From patchwork Fri Nov 25 14:20:26 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Charles Keepax X-Patchwork-Id: 628577 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id BD669C4332F for ; Fri, 25 Nov 2022 14:22:28 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id E3EFC173C; Fri, 25 Nov 2022 15:21:36 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz E3EFC173C DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1669386147; bh=RMCz5oPSxtzYRm1iYgdJSYHjJHyDymVlDKQdQujZ6BU=; h=From:To:Subject:Date:In-Reply-To:References:Cc:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=aIGGewgWpkNBw+UdsQjEfJuoJ4xubIgMidAbvMgSIxEsuVa7V7C4DDWpF6emxMTz4 K26Yae9187STZISq4EYCNIkD9WHDJYy3JBe+gaWK6xE/ZUq5Dx7AFQw3gOLPE3lMwX v+PD2gscz1d+WB9gck/cYR5B3t+g1UlAo7rHXlcY= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 636E8F8055A; Fri, 25 Nov 2022 15:20:50 +0100 (CET) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 414E1F80558; Fri, 25 Nov 2022 15:20:46 +0100 (CET) Received: from mx0b-001ae601.pphosted.com (mx0b-001ae601.pphosted.com [67.231.152.168]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 4B4E7F80236 for ; Fri, 25 Nov 2022 15:20:32 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 4B4E7F80236 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key) header.d=cirrus.com header.i=@cirrus.com header.b="JNbcaxIq" Received: from pps.filterd (m0077474.ppops.net [127.0.0.1]) by mx0b-001ae601.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 2AP8g14d009072; Fri, 25 Nov 2022 08:20:31 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cirrus.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding : content-type; s=PODMain02222019; bh=Hf+p2XLDxtDu0bixw/WcTYV02K3jKz11jQ4Wh7jZWhs=; b=JNbcaxIq890baQYfRP7F1/m0qJBfIKzCHx/iWaXRDWaEJ3gEKV6fmFydkme2QwFY4abH FW16PxoQGsQvUurmsm+2KoVD5L7DhiY1VJWYGcAdeCU/2G5UjeI7EwFIazH4CdpNlbab AzvNxf1ycQjR6nrQhdTMSbtQgnwCHAOeEz0SsjJCvWSZxDYCtZG8YkyaLDW37HdqaLdV uGLYfuPojsKQAOpOAi1pOKrNzWdaKB63KSWQa2AR+URNqNzmvRhTTsqPXskKHkjDr7ZA WUgTc89qYhsP6Sc7d24fLqrGup5nQZTR9mizO/0uixx2WwraqcP4ejeEU2KcaAqHlDe3 DQ== Received: from ediex02.ad.cirrus.com ([84.19.233.68]) by mx0b-001ae601.pphosted.com (PPS) with ESMTPS id 3kxvet7ccp-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 25 Nov 2022 08:20:30 -0600 Received: from ediex01.ad.cirrus.com (198.61.84.80) by ediex02.ad.cirrus.com (198.61.84.81) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.20; Fri, 25 Nov 2022 08:20:29 -0600 Received: from ediswmail.ad.cirrus.com (198.61.86.93) by ediex01.ad.cirrus.com (198.61.84.80) with Microsoft SMTP Server id 15.2.1118.20 via Frontend Transport; Fri, 25 Nov 2022 08:20:29 -0600 Received: from algalon.ad.cirrus.com (algalon.ad.cirrus.com [198.90.251.122]) by ediswmail.ad.cirrus.com (Postfix) with ESMTP id 1F523B10; Fri, 25 Nov 2022 14:20:29 +0000 (UTC) From: Charles Keepax To: Subject: [PATCH v4 2/4] soundwire: Provide build stubs for common functions Date: Fri, 25 Nov 2022 14:20:26 +0000 Message-ID: <20221125142028.1118618-3-ckeepax@opensource.cirrus.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20221125142028.1118618-1-ckeepax@opensource.cirrus.com> References: <20221125142028.1118618-1-ckeepax@opensource.cirrus.com> MIME-Version: 1.0 X-Proofpoint-ORIG-GUID: -RykCZ5n6tuVbhrgytsuMh0k7okAmOu6 X-Proofpoint-GUID: -RykCZ5n6tuVbhrgytsuMh0k7okAmOu6 X-Proofpoint-Spam-Reason: safe Cc: alsa-devel@alsa-project.org, patches@opensource.cirrus.com, pierre-louis.bossart@linux.intel.com, linux-kernel@vger.kernel.org, sanyog.r.kale@intel.com, yung-chuan.liao@linux.intel.com X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" Provide stub functions when CONFIG_SOUNDWIRE is not set for functions that are quite likely to be used from common code on devices supporting multiple control buses. Reviewed-by: Pierre-Louis Bossart Signed-off-by: Charles Keepax --- Changes since v3: - Return error code and add WARN_ONCE in build stubs. Note I returned EINVAL rather than the discussed ENOSYS since it turns out checkpatch informs me I really shouldn't be returning ENOSYS :-) Thanks, Charles include/linux/soundwire/sdw.h | 105 ++++++++++++++++++++++++++++++---- 1 file changed, 95 insertions(+), 10 deletions(-) diff --git a/include/linux/soundwire/sdw.h b/include/linux/soundwire/sdw.h index 902ed46f76c80..132a0ee97b804 100644 --- a/include/linux/soundwire/sdw.h +++ b/include/linux/soundwire/sdw.h @@ -4,6 +4,7 @@ #ifndef __SOUNDWIRE_H #define __SOUNDWIRE_H +#include #include #include @@ -1021,15 +1022,8 @@ int sdw_stream_add_master(struct sdw_bus *bus, struct sdw_port_config *port_config, unsigned int num_ports, struct sdw_stream_runtime *stream); -int sdw_stream_add_slave(struct sdw_slave *slave, - struct sdw_stream_config *stream_config, - struct sdw_port_config *port_config, - unsigned int num_ports, - struct sdw_stream_runtime *stream); int sdw_stream_remove_master(struct sdw_bus *bus, struct sdw_stream_runtime *stream); -int sdw_stream_remove_slave(struct sdw_slave *slave, - struct sdw_stream_runtime *stream); int sdw_startup_stream(void *sdw_substream); int sdw_prepare_stream(struct sdw_stream_runtime *stream); int sdw_enable_stream(struct sdw_stream_runtime *stream); @@ -1040,8 +1034,20 @@ int sdw_bus_prep_clk_stop(struct sdw_bus *bus); int sdw_bus_clk_stop(struct sdw_bus *bus); int sdw_bus_exit_clk_stop(struct sdw_bus *bus); -/* messaging and data APIs */ +int sdw_compare_devid(struct sdw_slave *slave, struct sdw_slave_id id); +void sdw_extract_slave_id(struct sdw_bus *bus, u64 addr, struct sdw_slave_id *id); +#if IS_ENABLED(CONFIG_SOUNDWIRE) + +int sdw_stream_add_slave(struct sdw_slave *slave, + struct sdw_stream_config *stream_config, + struct sdw_port_config *port_config, + unsigned int num_ports, + struct sdw_stream_runtime *stream); +int sdw_stream_remove_slave(struct sdw_slave *slave, + struct sdw_stream_runtime *stream); + +/* messaging and data APIs */ int sdw_read(struct sdw_slave *slave, u32 addr); int sdw_write(struct sdw_slave *slave, u32 addr, u8 value); int sdw_write_no_pm(struct sdw_slave *slave, u32 addr, u8 value); @@ -1053,7 +1059,86 @@ int sdw_nwrite_no_pm(struct sdw_slave *slave, u32 addr, size_t count, const u8 * int sdw_update(struct sdw_slave *slave, u32 addr, u8 mask, u8 val); int sdw_update_no_pm(struct sdw_slave *slave, u32 addr, u8 mask, u8 val); -int sdw_compare_devid(struct sdw_slave *slave, struct sdw_slave_id id); -void sdw_extract_slave_id(struct sdw_bus *bus, u64 addr, struct sdw_slave_id *id); +#else + +static inline int sdw_stream_add_slave(struct sdw_slave *slave, + struct sdw_stream_config *stream_config, + struct sdw_port_config *port_config, + unsigned int num_ports, + struct sdw_stream_runtime *stream) +{ + WARN_ONCE(1, "SoundWire API is disabled"); + return -EINVAL; +} + +static inline int sdw_stream_remove_slave(struct sdw_slave *slave, + struct sdw_stream_runtime *stream) +{ + WARN_ONCE(1, "SoundWire API is disabled"); + return -EINVAL; +} + +/* messaging and data APIs */ +static inline int sdw_read(struct sdw_slave *slave, u32 addr) +{ + WARN_ONCE(1, "SoundWire API is disabled"); + return -EINVAL; +} + +static inline int sdw_write(struct sdw_slave *slave, u32 addr, u8 value) +{ + WARN_ONCE(1, "SoundWire API is disabled"); + return -EINVAL; +} + +static inline int sdw_write_no_pm(struct sdw_slave *slave, u32 addr, u8 value) +{ + WARN_ONCE(1, "SoundWire API is disabled"); + return -EINVAL; +} + +static inline int sdw_read_no_pm(struct sdw_slave *slave, u32 addr) +{ + WARN_ONCE(1, "SoundWire API is disabled"); + return -EINVAL; +} + +static inline int sdw_nread(struct sdw_slave *slave, u32 addr, size_t count, u8 *val) +{ + WARN_ONCE(1, "SoundWire API is disabled"); + return -EINVAL; +} + +static inline int sdw_nread_no_pm(struct sdw_slave *slave, u32 addr, size_t count, u8 *val) +{ + WARN_ONCE(1, "SoundWire API is disabled"); + return -EINVAL; +} + +static inline int sdw_nwrite(struct sdw_slave *slave, u32 addr, size_t count, const u8 *val) +{ + WARN_ONCE(1, "SoundWire API is disabled"); + return -EINVAL; +} + +static inline int sdw_nwrite_no_pm(struct sdw_slave *slave, u32 addr, size_t count, const u8 *val) +{ + WARN_ONCE(1, "SoundWire API is disabled"); + return -EINVAL; +} + +static inline int sdw_update(struct sdw_slave *slave, u32 addr, u8 mask, u8 val) +{ + WARN_ONCE(1, "SoundWire API is disabled"); + return -EINVAL; +} + +static inline int sdw_update_no_pm(struct sdw_slave *slave, u32 addr, u8 mask, u8 val) +{ + WARN_ONCE(1, "SoundWire API is disabled"); + return -EINVAL; +} + +#endif /* CONFIG_SOUNDWIRE */ #endif /* __SOUNDWIRE_H */ From patchwork Fri Nov 25 14:20:28 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Charles Keepax X-Patchwork-Id: 628578 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 1E853C4332F for ; Fri, 25 Nov 2022 14:21:56 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id F41051732; 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Fri, 25 Nov 2022 08:20:31 -0600 Received: from ediex01.ad.cirrus.com (198.61.84.80) by ediex02.ad.cirrus.com (198.61.84.81) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.20; Fri, 25 Nov 2022 08:20:29 -0600 Received: from ediswmail.ad.cirrus.com (198.61.86.93) by ediex01.ad.cirrus.com (198.61.84.80) with Microsoft SMTP Server id 15.2.1118.20 via Frontend Transport; Fri, 25 Nov 2022 08:20:29 -0600 Received: from algalon.ad.cirrus.com (algalon.ad.cirrus.com [198.90.251.122]) by ediswmail.ad.cirrus.com (Postfix) with ESMTP id 37CA5B38; Fri, 25 Nov 2022 14:20:29 +0000 (UTC) From: Charles Keepax To: Subject: [PATCH v4 4/4] soundwire: stream: Move remaining register accesses over to no_pm Date: Fri, 25 Nov 2022 14:20:28 +0000 Message-ID: <20221125142028.1118618-5-ckeepax@opensource.cirrus.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20221125142028.1118618-1-ckeepax@opensource.cirrus.com> References: <20221125142028.1118618-1-ckeepax@opensource.cirrus.com> MIME-Version: 1.0 X-Proofpoint-ORIG-GUID: LooFxkxWoUaNREqwQAfMgxTxqeMC4YcB X-Proofpoint-GUID: LooFxkxWoUaNREqwQAfMgxTxqeMC4YcB X-Proofpoint-Spam-Reason: safe Cc: alsa-devel@alsa-project.org, patches@opensource.cirrus.com, pierre-louis.bossart@linux.intel.com, linux-kernel@vger.kernel.org, sanyog.r.kale@intel.com, yung-chuan.liao@linux.intel.com X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" There is no need to play with the runtime reference everytime a register is accessed. All the remaining "pm" style register accesses trace back to 4 functions: sdw_prepare_stream sdw_deprepare_stream sdw_enable_stream sdw_disable_stream Any sensible implementation will need to hold a runtime reference across all those functions, it makes no sense to be allowing the device/bus to suspend whilst streams are being prepared/enabled. And certainly in the case of the all existing users, they all call these functions from hw_params/prepare/trigger/hw_free callbacks in ALSA, which will have already runtime resumed all the audio devices associated during the open callback. Reviewed-by: Pierre-Louis Bossart Signed-off-by: Charles Keepax --- No change since v3. drivers/soundwire/bus.c | 2 +- drivers/soundwire/stream.c | 30 +++++++++++++++--------------- 2 files changed, 16 insertions(+), 16 deletions(-) diff --git a/drivers/soundwire/bus.c b/drivers/soundwire/bus.c index ef4878258afad..d87a188fcce1e 100644 --- a/drivers/soundwire/bus.c +++ b/drivers/soundwire/bus.c @@ -1214,7 +1214,7 @@ int sdw_configure_dpn_intr(struct sdw_slave *slave, val &= ~SDW_DPN_INT_PORT_READY; } - ret = sdw_update(slave, addr, (mask | SDW_DPN_INT_PORT_READY), val); + ret = sdw_update_no_pm(slave, addr, (mask | SDW_DPN_INT_PORT_READY), val); if (ret < 0) dev_err(&slave->dev, "SDW_DPN_INTMASK write failed:%d\n", val); diff --git a/drivers/soundwire/stream.c b/drivers/soundwire/stream.c index bd502368339e5..df3b36670df4c 100644 --- a/drivers/soundwire/stream.c +++ b/drivers/soundwire/stream.c @@ -81,14 +81,14 @@ static int _sdw_program_slave_port_params(struct sdw_bus *bus, } /* Program DPN_OffsetCtrl2 registers */ - ret = sdw_write(slave, addr1, t_params->offset2); + ret = sdw_write_no_pm(slave, addr1, t_params->offset2); if (ret < 0) { dev_err(bus->dev, "DPN_OffsetCtrl2 register write failed\n"); return ret; } /* Program DPN_BlockCtrl3 register */ - ret = sdw_write(slave, addr2, t_params->blk_pkg_mode); + ret = sdw_write_no_pm(slave, addr2, t_params->blk_pkg_mode); if (ret < 0) { dev_err(bus->dev, "DPN_BlockCtrl3 register write failed\n"); return ret; @@ -105,7 +105,7 @@ static int _sdw_program_slave_port_params(struct sdw_bus *bus, /* Program DPN_SampleCtrl2 register */ wbuf = FIELD_GET(SDW_DPN_SAMPLECTRL_HIGH, t_params->sample_interval - 1); - ret = sdw_write(slave, addr3, wbuf); + ret = sdw_write_no_pm(slave, addr3, wbuf); if (ret < 0) { dev_err(bus->dev, "DPN_SampleCtrl2 register write failed\n"); return ret; @@ -115,7 +115,7 @@ static int _sdw_program_slave_port_params(struct sdw_bus *bus, wbuf = FIELD_PREP(SDW_DPN_HCTRL_HSTART, t_params->hstart); wbuf |= FIELD_PREP(SDW_DPN_HCTRL_HSTOP, t_params->hstop); - ret = sdw_write(slave, addr4, wbuf); + ret = sdw_write_no_pm(slave, addr4, wbuf); if (ret < 0) dev_err(bus->dev, "DPN_HCtrl register write failed\n"); @@ -163,7 +163,7 @@ static int sdw_program_slave_port_params(struct sdw_bus *bus, wbuf = FIELD_PREP(SDW_DPN_PORTCTRL_DATAMODE, p_params->data_mode); wbuf |= FIELD_PREP(SDW_DPN_PORTCTRL_FLOWMODE, p_params->flow_mode); - ret = sdw_update(s_rt->slave, addr1, 0xF, wbuf); + ret = sdw_update_no_pm(s_rt->slave, addr1, 0xF, wbuf); if (ret < 0) { dev_err(&s_rt->slave->dev, "DPN_PortCtrl register write failed for port %d\n", @@ -173,7 +173,7 @@ static int sdw_program_slave_port_params(struct sdw_bus *bus, if (!dpn_prop->read_only_wordlength) { /* Program DPN_BlockCtrl1 register */ - ret = sdw_write(s_rt->slave, addr2, (p_params->bps - 1)); + ret = sdw_write_no_pm(s_rt->slave, addr2, (p_params->bps - 1)); if (ret < 0) { dev_err(&s_rt->slave->dev, "DPN_BlockCtrl1 register write failed for port %d\n", @@ -184,7 +184,7 @@ static int sdw_program_slave_port_params(struct sdw_bus *bus, /* Program DPN_SampleCtrl1 register */ wbuf = (t_params->sample_interval - 1) & SDW_DPN_SAMPLECTRL_LOW; - ret = sdw_write(s_rt->slave, addr3, wbuf); + ret = sdw_write_no_pm(s_rt->slave, addr3, wbuf); if (ret < 0) { dev_err(&s_rt->slave->dev, "DPN_SampleCtrl1 register write failed for port %d\n", @@ -193,7 +193,7 @@ static int sdw_program_slave_port_params(struct sdw_bus *bus, } /* Program DPN_OffsetCtrl1 registers */ - ret = sdw_write(s_rt->slave, addr4, t_params->offset1); + ret = sdw_write_no_pm(s_rt->slave, addr4, t_params->offset1); if (ret < 0) { dev_err(&s_rt->slave->dev, "DPN_OffsetCtrl1 register write failed for port %d\n", @@ -203,7 +203,7 @@ static int sdw_program_slave_port_params(struct sdw_bus *bus, /* Program DPN_BlockCtrl2 register*/ if (t_params->blk_grp_ctrl_valid) { - ret = sdw_write(s_rt->slave, addr5, t_params->blk_grp_ctrl); + ret = sdw_write_no_pm(s_rt->slave, addr5, t_params->blk_grp_ctrl); if (ret < 0) { dev_err(&s_rt->slave->dev, "DPN_BlockCtrl2 reg write failed for port %d\n", @@ -214,7 +214,7 @@ static int sdw_program_slave_port_params(struct sdw_bus *bus, /* program DPN_LaneCtrl register */ if (slave_prop->lane_control_support) { - ret = sdw_write(s_rt->slave, addr6, t_params->lane_ctrl); + ret = sdw_write_no_pm(s_rt->slave, addr6, t_params->lane_ctrl); if (ret < 0) { dev_err(&s_rt->slave->dev, "DPN_LaneCtrl register write failed for port %d\n", @@ -319,9 +319,9 @@ static int sdw_enable_disable_slave_ports(struct sdw_bus *bus, * it is safe to reset this register */ if (en) - ret = sdw_write(s_rt->slave, addr, p_rt->ch_mask); + ret = sdw_write_no_pm(s_rt->slave, addr, p_rt->ch_mask); else - ret = sdw_write(s_rt->slave, addr, 0x0); + ret = sdw_write_no_pm(s_rt->slave, addr, 0x0); if (ret < 0) dev_err(&s_rt->slave->dev, @@ -476,9 +476,9 @@ static int sdw_prep_deprep_slave_ports(struct sdw_bus *bus, addr = SDW_DPN_PREPARECTRL(p_rt->num); if (prep) - ret = sdw_write(s_rt->slave, addr, p_rt->ch_mask); + ret = sdw_write_no_pm(s_rt->slave, addr, p_rt->ch_mask); else - ret = sdw_write(s_rt->slave, addr, 0x0); + ret = sdw_write_no_pm(s_rt->slave, addr, 0x0); if (ret < 0) { dev_err(&s_rt->slave->dev, @@ -491,7 +491,7 @@ static int sdw_prep_deprep_slave_ports(struct sdw_bus *bus, wait_for_completion_timeout(port_ready, msecs_to_jiffies(dpn_prop->ch_prep_timeout)); - val = sdw_read(s_rt->slave, SDW_DPN_PREPARESTATUS(p_rt->num)); + val = sdw_read_no_pm(s_rt->slave, SDW_DPN_PREPARESTATUS(p_rt->num)); if ((val < 0) || (val & p_rt->ch_mask)) { ret = (val < 0) ? val : -ETIMEDOUT; dev_err(&s_rt->slave->dev,