From: Markus Niebel <Markus.Niebel@xxxxxx>
add optional DSR support. This should go into the kernel, too
Signed-off-by: Markus Niebel <Markus.Niebel@xxxxxx>
---
drivers/mci/mci-core.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/mci/mci-core.c b/drivers/mci/mci-core.c
index 2c91ff2..b6d7d73 100644
--- a/drivers/mci/mci-core.c
+++ b/drivers/mci/mci-core.c
@@ -1746,6 +1746,7 @@ void mci_of_parse(struct mci_host *host)
{
struct device_node *np;
u32 bus_width;
+ u32 dsr_val;
if (!IS_ENABLED(CONFIG_OFDEVICE))
return;
@@ -1778,4 +1779,11 @@ void mci_of_parse(struct mci_host *host)
/* f_max is obtained from the optional "max-frequency" property */
of_property_read_u32(np, "max-frequency", &host->f_max);
+
+ if (!of_property_read_u32(np, "dsr", &dsr_val)) {
+ if (dsr_val < 0x10000) {
+ host->use_dsr = 1;
+ host->dsr_val = dsr_val;
+ }
+ }
}
--
1.7.9.5
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