Commit graph

433 commits

Author SHA1 Message Date
Tony Lindgren
f7c4a46352 phy: twl4030-usb: Fix for musb session bit based PM
Now with musb driver implementing generic session bit based
PM, we need to have the USB PHYs behaving in a sane way for
platforms implementing PM.

Currently twl4030-usb enables PM in twl4030_phy_power_on()
and then disables it in twl4030_phy_power_off(). This will
block PM runtime for the SoC when no cable is connected.

Fix the issue by moving PM runtime autosuspend call to
happen where it gets called in twl4030_phy_power_on().

Note that this patch should not be backported to anything
before commit 467d5c9807 ("usb: musb: Implement session bit
based runtime PM for musb-core") as before that all the
glue layers implemented their own PM.

Fixes: 467d5c9807 ("usb: musb: Implement session bit based
runtime PM for musb-core")
Tested-by: Ladislav Michl <ladis@linux-mips.org>
Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-11-17 16:25:40 +01:00
Icenowy Zheng
4320f9d4c1 phy: sun4i: check PMU presence when poking unknown bit of pmu
Allwinner SoC's PHY 0, when used as OTG controller, have no pmu part.
The code that poke some unknown bit of PMU for H3/A64 didn't check
the PHY, and will cause kernel oops when PHY 0 is used.

This patch will check whether the pmu is not NULL before poking.

Fixes: b3e0d141ca (phy: sun4i: add support for A64 usb phy)

Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-11-05 13:45:02 +05:30
Shawn Lin
232c260982 phy-rockchip-pcie: remove deassert of phy_rst from exit callback
The deassert of phy_rst from exit callback is incorrect as when
doing phy_exit, we expect the phy_rst is on asserted state which was
done by power_off callback, but not deasserted state. Meanwhile when
disabling clk_pciephy_ref, the assert/deassert signal can't actually
take effect on the phy. So let's fix it anyway.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-11-05 13:45:02 +05:30
Axel Haslam
766325427f phy: da8xx-usb: rename the ohci device to ohci-da8xx
The ohci device name has changed in the board configuraion files,
hence, change the phy lookup table to match the new name.

Signed-off-by: Axel Haslam <ahaslam@baylibre.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-11-05 13:45:02 +05:30
Andreas Kemnade
b78ea84a7d phy-twl4030-usb: initialize charging-related stuff via pm_runtime
twl4030_phy_power_on() initializes some bits which are required for
charging. As they are not set in twl4030_usb_runtime_resume()
a call to pm_runtime_get_sync() is not sufficient to enable charging.

This patch moves the initialization to twl4030_usb_runtime_resume()
so everything needed for charging is initialized upon
pm_runtime_get_sync().

That also gives improved possibilities to debug problems in that area
because the relevant parts can be checked separately. Charging can be
enabled without having the musb subsystem active.

As a side effect this hides some bugs in musb which causes
unbalanced calls to phy_power_off()/phy_power_on() so that
phy->power_count becomes -1.

The result is that e.g. the GTA04 phone (dm3730 + twl4030) works
finally as a usb gadget again and charging is working.

Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-14 10:59:12 +05:30
Andreas Kemnade
78489c7c48 phy-twl4030-usb: better handle musb_mailbox() failure
setting twl->linkstat = MUSB_UNKNOWN upon error in musb_mailbox as
introduced in
commit 12b7db2bf8 ("usb: musb: Return error value from musb_mailbox")
causes twl4030_usb_irq() to not detect a state change form cable connected
to cable disconnected after such an error so that
pm_runtime_put_autosuspend() will not be called and the usage counter
gets unbalanced. Such errors happen e.g. if the omap2430 module is not
(yet) loaded during plug/unplug events.

This patch introduces a flag instead that indicates whether there is
information for the musb_mailbox pending and calls musb_mailbox() if
that flag is set.

Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
Tested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-14 10:59:11 +05:30
Chen-Yu Tsai
919ab2524c phy: sun4i-usb: Use spinlock to guard phyctl register access
The musb driver calls into this phy driver to disable/enable squelch
detection. This function was introduced in 24fe86a617 ("phy: sun4i-usb:
Add a sunxi specific function for setting squelch-detect"). This
function in turn calls sun4i_usb_phy_write, which uses a mutex to
guard the common access register. Unfortunately musb does this
in atomic context, which results in the following warning with lock
debugging enabled:

