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