| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <d85c8529-9970-c79c-9430-ed80c47eaf36@nvidia.com>
Date: Tue, 7 Jan 2020 08:56:03 -0800
From: Sowjanya Komatineni <skomatineni@...dia.com>
To: Sameer Pujar <spujar@...dia.com>, <thierry.reding@...il.com>,
<jonathanh@...dia.com>, <broonie@...nel.org>,
<lgirdwood@...il.com>, <perex@...ex.cz>, <tiwai@...e.com>,
<digetx@...il.com>, <mperttunen@...dia.com>,
<gregkh@...uxfoundation.org>, <sboyd@...nel.org>,
<robh+dt@...nel.org>, <mark.rutland@....com>
CC: <pdeschrijver@...dia.com>, <pgaikwad@...dia.com>,
<josephl@...dia.com>, <daniel.lezcano@...aro.org>,
<mmaddireddy@...dia.com>, <markz@...dia.com>,
<devicetree@...r.kernel.org>, <linux-clk@...r.kernel.org>,
<linux-tegra@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v6 12/19] ASoC: tegra: Add audio mclk configuration
On 1/7/20 3:14 AM, Sameer Pujar wrote:
>
> On 1/7/2020 9:44 AM, Sowjanya Komatineni wrote:
>> Tegra PMC clock clk_out_1 is dedicated for audio mclk from Tegra30
>> through Tegra210 and currently Tegra clock driver does the initial
>> parent
>> configuration for audio mclk and keeps it enabled by default.
>>
>> With the move of PMC clocks from clock driver into pmc driver,
>> audio clocks parent configuration can be specified through the device
>> tree
>> using assigned-clock-parents property and audio mclk control should be
>> taken care by the audio driver.
>>
>> This patch has implementation for parent configuration when default
>> parent
>> configuration is not specified in the device tree and controls audio
>> mclk
>> enable and disable during machine startup and shutdown.
>>
>> Signed-off-by: Sowjanya Komatineni <skomatineni@...dia.com>
>
> Minor comments, otherwise LGTM.
>
Thanks Sameer. Will fix.
>> ---
>> sound/soc/tegra/tegra_alc5632.c | 21 ++++++++++
>> sound/soc/tegra/tegra_asoc_utils.c | 84
>> ++++++++++++++++++++++++--------------
>> sound/soc/tegra/tegra_asoc_utils.h | 2 +
>> sound/soc/tegra/tegra_max98090.c | 21 ++++++++++
>> sound/soc/tegra/tegra_rt5640.c | 21 ++++++++++
>> sound/soc/tegra/tegra_rt5677.c | 21 ++++++++++
>> sound/soc/tegra/tegra_sgtl5000.c | 21 ++++++++++
>> sound/soc/tegra/tegra_wm8753.c | 21 ++++++++++
>> sound/soc/tegra/tegra_wm8903.c | 21 ++++++++++
>> sound/soc/tegra/trimslice.c | 21 ++++++++++
>> 10 files changed, 224 insertions(+), 30 deletions(-)
>>
>> diff --git a/sound/soc/tegra/tegra_alc5632.c
>> b/sound/soc/tegra/tegra_alc5632.c
>> index 50a6d2ff4442..0fd10023f7a6 100644
>> --- a/sound/soc/tegra/tegra_alc5632.c
>> +++ b/sound/soc/tegra/tegra_alc5632.c
>> @@ -62,8 +62,29 @@ static int tegra_alc5632_asoc_hw_params(struct
>> snd_pcm_substream *substream,
>> return 0;
>> }
>> +static int tegra_alc5632_asoc_startup(struct snd_pcm_substream
>> *substream)
>> +{
>> + struct snd_soc_pcm_runtime *rtd = substream->private_data;
>> + struct tegra_alc5632 *machine =
>> snd_soc_card_get_drvdata(rtd->card);
>> + int ret;
>> +
>> + ret = tegra_asoc_utils_clk_enable(&machine->util_data);
>> +
>> + return ret;
>> +}
>> +
>> +static void tegra_alc5632_asoc_shutdown(struct snd_pcm_substream
