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The IPU and DSP remote processor cores and their corresponding MMUs on
OMAP4 SoCs have hardreset lines associated with them and are controlled
by a PRCM reset line each. Any clkctrl enable/disable operations cannot
be checked for module enabled/disabled status independent of the reset
operation, and this causes some unwanted timeouts in the kernel and
unbalanced states for these clocks. These details should be handled by
the driver integration code itself.
Add the CLKF_NO_IDLEST flag to both the IPU and DSP clkctrl clocks so
that these module status checks are skipped.
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
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Based on 2 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation #
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 4122 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Re-route all opt-clocks to use the new clkctrl clocks also, instead of
depending on the old dt clocks. Also, add aliases for certain clkctrl
clocks that hwmod core depends upon. The alias list can be stripped
down once hwmod database no longer needs these.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
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Most of the clock aliases are no longer needed, only leave the
timer_32k_ck one in place which is required by OMAP timer code.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
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Add data for omap4 clkctrl clocks, and register it within the clkctrl
driver.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
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Cleanup any unnecessary DT_CLK() alias entries from the OMAP4 clock file.
Most of these are now handled dynamically by the driver code.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
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Several exported TI clock driver features are no longer needed outside
the clock driver itself, thus move all of these to the driver private
header file. Also, update some of the driver files to actually include
this header.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
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The DT clock aliases for timers using the legacy OMAP timer
device names have been cleaned up. These device names reflect
the names used in legacy boot, and are no longer applicable
as OMAP4 is DT boot only now.
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
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These modules don't need to include clk-private.h. Replace the
include with clk.h because these modules are clock consumers and
also include clk-provider.h in clk/ti.h because struct
clk_hw_omap has a struct clk_hw embedded in it.
Cc: Tero Kristo <t-kristo@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Reviewed-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
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When arch/arm/mach-omap2/gpmc.c calls clk_get(..., "fck"), it will
get a dummy clock and try to use it. As the rate is configured to zero,
this will result in several divisions by zero, and misconfigured
timings, with devices on the bus being lost in the La La Land.
It is better to remove gpmc_fck from the dummy clocks, so that gpmc.c
can fail gracefully.
Cc: stable@vger.kernel.org # v3.14+
Signed-off-by: Florian Vaussard <florian.vaussard@epfl.ch>
Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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clk-44xx.c now contains the clock init functionality for omap4, including
DT clock registration and adding of static clkdev entries.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Tested-by: Nishanth Menon <nm@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
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Suman Anna
Thomas Gleixner
Tero Kristo
Stephen Boyd
Florian Vaussard