diff options
Diffstat (limited to 'drivers/input/touchscreen/fusion_F0710A.c')
| -rw-r--r-- | drivers/input/touchscreen/fusion_F0710A.c | 27 |
1 files changed, 17 insertions, 10 deletions
diff --git a/drivers/input/touchscreen/fusion_F0710A.c b/drivers/input/touchscreen/fusion_F0710A.c index edecf98d968e..779c3e83a402 100644 --- a/drivers/input/touchscreen/fusion_F0710A.c +++ b/drivers/input/touchscreen/fusion_F0710A.c @@ -89,6 +89,16 @@ bail1: return ret; } +static void fusion_F0710A_reset(void) +{ + /* Generate a 0 => 1 edge explicitly, and wait for startup... */ + gpio_set_value(fusion_F0710A.gpio_reset, 0); + msleep(10); + gpio_set_value(fusion_F0710A.gpio_reset, 1); + /* Wait for startup (up to 125ms according to datasheet) */ + msleep(125); +} + #define WC_RETRY_COUNT 3 static int fusion_F0710A_write_complete(void) { @@ -99,8 +109,11 @@ static int fusion_F0710A_write_complete(void) ret = fusion_F0710A_write_u8(fusion_F0710A_SCAN_COMPLETE, 0); if(ret == 0) break; - else - dev_err(&fusion_F0710A.client->dev, "Write complete failed(%d): %d\n", i, ret); + else { + dev_warn(&fusion_F0710A.client->dev, + "Write complete failed(%d): %d. Resetting controller...\n", i, ret); + fusion_F0710A_reset(); + } } return ret; @@ -285,14 +298,8 @@ static int fusion_F0710A_probe(struct i2c_client *i2c, const struct i2c_device_i if ((gpio_request(pdata->gpio_reset, "Fusion reset") == 0) && (gpio_direction_output(pdata->gpio_reset, 1) == 0)) { - - /* Generate a 0 => 1 edge explicitly, and wait for startup... */ - gpio_set_value(pdata->gpio_reset, 0); - msleep(10); - gpio_set_value(pdata->gpio_reset, 1); - /* Wait for startup (up to 125ms according to datasheet) */ - msleep(125); - + fusion_F0710A.gpio_reset = pdata->gpio_reset; + fusion_F0710A_reset(); gpio_export(pdata->gpio_reset, 0); } else { dev_warn(&i2c->dev, "Could not obtain GPIO for Fusion reset\n"); |