. Signed-off-by: Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com> Signed-off-by: Sakethram Bommisetti <sakethram.bommisetti@stericsson.com> Signed-off-by: Praveena Nadahally <praveen.nadahally@stericsson.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-04-03usb: phy: ab8500-usb: split ab8500_usb_phy_ctrlFabio Baltieri
Split ab8500_usb_phy_ctrl into separate enable/disable functions to make the code more linear and readable. Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-04-03usb: phy: ab8500-usb: add regulator supportFabio Baltieri
Add initial regulator support to ab8500-usb by introducing necessary devm_regulator_get(). Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-04-03usb: phy: ab8500-usb: fix eye diagram for ab8500 v2.0Sakethram Bommisetti
AB8500 v2.0 has eye diagram issues when drawing more than 100mA from VBUS. Force charging current to 100mA in case of standard host. Signed-off-by: Sakethram Bommisetti <sakethram.bommisetti@stericsson.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-04-03usb: phy: ab8500-usb: set phy tuning valuesSakethram Bommisetti
Set phy tuning values proposed by the hardware teams for AB8500 and AB8505 to improve USB eye diagram performances. Signed-off-by: Sakethram Bommisetti <sakethram.bommisetti@stericsson.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-04-03usb: phy: ab8500-usb: convert to devm_kzallocFabio Baltieri
Convert local data allocation to devm_kzalloc and drop unnecessary fail path code. Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18usb: phy: ab8500-usb: update irq handling codeFabio Baltieri
Update irq handling code to notify all possible link status changes of AB8500 and AB8505 to the ux500-musb glue driver. The additional event codes will be used for pm-runtime implementation, and are defined in a separate ux500-specific header. This also modify the irq registration code to use devm_* helpers and drop all non necessary fail path code. Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18usb: otg: ab8500-usb: drop support for ab8500 pre v2.0Fabio Baltieri
AB8500 versions preceding 2.0 were only used internally by ST-Ericsson and are not supported anymore. This patch drops all v1.0 and v1.1 support code. Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18usb: phy: rename all phy drivers to phy-$name-usb.cFelipe Balbi
this will make sure that we have sensible names for all phy drivers. Current situation was already quite bad with too generic names being used. Signed-off-by: Felipe Balbi <balbi@ti.com>
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