Commit Graph

11 Commits

Author SHA1 Message Date
Thomas Gleixner 9952f6918d treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201
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 you should have received a copy of the gnu general
  public license along with this program if not see http www gnu org
  licenses

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 228 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Steve Winslow <swinslow@gmail.com>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190528171438.107155473@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:29:52 -07:00
Dmitry Osipenko 2dcabf053c clk: tegra: Mark HCLK, SCLK and EMC as critical
Machine dies if HCLK, SCLK or EMC is disabled. Hence mark these clocks
as critical.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Cc: <stable@vger.kernel.org> # v4.16
Signed-off-by: Thierry Reding <treding@nvidia.com>
2018-03-12 13:58:58 +01:00
Jon Hunter 109eba2eb6 clk: tegra: Mark APB clock as critical
Currently, the APB clock is registered with the CLK_IGNORE_UNUSED flag
to prevent the clock from being disabled if unused on boot. However,
even if it is used, it still needs to be always kept enabled so that it
doesn't get inadvertently disabled when all of its children are, and so
update the flag for the APB clock to be CLK_IS_CRITICAL.

Suggested-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Acked-By: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-11-01 14:58:13 +01:00
Alex Frid ac99afe55a clk: tegra: Re-factor T210 PLLX registration
Tegra210 PLLX uses the same sequences than then PLLC instances. So there
is no need to have a special registration function and ops struct for it.
Simplify the code by changing all references to the Tegra210 PLLX
registration function to the Tegra210 PLLC registration function and
avoid duplicate functionality.

Based on work by Alex Frid <afrid@nvidia.com>

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Tested-by: Thierry Reding <treding@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-23 15:59:59 -07:00
Jon Hunter 5a1d5eff3e clk: tegra: super: Fix sparse warnings for functions not declared as static
Sparse reports the following warnings for structures and functions that
should be declared static:

drivers/clk/tegra/clk-tegra-super-gen4.c:70:35: warning: symbol
 'tegra_super_gen_info_gen4' was not declared. Should it be static?
drivers/clk/tegra/clk-tegra-super-gen4.c:96:35: warning: symbol
 'tegra_super_gen_info_gen5' was not declared. Should it be static?
drivers/clk/tegra/clk-tegra-super-gen4.c:174:13: warning: symbol
 'tegra_super_clk_init' was not declared. Should it be static?

Fix this by making the above static.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Acked-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-02-02 15:49:34 +01:00
Bill Huang 139fd30943 clk: tegra: Add Super Gen5 Logic
Super clock divider control and clock source mux of Tegra210 has changed
a little against prior SoCs, this patch adds Gen5 logic to address those
differences.

Signed-off-by: Bill Huang <bilhuang@nvidia.com>
Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-12-17 13:37:55 +01:00
Stephen Boyd a7c602bf42 clk: tegra: Changes for v4.3-rc1
This contains the DFLL driver needed to implement CPU frequency scaling
 on Tegra.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABCAAGBQJVzfAzAAoJEN0jrNd/PrOhmjwP/iUYYxJ2kQ8lOxIxJ6bujBAF
 2PTdT5NOAKu0HJkKDHDtGO8gKRqZOPpyfoI8Ol5Xy/C0lIJ/uYoXqCZxfGjb2671
 XzGQFcd8j12qHu0lR5YD8wbivfBXzi4RCwFudTtdZi59dZqat8qUxtvHhtSVs1X9
 I6bN63ykXuHENAhVLdfz0+Trh4sMffOQ+jILQneB6OoKg+GGZpPkJM4WUhrilVKI
 Rw8MHxOlI5/2BUwxSRpu6K5BO1YVfWN5kgD/oyYrzRpd7p2Lxf15NTK/1zMOQ0Pt
 MD3J3enNqLT4brvnLstCChdaXz9r+CN4ut28Tnp7ocvBHIA/+1RjOfRTmsdcYRCE
 CelKsymLgEIFGZfQO57PDZXf5nEbnjhgshj1vNEWrXq6B8tgYeemwFKl1f7r6qEO
 pYmhLDV+AdP6+97FX1ySvBpBVY+GSJxOTupWYb3EvU2iwl9kfdcUs/EOQeo0oz+j
 coMWHQE9lcawcsQlbdhgq5uRGNrD9s4OkZAC4Ga5+ZiNo88gUzgE84WqYhQ6GJNE
 If+7RcJeCY4g2tpQJJtBM6kObtd+MWa7zSzHBjks7Il7y9C8uqpI5zgG3sufh/sG
 TmgxPv1FUEZBNowv6eA36euo4iw2XhZ3MFg2tlJdwgRj8+cfyK+fue/skCXuToaH
 fqeiJYcfpOv8s5JXfU3P
 =QWKO
 -----END PGP SIGNATURE-----

Merge tag 'tegra-for-4.3-clk' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into clk-next

clk: tegra: Changes for v4.3-rc1

This contains the DFLL driver needed to implement CPU frequency scaling
on Tegra.
2015-08-25 15:55:28 -07:00
Stephen Boyd 584ac4e935 clk: tegra: Properly include clk.h
Clock provider drivers generally shouldn't include clk.h because
it's the consumer API. Only include clk.h in files that are using
it. Also add in a clkdev.h include that was missing in a file
using clkdev APIs.

Cc: Peter De Schrijver <pdeschrijver@nvidia.com>
Cc: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-20 11:11:17 -07:00
Tuomas Tynkkynen 79cf95c763 clk: tegra: Add the DFLL as a possible parent of the cclk_g clock
The DFLL clocksource was missing from the list of possible parents for
the fast CPU cluster. Add it to the list.

Signed-off-by: Tuomas Tynkkynen <ttynkkynen@nvidia.com>
Signed-off-by: Mikko Perttunen <mikko.perttunen@kapsi.fi>
Acked-by: Michael Turquette <mturquette@linaro.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-07-16 10:40:20 +02:00
Andrew Bresticker 88b4bd7071 clk: tegra: cclk_lp has a pllx/2 divider
When pll_x is the parent of cclk_lp, PLLX_DIV2_BYPASS_LP determines
whether cclk_lp output is divided by 2.  Set TEGRA_DIVIDER_2 so that
the clk_super driver is aware of this.

Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
2014-02-17 16:18:28 +02:00
Peter De Schrijver a7c8485a0e clk: tegra: introduce common gen4 super clock
Introduce a common function which performs super clock initialization for
Tegra114 and beyond.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
2013-11-26 18:46:50 +02:00