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authorPatil, Rachna <rachna@ti.com>2013-01-24 03:45:05 +0000
committerSebastian Andrzej Siewior <bigeasy@linutronix.de>2013-06-12 18:03:55 +0200
commitabeccee40320245a2a6a006dc8466a703cbd1d5e (patch)
tree1c6709c2d53fd65f77a226abab9a552e5ce73fb5 /include/linux/mfd
parenta9bce1b03c2199e66d36cda8aac675338bc074a7 (diff)
downloadop-kernel-dev-abeccee40320245a2a6a006dc8466a703cbd1d5e.zip
op-kernel-dev-abeccee40320245a2a6a006dc8466a703cbd1d5e.tar.gz
input: ti_am33x_tsc: Step enable bits made configurable
Current code has hard coded value written to step enable bits. Now the bits are updated based on how many steps are needed to be configured got from platform data. The user needs to take care not to exceed the count more than 16. While using ADC and TSC one should take care to set this parameter correctly. Sebastian added the common lock and moved the code, that manipulates the steps, from into the mfd module. Signed-off-by: Patil, Rachna <rachna@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Diffstat (limited to 'include/linux/mfd')
-rw-r--r--include/linux/mfd/ti_am335x_tscadc.h8
1 files changed, 6 insertions, 2 deletions
diff --git a/include/linux/mfd/ti_am335x_tscadc.h b/include/linux/mfd/ti_am335x_tscadc.h
index 8114e4e..4258627 100644
--- a/include/linux/mfd/ti_am335x_tscadc.h
+++ b/include/linux/mfd/ti_am335x_tscadc.h
@@ -46,8 +46,6 @@
/* Step Enable */
#define STEPENB_MASK (0x1FFFF << 0)
#define STEPENB(val) ((val) << 0)
-#define STPENB_STEPENB STEPENB(0x1FFFF)
-#define STPENB_STEPENB_TC STEPENB(0x1FFF)
/* IRQ enable */
#define IRQENB_HW_PEN BIT(0)
@@ -141,6 +139,8 @@ struct ti_tscadc_dev {
void __iomem *tscadc_base;
int irq;
struct mfd_cell cells[TSCADC_CELLS];
+ u32 reg_se_cache;
+ spinlock_t reg_lock;
/* tsc device */
struct titsc *tsc;
@@ -156,4 +156,8 @@ static inline struct ti_tscadc_dev *ti_tscadc_dev_get(struct platform_device *p)
return *tscadc_dev;
}
+void am335x_tsc_se_update(struct ti_tscadc_dev *tsadc);
+void am335x_tsc_se_set(struct ti_tscadc_dev *tsadc, u32 val);
+void am335x_tsc_se_clr(struct ti_tscadc_dev *tsadc, u32 val);
+
#endif
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