From mboxrd@z Thu Jan 1 00:00:00 1970 From: Charles Keepax Subject: [PATCH 2/9] ASoC: arizona: Add defines for FLL configuration constants Date: Fri, 7 Mar 2014 16:34:18 +0000 Message-ID: <1394210065-23941-3-git-send-email-ckeepax@opensource.wolfsonmicro.com> References: <1394210065-23941-1-git-send-email-ckeepax@opensource.wolfsonmicro.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from opensource.wolfsonmicro.com (opensource.wolfsonmicro.com [80.75.67.52]) by alsa0.perex.cz (Postfix) with ESMTP id E17D3265A19 for ; Fri, 7 Mar 2014 17:42:49 +0100 (CET) In-Reply-To: <1394210065-23941-1-git-send-email-ckeepax@opensource.wolfsonmicro.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org To: broonie@kernel.org Cc: alsa-devel@alsa-project.org, patches@opensource.wolfsonmicro.com, lee.jones@linaro.org, lgirdwood@gmail.com, sameo@linux.intel.com List-Id: alsa-devel@alsa-project.org Improve readability by adding defines for some of the constants associated with FLL configuration. Signed-off-by: Charles Keepax --- sound/soc/codecs/arizona.c | 16 +++++++++++----- 1 files changed, 11 insertions(+), 5 deletions(-) diff --git a/sound/soc/codecs/arizona.c b/sound/soc/codecs/arizona.c index e4c1c9e..e6f8290 100644 --- a/sound/soc/codecs/arizona.c +++ b/sound/soc/codecs/arizona.c @@ -53,6 +53,12 @@ #define ARIZONA_AIF_RX_ENABLES 0x1A #define ARIZONA_AIF_FORCE_WRITE 0x1B +#define ARIZONA_FLL_MAX_FREF 13500000 +#define ARIZONA_FLL_MIN_FVCO 90000000 +#define ARIZONA_FLL_MAX_REFDIV 8 +#define ARIZONA_FLL_MIN_OUTDIV 2 +#define ARIZONA_FLL_MAX_OUTDIV 7 + #define arizona_fll_err(_fll, fmt, ...) \ dev_err(_fll->arizona->dev, "FLL%d: " fmt, _fll->id, ##__VA_ARGS__) #define arizona_fll_warn(_fll, fmt, ...) \ @@ -1399,11 +1405,11 @@ static int arizona_calc_fll(struct arizona_fll *fll, /* Fref must be <=13.5MHz */ div = 1; cfg->refdiv = 0; - while ((Fref / div) > 13500000) { + while ((Fref / div) > ARIZONA_FLL_MAX_FREF) { div *= 2; cfg->refdiv++; - if (div > 8) { + if (div > ARIZONA_FLL_MAX_REFDIV) { arizona_fll_err(fll, "Can't scale %dMHz in to <=13.5MHz\n", Fref); @@ -1415,10 +1421,10 @@ static int arizona_calc_fll(struct arizona_fll *fll, Fref /= div; /* Fvco should be over the targt; don't check the upper bound */ - div = 2; - while (Fout * div < 90000000 * fll->vco_mult) { + div = ARIZONA_FLL_MIN_OUTDIV; + while (Fout * div < ARIZONA_FLL_MIN_FVCO * fll->vco_mult) { div++; - if (div > 7) { + if (div > ARIZONA_FLL_MAX_OUTDIV) { arizona_fll_err(fll, "No FLL_OUTDIV for Fout=%uHz\n", Fout); return -EINVAL; -- 1.7.2.5