Re: [PATCH 1/3] radeonfb: Speed up the I2C buses
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: 2008-02-12 20:57:14
On Tue, 2008-02-12 at 10:19 +0100, Jean Delvare wrote:
There is no reason to drive the radeon I2C buses at such a low speed, so bump it from 12.5 kbps to 50 kbps. The Intel (i810) and Matrox framebuffer drivers already run their I2C bus at this speed. Signed-off-by: Jean Delvare <redacted>
Ack.
quoted hunk ↗ jump to hunk
--- This patch was already sent on: * 2007-03-08 * 2007-09-09 drivers/video/aty/radeon_i2c.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)--- linux-2.6.21-git.orig/drivers/video/aty/radeon_i2c.c 2007-05-09 10:52:26.000000000 +0200 +++ linux-2.6.21-git/drivers/video/aty/radeon_i2c.c 2007-05-09 10:55:51.000000000 +0200@@ -77,7 +77,7 @@ static int radeon_setup_i2c_bus(struct r chan->algo.setscl = radeon_gpio_setscl; chan->algo.getsda = radeon_gpio_getsda; chan->algo.getscl = radeon_gpio_getscl; - chan->algo.udelay = 40; + chan->algo.udelay = 10; chan->algo.timeout = 20; chan->algo.data = chan;
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