Commit 46de3adb authored by Eddie James's avatar Eddie James Committed by Pavel Machek
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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: default avatarEddie James <eajames@linux.ibm.com>
Reviewed-by: default avatarVishwanatha Subbanna <vishwa@linux.vnet.ibm.com>
Signed-off-by: default avatarPavel Machek <pavel@ucw.cz>
parent 8ebe6d29

drivers/leds/leds-pca955x.c

+8 −0
Original line number Diff line number Diff line
@@ -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 },

	{},

};