linux-kernel - [PATCH v4 1/4] nvmem: eeprom: at25: add support for FRAM

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Message-Id: <20210520054714.8736-2-jiri.prchal@aksignal.cz>
Date:   Thu, 20 May 2021 07:47:11 +0200
From:   Jiri Prchal <jiri.prchal@...ignal.cz>
To:     devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Rob Herring <robh+dt@...nel.org>,
        Christian Eggers <ceggers@...i.de>,
        Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Prchal <jiri.prchal@...ignal.cz>
Subject: [PATCH v4 1/4] nvmem: eeprom: at25: add support for FRAM

Added enum and string for FRAM to expose it as "fram".

Signed-off-by: Jiri Prchal <jiri.prchal@...ignal.cz>
---
v2: no change here
v3: resend and added more recipients
v4: resend
---
 drivers/nvmem/core.c           | 4 ++++
 include/linux/nvmem-provider.h | 1 +
 2 files changed, 5 insertions(+)

diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
index 177f5bf27c6d..01ef9a934b0a 100644
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -180,6 +180,7 @@ static const char * const nvmem_type_str[] = {
 	[NVMEM_TYPE_EEPROM] = "EEPROM",
 	[NVMEM_TYPE_OTP] = "OTP",
 	[NVMEM_TYPE_BATTERY_BACKED] = "Battery backed",
+	[NVMEM_TYPE_FRAM] = "FRAM",
 };

 #ifdef CONFIG_DEBUG_LOCK_ALLOC
@@ -359,6 +360,9 @@ static int nvmem_sysfs_setup_compat(struct nvmem_device *nvmem,
 	if (!config->base_dev)
 		return -EINVAL;

+	if (config->type == NVMEM_TYPE_FRAM)
+		bin_attr_nvmem_eeprom_compat.attr.name = "fram";
+
 	nvmem->eeprom = bin_attr_nvmem_eeprom_compat;
 	nvmem->eeprom.attr.mode = nvmem_bin_attr_get_umode(nvmem);
 	nvmem->eeprom.size = nvmem->size;
diff --git a/include/linux/nvmem-provider.h b/include/linux/nvmem-provider.h
index e162b757b6d5..890003565761 100644
--- a/include/linux/nvmem-provider.h
+++ b/include/linux/nvmem-provider.h
@@ -25,6 +25,7 @@ enum nvmem_type {
 	NVMEM_TYPE_EEPROM,
 	NVMEM_TYPE_OTP,
 	NVMEM_TYPE_BATTERY_BACKED,
+	NVMEM_TYPE_FRAM,
 };

 #define NVMEM_DEVID_NONE	(-1)
--
2.25.1