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commit b246caa68037aa495390a60d080acaeb84f45fff upstream.
The USB2 Bias Pad Control register manages analog parameters for signal
detection. Previously, the HS_DISCON_LEVEL relied on hardware reset
values, which may lead to the detection failure.
Explicitly configure HS_DISCON_LEVEL to 0x7. This ensures the disconnect
threshold is sufficient to guarantee reliable detection.
Fixes: bbf711682cd5 ("phy: tegra: xusb: Add Tegra186 support")
Cc: stable@vger.kernel.org
Signed-off-by: Wayne Chang <waynec@nvidia.com>
Link: https://patch.msgid.link/20251212032116.768307-1-waynec@nvidia.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 49ccab4bedd4779899246107dc19fb01c5b6fea3 upstream.
Currently, the PHY only registers the typec orientation switch when it
is built in. If the typec driver is built as a module, the switch
registration is skipped due to the preprocessor condition, causing
orientation detection to fail.
With commit
45fe729be9a6 ("usb: typec: Stub out typec_switch APIs when CONFIG_TYPEC=n")
the preprocessor condition is not needed anymore and the orientation
switch is correctly registered for both built-in and module builds.
Fixes: b58f0f86fd61 ("phy: fsl-imx8mq-usb: add tca function driver for imx95")
Cc: stable@vger.kernel.org
Suggested-by: Xu Yang <xu.yang_2@nxp.com>
Signed-off-by: Franz Schnyder <franz.schnyder@toradex.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Xu Yang <xu.yang_2@nxp.com>
Link: https://patch.msgid.link/20251126140136.1202241-1-fra.schnyder@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 028e8ca7b20fb7324f3e5db34ba8bd366d9d3acc upstream.
When the OTG USB port is used to power the SoC, configured as peripheral
and used in gadget mode, there is a disconnection about 6 seconds after the
gadget is configured and enumerated.
The problem was observed on a Radxa Rock Pi S board, which can only be
powered by the only USB-C connector. That connector is the only one usable
in gadget mode. This implies the USB cable is connected from before boot
and never disconnects while the kernel runs.
The problem happens because of the PHY driver code flow, summarized as:
* UDC start code (triggered via configfs at any time after boot)
-> phy_init
-> rockchip_usb2phy_init
-> schedule_delayed_work(otg_sm_work [A], 6 sec)
-> phy_power_on
-> rockchip_usb2phy_power_on
-> enable clock
-> rockchip_usb2phy_reset
* Now the gadget interface is up and running.
* 6 seconds later otg_sm_work starts [A]
-> rockchip_usb2phy_otg_sm_work():
if (B_IDLE state && VBUS present && ...):
schedule_delayed_work(&rport->chg_work [B], 0);
* immediately the chg_detect_work starts [B]
-> rockchip_chg_detect_work():
if chg_state is UNDEFINED:
if (!rport->suspended):
rockchip_usb2phy_power_off() <--- [X]
At [X], the PHY is powered off, causing a disconnection. This quickly
triggers a new connection and following re-enumeration, but any connection
that had been established during the 6 seconds is broken.
The code already checks for !rport->suspended (which, somewhat
counter-intuitively, means the PHY is powered on), so add a guard for VBUS
as well to avoid a disconnection when a cable is connected.
Fixes: 98898f3bc83c ("phy: rockchip-inno-usb2: support otg-port for rk3399")
Cc: stable@vger.kernel.org
Closes: https://lore.kernel.org/lkml/20250414185458.7767aabc@booty/
Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com>
Co-developed-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Reviewed-by: Théo Lebrun <theo.lebrun@bootlin.com>
Link: https://patch.msgid.link/20251127-rk3308-fix-usb-gadget-phy-disconnect-v2-1-dac8a02cd2ca@bootlin.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit f2ec4723defbc66a50e0abafa830ae9f8bceb0d7 upstream.
After U-Boot initializes PCIe with "pcie enum", Linux fails to detect
an NVMe disk on some boot cycles with:
phy phy-32f00000.pcie-phy.0: phy poweron failed --> -110
Discussion with NXP identified that the iMX8MP PCIe PHY PLL may fail to
lock when re-initialized without a reset cycle [1].
The issue reproduces on 7% of tested hardware platforms, with a 30-40%
failure rate per affected device across boot cycles.
Insert a reset cycle in the power-on routine to ensure the PHY is
initialized from a known state.
[1] https://community.nxp.com/t5/i-MX-Processors/iMX8MP-PCIe-initialization-in-U-Boot/m-p/2248437#M242401
Signed-off-by: Rafael Beims <rafael.beims@toradex.com>
Cc: stable@vger.kernel.org
Link: https://patch.msgid.link/20251223150254.1075221-1-rafael@beims.me
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit e07dea3de508cd6950c937cec42de7603190e1ca upstream.
The for_each_available_child_of_node() calls of_node_put() to
release child_np in each success loop. After breaking from the
loop with the child_np has been released, the code will jump to
the put_child label and will call the of_node_put() again if the
devm_request_threaded_irq() fails. These cause a double free bug.
Fix by returning directly to avoid the duplicate of_node_put().
Fixes: ed2b5a8e6b98 ("phy: phy-rockchip-inno-usb2: support muxed interrupts")
Cc: stable@vger.kernel.org
Signed-off-by: Wentao Liang <vulab@iscas.ac.cn>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20260109154626.2452034-1-vulab@iscas.ac.cn
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 4914d67da947031d6f645c81c74f7879e0844d5d upstream.
