linux-stable.git/drivers/clk/qcom, branch v5.5

clk: qcom: gcc-sdm845: Add missing flag to votable GDSCs

2020-01-05T20:02:21+00:00

On sdm845 devices, during boot we see the following warnings (unless we
have added 'pd_ignore_unused' to the kernel command line):
	hlos1_vote_mmnoc_mmu_tbu_sf_gdsc status stuck at 'on'
	hlos1_vote_mmnoc_mmu_tbu_hf1_gdsc status stuck at 'on'
	hlos1_vote_mmnoc_mmu_tbu_hf0_gdsc status stuck at 'on'
	hlos1_vote_aggre_noc_mmu_tbu2_gdsc status stuck at 'on'
	hlos1_vote_aggre_noc_mmu_tbu1_gdsc status stuck at 'on'
	hlos1_vote_aggre_noc_mmu_pcie_tbu_gdsc status stuck at 'on'
	hlos1_vote_aggre_noc_mmu_audio_tbu_gdsc status stuck at 'on'

As the name of these GDSCs suggests, they are "votable" and in downstream
DT, they all have the property "qcom,no-status-check-on-disable", which
means that we should not poll the status bit when we disable them.

Luckily the VOTABLE flag already exists and it does exactly what we need,
so let's make use of it to make the warnings disappear.

Fixes: 06391eddb60a ("clk: qcom: Add Global Clock controller (GCC) driver for SDM845")
Reported-by: Rob Clark 
Signed-off-by: Georgi Djakov 
Link: https://lkml.kernel.org/r/20191126153437.11808-1-georgi.djakov@linaro.org
Tested-by: Rob Clark 
Signed-off-by: Stephen Boyd

clk: qcom: Avoid SMMU/cx gdsc corner cases

2019-12-19T06:02:27+00:00

Mark the msm8998 cpu CX gdsc as votable and use the hw control to avoid
corner cases with SMMU per hardware documentation.

Fixes: 3f7df5baa259 ("clk: qcom: Add MSM8998 GPU Clock Controller (GPUCC) driver")
Signed-off-by: Jeffrey Hugo 
Link: https://lkml.kernel.org/r/20191217171905.5619-1-jeffrey.l.hugo@gmail.com
Signed-off-by: Stephen Boyd

clk: qcom: gcc-sc7180: Fix setting flag for votable GDSCs

2019-12-19T05:35:58+00:00

Commit 17269568f7267 ("clk: qcom: Add Global Clock controller (GCC)
driver for SC7180") sets the VOTABLE flag in .pwrsts, but it needs
to be set in .flags, fix this.

Fixes: 17269568f7267 ("clk: qcom: Add Global Clock controller (GCC) driver for SC7180")
Signed-off-by: Matthias Kaehlcke 
Link: https://lkml.kernel.org/r/20191204120341.1.I9971817e83ee890d1096c43c5a6ce6ced53d5bd3@changeid
Signed-off-by: Stephen Boyd

Merge branch 'thermal/next' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux

2019-12-05T19:21:24+00:00

Pull thermal management updates from Zhang Rui:

 - Fix a deadlock regression in thermal core framework, which was
   introduced in 5.3 (Wei Wang)

 - Initialize thermal control framework earlier to enable thermal
   mitigation during boot (Amit Kucheria)

 - Convert the Intelligent Power Allocator (IPA) thermal governor to
   follow the generic PM_EM instead of its own Energy Model (Quentin
   Perret)

 - Introduce a new Amlogic soc thermal driver (Guillaume La Roque)

 - Add interrupt support for tsens thermal driver (Amit Kucheria)

 - Add support for MSM8956/8976 in tsens thermal driver
   (AngeloGioacchino Del Regno)

 - Add support for r8a774b1 in rcar thermal driver (Biju Das)

 - Add support for Thermal Monitor Unit v2 in qoriq thermal driver
   (Yuantian Tang)

 - Some other fixes/cleanups on thermal core framework and soc thermal
   drivers (Colin Ian King, Daniel Lezcano, Hsin-Yi Wang, Tian Tao)

