On 10.03.2017 05:32, Sean Paul wrote:
> From: Douglas Anderson <diand...@chromium.org>
>
> Some of the platform-specific stuff in rockchip_dp_poweron() needs to
> happen before the generic code. Some needs to happen after. Let's
> split the callback in two.
>
> Specifically we can't start doing PSR work until _after_ the whole
> controller is up, so don't set the enable until the end.
>
> Cc: Kristian H. Kristensen <hoegsb...@chromium.org>
> Signed-off-by: Douglas Anderson <diand...@chromium.org>
> [seanpaul added exynos change]
> Signed-off-by: Sean Paul <seanp...@chromium.org>
Sounds like mid-layer issue. I do not know bridge details so I can only
guess but probably passing full control to drivers and call generic code
via helpers could be better solution.
Anyway it can be done later.
For now:
Reviewed-by: Andrzej Hajda <a.ha...@samsung.com>
Regards
Andrzej
> ---
> drivers/gpu/drm/bridge/analogix/analogix_dp_core.c | 7 +++++--
> drivers/gpu/drm/exynos/exynos_dp.c | 2 +-
> drivers/gpu/drm/rockchip/analogix_dp-rockchip.c | 12 ++++++++++--
> include/drm/bridge/analogix_dp.h | 3 ++-
> 4 files changed, 18 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
> b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
> index a05bc0271188..bc9a0a28ab1d 100644
> --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
> +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
> @@ -1254,8 +1254,8 @@ static int analogix_dp_set_bridge(struct
> analogix_dp_device *dp)
> goto out_dp_clk_pre;
> }
>
> - if (dp->plat_data->power_on)
> - dp->plat_data->power_on(dp->plat_data);
> + if (dp->plat_data->power_on_start)
> + dp->plat_data->power_on_start(dp->plat_data);
>
> phy_power_on(dp->phy);
>
> @@ -1278,6 +1278,9 @@ static int analogix_dp_set_bridge(struct
> analogix_dp_device *dp)
> goto out_dp_init;
> }
>
> + if (dp->plat_data->power_on_end)
> + dp->plat_data->power_on_end(dp->plat_data);
> +
> enable_irq(dp->irq);
> return 0;
>
> diff --git a/drivers/gpu/drm/exynos/exynos_dp.c
> b/drivers/gpu/drm/exynos/exynos_dp.c
> index 1ef0be338b85..6b79c3b3802f 100644
> --- a/drivers/gpu/drm/exynos/exynos_dp.c
> +++ b/drivers/gpu/drm/exynos/exynos_dp.c
> @@ -168,7 +168,7 @@ static int exynos_dp_bind(struct device *dev, struct
> device *master, void *data)
> dp->drm_dev = drm_dev;
>
> dp->plat_data.dev_type = EXYNOS_DP;
> - dp->plat_data.power_on = exynos_dp_poweron;
> + dp->plat_data.power_on_start = exynos_dp_poweron;
> dp->plat_data.power_off = exynos_dp_poweroff;
> dp->plat_data.attach = exynos_dp_bridge_attach;
> dp->plat_data.get_modes = exynos_dp_get_modes;
> diff --git a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
> b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
> index 14f68e792e6f..07dd09e1e32f 100644
> --- a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
> +++ b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
> @@ -127,7 +127,7 @@ static int rockchip_dp_pre_init(struct rockchip_dp_device
> *dp)
> return 0;
> }
>
> -static int rockchip_dp_poweron(struct analogix_dp_plat_data *plat_data)
> +static int rockchip_dp_poweron_start(struct analogix_dp_plat_data *plat_data)
> {
> struct rockchip_dp_device *dp = to_dp(plat_data);
> int ret;
> @@ -145,6 +145,13 @@ static int rockchip_dp_poweron(struct
> analogix_dp_plat_data *plat_data)
> return ret;
> }
>
> + return ret;
> +}
> +
> +static int rockchip_dp_poweron_end(struct analogix_dp_plat_data *plat_data)
> +{
> + struct rockchip_dp_device *dp = to_dp(plat_data);
> +
> return rockchip_drm_psr_activate(&dp->encoder);
> }
>
> @@ -399,7 +406,8 @@ static int rockchip_dp_bind(struct device *dev, struct
> device *master,
> dp->plat_data.encoder = &dp->encoder;
>
> dp->plat_data.dev_type = dp->data->chip_type;
> - dp->plat_data.power_on = rockchip_dp_poweron;
> + dp->plat_data.power_on_start = rockchip_dp_poweron_start;
> + dp->plat_data.power_on_end = rockchip_dp_poweron_end;
> dp->plat_data.power_off = rockchip_dp_powerdown;
> dp->plat_data.get_modes = rockchip_dp_get_modes;
> dp->plat_data.cleanup = rockchip_dp_cleanup;
> diff --git a/include/drm/bridge/analogix_dp.h
> b/include/drm/bridge/analogix_dp.h
> index c079ca1ffc76..1049ee56ae76 100644
> --- a/include/drm/bridge/analogix_dp.h
> +++ b/include/drm/bridge/analogix_dp.h
> @@ -30,7 +30,8 @@ struct analogix_dp_plat_data {
> struct drm_encoder *encoder;
> struct drm_connector *connector;
>
> - int (*power_on)(struct analogix_dp_plat_data *);
> + int (*power_on_start)(struct analogix_dp_plat_data *);
> + int (*power_on_end)(struct analogix_dp_plat_data *);
> int (*power_off)(struct analogix_dp_plat_data *);
> int (*attach)(struct analogix_dp_plat_data *, struct drm_bridge *,
> struct drm_connector *);
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