1 files changed, 0 insertions, 153 deletions
diff --git a/drivers/firmware/sigma.c b/drivers/firmware/sigma.c
deleted file mode 100644
index 1eedb6f7fdab..000000000000
--- a/drivers/firmware/sigma.c
+++ /dev/null
@@ -1,153 +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>
-
-static size_t sigma_action_size(struct sigma_action *sa)
-{
-	size_t payload = 0;
-
-	switch (sa->instr) {
-	case SIGMA_ACTION_WRITEXBYTES:
-	case SIGMA_ACTION_WRITESINGLE:
-	case SIGMA_ACTION_WRITESAFELOAD:
-		payload = sigma_action_len(sa);
-		break;
-	default:
-		break;
-	}
-
-	payload = ALIGN(payload, 2);
-
-	return payload + sizeof(struct sigma_action);
-}
-
-/*
- * Returns a negative error value in case of an error, 0 if processing of
- * the firmware should be stopped after this action, 1 otherwise.
- */
-static int
-process_sigma_action(struct i2c_client *client, struct sigma_action *sa)
-{
-	size_t len = sigma_action_len(sa);
-	int ret;
-
-	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:
-		ret = i2c_master_send(client, (void *)&sa->addr, len);
-		if (ret < 0)
-			return -EINVAL;
-		break;
-	case SIGMA_ACTION_DELAY:
-		udelay(len);
-		len = 0;
-		break;
-	case SIGMA_ACTION_END:
-		return 0;
-	default:
-		return -EINVAL;
-	}
-
-	return 1;
-}
-
-static int
-process_sigma_actions(struct i2c_client *client, struct sigma_firmware *ssfw)
-{
-	struct sigma_action *sa;
-	size_t size;
-	int ret;
-
-	while (ssfw->pos + sizeof(*sa) <= ssfw->fw->size) {
-		sa = (struct sigma_action *)(ssfw->fw->data + ssfw->pos);
-
-		size = sigma_action_size(sa);
-		ssfw->pos += size;
-		if (ssfw->pos > ssfw->fw->size || size == 0)
-			break;
-
-		ret = process_sigma_action(client, sa);
-
-		pr_debug("%s: action returned %i\n", __func__, ret);
-
-		if (ret <= 0)
-			return ret;
-	}
-
-	if (ssfw->pos != ssfw->fw->size)
-		return -EINVAL;
-
-	return 0;
-}
-
-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;
-
-	/*
-	 * Reject too small or unreasonable large files. The upper limit has been
-	 * chosen a bit arbitrarily, but it should be enough for all practical
-	 * purposes and having the limit makes it easier to avoid integer
-	 * overflows later in the loading process.
-	 */
-	if (fw->size < sizeof(*ssfw_head) || fw->size >= 0x4000000)
-		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 + sizeof(*ssfw_head),
-			fw->size - sizeof(*ssfw_head));
-	pr_debug("%s: crc=%x\n", __func__, crc);
-	if (crc != le32_to_cpu(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");