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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-68310b52675sm1922402a12.8.2026.05.15.04.32.23 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 15 May 2026 04:32:24 -0700 (PDT) Message-ID: <2ba8b020-c8b9-4c60-9fa8-545642bde1fb@oss.qualcomm.com> Date: Fri, 15 May 2026 13:32:22 +0200 Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2] pinctrl: qcom: Unconditionally mark gpio as wakeup enable To: Sneh Mankad , Bjorn Andersson , Linus Walleij , Neil Armstrong , Krzysztof Kozlowski Cc: linux-arm-msm@vger.kernel.org, linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org, Maulik Shah References: <20260430-enable_wakeup_capable_gpios-v2-1-8c26ac795318@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20260430-enable_wakeup_capable_gpios-v2-1-8c26ac795318@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNTE1MDExNiBTYWx0ZWRfXzWo7wD+qHfZl U9tqf91NXrPxiDmPLm7jBFGPlM/O7+eGxhXxxEEf8tpiZehtgo+mLiJV8QD2vMXea93AUO+HFCe xIB6HIMPu05YQfDxmZxNRgxkQL5mCIXGWIEERfkeYhpMrOCRxQ+Aky4rYRFs/IASdf2IanVGN6S 1giD8a9vXG8nnrnDWdSRFnsAkY/evVgh+o1O5uOrptT4Ld7vKFUQRmpsALs3bsa7S9VOFvG1gqH e56veVWqsnlfsj4dVqhASYPS/+t+QmNatq3LDav3oMPuwBL7zLz1J9AXXKtYXHjpKTIGQb1HzQ4 MPmILLEdjaiS6zn7nXgrWadvAiCByM2Hidjp4XKVFN3PQtGS9PJUG1FXxgF2EDNrRqQGRRYpFqN ZAmQDbC2H1NSzPfI7yypUBwllq8F76Y7VSDEl6xjz9RF6Ss1fyPMZAyt/XHYDOTuje3jhbKnEbH Pyn6bS9JFhjqrfgcm5w== X-Proofpoint-GUID: Cqa1_KtffWABgZJvC6-C7X-3e612B2gl X-Proofpoint-ORIG-GUID: Cqa1_KtffWABgZJvC6-C7X-3e612B2gl X-Authority-Analysis: v=2.4 cv=BvqtB4X5 c=1 sm=1 tr=0 ts=6a07044a cx=c_pps a=EVbN6Ke/fEF3bsl7X48z0g==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=NGcC8JguVDcA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=ZpdpYltYx_vBUK5n70dp:22 a=EUspDBNiAAAA:8 a=pFRikYD481U3yHg_XLAA:9 a=QEXdDO2ut3YA:10 a=a_PwQJl-kcHnX1M80qC6:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-05-15_02,2026-05-13_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 suspectscore=0 phishscore=0 clxscore=1015 priorityscore=1501 spamscore=0 malwarescore=0 bulkscore=0 adultscore=0 lowpriorityscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2605130000 definitions=main-2605150116 On 4/30/26 11:20 AM, Sneh Mankad wrote: > The wakeup enable bit needs to be set irrespective of the SoC using PDC or > MPM as wakeup capable irqchip to allow the GPIO interrupts to be forwarded > to parent irqchip. > > This is set only for PDC irqchip using additional check skip_wake_irqs > making it impossible for MPM irqchip to detect the GPIO interrupt during > SoC low power mode since for MPM irqchip the skip_wake_irqs is always > false. > > Remove skip_wake_irqs condition when setting wakeup enable bit to allow > forwarding GPIO interrupts for SoCs using MPM irqchip too. > > Fixes: 76b446f5b86e ("pinctrl: qcom: handle intr_target_reg wakeup_present/enable bits") > Signed-off-by: Sneh Mankad > Reviewed-by: Maulik Shah > --- > Changes in v2: > - Modified comment to specify MPM HW as well. $ b4 diff 20260430-enable_wakeup_capable_gpios-v2-1-8c26ac795318@oss.qualcomm.com [...] ## drivers/pinctrl/qcom/pinctrl-msm.c ## @@ drivers/pinctrl/qcom/pinctrl-msm.c: static int msm_gpio_irq_reqres(struct irq_data *d) + /* + * If the wakeup_enable bit is present and marked as available for the + * requested GPIO, it should be enabled when the GPIO is marked as +- * wake irq in order to allow the interrupt event to be transfered to +- * the PDC HW. ++ * wake irq in order to allow the interrupt event to be transferred to ++ * the PDC/MPM HW. * While the name implies only the wakeup event, it's also required for * the interrupt event. */ This is not what I asked for. Instead, please focus on explaining what skip_wake_irqs is, perhaps under what conditions it is set, and how that differs for PDC vs MPM Konrad