add stmac read mac form eeprom

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2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/drivers/firmware/arm_scmi/mailbox.c
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@@ -110,7 +110,7 @@
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 	struct scmi_chan_info *cinfo = p;
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 	struct scmi_mailbox *smbox = cinfo->transport_info;
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-	if (!IS_ERR(smbox->chan)) {
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+	if (smbox && !IS_ERR(smbox->chan)) {
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 		mbox_free_channel(smbox->chan);
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 		cinfo->transport_info = NULL;
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 		smbox->chan = NULL;
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@@ -158,6 +158,21 @@
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 	shmem_fetch_response(smbox->shmem, xfer);
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 }
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+static void mailbox_fetch_notification(struct scmi_chan_info *cinfo,
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+				       size_t max_len, struct scmi_xfer *xfer)
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+{
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+	struct scmi_mailbox *smbox = cinfo->transport_info;
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+
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+	shmem_fetch_notification(smbox->shmem, max_len, xfer);
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+}
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+
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+static void mailbox_clear_channel(struct scmi_chan_info *cinfo)
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+{
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+	struct scmi_mailbox *smbox = cinfo->transport_info;
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+
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+	shmem_clear_channel(smbox->shmem);
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+}
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+
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 static bool
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 mailbox_poll_done(struct scmi_chan_info *cinfo, struct scmi_xfer *xfer)
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 {
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@@ -166,13 +181,15 @@
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 	return shmem_poll_done(smbox->shmem, xfer);
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 }
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-static struct scmi_transport_ops scmi_mailbox_ops = {
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+static const struct scmi_transport_ops scmi_mailbox_ops = {
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 	.chan_available = mailbox_chan_available,
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 	.chan_setup = mailbox_chan_setup,
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 	.chan_free = mailbox_chan_free,
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 	.send_message = mailbox_send_message,
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 	.mark_txdone = mailbox_mark_txdone,
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 	.fetch_response = mailbox_fetch_response,
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+	.fetch_notification = mailbox_fetch_notification,
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+	.clear_channel = mailbox_clear_channel,
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 	.poll_done = mailbox_poll_done,
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 };
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