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[ Upstream commit 71021db1c532c2545ae53b9ee85b37b7154f51d4 ]
The gpll4 postdiv is actually a div4, so make sure that Linux is aware of
this.
This fixes the following error messages:
mmc1: Card appears overclocked; req 200000000 Hz, actual 343999999 Hz
mmc1: Card appears overclocked; req 400000000 Hz, actual 687999999 Hz
Fixes: aec89f78cf01 ("clk: qcom: Add support for msm8994 global clock controller")
Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Link: https://lore.kernel.org/r/20220319174940.341137-1-konrad.dybcio@somainline.org
Tested-by: Petr Vorel <petr.vorel@gmail.com>
Reviewed-by: Petr Vorel <petr.vorel@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit b527358cb4cd58a8279c9062b0786f1fab628fdc ]
Support the new numerator and denominator for pixel clock on SM8350 and
support rgb101010, RGB888 use cases on SM8450.
Fixes: 99cbd064b059f ("clk: qcom: Support display RCG clocks")
Signed-off-by: Taniya Das <tdas@codeaurora.org>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220227175536.3131-2-tdas@codeaurora.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 58922910add18583d5273c2edcdb9fd7bf4eca02 ]
The display pixel clock has a requirement on certain newer platforms to
support M/N as (2/3) and the final D value calculated results in
underflow errors.
As the current implementation does not check for D value is within
the accepted range for a given M & N value. Update the logic to
calculate the final D value based on the range.
Fixes: 99cbd064b059f ("clk: qcom: Support display RCG clocks")
Signed-off-by: Taniya Das <tdas@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220227175536.3131-1-tdas@codeaurora.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit b77d8306d84f83d1da68028a68c91da9c867b6f6 ]
Use floor ops on SDCC1 APPS clock in order to round down selected clock
frequency and avoid overclocking SD/eMMC cards.
For example, currently HS200 cards were failling tuning as they were
actually being clocked at 384MHz instead of 192MHz.
This caused some boards to disable 1.8V I/O and force the eMMC into the
standard HS mode (50MHz) and that appeared to work despite the eMMC being
overclocked to 96Mhz in that case.
There was a previous commit to use floor ops on SDCC clocks, but it looks
to have only covered SDCC2 clock.
Fixes: 9607f6224b39 ("clk: qcom: ipq8074: add PCIE, USB and SDCC clocks")
Signed-off-by: Dirk Buchwalder <buchwalder@posteo.de>
Signed-off-by: Robert Marko <robimarko@gmail.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220210173100.505128-1-robimarko@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 4e7c4d3652f96f41179aab3ff53025c7a550d689 ]
GDSCs have multiple transition delays which are used for the GDSC FSM
states. Older targets/designs required these values to be updated from
gdsc code to certain default values for the FSM state to work as
expected. But on the newer targets/designs the values updated from the
GDSC driver can hamper the FSM state to not work as expected.
On SC7180 we observe black screens because the gdsc is being
enabled/disabled very rapidly and the GDSC FSM state does not work as
expected. This is due to the fact that the GDSC reset value is being
updated from SW.
Thus add support to update the transition delay from the clock
controller gdscs as required.
Fixes: 45dd0e55317cc ("clk: qcom: Add support for GDSCs)
Signed-off-by: Taniya Das <tdas@codeaurora.org>
Link: https://lore.kernel.org/r/20220223185606.3941-1-tdas@codeaurora.org
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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commit 9a61f813fcc8d56d85fcf9ca6119cf2b5ac91dd5 upstream.
The function mux_get_parent() uses qcom_find_src_index() to find the
parent clock index, which is incorrect: qcom_find_src_index() uses src
enum for the lookup, while mux_get_parent() should use cfg field (which
corresponds to the register value). Add qcom_find_cfg_index() function
doing this kind of lookup and use it for mux parent lookup.
Fixes: df964016490b ("clk: qcom: add parent map for regmap mux")
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20211115233407.1046179-1-dmitry.baryshkov@linaro.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 05cf3ec00d460b50088d421fb878a0f83f57e262 ]
The gcc_aggre1_pnoc_ahb_clk is crucial for the proper MSM8996/APQ8096
functioning. If it gets disabled, several subsytems will stop working
(including eMMC/SDCC and USB). There are no in-kernel users of this
clock, so it is much simpler to remove from the kernel.
The clock was first removed in the commit 9e60de1cf270 ("clk: qcom:
Remove gcc_aggre1_pnoc_ahb_clk from msm8996") by Stephen Boyd, but got
added back in the commit b567752144e3 ("clk: qcom: Add some missing gcc
clks for msm8996") by Rajendra Nayak.
Let's remove it again in hope that nobody adds it back.
