From f27f218cdfb12c9d2b285ec4a0bce588b5c531d3 Mon Sep 17 00:00:00 2001 From: Catalin Marinas Date: Wed, 1 Feb 2006 19:25:58 +0000 Subject: [PATCH] [ARM] 3290/1: Fix the FIFO size detection Patch from Catalin Marinas AACI reports TX FIFO full after the first write to it if the AC97 is not enabled. This patch enables the AC97 probing before the check for the TX FIFO size. The patch also adds a warning if the TX FIFO size is not multiple of 16. Signed-off-by: Catalin Marinas Signed-off-by: Russell King --- sound/arm/aaci.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/sound/arm/aaci.c b/sound/arm/aaci.c index 54147c1f6361..149feb410654 100644 --- a/sound/arm/aaci.c +++ b/sound/arm/aaci.c @@ -882,14 +882,20 @@ static int __devinit aaci_probe(struct amba_device *dev, void *id) writel(0x1fff, aaci->base + AACI_INTCLR); writel(aaci->maincr, aaci->base + AACI_MAINCR); + ret = aaci_probe_ac97(aaci); + if (ret) + goto out; + /* - * Size the FIFOs. + * Size the FIFOs (must be multiple of 16). */ aaci->fifosize = aaci_size_fifo(aaci); - - ret = aaci_probe_ac97(aaci); - if (ret) + if (aaci->fifosize & 15) { + printk(KERN_WARNING "AACI: fifosize = %d not supported\n", + aaci->fifosize); + ret = -ENODEV; goto out; + } ret = aaci_init_pcm(aaci); if (ret) -- 2.20.1