| 1 | From 9e8c7624668261bd0b6ee751642ca2c60a8aaba9 Mon Sep 17 00:00:00 2001 |
| 2 | From: Lars-Peter Clausen <lars@metafoo.de> |
| 3 | Date: Sun, 5 Sep 2010 20:36:59 +0200 |
| 4 | Subject: [PATCH] MFD: jz4740-adc: Add support for the touchscreen part of the adc unit |
| 5 | |
| 6 | --- |
| 7 | drivers/mfd/jz4740-adc.c | 39 ++++++++++++++++++++++++++++++++++++--- |
| 8 | include/linux/jz4740-adc.h | 2 +- |
| 9 | 2 files changed, 37 insertions(+), 4 deletions(-) |
| 10 | |
| 11 | --- a/drivers/mfd/jz4740-adc.c |
| 12 | +++ b/drivers/mfd/jz4740-adc.c |
| 13 | @@ -46,9 +46,9 @@ |
| 14 | enum { |
| 15 | JZ_ADC_IRQ_ADCIN = 0, |
| 16 | JZ_ADC_IRQ_BATTERY, |
| 17 | - JZ_ADC_IRQ_TOUCH, |
| 18 | - JZ_ADC_IRQ_PENUP, |
| 19 | - JZ_ADC_IRQ_PENDOWN, |
| 20 | + JZ_ADC_IRQ_TS_DATA_READY, |
| 21 | + JZ_ADC_IRQ_TS_PENUP, |
| 22 | + JZ_ADC_IRQ_TS_PENDOWN, |
| 23 | }; |
| 24 | |
| 25 | struct jz4740_adc { |
| 26 | @@ -101,6 +101,7 @@ static void jz4740_adc_irq_ack(unsigned |
| 27 | struct jz4740_adc *adc = get_irq_chip_data(irq); |
| 28 | |
| 29 | irq -= adc->irq_base; |
| 30 | + |
| 31 | writeb(BIT(irq), adc->base + JZ_REG_ADC_STATUS); |
| 32 | } |
| 33 | |
| 34 | @@ -227,6 +228,27 @@ static struct resource jz4740_battery_re |
| 35 | }, |
| 36 | }; |
| 37 | |
| 38 | +static struct resource jz4740_ts_resources[] = { |
| 39 | + { |
| 40 | + .start = JZ_ADC_IRQ_TS_DATA_READY, |
| 41 | + .flags = IORESOURCE_IRQ, |
| 42 | + }, |
| 43 | + { |
| 44 | + .start = JZ_ADC_IRQ_TS_PENUP, |
| 45 | + .flags = IORESOURCE_IRQ, |
| 46 | + }, |
| 47 | + { |
| 48 | + .start = JZ_ADC_IRQ_TS_PENDOWN, |
| 49 | + .flags = IORESOURCE_IRQ, |
| 50 | + }, |
| 51 | + { |
| 52 | + .start = JZ_REG_ADC_TOUCHSCREEN_BASE, |
| 53 | + .end = JZ_REG_ADC_TOUCHSCREEN_BASE + 0xb, |
| 54 | + .flags = IORESOURCE_MEM, |
| 55 | + }, |
| 56 | +}; |
| 57 | + |
| 58 | + |
| 59 | const struct mfd_cell jz4740_adc_cells[] = { |
| 60 | { |
| 61 | .id = 0, |
| 62 | @@ -250,6 +272,17 @@ const struct mfd_cell jz4740_adc_cells[] |
| 63 | .enable = jz4740_adc_cell_enable, |
| 64 | .disable = jz4740_adc_cell_disable, |
| 65 | }, |
| 66 | + { |
| 67 | + .id = 2, |
| 68 | + .name = "jz4740-ts", |
| 69 | + .num_resources = ARRAY_SIZE(jz4740_ts_resources), |
| 70 | + .resources = jz4740_ts_resources, |
| 71 | + .platform_data = (void *)&jz4740_adc_cells[2], |
| 72 | + .data_size = sizeof(struct mfd_cell), |
| 73 | + |
| 74 | + .enable = jz4740_adc_cell_enable, |
| 75 | + .disable = jz4740_adc_cell_disable, |
| 76 | + }, |
| 77 | }; |
| 78 | |
| 79 | static int __devinit jz4740_adc_probe(struct platform_device *pdev) |
| 80 | --- a/include/linux/jz4740-adc.h |
| 81 | +++ b/include/linux/jz4740-adc.h |
| 82 | @@ -25,7 +25,7 @@ int jz4740_adc_set_config(struct device |
| 83 | #define JZ_ADC_CONFIG_BAT_MB BIT(4) |
| 84 | |
| 85 | #define JZ_ADC_CONFIG_DNUM(dnum) ((dnum) << 16) |
| 86 | -#define JZ_ADC_CONFIG_XYZ_OFFSET(dnum) ((xyz) << 13) |
| 87 | +#define JZ_ADC_CONFIG_XYZ_OFFSET(xyz) ((xyz) << 13) |
| 88 | #define JZ_ADC_CONFIG_SAMPLE_NUM(x) ((x) << 10) |
| 89 | #define JZ_ADC_CONFIG_CLKDIV(div) ((div) << 5) |
| 90 | |
| 91 | |