BUG: sleeping function called from invalid context at kernel/locking/mutex.c:97
in_atomic(): 1, irqs_disabled(): 128, pid: 96, name: kworker/0:2
CPU: 0 PID: 96 Comm: kworker/0:2 Not tainted 4.8.0-rc4-00181-gd502f8ad1c3e #13
Hardware name: Allwinner sun8i Family
Workqueue: events musb_deassert_reset
[<c010bc01>] (unwind_backtrace) from [<c0109237>] (show_stack+0xb/0xc)
[<c0109237>] (show_stack) from [<c02a669b>] (dump_stack+0x67/0x74)
[<c02a669b>] (dump_stack) from [<c05d68c9>] (mutex_lock+0x15/0x2c)
[<c05d68c9>] (mutex_lock) from [<c02c3589>] (sun4i_usb_phy_write+0x39/0xec)
[<c02c3589>] (sun4i_usb_phy_write) from [<c03e6327>] (musb_port_reset+0xfb/0x184)
[<c03e6327>] (musb_port_reset) from [<c03e4917>] (musb_deassert_reset+0x1f/0x2c)
[<c03e4917>] (musb_deassert_reset) from [<c012ecb5>] (process_one_work+0x129/0x2b8)
[<c012ecb5>] (process_one_work) from [<c012f5e3>] (worker_thread+0xf3/0x424)
[<c012f5e3>] (worker_thread) from [<c0132dbd>] (kthread+0xa1/0xb8)
[<c0132dbd>] (kthread) from [<c0105f31>] (ret_from_fork+0x11/0x20)

Since the register access is mmio, we can use a spinlock to guard this
specific access, rather than the mutex that guards the entire phy.

Fixes: ba4bdc9e1d ("PHY: sunxi: Add driver for sunxi usb phy")
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 17:43:38 +05:30
Randy Li
0f74ab59ce phy: rockchip-usb: use rockchip_usb_phy_reset to reset phy during wakeup
It is a hardware bug in RK3288, the only way to solve it is to
reset the phy.

Signed-off-by: Randy Li <ayaka@soulik.info>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 17:31:40 +05:30
Randy Li
cac18ecb6f phy: Add reset callback
The only use for this is for solving a hardware design problem in
usb of Rockchip RK3288.

Signed-off-by: Randy Li <ayaka@soulik.info>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 17:31:39 +05:30
Hans de Goede
91d6e3b6bc phy-sun4i-usb: Warn when external vbus is detected
Warn when external vbus is detected when we're trying to enable our
own vbus.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 17:15:19 +05:30
Hans de Goede
6ba43c2919 phy-sun4i-usb: Add support for phy_set_mode
Together with some musb sunxi glue changes this allows run-time dr_mode
switching support via the "mode" musb sysfs attribute.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 17:15:19 +05:30
Hans de Goede
5f90d31cab phy-sun4i-usb: Simplify missing dr_mode handling
If we cannot get dr_mode or no id gpio is specified simply assume
peripheral mode, as this is always safe.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 17:15:19 +05:30
Hans de Goede
36f9159ba9 phy-sun4i-usb: Refactor forced session ending
The phy-sun4i-usb code supports forced ending a session on systems
which lack Vbus detection, to allow switching between host and peripheral
mode on such systems.

Role switching via the musb driver "mode" sysfs attribute requires force
ending the session too. This commit refactors the code to allow other
parts of the phy-sun4i-usb code to request a forced session end.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 17:15:19 +05:30
Hans de Goede
9745ceebc4 phy-sun4i-usb: Use bool where appropriate
We're using bool as true/false type in most places in phy-sun4i-usb.c
for consistency fixup the remaining uses of ints which are ever only
0 or 1 to be bools too.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 17:15:19 +05:30
Chris Zhong
2a4d59625b phy: rockchip-typec: add pm runtime support
Adds pm_runtime support for rockchip Type-C, so that power domain is
enabled only when there is a transaction going on to help save power.

Signed-off-by: Chris Zhong <zyw@rock-chips.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 17:13:29 +05:30
Arnd Bergmann
cddbc4b7ef usb: phy: add USB_SUPPORT dependency
The driver now calls of_usb_get_dr_mode_by_phy, which is part of the
USB core layer, and it fails to build when that is not provided:

drivers/phy/phy-sun4i-usb.o: In function `sun4i_usb_phy_probe':
phy-sun4i-usb.c:(.text.sun4i_usb_phy_probe+0x140): undefined reference to `of_usb_get_dr_mode_by_phy'

We already have a couple of other PHY drivers with a dependency
on USB_SUPPORT, so that seems to be the easiest fix here.

