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authorMichael Grzeschik <m.grzeschik@pengutronix.de>2017-06-23 14:35:09 +0200
committerMark Brown <broonie@kernel.org>2017-06-28 20:11:07 +0100
commita71411dbf6c82ba2eb2519717c04ffb19bc4dda5 (patch)
treeb2c38d143a0a48f15f0527abacc89d0ffe2a7b86 /include/linux/regmap.h
parent63c73b059cbbd96d5161ebe34c533136b4639d26 (diff)
regmap: irq: add chip option mask_writeonly
Some irq controllers have writeonly/multipurpose register layouts. In those cases we read invalid data back. Here we add the option mask_writeonly as masking option. Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'include/linux/regmap.h')
-rw-r--r--include/linux/regmap.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/regmap.h b/include/linux/regmap.h
index e88649225a60..400172b59f24 100644
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h
@@ -884,6 +884,7 @@ struct regmap_irq {
*
* @status_base: Base status register address.
* @mask_base: Base mask register address.
+ * @mask_writeonly: Base mask register is write only.
* @unmask_base: Base unmask register address. for chips who have
* separate mask and unmask registers
* @ack_base: Base ack address. If zero then the chip is clear on read.
@@ -927,6 +928,7 @@ struct regmap_irq_chip {
unsigned int wake_base;
unsigned int type_base;
unsigned int irq_reg_stride;
+ bool mask_writeonly:1;
bool init_ack_masked:1;
bool mask_invert:1;
bool use_ack:1;