>> *substream)
>> +{
>> + struct snd_soc_pcm_runtime *rtd = substream->private_data;
>> + struct tegra_alc5632 *machine =
>> snd_soc_card_get_drvdata(rtd->card);
>> +
>> + tegra_asoc_utils_clk_disable(&machine->util_data);
>> +}
>> +
>> static const struct snd_soc_ops tegra_alc5632_asoc_ops = {
>> + .startup = tegra_alc5632_asoc_startup,
>> .hw_params = tegra_alc5632_asoc_hw_params,
>> + .shutdown = tegra_alc5632_asoc_shutdown,
>> };
>> static struct snd_soc_jack tegra_alc5632_hs_jack;
>> diff --git a/sound/soc/tegra/tegra_asoc_utils.c
>> b/sound/soc/tegra/tegra_asoc_utils.c
>> index 0d2271952555..2886ae9f5a16 100644
>> --- a/sound/soc/tegra/tegra_asoc_utils.c
>> +++ b/sound/soc/tegra/tegra_asoc_utils.c
>> @@ -60,8 +60,6 @@ int tegra_asoc_utils_set_rate(struct
>> tegra_asoc_utils_data *data, int srate,
>> data->set_mclk = 0;
>> clk_disable_unprepare(data->clk_cdev1);
>> - clk_disable_unprepare(data->clk_pll_a_out0);
>> - clk_disable_unprepare(data->clk_pll_a);
>> err = clk_set_rate(data->clk_pll_a, new_baseclock);
>> if (err) {
>> @@ -77,18 +75,6 @@ int tegra_asoc_utils_set_rate(struct
>> tegra_asoc_utils_data *data, int srate,
>> /* Don't set cdev1/extern1 rate; it's locked to pll_a_out0 */
>> - err = clk_prepare_enable(data->clk_pll_a);
>> - if (err) {
>> - dev_err(data->dev, "Can't enable pll_a: %d\n", err);
>> - return err;
>> - }
>> -
>> - err = clk_prepare_enable(data->clk_pll_a_out0);
>> - if (err) {
>> - dev_err(data->dev, "Can't enable pll_a_out0: %d\n", err);
>> - return err;
>> - }
>> -
>> err = clk_prepare_enable(data->clk_cdev1);
>> if (err) {
>> dev_err(data->dev, "Can't enable cdev1: %d\n", err);
>> @@ -109,8 +95,6 @@ int tegra_asoc_utils_set_ac97_rate(struct
>> tegra_asoc_utils_data *data)
>> int err;
>> clk_disable_unprepare(data->clk_cdev1);
>> - clk_disable_unprepare(data->clk_pll_a_out0);
>> - clk_disable_unprepare(data->clk_pll_a);
>> /*
>> * AC97 rate is fixed at 24.576MHz and is used for both the host
>> @@ -130,17 +114,27 @@ int tegra_asoc_utils_set_ac97_rate(struct
>> tegra_asoc_utils_data *data)
>> /* Don't set cdev1/extern1 rate; it's locked to pll_a_out0 */
>> - err = clk_prepare_enable(data->clk_pll_a);
>> + err = clk_prepare_enable(data->clk_cdev1);
>> if (err) {
>> - dev_err(data->dev, "Can't enable pll_a: %d\n", err);
>> + dev_err(data->dev, "Can't enable cdev1: %d\n", err);
>> return err;
>> }
>> - err = clk_prepare_enable(data->clk_pll_a_out0);
>> - if (err) {
>> - dev_err(data->dev, "Can't enable pll_a_out0: %d\n", err);
>> - return err;
>> - }
>> + data->set_baseclock = pll_rate;
>> + data->set_mclk = ac97_rate;
>> +
>> + return 0;
>> +}
>> +EXPORT_SYMBOL_GPL(tegra_asoc_utils_set_ac97_rate);
>> +
>> +void tegra_asoc_utils_clk_disable(struct tegra_asoc_utils_data *data)
>> +{
>> + clk_disable_unprepare(data->clk_cdev1);
>> +}
>> +
>> +int tegra_asoc_utils_clk_enable(struct tegra_asoc_utils_data *data)
>> +{
>> + int err;
>> err = clk_prepare_enable(data->clk_cdev1);
>> if (err) {
>> @@ -148,16 +142,13 @@ int tegra_asoc_utils_set_ac97_rate(struct
>> tegra_asoc_utils_data *data)