An alternative would be to adjust the #ifdef in include/linux/usb/of.h
to also check for CONFIG_USB_SUPPORT.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Fixes: b33ecca87d ("phy-sun4i-usb: Add support for peripheral-only mode")
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 17:12:58 +05:30
Chris Zhong
e96be45cb8 phy: Add USB Type-C PHY driver for rk3399
Add a PHY provider driver for the rk3399 SoC Type-c PHY. The USB
Type-C PHY is designed to support the USB3 and DP applications.
The USB3 operates in SuperSpeed mode and the DP can operate at RBR,
HBR and HBR2 data rates. This driver create 2 PHY devices separately
for USB3 and DisplyPort, and registers them under the child node.

Signed-off-by: Chris Zhong <zyw@rock-chips.com>
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Guenter Roeck <groeck@chromium.org>
Tested-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 16:49:01 +05:30
David Lechner
4033d95218 phy: da8xx-usb: Fix syscon device name
The syscon device in board config/device tree has been renamed.

Signed-off-by: David Lechner <david@lechnology.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 16:49:00 +05:30
Frank Wang
3fa295667a phy: rockchip-inno-usb2: add COMMON_CLK dependency
On kernel builds without COMMON_CLK, the newly added rockchip-inno-usb2
driver fails to build:

drivers/phy/phy-rockchip-inno-usb2.c:124:16: error: field 'clk480m_hw'
has incomplete type
   struct clk_hw clk480m_hw;

In file included from include/linux/clk.h:16:0
                 from drivers/phy/phy-rockchip-inno-usb2.c:17:
include/linux/kernel.h:831:48: error: initialization from incompatible
pointer type [-Werror=incompatible-pointer-types]
   const typeof( ((type *)0)->member ) *__mptr = (ptr); \

  ... ...

Signed-off-by: Frank Wang <frank.wang@rock-chips.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
2016-09-10 16:48:41 +05:30
Sekhar Nori
80fc6660ca phy: omap-usb2: support suspend/resume
Relying on PM-ops for shutting down PHY clocks was a
bad idea since the users (e.g. USB DWC3) might not
have been suspended by then.

Get rid of all PM-ops. It is the sole responsibility
of the PHY user to properly turn OFF and de-initialize
the PHY as part of its suspend routine.

Enable/disable PHY clock as part of ->init()/->exit()
call respectively. With this phy_init() and phy_exit()
can be called by PHY user during suspend/resume.

This is similar to what is done for ti-pipe3 driver.
See 31c8954efb1b ("phy: ti-pipe3: fix suspend")

The pm_runtime_enable() call in omap_usb2_probe()
is still required because without it, phy_create()
will not enable runtime PM on the phy device it
creates and phy_init() will not call
pm_runtime_get_sync().

Without pm_runtime_get_sync(), ocp2scp hwmod will
_not_ enable the IP and, thus, we will have abort
exceptions.

Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 16:48:39 +05:30
Yoshihiro Shimoda
800dcc307d phy: rcar-gen3-usb2: Add a compatible string for r8a7796
This driver can support for r8a7796 SoC. So, this patch adds it.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 16:48:38 +05:30
Axel Lin
5ed0e74104 phy: bcm-ns2-pcie: Set missing .owner field in ns2_pci_phy_ops
Add missing .owner field in ns2_pci_phy_ops, which is used for refcounting.
While at it, also makes ns2_pci_phy_ops const as it's never get modified.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-and-tested-by: Jon Mason <jon.mason@broadcom.com>
Reviewed-by: Pramod Kumar <pramodku@broadcom.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 16:48:36 +05:30
Axel Lin
b9d0397fef phy: bcm-ns2-pcie: Get rid of struct ns2_pci_phy
By setting phy_set_drvdata(phy, mdiodev), struct ns2_pci_phy can be
removed.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-and-tested-by: Jon Mason <jon.mason@broadcom.com>
Reviewed-by: Pramod Kumar <pramodku@broadcom.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 16:48:36 +05:30
Baoyou Xie
713b3ce9a3 phy: tegra: mark tegra_xusb_lane_lookup_function() static
We get 1 warning when building kernel with W=1:
drivers/phy/tegra/xusb.c:104:5: warning: no previous prototype for 'tegra_xusb_lane_lookup_function' [-Wmissing-prototypes]

In fact, this function is only used in the file in which it is
declared and don't need a declaration, but can be made static.
So this patch marks it 'static'.

Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 16:48:35 +05:30
Baoyou Xie
0674b440b8 phy: tegra: add missing header dependencies
We get 5 warnings when building kernel with W=1:
drivers/phy/tegra/xusb.c:948:27: warning: no previous prototype for 'tegra_xusb_padctl_get' [-Wmissing-prototypes]
drivers/phy/tegra/xusb.c:981:6: warning: no previous prototype for 'tegra_xusb_padctl_put' [-Wmissing-prototypes]
drivers/phy/tegra/xusb.c:988:5: warning: no previous prototype for 'tegra_xusb_padctl_usb3_save_context' [-Wmissing-prototypes]
drivers/phy/tegra/xusb.c:998:5: warning: no previous prototype for 'tegra_xusb_padctl_hsic_set_idle' [-Wmissing-prototypes]
drivers/phy/tegra/xusb.c:1008:5: warning: no previous prototype for 'tegra_xusb_padctl_usb3_set_lfps_detect' [-Wmissing-prototypes]

In fact, these functions are declared in linux/phy/tegra/xusb.h,
so this patch adds missing header dependencies.

Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 16:48:34 +05:30
Shawn Lin
fcffee3d54 phy: add a driver for the Rockchip SoC internal PCIe PHY
This patch to add a generic PHY driver for rockchip PCIe PHY.
Access the PHY via registers provided by GRF (general register
files) module.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 16:48:33 +05:30
Frank Wang
0e08d2a727 phy: rockchip-inno-usb2: add a new driver for Rockchip usb2phy
The newer SoCs (rk3366, rk3399) take a different usb-phy IP block
than rk3288 and before, and most of phy-related registers are also
different from the past, so a new phy driver is required necessarily.

Signed-off-by: Frank Wang <frank.wang@rock-chips.com>
Suggested-by: Heiko Stuebner <heiko@sntech.de>
Suggested-by: Guenter Roeck <linux@roeck-us.net>
Suggested-by: Doug Anderson <dianders@chromium.org>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 16:48:31 +05:30
Julia Lawall
3ea981ed81 phy: qcom-ufs: use of_property_read_bool
Use of_property_read_bool to check for the existence of a property.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression e1,e2,x;
@@
-	if (of_get_property(e1,e2,NULL))
-		x = true;
-	else
-		x = false;
+	x = of_property_read_bool(e1,e2);
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 16:48:29 +05:30
Rafał Miłecki
e5666281d9 phy: bcm-ns-usb3: new driver for USB 3.0 PHY on Northstar
Northstar is a family of SoCs used in home routers. They have USB 2.0
and 3.0 controllers with PHYs that need to be properly initialized.
This driver provides PHY init support in a generic way and can be bound
with XHCI controller driver.

There aren't any public datasheets from Broadcom so we can't have nice
defines for all used bits. It means we just follow Broadcom's
initialization procedure using their magic values. We were quite lucky
actually that Broadcom put some comments in their SDK reference code
explaining what given writes are responsible for.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 16:48:28 +05:30
Icenowy Zheng
b3e0d141ca phy: sun4i: add support for A64 usb phy
There's something unknown in the pmu part that shared with H3.
It's renamed as PMU_UNK1 from PMU_UNK_H3.

Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 16:48:27 +05:30
Axel Lin
d223472505 phy: exynos5-usbdrd: Remove "static" from local variable
The 'reg' local variable does not need to be static.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 16:48:25 +05:30
Christophe JAILLET
017300da3a phy: sun9i-usb: fix error handling
This is likely that checking 'phy->hsic_clk' instead of 'phy->clk' is
expected here.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Chen-Yu Tsai <wens@csie.org
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-08-12 14:59:10 +05:30
Axel Lin
bf8ca651e1 phy: brcm-sata: Return proper error if brcm_sata_phy_init fails
Return proper error instead of 0 if brcm_sata_phy_init fails.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-08-12 14:59:10 +05:30
Hans de Goede
b33ecca87d phy-sun4i-usb: Add support for peripheral-only mode
Use the new of_usb_get_dr_mode_by_phy() function to get the dr_mode
from the musb controller node instead of assuming that having an id_det
gpio means otg mode, and not having one means host mode.

Implement peripheral-only mode by adding a sun4i_usb_phy0_get_id_det
helper which looks at the dr_mode, always registering our extcon and
always monitoring vbus.