Reported-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Cc: Rajendra Nayak <rnayak@codeaurora.org>
Cc: Konrad Dybcio <konrad.dybcio@somainline.org>
Fixes: b567752144e3 ("clk: qcom: Add some missing gcc clks for msm8996")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20211104011155.2209654-1-dmitry.baryshkov@linaro.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 790b516ada10a4dcc0f0a56dc0ced475d86d5820 ]
CONFIG_QCOM_A53PLL is tristate option and therefore this driver can be
compiled as a module. This patch adds missing MODULE_DEVICE_TABLE
definition which generates correct modalias for automatic loading of
this driver when it is built as an external module.
Fixes: 0c6ab1b8f894 ("clk: qcom: Add A53 PLL support")
Signed-off-by: Chen Hui <clare.chenhui@huawei.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20210409082352.233810-3-clare.chenhui@huawei.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 292f75ecff07e8a07fe2e3e19b4b567d0b698842 ]
All of the GPLLs in the MSM8998 Global Clock Controller are Fabia PLLs
and not generic alphas: this was producing bad effects over the entire
clock tree of MSM8998, where any GPLL child clock was declaring a false
clock rate, due to their parent also showing the same.
The issue resides in the calculation of the clock rate for the specific
Alpha PLL type, where Fabia has a different register layout; switching
the MSM8998 GPLLs to the correct Alpha Fabia PLL type fixes the rate
(calculation) reading. While at it, also make these PLLs fixed since
their rate is supposed to *never* be changed while the system runs, as
this would surely crash the entire SoC.
Now all the children of all the PLLs are also complying with their
specified clock table and system stability is improved.
Fixes: b5f5f525c547 ("clk: qcom: Add MSM8998 Global Clock Control (GCC) driver")
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
Link: https://lore.kernel.org/r/20210114221059.483390-7-angelogioacchino.delregno@somainline.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit d46e5a39f9be9288f1ce2170c4c7f8098f4e7f68 ]
This was likely overlooked while porting the driver upstream.
Reported-by: Pavel Dubrova <pashadubrova@gmail.com>
Signed-off-by: Konrad Dybcio <konradybcio@gmail.com>
Link: https://lore.kernel.org/r/20200922120909.97203-1-konradybcio@gmail.com
Fixes: f2a76a2955c0 ("clk: qcom: Add Global Clock controller (GCC) driver for SDM660")
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 3386af51d3bcebcba3f7becdb1ef2e384abe90cf ]
Add missing halt_check, hwcg_reg and hwcg_bit properties.
These were likely omitted when porting the driver upstream.
Signed-off-by: Konrad Dybcio <konradybcio@gmail.com>
Link: https://lore.kernel.org/r/20200726111215.22361-9-konradybcio@gmail.com
Fixes: f2a76a2955c0 ("clk: qcom: Add Global Clock controller (GCC) driver for SDM660")
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit c8b9002f44e4a1d2771b2f59f6de900864b1f9d7 ]
0x44 isn't a register offset, it is the value that goes into CAL_L_VAL.
Fixes: 548a909597d5 ("clk: qcom: clk-alpha-pll: Add support for Trion PLLs")
Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Tested-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20200709135251.643-3-jonathan@marek.ca
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 667f39b59b494d96ae70f4217637db2ebbee3df0 ]
Fix the parents and set BRANCH_HALT_SKIP. From the downstream driver it
should be a 500us delay and not skip, however this matches what was done
for other clocks that had 500us delay in downstream.
Fixes: f73a4230d5bb ("clk: qcom: gcc: Add GPU and NPU clocks for SM8150")
Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Tested-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20200709135251.643-2-jonathan@marek.ca
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit dad4e7fda4bdc1a6357db500a7bab8843c08e521 ]
The current implementation always uses rpmh_write_async, which doesn't
wait for completion. That's fine for disable requests since there's no
immediate need for the clocks and they can be disabled in the
background. However, for enable requests we need to ensure the clocks
are actually enabled before returning to the client. Otherwise, clients
can end up accessing their HW before the necessary clocks are enabled,
which can lead to bus errors.
Use the synchronous version of this API (rpmh_write) for enable requests
in the active set to ensure completion.
Completion isn't required for sleep/wake sets, since they don't take
effect until after we enter sleep. All rpmh requests are automatically
flushed prior to entering sleep.
Fixes: 9c7e47025a6b ("clk: qcom: clk-rpmh: Add QCOM RPMh clock driver")
Signed-off-by: Mike Tipton <mdtipton@codeaurora.org>
Link: https://lkml.kernel.org/r/20200215021232.1149-1-mdtipton@codeaurora.org
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
[sboyd@kernel.org: Reorg code a bit for readability, rename to 'wait' to
make local variable not conflict with completion.h mechanism]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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commit 37c72e4cae37f0dace1abb3711ede7fbc6d0862a upstream.
