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11,732 commits

Author SHA1 Message Date
Marek Vasut
da86ca15d7 clk: rs9: Reserve 8 struct clk_hw slots for for 9FGV0841
[ Upstream commit 5ec820fc28 ]

The 9FGV0841 has 8 outputs and registers 8 struct clk_hw, make sure
there are 8 slots for those newly registered clk_hw pointers, else
there is going to be out of bounds write when pointers 4..7 are set
into struct rs9_driver_data .clk_dif[4..7] field.

Since there are other structure members past this struct clk_hw
pointer array, writing to .clk_dif[4..7] fields corrupts both
the struct rs9_driver_data content and data around it, sometimes
without crashing the kernel. However, the kernel does surely
crash when the driver is unbound or during suspend.

Fix this, increase the struct clk_hw pointer array size to the
maximum output count of 9FGV0841, which is the biggest chip that
is supported by this driver.

Cc: stable@vger.kernel.org
Fixes: f0e5e18002 ("clk: rs9: Add support for 9FGV0841")
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reported-by: Geert Uytterhoeven <geert+renesas@glider.be>
Closes: https://lore.kernel.org/CAMuHMdVyQpOBT+Ho+mXY07fndFN9bKJdaaWGn91WOFnnYErLyg@mail.gmail.com
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-03-04 07:21:21 -05:00
Haoxiang Li
b7bbd20d55 clk: tegra: tegra124-emc: Fix potential memory leak in tegra124_clk_register_emc()
[ Upstream commit fce0d0bd9c ]

If clk_register() fails, call kfree to release "tegra".

Fixes: 2db04f16b5 ("clk: tegra: Add EMC clock driver")
Cc: stable@vger.kernel.org
Signed-off-by: Haoxiang Li <lihaoxiang@isrc.iscas.ac.cn>
Reviewed-by: Brian Masney <bmasney@redhat.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-03-04 07:21:07 -05:00
Janne Grunau
9785b31beb clk: clk-apple-nco: Add "apple,t8103-nco" compatible
[ Upstream commit ef9b3b4dbe ]

After discussion with the devicetree maintainers we agreed to not extend
lists with the generic compatible "apple,nco" anymore [1]. Use
"apple,t8103-nco" as base compatible as it is the SoC the driver and
bindings were written for.

[1]: https://lore.kernel.org/asahi/12ab93b7-1fc2-4ce0-926e-c8141cfe81bf@kernel.org/

Fixes: 6641057d5d ("clk: clk-apple-nco: Add driver for Apple NCO")
Cc: stable@vger.kernel.org
Acked-by: Stephen Boyd <sboyd@kernel.org>
Reviewed-by: Neal Gompa <neal@gompa.dev>
Signed-off-by: Janne Grunau <j@jannau.net>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-03-04 07:21:05 -05:00
Chris Brandt
428093cfa8 clk: renesas: rzg2l: Select correct div round macro
[ Upstream commit f9451374dc ]

Variable foutvco_rate is an unsigned long, not an unsigned long long.

Cc: stable@kernel.org
Reported-by: Geert Uytterhoeven <geert+renesas@glider.be>
Closes: https://lore.kernel.org/CAMuHMdVf7dSeqAhtyxDCFuCheQRzwS-8996Rr2Ntui21uiBgdA@mail.gmail.com
Fixes: dabf72b85f ("clk: renesas: rzg2l: Fix FOUTPOSTDIV clk")
Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/20251114194529.3304361-1-chris.brandt@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-03-04 07:20:53 -05:00
Chris Brandt
01dfc5abfa clk: renesas: rzg2l: Fix intin variable size
[ Upstream commit a00655d98c ]

INTIN is a 12-bit register value, so u8 is too small.

Fixes: 1561380ee7 ("clk: renesas: rzg2l: Add FOUTPOSTDIV clk support")
Cc: stable@vger.kernel.org
Reported-by: Hugo Villeneuve <hugo@hugovil.com>
Closes: https://lore.kernel.org/20251107113058.f334957151d1a8dd94dd740b@hugovil.com
Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/20251114193711.3277912-1-chris.brandt@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-03-04 07:20:53 -05:00
Brian Masney
534dbb6422 clk: microchip: core: correct return value on *_get_parent()
[ Upstream commit 5df96d141c ]

roclk_get_parent() and sclk_get_parent() has the possibility of
returning -EINVAL, however the framework expects this call to always
succeed since the return value is unsigned.

If there is no parent map defined, then the current value programmed in
the hardware is used. Let's use that same value in the case where
-EINVAL is currently returned.

This index is only used by clk_core_get_parent_by_index(), and it
validates that it doesn't overflow the number of available parents.

Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/r/202512050233.R9hAWsJN-lkp@intel.com/
Signed-off-by: Brian Masney <bmasney@redhat.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Link: https://lore.kernel.org/r/20251205-clk-microchip-fixes-v3-2-a02190705e47@redhat.com
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-03-04 07:20:31 -05:00
Biju Das
8d35f60ff0 clk: renesas: rzg2l: Deassert reset on assert timeout
[ Upstream commit 0b0201f259 ]

If the assert() fails due to timeout error, set the reset register bit
back to deasserted state. This change is needed especially for handling
assert error in suspend() callback that expect the device to be in
operational state in case of failure.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/20260108123433.104464-2-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-03-04 07:20:31 -05:00
Chuan Liu
f990244e0f clk: amlogic: remove potentially unsafe flags from S4 video clocks
[ Upstream commit 4aca7e9202 ]

The video clocks enci, encp, vdac and hdmitx share the same clock
source. Adding CLK_SET_RATE_PARENT to the mux may unintentionally change
the shared parent clock, which could affect other video clocks.

