diff options
author | Lars-Peter Clausen <lars@metafoo.de> | 2010-07-11 21:48:08 -0400 |
---|---|---|
committer | Samuel Ortiz <sameo@linux.intel.com> | 2010-08-12 05:27:58 -0400 |
commit | 91f4debf5e2df904e7fade530bd1a6d182efd72c (patch) | |
tree | 263ca3ab3ca3a52e011c4500f9afc051190ad023 /include/linux | |
parent | b12c35e22d102172cd2a69581f939ec9a70a7942 (diff) |
mfd: Add JZ4740 ADC driver
This patch adds a MFD driver for the JZ4740 ADC unit. The driver is used to
demultiplex IRQs and synchronize access to shared registers between the
battery, hwmon and (future) touchscreen driver.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'include/linux')
-rw-r--r-- | include/linux/jz4740-adc.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/include/linux/jz4740-adc.h b/include/linux/jz4740-adc.h new file mode 100644 index 000000000000..9053f95e9687 --- /dev/null +++ b/include/linux/jz4740-adc.h | |||
@@ -0,0 +1,32 @@ | |||
1 | |||
2 | #ifndef __LINUX_JZ4740_ADC | ||
3 | #define __LINUX_JZ4740_ADC | ||
4 | |||
5 | #include <linux/device.h> | ||
6 | |||
7 | /* | ||
8 | * jz4740_adc_set_config - Configure a JZ4740 adc device | ||
9 | * @dev: Pointer to a jz4740-adc device | ||
10 | * @mask: Mask for the config value to be set | ||
11 | * @val: Value to be set | ||
12 | * | ||
13 | * This function can be used by the JZ4740 ADC mfd cells to configure their | ||
14 | * options in the shared config register. | ||
15 | */ | ||
16 | int jz4740_adc_set_config(struct device *dev, uint32_t mask, uint32_t val); | ||
17 | |||
18 | #define JZ_ADC_CONFIG_SPZZ BIT(31) | ||
19 | #define JZ_ADC_CONFIG_EX_IN BIT(30) | ||
20 | #define JZ_ADC_CONFIG_DNUM_MASK (0x7 << 16) | ||
21 | #define JZ_ADC_CONFIG_DMA_ENABLE BIT(15) | ||
22 | #define JZ_ADC_CONFIG_XYZ_MASK (0x2 << 13) | ||
23 | #define JZ_ADC_CONFIG_SAMPLE_NUM_MASK (0x7 << 10) | ||
24 | #define JZ_ADC_CONFIG_CLKDIV_MASK (0xf << 5) | ||
25 | #define JZ_ADC_CONFIG_BAT_MB BIT(4) | ||
26 | |||
27 | #define JZ_ADC_CONFIG_DNUM(dnum) ((dnum) << 16) | ||
28 | #define JZ_ADC_CONFIG_XYZ_OFFSET(dnum) ((xyz) << 13) | ||
29 | #define JZ_ADC_CONFIG_SAMPLE_NUM(x) ((x) << 10) | ||
30 | #define JZ_ADC_CONFIG_CLKDIV(div) ((div) << 5) | ||
31 | |||
32 | #endif | ||