diff options
Diffstat (limited to 'drivers/gpu/drm/xlnx/zynqmp_disp.c')
-rw-r--r-- | drivers/gpu/drm/xlnx/zynqmp_disp.c | 92 |
1 files changed, 79 insertions, 13 deletions
diff --git a/drivers/gpu/drm/xlnx/zynqmp_disp.c b/drivers/gpu/drm/xlnx/zynqmp_disp.c index 8cdd74a9b772..13157da0089e 100644 --- a/drivers/gpu/drm/xlnx/zynqmp_disp.c +++ b/drivers/gpu/drm/xlnx/zynqmp_disp.c @@ -436,19 +436,29 @@ static void zynqmp_disp_avbuf_set_format(struct zynqmp_disp *disp, const struct zynqmp_disp_format *fmt) { unsigned int i; - u32 val; + u32 val, reg; - val = zynqmp_disp_avbuf_read(disp, ZYNQMP_DISP_AV_BUF_FMT); - val &= zynqmp_disp_layer_is_video(layer) - ? ~ZYNQMP_DISP_AV_BUF_FMT_NL_VID_MASK - : ~ZYNQMP_DISP_AV_BUF_FMT_NL_GFX_MASK; - val |= fmt->buf_fmt; - zynqmp_disp_avbuf_write(disp, ZYNQMP_DISP_AV_BUF_FMT, val); + layer->disp_fmt = fmt; + if (layer->mode == ZYNQMP_DPSUB_LAYER_NONLIVE) { + reg = ZYNQMP_DISP_AV_BUF_FMT; + val = zynqmp_disp_avbuf_read(disp, ZYNQMP_DISP_AV_BUF_FMT); + val &= zynqmp_disp_layer_is_video(layer) + ? ~ZYNQMP_DISP_AV_BUF_FMT_NL_VID_MASK + : ~ZYNQMP_DISP_AV_BUF_FMT_NL_GFX_MASK; + val |= fmt->buf_fmt; + zynqmp_disp_avbuf_write(disp, reg, val); + } else { + reg = zynqmp_disp_layer_is_video(layer) + ? ZYNQMP_DISP_AV_BUF_LIVE_VID_CONFIG + : ZYNQMP_DISP_AV_BUF_LIVE_GFX_CONFIG; + val = fmt->buf_fmt; + zynqmp_disp_avbuf_write(disp, reg, val); + } for (i = 0; i < ZYNQMP_DISP_AV_BUF_NUM_SF; i++) { - unsigned int reg = zynqmp_disp_layer_is_video(layer) - ? ZYNQMP_DISP_AV_BUF_VID_COMP_SF(i) - : ZYNQMP_DISP_AV_BUF_GFX_COMP_SF(i); + reg = zynqmp_disp_layer_is_video(layer) + ? ZYNQMP_DISP_AV_BUF_VID_COMP_SF(i) + : ZYNQMP_DISP_AV_BUF_GFX_COMP_SF(i); zynqmp_disp_avbuf_write(disp, reg, fmt->sf[i]); } @@ -927,6 +937,31 @@ zynqmp_disp_layer_find_format(struct zynqmp_disp_layer *layer, } /** + * zynqmp_disp_layer_find_live_format - Find format information for given + * media bus format + * @layer: The layer + * @drm_fmt: Media bus format to search + * + * Search display subsystem format information corresponding to the given media + * bus format @media_bus_format for the @layer, and return a pointer to the + * format descriptor. + * + * Return: A pointer to the format descriptor if found, NULL otherwise + */ +static const struct zynqmp_disp_format * +zynqmp_disp_layer_find_live_format(struct zynqmp_disp_layer *layer, + u32 media_bus_format) +{ + unsigned int i; + + for (i = 0; i < layer->info->num_formats; i++) + if (layer->info->formats[i].bus_fmt == media_bus_format) + return &layer->info->formats[i]; + + return NULL; +} + +/** * zynqmp_disp_layer_drm_formats - Return the DRM formats supported by the layer * @layer: The layer * @num_formats: Pointer to the returned number of formats @@ -1040,6 +1075,9 @@ void zynqmp_disp_layer_disable(struct zynqmp_disp_layer *layer) * @layer: The layer * @info: The format info * + * NOTE: Use zynqmp_disp_layer_set_live_format() to set media bus format for + * live video layers. + * * Set the format for @layer to @info. The layer must be disabled. */ void zynqmp_disp_layer_set_format(struct zynqmp_disp_layer *layer, @@ -1047,14 +1085,16 @@ void zynqmp_disp_layer_set_format(struct zynqmp_disp_layer *layer, { unsigned int i; + if (WARN_ON(layer->mode != ZYNQMP_DPSUB_LAYER_NONLIVE)) + return; + layer->disp_fmt = zynqmp_disp_layer_find_format(layer, info->format); + if (WARN_ON(!layer->disp_fmt)) + return; layer->drm_fmt = info; zynqmp_disp_avbuf_set_format(layer->disp, layer, layer->disp_fmt); - if (layer->mode == ZYNQMP_DPSUB_LAYER_LIVE) - return; - /* * Set pconfig for each DMA channel to indicate they're part of a * video group. @@ -1075,6 +1115,32 @@ void zynqmp_disp_layer_set_format(struct zynqmp_disp_layer *layer, } /** + * zynqmp_disp_layer_set_live_format - Set the live video layer format + * @layer: The layer + * @info: The format info + * + * NOTE: This function should not be used to set format for non-live video + * layer. Use zynqmp_disp_layer_set_format() instead. + * + * Set the display format for the live @layer. The layer must be disabled. + */ +void zynqmp_disp_layer_set_live_format(struct zynqmp_disp_layer *layer, + u32 media_bus_format) +{ + if (WARN_ON(layer->mode != ZYNQMP_DPSUB_LAYER_LIVE)) + return; + + layer->disp_fmt = zynqmp_disp_layer_find_live_format(layer, + media_bus_format); + if (WARN_ON(!layer->disp_fmt)) + return; + + zynqmp_disp_avbuf_set_format(layer->disp, layer, layer->disp_fmt); + + layer->drm_fmt = drm_format_info(layer->disp_fmt->drm_fmt); +} + +/** * zynqmp_disp_layer_update - Update the layer framebuffer * @layer: The layer * @state: The plane state |