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Date: Fri, 5 Oct 2012 13:04:52 +0530
From: "Patil, Rachna" <rachna@...com>
To: <linux-kernel@...r.kernel.org>, <linux-input@...r.kernel.org>,
<linux-iio@...r.kernel.org>
CC: Samuel Ortiz <sameo@...ux.intel.com>,
Dmitry Torokhov <dmitry.torokhov@...il.com>,
Dmitry Torokhov <dtor@...l.ru>,
Jonathan Cameron <jic23@....ac.uk>,
"Patil, Rachna" <rachna@...com>
Subject: [PATCH v5 1/4] input: TSC: ti_tscadc: Rename the existing touchscreen driver
Make way for addition of MFD driver.
The existing touchsreen driver is a MFD client.
For better readability we rename the file to
indicate its functionality as only touchscreen.
Signed-off-by: Patil, Rachna <rachna@...com>
---
Changes in v2:
Missed changing the name of touchscreen header file
in the previous version.
Adding the same.
Changes in v3:
no changes.
Changes in v4:
no changes.
Changes in v5:
updated the struct and function names to match
that of file name for better readability.
drivers/input/touchscreen/Kconfig | 4 +-
drivers/input/touchscreen/Makefile | 2 +-
.../touchscreen/{ti_tscadc.c => ti_am335x_tsc.c} | 96 ++++++++++----------
.../linux/input/{ti_tscadc.h => ti_am335x_tsc.h} | 4 +-
4 files changed, 53 insertions(+), 53 deletions(-)
rename drivers/input/touchscreen/{ti_tscadc.c => ti_am335x_tsc.c} (83%)
rename include/linux/input/{ti_tscadc.h => ti_am335x_tsc.h} (88%)
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index 1ba232c..7bdb629 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -529,7 +529,7 @@ config TOUCHSCREEN_TOUCHWIN
To compile this driver as a module, choose M here: the
module will be called touchwin.
-config TOUCHSCREEN_TI_TSCADC
+config TOUCHSCREEN_TI_AM335X_TSC
tristate "TI Touchscreen Interface"
depends on ARCH_OMAP2PLUS
help
@@ -539,7 +539,7 @@ config TOUCHSCREEN_TI_TSCADC
If unsure, say N.
To compile this driver as a module, choose M here: the
- module will be called ti_tscadc.
+ module will be called ti_am335x_tsc.
config TOUCHSCREEN_ATMEL_TSADCC
tristate "Atmel Touchscreen Interface"
diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile
index 178eb12..7c4c78e 100644
--- a/drivers/input/touchscreen/Makefile
+++ b/drivers/input/touchscreen/Makefile
@@ -52,7 +52,7 @@ obj-$(CONFIG_TOUCHSCREEN_PIXCIR) += pixcir_i2c_ts.o
obj-$(CONFIG_TOUCHSCREEN_S3C2410) += s3c2410_ts.o
obj-$(CONFIG_TOUCHSCREEN_ST1232) += st1232.o
obj-$(CONFIG_TOUCHSCREEN_STMPE) += stmpe-ts.o
-obj-$(CONFIG_TOUCHSCREEN_TI_TSCADC) += ti_tscadc.o
+obj-$(CONFIG_TOUCHSCREEN_TI_AM335X_TSC) += ti_am335x_tsc.o
obj-$(CONFIG_TOUCHSCREEN_TNETV107X) += tnetv107x-ts.o
obj-$(CONFIG_TOUCHSCREEN_TOUCHIT213) += touchit213.o
obj-$(CONFIG_TOUCHSCREEN_TOUCHRIGHT) += touchright.o
diff --git a/drivers/input/touchscreen/ti_tscadc.c b/drivers/input/touchscreen/ti_am335x_tsc.c
similarity index 83%
rename from drivers/input/touchscreen/ti_tscadc.c
rename to drivers/input/touchscreen/ti_am335x_tsc.c
index ec0a442..462950a 100644
--- a/drivers/input/touchscreen/ti_tscadc.c
+++ b/drivers/input/touchscreen/ti_am335x_tsc.c
@@ -24,7 +24,7 @@
#include <linux/clk.h>
#include <linux/platform_device.h>
#include <linux/io.h>
-#include <linux/input/ti_tscadc.h>
+#include <linux/input/ti_am335x_tsc.h>
#include <linux/delay.h>
#define REG_RAWIRQSTATUS 0x024
@@ -123,7 +123,7 @@
#define ADC_CLK 3000000
#define MAX_12BIT ((1 << 12) - 1)
-struct tscadc {
+struct titsc {
struct input_dev *input;
struct clk *tsc_ick;