Signed-off-by: Chuan Liu <chuan.liu@amlogic.com>
Link: https://lore.kernel.org/r/20250919-add_video_clk-v6-3-fe223161fb3f@amlogic.com
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-03-04 07:20:30 -05:00
Krzysztof Kozlowski
52e4ac51e3 clk: zynqmp: pll: Fix zynqmp_clk_divider_determine_rate kerneldoc
[ Upstream commit 750e0e0a16 ]

After renaming round_rate->determine, kerneldoc does not match anymore,
causing W=1 warnings:

  pll.c:102 function parameter 'req' not described in 'zynqmp_pll_determine_rate'
  pll.c:102 expecting prototype for zynqmp_pll_round_rate(). Prototype was for zynqmp_pll_determine_rate() instead

Fixes: 193650c7a8 ("clk: zynqmp: pll: convert from round_rate() to determine_rate()")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Reviewed-by: Brian Masney <bmasney@redhat.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-02-26 14:59:32 -08:00
Krzysztof Kozlowski
d53b019a60 clk: zynqmp: divider: Fix zynqmp_clk_divider_determine_rate kerneldoc
[ Upstream commit 1b87738649 ]

After renaming round_rate->determine, kerneldoc does not match anymore,
causing W=1 warnings:

  Warning: drivers/clk/zynqmp/divider.c:122 function parameter 'req' not described in 'zynqmp_clk_divider_determine_rate'
  Warning: drivers/clk/zynqmp/divider.c:122 expecting prototype for zynqmp_clk_divider_round_rate(). Prototype was for zynqmp_clk_divider_determine_rate() instead

Fixes: 0f9cf96a01 ("clk: zynqmp: divider: convert from round_rate() to determine_rate()")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Reviewed-by: Brian Masney <bmasney@redhat.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-02-26 14:59:32 -08:00
Haotian Zhang
71e5335fce clk: mediatek: Fix error handling in runtime PM setup
[ Upstream commit aa2ad19210 ]

devm_pm_runtime_enable() can fail due to memory allocation. The current
code ignores its return value, and when pm_runtime_resume_and_get() fails,
it returns directly without unmapping the shared_io region.

Add error handling for devm_pm_runtime_enable(). Reorder cleanup labels
to properly unmap shared_io on pm_runtime_resume_and_get() failure.

Fixes: 2f7b1d8b55 ("clk: mediatek: Do a runtime PM get on controllers during probe")
Signed-off-by: Haotian Zhang <vulab@iscas.ac.cn>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-02-26 14:59:32 -08:00
Nicolas Frattaroli
6e5379c3b5 clk: mediatek: Add mfg_eb as parent to mt8196 mfgpll clocks
[ Upstream commit 19024c9980 ]

All the MFGPLL require MFG_EB to be on for any operation on them, and
they only tick when MFG_EB is on as well, therefore making this a
parent-child relationship.

This dependency wasn't clear during the initial upstreaming of these
clock controllers, as it only made itself known when I could observe
the effects of the clock by bringing up a different piece of hardware.

Add a new PLL_PARENT_EN flag to mediatek's clk-pll.h, and check for it
when initialising the pll to then translate it into the actual
CLK_OPS_PARENT_ENABLE flag.

Then add the mfg_eb parent to the mfgpll clocks, and set the new
PLL_PARENT_EN flag.

Fixes: 03dc02f8c7 ("clk: mediatek: Add MT8196 mfg clock support")
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-02-26 14:59:32 -08:00
Sjoerd Simons
1debd9ba7e clk: mediatek: Drop __initconst from gates
[ Upstream commit 871afb43e4 ]

Since commit 8ceff24a75 ("clk: mediatek: clk-gate: Refactor
mtk_clk_register_gate to use mtk_gate struct") the mtk_gate structs
are no longer just used for initialization/registration, but also at
runtime. So drop __initconst annotations.

Fixes: 8ceff24a75 ("clk: mediatek: clk-gate: Refactor mtk_clk_register_gate to use mtk_gate struct")
Signed-off-by: Sjoerd Simons <sjoerd@collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Laura Nao <laura.nao@collabora.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-02-26 14:59:32 -08:00
Brian Masney
053490ddac clk: zynqmp: divider: convert from divider_round_rate() to divider_determine_rate()
[ Upstream commit 30a807808c ]

The divider_round_rate() function is now deprecated, so let's migrate
to divider_determine_rate() instead so that this deprecated API can be
removed.

Note that when the main function itself was migrated to use
determine_rate, this was mistakenly converted to:

    req->rate = divider_round_rate(...)

This is invalid in the case when an error occurs since it can set the
rate to a negative value.