The mmio regmap that may be allocated during probe is never freed.
Switch to using the device managed allocator so that the regmap is
released on probe failures (e.g. probe deferral) and on driver unbind.
Fixes: 5ab90f40121a ("phy: ti: gmii-sel: Do not use syscon helper to build regmap")
Cc: stable@vger.kernel.org # 6.14
Cc: Andrew Davis <afd@ti.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Andrew Davis <afd@ti.com>
Link: https://patch.msgid.link/20251127134834.2030-1-johan@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 7d8f725b79e35fa47e42c88716aad8711e1168d8 upstream.
When the OTG USB port is used to power to SoC, configured as peripheral and
used in gadget mode, communication stops without notice about 6 seconds
after the gadget is configured and enumerated.
The problem was observed on a Radxa Rock Pi S board, which can only be
powered by the only USB-C connector. That connector is the only one usable
in gadget mode. This implies the USB cable is connected from before boot
and never disconnects while the kernel runs.
The related code flow in the PHY driver code can be summarized as:
* the first time chg_detect_work starts (6 seconds after gadget is
configured and enumerated)
-> rockchip_chg_detect_work():
if chg_state is UNDEFINED:
property_enable(base, &rphy->phy_cfg->chg_det.opmode, false); [Y]
* rockchip_chg_detect_work() changes state and re-triggers itself a few
times until it reaches the DETECTED state:
-> rockchip_chg_detect_work():
if chg_state is DETECTED:
property_enable(base, &rphy->phy_cfg->chg_det.opmode, true); [Z]
At [Y] all existing communications stop. E.g. using a CDC serial gadget,
the /dev/tty* devices are still present on both host and device, but no
data is transferred anymore. The later call with a 'true' argument at [Z]
does not restore it.
Due to the lack of documentation, what chg_det.opmode does exactly is not
clear, however by code inspection it seems reasonable that is disables
something needed to keep the communication working, and testing proves that
disabling these lines lets gadget mode keep working. So prevent changes to
chg_det.opmode when there is a cable connected (VBUS present).
Fixes: 98898f3bc83c ("phy: rockchip-inno-usb2: support otg-port for rk3399")
Cc: stable@vger.kernel.org
Closes: https://lore.kernel.org/lkml/20250414185458.7767aabc@booty/
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Reviewed-by: Théo Lebrun <theo.lebrun@bootlin.com>
Link: https://patch.msgid.link/20251127-rk3308-fix-usb-gadget-phy-disconnect-v2-2-dac8a02cd2ca@bootlin.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit fb21116099bbea1fc59efa9207e63c4be390ab72 ]
"family" is an enum, thus cast of pointer on 64-bit compile test with
clang W=1 causes:
phy-bcm-ns-usb3.c:206:17: error: cast to smaller integer type 'enum bcm_ns_family' from 'const void *' [-Werror,-Wvoid-pointer-to-enum-cast]
This was already fixed in commit bd6e74a2f0a0 ("phy: broadcom: ns-usb3:
fix Wvoid-pointer-to-enum-cast warning") but then got bad in commit
21bf6fc47a1e ("phy: Use device_get_match_data()").
Note that after various discussions the preferred cast is via "unsigned
long", not "uintptr_t".
Fixes: 21bf6fc47a1e ("phy: Use device_get_match_data()")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://patch.msgid.link/20251224115533.154162-2-krzysztof.kozlowski@oss.qualcomm.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 08aa19de72110df8ac10c9e67349dd884eeed41d ]
devm_pm_runtime_enable() can fail due to memory allocation. The current
code ignores its return value after calling pm_runtime_set_active(),
leaving the device in an inconsistent state if runtime PM initialization
fails.
Check the return value of devm_pm_runtime_enable() and return on
failure. Also move the declaration of 'ret' to the function scope
to support this check.
Fixes: ee8e41b5044f ("phy: ti: phy-da8xx-usb: Add runtime PM support")
Suggested-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Haotian Zhang <vulab@iscas.ac.cn>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20251124105734.1027-1-vulab@iscas.ac.cn
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit cabd25b57216ddc132efbcc31f972baa03aad15a ]
The "index" variable is used as an index into the usbphyc->phys[] array
which has usbphyc->nphys elements. So if it is equal to usbphyc->nphys
then it is one element out of bounds. The "index" comes from the
device tree so it's data that we trust and it's unlikely to be wrong,
however it's obviously still worth fixing the bug. Change the > to >=.
Fixes: 94c358da3a05 ("phy: stm32: add support for STM32 USB PHY Controller (USBPHYC)")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Amelie Delaunay <amelie.delaunay@foss.st.com>
Link: https://patch.msgid.link/aTfHcMJK1wFVnvEe@stanley.mountain
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 1ca52c0983c34fca506921791202ed5bdafd5306 ]
Enabling runtime PM before attaching the QPHY instance as driver data
can lead to a NULL pointer dereference in runtime PM callbacks that
expect valid driver data. There is a small window where the suspend
callback may run after PM runtime enabling and before runtime forbid.
This causes a sporadic crash during boot:
```
Unable to handle kernel NULL pointer dereference at virtual address 00000000000000a1
[...]
CPU: 0 UID: 0 PID: 11 Comm: kworker/0:1 Not tainted 6.16.7+ #116 PREEMPT
Workqueue: pm pm_runtime_work
pstate: 20000005 (nzCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : qusb2_phy_runtime_suspend+0x14/0x1e0 [phy_qcom_qusb2]
lr : pm_generic_runtime_suspend+0x2c/0x44
[...]
