8 Commits

Author SHA1 Message Date
Bjorn Andersson
29e31415e1 clk: qcom: Remove need for clk_ignore_unused on sc8280xp
With the transition of disabling unused clocks at sync_state, rather
than late_initcall() it's now possible to drop clk_ignore_unused and
unused clock disabled once client drivers have probed. Do this on
SC8280XP.

Signed-off-by: Bjorn Andersson <quic_bjorande@quicinc.com>
Reviewed-by: Abel Vesa <abel.vesa@linaro.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Tested-by: Andrew Halaney <ahalaney@redhat.com> # sc8280xp-lenovo-thinkpad-x13s
Acked-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230113041038.4188995-1-quic_bjorande@quicinc.com
2023-01-16 19:55:40 -06:00
Shazad Hussain
f6abcc21d9 clk: qcom: gcc-sc8280xp: add cxo as parent for three ufs ref clks
The three UFS reference clocks, gcc_ufs_ref_clkref_clk for external
UFS devices, gcc_ufs_card_clkref_clk and gcc_ufs_1_card_clkref_clk for
two PHYs are all sourced from CXO.

Added parent_data for all three reference clocks described above to
reflect that all three clocks are sourced from CXO to have valid
frequency for the ref clock needed by UFS controller driver.

Fixes: d65d005f9a6c ("clk: qcom: add sc8280xp GCC driver")
Link: https://lore.kernel.org/lkml/Y2Tber39cHuOSR%2FW@hovoldconsulting.com/
Signed-off-by: Shazad Hussain <quic_shazhuss@quicinc.com>
Tested-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Johan Hovold <johan+linaro@kernel.org>
Tested-by: Andrew Halaney <ahalaney@redhat.com>
Reviewed-by: Andrew Halaney <ahalaney@redhat.com>
Reviewed-by: Brian Masney <bmasney@redhat.com>
Link: https://lore.kernel.org/r/20221115152956.21677-1-quic_shazhuss@quicinc.com
Reviewed-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2022-11-22 18:27:07 -08:00
Johan Hovold
27da533af9 clk: qcom: gcc-sc8280xp: use retention for USB power domains
Since commit d399723950c4 ("clk: qcom: gdsc: Fix the handling of
PWRSTS_RET support) retention mode can be used on sc8280xp to maintain
state during suspend instead of leaving the domain always on.

This is needed to eventually allow the parent CX domain to be powered
down during suspend.

Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20220929161124.18138-1-johan+linaro@kernel.org
2022-09-29 11:42:08 -05:00
Johan Hovold
f6d373ff28 clk: gcc-sc8280xp: keep USB power-domains always-on
The Qualcomm DWC3 driver suspend implementation appears to be incomplete
for SC8280XP so keep the USB power domains always-on for now so that the
controller survives a suspend cycle.

Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220805121250.10347-3-johan+linaro@kernel.org
2022-08-18 14:12:03 -05:00
Johan Hovold
12d2a47693 clk: gcc-sc8280xp: keep PCIe power-domains always-on
The Qualcomm PCIe driver does not yet implement suspend so to keep the
PCIe power domains always-on for now to avoid crashing during resume.

Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220805121250.10347-2-johan+linaro@kernel.org
2022-08-18 14:12:02 -05:00
Johan Hovold
9410fb9401 clk: qcom: gcc-sc8280xp: use phy-mux clock for PCIe
Use the new phy-mux clock implementation for the PCIe pipe clock muxes
so that the pipe clock source is set to the QMP PHY PLL when the
downstream pipe clock is enabled and restored to the always-on XO when
it is again disabled.

This is needed to prevent the corresponding GDSC from hanging when
enabling or disabling the PCIe power domain, something which requires a
ticking source.

Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220628085707.16214-1-johan+linaro@kernel.org
2022-06-29 21:53:23 -05:00
Johan Hovold
8d114b94fc clk: qcom: gcc-sc8280xp: use collapse-voting for PCIe GDSCs
The PCIe GDSCs can be shared with other masters and should use the APCS
collapse-vote register when updating the power state.

This is specifically also needed to be able to disable power domains
that have been enabled by boot firmware using the vote register.

Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220520100948.19622-4-johan+linaro@kernel.org
2022-06-25 22:38:02 -05:00
Bjorn Andersson
d65d005f9a clk: qcom: add sc8280xp GCC driver
Add support for the Global Clock Controller found in the Qualcomm
SC8280XP platform.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20220505025457.1693716-3-bjorn.andersson@linaro.org
2022-05-19 16:41:32 -05:00