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According to the hardware manual for RZ/G2L
(r01uh0914ej0130-rzg2l-rzg2lc.pdf), the computation formula for PLL rate
is as follows:
Fout = ((m + k/65536) * Fin) / (p * 2^s)
and k has values in the range [-32768, 32767]. Dividing k by 65536 with
integer arithmetic gives zero all the time, causing slight differences
b/w what has been set vs. what is displayed. Thus, get rid of this and
decompose the formula before dividing k by 65536.
Fixes: ef3c613ccd68a ("clk: renesas: Add CPG core wrapper for RZ/G2L SoC")
Signed-off-by: Claudiu Beznea <[email protected]>
Reviewed-by: Geert Uytterhoeven <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Geert Uytterhoeven <[email protected]>
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The onitial value of the CPG_PL2SDHI_DSEL bits 0..1 or 4..6 is 01b. The
hardware user's manual (r01uh0914ej0130-rzg2l-rzg2lc.pdf) specifies that
setting 0 is prohibited. Hence rzg2l_cpg_sd_clk_mux_get_parent() should
just read CPG_PL2SDHI_DSEL, trust the value, and return the proper clock
parent index based on the value read.
Fixes: eaff33646f4cb ("clk: renesas: rzg2l: Add SDHI clk mux support")
Signed-off-by: Claudiu Beznea <[email protected]>
Reviewed-by: Geert Uytterhoeven <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Geert Uytterhoeven <[email protected]>
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The SD MUX output (SD0) is further divided by 4 in G2{L,UL}. The
divided clock is SD0_DIV4. SD0_DIV4 is registered with
CLK_SET_RATE_PARENT which means a rate request for it is propagated to
the MUX and could reach rzg2l_cpg_sd_clk_mux_set_parent() concurrently
with the users of SD0.
Add proper locking to avoid concurrent accesses on SD MUX set rate
registers.
Fixes: eaff33646f4cb ("clk: renesas: rzg2l: Add SDHI clk mux support")
Signed-off-by: Claudiu Beznea <[email protected]>
Reviewed-by: Geert Uytterhoeven <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Geert Uytterhoeven <[email protected]>
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The hardware user manual for RZ/G2L (r01uh0914ej0130-rzg2l-rzg2lc.pdf,
chapter 7.4.7 Procedure for Switching Clocks by the Dynamic Switching
Frequency Selectors) specifies that we need to check CPG_PL2SDHI_DSEL
for SD clock switching status.
Fixes: eaff33646f4cb ("clk: renesas: rzg2l: Add SDHI clk mux support")
Signed-off-by: Claudiu Beznea <[email protected]>
Reviewed-by: Geert Uytterhoeven <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Geert Uytterhoeven <[email protected]>
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The clock dividers might be used with clock stop bit enabled or not.
Current tables only support recommended values from the datasheet. This
might result in warnings like below because no valid clock divider is
found. Resulting in a 0 divider.
There are Renesas ARM Trusted Firmware version out there which e.g.
configure 0x201 (shifted logical right by 2: 0x80) and with this match
the added { STPnHCK | 0, 1 }:
https://github.com/renesas-rcar/arm-trusted-firmware/blob/rcar_gen3_v2.3/drivers/renesas/rcar/emmc/emmc_init.c#L108
------------[ cut here ]------------
sd1h: Zero divisor and CLK_DIVIDER_ALLOW_ZERO not set
WARNING: CPU: 1 PID: 1 at drivers/clk/clk-divider.c:141 divider_recalc_rate+0x48/0x70
Modules linked in:
CPU: 1 PID: 1 Comm: swapper/0 Not tainted 6.1.52 #1
Hardware name: Custom board based on r8a7796 (DT)
pstate: 40000005 (nZcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : divider_recalc_rate+0x48/0x70
...
