| Commit message (Collapse) | Author | Age | Files | Lines |
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Make sure the pll_ss ops are compiled even when only building for Tegra210.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Reviewed-by: Shreshtha Sahu <ssahu@nvidia.com>
Tested-by: Shreshtha Sahu <ssahu@nvidia.com>
Reviewed-by: Jon Mayo <jmayo@nvidia.com>
Tested-by: Thierry Reding <treding@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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PLL SS was only controlled when setting the PLL rate, not when the PLL itself
is enabled or disabled.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Reviewed-by: Jon Mayo <jmayo@nvidia.com>
Tested-by: Thierry Reding <treding@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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The clock bimc_gpu_clk_src is incorrectly set to use the shared rcg2
ops, which are for RCGs with child branches controlled by different
CPUs.
The result of the incorrect ops is that the GPU's PM runtime may leave
this clock set at a very low rate. Fix this issue by using the correct
rcg2 ops.
Fixes: a2e8272f3f89 ("clk: qcom: Add MSM8916 gpu clocks")
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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Make these const as they are only stored in the const field of a
clk_init_data structure.
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into clk-next
Pull Renesas clk driver updates from Geert Uytterhoeven:
* Add more module clocks for R-Car V2H and M3-W,
* Add support for the R-Car Gen3 USB 2.0 clock selector PHY,
* Add support for the new R-Car D3 SoC,
* Allow compile-testing of all (sub)drivers now all dummy infrastructure
is available,
* Small fixes and cleanups.
* tag 'clk-renesas-for-v4.14-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers:
clk: renesas: r8a7796: Add USB3.0 clock
clk: renesas: rcar-usb2-clock-sel: Add R-Car USB 2.0 clock selector PHY
clk: renesas: cpg-mssr: Add R8A77995 support
clk: renesas: rcar-gen3: Add support for SCCG/Clean peripheral clocks
clk: renesas: rcar-gen3: Add divider support for PLL1 and PLL3
clk: renesas: Add r8a77995 CPG Core Clock Definitions
clk: renesas: rcar-gen3-cpg: Refactor checks for accessing the div table
clk: renesas: rcar-gen3-cpg: Drop superfluous variable
clk: renesas: Allow compile-testing of all (sub)drivers
clk: renesas: r8a7792: Add IMR-LX3/LSX3 clocks
clk: renesas: div6: Document fields used for parent selection
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This patch adds USB3.0-IF0 clock for R8A7796 SoC.
Signed-off-by: Hiromitsu Yamasaki <hiromitsu.yamasaki.ym@renesas.com>
Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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R-Car USB 2.0 controller can change the clock source from an oscillator
to an external clock via a register. So, this patch adds support
the clock source selector as a clock driver.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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Add R-Car D3 (R8A77995) Clock Pulse Generator / Module Standby and
Software Reset support, using the CPG/MSSR driver core and the common
R-Car Gen3 CPG code.
Based on the R-Car Series, 3rd Generation Hardware User's Manual, Rev.
0.55, Jun. 30, 2017.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Rob Herring <robh@kernel.org>
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On R-Car Gen3 SoCs with a Spread Spectrum Clock Generator (e.g. R-Car
D3), a peripheral clock divider has been added, to select between clean
and spread spectrum parents.
Add a new clock type to the R-Car Gen3 driver core to handle this.
To avoid increasing the size of struct cpg_core_clk, both parents and
dividers are stored in the existing parent resp. div fields.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
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On some R-Car Gen3 SoCs (e.g. R-Car D3), PLL1 and PLL3 use a divider
value different from one. Extend struct rcar_gen3_cpg_pll_config to handle
this. As all multipliers and dividers are small, table size increase
can be kept limited by storing them in u8s instead of unsigned ints,
which saves ca. 0.5 KiB for a generic kernel.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
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Do the checks for accessing the SD divider table only when the rate gets
updated, namely on init and set_rate. In all other cases, reuse the last
value. This simplifies code, runtime load, and error reporting.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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'rate' is not used, so we can use 'parent_rate' directly.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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Enable compile-testing of the remaining clock drivers and subdrivers,
now dummies are available for of_clk_get_from_provider(),
of_device_compatible_match(), and rcar_rst_read_mode_pins(), and the
CPG/MSSR driver core has been converted from of_match_node() to
of_device_get_match_data().