```
Attach the QPHY instance as driver data before enabling runtime PM to
prevent NULL pointer dereference in runtime PM callbacks.
Reorder pm_runtime_enable() and pm_runtime_forbid() to prevent a
short window where an unnecessary runtime suspend can occur.
Use the devres-managed version to ensure PM runtime is symmetrically
disabled during driver removal for proper cleanup.
Fixes: 891a96f65ac3 ("phy: qcom-qusb2: Add support for runtime PM")
Signed-off-by: Loic Poulain <loic.poulain@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Abel Vesa <abel.vesa@oss.qualcomm.com>
Link: https://patch.msgid.link/20251219085640.114473-1-loic.poulain@oss.qualcomm.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 8becf9179a4b45104a1701010ed666b55bf4b3a6 ]
Clear the PCS_TX_SWING_FULL field mask before setting the new value
in PHY_CTRL5 register. Without clearing the mask first, the OR operation
could leave previously set bits, resulting in incorrect register
configuration.
Fixes: 63c85ad0cd81 ("phy: fsl-imx8mp-usb: add support for phy tuning")
Suggested-by: Leonid Segal <leonids@variscite.com>
Acked-by: Pierluigi Passaro <pierluigi.p@variscite.com>
Signed-off-by: Stefano Radaelli <stefano.r@variscite.com>
Reviewed-by: Xu Yang <xu.yang_2@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Link: https://patch.msgid.link/20251219160912.561431-1-stefano.r@variscite.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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commit 356d1924b9a6bc2164ce2bf1fad147b0c37ae085 upstream.
Platform drivers can be probed after their init sections have been
discarded (e.g. on probe deferral or manual rebind through sysfs) so the
probe function and match table must not live in init.
Fixes: 783f6d3dcf35 ("phy: bcm63xx-usbh: Add BCM63xx USBH driver")
Cc: stable@vger.kernel.org # 5.9
Cc: Álvaro Fernández Rojas <noltari@gmail.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20251017054537.6884-1-johan@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 5e428e45bf17a8f3784099ca5ded16e3b5d59766 upstream.
Commit f4fb9c4d7f94 ("phy: exynos5-usbdrd: allow DWC3 runtime suspend
with UDC bound (E850+)") incorrectly added clk_bulk_disable() as the
inverse of clk_bulk_prepare_enable() while it should have of course
used clk_bulk_disable_unprepare(). This means incorrect reference
counts to the CMU driver remain.
Update the code accordingly.
Fixes: f4fb9c4d7f94 ("phy: exynos5-usbdrd: allow DWC3 runtime suspend with UDC bound (E850+)")
CC: stable@vger.kernel.org
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Reviewed-by: Peter Griffin <peter.griffin@linaro.org>
Link: https://patch.msgid.link/20251006-gs101-usb-phy-clk-imbalance-v1-1-205b206126cf@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 51023cf6cc5db3423dea6620746d9087e336e024 ]
Fixup PHY deskew FIFO to prevent the phase of D2 lane going ahead of
other lanes. It's worth noting this might only happen when dealing with
HDMI 2.0 rates.
Fixes: 553be2830c5f ("phy: rockchip: Add Samsung HDMI/eDP Combo PHY driver")
Co-developed-by: Algea Cao <algea.cao@rock-chips.com>
Signed-off-by: Algea Cao <algea.cao@rock-chips.com>
Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20251028-phy-hdptx-fixes-v1-3-ecc642a59d94@collabora.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 8daaced9f5eeb4a2c8ca08b0a8286b6a498a8387 ]
Due to its relatively low frequency, a noise stemming from the 24MHz PLL
reference clock may traverse the low-pass loop filter of ROPLL, which
could potentially generate some HDMI flash artifacts.
Reduce ROPLL loop bandwidth in an attempt to mitigate the problem.
Fixes: 553be2830c5f ("phy: rockchip: Add Samsung HDMI/eDP Combo PHY driver")
Co-developed-by: Algea Cao <algea.cao@rock-chips.com>
Signed-off-by: Algea Cao <algea.cao@rock-chips.com>
Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20251028-phy-hdptx-fixes-v1-2-ecc642a59d94@collabora.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 72126e9623e1696ea83c77ef6d0306a6263bdd6b ]
When making use of the clock provider functionality, the output clock
does normally match the TMDS character rate, which is what the PHY PLL
gets configured to.
However, this is only applicable for default color depth of 8 bpc. For
higher depths, the output clock is further divided by the hardware
according to the formula:
output_clock_rate = tmds_char_rate * 8 / bpc
Since the existence of the clock divider wasn't taken into account when
support for high bpc has been introduced, make the necessary adjustments
to report the correct clock rate.
Fixes: 9d0ec51d7c22 ("phy: rockchip: samsung-hdptx: Add high color depth management")
Reported-by: Andy Yan <andy.yan@rock-chips.com>
Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20251028-phy-hdptx-fixes-v1-1-ecc642a59d94@collabora.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 95e5905698983df94069e185f9eb3c67c7cf75d5 ]
Initialize priv->lock to fix the following warning.
