Re: [PATCH v11 0/4] AT91: replace old i2c-at91.c TWI driver

2012-09-12 Thread Nicolas Ferre
On 08/29/2012 09:28 AM, Nikolaus Voss : > The old driver has two main deficencies: > i) No repeated start (Sr) condiction is possible, this makes it unusable > e.g. for most SMBus transfers. > ii) I/O was done with polling/busy waiting what caused over-/underruns > even at light system loa

[PATCH v11 0/4] AT91: replace old i2c-at91.c TWI driver

2012-08-29 Thread Nikolaus Voss
The old driver has two main deficencies: i) No repeated start (Sr) condiction is possible, this makes it unusable e.g. for most SMBus transfers. ii) I/O was done with polling/busy waiting what caused over-/underruns even at light system loads and clock speeds. The new driver overcomes the

[PATCH v11 0/4] AT91: replace old i2c-at91.c TWI driver

2012-08-22 Thread Nikolaus Voss
The old driver has two main deficencies: i) No repeated start (Sr) condiction is possible, this makes it unusable e.g. for most SMBus transfers. ii) I/O was done with polling/busy waiting what caused over-/underruns even at light system loads and clock speeds. The new driver overcomes the