From c46c948260f41af18b277c1eb1895d788d3605dc Mon Sep 17 00:00:00 2001 From: Jonathan Cameron Date: Fri, 3 Oct 2008 15:07:36 +0100 Subject: [ARM] 5278/1: i2c-pxa fast mode support Add fast_mode option to i2c_pxa_platform_data and use it to set the ICR_FM bit appropriately when i2c_pxa_reset is called. Parameter called fast_mode rather than frequency as this driver is also used for the i2c_pxa_pwr bus which has different normal and fast frequencies. Signed-off-by: Jonathan Cameron Acked-by: Eric Miao Signed-off-by: Russell King --- drivers/i2c/busses/i2c-pxa.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'drivers/i2c/busses/i2c-pxa.c') diff --git a/drivers/i2c/busses/i2c-pxa.c b/drivers/i2c/busses/i2c-pxa.c index 518b57c795c..8b38ed0379d 100644 --- a/drivers/i2c/busses/i2c-pxa.c +++ b/drivers/i2c/busses/i2c-pxa.c @@ -66,7 +66,8 @@ struct pxa_i2c { unsigned long iosize; int irq; - int use_pio; + unsigned int use_pio :1; + unsigned int fast_mode :1; }; #define _IBMR(i2c) ((i2c)->reg_base + (0x0 << (i2c)->reg_shift)) @@ -366,7 +367,7 @@ static void i2c_pxa_reset(struct pxa_i2c *i2c) writel(i2c->slave_addr, _ISAR(i2c)); /* set control register values */ - writel(I2C_ICR_INIT, _ICR(i2c)); + writel(I2C_ICR_INIT | (i2c->fast_mode ? ICR_FM : 0), _ICR(i2c)); #ifdef CONFIG_I2C_PXA_SLAVE dev_info(&i2c->adap.dev, "Enabling slave mode\n"); @@ -1010,6 +1011,7 @@ static int i2c_pxa_probe(struct platform_device *dev) if (plat) { i2c->adap.class = plat->class; i2c->use_pio = plat->use_pio; + i2c->fast_mode = plat->fast_mode; } if (i2c->use_pio) { -- cgit v1.2.3