[PATCH] drm: Convert drm_atomic_helper_suspend/resume()
Souptick Joarder
jrdr.linux at gmail.com
Mon Aug 13 18:51:31 UTC 2018
Hi Laurent,
On Mon, Aug 13, 2018 at 10:46 PM, Liviu Dudau <liviu.dudau at arm.com> wrote:
> On Thu, Aug 02, 2018 at 03:25:24PM +0530, Souptick Joarder wrote:
>> On Wed, Aug 1, 2018 at 12:11 AM, Souptick Joarder <jrdr.linux at gmail.com> wrote:
>> > On Tue, Jul 31, 2018 at 4:04 PM, Liviu Dudau <liviu.dudau at arm.com> wrote:
>> >> Hi Souptick,
>> >>
>> >> On Tue, Jul 31, 2018 at 12:31:37AM +0530, Souptick Joarder wrote:
>> >>> convert drm_atomic_helper_suspend/resume() to use
>> >>> drm_mode_config_helper_suspend/resume().
>> >>>
>> >>> With this conversion, drm_fbdev_cma_set_suspend_unlocked()
>> >>> will left with no consumer. So this function can be removed.
>> >>>
>> >>> Signed-off-by: Souptick Joarder <jrdr.linux at gmail.com>
>> >>> Signed-off-by: Ajit Negi <ajitn.linux at gmail.com>
>> >>> ---
>> >>> drivers/gpu/drm/arm/hdlcd_drv.c | 26 ++------------------------
>> >>> drivers/gpu/drm/drm_fb_cma_helper.c | 18 ------------------
>> >>> drivers/gpu/drm/rcar-du/rcar_du_drv.c | 21 ++-------------------
>> >>> include/drm/drm_fb_cma_helper.h | 2 --
>> >>> 4 files changed, 4 insertions(+), 63 deletions(-)
>> >>>
>> >>> diff --git a/drivers/gpu/drm/arm/hdlcd_drv.c b/drivers/gpu/drm/arm/hdlcd_drv.c
>> >>> index feaa8bc..4e617e0 100644
>> >>> --- a/drivers/gpu/drm/arm/hdlcd_drv.c
>> >>> +++ b/drivers/gpu/drm/arm/hdlcd_drv.c
>> >>> @@ -427,37 +427,15 @@ static int hdlcd_remove(struct platform_device *pdev)
>> >>> static int __maybe_unused hdlcd_pm_suspend(struct device *dev)
>> >>> {
>> >>> struct drm_device *drm = dev_get_drvdata(dev);
>> >>> - struct hdlcd_drm_private *hdlcd = drm ? drm->dev_private : NULL;
>> >>>
>> >>> - if (!hdlcd)
>> >>> - return 0;
>> >>> -
>> >>> - drm_kms_helper_poll_disable(drm);
>> >>> - drm_fbdev_cma_set_suspend_unlocked(hdlcd->fbdev, 1);
>> >>> -
>> >>> - hdlcd->state = drm_atomic_helper_suspend(drm);
>> >>> - if (IS_ERR(hdlcd->state)) {
>> >>> - drm_fbdev_cma_set_suspend_unlocked(hdlcd->fbdev, 0);
>> >>> - drm_kms_helper_poll_enable(drm);
>> >>> - return PTR_ERR(hdlcd->state);
>> >>> - }
>> >>> -
>> >>> - return 0;
>> >>> + return drm_mode_config_helper_suspend(drm);
>> >>> }
>> >>>
>> >>> static int __maybe_unused hdlcd_pm_resume(struct device *dev)
>> >>> {
>> >>> struct drm_device *drm = dev_get_drvdata(dev);
>> >>> - struct hdlcd_drm_private *hdlcd = drm ? drm->dev_private : NULL;
>> >>> -
>> >>> - if (!hdlcd)
>> >>> - return 0;
>> >>>
>> >>> - drm_atomic_helper_resume(drm, hdlcd->state);
>> >>> - drm_fbdev_cma_set_suspend_unlocked(hdlcd->fbdev, 0);
>> >>> - drm_kms_helper_poll_enable(drm);
>> >>> -
>> >>> - return 0;
>> >>> + return drm_mode_config_helper_resume(drm);
>> >>> }
>> >>
>> >> This patch is similar to the one Noralf Trønnes submitted, and his is
>> >> also cleaning up the state variable in hdlcd_drm_private. The patch has
>> >> been queued as commit f69d9686e5d9 in git://linux-arm.org/linux-ld.git
>> >> for-upstream/hdlcd and I will send a pull request today for it.
>> >>
>> >> Best regards,
>> >> Liviu
>> >
>> > unable to clone this repository.
>> > can you please post the patchwork link ?
>
> Sorry, I was on holiday until today.
>
>>
>> Liviu, is commit f69d9686e5d9 in
>> git://linux-arm.org/linux-ld.gitfor-upstream/hdlcd
>> contains only changes in drivers/gpu/drm/arm/hdlcd_drv.c driver ??
>
> That's right, that tree only deals with HDLCD changes. The rest of the
> patch is up to you to upstream into drm-misc.
>
> Best regards,
> Liviu
As Liviu mentioned, drivers/gpu/drm/arm/hdlcd_drv.c is only changed,
so we left with drivers/gpu/drm/rcar-du/rcar_du_drv.c and remove
drm_fbdev_cma_set_suspend_unlocked().
Would you like to see both rcar_du driver change and removing
drm_fbdev_cma_set_suspend_unlocked() in a single commit ??
or 2 different commit ?