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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Add the module clocks for the Image Renderer Light (SRAM) Extended 3
(IMR-LX3/LSX3) Distortion Correction Engines on R-Car V2H.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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Add the missing documentation for the fields in struct div6_clock
related to parent selection for DIV6 clocks with selectable parents, as
found in R/SH-Mobile SoCs.
Fixes: c6d67fb037f4eaaf ("clk: shmobile: div6: support selectable-input clocks")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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Silence the sparse warning
clk/rockchip/clk.c:172:6: warning: symbol 'rockchip_fractional_approximation' was not declared. Should it be static?
Cc: Elaine Zhang <zhangqing@rock-chips.com>
Cc: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into clk-next
Pull Rockchip clk driver updates from Heiko Stuebner:
The biggest change is fixing the jitter on the fractional clock-type
Rockchip socs experience with the default approximation. For that we
introduce the ability to override it with a clock-specific approximation
and use that to create the needed rate settings as described in the
Rockchip soc manuals (same for all Rockchip socs).
Apart from that we have support for the rk3126 clock controller
which is similar to the rk3128 with some minimal differences
and a lot of improvements and fixes for the rv1108 clock controller
(missing clocks, some clock-ids, naming fixes, register fixes).
* tag 'v4.14-rockchip-clk1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
clk: rockchip: fix the rv1108 clk_mac sel register description
clk: rockchip: rename rv1108 macphy clock to mac
clk: rockchip: add rv1108 ACLK_GMAC and PCLK_GMAC clocks
clk: rockchip: add rk3228 SCLK_SDIO_SRC clk id
clk: rockchip: add rv1108 ACLK_GAMC and PCLK_GMAC ID
clk: rockchip: add rk3228 sclk_sdio_src ID
clk: rockchip: add special approximation to fix up fractional clk's jitter
clk: fractional-divider: allow overriding of approximation
clk: rockchip: modify rk3128 clk driver to also support rk3126
dt-bindings: add documentation for rk3126 clock
clk: rockchip: add some critical clocks for rv1108 SoC
clk: rockchip: rename some of clks for rv1108 SoC
clk: rockchip: fix up some clks describe error for rv1108 SoC
clk: rockchip: support more clks for rv1108
clk: rockchip: fix up the pll clks error for rv1108 SoC
clk: rockchip: support more rates for rv1108 cpuclk
clk: rockchip: fix up indentation of some RV1108 clock-ids
clk: rockchip: rename the clk id for HCLK_I2S1_2CH
clk: rockchip: add more clk ids for rv1108
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The source clock ordering is wrong, as shown in the TRM:
cru_sel24_con[8]
rmii_extclk_sel
clock source select control register
1'b0: from internal PLL
1'b1: from external IO
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Reviewed-by: David Wu <david.wu@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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This MAC has no internal phy for rv1108 and the whole clock
infrastructure hasn't been used yet, so is safe to fix.
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Reviewed-by: David Wu <david.wu@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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Add gmac aclk and pclk clock gates.
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Reviewed-by: David Wu <david.wu@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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In some special circumstances, may be need to reparent clk for sclk_sdio_src.
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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>From Rockchips fractional divider description:
3.1.9 Fractional divider usage
To get specific frequency, clocks of I2S, SPDIF, UARTcan be generated by
fractional divider. Generally you must set that denominator is 20 times
larger than numerator to generate precise clock frequency. So the
fractional divider applies only to generate low frequency clock like
I2S, UART.
Therefore add a special approximation function that handles this
special requirement.
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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Fractional dividers may have special requirements concerning numerator
and denominator selection that differ from just getting the best
approximation.
For example on Rockchip socs the denominator must be at least 20 times
larger than the numerator to generate precise clock frequencies.
Therefore add the ability to provide custom approximation functions.
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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rk3128 and rk3126 have some gate registers describe differences.
So need to make some distinctions.
The RK3126 and RK3128 Same clock description we move it to
the common clock branches.
And the different clks description use the own clock branches.