------------[ cut here ]------------
Fixes: bb6d3fa98a41 ("clk: renesas: rcar-gen3: Switch to new SD clock handling")
Signed-off-by: Dirk Behme <[email protected]>
[wsa: extended the table to 5 entries, added comments, reword commit message a little]
Signed-off-by: Wolfram Sang <[email protected]>
Tested-by: Dirk Behme <[email protected]>
Reviewed-by: Geert Uytterhoeven <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Geert Uytterhoeven <[email protected]>
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Add CAN_1/2 support for i.MX8QM
Add M4_0, PI_0_PWM_0 and PI_0_I2C_0 for i.MX8QXP
Signed-off-by: Peng Fan <[email protected]>
Reviewed-by: Abel Vesa <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Abel Vesa <[email protected]>
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Not register clks that not owned to current partition.
CPU resources are specical resources, it is assigned in ATF, not
non-secure OS, but we still need to allow cpu freq, so return
true for non-secure OS for cpu resources.
Otherwise there will be error log if the resources are owned by current
partition:
[ 19.387291] cm40_i2c_div: failed to attached the power domain -2
[ 19.389305] cm40_lpuart_div: failed to attached the power domain -2
Signed-off-by: Peng Fan <[email protected]>
Reviewed-by: Abel Vesa <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Abel Vesa <[email protected]>
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MLB was de-featured, so drop MLB clk for i.MX8QM/QXP/DXL
Signed-off-by: Peng Fan <[email protected]>
Reviewed-by: Abel Vesa <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Abel Vesa <[email protected]>
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IMX_SC_R_VPU_UART and IMX_SC_R_VPUCORE was used in i.MX8QM A0 which
not for mass production. i.MX8QM B0 not have the two resources, so drop
it.
Signed-off-by: Peng Fan <[email protected]>
Reviewed-by: Abel Vesa <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Abel Vesa <[email protected]>
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The SC_PM_CLK_MISC0 clock is not available for the resources of ENET0/1 on
i.MX8DXL. Using the clock device compatible string to identify the platform
and only initialize the enetX_rgmii_rx_clk clock for non i.MX8DXL platform.
Signed-off-by: Shenwei Wang <[email protected]>
Reviewed-by: Ranjani Vaidyanathan <[email protected]>
Reviewed-by: Jacky Bai <[email protected]>
Acked-by: Jason Liu <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
Reviewed-by: Abel Vesa <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Abel Vesa <[email protected]>
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Move the elcdif_pll clock initialization before the lcd_clk, since the
elcdif_clk needs to be initialized ahead of lcd_clk, being its parent.
This change fixes issues with the LCD clocks during suspend/resume.
Fixes: babfaa9556d7 ("clk: imx: scu: add more scu clocks")
Suggested-by: Ranjani Vaidyanathan <[email protected]>
Acked-by: Laurentiu Palcu <[email protected]>
Signed-off-by: Robert Chiras <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
Reviewed-by: Abel Vesa <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Abel Vesa <[email protected]>
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Entries in imx8dxl_clk_scu_rsrc_table must be kept in the ascending
order, and IMX_SC_R_M4_0_UART < IMX_SC_R_M4_0_I2C.
Fixes: 036a4b4b4dfa ("clk: imx: Add imx8dxl clk driver")
Signed-off-by: Viorel Suman <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
Reviewed-by: Abel Vesa <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Abel Vesa <[email protected]>
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It is not a good idea to hardcode the LCDIF1 parent inside the
clock driver because some users may want to use a different clock
parent for LCDIF1. One of the reasons could be related to EMI tests.
Remove the harcoded LCDIF1 parent when the LCDIF1 parent is described
via devicetree.
Old dtb's that do not describe the LCDIF1 parent via devicetree will
use the same PLL5 clock as parent to keep the original behavior.
Signed-off-by: Fabio Estevam <[email protected]>
Reviewed-by: Abel Vesa <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Abel Vesa <[email protected]>
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Avoid memory leak in error handling path. It does not make
much sense for the SoC without clk driver, to make program behavior
correct, let's fix it.
