linux-kernel - [PATCH v6 04/17] firmware: arm

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Date:   Thu, 29 Dec 2022 18:22:40 +0000
From:   Cristian Marussi <cristian.marussi@....com>
To:     linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Cc:     sudeep.holla@....com, james.quinlan@...adcom.com,
        Jonathan.Cameron@...wei.com, f.fainelli@...il.com,
        etienne.carriere@...aro.org, vincent.guittot@...aro.org,
        souvik.chakravarty@....com, wleavitt@...vell.com,
        peter.hilber@...nsynergy.com, nicola.mazzucato@....com,
        tarek.el-sherbiny@....com, quic_kshivnan@...cinc.com,
        cristian.marussi@....com
Subject: [PATCH v6 04/17] firmware: arm_scmi: Add flags field to xfer

Add a flags field to xfer and define a flagbit and related macro to easily
identify xfers originated from Raw transmissions.

Signed-off-by: Cristian Marussi <cristian.marussi@....com>
---
v5 --> v6
- convert is_raw boolean to a bitflag
---
 drivers/firmware/arm_scmi/protocols.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/firmware/arm_scmi/protocols.h b/drivers/firmware/arm_scmi/protocols.h
index 2f3bf691db7c..b5941beb8b03 100644
--- a/drivers/firmware/arm_scmi/protocols.h
+++ b/drivers/firmware/arm_scmi/protocols.h
@@ -115,6 +115,7 @@ struct scmi_msg_hdr {
  *	    - SCMI_XFER_SENT_OK -> SCMI_XFER_RESP_OK [ -> SCMI_XFER_DRESP_OK ]
  *	    - SCMI_XFER_SENT_OK -> SCMI_XFER_DRESP_OK
  *	      (Missing synchronous response is assumed OK and ignored)
+ * @flags: Optional flags associated to this xfer.
  * @lock: A spinlock to protect state and busy fields.
  * @priv: A pointer for transport private usage.
  */
@@ -135,6 +136,9 @@ struct scmi_xfer {
 #define SCMI_XFER_RESP_OK	1
 #define SCMI_XFER_DRESP_OK	2
 	int state;
+#define SCMI_XFER_FLAG_IS_RAW	BIT(0)
+#define SCMI_XFER_IS_RAW(x)	((x)->flags & SCMI_XFER_FLAG_IS_RAW)
+	int flags;
 	/* A lock to protect state and busy fields */
 	spinlock_t lock;
 	void *priv;
-- 
2.34.1