Hello Heiko, On 06/02/2015 11:15 PM, Heiko Stübner wrote: > Am Dienstag, 2. Juni 2015, 10:11:03 schrieb Javier Martinez Canillas: >> Hello, >> >> Newer Chromebooks have more than one Embedded Controller (EC) in the >> system. These additional ECs are connected through I2C with a host EC >> which is the one that is connected to the Application Processor (AP) >> through different transports (I2C, SPI or LPC). >> >> So on these platforms, sub-processors are chained to each other: >> >> AP <--> Host EC <--> Power Delivery (PD) EC >> >> The AP sends commands to the additional EC through the host EC using >> a set of passthru commands and the host redirects to the correct EC. >> >> This is a v4 of a series that adds support for multiple EC in a system >> and also for the protocol version 3 that is used on newer ECs. >> >> Most patches were taken from the downstream ChromiumOS v3.14 tree with >> fixes squashed, split to minimise the cross subsystem churn and changes >> for mainline inclusion but were not modified functionality wise. >> >> This version addresses a lot of issues pointed out by Lee Jones on the v3 >> posted before [0]. >> >> The patches are based on top of "[PATCH 0/2] mfd: cros_ec: Small cleanups" >> [1] that were posted before and was already picked by Lee Jones. >> >> Testing was done on some Chromebooks that have a single EC and support >> protocol v2 such as the Exynos5250 Snow, Exynos5420 Peach Pit and Exynos5800 >> Peach Pi to be sure that no regressions were introduced for these machines. > > I just gave this a try on veyron and everything still works as expected. > > All patches except "[PATCH v4 6/8] mfd: cros_ec: Support multiple EC in a > system" already have Tested-by tags, so this patch now is also > > Tested-by: Heiko Stuebner <heiko@xxxxxxxxx> > Thanks a lot for testing the series again. Now let's wait for Olof to review/ack/provide feedback on patches #1-#6 that touches drivers/platform/chrome, so Lee can merge through his tree. > > Heiko > Best regards, Javier -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