If dr_mode is not specified in the dts, do not register phy0 as we then
do not know how to treat it. This is actually a good thing as this means
we will not be registering phy0 on devices where the otg controller is
not enabled in the devicetree.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-08-12 14:59:10 +05:30
Linus Torvalds
07f00f06ba MMC core:
- A couple of changes to improve the support for erase/discard/trim cmds
  - Add eMMC HS400 enhanced strobe support
  - Show OCR and DSR registers in SYSFS for MMC/SD cards
  - Correct and improve busy detection logic for MMC switch (CMD6) cmds
  - Disable HPI cmds for certain broken Hynix eMMC cards
  - Allow MMC hosts to specify non-support for SD and MMC cmds
  - Some minor additional fixes
 
 MMC host:
  - sdhci: Re-works, fixes and clean-ups
  - sdhci: Add HW auto re-tuning support
  - sdhci: Re-factor code to prepare for adding support for eMMC CMDQ
  - sdhci-esdhc-imx: Fixes and clean-ups
  - sdhci-esdhc-imx: Update system PM support
  - sdhci-esdhc-imx: Enable HW auto re-tuning
  - sdhci-bcm2835: Remove driver as sdhci-iproc is used instead
  - sdhci-brcmstb: Add new driver for Broadcom BRCMSTB SoCs
  - sdhci-msm: Add support for UHS cards
  - sdhci-tegra: Improve support for UHS cards
  - sdhci-of-arasan: Update phy support for Rockchip SoCs
  - sdhci-of-arasan: Deploy enhanced strobe support
  - dw_mmc: Some fixes and clean-ups
  - dw_mmc: Enable support for erase/discard/trim cmds
  - dw_mmc: Enable CMD23 support
  - mediatek: Some fixes related to the eMMC HS400 support
  - sh_mmcif: Improve support for HW busy detection
  - rtsx_pci: Enable support for erase/discard/trim cmds
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Merge tag 'mmc-v4.8' of git://git.linaro.org/people/ulf.hansson/mmc

Pull MMC updates from Ulf Hansson:
 "MMC core:
   - A couple of changes to improve the support for erase/discard/trim cmds
   - Add eMMC HS400 enhanced strobe support
   - Show OCR and DSR registers in SYSFS for MMC/SD cards
   - Correct and improve busy detection logic for MMC switch (CMD6) cmds
   - Disable HPI cmds for certain broken Hynix eMMC cards
   - Allow MMC hosts to specify non-support for SD and MMC cmds
   - Some minor additional fixes

  MMC host:
   - sdhci: Re-works, fixes and clean-ups
   - sdhci: Add HW auto re-tuning support
   - sdhci: Re-factor code to prepare for adding support for eMMC CMDQ
   - sdhci-esdhc-imx: Fixes and clean-ups
   - sdhci-esdhc-imx: Update system PM support
   - sdhci-esdhc-imx: Enable HW auto re-tuning
   - sdhci-bcm2835: Remove driver as sdhci-iproc is used instead
   - sdhci-brcmstb: Add new driver for Broadcom BRCMSTB SoCs
   - sdhci-msm: Add support for UHS cards
   - sdhci-tegra: Improve support for UHS cards
   - sdhci-of-arasan: Update phy support for Rockchip SoCs
   - sdhci-of-arasan: Deploy enhanced strobe support
   - dw_mmc: Some fixes and clean-ups
   - dw_mmc: Enable support for erase/discard/trim cmds
   - dw_mmc: Enable CMD23 support
   - mediatek: Some fixes related to the eMMC HS400 support
   - sh_mmcif: Improve support for HW busy detection
   - rtsx_pci: Enable support for erase/discard/trim cmds"

* tag 'mmc-v4.8' of git://git.linaro.org/people/ulf.hansson/mmc: (135 commits)
  mmc: rtsx_pci: Remove deprecated create_singlethread_workqueue
  mmc: rtsx_pci: Enable MMC_CAP_ERASE to allow erase/discard/trim requests
  mmc: rtsx_pci: Use the provided busy timeout from the mmc core
  mmc: sdhci-pltfm: Drop define for SDHCI_PLTFM_PMOPS
  mmc: sdhci-pltfm: Convert to use the SET_SYSTEM_SLEEP_PM_OPS
  mmc: sdhci-pltfm: Make sdhci_pltfm_suspend|resume() static
  mmc: sdhci-esdhc-imx: Use common sdhci_suspend|resume_host()
  mmc: sdhci-esdhc-imx: Assign system PM ops within #ifdef CONFIG_PM_SLEEP
  mmc: sdhci-sirf: Remove non needed #ifdef CONFIG_PM* for dev_pm_ops
  mmc: sdhci-s3c: Remove non needed #ifdef CONFIG_PM for dev_pm_ops
  mmc: sdhci-pxav3: Remove non needed #ifdef CONFIG_PM for dev_pm_ops
  mmc: sdhci-of-esdhc: Simplify code by using SIMPLE_DEV_PM_OPS
  mmc: sdhci-acpi: Simplify code by using SET_SYSTEM_SLEEP_PM_OPS
  mmc: sdhci-pci-core: Simplify code by using SET_SYSTEM_SLEEP_PM_OPS
  mmc: Change the max discard sectors and erase response when HW busy detect
  phy: rockchip-emmc: Wait even longer for the DLL to lock
  phy: rockchip-emmc: Be tolerant to card clock of 0 in power on
  mmc: sdhci-of-arasan: Revert: Always power the PHY off/on when clock changes
  mmc: sdhci-msm: Add support for UHS cards
  mmc: sdhci-msm: Add set_uhs_signaling() implementation
  ...
2016-07-31 21:36:58 -04:00
Linus Torvalds
468fc7ed55 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:

 1) Unified UDP encapsulation offload methods for drivers, from
    Alexander Duyck.

 2) Make DSA binding more sane, from Andrew Lunn.

 3) Support QCA9888 chips in ath10k, from Anilkumar Kolli.

 4) Several workqueue usage cleanups, from Bhaktipriya Shridhar.

 5) Add XDP (eXpress Data Path), essentially running BPF programs on RX
    packets as soon as the device sees them, with the option to mirror
    the packet on TX via the same interface.  From Brenden Blanco and
    others.

 6) Allow qdisc/class stats dumps to run lockless, from Eric Dumazet.

 7) Add VLAN support to b53 and bcm_sf2, from Florian Fainelli.

 8) Simplify netlink conntrack entry layout, from Florian Westphal.

 9) Add ipv4 forwarding support to mlxsw spectrum driver, from Ido
    Schimmel, Yotam Gigi, and Jiri Pirko.

10) Add SKB array infrastructure and convert tun and macvtap over to it.
    From Michael S Tsirkin and Jason Wang.

11) Support qdisc packet injection in pktgen, from John Fastabend.

12) Add neighbour monitoring framework to TIPC, from Jon Paul Maloy.

13) Add NV congestion control support to TCP, from Lawrence Brakmo.

14) Add GSO support to SCTP, from Marcelo Ricardo Leitner.

15) Allow GRO and RPS to function on macsec devices, from Paolo Abeni.

16) Support MPLS over IPV4, from Simon Horman.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1622 commits)
  xgene: Fix build warning with ACPI disabled.
  be2net: perform temperature query in adapter regardless of its interface state
  l2tp: Correctly return -EBADF from pppol2tp_getname.
  net/mlx5_core/health: Remove deprecated create_singlethread_workqueue
  net: ipmr/ip6mr: update lastuse on entry change
  macsec: ensure rx_sa is set when validation is disabled
  tipc: dump monitor attributes
  tipc: add a function to get the bearer name
  tipc: get monitor threshold for the cluster
  tipc: make cluster size threshold for monitoring configurable
  tipc: introduce constants for tipc address validation
  net: neigh: disallow transition to NUD_STALE if lladdr is unchanged in neigh_update()
  MAINTAINERS: xgene: Add driver and documentation path
  Documentation: dtb: xgene: Add MDIO node
  dtb: xgene: Add MDIO node
  drivers: net: xgene: ethtool: Use phy_ethtool_gset and sset
  drivers: net: xgene: Use exported functions
  drivers: net: xgene: Enable MDIO driver
  drivers: net: xgene: Add backward compatibility
  drivers: net: phy: xgene: Add MDIO driver
  ...
2016-07-27 12:03:20 -07:00
Linus Torvalds
75a442efb1 Merge branch 'for-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
Pull libata updates from Tejun Heo:
 "libata saw quite a bit of activities in this cycle:

   - SMR drive support still being worked on

   - bug fixes and improvements to misc SCSI command emulation

   - some low level driver updates"