Fixes: 0f9cf96a01 ("clk: zynqmp: divider: convert from round_rate() to determine_rate()")
Signed-off-by: Brian Masney <bmasney@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-02-26 14:59:31 -08:00
Brian Masney
df502559b1 clk: x86: cgu: convert from divider_round_rate() to divider_determine_rate()
[ Upstream commit bb1b0e63db ]

The divider_round_rate() function is now deprecated, so let's migrate
to divider_determine_rate() instead so that this deprecated API can be
removed.

Note that when the main function itself was migrated to use
determine_rate, this was mistakenly converted to:

    req->rate = divider_round_rate(...)

This is invalid in the case when an error occurs since it can set the
rate to a negative value.

Fixes: f7a6bed91a ("clk: x86: cgu: convert from round_rate() to determine_rate()")
Signed-off-by: Brian Masney <bmasney@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-02-26 14:59:31 -08:00
Brian Masney
ccab4798a6 clk: versaclock3: convert from divider_round_rate() to divider_determine_rate()
[ Upstream commit 56c1cfb488 ]

The divider_round_rate() function is now deprecated, so let's migrate
to divider_determine_rate() instead so that this deprecated API can be
removed.

Note that when the main function itself was migrated to use
determine_rate, this was mistakenly converted to:

    req->rate = divider_round_rate(...)

This is invalid in the case when an error occurs since it can set the
rate to a negative value.

Fixes: 9e3372b2eb ("clk: versaclock3: convert from round_rate() to determine_rate()")
Signed-off-by: Brian Masney <bmasney@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-02-26 14:59:31 -08:00
Brian Masney
c632744ff0 clk: stm32: stm32-core: convert from divider_round_rate_parent() to divider_determine_rate()
[ Upstream commit 2532795a6d ]

The divider_round_rate_parent() function is now deprecated, so let's
migrate to divider_determine_rate() instead so that this deprecated API
can be removed.

Note that when the main function itself was migrated to use
determine_rate, this was mistakenly converted to:

    req->rate = divider_round_rate(...)

This is invalid in the case when an error occurs since it can set the
rate to a negative value.

Fixes: cd1cb38836 ("clk: stm32: stm32-core: convert from round_rate() to determine_rate()")
Signed-off-by: Brian Masney <bmasney@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-02-26 14:59:31 -08:00
Brian Masney
29781f258a clk: stm32: stm32-core: convert from divider_ro_round_rate() to divider_ro_determine_rate()
[ Upstream commit 6587c9dacc ]

The divider_ro_round_rate() function is now deprecated, so let's migrate
to divider_ro_determine_rate() instead so that this deprecated API can
be removed.

Note that when the main function itself was migrated to use
determine_rate, this was mistakenly converted to:

    req->rate = divider_round_rate(...)

This is invalid in the case when an error occurs since it can set the
rate to a negative value.

Fixes: cd1cb38836 ("clk: stm32: stm32-core: convert from round_rate() to determine_rate()")
Signed-off-by: Brian Masney <bmasney@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-02-26 14:59:31 -08:00
Brian Masney
141fd6e372 clk: sprd: div: convert from divider_round_rate() to divider_determine_rate()
[ Upstream commit f78fb94229 ]

The divider_round_rate() function is now deprecated, so let's migrate
to divider_determine_rate() instead so that this deprecated API can be
removed.

Note that when the main function itself was migrated to use
determine_rate, this was mistakenly converted to:

    req->rate = divider_round_rate(...)

This is invalid in the case when an error occurs since it can set the
rate to a negative value.

Fixes: deb4740a5f ("clk: sprd: div: convert from round_rate() to determine_rate()")
Signed-off-by: Brian Masney <bmasney@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-02-26 14:59:31 -08:00
Brian Masney
aab1749732 clk: sophgo: sg2042-clkgen: convert from divider_round_rate() to divider_determine_rate()
[ Upstream commit 77b04dc196 ]

The divider_round_rate() function is now deprecated, so let's migrate
to divider_determine_rate() instead so that this deprecated API can be
removed.

Note that when the main function itself was migrated to use
determine_rate, this was mistakenly converted to:

    req->rate = divider_round_rate(...)

This is invalid in the case when an error occurs since it can set the
rate to a negative value.

Note that this commit also removes a debugging message that's not really
needed.

Fixes: 9a3b699361 ("clk: sophgo: sg2042-clkgen: convert from round_rate() to determine_rate()")
Tested-by: Chen Wang <unicorn_wang@outlook.com>
Reviewed-by: Chen Wang <unicorn_wang@outlook.com>
Signed-off-by: Brian Masney <bmasney@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-02-26 14:59:31 -08:00
Brian Masney
73fbacf475 clk: nxp: lpc32xx: convert from divider_round_rate() to divider_determine_rate()
[ Upstream commit af943663cc ]

The divider_round_rate() function is now deprecated, so let's migrate
to divider_determine_rate() instead so that this deprecated API can be
removed.

Note that when the main function itself was migrated to use
determine_rate, this was mistakenly converted to:

    req->rate = divider_round_rate(...)

This is invalid in the case when an error occurs since it can set the
rate to a negative value.