>> return err;
>> }
>> - data->set_baseclock = pll_rate;
>> - data->set_mclk = ac97_rate;
>> -
>> return 0;
>> }
>> -EXPORT_SYMBOL_GPL(tegra_asoc_utils_set_ac97_rate);
>> int tegra_asoc_utils_init(struct tegra_asoc_utils_data *data,
>> struct device *dev)
>> {
>> + struct clk *clk_out_1, *clk_extern1;
>> int ret;
>> data->dev = dev;
>> @@ -193,9 +184,42 @@ int tegra_asoc_utils_init(struct
>> tegra_asoc_utils_data *data,
>> return PTR_ERR(data->clk_cdev1);
>> }
>> - ret = tegra_asoc_utils_set_rate(data, 44100, 256 * 44100);
>> - if (ret)
>> - return ret;
>> + /*
>> + * If clock parents are not set in DT, configure here to use
>> clk_out_1
>> + * as mclk and extern1 as parent for Tegra30 and higher.
>> + */
>> + if (!of_find_property(dev->of_node, "assigned-clock-parents",
>> NULL) &&
>> + data->soc > TEGRA_ASOC_UTILS_SOC_TEGRA20) {
>> + dev_err(data->dev,
>
> As this is a fallback mechanism, use dev_info or dev_dbg instead?
>
>> + "Configuring clocks for a legacy device-tree\n");
>> + clk_extern1 = devm_clk_get(dev, "extern1");
>> + if (IS_ERR(clk_extern1)) {
>> + dev_err(data->dev, "Can't retrieve clk extern1\n");
>> + return PTR_ERR(clk_extern1);
>> + }
>> +
>> + ret = clk_set_parent(clk_extern1, data->clk_pll_a_out0);
>> + if (ret < 0) {
>> + dev_err(data->dev,
>> + "Set parent failed for clk extern1\n");
>> + return ret;
>> + }
>> +
>> + clk_out_1 = devm_clk_get(dev, "clk_out_1");
>> + if (IS_ERR(clk_out_1)) {
>> + dev_err(data->dev, "Can't retrieve clk clk_out_1\n");
>> + return PTR_ERR(clk_out_1);
>> + }
>> +
>> + ret = clk_set_parent(clk_out_1, clk_extern1);
>> + if (ret < 0) {
>> + dev_err(data->dev,
>> + "Set parent failed for clk_out_1\n");
>> + return ret;
>> + }
>> +
>> + data->clk_cdev1 = clk_out_1;
>> + }
>> return 0;
>> }
>> diff --git a/sound/soc/tegra/tegra_asoc_utils.h
>> b/sound/soc/tegra/tegra_asoc_utils.h
>> index a34439587d59..6db93009a317 100644
>> --- a/sound/soc/tegra/tegra_asoc_utils.h
>> +++ b/sound/soc/tegra/tegra_asoc_utils.h
>> @@ -34,5 +34,7 @@ int tegra_asoc_utils_set_rate(struct
>> tegra_asoc_utils_data *data, int srate,
>> int tegra_asoc_utils_set_ac97_rate(struct tegra_asoc_utils_data
>> *data);
>> int tegra_asoc_utils_init(struct tegra_asoc_utils_data *data,
>> struct device *dev);
>> +int tegra_asoc_utils_clk_enable(struct tegra_asoc_utils_data *data);
>> +void tegra_asoc_utils_clk_disable(struct tegra_asoc_utils_data *data);
>> #endif
>> diff --git a/sound/soc/tegra/tegra_max98090.c
>> b/sound/soc/tegra/tegra_max98090.c
>> index f554a3d4571f..98d1ff49074b 100644
>> --- a/sound/soc/tegra/tegra_max98090.c
>> +++ b/sound/soc/tegra/tegra_max98090.c
>> @@ -82,8 +82,29 @@ static int tegra_max98090_asoc_hw_params(struct
>> snd_pcm_substream *substream,
>> return 0;
>> }
>> +static int tegra_max98090_asoc_startup(struct snd_pcm_substream
>> *substream)
>> +{
>> + struct snd_soc_pcm_runtime *rtd = substream->private_data;
>> + struct tegra_max98090 *machine =
>> snd_soc_card_get_drvdata(rtd->card);
>> + int ret;
>> +
>> + ret = tegra_asoc_utils_clk_enable(&machine->util_data);
>
> "ret" can be removed.
