Add support for OF graph parsing. When using OF graph the default tilcdc_panel_info is used which is the same as defined in Linux.
Signed-off-by: Markus Schneider-Pargmann (TI.com) <[email protected]> --- drivers/video/ti/tilcdc.c | 46 ++++++++++++++++++++++++++++++++++++++-------- 1 file changed, 38 insertions(+), 8 deletions(-) diff --git a/drivers/video/ti/tilcdc.c b/drivers/video/ti/tilcdc.c index 340c79299bacabc5a95dbeafbed3cb729afe7576..b498e81864b87464c00c1b23cb1d35394b06d9e8 100644 --- a/drivers/video/ti/tilcdc.c +++ b/drivers/video/ti/tilcdc.c @@ -6,6 +6,7 @@ #include <clk.h> #include <dm.h> #include <dm/device_compat.h> +#include <dm/ofnode_graph.h> #include <log.h> #include <panel.h> #include <video.h> @@ -113,6 +114,18 @@ struct tilcdc_priv { DECLARE_GLOBAL_DATA_PTR; +static const struct tilcdc_panel_info tilcdc_panel_info_default = { + .ac_bias = 255, + .ac_bias_intrpt = 0, + .dma_burst_sz = 16, + .bpp = 16, + .fdd = 0x80, + .tft_alt_mode = 0, + .sync_edge = 0, + .sync_ctrl = 1, + .raster_order = 0, +}; + static ulong tilcdc_set_pixel_clk_rate(struct udevice *dev, ulong rate) { struct tilcdc_priv *priv = dev_get_priv(dev); @@ -173,6 +186,8 @@ static int tilcdc_probe(struct udevice *dev) struct udevice *panel, *clk_dev; struct tilcdc_panel_info info; struct display_timing timing; + bool is_legacy_panel = false; + ofnode remote; ulong rate; u32 reg; int err; @@ -181,10 +196,21 @@ static int tilcdc_probe(struct udevice *dev) if (!(gd->flags & GD_FLG_RELOC)) return 0; - err = uclass_get_device(UCLASS_PANEL, 0, &panel); - if (err) { - dev_err(dev, "failed to get panel\n"); - return err; + /* Try using remote node first, then fall back to using UCLASS_PANEL */ + remote = ofnode_graph_get_remote_node(dev_ofnode(dev), -1, -1); + if (ofnode_valid(remote)) { + err = uclass_get_device_by_ofnode(UCLASS_PANEL, remote, &panel); + if (err) { + dev_err(dev, "failed to get panel via OF graph\n"); + return err; + } + } else { + err = uclass_get_device(UCLASS_PANEL, 0, &panel); + if (err) { + dev_err(dev, "failed to get panel\n"); + return err; + } + is_legacy_panel = true; } err = panel_get_display_timing(panel, &timing); @@ -205,10 +231,14 @@ static int tilcdc_probe(struct udevice *dev) if (timing.vactive.typ > LCDC_MAX_HEIGHT) timing.vactive.typ = LCDC_MAX_HEIGHT; - err = tilcdc_panel_get_display_info(panel, &info); - if (err) { - dev_err(dev, "failed to get panel info\n"); - return err; + if (is_legacy_panel) { + err = tilcdc_panel_get_display_info(panel, &info); + if (err) { + dev_err(dev, "failed to get panel info\n"); + return err; + } + } else { + info = tilcdc_panel_info_default; } switch (info.bpp) { -- 2.51.0