Fixes: b80522040cd3 ("clk: imx: Add clock driver for i.MX8MQ CCM")
Reported-by: kernel test robot <[email protected]>
Reported-by: Dan Carpenter <[email protected]>
Closes: https://lore.kernel.org/r/[email protected]/
Signed-off-by: Peng Fan <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Abel Vesa <[email protected]>
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The return value of clk_imx_acm_detach_pm_domains() is never used.
Simplify the code and turn it into a void function.
Reviewed-by: Peng Fan <[email protected]>
Signed-off-by: Christophe JAILLET <[email protected]>
Signed-off-by: Abel Vesa <[email protected]>
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devm_clk_hw_register_mux_parent_data_table() error
If devm_clk_hw_register_mux_parent_data_table() fails, we branch to the
error handling path and imx_check_clk_hws() is never called.
Actually, imx_check_clk_hws() is a no-op because values in 'hws' are either
valid, either NULL.
Move the call to imx_check_clk_hws() in the error handling path, so that
an error is logged.
Fixes: d3a0946d7ac9 ("clk: imx: imx8: add audio clock mux driver")
Reviewed-by: Peng Fan <[email protected]>
Signed-off-by: Christophe JAILLET <[email protected]>
Signed-off-by: Abel Vesa <[email protected]>
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If an error occurs after a successful clk_imx_acm_attach_pm_domains() call,
it must be undone.
Add an explicit error handling path, re-order the code and add the missing
clk_imx_acm_detach_pm_domains() call.
Fixes: d3a0946d7ac9 ("clk: imx: imx8: add audio clock mux driver")
Reviewed-by: Peng Fan <[email protected]>
Signed-off-by: Christophe JAILLET <[email protected]>
Signed-off-by: Abel Vesa <[email protected]>
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devm_clk_hw_register_mux_parent_data_table() fails
If a devm_clk_hw_register_mux_parent_data_table() call fails, it is likely
that the probe should fail with an error code.
Set 'ret' before leaving the function.
Fixes: d3a0946d7ac9 ("clk: imx: imx8: add audio clock mux driver")
Reviewed-by: Peng Fan <[email protected]>
Signed-off-by: Christophe JAILLET <[email protected]>
Signed-off-by: Abel Vesa <[email protected]>
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If a dev_pm_domain_attach_by_id() call fails, previously allocated
resources need to be released.
Fixes: d3a0946d7ac9 ("clk: imx: imx8: add audio clock mux driver")
Reviewed-by: Peng Fan <[email protected]>
Signed-off-by: Christophe JAILLET <[email protected]>
Signed-off-by: Abel Vesa <[email protected]>
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If the i.MX8QXP clock provider is built-in but the MXC_CLK is
built as module, build fails:
aarch64-linux-ld: drivers/clk/imx/clk-imx8-acm.o: in function `imx8_acm_clk_probe':
clk-imx8-acm.c:(.text+0x3d0): undefined reference to `imx_check_clk_hws'
Fix that by selecting MXC_CLK in case of CLK_IMX8QXP.
Fixes: c2cccb6d0b33 ("clk: imx: add imx8qxp clk driver")
Closes: https://lore.kernel.org/all/[email protected]/
Reported-by: Randy Dunlap <[email protected]>
Reviewed-by: Peng Fan <[email protected]>
Acked-by: Randy Dunlap <[email protected]>
Tested-by: Randy Dunlap <[email protected]>
Signed-off-by: Abel Vesa <[email protected]>
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Add the peripherals clock controller driver in the S4 SoC family.
[jbrunet: remove extra new line at end of s4-peripherals.h]
Signed-off-by: Yu Tu <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jerome Brunet <[email protected]>
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Add the S4 PLL clock controller driver in the S4 SoC family.
Signed-off-by: Yu Tu <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jerome Brunet <[email protected]>
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Make r8a7795_core_clks and r8a7795_mod_clks arrays const and align them
with the other clock tables in other *cpg-mssr.c . No functional change.
