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Tue, 29 Sep 2026 22:17:50 -0400 (EDT) Received: from ASHBMBX8.ad.analog.com (ASHBMBX8.ad.analog.com [10.64.17.5]) by nwd2mta4.analog.com (8.14.7/8.14.7) with ESMTP id 68U2Hn4k047880 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 29 Sep 2026 22:17:49 -0400 Received: from ASHBMBX9.ad.analog.com (10.64.17.10) by ASHBMBX8.ad.analog.com (10.64.17.5) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1748.37; Tue, 29 Sep 2026 22:17:49 -0400 Received: from zeus.spd.analog.com (10.66.68.11) by ashbmbx9.ad.analog.com (10.64.17.10) with Microsoft SMTP Server id 15.2.1748.37 via Frontend Transport; Tue, 29 Sep 2026 22:17:49 -0400 Received: from JSANTO12-L01.ad.analog.com ([10.65.60.206]) by zeus.spd.analog.com (8.15.1/8.15.1) with ESMTP id 68U2HaZT015845; Tue, 29 Sep 2026 22:17:38 -0400 From: Jonathan Santos To: , CC: Jonathan Santos , , , , , , Subject: [PATCH v2 0/2] spi: axi-spi-engine: fix stale SYNC IRQ pending Date: Tue, 29 Sep 2026 23:17:06 -0300 Message-ID: X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ADIRuleOP-NewSCL: Rule Triggered X-Proofpoint-ORIG-GUID: 2T73B6cPByNweAye4_FlrdfWaB0dzh21 X-Proofpoint-Spam-Info: AW1haW4tMjYwOTMwMDAwOCBTYWx0ZWRfX5lIDyX+gApCz 1GNgiSY6gOpJllJBkaW4QwpbfCXKR4b71GOPdUSpxZ+4LXjHHJGlN2NY/QlxtgLoxjssLlMJ/N8 vm4kChOhQl1lydrGyc77gZXQHH5fWc9g5OK2mZDwma70zN3VmH6Y X-Authority-Analysis: v=2.4 cv=VJlIDNPX c=1 sm=1 tr=0 ts=6abc714e cx=c_pps a=3WNzaoukacrqR9RwcOSAdA==:117 a=3WNzaoukacrqR9RwcOSAdA==:17 a=VdqzKS8jKosA:10 a=VkNPw1HP01LnGYTKEx00:22 a=0sLvza09kfJOxVLZPwjg:22 a=OmVn7CZJonkx5R5zMQLL:22 a=VwQbUJbxAAAA:8 a=gAnH3GRIAAAA:8 a=3EvmjnR45BohH-wPFtUA:9 X-Proofpoint-GUID: 2T73B6cPByNweAye4_FlrdfWaB0dzh21 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTMwMDAwOCBTYWx0ZWRfX3p5vF26ZZR2s sbbBqIVZL0+r1mKJwzD5r3sGNMmsrh3JX7/c6TJuW9SQw1Ats9Ulv/yzp1iyR4lBUBYe8S07xZI fSl+hlEiLgXdRvbnzbP8f2v3khirq/tBhbw3iTgdra41LHExGLgcMAfO1FbTN1rydeL7aDwTytl xvRvo8iBUwJHLDB95O8N7GIHNENa/oXog/A3SB2GqGX1HE2eBGVibbT4tH0vF+mJOrAC5EEwTAT byIsq04Y2UfvIGWB8zV/CbRNCNArmWDb7+0aCE+yb6lRugFSANDVWC7qumTCGJWkQlL7FQPp+6L 8j9fSswNO8aTAGtJBL1x995Xp9lEF+CTaqhI0YTvxe1lRWFcDbdLzfWRBqyxVS4tJBi1JzKKJwX wexn+Z17pDXpmLUZ8CVER/psR/VF/fPz41njnFCsvF79fuYg07ZNnzuNO9aYrruGhJZR9O4Tv5X XwxHgUYZ4wHa6iMIsvw== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-09-29_05,2026-09-21_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 suspectscore=0 impostorscore=0 malwarescore=0 clxscore=1015 adultscore=0 bulkscore=0 spamscore=0 phishscore=0 lowpriorityscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2609040000 definitions=main-2609300008 Both spi_engine_setup() and spi_engine_trigger_enable() send a SYNC(1) command and poll SYNC_ID, but never clear INT_PENDING[SYNC] afterward. This leaves a stale pending bit that fires spuriously when INT_SYNC is enabled later by some driver, causing premature transfer completion at low SPI clock frequencies (more likely). Fix both functions by clearing the pending bit after polling. v2 summary: * Replaced "Link" tag for "Closes" tag. * Included "Fixes" tag. * Added new patch applying similar fix for the spi_engine_trigger_enable(), as pointed out by David. * While at it, replaced plain "1000" by "1 * USEC_PER_MSEC" for better clarity. * Link to v1: https://lore.kernel.org/linux-spi/04d51e99b8cddce51113db933d806e83848f04f5.1788313558.git.Jonathan.Santos@analog.com/T/#t Jonathan Santos (2): spi: axi-spi-engine: fix stale SYNC IRQ pending spi: axi-spi-engine: fix stale SYNC IRQ pending in trigger_enable drivers/spi/spi-axi-spi-engine.c | 16 +++++++++++++--- 1 file changed, 13 insertions(+), 3 deletions(-) base-commit: a3b3580713f3ac5a32dc2874ee546828977a1d68 -- 2.34.1