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Re: [Qemu-devel] [PATCH] Fix obvious mistake in pxa2xx i2s driver
From: |
Aurelien Jarno |
Subject: |
Re: [Qemu-devel] [PATCH] Fix obvious mistake in pxa2xx i2s driver |
Date: |
Sun, 20 Feb 2011 19:24:46 +0100 |
User-agent: |
Mutt/1.5.20 (2009-06-14) |
On Mon, Feb 14, 2011 at 06:59:10PM +0200, Vasily Khoruzhick wrote:
> RST bit is (1 << 3) bit, not (1 << 2), fix condition
> that enables i2s if ENB is set and RST is not set.
>
> Signed-off-by: Vasily Khoruzhick <address@hidden>
> ---
> hw/pxa2xx.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/hw/pxa2xx.c b/hw/pxa2xx.c
> index d966846..68b67ae 100644
> --- a/hw/pxa2xx.c
> +++ b/hw/pxa2xx.c
> @@ -1631,7 +1631,7 @@ static void pxa2xx_i2s_write(void *opaque,
> target_phys_addr_t addr,
> }
> if (value & (1 << 4)) /* EFWR */
> printf("%s: Attempt to use special function\n", __FUNCTION__);
> - s->enable = ((value ^ 4) & 5) == 5; /* ENB && !RST*/
> + s->enable = ((value ^ (1 << 3)) & 9) == 9; /* ENB && !RST*/
> pxa2xx_i2s_update(s);
> break;
> case SACR1:
The fix looks fine, but the resulting code is probably over
engineered... What about:
s->enable = (value & 9) == 1;
?
--
Aurelien Jarno GPG: 1024D/F1BCDB73
address@hidden http://www.aurel32.net