>From datasheet, when READY bit is set inside PM_CTRL register, it means that
device is already in *normal* (D0) mode => it doesn't need to be wake-up.
With this patch, we only wake-up (writing on TEST_BYTE register) if PM_MODE
bits of PM_CTRL register is in sleep (D1/D2) mode.
Signed-off-by: Bertrand Cachet <bertrand.cac...@heig-vd.ch>
---
v2: Improve code styling by grouping two narrow comments.
v3: Place versions information under scissors line.
drivers/net/smc911x.h | 7 +++++--
1 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/net/smc911x.h b/drivers/net/smc911x.h
index 8ce08a9..00e5b2e 100644
--- a/drivers/net/smc911x.h
+++ b/drivers/net/smc911x.h
@@ -471,8 +471,11 @@ static void smc911x_reset(struct eth_device *dev)
{
int timeout;
- /* Take out of PM setting first */
- if (smc911x_reg_read(dev, PMT_CTRL) & PMT_CTRL_READY) {
+ /*
+ * Take out of PM setting first
+ * Device is already wake up if PMT_CTRL_READY bit is set
+ */
+ if ((smc911x_reg_read(dev, PMT_CTRL) & PMT_CTRL_READY) == 0) {
/* Write to the bytetest will take out of powerdown */
smc911x_reg_write(dev, BYTE_TEST, 0x0);
--
1.7.5.4
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