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Diffstat (limited to 'target/linux/xburst/patches-2.6.37/060-adc-touchscreen.patch')
-rw-r--r--target/linux/xburst/patches-2.6.37/060-adc-touchscreen.patch90
1 files changed, 90 insertions, 0 deletions
diff --git a/target/linux/xburst/patches-2.6.37/060-adc-touchscreen.patch b/target/linux/xburst/patches-2.6.37/060-adc-touchscreen.patch
new file mode 100644
index 0000000000..85697aa990
--- /dev/null
+++ b/target/linux/xburst/patches-2.6.37/060-adc-touchscreen.patch
@@ -0,0 +1,90 @@
+From 424b737e5a1858dafc8138fd59d154f0493b21d0 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 13/23] 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,
+@@ -248,6 +270,17 @@ const struct mfd_cell jz4740_adc_cells[]
+ .data_size = sizeof(struct mfd_cell),
+
+ .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,
+ },
+ };
+--- 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)
+