Fixes: 0879768df2 ("clk: nxp: lpc32xx: convert from round_rate() to determine_rate()")
Tested-by: Vladimir Zapolskiy <vz@mleia.com>
Reviewed-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Brian Masney <bmasney@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-02-26 14:59:31 -08:00
Brian Masney
7f487ccf58 clk: nuvoton: ma35d1-divider: convert from divider_round_rate() to divider_determine_rate()
[ Upstream commit 9329d784ca ]

The divider_round_rate() function is now deprecated, so let's migrate
to divider_determine_rate() instead so that this deprecated API can be
removed.

Note that when the main function itself was migrated to use
determine_rate, this was mistakenly converted to:

    req->rate = divider_round_rate(...)

This is invalid in the case when an error occurs since it can set the
rate to a negative value.

Fixes: 215f8aa095 ("clk: nuvoton: ma35d1-divider: convert from round_rate() to determine_rate()")
Signed-off-by: Brian Masney <bmasney@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-02-26 14:59:31 -08:00
Brian Masney
199625f973 clk: milbeaut: convert from divider_round_rate() to divider_determine_rate()
[ Upstream commit 865e63b038 ]

The divider_round_rate() function is now deprecated, so let's migrate
to divider_determine_rate() instead so that this deprecated API can be
removed.

Note that when the main function itself was migrated to use
determine_rate, this was mistakenly converted to:

    req->rate = divider_round_rate(...)

This is invalid in the case when an error occurs since it can set the
rate to a negative value.

Fixes: 7b45988fcf ("clk: milbeaut: convert from round_rate() to determine_rate()")
Signed-off-by: Brian Masney <bmasney@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-02-26 14:59:31 -08:00
Brian Masney
c05f9dfa69 clk: loongson1: convert from divider_round_rate() to divider_determine_rate()
[ Upstream commit 11d3c676e7 ]

The divider_round_rate() function is now deprecated, so let's migrate
to divider_determine_rate() instead so that this deprecated API can be
removed.

Note that when the main function itself was migrated to use
determine_rate, this was mistakenly converted to:

    req->rate = divider_round_rate(...)

This is invalid in the case when an error occurs since it can set the
rate to a negative value.

Fixes: bb40a2ef4f ("clk: loongson1: convert from round_rate() to determine_rate()")
Reviewed-by: Keguang Zhang <keguang.zhang@gmail.com>
Tested-by: Keguang Zhang <keguang.zhang@gmail.com> # on LS1B & LS1C
Signed-off-by: Brian Masney <bmasney@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-02-26 14:59:31 -08:00
Brian Masney
0a5c1dff51 clk: hisilicon: clkdivider-hi6220: convert from divider_round_rate() to divider_determine_rate()
[ Upstream commit e3a5249c14 ]

The divider_round_rate() function is now deprecated, so let's migrate
to divider_determine_rate() instead so that this deprecated API can be
removed.

Note that when the main function itself was migrated to use
determine_rate, this was mistakenly converted to:

    req->rate = divider_round_rate(...)

This is invalid in the case when an error occurs since it can set the
rate to a negative value.

Fixes: 619a6210f3 ("clk: hisilicon: clkdivider-hi6220: convert from round_rate() to determine_rate()")
Signed-off-by: Brian Masney <bmasney@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-02-26 14:59:31 -08:00
Brian Masney
aa1ed67e58 clk: bm1880: convert from divider_round_rate() to divider_determine_rate()
[ Upstream commit 463b97bef0 ]

The divider_round_rate() function is now deprecated, so let's migrate
to divider_determine_rate() instead so that this deprecated API can be
removed.

Note that when the main function itself was migrated to use
determine_rate, this was mistakenly converted to:

    req->rate = divider_round_rate(...)

This is invalid in the case when an error occurs since it can set the
rate to a negative value.

Fixes: 64613d7fb4 ("clk: bm1880: convert from round_rate() to determine_rate()")
Acked-by: Manivannan Sadhasivam <mani@kernel.org>
Signed-off-by: Brian Masney <bmasney@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-02-26 14:59:31 -08:00
Brian Masney
d4274c2df1 clk: actions: owl-divider: convert from divider_round_rate() to divider_determine_rate()
[ Upstream commit 3ff3360440 ]

The divider_round_rate() function is now deprecated, so let's migrate
to divider_determine_rate() instead so that this deprecated API can be
removed. Additionally, owl_divider_helper_round_rate() is no longer used,
so let's drop that from the header file as well.

Note that when the main function itself was migrated to use
determine_rate, this was mistakenly converted to:

    req->rate = divider_round_rate(...)

This is invalid in the case when an error occurs since it can set the
rate to a negative value.

Fixes: 1b04e12a8b ("clk: actions: owl-divider: convert from round_rate() to determine_rate()")
Acked-by: Manivannan Sadhasivam <mani@kernel.org>
Signed-off-by: Brian Masney <bmasney@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-02-26 14:59:30 -08:00
Brian Masney
bfcc7cc9c3 clk: actions: owl-composite: convert from owl_divider_helper_round_rate() to divider_determine_rate()
[ Upstream commit d0b7c5bf6c ]

owl_divider_helper_round_rate() is just a wrapper for
divider_round_rate(), which is deprecated. Let's migrate to
divider_determine_rate() instead so that this deprecated API can be
removed.

