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SubjectRe: [PATCH v1] drm/kms/mode: added a new helper for calculating videomode from crtc's display mode
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On Thu, May 03, 2018 at 11:36:39 +0100, Liviu Dudau wrote:
> On Thu, May 03, 2018 at 11:28:37AM +0530, Satendra Singh Thakur wrote:
> > 1.
> > -Added a new helper drm_display_mode_crtc_to_videomode
> > -This helper calculates mode parameters like
> > horizontal front_porch, back_porch, sync length
> > vertical front_porch, back_porch, sync length
> > using crtc_* fields of struct drm_display_mode
> > -It uses following fields of crtc mode
> > horizontal sync start/end, active and total length
> > vertical sync start/end, active and total length
> > 2.
> > -Most of the driver use user-supplied mode for calculating videomode
> > -However, few drivers use HW (crtc) mode for calculating videomode
> > -This helper will be useful for such drivers
> > 3.
> > -Currently following drivers will be using this new helper
> > -arm hdlcd
> > -atmel hlcdc
> > -exynos 5433 decon
> > -exynos7 decon
> > -exynos fimd
> > 4.
> > -This patch removes related duplicate code from above mentioned drivers
> >
> > Signed-off-by: Satendra Singh Thakur <satendra.t@samsung.com>
> > Cc: Madhur Verma <madhur.verma@samsung.com>
> > Cc: Hemanshu Srivastava <hemanshu.s@samsung.com>
> > ---
> > drivers/gpu/drm/arm/hdlcd_crtc.c | 8 +-------
> > drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c | 7 +------
> > drivers/gpu/drm/drm_modes.c | 20 ++++++++++++++++++++
> > drivers/gpu/drm/exynos/exynos5433_drm_decon.c | 22 ++++++++++------------
> > drivers/gpu/drm/exynos/exynos7_drm_decon.c | 23 ++++++++++-------------
> > drivers/gpu/drm/exynos/exynos_drm_fimd.c | 22 +++++++++-------------
> > include/drm/drm_modes.h | 2 ++
> > 7 files changed, 53 insertions(+), 51 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/arm/hdlcd_crtc.c b/drivers/gpu/drm/arm/hdlcd_crtc.c
> > index cf5cbd6..d20e471 100644
> > --- a/drivers/gpu/drm/arm/hdlcd_crtc.c
> > +++ b/drivers/gpu/drm/arm/hdlcd_crtc.c
> > @@ -130,13 +130,7 @@ static void hdlcd_crtc_mode_set_nofb(struct drm_crtc *crtc)
> > struct videomode vm;
> > unsigned int polarities, err;
> >
> > - vm.vfront_porch = m->crtc_vsync_start - m->crtc_vdisplay;
> > - vm.vback_porch = m->crtc_vtotal - m->crtc_vsync_end;
> > - vm.vsync_len = m->crtc_vsync_end - m->crtc_vsync_start;
> > - vm.hfront_porch = m->crtc_hsync_start - m->crtc_hdisplay;
> > - vm.hback_porch = m->crtc_htotal - m->crtc_hsync_end;
> > - vm.hsync_len = m->crtc_hsync_end - m->crtc_hsync_start;
> > -
> > + drm_display_mode_crtc_to_videomode(m, &vm);
> > polarities = HDLCD_POLARITY_DATAEN | HDLCD_POLARITY_DATA;
> >
> > if (m->flags & DRM_MODE_FLAG_PHSYNC)
>
> For the HDLCD part:
>
> Acked-by: Liviu Dudau <liviu.dudau@arm.com>
>
> If you're not sending the final version through drm-misc then let me
> know and I can pick up the HDLCD part separately.
>
> Best regards,
> Liviu
>
>

Hi Mr Liviu,
Thanks for accepting the patch.
I don't know how to send patch through drm-misc.
You may please go ahead and pick HDLCD part separately.

Thanks
-Satendra

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