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authorAlexandre Belloni <alexandre.belloni@free-electrons.com>2014-04-15 12:27:58 +0200
committerNicolas Ferre <nicolas.ferre@atmel.com>2014-05-07 18:28:39 +0200
commit2de0c019f34ffbe49744c453628afb270aa9adb6 (patch)
tree373fb69307927a11d8eeb31d56a786336b962fdb /drivers/iio
parentacc8b8e10754edf2cfd81b8ce1fe8e1438ec3f00 (diff)
downloadlinux-2de0c019f34ffbe49744c453628afb270aa9adb6.tar.bz2
iio: adc: at91: cleanup platform_data
num_channels and registers are not used anymore since they are defined inside the driver and assigned by matching the id_table. Also, struct at91_adc_reg_desc is now only used inside the driver. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Diffstat (limited to 'drivers/iio')
-rw-r--r--drivers/iio/adc/at91_adc.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c
index 89777ed9abd8..1beae65aef2c 100644
--- a/drivers/iio/adc/at91_adc.c
+++ b/drivers/iio/adc/at91_adc.c
@@ -46,6 +46,25 @@
#define TOUCH_SAMPLE_PERIOD_US 2000 /* 2ms */
#define TOUCH_PEN_DETECT_DEBOUNCE_US 200
+/**
+ * struct at91_adc_reg_desc - Various informations relative to registers
+ * @channel_base: Base offset for the channel data registers
+ * @drdy_mask: Mask of the DRDY field in the relevant registers
+ (Interruptions registers mostly)
+ * @status_register: Offset of the Interrupt Status Register
+ * @trigger_register: Offset of the Trigger setup register
+ * @mr_prescal_mask: Mask of the PRESCAL field in the adc MR register
+ * @mr_startup_mask: Mask of the STARTUP field in the adc MR register
+ */
+struct at91_adc_reg_desc {
+ u8 channel_base;
+ u32 drdy_mask;
+ u8 status_register;
+ u8 trigger_register;
+ u32 mr_prescal_mask;
+ u32 mr_startup_mask;
+};
+
struct at91_adc_caps {
bool has_ts; /* Support touch screen */
bool has_tsmr; /* only at91sam9x5, sama5d3 have TSMR reg */