device: acpi_name() should take a const struct device

There's no reason to mutate the struct device when determining
the ACPI name for a device. Adjust the function pointer
signature and the respective implementations to use const
struct device.

Change-Id: If5e1f4de36a53646616581b01f47c4e86822c42e
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/21527
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>

src/drivers/i2c/alps/alps.c

@@ -34,7 +34,7 @@ static void i2c_alps_fill_ssdt_generator(struct device *dev)
 	i2c_generic_fill_ssdt(dev, &i2c_alps_fill_dsm, &config->generic);
 }
 
-static const char *i2c_alps_acpi_name(struct device *dev)
+static const char *i2c_alps_acpi_name(const struct device *dev)
 {
 	return "ALPS";
 }

src/drivers/i2c/da7219/da7219.c

@@ -95,7 +95,7 @@ static void da7219_fill_ssdt(struct device *dev)
 	       dev->path.i2c.device, config->irq.pin);
 }
 
-static const char *da7219_acpi_name(struct device *dev)
+static const char *da7219_acpi_name(const struct device *dev)
 {
 	return DA7219_ACPI_NAME;
 }

src/drivers/i2c/generic/generic.c

@@ -165,7 +165,7 @@ static void i2c_generic_fill_ssdt_generator(struct device *dev)
 }
 
 /* Use name specified in config or build one from I2C address */
-static const char *i2c_generic_acpi_name(struct device *dev)
+static const char *i2c_generic_acpi_name(const struct device *dev)
 {
 	struct drivers_i2c_generic_config *config = dev->chip_info;
 	static char name[5];

src/drivers/i2c/hid/hid.c

@@ -37,7 +37,7 @@ static void i2c_hid_fill_ssdt_generator(struct device *dev)
 	i2c_generic_fill_ssdt(dev, &i2c_hid_fill_dsm, &config->generic);
 }
 
-static const char *i2c_hid_acpi_name(struct device *dev)
+static const char *i2c_hid_acpi_name(const struct device *dev)
 {
 	static char name[5];
 	snprintf(name, sizeof(name), "H%03.3X", dev->path.i2c.device);

src/drivers/i2c/max98927/max98927.c

@@ -73,7 +73,7 @@ static void max98927_fill_ssdt(struct device *dev)
 			dev->chip_ops->name, dev->path.i2c.device);
 }
 
-static const char *max98927_acpi_name(struct device *dev)
+static const char *max98927_acpi_name(const struct device *dev)
 {
 	struct drivers_i2c_max98927_config *config = dev->chip_info;
 

src/drivers/i2c/nau8825/nau8825.c

@@ -92,7 +92,7 @@ static void nau8825_fill_ssdt(struct device *dev)
 	       dev->path.i2c.device, config->irq.pin);
 }
 
-static const char *nau8825_acpi_name(struct device *dev)
+static const char *nau8825_acpi_name(const struct device *dev)
 {
 	return NAU8825_ACPI_NAME;
 }

src/drivers/i2c/rt5663/rt5663.c

@@ -82,7 +82,7 @@ static void rt5663_fill_ssdt(struct device *dev)
 			dev->chip_ops->name, dev->path.i2c.device);
 }
 
-static const char *rt5663_acpi_name(struct device *dev)
+static const char *rt5663_acpi_name(const struct device *dev)
 {
 	return RT5663_ACPI_NAME;
 }

src/drivers/i2c/tpm/chip.c

@@ -65,7 +65,7 @@ static void i2c_tpm_fill_ssdt(struct device *dev)
 	       dev->chip_ops->name, dev_path(dev));
 }
 
-static const char *i2c_tpm_acpi_name(struct device *dev)
+static const char *i2c_tpm_acpi_name(const struct device *dev)
 {
 	return "TPMI";
 }