linux-kernel - [PATCH v2 9/9] crypto: ccp: Add doorbell register offset

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Message-ID: <20230302194235.1724-10-mario.limonciello@amd.com>
Date:   Thu, 2 Mar 2023 13:42:32 -0600
From:   Mario Limonciello <mario.limonciello@....com>
To:     Jan Dąbroś <jsd@...ihalf.com>,
        Grzegorz Bernacki <gjb@...ihalf.com>,
        <Rijo-john.Thomas@....com>, <Thomas.Lendacky@....com>,
        <herbert@...dor.apana.org.au>,
        Tom Lendacky <thomas.lendacky@....com>,
        "John Allen" <john.allen@....com>
CC:     Mario Limonciello <mario.limonciello@....com>,
        "David S. Miller" <davem@...emloft.net>,
        <linux-crypto@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH v2 9/9] crypto: ccp: Add doorbell register offset

The PSP in Skyrim uses i2c arbitration with a doorbell.
Add this offset so that the communication can work.

Link: Link: https://lore.kernel.org/linux-i2c/20220916131854.687371-3-jsd@semihalf.com/
Signed-off-by: Mario Limonciello <mario.limonciello@....com>
---
v1->v2:
 * New patch
---
 drivers/crypto/ccp/sp-pci.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/crypto/ccp/sp-pci.c b/drivers/crypto/ccp/sp-pci.c
index 18aa902eb5ce..a4efcaee43d8 100644
--- a/drivers/crypto/ccp/sp-pci.c
+++ b/drivers/crypto/ccp/sp-pci.c
@@ -365,6 +365,7 @@ static const struct platform_access_vdata pa_v1 = {
 	.cmdresp_reg		= 0x10570,	/* C2PMSG_28 */
 	.cmdbuff_addr_lo_reg	= 0x10574,	/* C2PMSG_29 */
 	.cmdbuff_addr_hi_reg	= 0x10578,	/* C2PMSG_30 */
+	.doorbell_reg		= 0x10a40,	/* C2PMSG_80 */
 };
 
 static const struct psp_vdata pspv1 = {
-- 
2.34.1