i2c: mux: pca954x: Add missing pca9542 definition to chip_desc

The spec for the pca954x was missing. This chip is the same as the pca9540
except that it has interrupt lines. While the i2c_device_id table mapped
the pca9542 to the pca9540 definition the compatible table did not. In
preparation for irq support add the pca9542 definition.

Signed-off-by: Phil Reid <preid@electromag.com.au>
Signed-off-by: Peter Rosin <peda@axentia.se>

diff --git a/drivers/i2c/muxes/i2c-mux-pca954x.c b/drivers/i2c/muxes/i2c-mux-pca954x.c
index dd18b9c..bbf088e 100644 (file)
--- a/drivers/i2c/muxes/i2c-mux-pca954x.c
+++ b/drivers/i2c/muxes/i2c-mux-pca954x.c
@@ -84,6 +84,11 @@ static const struct chip_desc chips[] = {
                .enable = 0x4,
                .muxtype = pca954x_ismux,
        },
+       [pca_9542] = {
+               .nchans = 2,
+               .enable = 0x4,
+               .muxtype = pca954x_ismux,
+       },
        [pca_9543] = {
                .nchans = 2,
                .muxtype = pca954x_isswi,
@@ -110,7 +115,7 @@ static const struct chip_desc chips[] = {
 
 static const struct i2c_device_id pca954x_id[] = {
        { "pca9540", pca_9540 },
-       { "pca9542", pca_9540 },
+       { "pca9542", pca_9542 },
        { "pca9543", pca_9543 },
        { "pca9544", pca_9544 },
        { "pca9545", pca_9545 },
@@ -124,7 +129,7 @@ MODULE_DEVICE_TABLE(i2c, pca954x_id);
 #ifdef CONFIG_ACPI
 static const struct acpi_device_id pca954x_acpi_ids[] = {
        { .id = "PCA9540", .driver_data = pca_9540 },
-       { .id = "PCA9542", .driver_data = pca_9540 },
+       { .id = "PCA9542", .driver_data = pca_9542 },
        { .id = "PCA9543", .driver_data = pca_9543 },
        { .id = "PCA9544", .driver_data = pca_9544 },
        { .id = "PCA9545", .driver_data = pca_9545 },