WARNING: CPU: 0 PID: 12 at kernel/locking/mutex.c:577 __mutex_lock+0x70c/0x8b8
Modules linked in:
Hardware name: Freescale i.MX8QM MEK (DT)
Call trace:
__mutex_lock+0x70c/0x8b8 (P)
mutex_lock_nested+0x24/0x30
imx_hsio_power_on+0x4c/0x764
phy_power_on+0x7c/0x12c
imx_pcie_host_init+0x1d0/0x4d4
dw_pcie_host_init+0x188/0x4b0
imx_pcie_probe+0x324/0x6f4
platform_probe+0x5c/0x98
really_probe+0xbc/0x29c
__driver_probe_device+0x78/0x12c
driver_probe_device+0xd8/0x160
__device_attach_driver+0xb8/0x138
bus_for_each_drv+0x84/0xe4
__device_attach_async_helper+0xb8/0xdc
async_run_entry_fn+0x34/0xe0
process_one_work+0x220/0x694
worker_thread+0x1c0/0x36c
kthread+0x14c/0x224
Fixes: 82c56b6dd24f ("phy: freescale: imx8qm-hsio: Add i.MX8QM HSIO PHY driver support")
Signed-off-by: Xiaolei Wang <xiaolei.wang@windriver.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20250925013806.569658-1-xiaolei.wang@windriver.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit be866e68966d20bcc4a73708093d577176f99c0c ]
When PCIe link enters L1 PM substates, the PHY will turn off its
PLL for power-saving. However, it turns off the PLL too fast which
leads the PHY to be broken. According to the PHY document, we need
to delay PLL turnoff time.
Fixes: f13bff25161b ("phy: rockchip-naneng-combo: Support rk3562")
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/1763459526-35004-2-git-send-email-shawn.lin@rock-chips.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit a2a18e5da64f8da306fa97c397b4c739ea776f37 ]
When PCIe link enters L1 PM substates, the PHY will turn off its
PLL for power-saving. However, it turns off the PLL too fast which
leads the PHY to be broken. According to the PHY document, we need
to delay PLL turnoff time.
Fixes: bbcca4fac873 ("phy: rockchip: naneng-combphy: Add RK3528 support")
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/1763459526-35004-1-git-send-email-shawn.lin@rock-chips.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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rcar_gen3_phy_usb2_probe()
[ Upstream commit 662bb179d3381c7c069e44bb177396bcaee31cc8 ]
If an error occurs after the reset_control_deassert(),
reset_control_assert() must be called, as already done in the remove
function.
Use devm_add_action_or_reset() to add the missing call and simplify the
.remove() function accordingly.
While at it, drop struct rcar_gen3_chan::rstc as it is not used aymore.
[claudiu.beznea: removed "struct reset_control *rstc = data;" from
rcar_gen3_reset_assert(), dropped struct rcar_gen3_chan::rstc]
Fixes: 4eae16375357 ("phy: renesas: rcar-gen3-usb2: Add support to initialize the bus")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Link: https://patch.msgid.link/20251023135810.1688415-3-claudiu.beznea.uj@bp.renesas.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy
Pull phy updates from Vinod Koul:
"The usual bunch of device support and update to drivers.
New Support
- Qualcomm SM8750 QMP PCIe PHY dual lane support, PMIV0104 eusb2
repeater support, QCS8300 eDP PHY support
- Renesas RZ/T2H and RZ/N2H support and updates to driver for that
- TI TCAN1051 phy support
- Rockchip rk3588 dphy support, RK3528 combphy support
Updates:
- cadence updates for calibration and polling for ready and enabling
of lower resolutions, runtime pm support,
- Rockchip: enable U3 otg port
- Renesas USXGMII mode support
- Qualcomm UFS PHY and PLL regulator load support"
* tag 'phy-for-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy: (64 commits)
phy: rockchip: phy-rockchip-inno-csidphy: add support for rk3588 variant
phy: rockchip: phy-rockchip-inno-csidphy: allow for different reset lines
phy: rockchip: phy-rockchip-inno-csidphy: allow writes to grf register 0
dt-bindings: phy: rockchip-inno-csi-dphy: add rk3588 variant
dt-bindings: phy: rockchip-inno-csi-dphy: make power-domains non-required
phy: cadence: cdns-dphy: Enable lower resolutions in dphy
phy: renesas: r8a779f0-ether-serdes: add new step added to latest datasheet
phy: renesas: r8a779f0-ether-serdes: add USXGMII mode
phy: sophgo: Add USB 2.0 PHY driver for Sophgo CV18XX/SG200X
dt-bindings: phy: Add Sophgo CV1800 USB phy
phy: cadence: cdns-dphy: Update calibration wait time for startup state machine
phy: cadence: cdns-dphy: Fix PLL lock and O_CMN_READY polling
phy: renesas: rcar-gen3-usb2: Fix ID check logic with VBUS valid
dt-bindings: phy: ti,tcan104x-can: Document TI TCAN1051
phy: lynx-28g: check return value when calling lynx_28g_pll_get
phy: qcom: m31-eusb2: Fix the error log while enabling clock
phy: rockchip: usbdp: Remove redundant ternary operators
phy: renesas: rcar-gen3-usb2: Remove redundant ternary operators
phy: hisilicon: Remove redundant ternary operators
phy: qcom-qmp-ufs: Add PHY and PLL regulator load
...
