Hi, On Sat, May 26, 2018 at 08:25:11PM +0300, Laurent Pinchart wrote: > The display type is validated when the display is connected to the DSS > output. We already have all the information we need for validation when > initializing the outputs. Move validation to output initialization to > simplify pipeline connection handling. > > Signed-off-by: Laurent Pinchart <laurent.pinch...@ideasonboard.com> > ---
Reviewed-by: Sebastian Reichel <sebastian.reic...@collabora.co.uk>
-- Sebastian
> drivers/gpu/drm/omapdrm/dss/dpi.c | 25 +++++++++++--------------
> drivers/gpu/drm/omapdrm/dss/dsi.c | 25 +++++++++++--------------
> drivers/gpu/drm/omapdrm/dss/hdmi4.c | 25 +++++++++++--------------
> drivers/gpu/drm/omapdrm/dss/hdmi5.c | 25 +++++++++++--------------
> drivers/gpu/drm/omapdrm/dss/omapdss.h | 3 +--
> drivers/gpu/drm/omapdrm/dss/output.c | 17 +++++------------
> drivers/gpu/drm/omapdrm/dss/sdi.c | 25 +++++++++++--------------
> drivers/gpu/drm/omapdrm/dss/venc.c | 25 +++++++++++--------------
> 8 files changed, 72 insertions(+), 98 deletions(-)
>
> diff --git a/drivers/gpu/drm/omapdrm/dss/dpi.c
> b/drivers/gpu/drm/omapdrm/dss/dpi.c
> index dc50a220382c..831de09770a3 100644
> --- a/drivers/gpu/drm/omapdrm/dss/dpi.c
> +++ b/drivers/gpu/drm/omapdrm/dss/dpi.c
> @@ -620,24 +620,13 @@ static int dpi_connect(struct omap_dss_device *src,
> if (r)
> return r;
>
> - r = omapdss_output_set_device(dst, dst->next);
> + r = omapdss_device_connect(dst->dss, dst, dst->next);
> if (r) {
> - DSSERR("failed to connect output to new device: %s\n",
> - dst->name);
> - goto err_mgr_disconnect;
> + dss_mgr_disconnect(dst);
> + return r;
> }
>
> - r = omapdss_device_connect(dst->dss, dst, dst->next);
> - if (r)
> - goto err_output_unset;
> -
> return 0;
> -
> -err_output_unset:
> - omapdss_output_unset_device(dst);
> -err_mgr_disconnect:
> - dss_mgr_disconnect(dst);
> - return r;
> }
>
> static void dpi_disconnect(struct omap_dss_device *src,
> @@ -664,6 +653,7 @@ static int dpi_init_output_port(struct dpi_data *dpi,
> struct device_node *port)
> {
> struct omap_dss_device *out = &dpi->output;
> u32 port_num = 0;
> + int r;
>
> of_property_read_u32(port, "reg", &port_num);
> dpi->id = port_num <= 2 ? port_num : 0;
> @@ -696,6 +686,13 @@ static int dpi_init_output_port(struct dpi_data *dpi,
> struct device_node *port)
> return PTR_ERR(out->next);
> }
>
> + r = omapdss_output_validate(out);
> + if (r) {
> + omapdss_device_put(out->next);
> + out->next = NULL;
> + return r;
> + }
> +
> omapdss_device_register(out);
>
> return 0;
> diff --git a/drivers/gpu/drm/omapdrm/dss/dsi.c
> b/drivers/gpu/drm/omapdrm/dss/dsi.c
> index a5516d6e8017..53a32e20c3bd 100644
> --- a/drivers/gpu/drm/omapdrm/dss/dsi.c
> +++ b/drivers/gpu/drm/omapdrm/dss/dsi.c
> @@ -4890,24 +4890,13 @@ static int dsi_connect(struct omap_dss_device *src,
> if (r)
> return r;
>
> - r = omapdss_output_set_device(dst, dst->next);
> + r = omapdss_device_connect(dst->dss, dst, dst->next);
> if (r) {
> - DSSERR("failed to connect output to new device: %s\n",
> - dst->name);
> - goto err_mgr_disconnect;
> + dss_mgr_disconnect(dst);
> + return r;
> }
>
> - r = omapdss_device_connect(dst->dss, dst, dst->next);
> - if (r)
> - goto err_output_unset;
> -
> return 0;
> -
> -err_output_unset:
> - omapdss_output_unset_device(dst);
> -err_mgr_disconnect:
> - dss_mgr_disconnect(dst);
> - return r;
> }
>
> static void dsi_disconnect(struct omap_dss_device *src,
> @@ -5147,6 +5136,7 @@ static const struct component_ops dsi_component_ops = {
> static int dsi_init_output(struct dsi_data *dsi)
> {
> struct omap_dss_device *out = &dsi->output;
> + int r;
>
> out->dev = dsi->dev;
> out->id = dsi->module_id == 0 ?