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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the bus/periph/nclk_ddrupctl/pclk_ddrmon/pclk_acodecphy/pclk_pmu
no driver to handle them,
Chip design requirements for these clock to always on.
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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Rename some of clks to keep the consistency with the TRM.
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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1. fix up the parent name
2. remove the CLK_IGNORE_UNUSED flag for some clk not need to always on.
3. fix up some clks regs describe error.
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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Add the description of the missing clock,
make the clock more complete.
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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fix up the lock_shift describe error.
remove the ROCKCHIP_PLL_SYNC_RATE flag for gpll.
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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fix up the cpuclk rates table for support more freqs.
fix up the mux_core_mask describe error.
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into clk-next
Pull Allwinner clock changes from Chen-Yu Tsai:
* Added support for fixed post-divider on divider and NKM-style clocks
* Added driver for R40 CCU
* Fix sunxi-ng/ccu-sunxi-r.h header file guard macro typo
* Make fractional clock modes really used and correctly configured
* Make H3 cpu clock rate change correctly to be used with cpufreq
* tag 'sunxi-clk-for-4.14-2' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
clk: sunxi-ng: support R40 SoC
dt-bindings: add compatible string for Allwinner R40 CCU
clk: sunxi-ng: nkm: add support for fixed post-divider
clk: sunxi-ng: div: Add support for fixed post-divider
dt-bindings: clock: sunxi-ccu: Add compatibles for sun5i CCU driver
clk: sunxi-ng: allow set parent clock (PLL_CPUX) for CPUX clock on H3
clk: sunxi-ng: h3: gate then ungate PLL CPU clk after rate change
clk: sunxi-ng: Wait for lock when using fractional mode
clk: sunxi-ng: Make fractional helper less chatty
clk: sunxi-ng: multiplier: Fix fractional mode
clk: sunxi-ng: Fix fractional mode for N-M clocks
clk: sunxi-ng: Fix header guard of ccu-sun8i-r.h
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Allwinner R40 SoC have a clock controller module in the style of the
SoCs beyond sun6i, however, it's more rich and complex.
Add support for it.
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
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SATA PLL on Allwinner R40 is of type (parent) * N * K / M / 6 where 6 is
the fixed post-divider.
Add post-divider support for NKM type clock.
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
[wens@csie.org: Fixed application of post-divider in set_rate callback]
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
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SATA clock on sun4i/sun7i is of type (parent) / M / 6 where
6 is fixed post-divider.
Signed-off-by: Priit Laes <plaes@plaes.org>
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
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The CPUX clock, which is the main clock of the ARM core on Allwinner H3,
can be adjusted by changing the frequency of the PLL_CPUX clock.
Allowing setting parent clock for the CPUX clock, thus the PLL_CPUX
clock can be adjusted when adjusting the CPUX clock.
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Fixes: 0577e4853bfb ("clk: sunxi-ng: Add H3 clocks")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
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This patch utilizes the new PLL clk notifier to gate then ungate the
PLL CPU clock after rate changes. This should prevent any system hangs
resulting from cpufreq changes to the clk.
Reported-by: Ondrej Jirman <megous@megous.com>
Fixes: 0577e4853bfb ("clk: sunxi-ng: Add H3 clocks")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Tested-by: Icenowy Zheng <icenowy@aosc.io>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
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Currently ccu_frac_helper_set_rate() doesn't wait for a lock bit to be
set before returning. Because of that, unstable clock may be used.
Add a wait for lock in the helper function.
Fixes: 89a3dfb78707 ("clk: sunxi-ng: Add fractional lib")
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
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ccu_frac_helper_read_rate() prints some info which is not really
helpful except during debugging.
Replace printk() with pr_debug().
Fixes: 89a3dfb78707 ("clk: sunxi-ng: Add fractional lib")
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
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Driver for multiplier clock is missing a call to
ccu_frac_helper_enable() when fractional mode is selected.
Add a call to ccu_frac_helper_enable().
Fixes: d77e8135b340 ("clk: sunxi-ng: multiplier: Add fractional support")
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
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N-M factor clock driver is missing a call to ccu_frac_helper_enable()
when fractional mode is used. Additionally, most SoCs require that M
factor must be set to 0 when fractional mode is used.
