treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_56.RULE (part 2)

Based on the normalized pattern:

this file is licensed under the terms of the gnu general public
license version 2 this program is licensed as is without any warranty
of any kind whether express or implied

extracted by the scancode license scanner the SPDX license identifier

GPL-2.0-only

has been chosen to replace the boilerplate/reference.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

clk: SPEAr: pr_err() strings should end with newlines

pr_err() messages should end with a new-line to avoid other messages
being concatenated.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>

clk: spear: Delete error messages for failed memory allocations

Omit extra messages for a memory allocation failure in these
functions.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>

clk: spear: make clk_ops const

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: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>

Update Viresh Kumar's email address

Switch to my kernel.org alias instead of a badly named gmail address,
which I rarely use.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

clk: SPEAr: Staticize clk_frac_ops

clk_frac_ops is local to this file. Make it static.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>

Viresh has moved

viresh.kumar@st.com email-id doesn't exist anymore as I have left the
company. Replace ST's id with viresh.linux@gmail.com.

It also updates .mailmap file to fix address for 'git shortlog'

Signed-off-by: Viresh Kumar <viresh.linux@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

SPEAr: clk: Add Fractional Synthesizer clock

All SPEAr SoC's contain Fractional Synthesizers. Their Fout is derived from
following equations:

Fout = Fin / (2 * div) (division factor)
div is 17 bits:-
0-13 (fractional part)
14-16 (integer part)
div is (16-14 bits).(13-0 bits) (in binary)

Fout = Fin/(2 * div)
Fout = ((Fin / 10000)/(2 * div)) * 10000
Fout = (2^14 * (Fin / 10000)/(2^14 * (2 * div))) * 10000
Fout = (((Fin / 10000) << 14)/(2 * (div << 14))) * 10000

div << 14 is simply 17 bit value written at register.

This patch adds in support for this type of clock.

Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Reviewed-by: Mike Turquette <mturquette@linaro.org>