Signed-off-by: Marek Vasut <[email protected]>
Reviewed-by: Geert Uytterhoeven <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Geert Uytterhoeven <[email protected]>
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Set .flags = CLK_OPS_PARENT_ENABLE to fix "gcc_sdcc2_apps_clk_src: rcg
didn't update its configuration" error.
Fixes: 2a1d7eb854bb ("clk: qcom: gcc: Add global clock controller driver for SM8150")
Tested-by: Arseniy Velikanov <[email protected]>
Signed-off-by: Danila Tikhonov <[email protected]>
Reviewed-by: Konrad Dybcio <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Bjorn Andersson <[email protected]>
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Merge the SM4450 RPMHCC and GCC through a topic branch, to allow reuse
of the defines from the DeviceTree binding in the DeviceTree source.
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Add Global Clock Controller (GCC) support for SM4450 platform.
Signed-off-by: Ajit Pandey <[email protected]>
Reviewed-by: Dmitry Baryshkov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Bjorn Andersson <[email protected]>
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Add support for RPMH clocks for SM4450 platform.
Signed-off-by: Ajit Pandey <[email protected]>
Reviewed-by: Dmitry Baryshkov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Bjorn Andersson <[email protected]>
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According to a commit in the 3.4 vendor kernel sources[0] the
ocmemcx_ahb_clk clock "is controlled by RPM and should not be touched by
APPS.".
[0] https://git.codelinaro.org/clo/la/kernel/msm/-/commit/37df5f2d91b4d5768b37fcaacaeea958dd683ebc
And indeed, when using MDSS+GPU+OCMEM on MSM8226 and not using
clk_ignore_unused, when Linux tries to disable the clock the device
crashes and reboots.
And since there's also no evidence of this clock in msm8974 vendor
kernel sources, remove the clock for msm8226 and msm8974.
Fixes: d8b212014e69 ("clk: qcom: Add support for MSM8974's multimedia clock controller (MMCC)")
Signed-off-by: Luca Weiss <[email protected]>
Reviewed-by: Konrad Dybcio <[email protected]>
Link: https://lore.kernel.org/r/20230902-msm8226-ocmemcx_ahb_clk-remove-v1-1-8124dbde83b9@z3ntu.xyz
Signed-off-by: Bjorn Andersson <[email protected]>
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Add support for .is_enabled atomic clk_ops using the related SCMI clock
operation in atomic mode, if available.
Note that the .is_enabled callback will be supported by this SCMI clock
driver only if the configured underlying SCMI transport does support atomic
operations.
CC: Michael Turquette <[email protected]>
CC: Stephen Boyd <[email protected]>
CC: [email protected]
Signed-off-by: Cristian Marussi <[email protected]>
Acked-by: Stephen Boyd <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Sudeep Holla <[email protected]>
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SCMI clock enable/disable operations come in 2 different flavours which
simply just differ in how the underlying SCMI transactions is carried on:
atomic or not.
Currently we expose such SCMI operations through 2 distinctly named
wrappers, that, in turn, are wrapped into another couple of similarly and
distinctly named callbacks inside SCMI clock driver user.
Reduce the churn of duplicated wrappers by adding a param to SCMI clock
enable/disable operations to ask for atomic operation while removing the
_atomic version of such operations.
No functional change.
CC: Michael Turquette <[email protected]>
CC: Stephen Boyd <[email protected]>
CC: [email protected]
Signed-off-by: Cristian Marussi <[email protected]>
Acked-by: Stephen Boyd <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Sudeep Holla <[email protected]>
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The SMMU GDSC doesn't have to be ALWAYS-ON and shouldn't feature the
HW_CTRL flag (it's separate from hw_ctrl_addr). In addition to that,
it should feature a cxc entry for bimc_smmu_axi_clk and be marked as
votable.
Fix all of these issues.
