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Wed, 14 Oct 2026 10:34:24 -0700 (PDT) Received: from [127.0.1.1] ([2001:4bb8:148:f08c:65a8:f8e5:f310:5a71]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c3ed963cecesm9381366b.21.2026.10.14.10.34.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 14 Oct 2026 10:34:24 -0700 (PDT) From: Javier Carrasco Date: Wed, 14 Oct 2026 19:34:06 +0200 Subject: [PATCH v3 07/11] hwmon: chipcap2: enable IRQ processing when regulator is already enabled Precedence: bulk X-Mailing-List: linux-hwmon@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20261014-chipcap2_locks-v3-7-27ebfc2c5b9e@gmail.com> References: <20261014-chipcap2_locks-v3-0-27ebfc2c5b9e@gmail.com> In-Reply-To: <20261014-chipcap2_locks-v3-0-27ebfc2c5b9e@gmail.com> To: Guenter Roeck Cc: linux-hwmon@vger.kernel.org, linux-kernel@vger.kernel.org, Javier Carrasco , stable@vger.kernel.org X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1791999252; l=1283; i=javier.carrasco.cruz@gmail.com; s=20260924; h=from:subject:message-id; bh=fIqA33wSyUtbRcCcYiczdNv6wVti+pGWaArnAAC/2uc=; b=wGwEIFvv57yZEZRHNLCnr5pHFMdGHny3xsVW76RPyioM1t8Hqj03BSfwk9UChXIEm0Sf6Hlt8 TJldbe/ES8UByswF2ukfIfMUIQQgn+r0EIUg0837081JqI2pn8heN00 X-Developer-Key: i=javier.carrasco.cruz@gmail.com; a=ed25519; pk=VV+hcMoOj1Sx6xSiY0W/FZNAskGZe2AagSMVj0PsmAs= cc2_enable() returns early when the regulator is already enabled. This can happen if a previous regulator_disable() failed or if the regulator was configured as always-on. In this case, process_irqs remains false, causing the ready interrupt to be ignored. Subsequent operations waiting for the ready completion then time out. Set process_irqs before returning when the regulator is already enabled, so that the driver continues to process ready interrupts. Fixes: 3af350929e75 ("hwmon: Add support for Amphenol ChipCap 2") Cc: stable@vger.kernel.org Signed-off-by: Javier Carrasco --- drivers/hwmon/chipcap2.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/hwmon/chipcap2.c b/drivers/hwmon/chipcap2.c index 654f6420da7a..837b1830f2e4 100644 --- a/drivers/hwmon/chipcap2.c +++ b/drivers/hwmon/chipcap2.c @@ -120,8 +120,10 @@ static int cc2_enable(struct cc2_data *data) int ret; /* exclusive regulator, check in case a disable failed */ - if (regulator_is_enabled(data->regulator)) + if (regulator_is_enabled(data->regulator)) { + data->process_irqs = true; return 0; + } /* clear any pending completion */ try_wait_for_completion(&data->complete); -- 2.43.0