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path: root/drivers/platform/x86/pmc_atom.c
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* treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288Thomas Gleixner2019-06-05
| | | | | | | | | | | | | | | | | | | | | | | | | Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms and conditions of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 263 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141901.208660670@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* platform/x86: pmc_atom: Add several Beckhoff Automation boards to ↵Steffen Dirkwinkel2019-05-20
| | | | | | | | | | | | | critclk_systems DMI table There are several Beckhoff Automation industrial PC boards which use pmc_plt_clk* clocks for ethernet controllers. This adds affected boards to critclk_systems DMI table so the clocks are marked as CLK_CRITICAL and not turned off. Fixes: 648e921888ad ("clk: x86: Stop marking clocks as CLK_IS_CRITICAL") Signed-off-by: Steffen Dirkwinkel <s.dirkwinkel@beckhoff.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
* platform/x86: pmc_atom: Add Lex 3I380D industrial PC to critclk_systems DMI ↵Hans de Goede2019-05-20
| | | | | | | | | | | | | | | table The Lex 3I380D industrial PC has 4 ethernet controllers on board which need pmc_plt_clk0 - 3 to function, add it to the critclk_systems DMI table, so that drivers/clk/x86/clk-pmc-atom.c will mark the clocks as CLK_CRITICAL and they will not get turned off. Fixes: 648e921888ad ("clk: x86: Stop marking clocks as CLK_IS_CRITICAL") Reported-and-tested-by: Semyon Verchenko <semverchenko@factor-ts.ru> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
* platform/x86: pmc_atom: Drop __initconst on dmi tableStephen Boyd2019-04-11
| | | | | | | | | | | | It's used by probe and that isn't an init function. Drop this so that we don't get a section mismatch. Reported-by: kbuild test robot <lkp@intel.com> Cc: David Müller <dave.mueller@gmx.ch> Cc: Hans de Goede <hdegoede@redhat.com> Cc: Andy Shevchenko <andy.shevchenko@gmail.com> Fixes: 7c2e07130090 ("clk: x86: Add system specific quirk to mark clocks as critical") Signed-off-by: Stephen Boyd <sboyd@kernel.org>
* clk: x86: Add system specific quirk to mark clocks as criticalDavid Müller2019-04-10
| | | | | | | | | | | | | | | Since commit 648e921888ad ("clk: x86: Stop marking clocks as CLK_IS_CRITICAL"), the pmc_plt_clocks of the Bay Trail SoC are unconditionally gated off. Unfortunately this will break systems where these clocks are used for external purposes beyond the kernel's knowledge. Fix it by implementing a system specific quirk to mark the necessary pmc_plt_clks as critical. Fixes: 648e921888ad ("clk: x86: Stop marking clocks as CLK_IS_CRITICAL") Signed-off-by: David Müller <dave.mueller@gmx.ch> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
* seq_file: Introduce DEFINE_SHOW_ATTRIBUTE() helper macroAndy Shevchenko2018-02-07
| | | | | | | | | | The DEFINE_SHOW_ATTRIBUTE() helper macro would be useful for current users, which are many of them, and for new comers to decrease code duplication. Acked-by: Lee Jones <lee.jones@linaro.org> Acked-by: Darren Hart (VMware) <dvhart@infradead.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
* platform/x86: pmc_atom: introduce DEFINE_SHOW_ATTRIBUTE() macroAndy Shevchenko2017-12-21
| | | | | | | This macro deduplicates a lot of similar code in the pmc_atom.c module. Targeting to be moved to seq_file.h eventually. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
* platform/x86: Enable Atom PMC platform clocksIrina Tirdea2017-01-26
| | | | | | | | | | | | | | | | | | | | | The BayTrail and CherryTrail platforms provide platform clocks through their Power Management Controller (PMC). The SoC supports up to 6 clocks (PMC_PLT_CLK[0..5]) with a frequency of either 19.2 MHz (PLL) or 25 MHz (XTAL) for BayTrail and a frequency of 19.2 MHz (XTAL) for CherryTrail. These clocks are available for general system use, where appropriate. For example, the usage for platform clocks suggested in the datasheet is the following: PLT_CLK[0..2] - Camera PLT_CLK[3] - Audio Codec PLT_CLK[4] - PLT_CLK[5] - COMMs Signed-off-by: Irina Tirdea <irina.tirdea@intel.com> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
* arch/x86/platform/atom: Move pmc_atom to drivers/platform/x86Irina Tirdea2017-01-26
The pmc_atom driver does not contain any architecture specific code. It only enables the SoC Power Management Controller driver for BayTrail and CherryTrail platforms. Move the pmc_atom driver from arch/x86/platform/atom to drivers/platform/x86. Also clean-up and reorder include files by alphabetical order in pmc_atom.h Signed-off-by: Irina Tirdea <irina.tirdea@intel.com> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>