Acked-by: Manivannan Sadhasivam <mani@kernel.org>
Signed-off-by: Brian Masney <bmasney@redhat.com>
Stable-dep-of: 3ff3360440 ("clk: actions: owl-divider: convert from divider_round_rate() to divider_determine_rate()")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-02-26 14:59:30 -08:00
Dmitry Baryshkov
aed53da569 clk: qcom: gfx3d: add parent to parent request map
[ Upstream commit 2583cb925c ]

After commit d228ece363 ("clk: divider: remove round_rate() in favor
of determine_rate()") determining GFX3D clock rate crashes, because the
passed parent map doesn't provide the expected best_parent_hw clock
(with the roundd_rate path before the offending commit the
best_parent_hw was ignored).

Set the field in parent_req in addition to setting it in the req,
fixing the crash.

 clk_hw_round_rate (drivers/clk/clk.c:1764) (P)
 clk_divider_bestdiv (drivers/clk/clk-divider.c:336)
 divider_determine_rate (drivers/clk/clk-divider.c:358)
 clk_alpha_pll_postdiv_determine_rate (drivers/clk/qcom/clk-alpha-pll.c:1275)
 clk_core_determine_round_nolock (drivers/clk/clk.c:1606)
 clk_core_round_rate_nolock (drivers/clk/clk.c:1701)
 __clk_determine_rate (drivers/clk/clk.c:1741)
 clk_gfx3d_determine_rate (drivers/clk/qcom/clk-rcg2.c:1268)
 clk_core_determine_round_nolock (drivers/clk/clk.c:1606)
 clk_core_round_rate_nolock (drivers/clk/clk.c:1701)
 clk_core_round_rate_nolock (drivers/clk/clk.c:1710)
 clk_round_rate (drivers/clk/clk.c:1804)
 dev_pm_opp_set_rate (drivers/opp/core.c:1440 (discriminator 1))
 msm_devfreq_target (drivers/gpu/drm/msm/msm_gpu_devfreq.c:51)
 devfreq_set_target (drivers/devfreq/devfreq.c:360)
 devfreq_update_target (drivers/devfreq/devfreq.c:426)
 devfreq_monitor (drivers/devfreq/devfreq.c:458)
 process_one_work (arch/arm64/include/asm/jump_label.h:36 include/trace/events/workqueue.h:110 kernel/workqueue.c:3284)
 worker_thread (kernel/workqueue.c:3356 (discriminator 2) kernel/workqueue.c:3443 (discriminator 2))
 kthread (kernel/kthread.c:467)
 ret_from_fork (arch/arm64/kernel/entry.S:861)

Fixes: 55213e1ace ("clk: qcom: Add gfx3d ping-pong PLL frequency switching")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Abel Vesa <abel.vesa@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Brian Masney <bmasney@redhat.com>
Link: https://lore.kernel.org/r/20260117-db820-fix-gfx3d-v1-1-0f8894d71d63@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-02-26 14:59:30 -08:00
David Heidelberg
e5001c92fc clk: qcom: dispcc-sm7150: Fix dispcc_mdss_pclk1_clk_src
[ Upstream commit fab13d738c ]

Set CLK_OPS_PARENT_ENABLE to ensure the parent gets prepared and enabled
when switching to it.

Fixes: e3c13e0caa ("clk: qcom: dispcc-sm7150: Fix dispcc_mdss_pclk0_clk_src")
Signed-off-by: David Heidelberg <david@ixit.cz>
Link: https://lore.kernel.org/r/20260117-sm7150-dispcc-fix-v1-1-2f39966bcad2@ixit.cz
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-02-26 14:59:30 -08:00
Petr Hodina
aeb606d885 clk: qcom: dispcc-sdm845: Enable parents for pixel clocks
[ Upstream commit a1d6349363 ]

Add CLK_OPS_PARENT_ENABLE to MDSS pixel clock sources to ensure parent
clocks are enabled during clock operations, preventing potential
stability issues during display configuration.

Fixes: 81351776c9 ("clk: qcom: Add display clock controller driver for SDM845")
Signed-off-by: Petr Hodina <petr.hodina@protonmail.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: David Heidelberg <david@ixit.cz>
Link: https://lore.kernel.org/r/20260107-stability-discussion-v2-1-ef7717b435ff@protonmail.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-02-26 14:59:30 -08:00
Brian Masney
2a01a346d2 clk: qcom: regmap-divider: convert from divider_round_rate() to divider_determine_rate()
[ Upstream commit d8300e6e07 ]

The divider_round_rate() function is now deprecated, so let's migrate
to divider_determine_rate() instead so that this deprecated API can be
removed.

Note that when the main function itself was migrated to use
determine_rate, this was mistakenly converted to:

    req->rate = divider_round_rate(...)

This is invalid in the case when an error occurs since it can set the
rate to a negative value.

Fixes: b6f90511c1 ("clk: qcom: regmap-divider: convert from round_rate() to determine_rate()")
Signed-off-by: Brian Masney <bmasney@redhat.com>
Reviewed-by: Abel Vesa <abel.vesa@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260108-clk-divider-round-rate-v1-16-535a3ed73bf3@redhat.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-02-26 14:59:30 -08:00
Brian Masney
22d691c02a clk: qcom: regmap-divider: convert from divider_ro_round_rate() to divider_ro_determine_rate()
[ Upstream commit 349f02c0f5 ]

The divider_ro_round_rate() function is now deprecated, so let's migrate
to divider_ro_determine_rate() instead so that this deprecated API can
be removed.