> instead "return tegra_asoc_utils_clk_enable(&machine->util_data)"
>
>> +
>> + return ret;
>> +}
>> +
>> +static void tegra_max98090_asoc_shutdown(struct snd_pcm_substream
>> *substream)
>> +{
>> + struct snd_soc_pcm_runtime *rtd = substream->private_data;
>> + struct tegra_max98090 *machine =
>> snd_soc_card_get_drvdata(rtd->card);
>> +
>> + tegra_asoc_utils_clk_disable(&machine->util_data);
>> +}
>> +
>> static const struct snd_soc_ops tegra_max98090_ops = {
>> + .startup = tegra_max98090_asoc_startup,
>> .hw_params = tegra_max98090_asoc_hw_params,
>> + .shutdown = tegra_max98090_asoc_shutdown,
>> };
>> static struct snd_soc_jack tegra_max98090_hp_jack;
>> diff --git a/sound/soc/tegra/tegra_rt5640.c
>> b/sound/soc/tegra/tegra_rt5640.c
>> index 5c695dfea009..8705b1a32a14 100644
>> --- a/sound/soc/tegra/tegra_rt5640.c
>> +++ b/sound/soc/tegra/tegra_rt5640.c
>> @@ -65,8 +65,29 @@ static int tegra_rt5640_asoc_hw_params(struct
>> snd_pcm_substream *substream,
>> return 0;
>> }
>> +static int tegra_rt5640_asoc_startup(struct snd_pcm_substream
>> *substream)
>> +{
>> + struct snd_soc_pcm_runtime *rtd = substream->private_data;
>> + struct tegra_rt5640 *machine = snd_soc_card_get_drvdata(rtd->card);
>> + int ret;
>> +
>> + ret = tegra_asoc_utils_clk_enable(&machine->util_data);
>> +
>> + return ret;
>> +}
>> +
>> +static void tegra_rt5640_asoc_shutdown(struct snd_pcm_substream
>> *substream)
>> +{
>> + struct snd_soc_pcm_runtime *rtd = substream->private_data;
>> + struct tegra_rt5640 *machine = snd_soc_card_get_drvdata(rtd->card);
>> +
>> + tegra_asoc_utils_clk_disable(&machine->util_data);
>> +}
>> +
>> static const struct snd_soc_ops tegra_rt5640_ops = {
>> + .startup = tegra_rt5640_asoc_startup,
>> .hw_params = tegra_rt5640_asoc_hw_params,
>> + .shutdown = tegra_rt5640_asoc_shutdown,
>> };
>> static struct snd_soc_jack tegra_rt5640_hp_jack;
>> diff --git a/sound/soc/tegra/tegra_rt5677.c
>> b/sound/soc/tegra/tegra_rt5677.c
>> index fb86f76728b3..a44b5ddc33ee 100644
>> --- a/sound/soc/tegra/tegra_rt5677.c
>> +++ b/sound/soc/tegra/tegra_rt5677.c
>> @@ -82,8 +82,29 @@ static int tegra_rt5677_event_hp(struct
>> snd_soc_dapm_widget *w,
>> return 0;
>> }
>> +static int tegra_rt5677_asoc_startup(struct snd_pcm_substream
>> *substream)
>> +{
>> + struct snd_soc_pcm_runtime *rtd = substream->private_data;
>> + struct tegra_rt5677 *machine = snd_soc_card_get_drvdata(rtd->card);
>> + int ret;
>> +
>> + ret = tegra_asoc_utils_clk_enable(&machine->util_data);
>> +
>> + return ret;
>> +}
>> +
>> +static void tegra_rt5677_asoc_shutdown(struct snd_pcm_substream
>> *substream)
>> +{