Add the missing ufs card and ufs phy clocks for SM8150. They were missed
in earlier addition of clock driver.
Fixes: 2a1d7eb854bb ("clk: qcom: gcc: Add global clock controller driver for SM8150")
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Link: https://lkml.kernel.org/r/20200513065420.32735-2-vkoul@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit f73a4230d5bbc8fc7e1a2479ac997f786111c7bb upstream.
Add the GPU and NPU clocks for SM8150. They were missed in earlier
addition of clock driver.
Fixes: 2a1d7eb854bb ("clk: qcom: gcc: Add global clock controller driver for SM8150")
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Link: https://lkml.kernel.org/r/20200513065420.32735-1-vkoul@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit f47ab3c2f5338828a67e89d5f688d2cef9605245 ]
During the process of debugging a processor derived from the msm8916 which
we found the new processor was not starting one of its PLLs.
After tracing the addresses and writes that downstream was doing and
comparing to upstream it became obvious that we were writing to a different
register location than downstream when trying to configure the PLL.
This error is also present in upstream msm8916.
As an example clk-pll.c::clk_pll_recalc_rate wants to write to
pll->config_reg updating the bit-field POST_DIV_RATIO. That bit-field is
defined in PLL_USER_CTL not in PLL_CONFIG_CTL. Taking the BIMC PLL as an
example
lm80-p0436-13_c_qc_snapdragon_410_processor_hrd.pdf
0x01823010 GCC_BIMC_PLL_USER_CTL
0x01823014 GCC_BIMC_PLL_CONFIG_CTL
This pattern is repeated for gpll0, gpll1, gpll2 and bimc_pll.
This error is likely not apparent since the bootloader will already have
initialized these PLLs.
This patch corrects the location of config_reg from PLL_CONFIG_CTL to
PLL_USER_CTL for all relevant PLLs on msm8916.
Fixes commit 3966fab8b6ab ("clk: qcom: Add MSM8916 Global Clock Controller support")
Cc: Georgi Djakov <georgi.djakov@linaro.org>
Cc: Andy Gross <agross@kernel.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Link: https://lkml.kernel.org/r/20200329124116.4185447-1-bryan.odonoghue@linaro.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit a76f274182f054481182c81cd62bb8794a5450a6 ]
Documentation says that gpll0 is parent of gpll0_out_even, somehow
driver coded that as bi_tcxo, so fix it
Fixes: 2a1d7eb854bb ("clk: qcom: gcc: Add global clock controller driver for SM8150")
Reported-by: Jonathan Marek <jonathan@marek.ca>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Link: https://lkml.kernel.org/r/20200521052728.2141377-1-vkoul@kernel.org
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 87ec9adcca71801a44ddb311185b17df09839ab5 ]
It turns out booting the modem is dependent on a bimc vote from Linux on
msm8998. To make the modem happy, add the bimc clock to rely on the
default vote from rpmcc. Once we have interconnect support, bimc should
be controlled properly.
Fixes: 6131dc81211c ("clk: qcom: smd: Add support for MSM8998 rpm clocks")
Signed-off-by: Jeffrey Hugo <jeffrey.l.hugo@gmail.com>
Link: https://lkml.kernel.org/r/20191217165409.4919-1-jeffrey.l.hugo@gmail.com
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 908b050114d8fefdddc57ec9fbc213c3690e7f5f ]
When I got my clock parenting slightly wrong I ended up with a crash
that looked like this:
Unable to handle kernel NULL pointer dereference at virtual
address 0000000000000000
...
pc : clk_hw_get_rate+0x14/0x44
...
Call trace:
clk_hw_get_rate+0x14/0x44
_freq_tbl_determine_rate+0x94/0xfc
clk_rcg2_determine_rate+0x2c/0x38
clk_core_determine_round_nolock+0x4c/0x88
clk_core_round_rate_nolock+0x6c/0xa8
clk_core_round_rate_nolock+0x9c/0xa8
clk_core_set_rate_nolock+0x70/0x180
clk_set_rate+0x3c/0x6c
of_clk_set_defaults+0x254/0x360
platform_drv_probe+0x28/0xb0
really_probe+0x120/0x2dc
driver_probe_device+0x64/0xfc
device_driver_attach+0x4c/0x6c
__driver_attach+0xac/0xc0
bus_for_each_dev+0x84/0xcc
driver_attach+0x2c/0x38
bus_add_driver+0xfc/0x1d0
driver_register+0x64/0xf8
__platform_driver_register+0x4c/0x58
msm_drm_register+0x5c/0x60
...
It turned out that clk_hw_get_parent_by_index() was returning NULL and
we weren't checking. Let's check it so that we don't crash.
