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authorJosh Wu <josh.wu@atmel.com>2013-10-08 04:48:00 +0100
committerJonathan Cameron <jic23@kernel.org>2013-10-09 21:15:39 +0100
commit2b6d598bc9043f51d2092d10392a6e3c161cdff7 (patch)
tree241b7fba37b8960315fa8b7c5b2f8e34f46a8839 /drivers/iio/adc/at91_adc.c
parentc46016665fff1dcf08d6046cee45c98781996567 (diff)
iio: at91: move the num_channels from DT to driver itself
CC: devicetree@vger.kernel.org Signed-off-by: Josh Wu <josh.wu@atmel.com> Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/iio/adc/at91_adc.c')
-rw-r--r--drivers/iio/adc/at91_adc.c12
1 files changed, 5 insertions, 7 deletions
diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c
index abce01b9ff91..690a560e0dab 100644
--- a/drivers/iio/adc/at91_adc.c
+++ b/drivers/iio/adc/at91_adc.c
@@ -43,6 +43,7 @@ struct at91_adc_caps {
/* startup time calculate function */
u32 (*calc_startup_ticks)(u8 startup_time, u32 adc_clk_khz);
+ u8 num_channels;
struct at91_adc_reg_desc registers;
};
@@ -496,13 +497,6 @@ static int at91_adc_probe_dt(struct at91_adc_state *st,
}
st->channels_mask = prop;
- if (of_property_read_u32(node, "atmel,adc-num-channels", &prop)) {
- dev_err(&idev->dev, "Missing adc-num-channels property in the DT.\n");
- ret = -EINVAL;
- goto error_ret;
- }
- st->num_channels = prop;
-
st->sleep_mode = of_property_read_bool(node, "atmel,adc-sleep-mode");
if (of_property_read_u32(node, "atmel,adc-startup-time", &prop)) {
@@ -528,6 +522,7 @@ static int at91_adc_probe_dt(struct at91_adc_state *st,
goto error_ret;
st->registers = &st->caps->registers;
+ st->num_channels = st->caps->num_channels;
st->trigger_number = of_get_child_count(node);
st->trigger_list = devm_kzalloc(&idev->dev, st->trigger_number *
sizeof(struct at91_adc_trigger),
@@ -773,6 +768,7 @@ static int at91_adc_remove(struct platform_device *pdev)
#ifdef CONFIG_OF
static struct at91_adc_caps at91sam9260_caps = {
.calc_startup_ticks = calc_startup_ticks_9260,
+ .num_channels = 4,
.registers = {
.channel_base = AT91_ADC_CHR(0),
.drdy_mask = AT91_ADC_DRDY,
@@ -785,6 +781,7 @@ static struct at91_adc_caps at91sam9260_caps = {
static struct at91_adc_caps at91sam9g45_caps = {
.calc_startup_ticks = calc_startup_ticks_9260, /* same as 9260 */
+ .num_channels = 8,
.registers = {
.channel_base = AT91_ADC_CHR(0),
.drdy_mask = AT91_ADC_DRDY,
@@ -797,6 +794,7 @@ static struct at91_adc_caps at91sam9g45_caps = {
static struct at91_adc_caps at91sam9x5_caps = {
.calc_startup_ticks = calc_startup_ticks_9x5,
+ .num_channels = 12,
.registers = {
.channel_base = AT91_ADC_CDR0_9X5,
.drdy_mask = AT91_ADC_SR_DRDY_9X5,