[PATCH v1 1/2] mfd: bxtwc: Fix acpi module device table name

[PATCH v1 1/2] mfd: bxtwc: Fix acpi module device table name

[Kuppuswamy Sathyanarayanan]

acpi device id table name for this driver is bxtwc_acpi_ids.But
in module device table pmic_acpi_ids is used. This patch fixes
this problem.

Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
---
 drivers/mfd/intel_soc_pmic_bxtwc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mfd/intel_soc_pmic_bxtwc.c b/drivers/mfd/intel_soc_pmic_bxtwc.c
index b942876..92bd833 100644
--- a/drivers/mfd/intel_soc_pmic_bxtwc.c
+++ b/drivers/mfd/intel_soc_pmic_bxtwc.c
@@ -458,7 +458,7 @@ static const struct acpi_device_id bxtwc_acpi_ids[] = {
 	{ "INT34D3", },
 	{ }
 };
-MODULE_DEVICE_TABLE(acpi, pmic_acpi_ids);
+MODULE_DEVICE_TABLE(acpi, bxtwc_acpi_ids);
 
 static struct platform_driver bxtwc_driver = {
 	.probe = bxtwc_probe,
-- 
1.9.1

[PATCH v1 2/2] mfd: bxtwc: remove unnecessary condition checks in ipc calls

[Kuppuswamy Sathyanarayanan]

In the following code block, BXTWC_DEVICE1_ADDR value is
already fixed and hence there no need to check for
if (!i2c_addr) in every ipc read/write calls. Even if this
check is required it can be moved to probe function.

i2c_addr = BXTWC_DEVICE1_ADDR;
if (!i2c_addr) {
	dev_err(pmic->dev, "I2C address not set\n");
	return -EINVAL;
}

This patch remove this extra check and adds some NULL
parameter checks.

Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
---
 drivers/mfd/intel_soc_pmic_bxtwc.c | 22 ++++++++++------------
 1 file changed, 10 insertions(+), 12 deletions(-)

diff --git a/drivers/mfd/intel_soc_pmic_bxtwc.c b/drivers/mfd/intel_soc_pmic_bxtwc.c
index 92bd833..3df546f 100644
--- a/drivers/mfd/intel_soc_pmic_bxtwc.c
+++ b/drivers/mfd/intel_soc_pmic_bxtwc.c
@@ -198,15 +198,14 @@ static int regmap_ipc_byte_reg_read(void *context, unsigned int reg,
 	u8 ipc_out[4];
 	struct intel_soc_pmic *pmic = context;
 
+	if (!pmic)
+		return -EINVAL;
+
 	if (reg & REG_ADDR_MASK)
 		i2c_addr = (reg & REG_ADDR_MASK) >> REG_ADDR_SHIFT;
-	else {
+	else
 		i2c_addr = BXTWC_DEVICE1_ADDR;
-		if (!i2c_addr) {
-			dev_err(pmic->dev, "I2C address not set\n");
-			return -EINVAL;
-		}
-	}
+
 	reg &= REG_OFFSET_MASK;
 
 	ipc_in[0] = reg;
@@ -231,15 +230,14 @@ static int regmap_ipc_byte_reg_write(void *context, unsigned int reg,
 	u8 ipc_in[3];
 	struct intel_soc_pmic *pmic = context;
 
+	if (!pmic)
+		return -EINVAL;
+
 	if (reg & REG_ADDR_MASK)
 		i2c_addr = (reg & REG_ADDR_MASK) >> REG_ADDR_SHIFT;
-	else {
+	else
 		i2c_addr = BXTWC_DEVICE1_ADDR;
-		if (!i2c_addr) {
-			dev_err(pmic->dev, "I2C address not set\n");
-			return -EINVAL;
-		}
-	}
+
 	reg &= REG_OFFSET_MASK;
 
 	ipc_in[0] = reg;
-- 
1.9.1