* 'thermal/next' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux: (32 commits)
  thermal: Fix deadlock in thermal thermal_zone_device_check
  thermal: cpu_cooling: Migrate to using the EM framework
  thermal: cpu_cooling: Make the power-related code depend on IPA
  PM / EM: Declare EM data types unconditionally
  arm64: defconfig: Enable CONFIG_ENERGY_MODEL
  drivers: thermal: tsens: fix potential integer overflow on multiply
  thermal: cpu_cooling: Reorder the header file
  thermal: cpu_cooling: Remove pointless dependency on CONFIG_OF
  thermal: no need to set .owner when using module_platform_driver
  thermal: qcom: tsens-v1: Fix kfree of a non-pointer value
  cpufreq: qcom-hw: Move driver initialization earlier
  clk: qcom: Initialize clock drivers earlier
  cpufreq: Initialize cpufreq-dt driver earlier
  cpufreq: Initialize the governors in core_initcall
  thermal: Initialize thermal subsystem earlier
  thermal: Remove netlink support
  dt: thermal: tsens: Document compatible for MSM8976/56
  thermal: qcom: tsens-v1: Add support for MSM8956 and MSM8976
  MAINTAINERS: add entry for Amlogic Thermal driver
  thermal: amlogic: Add thermal driver to support G12 SoCs
  ...

clk: qcom: rpmh: Reuse sdm845 clks for sm8150

2019-11-08T21:07:04+00:00

The SM8150 list of clks is almost the same as the list for SDM845,
except there isn't an IPA clk. Just point to the SDM845 clks from the
SM8150 list for now so we can reduce the amount of struct bloat in this
driver.

Suggested-by: Vinod Koul 
Cc: Taniya Das 
Signed-off-by: Stephen Boyd 
Link: https://lkml.kernel.org/r/20191107214018.184105-1-sboyd@kernel.org
Reviewed-by: Vinod Koul

clk: qcom: Add MSM8998 GPU Clock Controller (GPUCC) driver

2019-11-07T21:43:19+00:00

The GPUCC manages the clocks for the Adreno GPU found on MSM8998.

Signed-off-by: Jeffrey Hugo 
Link: https://lkml.kernel.org/r/20191031185733.15553-1-jeffrey.l.hugo@gmail.com
Signed-off-by: Stephen Boyd

clk: qcom: Allow constant ratio freq tables for rcg

2019-11-07T21:43:19+00:00

Some RCGs (the gfx_3d_src_clk in msm8998 for example) are basically just
some constant ratio from the input across the entire frequency range.  It
would be great if we could specify the frequency table as a single entry
constant ratio instead of a long list, ie:

	{ .src = P_GPUPLL0_OUT_EVEN, .pre_div = 3 },
        { }

So, lets support that.

We need to fix a corner case in qcom_find_freq() where if the freq table
is non-null, but has no frequencies, we end up returning an "entry" before
the table array, which is bad.  Then, we need ignore the freq from the
table, and instead base everything on the requested freq.

Suggested-by: Stephen Boyd 
Signed-off-by: Jeffrey Hugo 
Link: https://lkml.kernel.org/r/20191031185715.15504-1-jeffrey.l.hugo@gmail.com
Signed-off-by: Stephen Boyd

clk: qcom: smd: Add missing pnoc clock

2019-11-07T21:42:03+00:00

When MSM8998 support was added, and analysis was done to determine what
clocks would be consumed.  That analysis had a flaw, which caused the
pnoc to be skipped.  The pnoc clock needs to be on to access the uart
for the console.  The clock is on from boot, but has no consumer votes
in the RPM.  When we attempt to boot the modem, it causes the RPM to
turn off pnoc, which kills our access to the console and causes CPU hangs.

We need pnoc to be defined, so that clk_smd_rpm_handoff() will put in
an implicit vote for linux and prevent issues when booting modem.
Hopefully pnoc can be consumed by the interconnect framework in future
so that Linux can rely on explicit votes.

Fixes: 6131dc81211c ("clk: qcom: smd: Add support for MSM8998 rpm clocks")
Signed-off-by: Jeffrey Hugo 
Link: https://lkml.kernel.org/r/20191107190615.5656-1-jeffrey.l.hugo@gmail.com
Signed-off-by: Stephen Boyd

clk: qcom: Enumerate clocks and reset needed to boot the 8998 modem

2019-11-07T21:41:40+00:00

We need to control five additional clocks and a reset inorder to boot the
modem on msm8998.  If we can boot the modem, we have a place to run the
wlan firmware and get wifi up and running.

Signed-off-by: Jeffrey Hugo 
Link: https://lkml.kernel.org/r/20191107192136.5880-1-jeffrey.l.hugo@gmail.com
Signed-off-by: Stephen Boyd

clk: qcom: clk-rpmh: Add support for RPMHCC for SC7180

2019-11-07T21:20:37+00:00

Add support for clock RPMh driver to vote for ARC and VRM managed
clock resources.

Signed-off-by: Taniya Das 
Link: https://lkml.kernel.org/r/1572371299-16774-4-git-send-email-tdas@codeaurora.org
Signed-off-by: Stephen Boyd