[PATCH v2] staging: most: add __iomem for io_base and registers

From: Hugo Camboulive
Date: Sat Jan 02 2016 - 16:33:15 EST


This removes a few Sparse warnings.

Signed-off-by: Hugo Camboulive <hugo.camboulive@xxxxxxxxx>
---
drivers/staging/most/hdm-dim2/dim2_hal.c | 4 ++--
drivers/staging/most/hdm-dim2/dim2_hal.h | 7 ++++---
drivers/staging/most/hdm-dim2/dim2_hdm.c | 6 +++---
drivers/staging/most/hdm-dim2/dim2_hdm.h | 2 +-
4 files changed, 10 insertions(+), 9 deletions(-)

diff --git a/drivers/staging/most/hdm-dim2/dim2_hal.c b/drivers/staging/most/hdm-dim2/dim2_hal.c
index 1722575..3c52450 100644
--- a/drivers/staging/most/hdm-dim2/dim2_hal.c
+++ b/drivers/staging/most/hdm-dim2/dim2_hal.c
@@ -84,7 +84,7 @@ static inline bool dim_on_error(u8 error_id, const char *error_message)
struct lld_global_vars_t {
bool dim_is_initialized;
bool mcm_is_initialized;
- struct dim2_regs *dim2; /* DIM2 core base address */
+ struct dim2_regs __iomem *dim2; /* DIM2 core base address */
u32 dbr_map[DBR_MAP_SIZE];
};

@@ -650,7 +650,7 @@ static bool channel_detach_buffers(struct dim_channel *ch, u16 buffers_number)
/* -------------------------------------------------------------------------- */
/* API */

-u8 dim_startup(void *dim_base_address, u32 mlb_clock)
+u8 dim_startup(struct dim2_regs __iomem *dim_base_address, u32 mlb_clock)
{
g.dim_is_initialized = false;

diff --git a/drivers/staging/most/hdm-dim2/dim2_hal.h b/drivers/staging/most/hdm-dim2/dim2_hal.h
index 48cdd9c..fc73d4f 100644
--- a/drivers/staging/most/hdm-dim2/dim2_hal.h
+++ b/drivers/staging/most/hdm-dim2/dim2_hal.h
@@ -16,6 +16,7 @@
#define _DIM2_HAL_H

#include <linux/types.h>
+#include "dim2_reg.h"

#ifdef __cplusplus
extern "C" {
@@ -65,7 +66,7 @@ struct dim_channel {
u16 done_sw_buffers_number; /*< Done software buffers number. */
};

-u8 dim_startup(void *dim_base_address, u32 mlb_clock);
+u8 dim_startup(struct dim2_regs __iomem *dim_base_address, u32 mlb_clock);

void dim_shutdown(void);

@@ -103,9 +104,9 @@ bool dim_enqueue_buffer(struct dim_channel *ch, u32 buffer_addr,

bool dim_detach_buffers(struct dim_channel *ch, u16 buffers_number);

-u32 dimcb_io_read(u32 *ptr32);
+u32 dimcb_io_read(u32 __iomem *ptr32);

-void dimcb_io_write(u32 *ptr32, u32 value);
+void dimcb_io_write(u32 __iomem *ptr32, u32 value);

void dimcb_on_error(u8 error_id, const char *error_message);

diff --git a/drivers/staging/most/hdm-dim2/dim2_hdm.c b/drivers/staging/most/hdm-dim2/dim2_hdm.c
index 327d738..7d22a6b 100644
--- a/drivers/staging/most/hdm-dim2/dim2_hdm.c
+++ b/drivers/staging/most/hdm-dim2/dim2_hdm.c
@@ -99,7 +99,7 @@ struct dim2_hdm {
struct most_channel_capability capabilities[DMA_CHANNELS];
struct most_interface most_iface;
char name[16 + sizeof "dim2-"];
- void *io_base;
+ void __iomem *io_base;
unsigned int irq_ahb0;
int clk_speed;
struct task_struct *netinfo_task;
@@ -138,7 +138,7 @@ bool dim2_sysfs_get_state_cb(void)
* dimcb_io_read - callback from HAL to read an I/O register
* @ptr32: register address
*/
-u32 dimcb_io_read(u32 *ptr32)
+u32 dimcb_io_read(u32 __iomem *ptr32)
{
return __raw_readl(ptr32);
}
@@ -148,7 +148,7 @@ u32 dimcb_io_read(u32 *ptr32)
* @ptr32: register address
* @value: value to write
*/
-void dimcb_io_write(u32 *ptr32, u32 value)
+void dimcb_io_write(u32 __iomem *ptr32, u32 value)
{
__raw_writel(value, ptr32);
}
diff --git a/drivers/staging/most/hdm-dim2/dim2_hdm.h b/drivers/staging/most/hdm-dim2/dim2_hdm.h
index 1c94e33..4050e7c 100644
--- a/drivers/staging/most/hdm-dim2/dim2_hdm.h
+++ b/drivers/staging/most/hdm-dim2/dim2_hdm.h
@@ -18,7 +18,7 @@ struct device;

/* platform dependent data for dim2 interface */
struct dim2_platform_data {
- int (*init)(struct dim2_platform_data *pd, void *io_base,
+ int (*init)(struct dim2_platform_data *pd, void __iomem *io_base,
int clk_speed);
void (*destroy)(struct dim2_platform_data *pd);
void *priv;
--
2.6.4

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