diff options
Diffstat (limited to 'drivers/power')
| -rw-r--r-- | drivers/power/hdq.c | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/drivers/power/hdq.c b/drivers/power/hdq.c index 755a5efe5ec..d64f8f69e0c 100644 --- a/drivers/power/hdq.c +++ b/drivers/power/hdq.c @@ -33,7 +33,7 @@ enum hdq_bitbang_states { HDQB_WAIT_TX, }; -struct hdq_priv { +static struct hdq_priv { u8 hdq_probed; /* nonzero after HDQ driver probed */ struct mutex hdq_lock; /* if you want to use hdq, you have to take lock */ unsigned long hdq_gpio_pin; /* GTA02 = GPD14 which pin to meddle with */ @@ -49,11 +49,26 @@ struct hdq_priv { u8 hdq_shifter; u8 hdq_tx_data_done; enum hdq_bitbang_states hdq_state; + int reported_error; struct hdq_platform_data *pdata; } hdq_priv; +static void hdq_bad(void) +{ + if (!hdq_priv.reported_error) + printk(KERN_ERR "HDQ error: %d\n", hdq_priv.hdq_error); + hdq_priv.reported_error = 1; +} + +static void hdq_good(void) +{ + if (hdq_priv.reported_error) + printk(KERN_INFO "HDQ responds again\n"); + hdq_priv.reported_error = 0; +} + int hdq_fiq_handler(void) { if (!hdq_priv.hdq_probed) @@ -267,9 +282,10 @@ int hdq_read(int address) continue; if (hdq_priv.hdq_error) { - printk(KERN_ERR "HDQ error: %d\n", hdq_priv.hdq_error); + hdq_bad(); goto done; /* didn't see a response in good time */ } + hdq_good(); ret = hdq_priv.hdq_rx_data; goto done; @@ -308,9 +324,10 @@ int hdq_write(int address, u8 data) continue; /* something bad with FIQ */ if (hdq_priv.hdq_error) { - printk(KERN_ERR "HDQ error: %d\n", hdq_priv.hdq_error); + hdq_bad(); goto done; /* didn't see a response in good time */ } + hdq_good(); ret = 0; goto done; |