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F
FMC ADC 100M 14b 4cha
Commit c7acbd14 authored by Federico Vaga's avatar Federico Vaga
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sw:drv: wait for serdes at probe time 

Signed-off-by: Federico Vaga's avatarFederico Vaga <federico.vaga@cern.ch>
parent 5b1511c4
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software/kernel/fa-core.c
View file @ c7acbd14
......@@ -375,6 +375,21 @@ static bool fa_adc_is_serdes_ready(struct fa_dev *fa)
return fa_adc_is_serdes_pll_locked(fa) && fa_adc_is_serdes_synced(fa);
}
static int fa_adc_wait_serdes_ready(struct fa_dev *fa, unsigned int timeout)
{
unsigned long j;
j = jiffies + timeout;
while (!fa_adc_is_serdes_ready(fa)) {
if (time_after(jiffies, j))
return -ETIMEDOUT;
cpu_relax();
}
return 0;
}
/*
* zfad_fsm_command
* @fa: the fmc-adc descriptor
......@@ -700,6 +715,11 @@ int fa_probe(struct platform_device *pdev)
if (err)
goto out_dma;
err = fa_adc_wait_serdes_ready(fa, msecs_to_jiffies(10));
if (err)
goto out_serdes;
/* init all subsystems */
for (i = 0, m = mods; i < ARRAY_SIZE(mods); i++, m++) {
dev_dbg(fa->msgdev, "Calling init for \"%s\"\n", m->name);
......@@ -727,6 +747,7 @@ out:
if (m->exit)
m->exit(fa);
iounmap(fa->fa_top_level);
out_serdes:
fa_dma_release_channel(fa);
out_dma:
out_fmc_err:
......
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