From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Lars-Peter Clausen To: Jonathan Cameron Cc: Michael Hennerich , linux-iio@vger.kernel.org, device-drivers-devel@blackfin.uclinux.org, Lars-Peter Clausen Subject: [PATCH] staging:iio: AD5638: Fix channel address Date: Thu, 6 Oct 2011 15:19:07 +0200 Message-Id: <1317907147-15677-1-git-send-email-lars@metafoo.de> List-ID: Commit c6fc806247 ("staging:iio: ABI rework - add in_ or out_ prefix to channnels") added the AD5868_CHANNEL macro to simplify channel initialization. Unfortunately the macro hardcodes the channel's address to AD5686_ADDR_DAC0. As a result writing to any of the channels will change the value of the first channel. This patch fixes the issue by calculating the channel address based on the channel number. Signed-off-by: Lars-Peter Clausen --- drivers/staging/iio/dac/ad5686.c | 7 ++----- 1 files changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/staging/iio/dac/ad5686.c b/drivers/staging/iio/dac/ad5686.c index b55ef42..adf898f 100644 --- a/drivers/staging/iio/dac/ad5686.c +++ b/drivers/staging/iio/dac/ad5686.c @@ -26,10 +26,7 @@ #define AD5686_ADDR(x) ((x) << 16) #define AD5686_CMD(x) ((x) << 20) -#define AD5686_ADDR_DAC0 0x1 -#define AD5686_ADDR_DAC1 0x2 -#define AD5686_ADDR_DAC2 0x4 -#define AD5686_ADDR_DAC3 0x8 +#define AD5686_ADDR_DAC(chan) (0x1 << (chan)) #define AD5686_ADDR_ALL_DAC 0xF #define AD5686_CMD_NOOP 0x0 @@ -103,7 +100,7 @@ enum ad5686_supported_device_ids { .output = 1, \ .channel = chan, \ .info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED), \ - .address = AD5686_ADDR_DAC0, \ + .address = AD5686_ADDR_DAC(chan), \ .scan_type = IIO_ST('u', bits, 16, shift) \ } static const struct ad5686_chip_info ad5686_chip_info_tbl[] = { -- 1.7.2.5