Fixes: ac269395cdd8 ("clk: qcom: Convert to clk_hw based provider APIs")
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Link: https://lkml.kernel.org/r/20200203103049.v4.1.I7487325fe8e701a68a07d3be8a6a4b571eca9cfa@changeid
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 21e157c62eeded8b1558a991b4820b761d48a730 ]
The DFS frequency table logic overwrites 'cfg' while detecting the
parent clk and then later on in clk_rcg2_dfs_populate_freq() we use that
same variable to figure out the mode of the clk, either MND or not. Add
a new variable to hold the parent clk bit so that 'cfg' is left
untouched for use later.
This fixes problems in detecting the supported frequencies for any clks
in DFS mode.
Fixes: cc4f6944d0e3 ("clk: qcom: Add support for RCG to register for DFS")
Reported-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lkml.kernel.org/r/20200128193329.45635-1-sboyd@kernel.org
Tested-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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commit 5e82548e26ef62e257dc2ff37c11acb5eb72728e upstream.
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 <robdclark@gmail.com>
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Link: https://lkml.kernel.org/r/20191126153437.11808-1-georgi.djakov@linaro.org
Tested-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit efd164b5520afd6fb2883b68e0d408a7de29c491 ]
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 <sboyd@kernel.org>
Signed-off-by: Jeffrey Hugo <jeffrey.l.hugo@gmail.com>
Link: https://lkml.kernel.org/r/20191031185715.15504-1-jeffrey.l.hugo@gmail.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit ba1d366de261981c0dd04fac44d2ce3a5eba2eaa ]
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 <jeffrey.l.hugo@gmail.com>
Link: https://lkml.kernel.org/r/20191107190615.5656-1-jeffrey.l.hugo@gmail.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk updates from Stephen Boyd:
"We have a small collection of core framework updates this time, mostly
around clk registration by clk providers and debugfs "nice to haves"
for rate constraints. I'll highlight that we're now setting the
clk_init_data pointer inside struct clk_hw to NULL during
clk_register(), which may break some drivers that thought they could
use that pointer during normal operations. That change has been
sitting in next for a while now but maybe something is still broken.
We'l see. Other than that the core framework changes aren't invasive
and they're fixing bugs, simplifying, and making things better.
On the clk driver side we got the usual addition of new SoC support,
new features for existing drivers, and bug fixes scattered throughout.
The biggest diffstat is the Amlogic driver that gained CPU clk support
in addition to migrating to the new way of specifying clk parents.
After that the Qualcomm, i.MX, Mediatek, and Rockchip clk drivers got
support for various new SoCs and clock controllers from those vendors.
Core:
- Drop NULL checks in clk debugfs
- Add min/max rates to clk debugfs
- Set clk_init_data pointer inside clk_hw to NULL after registration
- Make clk_bulk_get_all() return an 'id' corresponding to clock-names
- Evict parents from parent cache when they're unregistered
New Drivers:
- Add clock driver for i.MX8MN SoCs
- Support aspeed AST2600 SoCs
- Support for Mediatek MT6779 SoCs
- Support qcom SM8150 GCC and RPMh clks
- Support qcom QCS404 WCSS clks
- Add CPU clock support for Armada 7K/8K (specifically AP806 and AP807)
- Addition of clock driver for Rockchip rk3308 SoCs
Updates:
- Add regulator support to the cdce925 clk driver
- Add support for Raspberry Pi 4 bcm2711 SoCs
- Add SDIO gate support to aspeed driver
- Add missing of_node_put() calls in various clk drivers
- Migrate Amlogic driver to new clock parent description method
- Add DVFS support to Amlogic Meson g12
- Add Amlogic Meson g12a reset support to the axg audio clock controller
- Add sm1 support to the Amlogic Meson g12a clock controller
- Switch i.MX8MM clock driver to platform driver
- Add Hifi4 DSP related clocks for i.MX8QXP SoC
- Fix Audio PLL setting and parent clock for USB
- Misc i.MX8 clock driver improvements and corrections
- Set floor ops for Qualcomm SD clks so that rounding works
- Fix "always-on" Clock Domains on Renesas R-Car M1A, RZ/A1, RZ/A2, and RZ/N1
- Enable the Allwinner V3 SoC and fix the i2s clock for H6"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (137 commits)
clk: Drop !clk checks in debugfs dumping
clk: imx: imx8mn: fix pll mux bit
clk: imx: imx8mm: fix pll mux bit
clk: imx: clk-pll14xx: unbypass PLL by default
clk: imx: pll14xx: avoid glitch when set rate
clk: mvebu: ap80x: add AP807 clock support
clk: mvebu: ap806: Prepare the introduction of AP807 clock support
clk: mvebu: ap806: add AP-DCLK (hclk) to system controller driver
clk: mvebu: ap806: be more explicit on what SaR is
clk: mvebu: ap80x-cpu: add AP807 CPU clock support
clk: mvebu: ap806-cpu: prepare mapping of AP807 CPU clock
dt-bindings: ap806: Document AP807 clock compatible
dt-bindings: ap80x: Document AP807 CPU clock compatible
clk: sprd: add missing kfree
clk: at91: allow 24 Mhz clock as input for PLL
clk: Make clk_bulk_get_all() return a valid "id"
clk: actions: Fix factor clk struct member access
clk: qcom: rcg: Return failure for RCG update
clk: remove extra ---help--- tags in Kconfig
clk: add include guard to clk-conf.h
...
