diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/imx/dcss/dcss-dev.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/imx/dcss/dcss-dev.c b/drivers/gpu/drm/imx/dcss/dcss-dev.c index 4f3af0dfb344..d448bf1c205e 100644 --- a/drivers/gpu/drm/imx/dcss/dcss-dev.c +++ b/drivers/gpu/drm/imx/dcss/dcss-dev.c @@ -170,6 +170,7 @@ struct dcss_dev *dcss_dev_create(struct device *dev, bool hdmi_output) struct resource *res; struct dcss_dev *dcss; const struct dcss_type_data *devtype; + resource_size_t res_len; devtype = of_device_get_match_data(dev); if (!devtype) { @@ -183,6 +184,12 @@ struct dcss_dev *dcss_dev_create(struct device *dev, bool hdmi_output) return ERR_PTR(-EINVAL); } + res_len = res->end - res->start; + if (!devm_request_mem_region(dev, res->start, res_len, "dcss")) { + dev_err(dev, "cannot request memory region\n"); + return ERR_PTR(-EBUSY); + } + dcss = kzalloc(sizeof(*dcss), GFP_KERNEL); if (!dcss) return ERR_PTR(-ENOMEM); |