linux-kernel - [PATCH v2 2/4] i2c: xgene-slimpro: Migrate to use generic PCC shmem related macros

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Message-Id: <20230927-pcc_defines-v2-2-0b8ffeaef2e5@arm.com>
Date:   Wed, 27 Sep 2023 17:26:11 +0100
From:   Sudeep Holla <sudeep.holla@....com>
To:     linux-hwmon@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-i2c@...r.kernel.org, linux-acpi@...r.kernel.org
Cc:     Sudeep Holla <sudeep.holla@....com>,
        "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
        Andi Shyti <andi.shyti@...nel.org>,
        Jean Delvare <jdelvare@...e.com>,
        Guenter Roeck <linux@...ck-us.net>,
        Huisong Li <lihuisong@...wei.com>
Subject: [PATCH v2 2/4] i2c: xgene-slimpro: Migrate to use generic PCC
 shmem related macros

Use the newly defined common and generic PCC shared memory region
related macros in this driver to replace the locally defined ones.

Reviewed-by: Andi Shyti <andi.shyti@...nel.org>
Signed-off-by: Sudeep Holla <sudeep.holla@....com>
---
 drivers/i2c/busses/i2c-xgene-slimpro.c | 16 ++++------------
 1 file changed, 4 insertions(+), 12 deletions(-)

diff --git a/drivers/i2c/busses/i2c-xgene-slimpro.c b/drivers/i2c/busses/i2c-xgene-slimpro.c
index fbc1ffbd2fa7..658396c9eeab 100644
--- a/drivers/i2c/busses/i2c-xgene-slimpro.c
+++ b/drivers/i2c/busses/i2c-xgene-slimpro.c
@@ -91,14 +91,6 @@
 
 #define SLIMPRO_IIC_MSG_DWORD_COUNT			3
 
-/* PCC related defines */
-#define PCC_SIGNATURE			0x50424300
-#define PCC_STS_CMD_COMPLETE		BIT(0)
-#define PCC_STS_SCI_DOORBELL		BIT(1)
-#define PCC_STS_ERR			BIT(2)
-#define PCC_STS_PLAT_NOTIFY		BIT(3)
-#define PCC_CMD_GENERATE_DB_INT		BIT(15)
-
 struct slimpro_i2c_dev {
 	struct i2c_adapter adapter;
 	struct device *dev;
@@ -160,11 +152,11 @@ static void slimpro_i2c_pcc_rx_cb(struct mbox_client *cl, void *msg)
 
 	/* Check if platform sends interrupt */
 	if (!xgene_word_tst_and_clr(&generic_comm_base->status,
-				    PCC_STS_SCI_DOORBELL))
+				    PCC_STATUS_SCI_DOORBELL))
 		return;
 
 	if (xgene_word_tst_and_clr(&generic_comm_base->status,
-				   PCC_STS_CMD_COMPLETE)) {
+				   PCC_STATUS_CMD_COMPLETE)) {
 		msg = generic_comm_base + 1;
 
 		/* Response message msg[1] contains the return value. */
@@ -186,10 +178,10 @@ static void slimpro_i2c_pcc_tx_prepare(struct slimpro_i2c_dev *ctx, u32 *msg)
 		   cpu_to_le32(PCC_SIGNATURE | ctx->mbox_idx));
 
 	WRITE_ONCE(generic_comm_base->command,
-		   cpu_to_le16(SLIMPRO_MSG_TYPE(msg[0]) | PCC_CMD_GENERATE_DB_INT));
+		   cpu_to_le16(SLIMPRO_MSG_TYPE(msg[0]) | PCC_CMD_GENERATE_DB_INTR));
 
 	status = le16_to_cpu(READ_ONCE(generic_comm_base->status));
-	status &= ~PCC_STS_CMD_COMPLETE;
+	status &= ~PCC_STATUS_CMD_COMPLETE;
 	WRITE_ONCE(generic_comm_base->status, cpu_to_le16(status));
 
 	/* Copy the message to the PCC comm space */

-- 
2.42.0