[RFC 04/14] OMAPDSS: Add DT support to DSI
flat view
STALE4967d
From: Tomi Valkeinen <hidden>
Date: 2013-03-27 08:45:11
Also in:
linux-fbdev, linux-omap
Subsystem:
framebuffer layer, the rest · Maintainers:
Helge Deller, Linus Torvalds
Add the code to make the DSI driver work with device tree on OMAP3 and
OMAP4. The of_match_table is added, and also a bit hacky
"ti,dsi-module-id" DT property, which tells the DSI ID number.
Signed-off-by: Tomi Valkeinen <redacted>
---
drivers/video/omap2/dss/dsi.c | 24 +++++++++++++++++++++++-
1 file changed, 23 insertions(+), 1 deletion(-)
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index fb77aa8..1058cab 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c@@ -38,6 +38,7 @@ #include <linux/slab.h> #include <linux/debugfs.h> #include <linux/pm_runtime.h> +#include <linux/of.h> #include <video/omapdss.h> #include <video/mipi_display.h>
@@ -5541,7 +5542,20 @@ static int __init omap_dsihw_probe(struct platform_device *dsidev) if (!dsi) return -ENOMEM; - dsi->module_id = dsidev->id; + if (dsidev->dev.of_node) { + u32 id; + r = of_property_read_u32(dsidev->dev.of_node, + "ti,dsi-module-id", &id); + if (r) { + DSSERR("failed to read DSI module ID\n"); + return r; + } + + dsi->module_id = id; + } else { + dsi->module_id = dsidev->id; + } + dsi->pdev = dsidev; dev_set_drvdata(&dsidev->dev, dsi);
@@ -5642,6 +5656,7 @@ static int __init omap_dsihw_probe(struct platform_device *dsidev) else if (dsi->module_id == 1) dss_debugfs_create_file("dsi2_irqs", dsi2_dump_irqs); #endif + return 0; err_runtime_get:
@@ -5700,12 +5715,19 @@ static const struct dev_pm_ops dsi_pm_ops = { .runtime_resume = dsi_runtime_resume, }; +static const struct of_device_id dsi_of_match[] = { + { .compatible = "ti,omap3-dsi", }, + { .compatible = "ti,omap4-dsi", }, + {}, +}; + static struct platform_driver omap_dsihw_driver = { .remove = __exit_p(omap_dsihw_remove), .driver = { .name = "omapdss_dsi", .owner = THIS_MODULE, .pm = &dsi_pm_ops, + .of_match_table = dsi_of_match, }, };
--
1.7.10.4