void __iomem *tsc_base;
@@ -134,18 +134,18 @@ struct tscadc {
int steps_to_configure;
};
-static unsigned int tscadc_readl(struct tscadc *ts, unsigned int reg)
+static unsigned int titsc_readl(struct titsc *ts, unsigned int reg)
{
return readl(ts->tsc_base + reg);
}
-static void tscadc_writel(struct tscadc *tsc, unsigned int reg,
+static void titsc_writel(struct titsc *tsc, unsigned int reg,
unsigned int val)
{
writel(val, tsc->tsc_base + reg);
}
-static void tscadc_step_config(struct tscadc *ts_dev)
+static void titsc_step_config(struct titsc *ts_dev)
{
unsigned int config;
int i, total_steps;
@@ -170,8 +170,8 @@ static void tscadc_step_config(struct tscadc *ts_dev)
}
for (i = 1; i <= ts_dev->steps_to_configure; i++) {
- tscadc_writel(ts_dev, REG_STEPCONFIG(i), config);
- tscadc_writel(ts_dev, REG_STEPDELAY(i), STEPCONFIG_OPENDLY);
+ titsc_writel(ts_dev, REG_STEPCONFIG(i), config);
+ titsc_writel(ts_dev, REG_STEPDELAY(i), STEPCONFIG_OPENDLY);
}
config = 0;
@@ -192,8 +192,8 @@ static void tscadc_step_config(struct tscadc *ts_dev)
}
for (i = (ts_dev->steps_to_configure + 1); i <= total_steps; i++) {
- tscadc_writel(ts_dev, REG_STEPCONFIG(i), config);
- tscadc_writel(ts_dev, REG_STEPDELAY(i), STEPCONFIG_OPENDLY);
+ titsc_writel(ts_dev, REG_STEPCONFIG(i), config);
+ titsc_writel(ts_dev, REG_STEPDELAY(i), STEPCONFIG_OPENDLY);
}
config = 0;
@@ -202,40 +202,40 @@ static void tscadc_step_config(struct tscadc *ts_dev)
STEPCHARGE_RFP_XPUL | STEPCHARGE_RFM_XNUR |
STEPCHARGE_INM_AN1 | STEPCHARGE_INP_AN1;
- tscadc_writel(ts_dev, REG_CHARGECONFIG, config);
- tscadc_writel(ts_dev, REG_CHARGEDELAY, CHARGEDLY_OPENDLY);
+ titsc_writel(ts_dev, REG_CHARGECONFIG, config);
+ titsc_writel(ts_dev, REG_CHARGEDELAY, CHARGEDLY_OPENDLY);
config = 0;
/* Configure to calculate pressure */
config = STEPCONFIG_MODE_HWSYNC |
STEPCONFIG_AVG_16 | STEPCONFIG_YPP |
STEPCONFIG_XNN | STEPCONFIG_INM_ADCREFM;
- tscadc_writel(ts_dev, REG_STEPCONFIG(total_steps + 1), config);
- tscadc_writel(ts_dev, REG_STEPDELAY(total_steps + 1),
+ titsc_writel(ts_dev, REG_STEPCONFIG(total_steps + 1), config);
+ titsc_writel(ts_dev, REG_STEPDELAY(total_steps + 1),
STEPCONFIG_OPENDLY);
config |= STEPCONFIG_INP_AN3 | STEPCONFIG_FIFO1;
- tscadc_writel(ts_dev, REG_STEPCONFIG(total_steps + 2), config);
- tscadc_writel(ts_dev, REG_STEPDELAY(total_steps + 2),
+ titsc_writel(ts_dev, REG_STEPCONFIG(total_steps + 2), config);
+ titsc_writel(ts_dev, REG_STEPDELAY(total_steps + 2),
STEPCONFIG_OPENDLY);
- tscadc_writel(ts_dev, REG_SE, STPENB_STEPENB);
+ titsc_writel(ts_dev, REG_SE, STPENB_STEPENB);
}
-static void tscadc_idle_config(struct tscadc *ts_config)
+static void titsc_idle_config(struct titsc *ts_config)
{
unsigned int idleconfig;
idleconfig = STEPCONFIG_YNN |
STEPCONFIG_INM_ADCREFM |
STEPCONFIG_YPN | STEPCONFIG_INP_ADCREFM;
- tscadc_writel(ts_config, REG_IDLECONFIG, idleconfig);
+ titsc_writel(ts_config, REG_IDLECONFIG, idleconfig);
}
-static void tscadc_read_coordinates(struct tscadc *ts_dev,
+static void titsc_read_coordinates(struct titsc *ts_dev,
unsigned int *x, unsigned int *y)
{
- unsigned int fifocount = tscadc_readl(ts_dev, REG_FIFO0CNT);
+ unsigned int fifocount = titsc_readl(ts_dev, REG_FIFO0CNT);
unsigned int prev_val_x = ~0, prev_val_y = ~0;
unsigned int prev_diff_x = ~0, prev_diff_y = ~0;
unsigned int read, diff;
@@ -250,7 +250,7 @@ static void tscadc_read_coordinates(struct tscadc *ts_dev,
* if true the value is reported to the sub system.
