On Sat 17 Jul 07:40 CDT 2021, Dmitry Baryshkov wrote:
> Move setting up encoders from set_encoder_mode to
> _dpu_kms_initialize_dsi() / _dpu_kms_initialize_displayport(). This
> allows us to support not only "single DSI" and "bonded DSI" but also "two
> independent DSI" configurations. In future this would also help adding
> support for multiple DP connectors.
>
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
> Reviewed-by: Abhinav Kumar <abhinavk@xxxxxxxxxxxxxx>
Reviewed-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
Regards,
Bjorn
> ---
> drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 102 +++++++++++++-----------
> 1 file changed, 57 insertions(+), 45 deletions(-)
>
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
> index 1d3a4f395e74..3cd2011e18d4 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
> @@ -471,30 +471,68 @@ static int _dpu_kms_initialize_dsi(struct drm_device *dev,
> struct dpu_kms *dpu_kms)
> {
> struct drm_encoder *encoder = NULL;
> + struct msm_display_info info;
> int i, rc = 0;
>
> if (!(priv->dsi[0] || priv->dsi[1]))
> return rc;
>
> - /*TODO: Support two independent DSI connectors */
> - encoder = dpu_encoder_init(dev, DRM_MODE_ENCODER_DSI);
> - if (IS_ERR(encoder)) {
> - DPU_ERROR("encoder init failed for dsi display\n");
> - return PTR_ERR(encoder);
> - }
> -
> - priv->encoders[priv->num_encoders++] = encoder;
> -
> + /*
> + * We support following confiurations:
> + * - Single DSI host (dsi0 or dsi1)
> + * - Two independent DSI hosts
> + * - Bonded DSI0 and DSI1 hosts
> + *
> + * TODO: Support swapping DSI0 and DSI1 in the bonded setup.
> + */
> for (i = 0; i < ARRAY_SIZE(priv->dsi); i++) {
> + int other = (i + 1) % 2;
> +
> if (!priv->dsi[i])
> continue;
>
> + if (msm_dsi_is_bonded_dsi(priv->dsi[i]) &&
> + !msm_dsi_is_master_dsi(priv->dsi[i]))
> + continue;
> +
> + encoder = dpu_encoder_init(dev, DRM_MODE_ENCODER_DSI);
> + if (IS_ERR(encoder)) {
> + DPU_ERROR("encoder init failed for dsi display\n");
> + return PTR_ERR(encoder);
> + }
> +
> + priv->encoders[priv->num_encoders++] = encoder;
> +
> + memset(&info, 0, sizeof(info));
> + info.intf_type = encoder->encoder_type;
> +
> rc = msm_dsi_modeset_init(priv->dsi[i], dev, encoder);
> if (rc) {
> DPU_ERROR("modeset_init failed for dsi[%d], rc = %d\n",
> i, rc);
> break;
> }
> +
> + info.h_tile_instance[info.num_of_h_tiles++] = i;
> + info.capabilities = msm_dsi_is_cmd_mode(priv->dsi[i]) ?
> + MSM_DISPLAY_CAP_CMD_MODE :
> + MSM_DISPLAY_CAP_VID_MODE;
> +
> + if (msm_dsi_is_bonded_dsi(priv->dsi[i]) && priv->dsi[other]) {
> + rc = msm_dsi_modeset_init(priv->dsi[other], dev, encoder);
> + if (rc) {
> + DPU_ERROR("modeset_init failed for dsi[%d], rc = %d\n",
> + other, rc);
> + break;
> + }
> +
> + info.h_tile_instance[info.num_of_h_tiles++] = other;
> + }
> +
> + rc = dpu_encoder_setup(dev, encoder, &info);
> + if (rc)
> + DPU_ERROR("failed to setup DPU encoder %d: rc:%d\n",
> + encoder->base.id, rc);
> }
>
> return rc;
> @@ -505,6 +543,7 @@ static int _dpu_kms_initialize_displayport(struct drm_device *dev,
> struct dpu_kms *dpu_kms)
> {
> struct drm_encoder *encoder = NULL;
> + struct msm_display_info info;
> int rc = 0;
>
> if (!priv->dp)
> @@ -516,6 +555,7 @@ static int _dpu_kms_initialize_displayport(struct drm_device *dev,
> return PTR_ERR(encoder);
> }
>
> + memset(&info, 0, sizeof(info));
> rc = msm_dp_modeset_init(priv->dp, dev, encoder);
> if (rc) {
> DPU_ERROR("modeset_init failed for DP, rc = %d\n", rc);
> @@ -524,6 +564,14 @@ static int _dpu_kms_initialize_displayport(struct drm_device *dev,
> }
>
> priv->encoders[priv->num_encoders++] = encoder;
> +
> + info.num_of_h_tiles = 1;
> + info.capabilities = MSM_DISPLAY_CAP_VID_MODE;
> + info.intf_type = encoder->encoder_type;
> + rc = dpu_encoder_setup(dev, encoder, &info);
> + if (rc)
> + DPU_ERROR("failed to setup DPU encoder %d: rc:%d\n",
> + encoder->base.id, rc);
> return rc;
> }
>
> @@ -726,41 +774,6 @@ static void dpu_kms_destroy(struct msm_kms *kms)
> msm_kms_destroy(&dpu_kms->base);
> }
>
> -static void _dpu_kms_set_encoder_mode(struct msm_kms *kms,
> - struct drm_encoder *encoder,
> - bool cmd_mode)
> -{
> - struct msm_display_info info;
> - struct msm_drm_private *priv = encoder->dev->dev_private;
> - int i, rc = 0;
> -
> - memset(&info, 0, sizeof(info));
> -
> - info.intf_type = encoder->encoder_type;
> - info.capabilities = cmd_mode ? MSM_DISPLAY_CAP_CMD_MODE :
> - MSM_DISPLAY_CAP_VID_MODE;
> -
> - switch (info.intf_type) {
> - case DRM_MODE_ENCODER_DSI:
> - /* TODO: No support for DSI swap */
> - for (i = 0; i < ARRAY_SIZE(priv->dsi); i++) {
> - if (priv->dsi[i]) {
> - info.h_tile_instance[info.num_of_h_tiles] = i;
> - info.num_of_h_tiles++;
> - }
> - }
> - break;
> - case DRM_MODE_ENCODER_TMDS:
> - info.num_of_h_tiles = 1;
> - break;
> - }
> -
> - rc = dpu_encoder_setup(encoder->dev, encoder, &info);
> - if (rc)
> - DPU_ERROR("failed to setup DPU encoder %d: rc:%d\n",
> - encoder->base.id, rc);
> -}
> -
> static irqreturn_t dpu_irq(struct msm_kms *kms)
> {
> struct dpu_kms *dpu_kms = to_dpu_kms(kms);
> @@ -863,7 +876,6 @@ static const struct msm_kms_funcs kms_funcs = {
> .get_format = dpu_get_msm_format,
> .round_pixclk = dpu_kms_round_pixclk,
> .destroy = dpu_kms_destroy,
> - .set_encoder_mode = _dpu_kms_set_encoder_mode,
> .snapshot = dpu_kms_mdp_snapshot,
> #ifdef CONFIG_DEBUG_FS
> .debugfs_init = dpu_kms_debugfs_init,
> --
> 2.30.2
>