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Pull bitmap updates from Yury Norov:
- FIELD_PREP_WM16() consolidation (Nicolas)
- bitmaps for Rust (Burak)
- __fls() fix for arc (Kees)
* tag 'bitmap-for-6.18' of https://github.com/norov/linux: (25 commits)
rust: add dynamic ID pool abstraction for bitmap
rust: add find_bit_benchmark_rust module.
rust: add bitmap API.
rust: add bindings for bitops.h
rust: add bindings for bitmap.h
phy: rockchip-pcie: switch to FIELD_PREP_WM16 macro
clk: sp7021: switch to FIELD_PREP_WM16 macro
PCI: dw-rockchip: Switch to FIELD_PREP_WM16 macro
PCI: rockchip: Switch to FIELD_PREP_WM16* macros
net: stmmac: dwmac-rk: switch to FIELD_PREP_WM16 macro
ASoC: rockchip: i2s-tdm: switch to FIELD_PREP_WM16_CONST macro
drm/rockchip: dw_hdmi: switch to FIELD_PREP_WM16* macros
phy: rockchip-usb: switch to FIELD_PREP_WM16 macro
drm/rockchip: inno-hdmi: switch to FIELD_PREP_WM16 macro
drm/rockchip: dw_hdmi_qp: switch to FIELD_PREP_WM16 macro
phy: rockchip-samsung-dcphy: switch to FIELD_PREP_WM16 macro
drm/rockchip: vop2: switch to FIELD_PREP_WM16 macro
drm/rockchip: dsi: switch to FIELD_PREP_WM16* macros
phy: rockchip-emmc: switch to FIELD_PREP_WM16 macro
drm/rockchip: lvds: switch to FIELD_PREP_WM16 macro
...
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The era of hand-rolled HIWORD_UPDATE macros is over, at least for those
drivers that use constant masks.
The Rockchip PCIe PHY driver, used on the RK3399, has its own definition
of HIWORD_UPDATE.
Remove it, and replace instances of it with hw_bitfield.h's
FIELD_PREP_WM16. To achieve this, some mask defines are reshuffled, as
FIELD_PREP_WM16 uses the mask as both the mask of bits to write and to
derive the shift amount from in order to shift the value.
In order to ensure that the mask is always a constant, the inst->index
shift is performed after the FIELD_PREP_WM16, as this is a runtime
value.
>From this, we gain compile-time error checking, and in my humble opinion
nicer code, as well as a single definition of this macro across the
entire codebase to aid in code comprehension.
Tested on a RK3399 ROCKPro64, where PCIe still works as expected when
accessing an NVMe drive.
Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Yury Norov (NVIDIA) <yury.norov@gmail.com>
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The Rockchip RK3588 MIPI CSI-2 DPHY can be supported using the existing
phy-rockchip-inno-csidphy driver, the notable differences being
- the control bits in the GRF
- the additional reset line
Add support for this variant.
Signed-off-by: Michael Riesch <michael.riesch@collabora.com>
Link: https://lore.kernel.org/r/20250616-rk3588-csi-dphy-v4-6-a4f340a7f0cf@collabora.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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The RK3588 MIPI CSI-2 DPHY variant requires two reset lines. Add support
for different sets of reset lines to the phy-rockchip-inno-csidphy driver
as preparation for the introduction of the RK3588 variant.
Signed-off-by: Michael Riesch <michael.riesch@collabora.com>
Link: https://lore.kernel.org/r/20250616-rk3588-csi-dphy-v4-5-a4f340a7f0cf@collabora.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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The driver for the Rockchip MIPI CSI-2 DPHY uses GRF register offset
value 0 to sort out undefined registers. However, the RK3588 CSIDPHY GRF
this offset is perfectly fine (in fact, register 0 is the only one in
this register file).
Introduce a boolean variable to indicate valid registers and allow writes
to register 0.
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Michael Riesch <michael.riesch@collabora.com>
Link: https://lore.kernel.org/r/20250616-rk3588-csi-dphy-v4-4-a4f340a7f0cf@collabora.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Enable support for data lane rates between 80-160 Mbps cdns dphy
as mentioned in TRM [0] by setting the pll_opdiv field to 16.
This change enables lower resolutions like 640x480 at 60Hz.
[0]: https://www.ti.com/lit/zip/spruil1
(Table 12-552. DPHY_TX_PLL_CTRL Register Field Descriptions)
Reviewed-by: Udit Kumar <u-kumar1@ti.com>
Reviewed-by: Devarsh Thakkar <devarsht@ti.com>
Signed-off-by: Harikrishna Shenoy <h-shenoy@ti.com>
Link: https://lore.kernel.org/r/20250807052002.717807-1-h-shenoy@ti.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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R-Car S4-8 datasheet Rev.1.20 describes some additional register
settings at the end of the initialization.
Signed-off-by: Michael Dege <michael.dege@renesas.com>
Link: https://lore.kernel.org/r/20250703-renesas-serdes-update-v4-2-1db5629cac2b@renesas.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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The initial driver implementation was limited to SGMII and 1GBit/s. The
new mode allows speeds up to 2.5GBit/s on R-Car S4-8 SOCs.
Signed-off-by: Michael Dege <michael.dege@renesas.com>
Link: https://lore.kernel.org/r/20250703-renesas-serdes-update-v4-1-1db5629cac2b@renesas.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Add USB 2.0 PHY driver for Sophgo CV18XX/SG200X. Currently
this driver does not support OTG mode as lack of document.
Signed-off-by: Inochi Amaoto <inochiama@gmail.com>
Tested-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Link: https://lore.kernel.org/r/20250708063038.497473-3-inochiama@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Do read-modify-write so that we re-use the characterized reset value as
specified in TRM [1] to program calibration wait time which defines number
of cycles to wait for after startup state machine is in bandgap enable
state.
