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From: Emil Velikov <emil.l.velikov@gmail.com>
To: Ville Syrjala <ville.syrjala@linux.intel.com>
Cc: Intel Graphics Development <intel-gfx@lists.freedesktop.org>,
	ML dri-devel <dri-devel@lists.freedesktop.org>
Subject: Re: [Intel-gfx] [PATCH 01/12] drm: Nuke mode->hsync
Date: Thu, 20 Feb 2020 10:55:18 +0000	[thread overview]
Message-ID: <CACvgo53w0+anXrf0fSGkdAx8gctMFzLh311n74tBCQ7qt+_--A@mail.gmail.com> (raw)
In-Reply-To: <20200219203544.31013-2-ville.syrjala@linux.intel.com>

On Wed, 19 Feb 2020 at 20:35, Ville Syrjala
<ville.syrjala@linux.intel.com> wrote:
>
> From: Ville Syrjälä <ville.syrjala@linux.intel.com>
>
> Let's just calculate the hsync rate on demand. No point in wasting
> space storing it and risking the cached value getting out of sync
> with reality.
>
> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
> ---
>  drivers/gpu/drm/drm_modes.c                  | 14 ++------------
>  drivers/gpu/drm/i915/display/intel_display.c |  1 -
>  include/drm/drm_modes.h                      | 10 ----------
>  3 files changed, 2 insertions(+), 23 deletions(-)
>
> diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
> index d4d64518e11b..fe7e872a6239 100644
> --- a/drivers/gpu/drm/drm_modes.c
> +++ b/drivers/gpu/drm/drm_modes.c
> @@ -752,24 +752,14 @@ EXPORT_SYMBOL(drm_mode_set_name);
>   * @mode: mode
>   *
>   * Returns:
> - * @modes's hsync rate in kHz, rounded to the nearest integer. Calculates the
> - * value first if it is not yet set.
> + * @modes's hsync rate in kHz, rounded to the nearest integer
>   */
>  int drm_mode_hsync(const struct drm_display_mode *mode)
>  {
> -       unsigned int calc_val;
> -
> -       if (mode->hsync)
> -               return mode->hsync;
> -
>         if (mode->htotal <= 0)
>                 return 0;
>
> -       calc_val = (mode->clock * 1000) / mode->htotal; /* hsync in Hz */
> -       calc_val += 500;                                /* round to 1000Hz */
> -       calc_val /= 1000;                               /* truncate to kHz */
> -
> -       return calc_val;
> +       return DIV_ROUND_CLOSEST(mode->clock, mode->htotal);
>  }
>  EXPORT_SYMBOL(drm_mode_hsync);
>
> diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
> index ee7d54ccd3e6..fab914819489 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_display.c
> @@ -8867,7 +8867,6 @@ void intel_mode_from_pipe_config(struct drm_display_mode *mode,
>
>         mode->clock = pipe_config->hw.adjusted_mode.crtc_clock;
>
> -       mode->hsync = drm_mode_hsync(mode);

With this gone, we could make drm_mode_hsync() internal and move it to
drm_foo_internal.h.
Making it obvious that drivers, should be copy/pasting it.

Regardless, the patch is:
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

-Emil
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  reply	other threads:[~2020-02-20 10:55 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-19 20:35 [PATCH 00/12] drm: Put drm_display_mode on diet Ville Syrjala
2020-02-19 20:35 ` [PATCH 01/12] drm: Nuke mode->hsync Ville Syrjala
2020-02-20 10:55   ` Emil Velikov [this message]
2020-02-21 16:04     ` [Intel-gfx] " Ville Syrjälä
2020-02-21 16:55       ` Emil Velikov
2020-02-19 20:35 ` [PATCH 02/12] drm/exynos: Use mode->clock instead of reverse calculating it from the vrefresh Ville Syrjala
2020-02-20 10:56   ` Emil Velikov
2020-02-25  0:49     ` Inki Dae
2020-02-19 20:35 ` [PATCH 03/12] drm/i915: Introduce some local intel_dp variables Ville Syrjala
2020-02-20 11:13   ` [Intel-gfx] " Emil Velikov
2020-02-19 20:35 ` [PATCH 04/12] drm: Nuke mode->vrefresh Ville Syrjala
2020-02-20 12:00   ` Emil Velikov
2020-02-22 12:32   ` Sam Ravnborg
2020-02-24 13:14     ` Ville Syrjälä
2020-02-24 14:14   ` Andrzej Hajda
2020-02-25 11:21     ` Ville Syrjälä
2020-02-25 15:19       ` Andrzej Hajda
2020-02-25 15:45         ` Ville Syrjälä
2020-02-25 19:27           ` Ville Syrjälä
2020-02-25 21:52             ` Linus Walleij
2020-02-19 20:35 ` [PATCH 05/12] drm/msm/dpu: Stop copying around mode->private_flags Ville Syrjala
2020-02-20 11:24   ` Emil Velikov
2020-02-20 15:33     ` Ville Syrjälä
2020-02-20 18:14       ` Daniel Vetter
2020-02-19 20:35 ` [PATCH 06/12] drm: Shrink {width,height}_mm to u16 Ville Syrjala
2020-02-20 12:48   ` [Intel-gfx] " Emil Velikov
2020-02-19 20:35 ` [PATCH 07/12] drm: Shrink mode->type to u8 Ville Syrjala
2020-02-20 18:17   ` [Intel-gfx] " Daniel Vetter
2020-02-19 20:35 ` [PATCH 08/12] drm: Make mode->flags u32 Ville Syrjala
2020-02-19 20:35 ` [PATCH 09/12] drm: Shrink drm_display_mode timings Ville Syrjala
2020-02-20 18:19   ` [Intel-gfx] " Daniel Vetter
2020-02-20 18:47     ` Ville Syrjälä
2020-02-21 16:13   ` Sam Ravnborg
2020-02-21 17:27   ` Sam Ravnborg
2020-02-24 13:06     ` Ville Syrjälä
2020-02-19 20:35 ` [PATCH 10/12] drm: Flatten drm_mode_vrefresh() Ville Syrjala
2020-02-19 20:35 ` [PATCH 11/12] drm: Shrink mode->private_flags Ville Syrjala
2020-02-21 16:15   ` Sam Ravnborg
2020-02-24 13:23     ` Ville Syrjälä
2020-02-19 20:35 ` [PATCH 12/12] drm: pahole struct drm_display_mode Ville Syrjala
2020-02-20 12:53   ` Emil Velikov
2020-02-19 21:18 ` [PATCH 00/12] drm: Put drm_display_mode on diet Ville Syrjälä
2020-02-20 13:21 ` Emil Velikov
2020-02-20 14:27   ` Ville Syrjälä
2020-02-20 15:34     ` [Intel-gfx] " Ville Syrjälä
2020-02-21 11:32       ` Jani Nikula
2020-02-21 11:43         ` Ville Syrjälä
2020-02-21 14:42           ` Daniel Vetter
2020-02-21 15:40             ` Ville Syrjälä
2020-02-21 16:09               ` Ville Syrjälä
2020-02-21 17:16                 ` Daniel Vetter
2020-02-21 17:49                   ` Ville Syrjälä
2020-02-20 17:01     ` Emil Velikov
2020-02-21 15:09 ` Linus Walleij

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