diff options
| -rw-r--r-- | drivers/gpu/drm/drm_mipi_dsi.c | 18 | ||||
| -rw-r--r-- | include/drm/drm_mipi_dsi.h | 10 |
2 files changed, 25 insertions, 3 deletions
diff --git a/drivers/gpu/drm/drm_mipi_dsi.c b/drivers/gpu/drm/drm_mipi_dsi.c index 5d7243da2323..42a7aacf7a2f 100644 --- a/drivers/gpu/drm/drm_mipi_dsi.c +++ b/drivers/gpu/drm/drm_mipi_dsi.c @@ -47,7 +47,17 @@ static int mipi_dsi_device_match(struct device *dev, struct device_driver *drv) { - return of_driver_match_device(dev, drv); + struct mipi_dsi_device *dsi = to_mipi_dsi_device(dev); + + /* attempt OF style match */ + if (of_driver_match_device(dev, drv)) + return 1; + + /* compare DSI device and driver names */ + if (!strcmp(dsi->name, drv->name)) + return 1; + + return 0; } static const struct dev_pm_ops mipi_dsi_device_pm_ops = { @@ -138,6 +148,11 @@ of_mipi_dsi_device_add(struct mipi_dsi_host *host, struct device_node *node) int ret; u32 reg; + if (of_modalias_node(node, info.type, sizeof(info.type)) < 0) { + dev_err(dev, "modalias failure on %s\n", node->full_name); + return ERR_PTR(-EINVAL); + } + ret = of_property_read_u32(node, "reg", ®); if (ret) { dev_err(dev, "device node %s has no valid reg property: %d\n", @@ -197,6 +212,7 @@ mipi_dsi_device_register_full(struct mipi_dsi_host *host, dsi->dev.of_node = info->node; dsi->channel = info->channel; + strlcpy(dsi->name, info->type, sizeof(dsi->name)); ret = mipi_dsi_device_add(dsi); if (ret) { diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h index ce5eae438fd1..a91411682e83 100644 --- a/include/drm/drm_mipi_dsi.h +++ b/include/drm/drm_mipi_dsi.h @@ -139,15 +139,19 @@ enum mipi_dsi_pixel_format { MIPI_DSI_FMT_RGB565, }; - /** +#define DSI_DEV_NAME_SIZE 20 + +/** * struct mipi_dsi_device_info - template for creating a mipi_dsi_device + * @type: DSI peripheral chip type * @channel: DSI virtual channel assigned to peripheral - * @node: pointer to OF device node + * @node: pointer to OF device node or NULL * * This is populated and passed to mipi_dsi_device_new to create a new * DSI device */ struct mipi_dsi_device_info { + char type[DSI_DEV_NAME_SIZE]; u32 channel; struct device_node *node; }; @@ -156,6 +160,7 @@ struct mipi_dsi_device_info { * struct mipi_dsi_device - DSI peripheral device * @host: DSI host for this peripheral * @dev: driver model device node for this peripheral + * @name: DSI peripheral chip type * @channel: virtual channel assigned to the peripheral * @format: pixel format for video mode * @lanes: number of active data lanes @@ -165,6 +170,7 @@ struct mipi_dsi_device { struct mipi_dsi_host *host; struct device dev; + char name[DSI_DEV_NAME_SIZE]; unsigned int channel; unsigned int lanes; enum mipi_dsi_pixel_format format; |