From: Markus Niebel <list-09_barebox@tqsc.de>
To: barebox@lists.infradead.org
Cc: Markus Niebel <Markus.Niebel@tqs.de>
Subject: [PATCH 2/4] mci: add device tree support for DSR
Date: Tue, 14 Jan 2014 09:23:35 +0100 [thread overview]
Message-ID: <1389687817-30882-3-git-send-email-list-09_barebox@tqsc.de> (raw)
In-Reply-To: <1389687817-30882-1-git-send-email-list-09_barebox@tqsc.de>
From: Markus Niebel <Markus.Niebel@tqs.de>
add optional DSR support. This should go into the kernel, too
Signed-off-by: Markus Niebel <Markus.Niebel@tqs.de>
---
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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next prev parent reply other threads:[~2014-01-14 8:15 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-14 8:23 [PATCH v2 0/4] mmc: add setdsr support Markus Niebel
2014-01-14 8:23 ` [PATCH 1/4] mci: add DSR support Markus Niebel
2014-01-14 8:23 ` Markus Niebel [this message]
2014-01-14 8:23 ` [PATCH 3/4] mci: imx-esdhc: " Markus Niebel
2014-01-14 8:49 ` Alexander Aring
2014-01-14 14:26 ` AW: " Markus Niebel
2014-01-14 8:23 ` [PATCH 4/4] boards: tqma53: add DSR support for eMMC Markus Niebel
2014-01-15 14:23 ` [PATCH v2 0/4] mmc: add setdsr support Sascha Hauer
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