AcoSail/kernel_optimize_test
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Input: auo-pixcir-ts - handle reset gpio directly

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Devicetree based platforms don't handle device callbacks very well
and until now no board has come along that needs more extended hwinit
than pulling the rst gpio high.

Therefore pull the reset handling directly into the driver and remove
the callbacks from the driver.

If extended device setup is needed at some later point, power-sequences
would probably be the solution of choice.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Heiko Stübner 2013-02-23 12:06:44 -08:00 committed by Dmitry Torokhov
parent fa65630862
commit 27cef8b47c
2 changed files with 21 additions and 9 deletions
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26
drivers/input/touchscreen/auo-pixcir-ts.c
View File

@ -511,8 +511,21 @@ static int auo_pixcir_probe(struct i2c_client *client,
goto err_gpio_dir;
}
if (pdata->init_hw)
pdata->init_hw(client);
ret = gpio_request(pdata->gpio_rst, "auo_pixcir_ts_rst");
if (ret) {
dev_err(&client->dev, "request of gpio %d failed, %d\n",
pdata->gpio_rst, ret);
goto err_gpio_dir;
}
ret = gpio_direction_output(pdata->gpio_rst, 1);
if (ret) {
dev_err(&client->dev, "setting direction of gpio %d failed %d\n",
pdata->gpio_rst, ret);
goto err_gpio_rst;
}
msleep(200);
ts->client = client;
ts->touch_ind_mode = 0;
@ -597,8 +610,9 @@ static int auo_pixcir_probe(struct i2c_client *client,
err_fw_vers:
input_free_device(input_dev);
err_input_alloc:
if (pdata->exit_hw)
pdata->exit_hw(client);
gpio_set_value(pdata->gpio_rst, 0);
err_gpio_rst:
gpio_free(pdata->gpio_rst);
err_gpio_dir:
gpio_free(pdata->gpio_int);
err_gpio_int:
@ -616,8 +630,8 @@ static int auo_pixcir_remove(struct i2c_client *client)
input_unregister_device(ts->input);
if (pdata->exit_hw)
pdata->exit_hw(client);
gpio_set_value(pdata->gpio_rst, 0);
gpio_free(pdata->gpio_rst);
gpio_free(pdata->gpio_int);

4
include/linux/input/auo-pixcir-ts.h
View File

@ -43,12 +43,10 @@
*/
struct auo_pixcir_ts_platdata {
int gpio_int;
int gpio_rst;
int int_setting;
void (*init_hw)(struct i2c_client *);
void (*exit_hw)(struct i2c_client *);
unsigned int x_max;
unsigned int y_max;
};