>> + struct snd_soc_pcm_runtime *rtd = substream->private_data;
>> + struct tegra_rt5677 *machine = snd_soc_card_get_drvdata(rtd->card);
>> +
>> + tegra_asoc_utils_clk_disable(&machine->util_data);
>> +}
>> +
>> static const struct snd_soc_ops tegra_rt5677_ops = {
>> + .startup = tegra_rt5677_asoc_startup,
>> .hw_params = tegra_rt5677_asoc_hw_params,
>> + .shutdown = tegra_rt5677_asoc_shutdown,
>> };
>> static struct snd_soc_jack tegra_rt5677_hp_jack;
>> diff --git a/sound/soc/tegra/tegra_sgtl5000.c
>> b/sound/soc/tegra/tegra_sgtl5000.c
>> index 586f56f435f4..f3317dd4a79f 100644
>> --- a/sound/soc/tegra/tegra_sgtl5000.c
>> +++ b/sound/soc/tegra/tegra_sgtl5000.c
>> @@ -71,8 +71,29 @@ static int tegra_sgtl5000_hw_params(struct
>> snd_pcm_substream *substream,
>> return 0;
>> }
>> +static int tegra_sgtl5000_startup(struct snd_pcm_substream
>> *substream)
>> +{
>> + struct snd_soc_pcm_runtime *rtd = substream->private_data;
>> + struct tegra_sgtl5000 *machine =
>> snd_soc_card_get_drvdata(rtd->card);
>> + int ret;
>> +
>> + ret = tegra_asoc_utils_clk_enable(&machine->util_data);
>> +
>> + return ret;
>> +}
>> +
>> +static void tegra_sgtl5000_shutdown(struct snd_pcm_substream
>> *substream)
>> +{
>> + struct snd_soc_pcm_runtime *rtd = substream->private_data;
>> + struct tegra_sgtl5000 *machine =
>> snd_soc_card_get_drvdata(rtd->card);
>> +
>> + tegra_asoc_utils_clk_disable(&machine->util_data);
>> +}
>> +
>> static const struct snd_soc_ops tegra_sgtl5000_ops = {
>> + .startup = tegra_sgtl5000_startup,
>> .hw_params = tegra_sgtl5000_hw_params,
>> + .shutdown = tegra_sgtl5000_shutdown,
>> };
>> static const struct snd_soc_dapm_widget
>> tegra_sgtl5000_dapm_widgets[] = {
>> diff --git a/sound/soc/tegra/tegra_wm8753.c
>> b/sound/soc/tegra/tegra_wm8753.c
>> index f76cfdc963ed..f4a000ec7506 100644
>> --- a/sound/soc/tegra/tegra_wm8753.c
>> +++ b/sound/soc/tegra/tegra_wm8753.c
>> @@ -75,8 +75,29 @@ static int tegra_wm8753_hw_params(struct
>> snd_pcm_substream *substream,
>> return 0;
>> }
>> +static int tegra_wm8753_startup(struct snd_pcm_substream *substream)
>> +{
>> + struct snd_soc_pcm_runtime *rtd = substream->private_data;
>> + struct tegra_wm8753 *machine = snd_soc_card_get_drvdata(rtd->card);
>> + int ret;
>> +
>> + ret = tegra_asoc_utils_clk_enable(&machine->util_data);
>> +
>> + return ret;
>> +}
>> +
>> +static void tegra_wm8753_shutdown(struct snd_pcm_substream *substream)
>> +{
>> + struct snd_soc_pcm_runtime *rtd = substream->private_data;
>> + struct tegra_wm8753 *machine = snd_soc_card_get_drvdata(rtd->card);
>> +
>> + tegra_asoc_utils_clk_disable(&machine->util_data);
>> +}
>> +
>> static const struct snd_soc_ops tegra_wm8753_ops = {
