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authorJohn Keeping <john@metanate.com>2021-11-24 18:45:59 +0000
committerUlf Hansson <ulf.hansson@linaro.org>2021-12-14 21:35:25 +0100
commit0dc7a3ec30769aedb32036b785e69ee73d6b653f (patch)
tree2259606a88466cf77cc96ec321e98389375e4b9d
parente53e97f805cb1abeea000a61549d42f92cb10804 (diff)
mmc: dw_mmc: add common capabilities to replace caps
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> Tested-by: Nicolas Frattaroli <frattaroli.nicolas@gmail.com> Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com> Link: https://lore.kernel.org/r/20211124184603.3897245-2-john@metanate.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
-rw-r--r--drivers/mmc/host/dw_mmc.c3
-rw-r--r--drivers/mmc/host/dw_mmc.h3
2 files changed, 6 insertions, 0 deletions
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 195f2b2434b0..f2a14a434bef 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -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)
diff --git a/drivers/mmc/host/dw_mmc.h b/drivers/mmc/host/dw_mmc.h
index ce05d81477d9..771d5afa3136 100644
--- a/drivers/mmc/host/dw_mmc.h
+++ b/drivers/mmc/host/dw_mmc.h
@@ -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);