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From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
To: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>,
	broonie@kernel.org, robh+dt@kernel.org, vkoul@kernel.org
Cc: devicetree@vger.kernel.org, alsa-devel@alsa-project.org,
	bgoswami@codeaurora.org, spapothi@codeaurora.org,
	lgirdwood@gmail.com, linux-kernel@vger.kernel.org
Subject: Re: [alsa-devel] [PATCH v5 4/4] ASoC: codecs: add wsa881x amplifier support
Date: Thu, 29 Aug 2019 11:36:52 -0500	[thread overview]
Message-ID: <33e04646-ac7e-3ba1-3e09-a4f27a1b250b@linux.intel.com> (raw)
In-Reply-To: <20190829144442.6210-5-srinivas.kandagatla@linaro.org>


> +static int wsa881x_ramp_pa_gain(struct snd_soc_component *comp,
> +				int min_gain, int max_gain, int udelay)
> +{
> +	int val;
> +
> +	for (val = min_gain; max_gain <= val; val--) {
> +		snd_soc_component_update_bits(comp, WSA881X_SPKR_DRV_GAIN,
> +					      0xF0, val << 4);
> +		/*
> +		 * 1ms delay is needed for every step change in gain as per
> +		 * HW requirement.
> +		 */
> +		usleep_range(udelay, udelay + 10);

nit-pick: it'd be nicer to have udelay explicitly set here instead of in 
the caller below for consistency with the comments.

> +			wsa881x_ramp_pa_gain(comp, min_gain, max_gain, 1000);

But apart from that I didn't see anything blatantly wrong, so

Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>

      reply	other threads:[~2019-08-29 17:54 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-29 14:44 [PATCH v5 0/4] ASoC: codecs: Add WSA881x Smart Speaker " Srinivas Kandagatla
2019-08-29 14:44 ` [PATCH v5 1/4] dt-bindings: soundwire: add slave bindings Srinivas Kandagatla
2019-08-29 15:42   ` Rob Herring
2019-08-29 15:47     ` Srinivas Kandagatla
2019-08-29 14:44 ` [PATCH v5 2/4] soundwire: core: add device tree support for slave devices Srinivas Kandagatla
2019-08-29 14:44 ` [PATCH v5 3/4] dt-bindings: ASoC: Add WSA881x bindings Srinivas Kandagatla
2019-08-29 15:46   ` Rob Herring
2019-08-29 15:52     ` Srinivas Kandagatla
2019-08-29 19:30       ` Rob Herring
2019-08-29 14:44 ` [PATCH v5 4/4] ASoC: codecs: add wsa881x amplifier support Srinivas Kandagatla
2019-08-29 16:36   ` Pierre-Louis Bossart [this message]

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