[PATCH 0/8] Cleanup CRTC .enable()/.disable() cargo-cult

[Daniel Vetter]

On Tue, Jun 27, 2017 at 11:38:35PM +0300, Laurent Pinchart wrote:
> Hello,
> 
> The atomic helpers favour the .enable() and .atomic_disable() CRTC helper
> operations, but still support the legacy .prepare(), .commit(), .disable() and
> .dpms() operations. Some drivers have been updated, but most still use various
> combination of new and legacy operations, leading to confusion among new
> developers when they read the code.
> 
> To avoid cargo-cult use of the legacy operations, this patch series
> mass-updates all atomic drivers to use the new CRTC atomic helper operations.
> 
> In addition, patch 7/8 adds an old state pointer argument to the CRTC
> .enable() helper operation, and rename it to .atomic_enable() for consistency
> with .atomic_disable(). These two changes could have been split in separate
> patch, but as they are simple and touch the same large number of files,
> keeping the two changes as one is simpler and less error-prone.
> 
> The patches are based on top of the drm-misc-next branch and have been
> compile-tested only except for rcar-du-drm that has been tested on real
> hardware. Given the high risk of conflicts I would like to get them merged as
> soon as possible (after, of course, proper review and testing).

Makes sense, so I went ahead and pulled in patches 1-6. I think 7&8 need a
bit more soaking to gather acks, if only for aweareness. Plus a bit more
kernel-doc polish imo.
-Daniel

> 
> Laurent Pinchart (8):
>   drm: arcpgu: Remove CRTC .commit() helper operation
>   drm: arcpgu: Remove CRTC .prepare() helper operation
>   drm: qxl: Remove unused CRTC .dpms() helper operation
>   drm: qxl: Replace CRTC .commit() helper operation with .enable()
>   drm: vmwgfx: Remove unneeded CRTC .prepare() helper operation
>   drm: vmwgfx: Replace CRTC .commit() helper operation with .enable()
>   drm: Add old state pointer to CRTC .enable() helper function
>   drm: Convert atomic drivers from CRTC .disable() to .atomic_disable()
> 
>  drivers/gpu/drm/arc/arcpgu_crtc.c               | 12 ++++----
>  drivers/gpu/drm/arm/hdlcd_crtc.c                | 10 ++++---
>  drivers/gpu/drm/arm/malidp_crtc.c               | 10 ++++---
>  drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c  | 10 ++++---
>  drivers/gpu/drm/drm_atomic_helper.c             |  7 +++--
>  drivers/gpu/drm/drm_simple_kms_helper.c         | 10 ++++---
>  drivers/gpu/drm/exynos/exynos_drm_crtc.c        | 10 ++++---
>  drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c      |  5 ++--
>  drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c  | 10 ++++---
>  drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c | 10 ++++---
>  drivers/gpu/drm/imx/ipuv3-crtc.c                |  5 ++--
>  drivers/gpu/drm/mediatek/mtk_drm_crtc.c         | 10 ++++---
>  drivers/gpu/drm/meson/meson_crtc.c              | 10 ++++---
>  drivers/gpu/drm/msm/mdp/mdp4/mdp4_crtc.c        | 10 ++++---
>  drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c        | 10 ++++---
>  drivers/gpu/drm/omapdrm/omap_crtc.c             | 10 ++++---
>  drivers/gpu/drm/qxl/qxl_display.c               | 15 ++++------
>  drivers/gpu/drm/rcar-du/rcar_du_crtc.c          | 10 ++++---
>  drivers/gpu/drm/rockchip/rockchip_drm_vop.c     | 10 ++++---
>  drivers/gpu/drm/sti/sti_crtc.c                  | 10 ++++---
>  drivers/gpu/drm/stm/ltdc.c                      | 10 ++++---
>  drivers/gpu/drm/sun4i/sun4i_crtc.c              | 10 ++++---
>  drivers/gpu/drm/tegra/dc.c                      | 10 ++++---
>  drivers/gpu/drm/tilcdc/tilcdc_crtc.c            | 16 +++++++++--
>  drivers/gpu/drm/vc4/vc4_crtc.c                  | 10 ++++---
>  drivers/gpu/drm/virtio/virtgpu_display.c        | 10 ++++---
>  drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c             | 27 ++++++------------
>  drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c            | 14 +++++----
>  drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c            | 10 ++++---
>  drivers/gpu/drm/zte/zx_vou.c                    | 10 ++++---
>  include/drm/drm_modeset_helper_vtables.h        | 38 +++++++++++++------------
>  31 files changed, 204 insertions(+), 155 deletions(-)
> 
> -- 
> Regards,
> 
> Laurent Pinchart
> 
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-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch