Re: [PATCH v3 56/56] drm/omap: remove dss_mgr_ops

Laurent Pinchart
2020-11-09T11:18:10Z

Hi Tomi,

Thank you for the patch.

On Thu, Nov 05, 2020 at 02:03:33PM +0200, Tomi Valkeinen wrote:
> dss_mgr_ops was needed with the multi-module architecture, but is no
> longer needed. We can thus remove it and use direct calls.
>
> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

> ---
> drivers/gpu/drm/omapdrm/dss/dss.h | 1 -
> drivers/gpu/drm/omapdrm/dss/omapdss.h | 42 +++++++++++----------------
> drivers/gpu/drm/omapdrm/dss/output.c | 33 +++++----------------
> drivers/gpu/drm/omapdrm/omap_crtc.c | 38 +++++-------------------
> drivers/gpu/drm/omapdrm/omap_crtc.h | 2 --
> drivers/gpu/drm/omapdrm/omap_drv.c | 4 +--
> 6 files changed, 33 insertions(+), 87 deletions(-)
>
> diff --git a/drivers/gpu/drm/omapdrm/dss/dss.h b/drivers/gpu/drm/omapdrm/dss/dss.h
> index 96f702314c8c..a547527bb2f3 100644
> --- a/drivers/gpu/drm/omapdrm/dss/dss.h
> +++ b/drivers/gpu/drm/omapdrm/dss/dss.h
> @@ -257,7 +257,6 @@ struct dss_device {
> struct dss_pll *video2_pll;
>
> struct dispc_device *dispc;
> - const struct dss_mgr_ops *mgr_ops;
> struct omap_drm_private *mgr_ops_priv;
> };
>
> diff --git a/drivers/gpu/drm/omapdrm/dss/omapdss.h b/drivers/gpu/drm/omapdrm/dss/omapdss.h
> index fba5f05e5e48..9df322ca467d 100644
> --- a/drivers/gpu/drm/omapdrm/dss/omapdss.h
> +++ b/drivers/gpu/drm/omapdrm/dss/omapdss.h
> @@ -338,31 +338,23 @@ enum dss_writeback_channel {
> DSS_WB_LCD3_MGR = 7,
> };
>
> -struct dss_mgr_ops {
> - void (*start_update)(struct omap_drm_private *priv,
> - enum omap_channel channel);
> - int (*enable)(struct omap_drm_private *priv,
> - enum omap_channel channel);
> - void (*disable)(struct omap_drm_private *priv,
> - enum omap_channel channel);
> - void (*set_timings)(struct omap_drm_private *priv,
> - enum omap_channel channel,
> - const struct videomode *vm);
> - void (*set_lcd_config)(struct omap_drm_private *priv,
> - enum omap_channel channel,
> - const struct dss_lcd_mgr_config *config);
> - int (*register_framedone_handler)(struct omap_drm_private *priv,
> - enum omap_channel channel,
> - void (*handler)(void *), void *data);
> - void (*unregister_framedone_handler)(struct omap_drm_private *priv,
> - enum omap_channel channel,
> - void (*handler)(void *), void *data);
> -};
> -
> -int dss_install_mgr_ops(struct dss_device *dss,
> - const struct dss_mgr_ops *mgr_ops,
> - struct omap_drm_private *priv);
> -void dss_uninstall_mgr_ops(struct dss_device *dss);
> +void omap_crtc_dss_start_update(struct omap_drm_private *priv,
> + enum omap_channel channel);
> +void omap_crtc_set_enabled(struct drm_crtc *crtc, bool enable);
> +int omap_crtc_dss_enable(struct omap_drm_private *priv, enum omap_channel channel);
> +void omap_crtc_dss_disable(struct omap_drm_private *priv, enum omap_channel channel);
> +void omap_crtc_dss_set_timings(struct omap_drm_private *priv,
> + enum omap_channel channel,