*/
for (i = 0; i < fifocount - 1; i++) {
- read = tscadc_readl(ts_dev, REG_FIFO0) & 0xfff;
+ read = titsc_readl(ts_dev, REG_FIFO0) & 0xfff;
diff = abs(read - prev_val_x);
if (diff < prev_diff_x) {
prev_diff_x = diff;
@@ -258,7 +258,7 @@ static void tscadc_read_coordinates(struct tscadc *ts_dev,
}
prev_val_x = read;
- read = tscadc_readl(ts_dev, REG_FIFO1) & 0xfff;
+ read = titsc_readl(ts_dev, REG_FIFO1) & 0xfff;
diff = abs(read - prev_val_y);
if (diff < prev_diff_y) {
prev_diff_y = diff;
@@ -268,21 +268,21 @@ static void tscadc_read_coordinates(struct tscadc *ts_dev,
}
}
-static irqreturn_t tscadc_irq(int irq, void *dev)
+static irqreturn_t titsc_irq(int irq, void *dev)
{
- struct tscadc *ts_dev = dev;
+ struct titsc *ts_dev = dev;
struct input_dev *input_dev = ts_dev->input;
unsigned int status, irqclr = 0;
unsigned int x = 0, y = 0;
unsigned int z1, z2, z;
unsigned int fsm;
- status = tscadc_readl(ts_dev, REG_IRQSTATUS);
+ status = titsc_readl(ts_dev, REG_IRQSTATUS);
if (status & IRQENB_FIFO0THRES) {
- tscadc_read_coordinates(ts_dev, &x, &y);
+ titsc_read_coordinates(ts_dev, &x, &y);
- z1 = tscadc_readl(ts_dev, REG_FIFO0) & 0xfff;
- z2 = tscadc_readl(ts_dev, REG_FIFO1) & 0xfff;
+ z1 = titsc_readl(ts_dev, REG_FIFO0) & 0xfff;
+ z2 = titsc_readl(ts_dev, REG_FIFO1) & 0xfff;
if (ts_dev->pen_down && z1 != 0 && z2 != 0) {
/*
@@ -313,10 +313,10 @@ static irqreturn_t tscadc_irq(int irq, void *dev)
*/
udelay(SEQ_SETTLE);
- status = tscadc_readl(ts_dev, REG_RAWIRQSTATUS);
+ status = titsc_readl(ts_dev, REG_RAWIRQSTATUS);
if (status & IRQENB_PENUP) {
/* Pen up event */
- fsm = tscadc_readl(ts_dev, REG_ADCFSM);
+ fsm = titsc_readl(ts_dev, REG_ADCFSM);
if (fsm == ADCFSM_STEPID) {
ts_dev->pen_down = false;
input_report_key(input_dev, BTN_TOUCH, 0);
@@ -328,9 +328,9 @@ static irqreturn_t tscadc_irq(int irq, void *dev)
irqclr |= IRQENB_PENUP;
}
- tscadc_writel(ts_dev, REG_IRQSTATUS, irqclr);
+ titsc_writel(ts_dev, REG_IRQSTATUS, irqclr);
- tscadc_writel(ts_dev, REG_SE, STPENB_STEPENB);
+ titsc_writel(ts_dev, REG_SE, STPENB_STEPENB);
return IRQ_HANDLED;
}
@@ -338,11 +338,11 @@ static irqreturn_t tscadc_irq(int irq, void *dev)
* The functions for inserting/removing driver as a module.
