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Commit 237b5f66 authored by Andrew Lunn's avatar Andrew Lunn Committed by Wolfram Sang
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i2c: ocores: Add support for bus clock via platform data 



Add the I2C bus clock speed to the platform data structure.
If not set, default to 100KHz as before.

Signed-off-by: default avatarAndrew Lunn <andrew@lunn.ch>
Signed-off-by: default avatarWolfram Sang <wsa@the-dreams.de>
parent 809445d4

drivers/i2c/busses/i2c-ocores.c

+4 −1
Original line number Diff line number Diff line
@@ -628,6 +628,9 @@ static int ocores_i2c_probe(struct platform_device *pdev) 
		i2c->reg_shift = pdata->reg_shift;

		i2c->reg_io_width = pdata->reg_io_width;

		i2c->ip_clock_khz = pdata->clock_khz;

		if (pdata->bus_khz)

			i2c->bus_clock_khz = pdata->bus_khz;

		else

			i2c->bus_clock_khz = 100;

	} else {

		ret = ocores_i2c_of_probe(pdev, i2c);

include/linux/platform_data/i2c-ocores.h

+1 −0
Original line number Diff line number Diff line
@@ -12,6 +12,7 @@ struct ocores_i2c_platform_data { 
	u32 reg_shift; /* register offset shift value */

	u32 reg_io_width; /* register io read/write width */

	u32 clock_khz; /* input clock in kHz */

	u32 bus_khz; /* bus clock in kHz */

	bool big_endian; /* registers are big endian */

	u8 num_devices; /* number of devices in the devices list */

	struct i2c_board_info const *devices; /* devices connected to the bus */