3 files changed, 0 insertions, 131 deletions

diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig
index efba163595d..9b00072a020 100644
--- a/drivers/firmware/Kconfig
+++ b/drivers/firmware/Kconfig
@@ -145,18 +145,6 @@ config ISCSI_IBFT
 	  detect iSCSI boot parameters dynamically during system boot, say Y.
 	  Otherwise, say N.
 
-config SIGMA
-	tristate "SigmaStudio firmware loader"
-	depends on I2C
-	select CRC32
-	default n
-	help
-	  Enable helper functions for working with Analog Devices SigmaDSP
-	  parts and binary firmwares produced by Analog Devices SigmaStudio.
-
-	  If unsure, say N here.  Drivers that need these helpers will select
-	  this option automatically.
-
 source "drivers/firmware/google/Kconfig"
 
 endmenu
diff --git a/drivers/firmware/Makefile b/drivers/firmware/Makefile
index 47338c97912..5a7e2739972 100644
--- a/drivers/firmware/Makefile
+++ b/drivers/firmware/Makefile
@@ -12,6 +12,5 @@ obj-$(CONFIG_DMIID)		+= dmi-id.o
 obj-$(CONFIG_ISCSI_IBFT_FIND)	+= iscsi_ibft_find.o
 obj-$(CONFIG_ISCSI_IBFT)	+= iscsi_ibft.o
 obj-$(CONFIG_FIRMWARE_MEMMAP)	+= memmap.o
-obj-$(CONFIG_SIGMA)		+= sigma.o
 
 obj-$(CONFIG_GOOGLE_FIRMWARE)	+= google/
diff --git a/drivers/firmware/sigma.c b/drivers/firmware/sigma.c
deleted file mode 100644
index f10fc521951..00000000000
--- a/drivers/firmware/sigma.c
+++ /dev/null
@@ -1,118 +0,0 @@
-/*
- * Load Analog Devices SigmaStudio firmware files
- *
- * Copyright 2009-2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-
-#include <linux/crc32.h>
-#include <linux/delay.h>
-#include <linux/firmware.h>
-#include <linux/kernel.h>
-#include <linux/i2c.h>
-#include <linux/module.h>
-#include <linux/sigma.h>
-
-/* Return: 0==OK, <0==error, =1 ==no more actions */
-static int
-process_sigma_action(struct i2c_client *client, struct sigma_firmware *ssfw)
-{
-	struct sigma_action *sa = (void *)(ssfw->fw->data + ssfw->pos);
-	size_t len = sigma_action_len(sa);
-	int ret = 0;
-
-	pr_debug("%s: instr:%i addr:%#x len:%zu\n", __func__,
-		sa->instr, sa->addr, len);
-
-	switch (sa->instr) {
-	case SIGMA_ACTION_WRITEXBYTES:
-	case SIGMA_ACTION_WRITESINGLE:
-	case SIGMA_ACTION_WRITESAFELOAD:
-		if (ssfw->fw->size < ssfw->pos + len)
-			return -EINVAL;
-		ret = i2c_master_send(client, (void *)&sa->addr, len);
-		if (ret < 0)
-			return -EINVAL;
-		break;
-
-	case SIGMA_ACTION_DELAY:
-		ret = 0;
-		udelay(len);
-		len = 0;
-		break;
-
-	case SIGMA_ACTION_END:
-		return 1;
-
-	default:
-		return -EINVAL;
-	}
-
-	/* when arrive here ret=0 or sent data */
-	ssfw->pos += sigma_action_size(sa, len);
-	return ssfw->pos == ssfw->fw->size;
-}
-
-static int
-process_sigma_actions(struct i2c_client *client, struct sigma_firmware *ssfw)
-{
-	pr_debug("%s: processing %p\n", __func__, ssfw);
-
-	while (1) {
-		int ret = process_sigma_action(client, ssfw);
-		pr_debug("%s: action returned %i\n", __func__, ret);
-		if (ret == 1)
-			return 0;
-		else if (ret)
-			return ret;
-	}
-}
-
-int process_sigma_firmware(struct i2c_client *client, const char *name)
-{
-	int ret;
-	struct sigma_firmware_header *ssfw_head;
-	struct sigma_firmware ssfw;
-	const struct firmware *fw;
-	u32 crc;
-
-	pr_debug("%s: loading firmware %s\n", __func__, name);
-
-	/* first load the blob */
-	ret = request_firmware(&fw, name, &client->dev);
-	if (ret) {
-		pr_debug("%s: request_firmware() failed with %i\n", __func__, ret);
-		return ret;
-	}
-	ssfw.fw = fw;
-
-	/* then verify the header */
-	ret = -EINVAL;
-	if (fw->size < sizeof(*ssfw_head))
-		goto done;
-
-	ssfw_head = (void *)fw->data;
-	if (memcmp(ssfw_head->magic, SIGMA_MAGIC, ARRAY_SIZE(ssfw_head->magic)))
-		goto done;
-
-	crc = crc32(0, fw->data, fw->size);
-	pr_debug("%s: crc=%x\n", __func__, crc);
-	if (crc != ssfw_head->crc)
-		goto done;
-
-	ssfw.pos = sizeof(*ssfw_head);
-
-	/* finally process all of the actions */
-	ret = process_sigma_actions(client, &ssfw);
-
- done:
-	release_firmware(fw);
-
-	pr_debug("%s: loaded %s\n", __func__, name);
-
-	return ret;
-}
-EXPORT_SYMBOL(process_sigma_firmware);
-
-MODULE_LICENSE("GPL");