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From 9e8c7624668261bd0b6ee751642ca2c60a8aaba9 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sun, 5 Sep 2010 20:36:59 +0200
Subject: [PATCH] MFD: jz4740-adc: Add support for the touchscreen part of the adc unit
---
drivers/mfd/jz4740-adc.c | 39 ++++++++++++++++++++++++++++++++++++---
include/linux/jz4740-adc.h | 2 +-
2 files changed, 37 insertions(+), 4 deletions(-)
--- a/drivers/mfd/jz4740-adc.c
+++ b/drivers/mfd/jz4740-adc.c
@@ -46,9 +46,9 @@
enum {
JZ_ADC_IRQ_ADCIN = 0,
JZ_ADC_IRQ_BATTERY,
- JZ_ADC_IRQ_TOUCH,
- JZ_ADC_IRQ_PENUP,
- JZ_ADC_IRQ_PENDOWN,
+ JZ_ADC_IRQ_TS_DATA_READY,
+ JZ_ADC_IRQ_TS_PENUP,
+ JZ_ADC_IRQ_TS_PENDOWN,
};
struct jz4740_adc {
@@ -101,6 +101,7 @@ static void jz4740_adc_irq_ack(unsigned
struct jz4740_adc *adc = get_irq_chip_data(irq);
irq -= adc->irq_base;
+
writeb(BIT(irq), adc->base + JZ_REG_ADC_STATUS);
}
@@ -227,6 +228,27 @@ static struct resource jz4740_battery_re
},
};
+static struct resource jz4740_ts_resources[] = {
+ {
+ .start = JZ_ADC_IRQ_TS_DATA_READY,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .start = JZ_ADC_IRQ_TS_PENUP,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .start = JZ_ADC_IRQ_TS_PENDOWN,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .start = JZ_REG_ADC_TOUCHSCREEN_BASE,
+ .end = JZ_REG_ADC_TOUCHSCREEN_BASE + 0xb,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+
const struct mfd_cell jz4740_adc_cells[] = {
{
.id = 0,
@@ -250,6 +272,17 @@ const struct mfd_cell jz4740_adc_cells[]
.enable = jz4740_adc_cell_enable,
.disable = jz4740_adc_cell_disable,
},
+ {
+ .id = 2,
+ .name = "jz4740-ts",
+ .num_resources = ARRAY_SIZE(jz4740_ts_resources),
+ .resources = jz4740_ts_resources,
+ .platform_data = (void *)&jz4740_adc_cells[2],
+ .data_size = sizeof(struct mfd_cell),
+
+ .enable = jz4740_adc_cell_enable,
+ .disable = jz4740_adc_cell_disable,
+ },
};
static int __devinit jz4740_adc_probe(struct platform_device *pdev)
--- a/include/linux/jz4740-adc.h
+++ b/include/linux/jz4740-adc.h
@@ -25,7 +25,7 @@ int jz4740_adc_set_config(struct device
#define JZ_ADC_CONFIG_BAT_MB BIT(4)
#define JZ_ADC_CONFIG_DNUM(dnum) ((dnum) << 16)
-#define JZ_ADC_CONFIG_XYZ_OFFSET(dnum) ((xyz) << 13)
+#define JZ_ADC_CONFIG_XYZ_OFFSET(xyz) ((xyz) << 13)
#define JZ_ADC_CONFIG_SAMPLE_NUM(x) ((x) << 10)
#define JZ_ADC_CONFIG_CLKDIV(div) ((div) << 5)
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