> + const struct videomode *vm);
> +void omap_crtc_dss_set_lcd_config(struct omap_drm_private *priv,
> + enum omap_channel channel,
> + const struct dss_lcd_mgr_config *config);
> +int omap_crtc_dss_register_framedone(
> + struct omap_drm_private *priv, enum omap_channel channel,
> + void (*handler)(void *), void *data);
> +void omap_crtc_dss_unregister_framedone(
> + struct omap_drm_private *priv, enum omap_channel channel,
> + void (*handler)(void *), void *data);
>
> void dss_mgr_set_timings(struct omap_dss_device *dssdev,
> const struct videomode *vm);
> diff --git a/drivers/gpu/drm/omapdrm/dss/output.c b/drivers/gpu/drm/omapdrm/dss/output.c
> index 7a14d2b5b2f7..2121c947947b 100644
> --- a/drivers/gpu/drm/omapdrm/dss/output.c
> +++ b/drivers/gpu/drm/omapdrm/dss/output.c
> @@ -81,54 +81,35 @@ void omapdss_device_cleanup_output(struct omap_dss_device *out)
> out->next_bridge : out->bridge);
> }
>
> -int dss_install_mgr_ops(struct dss_device *dss,
> - const struct dss_mgr_ops *mgr_ops,
> - struct omap_drm_private *priv)
> -{
> - if (dss->mgr_ops)
> - return -EBUSY;
> -
> - dss->mgr_ops = mgr_ops;
> - dss->mgr_ops_priv = priv;
> -
> - return 0;
> -}
> -
> -void dss_uninstall_mgr_ops(struct dss_device *dss)
> -{
> - dss->mgr_ops = NULL;
> - dss->mgr_ops_priv = NULL;
> -}
> -
> void dss_mgr_set_timings(struct omap_dss_device *dssdev,
> const struct videomode *vm)
> {
> - dssdev->dss->mgr_ops->set_timings(dssdev->dss->mgr_ops_priv,
> + omap_crtc_dss_set_timings(dssdev->dss->mgr_ops_priv,
> dssdev->dispc_channel, vm);
> }
>
> void dss_mgr_set_lcd_config(struct omap_dss_device *dssdev,
> const struct dss_lcd_mgr_config *config)
> {
> - dssdev->dss->mgr_ops->set_lcd_config(dssdev->dss->mgr_ops_priv,
> + omap_crtc_dss_set_lcd_config(dssdev->dss->mgr_ops_priv,
> dssdev->dispc_channel, config);
> }
>
> int dss_mgr_enable(struct omap_dss_device *dssdev)
> {
> - return dssdev->dss->mgr_ops->enable(dssdev->dss->mgr_ops_priv,
> + return omap_crtc_dss_enable(dssdev->dss->mgr_ops_priv,
> dssdev->dispc_channel);
> }
>
> void dss_mgr_disable(struct omap_dss_device *dssdev)
> {
> - dssdev->dss->mgr_ops->disable(dssdev->dss->mgr_ops_priv,
> + omap_crtc_dss_disable(dssdev->dss->mgr_ops_priv,
> dssdev->dispc_channel);
> }
>
> void dss_mgr_start_update(struct omap_dss_device *dssdev)
> {
> - dssdev->dss->mgr_ops->start_update(dssdev->dss->mgr_ops_priv,
> + omap_crtc_dss_start_update(dssdev->dss->mgr_ops_priv,
> dssdev->dispc_channel);
> }
>
> @@ -137,7 +118,7 @@ int dss_mgr_register_framedone_handler(struct omap_dss_device *dssdev,
> {
> struct dss_device *dss = dssdev->dss;
>
> - return dss->mgr_ops->register_framedone_handler(dss->mgr_ops_priv,
> + return omap_crtc_dss_register_framedone(dss->mgr_ops_priv,
> dssdev->dispc_channel,
> handler, data);
> }
> @@ -147,7 +128,7 @@ void dss_mgr_unregister_framedone_handler(struct omap_dss_device *dssdev,
> {
> struct dss_device *dss = dssdev->dss;
>
> - dss->mgr_ops->unregister_framedone_handler(dss->mgr_ops_priv,
