Re: [PATCH] spi: davinci: use request_threaded_irq() to fix deadlock

2013-02-05 Thread Grant Likely
On Wed, 2 Jan 2013 10:19:08 -0500, Murali Karicheri m-kariche...@ti.com wrote: On 12/22/2012 05:08 AM, Grant Likely wrote: On Fri, 21 Dec 2012 15:13:26 -0500, Murali Karicherim-kariche...@ti.com wrote: With RT pre-empt patch applied to Linux kernel, the irq handler will be force

Re: [PATCH] spi: davinci: use request_threaded_irq() to fix deadlock

2013-01-02 Thread Murali Karicheri
On 12/22/2012 05:08 AM, Grant Likely wrote: On Fri, 21 Dec 2012 15:13:26 -0500, Murali Karicherim-kariche...@ti.com wrote: With RT pre-empt patch applied to Linux kernel, the irq handler will be force converted to an irq thread. spi driver can get back to back messages from the slave

Re: [PATCH] spi: davinci: use request_threaded_irq() to fix deadlock

2012-12-22 Thread Grant Likely
On Fri, 21 Dec 2012 15:13:26 -0500, Murali Karicheri m-kariche...@ti.com wrote: With RT pre-empt patch applied to Linux kernel, the irq handler will be force converted to an irq thread. spi driver can get back to back messages from the slave device. In such cases, IRQ thread doesn't get a