Note that when the main function itself was migrated to use
determine_rate, this was mistakenly converted to:

    req->rate = divider_round_rate(...)

This is invalid in the case when an error occurs since it can set the
rate to a negative value.

Fixes: b6f90511c1 ("clk: qcom: regmap-divider: convert from round_rate() to determine_rate()")
Signed-off-by: Brian Masney <bmasney@redhat.com>
Reviewed-by: Abel Vesa <abel.vesa@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260108-clk-divider-round-rate-v1-15-535a3ed73bf3@redhat.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-02-26 14:59:30 -08:00
Brian Masney
8ed504f525 clk: microchip: core: remove duplicate determine_rate on pic32_sclk_ops
[ Upstream commit d93faac66d ]

pic32_sclk_ops previously had a sclk_round_rate() member, and this was
recently converted over to sclk_determine_rate() with the help of a
Coccinelle semantic patch. pic32_sclk_ops now has two conflicting
determine_rate ops members.

Prior to the conversion, pic32_sclk_ops already had a determine_rate
member that points to __clk_mux_determine_rate(). When both the
round_rate() and determine_rate() ops are defined, the clk core only
uses the determine_rate() op. Let's go ahead and drop the recently
converted sclk_determine_rate() to match the previous functionality
prior to the conversion.

Fixes: e9f039c08c ("clk: microchip: core: convert from round_rate() to determine_rate()")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202511222115.uvHrP95A-lkp@intel.com/
Signed-off-by: Brian Masney <bmasney@redhat.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Link: https://lore.kernel.org/r/20251205-clk-microchip-fixes-v3-1-a02190705e47@redhat.com
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-02-26 14:59:30 -08:00
Miaoqian Lin
0533f1cdb3 clk: rockchip: Fix error pointer check after rockchip_clk_register_gate_link()
[ Upstream commit a8d722f039 ]

Replace NULL check with IS_ERR_OR_NULL() check after calling
rockchip_clk_register_gate_link() since this function
returns error pointers (ERR_PTR).

Fixes: c62fa612cf ("clk: rockchip: implement linked gate clock support")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://patch.msgid.link/20250805030358.3665878-1-linmq006@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-02-26 14:59:30 -08:00
Brian Masney
0b45cddb73 clk: qcom: alpha-pll: convert from divider_round_rate() to divider_determine_rate()
[ Upstream commit e1f08613e1 ]

The divider_round_rate() function is now deprecated, so let's migrate
to divider_determine_rate() instead so that this deprecated API can be
removed.

Note that when the main function itself was migrated to use
determine_rate, this was mistakenly converted to:

    req->rate = divider_round_rate(...)

This is invalid in the case when an error occurs since it can set the
rate to a negative value.

Fixes: 0e56e3369b ("clk: qcom: alpha-pll: convert from round_rate() to determine_rate()")
Signed-off-by: Brian Masney <bmasney@redhat.com>
Reviewed-by: Abel Vesa <abel.vesa@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260108-clk-divider-round-rate-v1-14-535a3ed73bf3@redhat.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-02-26 14:59:30 -08:00
George Moussalem
87fa98532b clk: qcom: gcc-ipq5018: flag sleep clock as critical
[ Upstream commit 04c4dc1f54 ]

The sleep clock never be disabled. To avoid the kernel trying to disable
it and keep it always on, flag it as critical.

Fixes: e3fdbef1ba ("clk: qcom: Add Global Clock controller (GCC) driver for IPQ5018")
Signed-off-by: George Moussalem <george.moussalem@outlook.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251128-ipq5018-sleep-clk-fix-v1-1-6f4b75ec336c@outlook.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-02-26 14:59:29 -08:00
Barnabás Czémán
b88e84b154 clk: qcom: gcc-msm8917: Remove ALWAYS_ON flag from cpp_gdsc
[ Upstream commit e4eb42f290 ]

cpp_gdsc should not be always on, ALWAYS_ON flag was set accidentally.

Fixes: 33cc27a47d ("clk: qcom: Add global clock controller driver for MSM8917")
Signed-off-by: Barnabás Czémán <barnabas.czeman@mainlining.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251117-fix-gdsc-cpp-msm8917-msm8953-v1-2-db33adcff28a@mainlining.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-02-26 14:59:29 -08:00
Barnabás Czémán
9dbd33356e clk: qcom: gcc-msm8953: Remove ALWAYS_ON flag from cpp_gdsc
[ Upstream commit 5f613e7034 ]

cpp_gdsc should not be always on, ALWAYS_ON flag was set accidentally.

Fixes: 9bb6cfc3c7 ("clk: qcom: Add Global Clock Controller driver for MSM8953")
Signed-off-by: Barnabás Czémán <barnabas.czeman@mainlining.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251117-fix-gdsc-cpp-msm8917-msm8953-v1-1-db33adcff28a@mainlining.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-02-26 14:59:29 -08:00
Jagadeesh Kona
a9d771adb4 clk: qcom: gcc-glymur: Update the SDCC RCGs to use shared_floor_ops
[ Upstream commit d5639a6d72 ]

Use shared_floor_ops for the SDCC RCGs so the RCG is safely parked
during disable and the new parent configuration is programmed in
hardware only when the new parent is enabled, avoiding cases where
the RCG configuration fails to update.