This fixes PLL lock timeout error faced while using RPi DSI Panel on TI's
AM62L and J721E SoC since earlier calibration wait time was getting
overwritten to zero value thus failing the PLL to lockup and causing
timeout.
[1] AM62P TRM (Section 14.8.6.3.2.1.1 DPHY_TX_DPHYTX_CMN0_CMN_DIG_TBIT2):
Link: https://www.ti.com/lit/pdf/spruj83
Cc: stable@vger.kernel.org
Fixes: 7a343c8bf4b5 ("phy: Add Cadence D-PHY support")
Signed-off-by: Devarsh Thakkar <devarsht@ti.com>
Tested-by: Harikrishna Shenoy <h-shenoy@ti.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Link: https://lore.kernel.org/r/20250704125915.1224738-3-devarsht@ti.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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PLL lockup and O_CMN_READY assertion can only happen after common state
machine gets enabled by programming DPHY_CMN_SSM register, but driver was
polling them before the common state machine was enabled which is
incorrect. This is as per the DPHY initialization sequence as mentioned in
J721E TRM [1] at section "12.7.2.4.1.2.1 Start-up Sequence Timing Diagram".
It shows O_CMN_READY polling at the end after common configuration pin
setup where the common configuration pin setup step enables state machine
as referenced in "Table 12-1533. Common Configuration-Related Setup
mentions state machine"
To fix this :
- Add new function callbacks for polling on PLL lock and O_CMN_READY
assertion.
- As state machine and clocks get enabled in power_on callback only, move
the clock related programming part from configure callback to power_on
callback and poll for the PLL lockup and O_CMN_READY assertion after state
machine gets enabled.
- The configure callback only saves the PLL configuration received from the
client driver which will be applied later on in power_on callback.
- Add checks to ensure configure is called before power_on and state
machine is in disabled state before power_on callback is called.
- Disable state machine in power_off so that client driver can re-configure
the PLL by following up a power_off, configure, power_on sequence.
[1]: https://www.ti.com/lit/zip/spruil1
Cc: stable@vger.kernel.org
Fixes: 7a343c8bf4b5 ("phy: Add Cadence D-PHY support")
Signed-off-by: Devarsh Thakkar <devarsht@ti.com>
Tested-by: Harikrishna Shenoy <h-shenoy@ti.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Link: https://lore.kernel.org/r/20250704125915.1224738-2-devarsht@ti.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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The era of hand-rolled HIWORD_UPDATE macros is over, at least for those
drivers that use constant masks.
Remove this driver's HIWORD_UPDATE macro, and replace all instances of
it with (hopefully) equivalent FIELD_PREP_WM16 instances. To do this, a
few of the defines are being adjusted, as FIELD_PREP_WM16 shifts up the
value for us. This gets rid of the icky update(mask, mask) shenanigans.
The benefit of using FIELD_PREP_WM16 is that it does more checking of
the input, hopefully catching errors. In practice, a shared definition
makes code more readable than several different flavours of the same
macro, and the shifted value helps as well.
I do not have the hardware that uses this particular driver, so it's
compile-tested only as far as my own testing goes.
Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Yury Norov (NVIDIA) <yury.norov@gmail.com>
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The era of hand-rolled HIWORD_UPDATE macros is over, at least for those
drivers that use constant masks.
phy-rockchip-samsung-dcphy is actually an exemplary example, where the
similarities to FIELD_PREP were spotted and the driver local macro has
the same semantics as the new FIELD_PREP_WM16 hw_bitfield.h macro.
Still, get rid of FIELD_PREP_HIWORD now that a shared implementation
exists, replacing the two instances of it with FIELD_PREP_WM16. This
gives us slightly better error checking; the value is now checked to fit
in 16 bits.
Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Yury Norov (NVIDIA) <yury.norov@gmail.com>
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The era of hand-rolled HIWORD_UPDATE macros is over, at least for those
drivers that use constant masks.
Replace the implementation of the rockchip eMMC PHY driver's
HIWORD_UPDATE macro with hw_bitfield.h's FIELD_PREP_WM16. This makes the
change more easily reviewable.
Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Yury Norov (NVIDIA) <yury.norov@gmail.com>
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Commit 0cc22f5a861c ("phy: qcom: qmp-pcie: Add PHY register retention
support") added support for using the "no_csr" reset to skip configuration
of the PHY if the init sequence was already applied by the boot firmware.
The expectation is that the PHY is only turned on/off by using the "no_csr"
reset, instead of powering it down and re-programming it after a full
reset.
The boot firmware on X1E does not fully conform to this expectation: If the
PCIe3 link fails to come up (e.g. because no PCIe card is inserted), the
firmware powers down the PHY using the QPHY_PCS_POWER_DOWN_CONTROL
register. The QPHY_START_CTRL register is kept as-is, so the driver assumes
the PHY is already initialized and skips the configuration/power up
sequence. The PHY won't come up again without clearing the
QPHY_PCS_POWER_DOWN_CONTROL, so eventually initialization fails:
qcom-qmp-pcie-phy 1be0000.phy: phy initialization timed-out
phy phy-1be0000.phy.0: phy poweron failed --> -110
qcom-pcie 1bd0000.pcie: cannot initialize host
qcom-pcie 1bd0000.pcie: probe with driver qcom-pcie failed with error -110
This can be reliably reproduced on the X1E CRD, QCP and Devkit when no card
is inserted for PCIe3.
