[PATCH 3/5] drivers: nvmem: remove KVX OTP support

[clement.leger at linux.dev]

From: Clément Léger <clement.leger at linux.dev>

Remove the kvx OTP driver.

Signed-off-by: Clément Léger <clement.leger at linux.dev>
---
 drivers/nvmem/Kconfig      |  7 ---
 drivers/nvmem/Makefile     |  3 --
 drivers/nvmem/kvx-otp-nv.c | 95 --------------------------------------
 3 files changed, 105 deletions(-)
 delete mode 100644 drivers/nvmem/kvx-otp-nv.c

diff --git a/drivers/nvmem/Kconfig b/drivers/nvmem/Kconfig
index d66c4a88fe..b7501798cb 100644
--- a/drivers/nvmem/Kconfig
+++ b/drivers/nvmem/Kconfig
@@ -106,13 +106,6 @@ config STM32_BSEC_OPTEE_TA
 	  trusted application STM32MP BSEC in addition to the older SMC SiP
 	  service.
 
-config KVX_OTP_NV
-	tristate "kalray KVX OTP Non volatile regs Support"
-	depends on KVX
-	help
-	  This is a simple driver to dump specified values of KVX OTP non
-	  volatile regs.
-
 config STARFIVE_OTP
 	tristate "Starfive OTP Support"
 	depends on SOC_STARFIVE
diff --git a/drivers/nvmem/Makefile b/drivers/nvmem/Makefile
index cb5e6d6330..8f1bb0bf44 100644
--- a/drivers/nvmem/Makefile
+++ b/drivers/nvmem/Makefile
@@ -28,9 +28,6 @@ obj-$(CONFIG_STM32_BSEC)	+= nvmem_bsec.o
 nvmem_bsec-y			:= bsec.o
 nvmem_bsec-$(CONFIG_STM32_BSEC_OPTEE_TA) += stm32-bsec-optee-ta.o
 
-obj-$(CONFIG_KVX_OTP_NV)	+= nvmem-kvx-otp-nv.o
-nvmem-kvx-otp-nv-y		:= kvx-otp-nv.o
-
 obj-$(CONFIG_NVMEM_ROCKCHIP_OTP)+= rockchip-otp.o
 obj-$(CONFIG_STARFIVE_OTP)	+= starfive-otp.o
 obj-$(CONFIG_IMX_OCOTP_ELE)	+= imx-ocotp-ele.o
diff --git a/drivers/nvmem/kvx-otp-nv.c b/drivers/nvmem/kvx-otp-nv.c
deleted file mode 100644
index c4591f5822..0000000000
--- a/drivers/nvmem/kvx-otp-nv.c
+++ /dev/null
@@ -1,95 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Copyright (C) 2020 Kalray Inc., Clément Léger
- */
-
-#include <common.h>
-#include <driver.h>
-#include <malloc.h>
-#include <xfuncs.h>
-#include <errno.h>
-#include <init.h>
-#include <net.h>
-#include <io.h>
-
-#include <linux/nvmem-provider.h>
-
-#define OTP_NV_ALIGN		4
-#define OTP_NV_ALIGN_MASK	(OTP_NV_ALIGN - 1)
-
-struct kvx_otp_nv_priv {
-	void __iomem *base;
-};
-
-static int kvx_otp_nv_read(void *context, unsigned int offset,
-			  void *_val, size_t bytes)
-{
-	struct kvx_otp_nv_priv *priv = context;
-	u8 *val = _val;
-	u32 tmp, copy_size;
-	u8 skip = offset & OTP_NV_ALIGN_MASK;
-
-	offset &= ~OTP_NV_ALIGN_MASK;
-
-	while (bytes) {
-		tmp = readl(priv->base + offset);
-		if (skip != 0)
-			copy_size = min(OTP_NV_ALIGN - skip, (int) bytes);
-		else
-			copy_size = min(bytes, sizeof(tmp));
-
-		memcpy(val, ((u8 *) &tmp) + skip, copy_size);
-		skip = 0;
-
-		bytes -= copy_size;
-		val += copy_size;
-		offset += OTP_NV_ALIGN;
-	}
-
-	return 0;
-}
-
-static const struct of_device_id kvx_otp_nv_match[] = {
-	{ .compatible = "kalray,kvx-otp-nv" },
-	{ /* sentinel */},
-};
-MODULE_DEVICE_TABLE(of, kvx_otp_nv_match);
-
-static int kvx_otp_nv_probe(struct device *dev)
-{
-	struct resource *res;
-	struct nvmem_device *nvmem;
-	struct nvmem_config econfig = { 0 };
-	struct kvx_otp_nv_priv *priv;
-
-	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
-	if (!priv)
-		return -ENOMEM;
-
-	res = dev_request_mem_resource(dev, 0);
-	if (IS_ERR(res))
-		return PTR_ERR(res);
-
-	priv->base = IOMEM(res->start);
-
-	econfig.name = "kvx-nv-regbank";
-	econfig.stride = 1;
-	econfig.word_size = 1;
-	econfig.size = resource_size(res);
-	econfig.dev = dev;
-	econfig.priv = priv;
-	econfig.reg_read = kvx_otp_nv_read;
-
-	dev->priv = priv;
-
-	nvmem = nvmem_register(&econfig);
-
-	return PTR_ERR_OR_ZERO(nvmem);
-}
-
-static struct driver kvx_otp_nv_driver = {
-	.name	= "kvx-otp-nv",
-	.probe	= kvx_otp_nv_probe,
-	.of_compatible = DRV_OF_COMPAT(kvx_otp_nv_match),
-};
-postcore_platform_driver(kvx_otp_nv_driver);
-- 
2.55.0