From 022f926a2401c80ed36ebb48a1bffbac08f34d98 Mon Sep 17 00:00:00 2001 From: Graeme Gregory Date: Mon, 14 May 2012 22:40:43 +0900 Subject: regmap: add support for non contiguous status to regmap-irq In some chips the IRQ status registers are not contiguous in the register map but spaced at even spaces. This is an easy case to handle with minor changes. It is assume for this purpose that the stride for status is equal to the stride for mask/ack registers as well. Signed-off-by: Graeme Gregory Signed-off-by: Mark Brown --- include/linux/regmap.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux/regmap.h') diff --git a/include/linux/regmap.h b/include/linux/regmap.h index 720866887ae3..56af22ec9aba 100644 --- a/include/linux/regmap.h +++ b/include/linux/regmap.h @@ -219,6 +219,7 @@ struct regmap_irq { * @status_base: Base status register address. * @mask_base: Base mask register address. * @ack_base: Base ack address. If zero then the chip is clear on read. + * @irq_reg_stride: Stride to use for chips where registers are not contiguous. * * @num_regs: Number of registers in each control bank. * @irqs: Descriptors for individual IRQs. Interrupt numbers are @@ -231,6 +232,7 @@ struct regmap_irq_chip { unsigned int status_base; unsigned int mask_base; unsigned int ack_base; + unsigned int irq_reg_stride; int num_regs; -- cgit v1.2.3