linux-stable.git/drivers/phy, branch v6.1.3

phy: sun4i-usb: Add support for the H616 USB PHY

2023-01-04T10:28:56+00:00

[ Upstream commit 0f607406525d25019dd9c498bcc0b42734fc59d5 ]

The USB PHY used in the Allwinner H616 SoC inherits some traits from its
various predecessors: it has four full PHYs like the H3, needs some
extra bits to be set like the H6, and puts SIDDQ on a different bit like
the A100. Plus it needs this weird PHY2 quirk.

Name all those properties in a new config struct and assign a new
compatible name to it.

Signed-off-by: Andre Przywara 
Reviewed-by: Samuel Holland 
Link: https://lore.kernel.org/r/20221031111358.3387297-5-andre.przywara@arm.com
Signed-off-by: Vinod Koul 
Signed-off-by: Sasha Levin

phy: sun4i-usb: Introduce port2 SIDDQ quirk

2023-01-04T10:28:56+00:00

[ Upstream commit b45c6d80325bec2b78c716629a518b6442d8bdc6 ]

At least the Allwinner H616 SoC requires a weird quirk to make most
USB PHYs work: Only port2 works out of the box, but all other ports
need some help from this port2 to work correctly: The CLK_BUS_PHY2 and
RST_USB_PHY2 clock and reset need to be enabled, and the SIDDQ bit in
the PMU PHY control register needs to be cleared. For this register to
be accessible, CLK_BUS_ECHI2 needs to be ungated. Don't ask ....

Instead of disguising this as some generic feature, treat it more like
a quirk (what it really is):
If the quirk bit is set, and we initialise a PHY other than PHY2, ungate
this one special clock, and clear the SIDDQ bit. We also pick the clock
and reset from PHY2 and enable them as well.

Signed-off-by: Andre Przywara 
Link: https://lore.kernel.org/r/20221031111358.3387297-4-andre.przywara@arm.com
Signed-off-by: Vinod Koul 
Signed-off-by: Sasha Levin

phy: qcom-qmp-pcie: Fix sm8450_qmp_gen4x2_pcie_pcs_tbl[] register names

2022-12-31T12:32:48+00:00

[ Upstream commit 883aebf6e1ea88145d64dcf940dbcb5181313338 ]

sm8450_qmp_gen4x2_pcie_pcs_tbl[] contains the init sequence for PCS
registers of QMP PHY v5.20. So use the v5.20 specific register names.
Only major change is the rename of PCS_EQ_CONFIG{2/3} registers to
PCS_EQ_CONFIG{4/5}.

Fixes: 2c91bf6bf290 ("phy: qcom-qmp: Add SM8450 PCIe1 PHY support")
Signed-off-by: Manivannan Sadhasivam 
Link: https://lore.kernel.org/r/20221102081835.41892-2-manivannan.sadhasivam@linaro.org
Signed-off-by: Vinod Koul 
Signed-off-by: Sasha Levin

phy: qcom-qmp-pcie: Fix high latency with 4x2 PHY when ASPM is enabled

2022-12-31T12:32:48+00:00

[ Upstream commit 9ddcd920f8edfe65c3670fbd0b49db00e1e562fe ]

The PCIe QMP 4x2 RC PHY generates high latency when ASPM is enabled. This
seem to be fixed by clearing the QPHY_V5_20_PCS_PCIE_PRESET_P10_POST
register of the pcs_misc register space.

Fixes: 2c91bf6bf290 ("phy: qcom-qmp: Add SM8450 PCIe1 PHY support")
Signed-off-by: Manivannan Sadhasivam 
Link: https://lore.kernel.org/r/20221102081835.41892-1-manivannan.sadhasivam@linaro.org
Signed-off-by: Vinod Koul 
Signed-off-by: Sasha Levin

phy: qcom-qmp-pcie: Support SM8450 PCIe1 PHY in EP mode

2022-12-31T12:32:48+00:00

[ Upstream commit f5682f13b7ab0bbdffd11934afe4b5c011d5be74 ]

Add support for using PCIe1 (gen4x2) in EP mode on SM8450. The tables to
program are mostly common with the RC mode tables, so only register
difference are split into separate RC and EP tables.

Signed-off-by: Dmitry Baryshkov 
Link: https://lore.kernel.org/r/20220927092207.161501-4-dmitry.baryshkov@linaro.org
Signed-off-by: Vinod Koul 
Stable-dep-of: 9ddcd920f8ed ("phy: qcom-qmp-pcie: Fix high latency with 4x2 PHY when ASPM is enabled")
Signed-off-by: Sasha Levin

phy: qcom-qmp-pcie: support separate tables for EP mode

2022-12-31T12:32:48+00:00

[ Upstream commit 11bf53a38c82baef349b4efc6a84f069dab7085a ]

The PCIe QMP PHY requires different programming sequences when being
used for the RC (Root Complex) or for the EP (End Point) modes. Allow
selecting the submode and thus selecting a set of PHY programming
tables.