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into clk-next
- Set clk_init_data pointer inside clk_hw to NULL after registration
* clk-init-destroy:
clk: Overwrite clk_hw::init with NULL during clk_register()
clk: sunxi: Don't call clk_hw_get_name() on a hw that isn't registered
clk: ti: Don't reference clk_init_data after registration
clk: qcom: Remove error prints from DFS registration
rtc: sun6i: Don't reference clk_init_data after registration
clk: zx296718: Don't reference clk_init_data after registration
clk: milbeaut: Don't reference clk_init_data after registration
clk: socfpga: deindent code to proper indentation
phy: ti: am654-serdes: Don't reference clk_init_data after registration
clk: sprd: Don't reference clk_init_data after registration
clk: socfpga: Don't reference clk_init_data after registration
clk: sirf: Don't reference clk_init_data after registration
clk: qcom: Don't reference clk_init_data after registration
clk: meson: axg-audio: Don't reference clk_init_data after registration
clk: lochnagar: Don't reference clk_init_data after registration
clk: actions: Don't reference clk_init_data after registration
* clk-doc:
clk: remove extra ---help--- tags in Kconfig
clk: add include guard to clk-conf.h
clk: Document of_parse_clkspec() some more
clk: Remove extraneous 'for' word in comments
* clk-imx: (32 commits)
clk: imx: imx8mn: fix pll mux bit
clk: imx: imx8mm: fix pll mux bit
clk: imx: clk-pll14xx: unbypass PLL by default
clk: imx: pll14xx: avoid glitch when set rate
clk: imx: imx8mn: fix audio pll setting
clk: imx8mn: Add necessary frequency support for ARM PLL table
clk: imx8mn: Add missing rate_count assignment for each PLL structure
clk: imx8mn: fix int pll clk gate
clk: imx8mn: Add GIC clock
clk: imx8mn: Fix incorrect parents
clk: imx8mm: Fix incorrect parents
clk: imx8mq: Fix sys3 pll references
clk: imx8mq: Unregister clks when of_clk_add_provider failed
clk: imx8mm: Unregister clks when of_clk_add_provider failed
clk: imx8mq: Mark AHB clock as critical
clk: imx8mn: Keep uart clocks on for early console
clk: imx: Remove unused function statement
clk: imx7ulp: Make sure earlycon's clock is enabled
clk: imx8mm: Switch to platform driver
clk: imx: imx8mm: fix audio pll setting
...
* clk-allwinner:
clk: sunxi-ng: h6: Allow I2S to change parent rate
clk: sunxi-ng: v3s: add Allwinner V3 support
clk: sunxi-ng: v3s: add missing clock slices for MMC2 module clocks
dt-bindings: clk: sunxi-ccu: add compatible string for V3 CCU
clk: sunxi-ng: v3s: add the missing PLL_DDR1
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In case of update config failure, return -EBUSY, so that consumers could
handle the failure gracefully.
Signed-off-by: Taniya Das <tdas@codeaurora.org>
Link: https://lkml.kernel.org/r/1557339895-21952-2-git-send-email-tdas@codeaurora.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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The max register is 0x23004 as per the manual (the current
max_register that this commit is fixing is actually out of bounds).
Fixes: 892df0191b29 ("clk: qcom: Add QCS404 TuringCC")
Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>
Link: https://lkml.kernel.org/r/20190909085430.8700-1-jorge.ramirez-ortiz@linaro.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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Add support for rpmh clocks found in SM8150
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lkml.kernel.org/r/20190826173120.2971-5-vkoul@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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Convert the rpmh clock driver to use the new parent data scheme by
specifying the parent data for board clock.
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Link: https://lkml.kernel.org/r/20190826173120.2971-3-vkoul@kernel.org
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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Update global clock controller SDCC2/4 clocks to use the floor rcg ops,
so as to use the rounded down clock rates for these clocks.
Signed-off-by: Taniya Das <tdas@codeaurora.org>
Link: https://lkml.kernel.org/r/20190909074410.18977-1-tdas@codeaurora.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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Update the gcc qcs404 clock driver to use floor ops for sdcc clocks. As
disuccsed in [1] it is good idea to use floor ops for sdcc clocks as we
dont want the clock rates to do round up.
