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path: root/drivers/mfd/ssbi.c
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Diffstat (limited to 'drivers/mfd/ssbi.c')
-rw-r--r--drivers/mfd/ssbi.c16
1 files changed, 11 insertions, 5 deletions
diff --git a/drivers/mfd/ssbi.c b/drivers/mfd/ssbi.c
index 102a22844297..b78942ed4c67 100644
--- a/drivers/mfd/ssbi.c
+++ b/drivers/mfd/ssbi.c
@@ -65,13 +65,19 @@
#define SSBI_TIMEOUT_US 100
+enum ssbi_controller_type {
+ MSM_SBI_CTRL_SSBI = 0,
+ MSM_SBI_CTRL_SSBI2,
+ MSM_SBI_CTRL_PMIC_ARBITER,
+};
+
struct ssbi {
struct device *slave;
void __iomem *base;
spinlock_t lock;
enum ssbi_controller_type controller_type;
int (*read)(struct ssbi *, u16 addr, u8 *buf, int len);
- int (*write)(struct ssbi *, u16 addr, u8 *buf, int len);
+ int (*write)(struct ssbi *, u16 addr, const u8 *buf, int len);
};
#define to_ssbi(dev) platform_get_drvdata(to_platform_device(dev))
@@ -140,7 +146,7 @@ err:
}
static int
-ssbi_write_bytes(struct ssbi *ssbi, u16 addr, u8 *buf, int len)
+ssbi_write_bytes(struct ssbi *ssbi, u16 addr, const u8 *buf, int len)
{
int ret = 0;
@@ -217,7 +223,7 @@ err:
}
static int
-ssbi_pa_write_bytes(struct ssbi *ssbi, u16 addr, u8 *buf, int len)
+ssbi_pa_write_bytes(struct ssbi *ssbi, u16 addr, const u8 *buf, int len)
{
u32 cmd;
int ret = 0;
@@ -249,7 +255,7 @@ int ssbi_read(struct device *dev, u16 addr, u8 *buf, int len)
}
EXPORT_SYMBOL_GPL(ssbi_read);
-int ssbi_write(struct device *dev, u16 addr, u8 *buf, int len)
+int ssbi_write(struct device *dev, u16 addr, const u8 *buf, int len)
{
struct ssbi *ssbi = to_ssbi(dev);
unsigned long flags;
@@ -311,7 +317,7 @@ static int ssbi_probe(struct platform_device *pdev)
return of_platform_populate(np, NULL, NULL, &pdev->dev);
}
-static struct of_device_id ssbi_match_table[] = {
+static const struct of_device_id ssbi_match_table[] = {
{ .compatible = "qcom,ssbi" },
{}
};