> + omap_crtc_dss_unregister_framedone(dss->mgr_ops_priv,
> dssdev->dispc_channel,
> handler, data);
> }
> diff --git a/drivers/gpu/drm/omapdrm/omap_crtc.c b/drivers/gpu/drm/omapdrm/omap_crtc.c
> index 0bf5cef579b5..e3259338afb9 100644
> --- a/drivers/gpu/drm/omapdrm/omap_crtc.c
> +++ b/drivers/gpu/drm/omapdrm/omap_crtc.c
> @@ -100,14 +100,14 @@ int omap_crtc_wait_pending(struct drm_crtc *crtc)
> * the upstream part of the video pipe.
> */
>
> -static void omap_crtc_dss_start_update(struct omap_drm_private *priv,
> +void omap_crtc_dss_start_update(struct omap_drm_private *priv,
> enum omap_channel channel)
> {
> dispc_mgr_enable(priv->dispc, channel, true);
> }
>
> /* Called only from the encoder enable/disable and suspend/resume handlers. */
> -static void omap_crtc_set_enabled(struct drm_crtc *crtc, bool enable)
> +void omap_crtc_set_enabled(struct drm_crtc *crtc, bool enable)
> {
> struct omap_crtc_state *omap_state = to_omap_crtc_state(crtc->state);
> struct drm_device *dev = crtc->dev;
> @@ -180,8 +180,7 @@ static void omap_crtc_set_enabled(struct drm_crtc *crtc, bool enable)
> }
>
>
> -static int omap_crtc_dss_enable(struct omap_drm_private *priv,
> - enum omap_channel channel)
> +int omap_crtc_dss_enable(struct omap_drm_private *priv, enum omap_channel channel)
> {
> struct drm_crtc *crtc = priv->channels[channel]->crtc;
> struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
> @@ -193,8 +192,7 @@ static int omap_crtc_dss_enable(struct omap_drm_private *priv,
> return 0;
> }
>
> -static void omap_crtc_dss_disable(struct omap_drm_private *priv,
> - enum omap_channel channel)
> +void omap_crtc_dss_disable(struct omap_drm_private *priv, enum omap_channel channel)
> {
> struct drm_crtc *crtc = priv->channels[channel]->crtc;
> struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
> @@ -202,7 +200,7 @@ static void omap_crtc_dss_disable(struct omap_drm_private *priv,
> omap_crtc_set_enabled(&omap_crtc->base, false);
> }
>
> -static void omap_crtc_dss_set_timings(struct omap_drm_private *priv,
> +void omap_crtc_dss_set_timings(struct omap_drm_private *priv,
> enum omap_channel channel,
> const struct videomode *vm)
> {
> @@ -213,7 +211,7 @@ static void omap_crtc_dss_set_timings(struct omap_drm_private *priv,
> omap_crtc->vm = *vm;
> }
>
> -static void omap_crtc_dss_set_lcd_config(struct omap_drm_private *priv,
> +void omap_crtc_dss_set_lcd_config(struct omap_drm_private *priv,
> enum omap_channel channel,
> const struct dss_lcd_mgr_config *config)
> {
> @@ -225,7 +223,7 @@ static void omap_crtc_dss_set_lcd_config(struct omap_drm_private *priv,
> config);
> }
>
> -static int omap_crtc_dss_register_framedone(
> +int omap_crtc_dss_register_framedone(
> struct omap_drm_private *priv, enum omap_channel channel,
> void (*handler)(void *), void *data)
> {
> @@ -244,7 +242,7 @@ static int omap_crtc_dss_register_framedone(
> return 0;
> }
>
> -static void omap_crtc_dss_unregister_framedone(