>
>>
>> >
>> >>
>> >>>
>> >>> static SIMPLE_DEV_PM_OPS(hdlcd_pm_ops, hdlcd_pm_suspend, hdlcd_pm_resume);
>> >>> diff --git a/drivers/gpu/drm/drm_fb_cma_helper.c b/drivers/gpu/drm/drm_fb_cma_helper.c
>> >>> index 186d00a..f604a84 100644
>> >>> --- a/drivers/gpu/drm/drm_fb_cma_helper.c
>> >>> +++ b/drivers/gpu/drm/drm_fb_cma_helper.c
>> >>> @@ -529,21 +529,3 @@ void drm_fbdev_cma_set_suspend(struct drm_fbdev_cma *fbdev_cma, bool state)
>> >>> drm_fb_helper_set_suspend(&fbdev_cma->fb_helper, state);
>> >>> }
>> >>> EXPORT_SYMBOL(drm_fbdev_cma_set_suspend);
>> >>> -
>> >>> -/**
>> >>> - * drm_fbdev_cma_set_suspend_unlocked - wrapper around
>> >>> - * drm_fb_helper_set_suspend_unlocked
>> >>> - * @fbdev_cma: The drm_fbdev_cma struct, may be NULL
>> >>> - * @state: desired state, zero to resume, non-zero to suspend
>> >>> - *
>> >>> - * Calls drm_fb_helper_set_suspend, which is a wrapper around
>> >>> - * fb_set_suspend implemented by fbdev core.
>> >>> - */
>> >>> -void drm_fbdev_cma_set_suspend_unlocked(struct drm_fbdev_cma *fbdev_cma,
>> >>> - bool state)
>> >>> -{
>> >>> - if (fbdev_cma)
>> >>> - drm_fb_helper_set_suspend_unlocked(&fbdev_cma->fb_helper,
>> >>> - state);
>> >>> -}
>> >>> -EXPORT_SYMBOL(drm_fbdev_cma_set_suspend_unlocked);
>> >>> diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.c b/drivers/gpu/drm/rcar-du/rcar_du_drv.c
>> >>> index 02aee6c..288220f 100644
>> >>> --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.c
>> >>> +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.c
>> >>> @@ -357,32 +357,15 @@ static void rcar_du_lastclose(struct drm_device *dev)
>> >>> static int rcar_du_pm_suspend(struct device *dev)
>> >>> {
>> >>> struct rcar_du_device *rcdu = dev_get_drvdata(dev);
>> >>> - struct drm_atomic_state *state;
>> >>>
>> >>> - drm_kms_helper_poll_disable(rcdu->ddev);
>> >>> - drm_fbdev_cma_set_suspend_unlocked(rcdu->fbdev, true);
>> >>> -
>> >>> - state = drm_atomic_helper_suspend(rcdu->ddev);
>> >>> - if (IS_ERR(state)) {
>> >>> - drm_fbdev_cma_set_suspend_unlocked(rcdu->fbdev, false);
>> >>> - drm_kms_helper_poll_enable(rcdu->ddev);
>> >>> - return PTR_ERR(state);
>> >>> - }
>> >>> -
>> >>> - rcdu->suspend_state = state;
>> >>> -
>> >>> - return 0;
>> >>> + return drm_mode_config_helper_suspend(rcdu->ddev);
>> >>> }
>> >>>
>> >>> static int rcar_du_pm_resume(struct device *dev)
>> >>> {
>> >>> struct rcar_du_device *rcdu = dev_get_drvdata(dev);
>> >>>
>> >>> - drm_atomic_helper_resume(rcdu->ddev, rcdu->suspend_state);
>> >>> - drm_fbdev_cma_set_suspend_unlocked(rcdu->fbdev, false);
>> >>> - drm_kms_helper_poll_enable(rcdu->ddev);
>> >>> -
>> >>> - return 0;
>> >>> + return drm_mode_config_helper_resume(rcdu->ddev);
>> >>> }
>> >>> #endif
>> >>>
>> >>> diff --git a/include/drm/drm_fb_cma_helper.h b/include/drm/drm_fb_cma_helper.h
>> >>> index d532f88a..15c4569 100644
>> >>> --- a/include/drm/drm_fb_cma_helper.h
>> >>> +++ b/include/drm/drm_fb_cma_helper.h
>> >>> @@ -33,8 +33,6 @@ struct drm_fbdev_cma *drm_fbdev_cma_init(struct drm_device *dev,
>> >>> void drm_fbdev_cma_restore_mode(struct drm_fbdev_cma *fbdev_cma);
>> >>> void drm_fbdev_cma_hotplug_event(struct drm_fbdev_cma *fbdev_cma);
>> >>> void drm_fbdev_cma_set_suspend(struct drm_fbdev_cma *fbdev_cma, bool state);
>> >>> -void drm_fbdev_cma_set_suspend_unlocked(struct drm_fbdev_cma *fbdev_cma,
>> >>> - bool state);
>> >>>
>> >>> struct drm_gem_cma_object *drm_fb_cma_get_gem_obj(struct drm_framebuffer *fb,
>> >>> unsigned int plane);
>> >>> --
>> >>> 1.9.1
>> >>>
>> >>
>> >> --
>> >> ====================
>> >> | I would like to |
>> >> | fix the world, |
>> >> | but they're not |
>> >> | giving me the |
>> >> \ source code! /
>> >> ---------------
>> >> ¯\_(ツ)_/¯
>
> --
> ====================
> | I would like to |
> | fix the world, |
> | but they're not |
> | giving me the |
> \ source code! /
> ---------------
> ¯\_(ツ)_/¯
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