From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2E7E61ED38 for ; Tue, 25 Jul 2023 11:09:07 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A4DA8C433C9; Tue, 25 Jul 2023 11:09:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1690283347; bh=QYPK/LnAcnd+CDVqDbIugbUXRwpAD27Ly3tuQbVcCeg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=aFnDCWY6Vvi6dgGDuxalXjXjKU9goLZlcx2Bqb9Ya2oUyx6sX3UcwbCrBtS5EtDsQ 0MBVF1Y2BlLTlX4UFv7OLQinJ+0N3ntg6me3z4WOoBduCj0nJTGqHthvLmr0K3Q1Sd B8sO4vi6UjvQ8phOurttVG0dS3wVafXjI9e85BXA= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Srinivas Kandagatla , Steev Klimaszewski , Johan Hovold , Mark Brown Subject: [PATCH 5.15 26/78] ASoC: codecs: wcd938x: fix codec initialisation race Date: Tue, 25 Jul 2023 12:46:17 +0200 Message-ID: <20230725104452.332043333@linuxfoundation.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230725104451.275227789@linuxfoundation.org> References: <20230725104451.275227789@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Johan Hovold commit 85a61b1ce461a3f62f1019e5e6423c393c542bff upstream. Make sure to resume the codec and soundwire device before trying to read the codec variant and configure the device during component probe. This specifically avoids interpreting (a masked and shifted) -EBUSY errno as the variant: wcd938x_codec audio-codec: ASoC: error at soc_component_read_no_lock on audio-codec for register: [0x000034b0] -16 when the soundwire device happens to be suspended, which in turn prevents some headphone controls from being registered. Fixes: 8d78602aa87a ("ASoC: codecs: wcd938x: add basic driver") Cc: stable@vger.kernel.org # 5.14 Cc: Srinivas Kandagatla Reported-by: Steev Klimaszewski Signed-off-by: Johan Hovold Link: https://lore.kernel.org/r/20230630120318.6571-1-johan+linaro@kernel.org Signed-off-by: Mark Brown Signed-off-by: Greg Kroah-Hartman --- sound/soc/codecs/wcd938x.c | 6 ++++++ 1 file changed, 6 insertions(+) --- a/sound/soc/codecs/wcd938x.c +++ b/sound/soc/codecs/wcd938x.c @@ -4091,6 +4091,10 @@ static int wcd938x_soc_codec_probe(struc snd_soc_component_init_regmap(component, wcd938x->regmap); + ret = pm_runtime_resume_and_get(dev); + if (ret < 0) + return ret; + wcd938x->variant = snd_soc_component_read_field(component, WCD938X_DIGITAL_EFUSE_REG_0, WCD938X_ID_MASK); @@ -4108,6 +4112,8 @@ static int wcd938x_soc_codec_probe(struc (WCD938X_DIGITAL_INTR_LEVEL_0 + i), 0); } + pm_runtime_put(dev); + wcd938x->hphr_pdm_wd_int = regmap_irq_get_virq(wcd938x->irq_chip, WCD938X_IRQ_HPHR_PDM_WD_INT); wcd938x->hphl_pdm_wd_int = regmap_irq_get_virq(wcd938x->irq_chip,