Fixes: efe504300a ("clk: qcom: gcc: Add support for Global Clock Controller")
Signed-off-by: Jagadeesh Kona <jagadeesh.kona@oss.qualcomm.com>
Reviewed-by: Imran Shaik <imran.shaik@oss.qualcomm.com>
Reviewed-by: Taniya Das <taniya.das@oss.qualcomm.com>
Reviewed-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Link: https://lore.kernel.org/r/20251127-sdcc_shared_floor_ops-v2-8-473afc86589c@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-02-26 14:59:29 -08:00
Jagadeesh Kona
8d7df9126d clk: qcom: gcc-qdu1000: Update the SDCC RCGs to use shared_floor_ops
[ Upstream commit 947c4b326c ]

Use shared_floor_ops for the SDCC RCGs so the RCG is safely parked
during disable and the new parent configuration is programmed in
hardware only when the new parent is enabled, avoiding cases where
the RCG configuration fails to update.

Fixes: baa3165800 ("clk: qcom: gcc-qdu1000: Update the SDCC clock RCG ops")
Signed-off-by: Jagadeesh Kona <jagadeesh.kona@oss.qualcomm.com>
Reviewed-by: Imran Shaik <imran.shaik@oss.qualcomm.com>
Reviewed-by: Taniya Das <taniya.das@oss.qualcomm.com>
Reviewed-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Link: https://lore.kernel.org/r/20251127-sdcc_shared_floor_ops-v2-7-473afc86589c@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-02-26 14:59:29 -08:00
Jagadeesh Kona
357bdc307c clk: qcom: gcc-x1e80100: Update the SDCC RCGs to use shared_floor_ops
[ Upstream commit a468047c4e ]

Use shared_floor_ops for the SDCC RCGs so the RCG is safely parked
during disable and the new parent configuration is programmed in
hardware only when the new parent is enabled, avoiding cases where
the RCG configuration fails to update.

Fixes: 161b7c401f ("clk: qcom: Add Global Clock controller (GCC) driver for X1E80100")
Signed-off-by: Jagadeesh Kona <jagadeesh.kona@oss.qualcomm.com>
Reviewed-by: Imran Shaik <imran.shaik@oss.qualcomm.com>
Reviewed-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Link: https://lore.kernel.org/r/20251127-sdcc_shared_floor_ops-v2-6-473afc86589c@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-02-26 14:59:29 -08:00
Jagadeesh Kona
16a21335ef clk: qcom: gcc-milos: Update the SDCC RCGs to use shared_floor_ops
[ Upstream commit 08da8d7dab ]

Use shared_floor_ops for the SDCC RCGs to avoid any overclocking
issues in SDCC usecases.

Fixes: 88174d5d94 ("clk: qcom: Add Global Clock controller (GCC) driver for Milos")
Reviewed-by: Taniya Das <taniya.das@oss.qualcomm.com>
Reviewed-by: Imran Shaik <imran.shaik@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Signed-off-by: Jagadeesh Kona <jagadeesh.kona@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251127-sdcc_shared_floor_ops-v2-5-473afc86589c@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-02-26 14:59:29 -08:00
Jagadeesh Kona
76d5437ca4 clk: qcom: gcc-sdx75: Update the SDCC RCGs to use shared_floor_ops
[ Upstream commit 4b057462bb ]

Use shared_floor_ops for the SDCC RCGs so the RCG is safely parked
during disable and the new parent configuration is programmed in
hardware only when the new parent is enabled, avoiding cases where
the RCG configuration fails to update.

Fixes: 108cdc09b2 ("clk: qcom: Add GCC driver support for SDX75")
Reviewed-by: Taniya Das <taniya.das@oss.qualcomm.com>
Reviewed-by: Imran Shaik <imran.shaik@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Signed-off-by: Jagadeesh Kona <jagadeesh.kona@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251127-sdcc_shared_floor_ops-v2-4-473afc86589c@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-02-26 14:59:29 -08:00
Jagadeesh Kona
37babf26bf clk: qcom: gcc-sm4450: Update the SDCC RCGs to use shared_floor_ops
[ Upstream commit 458e8a0821 ]

Use shared_floor_ops for the SDCC RCGs so the RCG is safely parked
during disable and the new parent configuration is programmed in
hardware only when the new parent is enabled, avoiding cases where
the RCG configuration fails to update.

Fixes: c32c4ef98b ("clk: qcom: Add GCC driver support for SM4450")
Reviewed-by: Taniya Das <taniya.das@oss.qualcomm.com>
Reviewed-by: Imran Shaik <imran.shaik@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Signed-off-by: Jagadeesh Kona <jagadeesh.kona@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251127-sdcc_shared_floor_ops-v2-3-473afc86589c@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-02-26 14:59:29 -08:00
Jagadeesh Kona
7873e2a407 clk: qcom: gcc-sm8750: Update the SDCC RCGs to use shared_floor_ops
[ Upstream commit a7231d4aa0 ]

Use shared_floor_ops for the SDCC RCGs so the RCG is safely parked
during disable and the new parent configuration is programmed in
hardware only when the new parent is enabled, avoiding cases where
the RCG configuration fails to update.