[1]: https://lore.kernel.org/linux-arm-msm/20190830195142.103564-1-swboyd@chromium.org/
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Link: https://lkml.kernel.org/r/20190906045659.20621-1-vkoul@kernel.org
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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Some MMC cards fail to enumerate properly when inserted into an MMC slot
on sdm845 devices. This is because the clk ops for qcom clks round the
frequency up to the nearest rate instead of down to the nearest rate.
For example, the MMC driver requests a frequency of 52MHz from
clk_set_rate() but the qcom implementation for these clks rounds 52MHz
up to the next supported frequency of 100MHz. The MMC driver could be
modified to request clk rate ranges but for now we can fix this in the
clk driver by changing the rounding policy for this clk to be round down
instead of round up.
Fixes: 06391eddb60a ("clk: qcom: Add Global Clock controller (GCC) driver for SDM845")
Reported-by: Douglas Anderson <dianders@chromium.org>
Cc: Taniya Das <tdas@codeaurora.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lkml.kernel.org/r/20190830195142.103564-1-swboyd@chromium.org
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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The macro to generate a Bus Controller Manager (BCM) TCS command is used
by the interconnect driver but might also be interesting to other
drivers that need to construct TCS commands for sub processors so move
it out of the sdm845 specific file and into the header.
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
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These aren't useful and they reference the init structure name. Let's
just drop them.
Cc: Taniya Das <tdas@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lkml.kernel.org/r/20190815160020.183334-5-sboyd@kernel.org
Acked-by: Taniya Das <tdas@codeaurora.org>
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A future patch is going to change semantics of clk_register() so that
clk_hw::init is guaranteed to be NULL after a clk is registered. Avoid
referencing this member here so that we don't run into NULL pointer
exceptions.
Cc: Taniya Das <tdas@codeaurora.org>
Cc: Andy Gross <agross@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lkml.kernel.org/r/20190731193517.237136-5-sboyd@kernel.org
Acked-by: Taniya Das <tdas@codeaurora.org>
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Extend the probe by index API in common code to be used
by other qcom clock controller.
Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
|
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Add support for the WCSS QDSP gcc clock control used on qcs404
based devices. This would allow wcss remoteproc driver to control
the required gcc clocks to bring the subsystem out of reset.
Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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QCOM_A53PLL and QCOM_CLK_APCS_MSM8916 stand out as the only options
built by default. Let's bring them back in line with the rest.
Signed-off-by: Marc Gonzalez <marc.w.gonzalez@free.fr>
Link: https://lkml.kernel.org/r/d654907d-a3a2-a00f-d6f5-3a34ae25ebcf@free.fr
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Georgi Djakov <georgi.djakov@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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Add the clocks supported in global clock controller which clock the
peripherals like BLSPs, SDCC, USB, MDSS etc. Register all the clocks
to the clock framework for the clients to be able to request for them.
Signed-off-by: Deepak Katragadda <dkatraga@codeaurora.org>
Signed-off-by: Taniya Das <tdas@codeaurora.org>
[vkoul: port to upstream and tidy-up
port to new parent scheme
Add comments for critical clocks]]
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Link: https://lkml.kernel.org/r/20190722074348.29582-6-vkoul@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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Add programming sequence support for managing the Trion
PLLs.
Signed-off-by: Deepak Katragadda <dkatraga@codeaurora.org>
Signed-off-by: Taniya Das <tdas@codeaurora.org>
[vkoul: port to upstream and tidy-up
use upstream way of specifying PLLs]
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Link: https://lkml.kernel.org/r/20190722074348.29582-4-vkoul@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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We want users to code properly and fix the post_div_table missing and
not rely on core to check. So remove the post_div_table check.
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lkml.kernel.org/r/20190722074348.29582-3-vkoul@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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Commit 8f9fab480c7a ("linux/kernel.h: fix overflow for
DIV_ROUND_UP_ULL") fixed the overflow for DIV_ROUND_UP_ULL, so we no
longer need the cast for DIV_ROUND_UP_ULL, so remove the unnecessary
u64 casts.
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Link: https://lkml.kernel.org/r/20190722074348.29582-2-vkoul@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk updates from Stephen Boyd:
"This round of clk driver and framework updates is heavy on the driver
update side. The two main highlights in the core framework are the
addition of an bulk clk_get API that handles optional clks and an
extra debugfs file that tells the developer about the current parent
of a clk.