Since the RC and EP modes share common some common init sequence, the
common sequence is kept in the main table and the sequence differences
are pushed to the extra tables.

Reviewed-by: Johan Hovold 
Signed-off-by: Dmitry Baryshkov 
Link: https://lore.kernel.org/r/20220927092207.161501-3-dmitry.baryshkov@linaro.org
Signed-off-by: Vinod Koul 
Stable-dep-of: 9ddcd920f8ed ("phy: qcom-qmp-pcie: Fix high latency with 4x2 PHY when ASPM is enabled")
Signed-off-by: Sasha Levin

phy: qcom-qmp-pcie: split pcs_misc init cfg for ipq8074 pcs table

2022-12-31T12:32:48+00:00

[ Upstream commit 2584068a9ef4a7bff3b9302dd058a4c95ce68631 ]

Commit af6643242d3a ("phy: qcom-qmp-pcie: split pcs_misc region for ipq6018
pcie gen3") reworked the pcs regs values and removed the 0x400 offset
for each pcs_misc regs.

This change caused the malfunction of ipq8074 downstream since it still
has the legacy pcs table where pcs_misc are not placed on a different
table and instead put together assuming the offset of 0x400 for the
related pcs_misc regs.

Split pcs_misc init cfg from the ipq8074 pcs init table to be handled
correctly to prepare for actual support for gen3 pcie for ipq8074.

Fixes: af6643242d3a ("phy: qcom-qmp-pcie: split pcs_misc region for ipq6018 pcie gen3")
Reported-by: Robert Marko 
Tested-by: Robert Marko 
Signed-off-by: Christian Marangi 
Link: https://lore.kernel.org/r/20221103212125.17156-1-ansuelsmth@gmail.com
Signed-off-by: Vinod Koul 
Signed-off-by: Sasha Levin

phy: qcom-qmp-pcie: split register tables into common and extra parts

2022-12-31T12:32:48+00:00

[ Upstream commit 2566ad8ec418934c213cb50fd2084ffd896a2fea ]

SM8250 configuration tables are split into two parts: the common one and
the PHY-specific tables. Make this split more formal. Rather than having
a blind renamed copy of all QMP table fields, add separate struct
qmp_phy_cfg_tables and add two instances of this structure to the struct
qmp_phy_cfg. Later on this will be used to support different PHY modes
(RC vs EP).

Reviewed-by: Johan Hovold 
Signed-off-by: Dmitry Baryshkov 
Link: https://lore.kernel.org/r/20220927092207.161501-2-dmitry.baryshkov@linaro.org
Signed-off-by: Vinod Koul 
Stable-dep-of: 2584068a9ef4 ("phy: qcom-qmp-pcie: split pcs_misc init cfg for ipq8074 pcs table")
Signed-off-by: Sasha Levin

phy: usb: Fix clock imbalance for suspend/resume

2022-12-31T12:32:48+00:00

[ Upstream commit 8484199c09347bdd5d81ee8a2bc530850f900797 ]

We should be disabling clocks when wake from USB is not needed. Since
this wasn't done, we had a clock imbalance since clocks were always
being enabled on resume.

Fixes: ae532b2b7aa5 ("phy: usb: Add "wake on" functionality for newer Synopsis XHCI controllers")
Fixes: b0c0b66c0b43 ("phy: usb: Add support for wake and USB low power mode for 7211 S2/S5")
Signed-off-by: Justin Chen 
Acked-by: Florian Fainelli 
Link: https://lore.kernel.org/r/1665005418-15807-7-git-send-email-justinpopo6@gmail.com
Signed-off-by: Vinod Koul 
Signed-off-by: Sasha Levin

phy: usb: Use slow clock for wake enabled suspend

2022-12-31T12:32:48+00:00

[ Upstream commit 700c44b508020a3ea29d297c677f8d4ab14b7e6a ]

The logic was incorrect when switching to slow clock. We want the slow
clock if wake_enabled is set.

Fixes: ae532b2b7aa5 ("phy: usb: Add "wake on" functionality for newer Synopsis XHCI controllers")
Signed-off-by: Justin Chen 
Acked-by: Florian Fainelli 
Link: https://lore.kernel.org/r/1665005418-15807-6-git-send-email-justinpopo6@gmail.com
Signed-off-by: Vinod Koul 
Signed-off-by: Sasha Levin