Fix this by checking the QPHY_PCS_POWER_DOWN_CONTROL register in addition
to QPHY_START_CTRL. If the PHY is powered down with the register, it
doesn't conform to the expectations for using the "no_csr" reset, so we
fully re-initialize with the normal reset sequence.
Also check the register more carefully to ensure all of the bits we expect
are actually set. A simple !!(readl()) is not enough, because the PHY might
be only partially set up with some of the expected bits set.
Cc: stable@vger.kernel.org
Fixes: 0cc22f5a861c ("phy: qcom: qmp-pcie: Add PHY register retention support")
Signed-off-by: Stephan Gerhold <stephan.gerhold@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250821-phy-qcom-qmp-pcie-nocsr-fix-v3-1-4898db0cc07c@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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The existing ID detection logic returned false when both IDDIG and
VBUSVALID were set, which caused incorrect role determination in some
cases. The condition:
!(device && !vbus_valid)
did not properly reflect the intended relationship between IDDIG and
VBUSVALID signals.
Update the logic to:
return vbus_valid ? device : !device;
This ensures that when VBUS is valid, the role follows the IDDIG value,
and when VBUS is not valid, the role is inverted, matching the expected
OTG behavior.
Fixes: b725741f1c21 ("phy: renesas: rcar-gen3-usb2: Add support for RZ/T2H SoC")
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://lore.kernel.org/r/20250821155957.1088337-1-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Some SoCs are just validated with the TX delay enabled. With commit
ca13b249f291 ("net: ethernet: ti: am65-cpsw: fixup PHY mode for fixed
RGMII TX delay"), the network driver will patch the delay setting on the
fly assuming that the TX delay setting is fixed. In reality, the TX
delay is configurable and just skipped in the documentation. There are
bootloaders, which will disable the TX delay and this will lead to a
transmit path which doesn't add any delays at all.
Fix that by always writing the RGMII_ID setting and report an error for
unsupported RGMII delay modes.
This is safe to do and shouldn't break any boards in mainline because
the fixed delay is only introduced for gmii-sel compatibles which are
used together with the am65-cpsw-nuss driver and also contains the
commit above.
Fixes: ca13b249f291 ("net: ethernet: ti: am65-cpsw: fixup PHY mode for fixed RGMII TX delay")
Signed-off-by: Michael Walle <mwalle@kernel.org>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Link: https://lore.kernel.org/r/20250819065622.1019537-1-mwalle@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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The lynx_28g_pll_get function may return NULL when called with an
unsupported submode argument.
This function is only called from the lynx_28g_lane_set_{10gbaser,sgmii}
functions, and lynx_28g_set_mode checks available modes before setting a
protocol.
NXP vendor kernel based on v6.6.52 however is missing any checks and
connecting a 2.5/5gbase-t ethernet phy can cause null pointer
dereference [1].
Check return value at every invocation and abort in the unlikely error
case. Further print a warning message the first time lynx_28g_pll_get
returns null, to catch this case should it occur after future changes.
[1]
[ 127.019924] fsl_dpaa2_eth dpni.4 eth5: dpmac_set_protocol(2500base-x) = -ENOTSUPP
[ 127.027451] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000014
[ 127.036245] Mem abort info:
[ 127.039044] ESR = 0x0000000096000004
[ 127.042794] EC = 0x25: DABT (current EL), IL = 32 bits
[ 127.048107] SET = 0, FnV = 0
[ 127.051161] EA = 0, S1PTW = 0
[ 127.054301] FSC = 0x04: level 0 translation fault
[ 127.059179] Data abort info:
[ 127.062059] ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000
[ 127.067547] CM = 0, WnR = 0, TnD = 0, TagAccess = 0
[ 127.072596] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0
[ 127.077907] user pgtable: 4k pages, 48-bit VAs, pgdp=00000020816c9000
[ 127.084344] [0000000000000014] pgd=0000000000000000, p4d=0000000000000000
[ 127.091133] Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP
[ 127.097390] Modules linked in: cfg80211 rfkill fsl_jr_uio caam_jr dpaa2_caam caamkeyblob_desc crypto_engine caamhash_desc onboard_usb_hub caamalg_desc crct10dif_ce libdes caam error at24 rtc_ds1307 rtc_fsl_ftm_alarm nvmem_layerscape_sfp layerscape_edac_mod dm_mod nfnetlink ip_tables
[ 127.122436] CPU: 5 PID: 96 Comm: kworker/u35:0 Not tainted 6.6.52-g3578ef896722 #10
[ 127.130083] Hardware name: SolidRun LX2162A Clearfog (DT)
[ 127.135470] Workqueue: events_power_efficient phylink_resolve
[ 127.141219] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[ 127.148170] pc : lynx_28g_set_lane_mode+0x300/0x818
[ 127.153041] lr : lynx_28g_set_lane_mode+0x2fc/0x818
[ 127.157909] sp : ffff8000806f3b80
[ 127.161212] x29: ffff8000806f3b80 x28: 0000000000000000 x27: 0000000000000000
[ 127.168340] x26: ffff29d6c11f3098 x25: 0000000000000000 x24: 0000000000000000
[ 127.175467] x23: ffff29d6c11f31f0 x22: ffff29d6c11f3080 x21: 0000000000000001
[ 127.182595] x20: ffff29d6c11f4c00 x19: 0000000000000000 x18: 0000000000000006
[ 127.189722] x17: 4f4e452d203d2029 x16: 782d657361623030 x15: 3532286c6f636f74
[ 127.196849] x14: 6f72705f7465735f x13: ffffd7a8ff991cc0 x12: 0000000000000acb
[ 127.203976] x11: 0000000000000399 x10: ffffd7a8ff9e9cc0 x9 : 0000000000000000
[ 127.211104] x8 : 0000000000000000 x7 : 0000000000000000 x6 : ffff29d6c11f3080
