On 9 June 2011 17:58, Kan-Ru Chen <ka...@0xlab.org> wrote:
> After resume the HDMI/DVI output was still blank. It turns out that
> framebuffers have to be reconfigured so the output is activated again.
>
Hi Andy,
Can you review Kan-Ru's patch? Since Android assumes full-functional
PM, it is vital to improve the resuming behavior of OMAP framebuffer.
Thanks,
-jserv
> ---
> drivers/video/omap2/omapfb/omapfb-main.c | 33
> ++++++++++++++++++++++++++++++
> 1 files changed, 33 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/video/omap2/omapfb/omapfb-main.c
> b/drivers/video/omap2/omapfb/omapfb-main.c
> index 2bd90ca..a5a0725 100644
> --- a/drivers/video/omap2/omapfb/omapfb-main.c
> +++ b/drivers/video/omap2/omapfb/omapfb-main.c
> @@ -30,6 +30,7 @@
> #include <linux/platform_device.h>
> #include <linux/omapfb.h>
> #include <linux/console.h>
> +#include <linux/pm.h>
>
> #include <plat/display.h>
> #include <plat/vram.h>
> @@ -2274,6 +2275,37 @@ static int omapfb_parse_def_modes(struct
> omapfb2_device *fbdev)
> return r;
> }
>
> +#ifdef CONFIG_PM
> +static int omapfb_suspend(struct device *dev)
> +{
> + return 0;
> +}
> +
> +static int omapfb_resume(struct device *dev)
> +{
> + struct platform_device *pdev = to_platform_device(dev);
> + struct omapfb2_device *fbdev = platform_get_drvdata(pdev);
> + int i;
> +
> + if (fbdev != NULL) {
> + for (i = 0; i < fbdev->num_fbs; i++) {
> + omapfb_set_par(fbdev->fbs[i]);
> + }
> + }
> + return 0;
> +}
> +#else
> +#define omapfb_suspend NULL
> +#define omapfb_resume NULL
> +#endif
> +
> +static const struct dev_pm_ops omapfb_pm_ops = {
> + .suspend = omapfb_suspend,
> + .resume = omapfb_resume,
> + .poweroff = omapfb_suspend,
> + .restore = omapfb_resume,
> +};
> +
> static int omapfb_probe(struct platform_device *pdev)
> {
> struct omapfb2_device *fbdev = NULL;
> @@ -2440,6 +2472,7 @@ static struct platform_driver omapfb_driver = {
> .driver = {
> .name = "omapfb",
> .owner = THIS_MODULE,
> + .pm = &omapfb_pm_ops,
> },
> };
>
> --
> 1.7.5.3
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