[PATCH 05/28] mfd: zl3073x: Add components versions register defs

Ivan Vecera
2025-04-07T17:29:25Z

Add register definitions for components versions and report them
during probe.

Reviewed-by: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: Ivan Vecera <ivecera@redhat.com>
---
drivers/mfd/zl3073x-core.c | 35 +++++++++++++++++++++++++++++++++++
1 file changed, 35 insertions(+)

diff --git a/drivers/mfd/zl3073x-core.c b/drivers/mfd/zl3073x-core.c
index 39d4c8608a740..b3091b00cffa8 100644
--- a/drivers/mfd/zl3073x-core.c
+++ b/drivers/mfd/zl3073x-core.c
@@ -1,10 +1,19 @@
// SPDX-License-Identifier: GPL-2.0-only

+#include <linux/bitfield.h>
#include <linux/module.h>
#include <linux/unaligned.h>
#include <net/devlink.h>
#include "zl3073x.h"

+/*
+ * Register Map Page 0, General
+ */
+ZL3073X_REG16_DEF(id, 0x0001);
+ZL3073X_REG16_DEF(revision, 0x0003);
+ZL3073X_REG16_DEF(fw_ver, 0x0005);
+ZL3073X_REG32_DEF(custom_config_ver, 0x0007);
+
/*
* Regmap ranges
*/
@@ -159,10 +168,36 @@ EXPORT_SYMBOL_NS_GPL(zl3073x_dev_alloc, "ZL3073X");

int zl3073x_dev_init(struct zl3073x_dev *zldev)
{
+ u16 id, revision, fw_ver;
struct devlink *devlink;
+ u32 cfg_ver;
+ int rc;

devm_mutex_init(zldev->dev, &zldev->lock);

+ scoped_guard(zl3073x, zldev) {
+ rc = zl3073x_read_id(zldev, &id);
+ if (rc)
+ return rc;
+ rc = zl3073x_read_revision(zldev, &revision);
+ if (rc)
+ return rc;
+ rc = zl3073x_read_fw_ver(zldev, &fw_ver);
+ if (rc)
+ return rc;
+ rc = zl3073x_read_custom_config_ver(zldev, &cfg_ver);
+ if (rc)
+ return rc;
+ }
+
+ dev_info(zldev->dev, "ChipID(%X), ChipRev(%X), FwVer(%u)\n",
+ id, revision, fw_ver);
+ dev_info(zldev->dev, "Custom config version: %lu.%lu.%lu.%lu\n",
+ FIELD_GET(GENMASK(31, 24), cfg_ver),
+ FIELD_GET(GENMASK(23, 16), cfg_ver),
+ FIELD_GET(GENMASK(15, 8), cfg_ver),
+ FIELD_GET(GENMASK(7, 0), cfg_ver));
+
devlink = priv_to_devlink(zldev);
devlink_register(devlink);

--
2.48.1