The platform device id driver data field points to a device information structure that only contains a (currently empty) features field for now. Support for additional model-dependent features will be added later.
Only the R8A7779 variant is currently supported.
Signed-off-by: Laurent Pinchart laurent.pinchart+renesas@ideasonboard.com --- drivers/gpu/drm/rcar-du/rcar_du_drv.c | 13 +++++++++++++ drivers/gpu/drm/rcar-du/rcar_du_drv.h | 15 +++++++++++++++ 2 files changed, 28 insertions(+)
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.c b/drivers/gpu/drm/rcar-du/rcar_du_drv.c index 24ab0ca..d705990 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.c @@ -123,6 +123,7 @@ static int rcar_du_load(struct drm_device *dev, unsigned long flags)
rcdu->dev = &pdev->dev; rcdu->pdata = pdata; + rcdu->info = (struct rcar_du_device_info *)pdev->id_entry->driver_data; rcdu->ddev = dev; dev->dev_private = rcdu;
@@ -292,6 +293,17 @@ static int rcar_du_remove(struct platform_device *pdev) return 0; }
+static const struct rcar_du_device_info rcar_du_r8a7779_info = { + .features = 0, +}; + +static const struct platform_device_id rcar_du_id_table[] = { + { "rcar-du-r8a7779", (kernel_ulong_t)&rcar_du_r8a7779_info }, + { } +}; + +MODULE_DEVICE_TABLE(platform, rcar_du_id_table); + static struct platform_driver rcar_du_platform_driver = { .probe = rcar_du_probe, .remove = rcar_du_remove, @@ -300,6 +312,7 @@ static struct platform_driver rcar_du_platform_driver = { .name = "rcar-du", .pm = &rcar_du_pm_ops, }, + .id_table = rcar_du_id_table, };
module_platform_driver(rcar_du_platform_driver); diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.h b/drivers/gpu/drm/rcar-du/rcar_du_drv.h index 193cc59..06dbf4f 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.h +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.h @@ -25,9 +25,18 @@ struct clk; struct device; struct drm_device;
+/* + * struct rcar_du_device_info - DU model-specific information + * @features: device features (RCAR_DU_FEATURE_*) + */ +struct rcar_du_device_info { + unsigned int features; +}; + struct rcar_du_device { struct device *dev; const struct rcar_du_platform_data *pdata; + const struct rcar_du_device_info *info;
void __iomem *mmio; struct clk *clock; @@ -50,6 +59,12 @@ struct rcar_du_device { } planes; };
+static inline bool rcar_du_has(struct rcar_du_device *rcdu, + unsigned int feature) +{ + return rcdu->info->features & feature; +} + int rcar_du_get(struct rcar_du_device *rcdu); void rcar_du_put(struct rcar_du_device *rcdu);