regulator: qcom_smd: Handle big endian CPUs
The smd rpm structures are always in little endian, but this
driver is not capable of being used on big endian CPUs. Annotate
the little endian data members and update the code to do the
proper byte swapping.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/drivers/regulator/qcom_smd-regulator.c b/drivers/regulator/qcom_smd-regulator.c
index 9c6167d..b72c693 100644
--- a/drivers/regulator/qcom_smd-regulator.c
+++ b/drivers/regulator/qcom_smd-regulator.c
@@ -36,9 +36,9 @@
};
struct rpm_regulator_req {
- u32 key;
- u32 nbytes;
- u32 value;
+ __le32 key;
+ __le32 nbytes;
+ __le32 value;
};
#define RPM_KEY_SWEN 0x6e657773 /* "swen" */
@@ -62,9 +62,9 @@
struct rpm_regulator_req req;
int ret;
- req.key = RPM_KEY_SWEN;
- req.nbytes = sizeof(u32);
- req.value = 1;
+ req.key = cpu_to_le32(RPM_KEY_SWEN);
+ req.nbytes = cpu_to_le32(sizeof(u32));
+ req.value = cpu_to_le32(1);
ret = rpm_reg_write_active(vreg, &req, sizeof(req));
if (!ret)
@@ -86,8 +86,8 @@
struct rpm_regulator_req req;
int ret;
- req.key = RPM_KEY_SWEN;
- req.nbytes = sizeof(u32);
+ req.key = cpu_to_le32(RPM_KEY_SWEN);
+ req.nbytes = cpu_to_le32(sizeof(u32));
req.value = 0;
ret = rpm_reg_write_active(vreg, &req, sizeof(req));
@@ -113,9 +113,9 @@
struct rpm_regulator_req req;
int ret = 0;
- req.key = RPM_KEY_UV;
- req.nbytes = sizeof(u32);
- req.value = min_uV;
+ req.key = cpu_to_le32(RPM_KEY_UV);
+ req.nbytes = cpu_to_le32(sizeof(u32));
+ req.value = cpu_to_le32(min_uV);
ret = rpm_reg_write_active(vreg, &req, sizeof(req));
if (!ret)
@@ -129,9 +129,9 @@
struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev);
struct rpm_regulator_req req;
- req.key = RPM_KEY_MA;
- req.nbytes = sizeof(u32);
- req.value = load_uA;
+ req.key = cpu_to_le32(RPM_KEY_MA);
+ req.nbytes = cpu_to_le32(sizeof(u32));
+ req.value = cpu_to_le32(load_uA);
return rpm_reg_write_active(vreg, &req, sizeof(req));
}