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Merge 3.12-rc2 into staging-next.

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This resolves the merge problem with two iio drivers that Stephen
Rothwell pointed out.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman
2013-09-25 08:59:04 -07:00
parent 3ffdea3fec 4a10c2ac2f
commit e2aad1d571
458 changed files with 4057 additions and 2273 deletions
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11
drivers/iio/adc/at91_adc.c
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@@ -550,7 +550,7 @@ static const struct iio_info at91_adc_info = {
static int at91_adc_probe(struct platform_device *pdev)
{
unsigned int prsc, mstrclk, ticks, adc_clk, shtim;
unsigned int prsc, mstrclk, ticks, adc_clk, adc_clk_khz, shtim;
int ret;
struct iio_dev *idev;
struct at91_adc_state *st;
@@ -643,6 +643,7 @@ static int at91_adc_probe(struct platform_device *pdev)
*/
mstrclk = clk_get_rate(st->clk);
adc_clk = clk_get_rate(st->adc_clk);
adc_clk_khz = adc_clk / 1000;
prsc = (mstrclk / (2 * adc_clk)) - 1;
if (!st->startup_time) {
@@ -656,15 +657,15 @@ static int at91_adc_probe(struct platform_device *pdev)
* defined in the electrical characteristics of the board, divided by 8.
* The formula thus is : Startup Time = (ticks + 1) * 8 / ADC Clock
*/
ticks = round_up((st->startup_time * adc_clk /
1000000) - 1, 8) / 8;
ticks = round_up((st->startup_time * adc_clk_khz /
1000) - 1, 8) / 8;
/*
* a minimal Sample and Hold Time is necessary for the ADC to guarantee
* the best converted final value between two channels selection
* The formula thus is : Sample and Hold Time = (shtim + 1) / ADCClock
*/
shtim = round_up((st->sample_hold_time * adc_clk /
1000000) - 1, 1);
shtim = round_up((st->sample_hold_time * adc_clk_khz /
1000) - 1, 1);
reg = AT91_ADC_PRESCAL_(prsc) & st->registers->mr_prescal_mask;
reg |= AT91_ADC_STARTUP_(ticks) & st->registers->mr_startup_mask;