Hi Javier, Am Donnerstag, 16. April 2015, 09:29:59 schrieb Javier Martinez Canillas: > Hello, > > On 04/06/2015 06:14 PM, Javier Martinez Canillas wrote: > > 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 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 series adds support for multiple EC in a system and also for the > > protocol version 3 that is used on newer ECs. > > Any comments about this series? I know that we are in the middle of the > merge window but it would be great if I can get some feedback to get it > ready and re-post for 4.2 (addressing any issue) once 4.1-rc1 is out. > > > 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. > > > > The series depend on "platform/chrome: Add user-space dev inferface > > support" [0] that is already merged in the chrome-platform tree so > > probably these patches should also go through that tree once the mfd > > patches are acked. > > > > The series is a resend of a patch-set posted a month ago [1]. The only big > > As I said, the original patchset was post about a month ago and this re-sent > 10 days ago so it would be great to have some feedback on the series. on a veyron-pinky-rev2, with cros-ec-spi spi0.0: using proto v3 cros-ec-spi spi0.0: no PD chip found: -19 Tested-by: Heiko Stuebner <heiko@xxxxxxxxx> with the catch of the device needing two additional patches from the Chromeos- tree: c7ae1e2ef996 mfd: cros ec: spi: put the delay and send msg in one cycle 8558460450c1 mfd: cros ec: spi: Add delay for asserting CS and I'm not sure if they are submitted yet. Heiko -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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