Revision e9ba4032a2568ef5b360de95eb6e09195a1b2efd authored by Maarten Lankhorst on 17 July 2017, 11:13:55 UTC, committed by Daniel Vetter on 27 July 2017, 20:07:29 UTC
ddb_allocation && ddb_allocation / blocks_per_line >= 1 is the same as ddb_allocation >= blocks_per_line, so use the latter to simplify this. This fixes the following compiler warning: drivers/gpu/drm/i915/intel_pm.c:4467]: (warning) Comparison of a boolean expression with an integer other than 0 or 1. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Fixes: d555cb5827d6 ("drm/i915/skl+: use linetime latency if ddb size is not available") Cc: "Mahesh Kumar" <mahesh1.kumar@intel.com> Reported-by: David Binderman <dcb314@hotmail.com> Cc: David Binderman <dcb314@hotmail.com> Cc: <drm-intel-fixes@lists.freedesktop.org> # v4.13-rc1+ Reviewed-by: Mahesh Kumar <mahesh1.kumar@intel.com> (cherry picked from commit 54d20ed1fff23c7d2633f01fc788111bf9c51c5d) Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20170717111355.4523-1-maarten.lankhorst@linux.intel.com Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
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cordic.h
/*
* Copyright (c) 2011 Broadcom Corporation
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef __CORDIC_H_
#define __CORDIC_H_
#include <linux/types.h>
/**
* struct cordic_iq - i/q coordinate.
*
* @i: real part of coordinate (in phase).
* @q: imaginary part of coordinate (quadrature).
*/
struct cordic_iq {
s32 i;
s32 q;
};
/**
* cordic_calc_iq() - calculates the i/q coordinate for given angle.
*
* @theta: angle in degrees for which i/q coordinate is to be calculated.
* @coord: function output parameter holding the i/q coordinate.
*
* The function calculates the i/q coordinate for a given angle using the
* CORDIC algorithm. The coordinate consists of a real (i) and an
* imaginary (q) part. The real part is essentially the cosine of the
* angle and the imaginary part is the sine of the angle. The returned
* values are scaled by 2^16 for precision. The range for theta is
* for -180 degrees to +180 degrees. Passed values outside this range are
* converted before doing the actual calculation.
*/
struct cordic_iq cordic_calc_iq(s32 theta);
#endif /* __CORDIC_H_ */
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