Fixes: 3267c774f3 ("clk: qcom: Add support for GCC on SM8750")
Reviewed-by: Taniya Das <taniya.das@oss.qualcomm.com>
Reviewed-by: Imran Shaik <imran.shaik@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Signed-off-by: Jagadeesh Kona <jagadeesh.kona@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251127-sdcc_shared_floor_ops-v2-2-473afc86589c@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-02-26 14:59:29 -08:00
Jagadeesh Kona
527508eb57 clk: qcom: gcc-sm8450: Update the SDCC RCGs to use shared_floor_ops
[ Upstream commit 89428516f9 ]

Use shared_floor_ops for the SDCC RCGs so the RCG is safely parked
during disable and the new parent configuration is programmed in
hardware only when the new parent is enabled, avoiding cases where
the RCG configuration fails to update.

Fixes: a27ac3806b ("clk: qcom: gcc-sm8450: Use floor ops for SDCC RCGs")
Reviewed-by: Taniya Das <taniya.das@oss.qualcomm.com>
Reviewed-by: Imran Shaik <imran.shaik@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Signed-off-by: Jagadeesh Kona <jagadeesh.kona@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251127-sdcc_shared_floor_ops-v2-1-473afc86589c@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-02-26 14:59:29 -08:00
Martin Blumenstingl
1bc262014a clk: meson: g12a: Limit the HDMI PLL OD to /4
[ Upstream commit 7aa6c24697 ]

GXBB has the HDMI PLL OD in the HHI_HDMI_PLL_CNTL2 register while for
G12A/G12B/SM1 the OD has moved to HHI_HDMI_PLL_CNTL0. At first glance
the rest of the OD setup seems identical.

However, looking at the downstream kernel sources as well as testing
shows that G12A/G12B/SM1 only supports three OD values:
- register value 0 means: divide by 1
- register value 1 means: divide by 2
- register value 2 means: divide by 4

Downstream sources are also only using OD register values 0, 1 and 2
for G12A/G12B/SM1 (while for GXBB the downstream kernel sources are also
using value 3 which means: divide by 8).

Add clk_div_table and have it replace the CLK_DIVIDER_POWER_OF_TWO flag
to make the kernel's view of this register match with how the hardware
actually works.

Fixes: 085a4ea93d ("clk: meson: g12a: add peripheral clock controller")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Link: https://lore.kernel.org/r/20260105204710.447779-3-martin.blumenstingl@googlemail.com
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-02-26 14:59:29 -08:00
Martin Blumenstingl
e82d721b05 clk: meson: gxbb: Limit the HDMI PLL OD to /4 on GXL/GXM SoCs
[ Upstream commit 5b1a43950f ]

GXBB has the HDMI PLL OD in the HHI_HDMI_PLL_CNTL2 register while for
GXL/GXM the OD has moved to HHI_HDMI_PLL_CNTL3. At first glance the rest
of the OD setup seems identical.

However, looking at the downstream kernel sources as well as testing
shows that GXL only supports three OD values:
- register value 0 means: divide by 1
- register value 1 means: divide by 2
- register value 2 means: divide by 4

Using register value 3 (which on GXBB means: divide by 8) still divides
by 4 as verified using meson-clk-measure. Downstream sources are also
only using OD register values 0, 1 and 2 for GXL (while for GXBB the
downstream kernel sources are also using value 3).

Add clk_div_table and have it replace the CLK_DIVIDER_POWER_OF_TWO flag
to make the kernel's view of this register match with how the hardware
actually works.

Fixes: 69d9229327 ("clk: meson: add the gxl hdmi pll")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Link: https://lore.kernel.org/r/20260105204710.447779-2-martin.blumenstingl@googlemail.com
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-02-26 14:59:28 -08:00
Taniya Das
f7b0686119 clk: qcom: rcg2: compute 2d using duty fraction directly
[ Upstream commit d6205a1878 ]

The duty-cycle calculation in clk_rcg2_set_duty_cycle() currently
derives an intermediate percentage `duty_per = (num * 100) / den` and
then computes:

    d = DIV_ROUND_CLOSEST(n * duty_per * 2, 100);

This introduces integer truncation at the percentage step (division by
`den`) and a redundant scaling by 100, which can reduce precision for
large `den` and skew the final rounding.

Compute `2d` directly from the duty fraction to preserve precision and
avoid the unnecessary scaling:

    d = DIV_ROUND_CLOSEST(n * duty->num * 2, duty->den);

This keeps the intended formula `d ≈ n * 2 * (num/den)` while performing
a single, final rounded division, improving accuracy especially for small
duty cycles or large denominators. It also removes the unused `duty_per`
variable, simplifying the code.

There is no functional changes beyond improved numerical accuracy.

Fixes: 7f891faf59 ("clk: qcom: clk-rcg2: Add support for duty-cycle for RCG")
Signed-off-by: Taniya Das <taniya.das@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260105-duty_cycle_precision-v2-1-d1d466a6330a@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-02-26 14:59:28 -08:00