@@ -2856,6 +2856,9 @@ static int dw_mci_init_slot_caps(struct dw_mci_slot *slot)
if (host->pdata->pm_caps)
mmc->pm_caps = host->pdata->pm_caps;
+ if (drv_data)
+ mmc->caps |= drv_data->common_caps;
+
if (host->dev->of_node) {
ctrl_id = of_alias_get_id(host->dev->of_node, "mshc");
if (ctrl_id < 0)
@@ -550,6 +550,8 @@ struct dw_mci_slot {
* dw_mci driver data - dw-mshc implementation specific driver data.
* @caps: mmc subsystem specified capabilities of the controller(s).
* @num_caps: number of capabilities specified by @caps.
+ * @common_caps: mmc subsystem specified capabilities applicable to all of
+ * the controllers
* @init: early implementation specific initialization.
* @set_ios: handle bus specific extensions.
* @parse_dt: parse implementation specific device tree properties.
@@ -562,6 +564,7 @@ struct dw_mci_slot {
struct dw_mci_drv_data {
unsigned long *caps;
u32 num_caps;
+ u32 common_caps;
int (*init)(struct dw_mci *host);
void (*set_ios)(struct dw_mci *host, struct mmc_ios *ios);
int (*parse_dt)(struct dw_mci *host);
The caps field depends on the mshcN alias ID but for some devices this is unnecessary as the capabilities are the same for all instances sharing the same compatible. Add a common_caps field for this case which updates the host's capabilities without needing the mshcN alias ID. Signed-off-by: John Keeping <john@metanate.com> --- drivers/mmc/host/dw_mmc.c | 3 +++ drivers/mmc/host/dw_mmc.h | 3 +++ 2 files changed, 6 insertions(+)