Fixes: d14b15b5931c ("clk: qcom: Add MSM8998 Multimedia Clock Controller (MMCC) driver")
Signed-off-by: Konrad Dybcio <[email protected]>
Reviewed-by: Jeffrey Hugo <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Bjorn Andersson <[email protected]>
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Some branch clocks are governed externally and we're only supposed to
send a request concerning their shutdown, not actually ensure it happens.
Use the BRANCH_HALT_SKIP define to skip checking the halt bit.
Fixes: d14b15b5931c ("clk: qcom: Add MSM8998 Multimedia Clock Controller (MMCC) driver")
Reviewed-by: Jeffrey Hugo <[email protected]>
Signed-off-by: Konrad Dybcio <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Bjorn Andersson <[email protected]>
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If the parent clock rate is greater than unsigned long max/2 then
integer overflow happens when calculating the clock rate on 32-bit systems.
As RCG2 uses half integer dividers, the clock rate is first being
multiplied by 2 which will overflow the unsigned long max value.
Hence, replace the common pattern of doing 64-bit multiplication
and then a do_div() call with simpler mult_frac call.
Fixes: bcd61c0f535a ("clk: qcom: Add support for root clock generators (RCGs)")
Signed-off-by: Devi Priya <[email protected]>
Reviewed-by: Marijn Suijten <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
[bjorn: Also drop unnecessary {} around single statements]
Signed-off-by: Bjorn Andersson <[email protected]>
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The GCC driver contains clocks that are owned (meaning configured and
scaled) by the RPM core.
Remove them from Linux to stop interjecting the RPM's logic.
Fixes: b1e010c0730a ("clk: qcom: Add MSM8996 Global Clock Control (GCC) driver")
Signed-off-by: Konrad Dybcio <[email protected]>
Reviewed-by: Dmitry Baryshkov <[email protected]>
Tested-by: Dmitry Baryshkov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Bjorn Andersson <[email protected]>
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IPQ5332's GPLL0's nominal/turbo frequency is 800MHz.
This must not be scaled based on the requirement of
dependent clocks. Hence remove the CLK_SET_RATE_PARENT
flag.
Fixes: 3d89d52970fd ("clk: qcom: add Global Clock controller (GCC) driver for IPQ5332 SoC")
Signed-off-by: Varadarajan Narayanan <[email protected]>
Reviewed-by: Kathiravan T <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Bjorn Andersson <[email protected]>
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Merge the SM8550 camera clock controller patches through a topic branch,
to make them available for the DeviceTree source as well.
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Add support for camera qdss, sleep and xo clocks.
Co-developed-by: Taniya Das <[email protected]>
Signed-off-by: Taniya Das <[email protected]>
Signed-off-by: Jagadeesh Kona <[email protected]>
Reviewed-by: Dmitry Baryshkov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Bjorn Andersson <[email protected]>
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Add support for the camera clock controller for camera clients to be
able to request for camcc clocks on SM8550 platform.
Co-developed-by: Taniya Das <[email protected]>
Signed-off-by: Taniya Das <[email protected]>
Signed-off-by: Jagadeesh Kona <[email protected]>
Reviewed-by: Konrad Dybcio <[email protected]>
Reviewed-by: Dmitry Baryshkov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Bjorn Andersson <[email protected]>
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Lucid ole pll has as extra RINGOSC_CAL_L field in L register in
addition to the fields that are part of lucid evo pll, hence add
support for lucid ole pll configure function to configure the ole plls.
Signed-off-by: Jagadeesh Kona <[email protected]>
Reviewed-by: Dmitry Baryshkov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Bjorn Andersson <[email protected]>
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Clarify the content of the r9a06g032_clkdesc structure by naming the
remaining anonymous structures defined inside. Renaming each field and
updating the doc then becomes necessary in order to avoid name
duplications and kdoc warnings.
