| Message ID | 1525741460-109455-1-git-send-email-shawn.lin@rock-chips.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Tue, May 08, 2018 at 09:04:19AM +0800, Shawn Lin wrote: > post-power-on-delay-ms woule be reused to substitute the hard-coded 10ms > delay waiting for power supply to be stable, specificed by individual > platform/board. Default to 10ms as before, if no available. > > Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com> > > --- > > Changes in v3: > - reused post-power-on-delay-ms suggested by Rob > > Changes in v2: None > > Documentation/devicetree/bindings/mmc/mmc.txt | 4 ++++ > 1 file changed, 4 insertions(+) Reviewed-by: Rob Herring <robh@kernel.org> -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On 8 May 2018 at 03:04, Shawn Lin <shawn.lin@rock-chips.com> wrote: > post-power-on-delay-ms woule be reused to substitute the hard-coded 10ms > delay waiting for power supply to be stable, specificed by individual > platform/board. Default to 10ms as before, if no available. > > Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com> Thanks, applied for next! Kind regards Uffe > > --- > > Changes in v3: > - reused post-power-on-delay-ms suggested by Rob > > Changes in v2: None > > Documentation/devicetree/bindings/mmc/mmc.txt | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/Documentation/devicetree/bindings/mmc/mmc.txt b/Documentation/devicetree/bindings/mmc/mmc.txt > index 467cd7b..a1d0cf4 100644 > --- a/Documentation/devicetree/bindings/mmc/mmc.txt > +++ b/Documentation/devicetree/bindings/mmc/mmc.txt > @@ -56,6 +56,10 @@ Optional properties: > - fixed-emmc-driver-type: for non-removable eMMC, enforce this driver type. > The value <n> is the driver type as specified in the eMMC specification > (table 206 in spec version 5.1). > +- post-power-on-delay-ms : It was invented for MMC pwrseq-simple which could > + be referred to mmc-pwrseq-simple.txt. But now it's reused as a tunable delay > + waiting for I/O signalling and card power supply to be stable, regardless of > + whether pwrseq-simple is used. Default to 10ms if no available. > > *NOTE* on CD and WP polarity. To use common for all SD/MMC host controllers line > polarity properties, we have to fix the meaning of the "normal" and "inverted" > -- > 1.9.1 > > -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/Documentation/devicetree/bindings/mmc/mmc.txt b/Documentation/devicetree/bindings/mmc/mmc.txt index 467cd7b..a1d0cf4 100644 --- a/Documentation/devicetree/bindings/mmc/mmc.txt +++ b/Documentation/devicetree/bindings/mmc/mmc.txt @@ -56,6 +56,10 @@ Optional properties: - fixed-emmc-driver-type: for non-removable eMMC, enforce this driver type. The value <n> is the driver type as specified in the eMMC specification (table 206 in spec version 5.1). +- post-power-on-delay-ms : It was invented for MMC pwrseq-simple which could + be referred to mmc-pwrseq-simple.txt. But now it's reused as a tunable delay + waiting for I/O signalling and card power supply to be stable, regardless of + whether pwrseq-simple is used. Default to 10ms if no available. *NOTE* on CD and WP polarity. To use common for all SD/MMC host controllers line polarity properties, we have to fix the meaning of the "normal" and "inverted"
post-power-on-delay-ms woule be reused to substitute the hard-coded 10ms delay waiting for power supply to be stable, specificed by individual platform/board. Default to 10ms as before, if no available. Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com> --- Changes in v3: - reused post-power-on-delay-ms suggested by Rob Changes in v2: None Documentation/devicetree/bindings/mmc/mmc.txt | 4 ++++ 1 file changed, 4 insertions(+)