diff --git a/drivers/staging/media/atomisp/i2c/gc2235.c b/drivers/staging/media/atomisp/i2c/gc2235.c
index 37a83c759874..38f6de13f8fd 100644
--- a/drivers/staging/media/atomisp/i2c/gc2235.c
+++ b/drivers/staging/media/atomisp/i2c/gc2235.c
@@ -278,7 +278,7 @@ static int gc2235_get_intg_factor(struct i2c_client *client,
 	if (ret)
 		return ret;
 
-	buf->crop_horizontal_start = ((u16)reg_val_h << 8) | (u16)reg_val;
+	buf->crop_horizontal_start = (reg_val_h << 8) | reg_val;
 
 	ret =  gc2235_read_reg(client, GC2235_8BIT,
 					GC2235_V_CROP_START_H, &reg_val_h);
@@ -287,7 +287,7 @@ static int gc2235_get_intg_factor(struct i2c_client *client,
 	if (ret)
 		return ret;
 
-	buf->crop_vertical_start = ((u16)reg_val_h << 8) | (u16)reg_val;
+	buf->crop_vertical_start = (reg_val_h << 8) | reg_val;
 
 	ret = gc2235_read_reg(client, GC2235_8BIT,
 					GC2235_H_OUTSIZE_H, &reg_val_h);
@@ -295,7 +295,7 @@ static int gc2235_get_intg_factor(struct i2c_client *client,
 					GC2235_H_OUTSIZE_L, &reg_val);
 	if (ret)
 		return ret;
-	buf->output_width = ((u16)reg_val_h << 8) | (u16)reg_val;
+	buf->output_width = (reg_val_h << 8) | reg_val;
 
 	ret = gc2235_read_reg(client, GC2235_8BIT,
 					GC2235_V_OUTSIZE_H, &reg_val_h);
@@ -303,7 +303,7 @@ static int gc2235_get_intg_factor(struct i2c_client *client,
 					GC2235_V_OUTSIZE_L, &reg_val);
 	if (ret)
 		return ret;
-	buf->output_height = ((u16)reg_val_h << 8) | (u16)reg_val;
+	buf->output_height = (reg_val_h << 8) | reg_val;
 
 	buf->crop_horizontal_end = buf->crop_horizontal_start +
 						buf->output_width - 1;
@@ -317,7 +317,7 @@ static int gc2235_get_intg_factor(struct i2c_client *client,
 	if (ret)
 		return ret;
 
-	dummy = ((u16)reg_val_h << 8) | (u16)reg_val;
+	dummy = (reg_val_h << 8) | reg_val;
 
 	ret = gc2235_read_reg(client, GC2235_8BIT,
 					GC2235_SH_DELAY_H, &reg_val_h);
@@ -702,9 +702,9 @@ static int distance(struct gc2235_resolution *res, u32 w, u32 h)
 	h_ratio = (res->height << 13) / h;
 	if (h_ratio == 0)
 		return -1;
-	match   = abs(((w_ratio << 13) / h_ratio) - ((int)8192));
+	match   = abs(((w_ratio << 13) / h_ratio) - 8192);
 
-	if ((w_ratio < (int)8192) || (h_ratio < (int)8192)  ||
+	if ((w_ratio < 8192) || (h_ratio < 8192)  ||
 		(match > LARGEST_ALLOWED_RATIO_MISMATCH))
 		return -1;
 
@@ -873,7 +873,7 @@ static int gc2235_detect(struct i2c_client *client)
 	}
 	ret = gc2235_read_reg(client, GC2235_8BIT,
 					GC2235_SENSOR_ID_L, &low);
-	id = ((((u16) high) << 8) | (u16) low);
+	id = ((high << 8) | low);
 
 	if (id != GC2235_ID) {
 		dev_err(&client->dev, "sensor ID error, 0x%x\n", id);
diff --git a/drivers/staging/media/atomisp/i2c/mt9m114.c b/drivers/staging/media/atomisp/i2c/mt9m114.c
index 876212455962..9742293f0a80 100644
--- a/drivers/staging/media/atomisp/i2c/mt9m114.c
+++ b/drivers/staging/media/atomisp/i2c/mt9m114.c
@@ -618,9 +618,9 @@ static int distance(struct mt9m114_res_struct const *res, u32 w, u32 h)
 	h_ratio = (res->height << 13) / h;
 	if (h_ratio == 0)
 		return -1;
-	match   = abs(((w_ratio << 13) / h_ratio) - ((int)8192));
+	match   = abs(((w_ratio << 13) / h_ratio) - 8192);
 
