17 Nov, 2016
1 commit
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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 467d5c980709 ("usb: musb: Implement session bit
based runtime PM for musb-core") as before that all the
glue layers implemented their own PM.Fixes: 467d5c980709 ("usb: musb: Implement session bit based
runtime PM for musb-core")
Tested-by: Ladislav Michl
Tested-by: Laurent Pinchart
Signed-off-by: Tony Lindgren
Acked-by: Kishon Vijay Abraham I
Signed-off-by: Bin Liu
Signed-off-by: Greg Kroah-Hartman
05 Nov, 2016
3 commits
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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: b3e0d141ca9f (phy: sun4i: add support for A64 usb phy)
Signed-off-by: Icenowy Zheng
Acked-by: Maxime Ripard
Reviewed-by: Hans de Goede
Signed-off-by: Kishon Vijay Abraham I -
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
Reviewed-by: Heiko Stuebner
Signed-off-by: Kishon Vijay Abraham I -
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
Signed-off-by: Kishon Vijay Abraham I
14 Sep, 2016
2 commits
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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
Acked-by: Tony Lindgren
Signed-off-by: Kishon Vijay Abraham I -
setting twl->linkstat = MUSB_UNKNOWN upon error in musb_mailbox as
introduced in
commit 12b7db2bf8b8 ("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
Tested-by: Tony Lindgren
Signed-off-by: Kishon Vijay Abraham I
10 Sep, 2016
25 commits
-
The musb driver calls into this phy driver to disable/enable squelch
detection. This function was introduced in 24fe86a617c5 ("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
[] (unwind_backtrace) from [] (show_stack+0xb/0xc)
[] (show_stack) from [] (dump_stack+0x67/0x74)
[] (dump_stack) from [] (mutex_lock+0x15/0x2c)
[] (mutex_lock) from [] (sun4i_usb_phy_write+0x39/0xec)
[] (sun4i_usb_phy_write) from [] (musb_port_reset+0xfb/0x184)
[] (musb_port_reset) from [] (musb_deassert_reset+0x1f/0x2c)
[] (musb_deassert_reset) from [] (process_one_work+0x129/0x2b8)
[] (process_one_work) from [] (worker_thread+0xf3/0x424)
[] (worker_thread) from [] (kthread+0xa1/0xb8)
[] (kthread) from [] (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: ba4bdc9e1dc0 ("PHY: sunxi: Add driver for sunxi usb phy")
Cc: Hans de Goede
Cc: stable@vger.kernel.org
Signed-off-by: Chen-Yu Tsai
Reviewed-by: Hans de Goede
Signed-off-by: Kishon Vijay Abraham I -
It is a hardware bug in RK3288, the only way to solve it is to
reset the phy.Signed-off-by: Randy Li
Signed-off-by: Kishon Vijay Abraham I -
The only use for this is for solving a hardware design problem in
usb of Rockchip RK3288.Signed-off-by: Randy Li
Reviewed-by: Heiko Stuebner
Signed-off-by: Kishon Vijay Abraham I -
Warn when external vbus is detected when we're trying to enable our
own vbus.Signed-off-by: Hans de Goede
Signed-off-by: Kishon Vijay Abraham I -
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
Signed-off-by: Kishon Vijay Abraham I -
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
Signed-off-by: Kishon Vijay Abraham I -
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
Signed-off-by: Kishon Vijay Abraham I -
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
Signed-off-by: Kishon Vijay Abraham I -
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
Signed-off-by: Kishon Vijay Abraham I -
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
Reviewed-by: Hans de Goede
Fixes: b33ecca87df9 ("phy-sun4i-usb: Add support for peripheral-only mode")
Signed-off-by: Kishon Vijay Abraham I -
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
Signed-off-by: Kever Yang
Reviewed-by: Guenter Roeck
Tested-by: Guenter Roeck
Signed-off-by: Kishon Vijay Abraham I -
The syscon device in board config/device tree has been renamed.
Signed-off-by: David Lechner
Signed-off-by: Kishon Vijay Abraham I -
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
Signed-off-by: Kishon Vijay Abraham I
Reviewed-by: Guenter Roeck
Reviewed-by: Heiko Stuebner -
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
Signed-off-by: Roger Quadros
Signed-off-by: Kishon Vijay Abraham I -
This driver can support for r8a7796 SoC. So, this patch adds it.
Signed-off-by: Yoshihiro Shimoda
Acked-by: Geert Uytterhoeven
Acked-by: Rob Herring
Signed-off-by: Kishon Vijay Abraham I -
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
Reviewed-and-tested-by: Jon Mason
Reviewed-by: Pramod Kumar
Signed-off-by: Kishon Vijay Abraham I -
By setting phy_set_drvdata(phy, mdiodev), struct ns2_pci_phy can be
removed.Signed-off-by: Axel Lin
Reviewed-and-tested-by: Jon Mason
Reviewed-by: Pramod Kumar
Signed-off-by: Kishon Vijay Abraham I -
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
Acked-by: Arnd Bergmann
Acked-by: Thierry Reding
Signed-off-by: Kishon Vijay Abraham I -
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
Acked-by: Arnd Bergmann
Acked-by: Thierry Reding
Signed-off-by: Kishon Vijay Abraham I -
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
Signed-off-by: Kishon Vijay Abraham I -
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
Suggested-by: Heiko Stuebner
Suggested-by: Guenter Roeck
Suggested-by: Doug Anderson
Reviewed-by: Heiko Stuebner
Reviewed-by: Guenter Roeck
Signed-off-by: Kishon Vijay Abraham I -
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/)//
@@
expression e1,e2,x;
@@
- if (of_get_property(e1,e2,NULL))
- x = true;
- else
- x = false;
+ x = of_property_read_bool(e1,e2);
//Signed-off-by: Julia Lawall
Signed-off-by: Kishon Vijay Abraham I -
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
Signed-off-by: Kishon Vijay Abraham I -
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
Signed-off-by: Kishon Vijay Abraham I -
The 'reg' local variable does not need to be static.
Signed-off-by: Axel Lin
Reviewed-by: Krzysztof Kozlowski
Signed-off-by: Kishon Vijay Abraham I
12 Aug, 2016
3 commits
-
This is likely that checking 'phy->hsic_clk' instead of 'phy->clk' is
expected here.Signed-off-by: Christophe JAILLET
Acked-by: Chen-Yu Tsai -
Return proper error instead of 0 if brcm_sata_phy_init fails.
Signed-off-by: Axel Lin
Signed-off-by: Kishon Vijay Abraham I -
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
Acked-by: Kishon Vijay Abraham I
Signed-off-by: Kishon Vijay Abraham I
01 Aug, 2016
1 commit
-
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 fixesMMC 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
...
28 Jul, 2016
1 commit
-
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
...
27 Jul, 2016
1 commit
-
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
...
25 Jul, 2016
3 commits
-
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
Acked-by: Kishon Vijay Abraham I
Signed-off-by: Ulf Hansson -
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
Reviewed-by: Kishon Vijay Abraham I
Signed-off-by: Ulf Hansson -
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
Acked-by: Kishon Vijay Abraham I
Reviewed-by: Heiko Stuebner
Signed-off-by: Ulf Hansson