> +void omap_crtc_dss_unregister_framedone(
> struct omap_drm_private *priv, enum omap_channel channel,
> void (*handler)(void *), void *data)
> {
> @@ -261,16 +259,6 @@ static void omap_crtc_dss_unregister_framedone(
> omap_crtc->framedone_handler_data = NULL;
> }
>
> -static const struct dss_mgr_ops mgr_ops = {
> - .start_update = omap_crtc_dss_start_update,
> - .enable = omap_crtc_dss_enable,
> - .disable = omap_crtc_dss_disable,
> - .set_timings = omap_crtc_dss_set_timings,
> - .set_lcd_config = omap_crtc_dss_set_lcd_config,
> - .register_framedone_handler = omap_crtc_dss_register_framedone,
> - .unregister_framedone_handler = omap_crtc_dss_unregister_framedone,
> -};
> -
> /* -----------------------------------------------------------------------------
> * Setup, Flush and Page Flip
> */
> @@ -753,16 +741,6 @@ static const char *channel_names[] = {
> [OMAP_DSS_CHANNEL_LCD3] = "lcd3",
> };
>
> -void omap_crtc_pre_init(struct omap_drm_private *priv)
> -{
> - dss_install_mgr_ops(priv->dss, &mgr_ops, priv);
> -}
> -
> -void omap_crtc_pre_uninit(struct omap_drm_private *priv)
> -{
> - dss_uninstall_mgr_ops(priv->dss);
> -}
> -
> /* initialize crtc */
> struct drm_crtc *omap_crtc_init(struct drm_device *dev,
> struct omap_drm_pipeline *pipe,
> diff --git a/drivers/gpu/drm/omapdrm/omap_crtc.h b/drivers/gpu/drm/omapdrm/omap_crtc.h
> index 2fd57751ae2b..a8b9cbee86e0 100644
> --- a/drivers/gpu/drm/omapdrm/omap_crtc.h
> +++ b/drivers/gpu/drm/omapdrm/omap_crtc.h
> @@ -22,8 +22,6 @@ struct videomode;
>
> struct videomode *omap_crtc_timings(struct drm_crtc *crtc);
> enum omap_channel omap_crtc_channel(struct drm_crtc *crtc);
> -void omap_crtc_pre_init(struct omap_drm_private *priv);
> -void omap_crtc_pre_uninit(struct omap_drm_private *priv);
> struct drm_crtc *omap_crtc_init(struct drm_device *dev,
> struct omap_drm_pipeline *pipe,
> struct drm_plane *plane);
> diff --git a/drivers/gpu/drm/omapdrm/omap_drv.c b/drivers/gpu/drm/omapdrm/omap_drv.c
> index eb419387ed05..c5b2f50439d6 100644
> --- a/drivers/gpu/drm/omapdrm/omap_drv.c
> +++ b/drivers/gpu/drm/omapdrm/omap_drv.c
> @@ -581,7 +581,7 @@ static int omapdrm_init(struct omap_drm_private *priv, struct device *dev)
> priv->dss = pdata->dss;
> priv->dispc = dispc_get_dispc(priv->dss);
>
> - omap_crtc_pre_init(priv);
> + priv->dss->mgr_ops_priv = priv;
>
> soc = soc_device_match(omapdrm_soc_devices);
> priv->omaprev = soc ? (unsigned int)soc->data : 0;
> @@ -634,7 +634,6 @@ static int omapdrm_init(struct omap_drm_private *priv, struct device *dev)
> omap_gem_deinit(ddev);
> destroy_workqueue(priv->wq);
> omap_disconnect_pipelines(ddev);
> - omap_crtc_pre_uninit(priv);
> drm_dev_put(ddev);
> return ret;
> }
> @@ -660,7 +659,6 @@ static void omapdrm_cleanup(struct omap_drm_private *priv)
> destroy_workqueue(priv->wq);
>
> omap_disconnect_pipelines(ddev);
> - omap_crtc_pre_uninit(priv);
>
> drm_dev_put(ddev);
> }

--
Regards,

Laurent Pinchart