-	if ((w_ratio < (int)8192) || (h_ratio < (int)8192)  ||
+	if ((w_ratio < 8192) || (h_ratio < 8192)  ||
 		(match > LARGEST_ALLOWED_RATIO_MISMATCH))
 		return -1;
 
diff --git a/drivers/staging/media/atomisp/i2c/ov2722.c b/drivers/staging/media/atomisp/i2c/ov2722.c
index 43e872a96930..adf9766fbae1 100644
--- a/drivers/staging/media/atomisp/i2c/ov2722.c
+++ b/drivers/staging/media/atomisp/i2c/ov2722.c
@@ -807,9 +807,9 @@ static int distance(struct ov2722_resolution *res, u32 w, u32 h)
 	h_ratio = (res->height << 13) / h;
 	if (h_ratio == 0)
 		return -1;
-	match   = abs(((w_ratio << 13) / h_ratio) - ((int)8192));
+	match   = abs(((w_ratio << 13) / h_ratio) - 8192);
 
-	if ((w_ratio < (int)8192) || (h_ratio < (int)8192)  ||
+	if ((w_ratio < 8192) || (h_ratio < 8192)  ||
 		(match > LARGEST_ALLOWED_RATIO_MISMATCH))
 		return -1;
 
@@ -998,7 +998,7 @@ static int ov2722_detect(struct i2c_client *client)
 	}
 	ret = ov2722_read_reg(client, OV2722_8BIT,
 					OV2722_SC_CMMN_CHIP_ID_L, &low);
-	id = ((((u16) high) << 8) | (u16) low);
+	id = (high << 8) | low;
 
 	if ((id != OV2722_ID) && (id != OV2720_ID)) {
 		dev_err(&client->dev, "sensor ID error\n");
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/isys/src/isys_dma_rmgr.c b/drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/isys/src/isys_dma_rmgr.c
index d99150a4aaf4..5032627342d9 100644
--- a/drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/isys/src/isys_dma_rmgr.c
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/isys/src/isys_dma_rmgr.c
@@ -69,7 +69,7 @@ bool ia_css_isys_dma_channel_rmgr_acquire(
 		for (i = ISYS2401_DMA_CHANNEL_0; i < N_ISYS2401_DMA_CHANNEL; i++) {
 			if (bitop_getbit(cur_rsrc->active_table, i) == 0) {
 				bitop_setbit(cur_rsrc->active_table, i);
-				*channel = (isys2401_dma_channel)i;
+				*channel = i;
 				cur_rsrc->num_active++;
 				retval = true;
 				break;
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/sh_css_firmware.c b/drivers/staging/media/atomisp/pci/atomisp2/css2400/sh_css_firmware.c
index eba96cc2b1c2..b294e6d13762 100644
--- a/drivers/staging/media/atomisp/pci/atomisp2/css2400/sh_css_firmware.c
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/sh_css_firmware.c
@@ -122,7 +122,7 @@ sh_css_load_blob_info(const char *fw, const struct ia_css_fw_info *bi, struct ia
 	/* Special case: only one binary in fw */
 	if (bi == NULL) bi = (const struct ia_css_fw_info *)fw;
 
-	name = (const char *)fw + bi->blob.prog_name_offset;
+	name = fw + bi->blob.prog_name_offset;
 	blob = (const unsigned char *)fw + bi->blob.offset;
 
 	/* sanity check */
@@ -201,7 +201,7 @@ sh_css_check_firmware_version(const char *fw_data)
 	struct sh_css_fw_bi_file_h *file_header;
 
 	firmware_header = (struct firmware_header *)fw_data;
-	file_header = (struct sh_css_fw_bi_file_h *)&firmware_header->file_header;
+	file_header = &firmware_header->file_header;
 
 	if (strcmp(file_header->version, release_version) != 0) {
 		return false;
@@ -221,8 +221,8 @@ sh_css_load_firmware(const char *fw_data,
 	bool valid_firmware = false;
 
 	firmware_header = (struct firmware_header *)fw_data;
-	file_header = (struct sh_css_fw_bi_file_h *)&firmware_header->file_header;
-	binaries = (struct ia_css_fw_info *)&firmware_header->binary_header;
+	file_header = &firmware_header->file_header;
+	binaries = &firmware_header->binary_header;
 	strncpy(FW_rel_ver_name, file_header->version, min(sizeof(FW_rel_ver_name), sizeof(file_header->version)) - 1);
 	valid_firmware = sh_css_check_firmware_version(fw_data);
 	if (!valid_firmware) {
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/hmm/hmm.c b/drivers/staging/media/atomisp/pci/atomisp2/hmm/hmm.c
index 358d340e7434..a32c9817b800 100644
--- a/drivers/staging/media/atomisp/pci/atomisp2/hmm/hmm.c
+++ b/drivers/staging/media/atomisp/pci/atomisp2/hmm/hmm.c
@@ -553,7 +553,7 @@ int hmm_set(ia_css_ptr virt, int c, unsigned int bytes)
 		vptr = hmm_bo_vmap(bo, true);
 		if (vptr) {
 			vptr = vptr + (virt - bo->start);
-			memset((void *)vptr, c, bytes);
+			memset(vptr, c, bytes);
 			clflush_cache_range(vptr, bytes);
 			hmm_bo_vunmap(bo);
 			return 0;