The driver updates are dominated by i.MX in the diffstat, but that is
mostly because that SoC has started converting to the clk_hw style of
clk registration. The next big update is in the Amlogic meson clk
driver that gained some support for audio, cpu, and temperature clks
while fixing some PLL issues. Finally, the biggest thing that stands
out is the conversion of a large part of the Allwinner sunxi-ng driver
to the new clk parent scheme that uses less strings and more pointer
comparisons to match clk parents and children up.
In general, it looks like we have a lot of little fixes and tweaks
here and there to clk data along with the normal addition of a handful
of new drivers and a couple new core framework features.
Core:
- Add a 'clk_parent' file in clk debugfs
- Add a clk_bulk_get_optional() API (with devm too)
New Drivers:
- Support gated clk controller on MIPS based BCM63XX SoCs
- Support SiLabs Si5341 and Si5340 chips
- Support for CPU clks on Raspberry Pi devices
- Audsys clock driver for MediaTek MT8516 SoCs
Updates:
- Convert a large portion of the Allwinner sunxi-ng driver to new clk parent scheme
- Small frequency support for SiLabs Si544 chips
- Slow clk support for AT91 SAM9X60 SoCs
- Remove dead code in various clk drivers (-Wunused)
- Support for Marvell 98DX1135 SoCs
- Get duty cycle of generic pwm clks
- Improvement in mmc phase calculation and cleanup of some rate defintions
- Switch i.MX6 and i.MX7 clock drivers to clk_hw based APIs
- Add GPIO, SNVS and GIC clocks for i.MX8 drivers
- Mark imx6sx/ul/ull/sll MMDC_P1_IPG and imx8mm DRAM_APB as critical clock
- Correct imx7ulp nic1_bus_clk and imx8mm audio_pll2_clk clock setting
- Add clks for new Exynos5422 Dynamic Memory Controller driver
- Clock definition for Exynos4412 Mali
- Add CMM (Color Management Module) clocks on Renesas R-Car H3, M3-N, E3, and D3
- Add TPU (Timer Pulse Unit / PWM) clocks on Renesas RZ/G2M
- Support for 32 bit clock IDs in TI's sci-clks for J721e SoCs
- TI clock probing done from DT by default instead of firmware
- Fix Amlogic Meson mpll fractional part and spread sprectrum issues
- Add Amlogic meson8 audio clocks
- Add Amlogic g12a temperature sensors clocks
- Add Amlogic g12a and g12b cpu clocks
- Add TPU (Timer Pulse Unit / PWM) clocks on Renesas R-Car H3, M3-W, and M3-N
- Add CMM (Color Management Module) clocks on Renesas R-Car M3-W
- Add Clock Domain support on Renesas RZ/N1"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (190 commits)
clk: consoldiate the __clk_get_hw() declarations
clk: sprd: Add check for return value of sprd_clk_regmap_init()
clk: lochnagar: Update DT binding doc to include the primary SPDIF MCLK
clk: Add Si5341/Si5340 driver
dt-bindings: clock: Add silabs,si5341
clk: clk-si544: Implement small frequency change support
clk: add BCM63XX gated clock controller driver
devicetree: document the BCM63XX gated clock bindings
clk: at91: sckc: use dedicated functions to unregister clock
clk: at91: sckc: improve error path for sama5d4 sck registration
clk: at91: sckc: remove unnecessary line
clk: at91: sckc: improve error path for sam9x5 sck register
clk: at91: sckc: add support to free slow clock osclillator
clk: at91: sckc: add support to free slow rc oscillator
clk: at91: sckc: add support to free slow oscillator
clk: rockchip: export HDMIPHY clock on rk3228
clk: rockchip: add watchdog pclk on rk3328
clk: rockchip: add clock id for hdmi_phy special clock on rk3228
clk: rockchip: add clock id for watchdog pclk on rk3328
clk: at91: sckc: add support for SAM9X60
...
