On Tue, Aug 8, 2017 at 2:59 PM, Sudeep Holla [off-list ref] wrote:

On 08/08/17 03:46, Jassi Brar wrote:

quoted

On Fri, Aug 4, 2017 at 8:01 PM, Sudeep Holla [off-list ref] wrote:

....

quoted

+int scmi_do_xfer(const struct scmi_handle *handle, struct scmi_xfer *xfer)
+{
+       int ret;
+       int timeout;
+       struct scmi_info *info = handle_to_scmi_info(handle);
+       struct device *dev = info->dev;
+
+       ret = mbox_send_message(info->tx_chan, xfer);

NAK

This is still not fixed. For the reasons mentioned many times like
here...   https://lkml.org/lkml/2017/7/7/465

Since SCPI and SCMI are based on doorbell designs like ACPI PCC, they
can't send any data as all the data are part of shared memory.

What data needs to be sent from SCPI/SCMI as part of mbox_send_message
in your opinion ? I can't think of any generic way to form this data.

https://lkml.org/lkml/2017/7/7/290