> @@ -5166,6 +5156,13 @@ static int dsi_init_output(struct dsi_data *dsi)
> return PTR_ERR(out->next);
> }
>
> + r = omapdss_output_validate(out);
> + if (r) {
> + omapdss_device_put(out->next);
> + out->next = NULL;
> + return r;
> + }
> +
> omapdss_device_register(out);
>
> return 0;
> diff --git a/drivers/gpu/drm/omapdrm/dss/hdmi4.c
> b/drivers/gpu/drm/omapdrm/dss/hdmi4.c
> index 9f883669e71b..22f8b74f5bf5 100644
> --- a/drivers/gpu/drm/omapdrm/dss/hdmi4.c
> +++ b/drivers/gpu/drm/omapdrm/dss/hdmi4.c
> @@ -437,24 +437,13 @@ static int hdmi_connect(struct omap_dss_device *src,
> if (r)
> return r;
>
> - r = omapdss_output_set_device(dst, dst->next);
> + r = omapdss_device_connect(dst->dss, dst, dst->next);
> if (r) {
> - DSSERR("failed to connect output to new device: %s\n",
> - dst->name);
> - goto err_mgr_disconnect;
> + dss_mgr_disconnect(dst);
> + return r;
> }
>
> - r = omapdss_device_connect(dst->dss, dst, dst->next);
> - if (r)
> - goto err_output_unset;
> -
> return 0;
> -
> -err_output_unset:
> - omapdss_output_unset_device(dst);
> -err_mgr_disconnect:
> - dss_mgr_disconnect(dst);
> - return r;
> }
>
> static void hdmi_disconnect(struct omap_dss_device *src,
> @@ -717,6 +706,7 @@ static const struct component_ops hdmi4_component_ops = {
> static int hdmi4_init_output(struct omap_hdmi *hdmi)
> {
> struct omap_dss_device *out = &hdmi->output;
> + int r;
>
> out->dev = &hdmi->pdev->dev;
> out->id = OMAP_DSS_OUTPUT_HDMI;
> @@ -734,6 +724,13 @@ static int hdmi4_init_output(struct omap_hdmi *hdmi)
> return PTR_ERR(out->next);
> }
>
> + r = omapdss_output_validate(out);
> + if (r) {
> + omapdss_device_put(out->next);
> + out->next = NULL;
> + return r;
> + }
> +
> omapdss_device_register(out);
>
> return 0;
> diff --git a/drivers/gpu/drm/omapdrm/dss/hdmi5.c
> b/drivers/gpu/drm/omapdrm/dss/hdmi5.c
> index beb70b1fab94..d8592d02a58d 100644
> --- a/drivers/gpu/drm/omapdrm/dss/hdmi5.c
> +++ b/drivers/gpu/drm/omapdrm/dss/hdmi5.c
> @@ -442,24 +442,13 @@ static int hdmi_connect(struct omap_dss_device *src,
> if (r)
> return r;
>
> - r = omapdss_output_set_device(dst, dst->next);
> + r = omapdss_device_connect(dst->dss, dst, dst->next);
> if (r) {
> - DSSERR("failed to connect output to new device: %s\n",
> - dst->name);
> - goto err_mgr_disconnect;
> + dss_mgr_disconnect(dst);
> + return r;
> }
>
> - r = omapdss_device_connect(dst->dss, dst, dst->next);
> - if (r)
> - goto err_output_unset;
> -
> return 0;
> -
> -err_output_unset:
> - omapdss_output_unset_device(dst);
> -err_mgr_disconnect:
> - dss_mgr_disconnect(dst);
> - return r;
> }
>
> static void hdmi_disconnect(struct omap_dss_device *src,
> @@ -709,6 +698,7 @@ static const struct component_ops hdmi5_component_ops = {
> static int hdmi5_init_output(struct omap_hdmi *hdmi)
> {
> struct omap_dss_device *out = &hdmi->output;
> + int r;
>
> out->dev = &hdmi->pdev->dev;
> out->id = OMAP_DSS_OUTPUT_HDMI;
> @@ -726,6 +716,13 @@ static int hdmi5_init_output(struct omap_hdmi *hdmi)
> return PTR_ERR(out->next);
> }
>
> + r = omapdss_output_validate(out);
> + if (r) {
> + omapdss_device_put(out->next);
> + out->next = NULL;
> + return r;
> + }
> +
> omapdss_device_register(out);
>
> return 0;
> diff --git a/drivers/gpu/drm/omapdrm/dss/omapdss.h
> b/drivers/gpu/drm/omapdrm/dss/omapdss.h
> index d88e302fbc8d..7add73a5479a 100644
> --- a/drivers/gpu/drm/omapdrm/dss/omapdss.h
> +++ b/drivers/gpu/drm/omapdrm/dss/omapdss.h
> @@ -517,8 +517,7 @@ int omap_dss_get_num_overlays(void);
>
> #define for_each_dss_output(d) \
> while ((d = omapdss_device_get_next(d, false, true)) != NULL)
> -int omapdss_output_set_device(struct omap_dss_device *out,
> - struct omap_dss_device *dssdev);
> +int omapdss_output_validate(struct omap_dss_device *out);
> int omapdss_output_unset_device(struct omap_dss_device *out);
>
> typedef void (*omap_dispc_isr_t) (void *arg, u32 mask);
> diff --git a/drivers/gpu/drm/omapdrm/dss/output.c
