From: Peter Ujfalusi <peter.ujfalusi@nokia.com> To: alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org Cc: sameo@linux.intel.com, tony@atomide.com, broonie@opensource.wolfsonmicro.com Subject: [PATCH 3/4] ASoC: TWL4030: Only update the needed bits in *set_dai_sysclk Date: Mon, 19 Oct 2009 15:42:19 +0300 [thread overview] Message-ID: <1255956140-4829-4-git-send-email-peter.ujfalusi@nokia.com> (raw) In-Reply-To: <1255956140-4829-3-git-send-email-peter.ujfalusi@nokia.com> Do not rewrite the whole register, but only update the needed bits in set_dai_sysclk functions. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@nokia.com> --- sound/soc/codecs/twl4030.c | 22 ++++++++++++---------- 1 files changed, 12 insertions(+), 10 deletions(-) diff --git a/sound/soc/codecs/twl4030.c b/sound/soc/codecs/twl4030.c index 4df7c6c..559e9b2 100644 --- a/sound/soc/codecs/twl4030.c +++ b/sound/soc/codecs/twl4030.c @@ -1785,19 +1785,21 @@ static int twl4030_set_dai_sysclk(struct snd_soc_dai *codec_dai, { struct snd_soc_codec *codec = codec_dai->codec; struct twl4030_priv *twl4030 = codec->private_data; - u8 infreq; + u8 apll_ctrl; + apll_ctrl = twl4030_read_reg_cache(codec, TWL4030_REG_APLL_CTL); + apll_ctrl &= ~TWL4030_APLL_INFREQ; switch (freq) { case 19200000: - infreq = TWL4030_APLL_INFREQ_19200KHZ; + apll_ctrl |= TWL4030_APLL_INFREQ_19200KHZ; twl4030->sysclk = 19200; break; case 26000000: - infreq = TWL4030_APLL_INFREQ_26000KHZ; + apll_ctrl |= TWL4030_APLL_INFREQ_26000KHZ; twl4030->sysclk = 26000; break; case 38400000: - infreq = TWL4030_APLL_INFREQ_38400KHZ; + apll_ctrl |= TWL4030_APLL_INFREQ_38400KHZ; twl4030->sysclk = 38400; break; default: @@ -1806,8 +1808,7 @@ static int twl4030_set_dai_sysclk(struct snd_soc_dai *codec_dai, return -EINVAL; } - infreq |= TWL4030_APLL_EN; - twl4030_write(codec, TWL4030_REG_APLL_CTL, infreq); + twl4030_write(codec, TWL4030_REG_APLL_CTL, apll_ctrl); return 0; } @@ -1989,11 +1990,13 @@ static int twl4030_voice_set_dai_sysclk(struct snd_soc_dai *codec_dai, int clk_id, unsigned int freq, int dir) { struct snd_soc_codec *codec = codec_dai->codec; - u8 infreq; + u8 apll_ctrl; + apll_ctrl = twl4030_read_reg_cache(codec, TWL4030_REG_APLL_CTL); + apll_ctrl &= ~TWL4030_APLL_INFREQ; switch (freq) { case 26000000: - infreq = TWL4030_APLL_INFREQ_26000KHZ; + apll_ctrl |= TWL4030_APLL_INFREQ_26000KHZ; break; default: printk(KERN_ERR "TWL4030 voice set sysclk: unknown rate %d\n", @@ -2001,8 +2004,7 @@ static int twl4030_voice_set_dai_sysclk(struct snd_soc_dai *codec_dai, return -EINVAL; } - infreq |= TWL4030_APLL_EN; - twl4030_write(codec, TWL4030_REG_APLL_CTL, infreq); + twl4030_write(codec, TWL4030_REG_APLL_CTL, apll_ctrl); return 0; } -- 1.6.5.1
WARNING: multiple messages have this Message-ID (diff)
From: Peter Ujfalusi <peter.ujfalusi@nokia.com> To: alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org Cc: tony@atomide.com, broonie@opensource.wolfsonmicro.com, sameo@linux.intel.com Subject: [PATCH 3/4] ASoC: TWL4030: Only update the needed bits in *set_dai_sysclk Date: Mon, 19 Oct 2009 15:42:19 +0300 [thread overview] Message-ID: <1255956140-4829-4-git-send-email-peter.ujfalusi@nokia.com> (raw) In-Reply-To: <1255956140-4829-3-git-send-email-peter.ujfalusi@nokia.com> Do not rewrite the whole register, but only update the needed bits in set_dai_sysclk functions. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@nokia.com> --- sound/soc/codecs/twl4030.c | 22 ++++++++++++---------- 1 files changed, 12 insertions(+), 10 deletions(-) diff --git a/sound/soc/codecs/twl4030.c b/sound/soc/codecs/twl4030.c index 4df7c6c..559e9b2 100644 --- a/sound/soc/codecs/twl4030.c +++ b/sound/soc/codecs/twl4030.c @@ -1785,19 +1785,21 @@ static int twl4030_set_dai_sysclk(struct snd_soc_dai *codec_dai, { struct snd_soc_codec *codec = codec_dai->codec; struct twl4030_priv *twl4030 = codec->private_data; - u8 infreq; + u8 apll_ctrl; + apll_ctrl = twl4030_read_reg_cache(codec, TWL4030_REG_APLL_CTL); + apll_ctrl &= ~TWL4030_APLL_INFREQ; switch (freq) { case 19200000: - infreq = TWL4030_APLL_INFREQ_19200KHZ; + apll_ctrl |= TWL4030_APLL_INFREQ_19200KHZ; twl4030->sysclk = 19200; break; case 26000000: - infreq = TWL4030_APLL_INFREQ_26000KHZ; + apll_ctrl |= TWL4030_APLL_INFREQ_26000KHZ; twl4030->sysclk = 26000; break; case 38400000: - infreq = TWL4030_APLL_INFREQ_38400KHZ; + apll_ctrl |= TWL4030_APLL_INFREQ_38400KHZ; twl4030->sysclk = 38400; break; default: @@ -1806,8 +1808,7 @@ static int twl4030_set_dai_sysclk(struct snd_soc_dai *codec_dai, return -EINVAL; } - infreq |= TWL4030_APLL_EN; - twl4030_write(codec, TWL4030_REG_APLL_CTL, infreq); + twl4030_write(codec, TWL4030_REG_APLL_CTL, apll_ctrl); return 0; } @@ -1989,11 +1990,13 @@ static int twl4030_voice_set_dai_sysclk(struct snd_soc_dai *codec_dai, int clk_id, unsigned int freq, int dir) { struct snd_soc_codec *codec = codec_dai->codec; - u8 infreq; + u8 apll_ctrl; + apll_ctrl = twl4030_read_reg_cache(codec, TWL4030_REG_APLL_CTL); + apll_ctrl &= ~TWL4030_APLL_INFREQ; switch (freq) { case 26000000: - infreq = TWL4030_APLL_INFREQ_26000KHZ; + apll_ctrl |= TWL4030_APLL_INFREQ_26000KHZ; break; default: printk(KERN_ERR "TWL4030 voice set sysclk: unknown rate %d\n", @@ -2001,8 +2004,7 @@ static int twl4030_voice_set_dai_sysclk(struct snd_soc_dai *codec_dai, return -EINVAL; } - infreq |= TWL4030_APLL_EN; - twl4030_write(codec, TWL4030_REG_APLL_CTL, infreq); + twl4030_write(codec, TWL4030_REG_APLL_CTL, apll_ctrl); return 0; } -- 1.6.5.1
next prev parent reply other threads:[~2009-10-19 12:42 UTC|newest] Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top 2009-10-19 12:42 [PATCH 0/4] twl4030 codec as MFD device Peter Ujfalusi 2009-10-19 12:42 ` [PATCH 1/4] MFD: twl4030: add twl4030_codec MFD as a new child to the core Peter Ujfalusi 2009-10-19 12:42 ` Peter Ujfalusi 2009-10-19 12:42 ` [PATCH 2/4] OMAP: Platform support for twl4030_codec MFD Peter Ujfalusi 2009-10-19 12:42 ` Peter Ujfalusi 2009-10-19 12:42 ` Peter Ujfalusi [this message] 2009-10-19 12:42 ` [PATCH 3/4] ASoC: TWL4030: Only update the needed bits in *set_dai_sysclk Peter Ujfalusi 2009-10-19 12:42 ` [PATCH 4/4] ASoC: TWL4030: Driver registration via twl4030_codec MFD Peter Ujfalusi 2009-10-19 12:42 ` Peter Ujfalusi 2009-10-20 10:25 ` Mark Brown 2009-10-20 11:30 ` Peter Ujfalusi 2009-10-20 11:30 ` Peter Ujfalusi 2009-10-20 11:51 ` Mark Brown 2009-10-20 11:51 ` Mark Brown 2009-10-20 12:01 ` Peter Ujfalusi 2009-10-20 12:01 ` Peter Ujfalusi 2009-10-19 12:55 ` [PATCH 3/4] ASoC: TWL4030: Only update the needed bits in *set_dai_sysclk Mark Brown 2009-10-19 12:59 ` Peter Ujfalusi 2009-10-19 12:59 ` Peter Ujfalusi 2009-10-20 19:01 ` [PATCH 2/4] OMAP: Platform support for twl4030_codec MFD Tony Lindgren 2009-10-20 19:01 ` Tony Lindgren 2009-10-20 10:03 ` [PATCH 1/4] MFD: twl4030: add twl4030_codec MFD as a new child to the core Mark Brown 2009-10-20 10:03 ` Mark Brown 2009-10-20 11:16 ` [alsa-devel] " Peter Ujfalusi 2009-10-20 11:16 ` Peter Ujfalusi 2009-10-21 23:13 ` Samuel Ortiz 2009-10-22 6:04 ` Peter Ujfalusi 2009-10-22 6:04 ` Peter Ujfalusi 2009-10-22 7:57 ` Samuel Ortiz 2009-10-22 7:57 ` Samuel Ortiz 2009-10-22 10:55 ` Mark Brown 2009-10-22 10:55 ` Mark Brown 2009-10-22 11:02 ` Peter Ujfalusi 2009-10-22 11:02 ` Peter Ujfalusi 2009-10-21 8:56 ` [PATCH 0/4] twl4030 codec as MFD device Peter Ujfalusi 2009-10-21 8:56 ` Peter Ujfalusi
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=1255956140-4829-4-git-send-email-peter.ujfalusi@nokia.com \ --to=peter.ujfalusi@nokia.com \ --cc=alsa-devel@alsa-project.org \ --cc=broonie@opensource.wolfsonmicro.com \ --cc=linux-kernel@vger.kernel.org \ --cc=linux-omap@vger.kernel.org \ --cc=sameo@linux.intel.com \ --cc=tony@atomide.com \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.