>> + .startup = tegra_wm8753_startup,
>> .hw_params = tegra_wm8753_hw_params,
>> + .shutdown = tegra_wm8753_shutdown,
>> };
>> static const struct snd_soc_dapm_widget
>> tegra_wm8753_dapm_widgets[] = {
>> diff --git a/sound/soc/tegra/tegra_wm8903.c
>> b/sound/soc/tegra/tegra_wm8903.c
>> index f5f78c3512cd..7b5cd1653821 100644
>> --- a/sound/soc/tegra/tegra_wm8903.c
>> +++ b/sound/soc/tegra/tegra_wm8903.c
>> @@ -82,8 +82,29 @@ static int tegra_wm8903_hw_params(struct
>> snd_pcm_substream *substream,
>> return 0;
>> }
>> +static int tegra_wm8903_startup(struct snd_pcm_substream *substream)
>> +{
>> + struct snd_soc_pcm_runtime *rtd = substream->private_data;
>> + struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(rtd->card);
>> + int ret;
>> +
>> + ret = tegra_asoc_utils_clk_enable(&machine->util_data);
>> +
>> + return ret;
>> +}
>> +
>> +static void tegra_wm8903_shutdown(struct snd_pcm_substream *substream)
>> +{
>> + struct snd_soc_pcm_runtime *rtd = substream->private_data;
>> + struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(rtd->card);
>> +
>> + tegra_asoc_utils_clk_disable(&machine->util_data);
>> +}
>> +
>> static const struct snd_soc_ops tegra_wm8903_ops = {
>> + .startup = tegra_wm8903_startup,
>> .hw_params = tegra_wm8903_hw_params,
>> + .shutdown = tegra_wm8903_shutdown,
>> };
>> static struct snd_soc_jack tegra_wm8903_hp_jack;
>> diff --git a/sound/soc/tegra/trimslice.c b/sound/soc/tegra/trimslice.c
>> index e51c67092c8f..4b703734904f 100644
>> --- a/sound/soc/tegra/trimslice.c
>> +++ b/sound/soc/tegra/trimslice.c
>> @@ -60,8 +60,29 @@ static int trimslice_asoc_hw_params(struct
>> snd_pcm_substream *substream,
>> return 0;
>> }
>> +static int trimslice_asoc_startup(struct snd_pcm_substream
>> *substream)
>> +{
>> + struct snd_soc_pcm_runtime *rtd = substream->private_data;
>> + struct tegra_trimslice *machine =
>> snd_soc_card_get_drvdata(rtd->card);
>> + int ret;
>> +
>> + ret = tegra_asoc_utils_clk_enable(&machine->util_data);
>> +
>> + return ret;
>> +}
>> +
>> +static void trimslice_asoc_shutdown(struct snd_pcm_substream
>> *substream)
>> +{
>> + struct snd_soc_pcm_runtime *rtd = substream->private_data;
>> + struct tegra_trimslice *machine =
>> snd_soc_card_get_drvdata(rtd->card);
>> +
>> + tegra_asoc_utils_clk_disable(&machine->util_data);
>> +}
>> +
>> static const struct snd_soc_ops trimslice_asoc_ops = {
>> + .startup = trimslice_asoc_startup,
>> .hw_params = trimslice_asoc_hw_params,
>> + .shutdown = trimslice_asoc_shutdown,
>> };
>> static const struct snd_soc_dapm_widget trimslice_dapm_widgets[] = {
Powered by blists - more mailing lists