* 'for-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: (39 commits)
  libata-scsi: better style in ata_msense_*()
  AHCI: Clear GHC.IS to prevent unexpectly asserting INTx
  ata: sata_dwc_460ex: remove redundant dev_err call
  ata: define ATA_PROT_* in terms of ATA_PROT_FLAG_*
  libata: remove ATA_PROT_FLAG_DATA
  libata: remove ata_is_nodata
  ata: make lba_{28,48}_ok() use ATA_MAX_SECTORS{,_LBA48}
  libata-scsi: minor cleanup for ata_scsi_zbc_out_xlat
  libata-scsi: Fix ZBC management out command translation
  libata-scsi: Fix translation of REPORT ZONES command
  ata: Handle ATA NCQ NO-DATA commands correctly
  libata-eh: decode all taskfile protocols
  ata: fixup ATA_PROT_NODATA
  libsas: use ata_is_ncq() and ata_has_dma() accessors
  libata: use ata_is_ncq() accessors
  libata: return boolean values from ata_is_*
  libata-scsi: avoid repeated calculation of number of TRIM ranges
  libata-scsi: reject WRITE SAME (16) with n_block that exceeds limit
  libata-scsi: rename ata_msense_ctl_mode() to ata_msense_control()
  libata-scsi: fix D_SENSE bit relection in control mode page
  ...
2016-07-26 14:39:40 -07:00
Douglas Anderson
95cc46fee6 phy: rockchip-emmc: Wait even longer for the DLL to lock
Two times out of 2000 reboots I ran into the error message
"rockchip_emmc_phy_power: dllrdy timeout".  Presumably there is some
corner case where the DLL just takes a little longer to timeout.  Let's
give it even more time to handle these corner cases.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-07-25 10:38:00 +02:00
Douglas Anderson
4e2ea67086 phy: rockchip-emmc: Be tolerant to card clock of 0 in power on
It's possible that there are some reasons to turn the PHY on while the
clock is 0.  In this case we just won't wait for the DLL to lock.

This is a bit of a stopgap until we figure out exactly when we're
supposed to wait for the DLL to lock and when we're supposed to power
cycle the PHY.

Note: this patch should help with suspend/resume where the system will
try to turn the PHY back on when the clock is 0.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-07-25 10:38:00 +02:00
Douglas Anderson
52c0624a10 phy: rockchip-emmc: Set phyctrl_frqsel based on card clock
The "phyctrl_frqsel" is described in the Arasan datasheet [1] as "the
frequency range of DLL operation".  Although the Rockchip variant of
this PHY has different ranges than the reference Arasan PHY it appears
as if the functionality is similar.  We should set this phyctrl field
properly.

Note: as per Rockchip engineers, apparently the "phyctrl_frqsel" is
actually only useful in HS200 / HS400 modes even though the DLL itself
it used for some purposes in all modes.  See the discussion in the
earlier change in this series: ("mmc: sdhci-of-arasan: Always power the
PHY off/on when clock changes").  In any case, it shouldn't hurt to set
this always.

Note that this change should allow boards to run at HS200 / HS400 speed
modes while running at 100 MHz or 150 MHz.  In fact, running HS400 at
150 MHz (giving 300 MB/s) is the main motivation of this series, since
performance is still good but signal integrity problems are less
prevelant at 150 MHz.

[1]: https://arasan.com/wp-content/media/eMMC-5-1-Total-Solution_Rev-1-3.pdf

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-07-25 10:34:20 +02:00
Douglas Anderson
352051ef1f phy: rockchip-emmc: Minor code cleanup in rockchip_emmc_phy_power_on/off()
There's no reason to store the return value of rockchip_emmc_phy_power()
in a variable nor to check it.  Just return it.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-07-25 10:34:20 +02:00
Douglas Anderson
49f9ccd888 phy: rockchip-emmc: Increase lock time allowance
Previous PHY code waited a fixed amount of time for the DLL to lock at
power on time.  Unfortunately, the time for the DLL to lock is actually
a bit more dynamic and can be longer if the card clock is slower.

Instead of waiting a fixed 30 us, let's now dynamically wait until the
lock bit gets set.  We'll wait up to 10 ms which should be OK even if
the card clock is at the super slow 100 kHz.

On its own, this change makes the PHY power on code a little more
robust.  Before this change the PHY was relying on the eMMC code to make
sure the PHY was only powered on when the card clock was set to at least
50 MHz before, though this reliance wasn't documented anywhere.

This change will be even more useful in future changes where we actually
need to be able to wait for a DLL lock at slower clock speeds.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-07-25 10:34:16 +02:00
Brian Norris
675f65c444 phy: rockchip-emmc: reindent the register definitions
Some of the spacing was wrong (spaces instead of tabs), and due to
longer entries added later, the columns weren't aligned. Let's get
everything consistent.

Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-07-25 10:34:16 +02:00
Brian Norris
36b5d46026 phy: rockchip-emmc: configure default output tap delay
The output tap delay controls helps maintain the hold requirements for
eMMC. The exact value is dependent on the SoC and other factors, though
it isn't really an exact science. But the default of 0 is not very good,
as it doesn't give the eMMC much hold time, so let's bump up to 4
(approx 90 degree phase?). If we need to configure this any further
(e.g., based on board or speed factors), we may need to consider a
device tree representation.

