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| author | Eddie James <eajames@linux.ibm.com> | 2020-08-03 09:50:55 -0500 |
|---|---|---|
| committer | Pavel Machek <pavel@ucw.cz> | 2020-08-17 22:24:21 +0200 |
| commit | 46de3adb5240f33b6dbf89ca0dc4ba5c86abebb1 (patch) | |
| tree | 163738b66fd507d8340395ed7b28378401f93460 /drivers | |
| parent | 8ebe6d29a3f163f9fe9fc71e15073913e0ee8ad6 (diff) | |
| download | linux-46de3adb5240f33b6dbf89ca0dc4ba5c86abebb1.tar.gz | |
leds: pca955x: Add an IBM software implementation of the PCA9552 chip
IBM created an implementation of the PCA9552 on a PIC16F microcontroller. The I2C device addresses are different from the hardware PCA9552, so add a new compatible string and associated platform data to be able to probe this device. Signed-off-by: Eddie James <eajames@linux.ibm.com> Reviewed-by: Vishwanatha Subbanna <vishwa@linux.vnet.ibm.com> Signed-off-by: Pavel Machek <pavel@ucw.cz>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/leds/leds-pca955x.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/leds/leds-pca955x.c b/drivers/leds/leds-pca955x.c index 131f8e922ade..7087ca4592fc 100644 --- a/drivers/leds/leds-pca955x.c +++ b/drivers/leds/leds-pca955x.c @@ -65,6 +65,7 @@ enum pca955x_type { pca9550, pca9551, pca9552, + ibm_pca9552, pca9553, }; @@ -90,6 +91,11 @@ static struct pca955x_chipdef pca955x_chipdefs[] = { .slv_addr = /* 1100xxx */ 0x60, .slv_addr_shift = 3, }, + [ibm_pca9552] = { + .bits = 16, + .slv_addr = /* 0110xxx */ 0x30, + .slv_addr_shift = 3, + }, [pca9553] = { .bits = 4, .slv_addr = /* 110001x */ 0x62, @@ -101,6 +107,7 @@ static const struct i2c_device_id pca955x_id[] = { { "pca9550", pca9550 }, { "pca9551", pca9551 }, { "pca9552", pca9552 }, + { "ibm-pca9552", ibm_pca9552 }, { "pca9553", pca9553 }, { } }; @@ -412,6 +419,7 @@ static const struct of_device_id of_pca955x_match[] = { { .compatible = "nxp,pca9550", .data = (void *)pca9550 }, { .compatible = "nxp,pca9551", .data = (void *)pca9551 }, { .compatible = "nxp,pca9552", .data = (void *)pca9552 }, + { .compatible = "ibm,pca9552", .data = (void *)ibm_pca9552 }, { .compatible = "nxp,pca9553", .data = (void *)pca9553 }, {}, }; |