[patch 026/198] ppc32: ppc4xx_pic - add acknowledge when enabling level-sensitive IRQ

From: Eugene Surovegin <[EMAIL PROTECTED]> This patch adds interrupt acknowledge to the PPC4xx PIC enable_irq implementation for level-sensitive IRQ sources. This helps in cases when enable/disable_irq is used in interrupt handlers for hardware, which requires IRQ acknowledge to be issued from

[patch 026/198] ppc32: ppc4xx_pic - add acknowledge when enabling level-sensitive IRQ

From: Eugene Surovegin [EMAIL PROTECTED] This patch adds interrupt acknowledge to the PPC4xx PIC enable_irq implementation for level-sensitive IRQ sources. This helps in cases when enable/disable_irq is used in interrupt handlers for hardware, which requires IRQ acknowledge to be issued from