Suggested-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-07-25 10:34:15 +02:00
Shawn Lin
d74857720d phy: rockchip-emmc: configure frequency range and drive impedance
Signal integrity analysis has suggested we set these values. Do this in
power_on(), so that they get reconfigured after suspend/resume.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-07-25 10:34:15 +02:00
Shawn Lin
4d54a25ba5 phy: rockchip-emmc: give DLL some extra time to be ready
According to the databook, 10.2us is the max time for dll to be ready to
work. However in testing, some chips need 20us for dll to be ready. This
patch adds some extra margin for dllrdy to be ready, fixing our
-ETIMEDOUT issues.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-07-25 10:34:14 +02:00
Greg Kroah-Hartman
ca2b6faeb9 phy: for 4.8 -rc1
*) Add a new phy_ops for setting the phy mode
 *) Add a new phy driver for DA8xx SoC USB PHY
 *) Minor fixes and cleanups
 
 Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
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Merge tag 'phy-for-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy into usb-testing

Kishon writes:

phy: for 4.8 -rc1

*) Add a new phy_ops for setting the phy mode
*) Add a new phy driver for DA8xx SoC USB PHY
*) Minor fixes and cleanups

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-07-14 12:03:50 +09:00
David S. Miller
30d0844bdc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
	drivers/net/ethernet/mellanox/mlx5/core/en.h
	drivers/net/ethernet/mellanox/mlx5/core/en_main.c
	drivers/net/usb/r8152.c

All three conflicts were overlapping changes.

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-06 10:35:22 -07:00
Greg Kroah-Hartman
c318a821b9 Merge 4.7-rc6 into usb-next
We want the USB fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-07-04 08:19:21 -07:00
Yoshihiro Shimoda
c14f8a4032 phy: rcar-gen3-usb2: fix mutex_lock calling in interrupt
This patch fixes an issue that the extcon_set_cable_state_() is possible
to cause "BUG: scheduling while atomic" because this driver calls
extcon_set_cable_state_() in the interrupt handler and mutex_lock()
is possible to be called by like the following call trace.
So, this patch adds a workqueue function to resolve this issue.

[    9.706504] BUG: scheduling while atomic: systemd-journal/25893/0x00010303
[    9.714569] Modules linked in:
[    9.717629] CPU: 0 PID: 25893 Comm: systemd-journal Not tainted 4.7.0-rc4+ #86
[    9.724844] Hardware name: Renesas Salvator-X board based on r8a7795 (DT)
[    9.731624] Call trace:
[    9.734077] [<ffff0000080889f0>] dump_backtrace+0x0/0x1a8
[    9.739470] [<ffff000008088bac>] show_stack+0x14/0x20
[    9.744520] [<ffff000008348ab4>] dump_stack+0x94/0xb8
[    9.749568] [<ffff0000080da18c>] __schedule_bug+0x44/0x58
[    9.754966] [<ffff0000087c6394>] __schedule+0x4e4/0x598
[    9.760185] [<ffff0000087c6484>] schedule+0x3c/0xa8
[    9.765057] [<ffff0000087c6928>] schedule_preempt_disabled+0x20/0x38
[    9.771408] [<ffff0000080f20dc>] mutex_optimistic_spin+0x18c/0x1d0
[    9.777583] [<ffff0000087c7ef0>] __mutex_lock_slowpath+0x38/0x140
[    9.783669] [<ffff0000087c803c>] mutex_lock+0x44/0x60
[    9.788717] [<ffff00000834ca48>] kobject_uevent_env+0x250/0x500
[    9.794634] [<ffff0000086ae8c0>] extcon_update_state+0x220/0x298
[    9.800634] [<ffff0000086ae9d8>] extcon_set_cable_state_+0x78/0x88
[    9.806812] [<ffff000008376004>] rcar_gen3_device_recognition+0x5c/0xe0
[    9.813420] [<ffff0000083761bc>] rcar_gen3_phy_usb2_irq+0x3c/0x48
[    9.819509] [<ffff0000080fae94>] handle_irq_event_percpu+0x94/0x140
[    9.825769] [<ffff0000080faf88>] handle_irq_event+0x48/0x78
[    9.831334] [<ffff0000080fe620>] handle_fasteoi_irq+0xb8/0x1b0
[    9.837162] [<ffff0000080fa3c4>] generic_handle_irq+0x24/0x38
[    9.842900] [<ffff0000080fa6fc>] __handle_domain_irq+0x5c/0xb8
[    9.848727] [<ffff000008081520>] gic_handle_irq+0x58/0xb0

Reported-by: Simon Horman <horms@verge.net.au>
Fixes: 2b38543c8d ("phy: rcar-gen3-usb2: add extcon support")
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-07-04 18:07:39 +05:30