[PATCH v2] drm: hdlcd: Update PM code to save/restore console.
Noralf Trønnes
noralf at tronnes.org
Mon Jun 19 15:47:07 UTC 2017
Den 19.06.2017 15.53, skrev Liviu Dudau:
> Update the PM code to suspend/resume the fbdev_cma console.
>
> Changelog:
> - v2: Use drm_fbdev_cma_set_suspend_unlocked() function for taking the
> console lock (suggested by Noralf Trønnes <noralf at tronnes.org>)
> - v1: Initial submission [1]
>
>
> [1] https://lists.freedesktop.org/archives/dri-devel/2017-June/144502.html
>
> Signed-off-by: Liviu Dudau <Liviu.Dudau at arm.com>
> ---
> drivers/gpu/drm/arm/hdlcd_drv.c | 5 ++++-
> 1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/arm/hdlcd_drv.c b/drivers/gpu/drm/arm/hdlcd_drv.c
> index d3da87fbd85a..11ecda211f7f 100644
> --- a/drivers/gpu/drm/arm/hdlcd_drv.c
> +++ b/drivers/gpu/drm/arm/hdlcd_drv.c
> @@ -13,6 +13,7 @@
> #include <linux/spinlock.h>
> #include <linux/clk.h>
> #include <linux/component.h>
> +#include <linux/console.h>
This include isn't necessary now.
Noralf.
> #include <linux/list.h>
> #include <linux/of_graph.h>
> #include <linux/of_reserved_mem.h>
> @@ -435,9 +436,11 @@ static int __maybe_unused hdlcd_pm_suspend(struct device *dev)
> 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);
> }
> @@ -454,8 +457,8 @@ static int __maybe_unused hdlcd_pm_resume(struct device *dev)
> return 0;
>
> drm_atomic_helper_resume(drm, hdlcd->state);
> + drm_fbdev_cma_set_suspend_unlocked(hdlcd->fbdev, 0);
> drm_kms_helper_poll_enable(drm);
> - pm_runtime_set_active(dev);
>
> return 0;
> }
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