> b/drivers/gpu/drm/omapdrm/dss/output.c
> index 96d74218cf91..be544dd48bf4 100644
> --- a/drivers/gpu/drm/omapdrm/dss/output.c
> +++ b/drivers/gpu/drm/omapdrm/dss/output.c
> @@ -26,23 +26,16 @@
>
> static DEFINE_MUTEX(output_lock);
>
> -int omapdss_output_set_device(struct omap_dss_device *out,
> - struct omap_dss_device *dssdev)
> +int omapdss_output_validate(struct omap_dss_device *out)
> {
> - int r = 0;
> -
> - mutex_lock(&output_lock);
> -
> - if (out->output_type != dssdev->type) {
> + if (out->next && out->output_type != out->next->type) {
> dev_err(out->dev, "output type and display type don't match\n");
> - r = -EINVAL;
> + return -EINVAL;
> }
>
> - mutex_unlock(&output_lock);
> -
> - return r;
> + return 0;
> }
> -EXPORT_SYMBOL(omapdss_output_set_device);
> +EXPORT_SYMBOL(omapdss_output_validate);
>
> int omapdss_output_unset_device(struct omap_dss_device *out)
> {
> diff --git a/drivers/gpu/drm/omapdrm/dss/sdi.c
> b/drivers/gpu/drm/omapdrm/dss/sdi.c
> index f6e26a0a7efd..5c197688c0f9 100644
> --- a/drivers/gpu/drm/omapdrm/dss/sdi.c
> +++ b/drivers/gpu/drm/omapdrm/dss/sdi.c
> @@ -258,24 +258,13 @@ static int sdi_connect(struct omap_dss_device *src,
> if (r)
> return r;
>
> - r = omapdss_output_set_device(dst, dst);
> + r = omapdss_device_connect(dst->dss, dst, dst->next);
> if (r) {
> - DSSERR("failed to connect output to new device: %s\n",
> - dst->name);
> - goto err_mgr_disconnect;
> + dss_mgr_disconnect(dst);
> + return r;
> }
>
> - r = omapdss_device_connect(dst->dss, dst, dst->next);
> - if (r)
> - goto err_output_unset;
> -
> return 0;
> -
> -err_output_unset:
> - omapdss_output_unset_device(dst);
> -err_mgr_disconnect:
> - dss_mgr_disconnect(dst);
> - return r;
> }
>
> static void sdi_disconnect(struct omap_dss_device *src,
> @@ -301,6 +290,7 @@ static const struct omap_dss_device_ops sdi_ops = {
> static int sdi_init_output(struct sdi_device *sdi)
> {
> struct omap_dss_device *out = &sdi->output;
> + int r;
>
> out->dev = &sdi->pdev->dev;
> out->id = OMAP_DSS_OUTPUT_SDI;
> @@ -319,6 +309,13 @@ static int sdi_init_output(struct sdi_device *sdi)
> return PTR_ERR(out->next);
> }
>
> + r = omapdss_output_validate(out);
> + if (r) {
> + omapdss_device_put(out->next);
> + out->next = NULL;
> + return r;
> + }
> +
> omapdss_device_register(out);
>
> return 0;
> diff --git a/drivers/gpu/drm/omapdrm/dss/venc.c
> b/drivers/gpu/drm/omapdrm/dss/venc.c
> index dfdd066a0ee5..216b31cc5ec1 100644
> --- a/drivers/gpu/drm/omapdrm/dss/venc.c
> +++ b/drivers/gpu/drm/omapdrm/dss/venc.c
> @@ -700,24 +700,13 @@ static int venc_connect(struct omap_dss_device *src,
> if (r)
> return r;
>
> - r = omapdss_output_set_device(dst, dst->next);
> + r = omapdss_device_connect(dst->dss, dst, dst->next);
> if (r) {
> - DSSERR("failed to connect output to new device: %s\n",
> - dst->name);
> - goto err_mgr_disconnect;
> + dss_mgr_disconnect(dst);
> + return r;
> }
>
> - r = omapdss_device_connect(dst->dss, dst, dst->next);
> - if (r)
> - goto err_output_unset;
> -
> return 0;
> -
> -err_output_unset:
> - omapdss_output_unset_device(dst);
> -err_mgr_disconnect:
> - dss_mgr_disconnect(dst);
> - return r;
> }
>
> static void venc_disconnect(struct omap_dss_device *src,
> @@ -787,6 +776,7 @@ static const struct component_ops venc_component_ops = {
> static int venc_init_output(struct venc_device *venc)
> {
> struct omap_dss_device *out = &venc->output;
> + int r;
>
> out->dev = &venc->pdev->dev;
> out->id = OMAP_DSS_OUTPUT_VENC;
> @@ -804,6 +794,13 @@ static int venc_init_output(struct venc_device *venc)
> return PTR_ERR(out->next);
> }
>
> + r = omapdss_output_validate(out);
> + if (r) {
> + omapdss_device_put(out->next);
> + out->next = NULL;
> + return r;
> + }
> +
> omapdss_device_register(out);
>
> return 0;
> --
> Regards,
>
> Laurent Pinchart
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
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