Signed-off-by: Ralph Siemsen <[email protected]>
Reviewed-by: Miquel Raynal <[email protected]>
Reviewed-by: Geert Uytterhoeven <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Geert Uytterhoeven <[email protected]>
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Mention the 'dual' structure in the kdoc. This fixes the following
W=1 warning during build:
> drivers/clk/renesas/r9a06g032-clocks.c:119: warning: Function parameter or member 'dual' not described in 'r9a06g032_clkdesc'
Reported-by: kernel test robot <[email protected]>
Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/
Signed-off-by: Ralph Siemsen <[email protected]>
Reviewed-by: Miquel Raynal <[email protected]>
Reviewed-by: Geert Uytterhoeven <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Geert Uytterhoeven <[email protected]>
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flag and mux_flags are intended to keep bit masks. Use u32 type for it.
Signed-off-by: Claudiu Beznea <[email protected]>
Reviewed-by: Geert Uytterhoeven <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Geert Uytterhoeven <[email protected]>
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Use FIELD_GET() for PLL register fields. This is its purpose.
Signed-off-by: Claudiu Beznea <[email protected]>
Reviewed-by: Geert Uytterhoeven <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Geert Uytterhoeven <[email protected]>
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The bitmask << 16 is anyway set on both branches of if thus move it
before the if and set the lower bits of registers only in case clock is
enabled.
Signed-off-by: Claudiu Beznea <[email protected]>
Reviewed-by: Geert Uytterhoeven <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Geert Uytterhoeven <[email protected]>
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core->name already contains the clock name thus, there is no
need to check the GET_SHIFT(core->conf) to decide on it.
Signed-off-by: Claudiu Beznea <[email protected]>
Reviewed-by: Geert Uytterhoeven <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Geert Uytterhoeven <[email protected]>
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Add PLL configuration for MSM8976 SoC, this SoC offers 3 HFPLL.
Small cluster offers two presets for 652-902Mhz range and 902Mhz-1.47Ghz.
For simplicity only add second range as smaller frequencies can be obtained
via apcs divider or safe parent this also saves us
a hassle of reconfiguring VCO bit and config_val.
A72 and CCI cluster only use single frequency range with their
outputs/post_dividers/vco_bits being static.
Signed-off-by: Adam Skladowski <[email protected]>
Reviewed-by: Konrad Dybcio <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Bjorn Andersson <[email protected]>
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HFPLL driver can be used to drive PLLs also on different SoCs like MSM8976
On MSM8976 each PLL gets it own different configuration,
add matching pdata to driver to support multiple configurations.
Signed-off-by: Adam Skladowski <[email protected]>
Reviewed-by: Konrad Dybcio <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Bjorn Andersson <[email protected]>
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Add support for pre-configuring default frequency multiplier,
this appears to be required on some platforms like MSM8976.
Without configuring L_VAL device reboots when trying to bring PLL up.
Signed-off-by: Adam Skladowski <[email protected]>
Reviewed-by: Konrad Dybcio <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Bjorn Andersson <[email protected]>
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tegra-bpmp clocks driver makes implicit conversion of signed error
code to unsigned value in recalc_rate operation. The behavior for
recalc_rate, according to it's specification, should be that "If the
driver cannot figure out a rate for this clock, it must return 0."
Fixes: ca6f2796eef7 ("clk: tegra: Add BPMP clock driver")
Signed-off-by: Timo Alho <[email protected]>
Signed-off-by: Mikko Perttunen <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Stephen Boyd <[email protected]>
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Rework the write operation such that the Byte Count register is written with
a single raw i2c write outside of regmap using transfer which does specify
the number of bytes to be transfered, one in this case, and which makes the
expected subsequent write transfer look like address+register+data, and then
make use of this method. Without this change, the Byte Count register write
in probe() would succeed as it would provide the byte count as part of its
write payload, but any subsequent writes would fail due to this Byte Count
register programming. Such failing writes happens e.g. during resume, when
restoring the regmap content.
Fixes: edc12763a3a2 ("clk: si521xx: Clock driver for Skyworks Si521xx I2C PCIe clock generators")
Signed-off-by: Marek Vasut <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Stephen Boyd <[email protected]>
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