*/
-static int __devinit tscadc_probe(struct platform_device *pdev)
+static int __devinit titsc_probe(struct platform_device *pdev)
{
const struct tsc_data *pdata = pdev->dev.platform_data;
struct resource *res;
- struct tscadc *ts_dev;
+ struct titsc *ts_dev;
struct input_dev *input_dev;
struct clk *clk;
int err;
@@ -366,7 +366,7 @@ static int __devinit tscadc_probe(struct platform_device *pdev)
}
/* Allocate memory for device */
- ts_dev = kzalloc(sizeof(struct tscadc), GFP_KERNEL);
+ ts_dev = kzalloc(sizeof(struct titsc), GFP_KERNEL);
input_dev = input_allocate_device();
if (!ts_dev || !input_dev) {
dev_err(&pdev->dev, "failed to allocate memory.\n");
@@ -394,7 +394,7 @@ static int __devinit tscadc_probe(struct platform_device *pdev)
goto err_release_mem_region;
}
- err = request_irq(ts_dev->irq, tscadc_irq,
+ err = request_irq(ts_dev->irq, titsc_irq,
0, pdev->dev.driver->name, ts_dev);
if (err) {
dev_err(&pdev->dev, "failed to allocate irq.\n");
@@ -423,10 +423,10 @@ static int __devinit tscadc_probe(struct platform_device *pdev)
goto err_disable_clk;
}
/* CLKDIV needs to be configured to the value minus 1 */
- tscadc_writel(ts_dev, REG_CLKDIV, clk_value - 1);
+ titsc_writel(ts_dev, REG_CLKDIV, clk_value - 1);
/* Enable wake-up of the SoC using touchscreen */
- tscadc_writel(ts_dev, REG_IRQWAKEUP, IRQWKUP_ENB);
+ titsc_writel(ts_dev, REG_IRQWAKEUP, IRQWKUP_ENB);
ctrl = CNTRLREG_STEPCONFIGWRT |
CNTRLREG_TSCENB |
@@ -442,15 +442,15 @@ static int __devinit tscadc_probe(struct platform_device *pdev)
ctrl |= CNTRLREG_8WIRE;
break;
}
- tscadc_writel(ts_dev, REG_CTRL, ctrl);
+ titsc_writel(ts_dev, REG_CTRL, ctrl);
- tscadc_idle_config(ts_dev);
- tscadc_writel(ts_dev, REG_IRQENABLE, IRQENB_FIFO0THRES);
- tscadc_step_config(ts_dev);
- tscadc_writel(ts_dev, REG_FIFO0THR, ts_dev->steps_to_configure);
+ titsc_idle_config(ts_dev);
+ titsc_writel(ts_dev, REG_IRQENABLE, IRQENB_FIFO0THRES);
+ titsc_step_config(ts_dev);
+ titsc_writel(ts_dev, REG_FIFO0THR, ts_dev->steps_to_configure);
ctrl |= CNTRLREG_TSCSSENB;
- tscadc_writel(ts_dev, REG_CTRL, ctrl);
+ titsc_writel(ts_dev, REG_CTRL, ctrl);
input_dev->name = "ti-tsc-adc";
input_dev->dev.parent = &pdev->dev;
@@ -485,9 +485,9 @@ err_free_mem:
return err;
}
-static int __devexit tscadc_remove(struct platform_device *pdev)
+static int __devexit titsc_remove(struct platform_device *pdev)
{
- struct tscadc *ts_dev = platform_get_drvdata(pdev);
+ struct titsc *ts_dev = platform_get_drvdata(pdev);
struct resource *res;
free_irq(ts_dev->irq, ts_dev);
@@ -508,8 +508,8 @@ static int __devexit tscadc_remove(struct platform_device *pdev)
}
static struct platform_driver ti_tsc_driver = {
- .probe = tscadc_probe,
- .remove = __devexit_p(tscadc_remove),
+ .probe = titsc_probe,
+ .remove = __devexit_p(titsc_remove),
.driver = {
.name = "tsc",
.owner = THIS_MODULE,
diff --git a/include/linux/input/ti_tscadc.h b/include/linux/input/ti_am335x_tsc.h
similarity index 88%
rename from include/linux/input/ti_tscadc.h
rename to include/linux/input/ti_am335x_tsc.h
index ad442a3..49269a2 100644
--- a/include/linux/input/ti_tscadc.h
+++ b/include/linux/input/ti_am335x_tsc.h
@@ -1,5 +1,5 @@
-#ifndef __LINUX_TI_TSCADC_H
-#define __LINUX_TI_TSCADC_H
+#ifndef __LINUX_TI_AM335X_TSC_H
+#define __LINUX_TI_AM335X_TSC_H
/**
* struct tsc_data Touchscreen wire configuration
--
1.7.0.4
--
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