[ 127.218231] x5 : 0000000000000000 x4 : 0000000040800030 x3 : 000000000000034c
[ 127.225358] x2 : ffff29d6c11f3080 x1 : 000000000000034c x0 : 0000000000000000
[ 127.232486] Call trace:
[ 127.234921] lynx_28g_set_lane_mode+0x300/0x818
[ 127.239443] lynx_28g_set_mode+0x12c/0x148
[ 127.243529] phy_set_mode_ext+0x5c/0xa8
[ 127.247356] lynx_pcs_config+0x64/0x294
[ 127.251184] phylink_major_config+0x184/0x49c
[ 127.255532] phylink_resolve+0x2a0/0x5d8
[ 127.259446] process_one_work+0x138/0x248
[ 127.263448] worker_thread+0x320/0x438
[ 127.267187] kthread+0x114/0x118
[ 127.270406] ret_from_fork+0x10/0x20
[ 127.273973] Code: 2a1303e1 aa0603e0 97fffd3b aa0003e5 (b9401400)
[ 127.280055] ---[ end trace 0000000000000000 ]---
Signed-off-by: Josua Mayer <josua@solid-run.com>
Link: https://lore.kernel.org/r/20250826-lynx-28g-nullptr-v1-1-e4de0098f822@solid-run.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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While enabling clock, we incorrectly log 'ref clk' as 'cfg ahb clk'
Fix this since the devicetree bindings mentions it as ref clock.
Signed-off-by: Prashanth K <prashanth.k@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250826105254.3758803-1-prashanth.k@oss.qualcomm.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Remove redundant ternary operators to clean up the code.
Signed-off-by: Liao Yuanhong <liaoyuanhong@vivo.com>
Link: https://lore.kernel.org/r/20250828122401.17441-4-liaoyuanhong@vivo.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Remove redundant ternary operators to clean up the code.
Signed-off-by: Liao Yuanhong <liaoyuanhong@vivo.com>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20250828122401.17441-3-liaoyuanhong@vivo.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Remove redundant ternary operators to clean up the code.
Signed-off-by: Liao Yuanhong <liaoyuanhong@vivo.com>
Link: https://lore.kernel.org/r/20250828122401.17441-2-liaoyuanhong@vivo.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Add phy and pll regulator load voting support for all supported
platforms by introducing dedicated regulator bulk data arrays
with their load values.
This ensures stable operation and proper power management for these
platforms where regulators are shared between the QMP UFS PHY and
other IP blocks by setting appropriate regulator load currents during
PHY operations.
Signed-off-by: Nitin Rawat <quic_nitirawa@quicinc.com>
Acked-by: Manivannan Sadhasivam <mani@kernel.org>
Link: https://lore.kernel.org/r/20250830070353.2694-3-nitin.rawat@oss.qualcomm.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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On certain SoCs, power regulators are shared between the QMP UFS PHY
and other IP blocks. To ensure proper operation, the regulator
framework must be informed of the UFS PHY's load requirements.
This is essential because the regulator's operating mode—whether Low
Power or High Power—depends on the maximum expected load at any given
time, which the regulator driver needs to manage accordingly.
To support this, replace devm_regulator_bulk_get() with
devm_regulator_bulk_get_const() and inline the qmp_ufs_vreg_init()
function. additionally replace the array of regulator names with a
bulk regulator data structure, and utilize the init_load_uA field
provided by the regulator framework. This ensures that
regulator_set_load() is automatically invoked before the
first enable operation.
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Nitin Rawat <quic_nitirawa@quicinc.com>
Link: https://lore.kernel.org/r/20250830070353.2694-2-nitin.rawat@oss.qualcomm.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Use core driver model helper dev_err_probe() defined at
drivers/base/core.c in driver probe path to propagate errors.
standardize and improve the code of deferred probe error handling
using this helper for ingenic usb phy driver.
Inspired by,
commit a787e5400a1ce ("driver core: add device probe log helper")
Signed-off-by: Akhilesh Patil <akhilesh@ee.iitb.ac.in>
Cc: Andrzej Hajda <a.hajda@samsung.com>
Link: https://lore.kernel.org/r/aIIMW971BYsIk4As@bhairav-test.ee.iitb.ac.in
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Relocate the debug print in rcar_gen3_enable_vbus_ctrl() to appear after
the `val` variable is assigned and updated based on the VBUS state. This
ensures that the debug log reflects the actual register value being
written, improving debugging accuracy.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20250808215209.3692744-6-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Add initial support for the Renesas RZ/T2H SoC to the R-Car Gen3 USB2 PHY
driver. The RZ/T2H SoC requires configuration of additional
hardware-specific bits for proper VBUS level control and OTG operation.
Introduce the `vblvl_ctrl` flag in the SoC-specific driver data to enable
handling of VBUS level selection logic using `VBCTRL.VBLVL` bits. This is
required for managing the VBUS status detection and drive logic based on
SoC-specific needs.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20250808215209.3692744-5-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Update the PHY driver to support SoC-specific OBINT enable bits by
introducing the `obint_enable_bits` field in the `rcar_gen3_phy_drv_data`
structure. This allows each SoC to specify bits required.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20250808215209.3692744-4-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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