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into clk-next
- Add a 'clk_parent' file in clk debugfs
- Remove dead code in various clk drivers
* clk-debugfs:
clk: Add clk_parent entry in debugfs
* clk-unused:
clk: qcom: Fix -Wunused-const-variable
clk: mmp: frac: Remove set but not used variable 'prev_rate'
clk: ti: Remove unused functions
clk: mediatek: mt8516: Remove unused variable
* clk-refactor:
clk: clk-cdce706: simplify getting the adapter of a client
clk: Simplify clk_core_can_round()
* clk-qoriq:
clk: qoriq: add support for lx2160a
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'clk-xgene-limit' and 'clk-meson' into clk-next
* clk-qcom-gdsc-warn:
clk: qcom: gdsc: WARN when failing to toggle
* clk-ingenic:
MIPS: Remove dead code
clk: ingenic: Remove unused functions
MIPS: jz4740: PM: Let CGU driver suspend clocks and set sleep mode
clk: ingenic: Handle setting the Low-Power Mode bit
clk: ingenic: Add missing header in cgu.h
clk: ingenic/jz4725b: Fix "pll half" divider not read/written properly
clk: ingenic/jz4725b: Fix incorrect dividers for main clocks
clk: ingenic/jz4770: Fix incorrect dividers for main clocks
clk: ingenic/jz4740: Fix incorrect dividers for main clocks
clk: ingenic: Add support for divider tables
* clk-qcom-qcs404-reset:
clk: gcc-qcs404: Add PCIe resets
* clk-xgene-limit:
clk: xgene: Don't build COMMON_CLK_XGENE by default
* clk-meson:
clk: meson: g12a: mark fclk_div3 as critical
clk: meson: g12a: Add support for G12B CPUB clocks
dt-bindings: clk: meson: add g12b periph clock controller bindings
clk: meson-g12a: add temperature sensor clocks
dt-bindings: clk: g12a-clkc: add Temperature Sensor clock IDs
clk: meson: meson8b: add the cts_i958 clock
clk: meson: meson8b: add the cts_mclk_i958 clocks
clk: meson: meson8b: add the cts_amclk clocks
dt-bindings: clock: meson8b: add the audio clocks
clk: meson: g12a: add controller register init
clk: meson: eeclk: add init regs
clk: meson: g12a: add mpll register init sequences
clk: meson: mpll: add init callback and regs
clk: meson: axg: spread spectrum is on mpll2
clk: meson: gxbb: no spread spectrum on mpll0
clk: meson: mpll: properly handle spread spectrum
clk: meson: meson8b: fix a typo in the VPU parent names array variable
clk: meson: fix MPLL 50M binding id typo
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Clang produces the following warning
drivers/clk/qcom/gcc-msm8996.c:133:32: warning: unused variable
'gcc_xo_gpll0_gpll2_gpll3_gpll0_early_div_map' [-Wunused-const-variable]
static const struct
parent_map gcc_xo_gpll0_gpll2_gpll3_gpll0_early_div_map[] =
{ ^drivers/clk/qcom/gcc-msm8996.c:141:27: warning: unused variable
'gcc_xo_gpll0_gpll2_gpll3_gpll0_early_div' [-Wunused-const-variable] static
const char * const gcc_xo_gpll0_gpll2_gpll3_gpll0_early_div[] = { ^
drivers/clk/qcom/gcc-msm8996.c:187:32: warning: unused variable
'gcc_xo_gpll0_gpll2_gpll3_gpll1_gpll4_gpll0_early_div_map'
[-Wunused-const-variable] static const struct parent_map
gcc_xo_gpll0_gpll2_gpll3_gpll1_gpll4_gpll0_early_div_map[] = { ^
drivers/clk/qcom/gcc-msm8996.c:197:27: warning: unused variable
'gcc_xo_gpll0_gpll2_gpll3_gpll1_gpll4_gpll0_early_div'
[-Wunused-const-variable] static const char * const
gcc_xo_gpll0_gpll2_gpll3_gpll1_gpll4_gpll0_early_div[] = {
It looks like these were never used.
Fixes: b1e010c0730a ("clk: qcom: Add MSM8996 Global Clock Control (GCC) driver")
Cc: clang-built-linux@googlegroups.com
Link: https://github.com/ClangBuiltLinux/linux/issues/518
Suggested-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Nathan Huckleberry <nhuck@google.com>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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Enabling PCIe requires several of the PCIe related resets from GCC, so
add them all.
Reviewed-by: Niklas Cassel <niklas.cassel@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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Failing to toggle a GDSC as the driver core is attaching the
power-domain to a device will cause a silent probe deferral. Provide an
explicit warning to the developer, in order to reduce the amount of time
it takes to debug this.
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Jeffrey Hugo <jhugo@codeaurora.org>
Tested-by: Jeffrey Hugo <jhugo@codeaurora.org>
Reviewed-by: Marc Gonzalez <marc.w.gonzalez@free.fr>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 and
only version 2 as published by the free software foundation this
program is distributed in the hope that it will be useful but
without any warranty without even the implied warranty of
merchantability or fitness for a particular purpose see the gnu
general public license for more details
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 294 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190529141900.825281744@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
Konrad Dybcio
Taniya Das
Dirk Buchwalder
Dmitry Baryshkov
Chen Hui
AngeloGioacchino Del Regno
Konrad Dybcio
Jonathan Marek
Mike Tipton
Vinod Koul
Bryan O'Donoghue
Jeffrey Hugo
Douglas Anderson
Stephen Boyd
Georgi Djakov
Linus Torvalds
Jorge Ramirez-Ortiz
Stephen Boyd
Jordan Crouse
Govind Singh
Marc Gonzalez
Deepak Katragadda
Nathan Huckleberry
Bjorn Andersson
Thomas Gleixner