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Mon, 6 Jan 2025 17:15:39 +0000 (GMT) From: Ninad Palsule To: openbmc@lists.ozlabs.org, andrew@codeconstruct.com.au, joel@jms.id.au, eajames@linux.ibm.com Subject: [PATCH linux dev-6.6 v1 1/4] hwmon: (pmbus/core) Add PMBUS_REVISION in debugfs Date: Mon, 6 Jan 2025 11:15:25 -0600 Message-ID: <20250106171530.1063148-2-ninad@linux.ibm.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250106171530.1063148-1-ninad@linux.ibm.com> References: <20250106171530.1063148-1-ninad@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: axogfRzxNd0e-WcEnDeQPhIxkspnsrGV X-Proofpoint-GUID: axogfRzxNd0e-WcEnDeQPhIxkspnsrGV X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1051,Hydra:6.0.680,FMLib:17.12.62.30 definitions=2024-10-15_01,2024-10-11_01,2024-09-30_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 spamscore=0 suspectscore=0 mlxscore=0 mlxlogscore=999 impostorscore=0 clxscore=1015 adultscore=0 phishscore=0 priorityscore=1501 lowpriorityscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2411120000 definitions=main-2501060145 X-Spam-Status: No, score=-0.7 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, RCVD_IN_DNSWL_LOW,RCVD_IN_MSPIKE_H2,SPF_HELO_NONE,SPF_PASS autolearn=disabled version=4.0.0 X-Spam-Checker-Version: SpamAssassin 4.0.0 (2022-12-13) on lists.ozlabs.org X-BeenThere: openbmc@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Development list for OpenBMC List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Ninad Palsule Errors-To: openbmc-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "openbmc" Add debugfs file for the PMBUS_REVISION command. This command provides information about PMBus protocol revision number. Signed-off-by: Ninad Palsule --- drivers/hwmon/pmbus/pmbus_core.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/drivers/hwmon/pmbus/pmbus_core.c b/drivers/hwmon/pmbus/pmbus_core.c index 3fe89a3f5f58..ff3271104305 100644 --- a/drivers/hwmon/pmbus/pmbus_core.c +++ b/drivers/hwmon/pmbus/pmbus_core.c @@ -3397,11 +3397,11 @@ static int pmbus_init_debugfs(struct i2c_client *client, /* * Allocate the max possible entries we need. - * 6 entries device-specific + * 7 entries device-specific * 10 entries page-specific */ entries = devm_kcalloc(data->dev, - 6 + data->info->pages * 10, sizeof(*entries), + 7 + data->info->pages * 10, sizeof(*entries), GFP_KERNEL); if (!entries) return -ENOMEM; @@ -3414,6 +3414,15 @@ static int pmbus_init_debugfs(struct i2c_client *client, * assume that values of the following registers are the same for all * pages and report values only for page 0. */ + if (pmbus_check_byte_register(client, 0, PMBUS_REVISION)) { + entries[idx].client = client; + entries[idx].page = 0; + entries[idx].reg = PMBUS_REVISION; + debugfs_create_file("revision", 0444, data->debugfs, + &entries[idx++], + &pmbus_debugfs_ops); + } + if (pmbus_check_block_register(client, 0, PMBUS_MFR_ID)) { entries[idx].client = client; entries[idx].page = 0;