Without this patch, clock keeps the old value and clk_set_rate() returns
without error.
Fixes: 6174a1e24b0d ("clk: sunxi-ng: Add N-M-factor clock support")
CC: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
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Remove trailing extra underscore in definition of _CCU_SUN8I_R_H
Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/snawrocki/clk into clk-next
Pull Samsung clk driver updates from Sylwester Nawrocki:
Changes in definitions of audio related clocks for Exynos5420/5422/5800
SoCs: a fix of mau_epll clock definition and changes enabling clock rate
setting propagation on a path from the I2S IP block up the EPLL.
* tag 'clk-v4.14-samsung' of git://git.kernel.org/pub/scm/linux/kernel/git/snawrocki/clk:
clk: samsung: exynos542x: Enable clock rate propagation up to the EPLL
clk: samsung: Add CLK_SET_RATE_PARENT to some AUDSS CLK CON clocks
clk: samsung: Fix mau_epll clock definition for exynos5422
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The CLK_SET_RATE_PARENT flag is added to clocks between the EPLL
and the audio subsystem clock controller so that the EPLL's output
frequency can be set indirectly with clk_set_rate() on a leaf clock.
That should be safe as EPLL is normally only used to generate clock
for the audio subsystem.
With this change we can avoid passing the EPLL clock to the ASoC
machine driver.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
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This allows clk rate propagation up to the clock tree so EPLL
can be reprogrammed indirectly when setting rate of the Audio
Subsystem clocks.
The advantage is that sound machine driver can operate only
on the leaf clocks rather than explicitly re-configuring
the root clock (EPLL).
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
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Parent clock of the MAU_EPLL gate clock on exynos5422 is
"mout_user_mau_epll", not "mout_mau_epll_clk". This change
only affects exynos5422/5800.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
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clk-next
Pull Amlogic clock driver updates from Neil Armstrong:
* meson8b: add the reset controller to the clkc
* meson: expose all clk ids
* gxbb-aoclk: Add CEC 32k clock
* gxbb: add mmc input 0 clocks
* meson: fix protection against undefined clks
* gxbb: fix audio divider flags
* tag 'meson-clk-for-4.14' of git://github.com/baylibre/clk-meson:
clk: meson: gxbb-aoclk: Add CEC 32k clock
clk: meson: gxbb-aoclk: Switch to regmap for register access
dt-bindings: clock: amlogic, gxbb-aoclkc: Update bindings
clk: meson: gxbb: Add sd_emmc clk0 clocks
clk: meson: gxbb: fix clk_mclk_i958 divider flags
clk: meson: gxbb: fix meson cts_amclk divider flags
clk: meson: meson8b: register the built-in reset controller
dt-bindings: clock: gxbb-aoclk: Add CEC 32k clock
clk: meson: gxbb: Add sd_emmc clk0 clkids
clk: meson-gxbb: expose almost every clock in the bindings
clk: meson8b: expose every clock in the bindings
clk: meson: gxbb: fix protection against undefined clks
clk: meson: meson8b: fix protection against undefined clks
dt-bindings: clock: meson8b: describe the embedded reset controller
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The CEC 32K AO Clock is a dual divider with dual counter to provide a more
precise 32768Hz clock for the CEC subsystem from the external xtal.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
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Switch the aoclk driver to use the new bindings and switch all the
registers access to regmap only.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
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Input source 0 of the mmc controllers is not directly xtal, as currently
described in DT. Each controller is fed by a composite clock (the usual
mux, divider and gate). The muxes inputs are the xtal (default) and the
fclk_div clocks. These parents, along with the divider, should be able to
provide the necessary rates for mmc and nand operation.
The input muxes should also be able to take mpll2, mpll3 and gp0_pll but
these are precious clocks, needed for other usage. It is better if the
mmc does not use these them. For this reason, mpll2, mpll3 and gp0_pll is
not listed among the possible parents.
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
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CLK_DIVIDER_ROUND_CLOSEST was incorrectly put in the hw.init flags
while it should have been in the divider flags
Fixes: 3c277c247eab ("clk: meson: gxbb: add cts_mclk_i958")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
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