From patchwork Fri Feb 23 13:39:24 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alex Elder X-Patchwork-Id: 13569103 Received: from mail-io1-f47.google.com (mail-io1-f47.google.com [209.85.166.47]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3418322EF5 for ; Fri, 23 Feb 2024 13:39:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.47 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708695577; cv=none; b=hF5kBuLvW4HDXl+vpX5RavJJP2ZqL4QDA+2cYkC8RcjOmAHkSzDwclEtBe123SdOsn2r7SNzHjOeguY3C0yt8x6+EpgWb6uhZ2ngGou579A3fMxtjk2QQ+SKXUMw5vTbNYe6Dt5hG/mhlwuz24lMIoE/Qf7Sfc8KxGcoN2OMqjA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708695577; c=relaxed/simple; bh=Twp7tfSTw0JcrYxColLY4Ax9TG/pkPRhM7VLYkZRS4A=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=XXpapI9Fnh4tbeQjd7dTDs6yhOOBap+CzSCbVO9EMNyxH03eYJvyyYCxsHF4rVESEptK6RX4SkvZYqe7eqSN2wBSCgZXFVqJulcQSTq3G3x+qpmxSltmxh4BB67NwpeG0Hr86AvsVzuI0QOZq2XnQvE5vx7XJCzPfAquMqZJG+s= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linaro.org; spf=pass smtp.mailfrom=linaro.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b=O1pfL0Nj; arc=none smtp.client-ip=209.85.166.47 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linaro.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linaro.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="O1pfL0Nj" Received: by mail-io1-f47.google.com with SMTP id ca18e2360f4ac-7c4949661a2so30826239f.1 for ; Fri, 23 Feb 2024 05:39:35 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1708695575; x=1709300375; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=d4x2sMmK8Ljy9DYC/W73ZknuhG0GdB53Q7DPx/D50TQ=; b=O1pfL0NjKwcPNi6v4TRbX29zYKLHT9rMUoyBA4x2AZuL0ZSjaepb9uKDoEpUo3cMzk pJ9Imwnzko2bF3xyF4oqRTx3yD+bDoWAtWke12lKiK1u8FVmMYJGv8J2C24svYf45wow xTp4qQ7ZXEjU1BbrXn5OZ5+fmmRd7M2ERjJrtmT00sj5N8j1m7DmsgMNOtWy11a1fKPo hcJpWg8Baju6GSUd/gPvjBVW95iGZhqW/sUnGZfMc8y420mj4lABxgkkREtMgbtuiX7t x5sulLg0C39I3Dyt0Tk4ZZ6wxXAdpSwCzpD1TyKtIhVYM2/ckv/0/PlqMbrtc+tbvB9/ pxLA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1708695575; x=1709300375; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=d4x2sMmK8Ljy9DYC/W73ZknuhG0GdB53Q7DPx/D50TQ=; b=UDDWFr47+ewAPlSFaFaLJnZ0lx5RON/ATTKcTaCKt48rQlDveZ+T1IepcP0+z4TO4R ypG7L081pteAH9YehdwN9YIL5R4ra7Hu4FR6ge0XqXLWC9Ja8IcIEqT24Qi1sIYDHErh Npds+b2GkOLezWjtvcryYUBGh4z0kxxGYLurY3afMD5/mnULIqmHeP7nVFm2xZ/mu1iX 37WZ7lUAGhrFtUaw50KIlDE+zcpz+xcil3JNi4+dofzfkTql3BXR69XratuWI1sXEI9/ QGII6vlOLw3ehiM7685e1YIElTHvhHVh6X0cqXFS408WH2C22sxA8jIQ3HQNfoQi7Ze+ RkYg== X-Forwarded-Encrypted: i=1; AJvYcCU+D0jRJhJGoMnOdY5pdLQBHki/8jEAL8JLY5gx6w+AA9u2F2t6cVDbuLx7u18Rd0MzFW1AGyol/I0I/SxNlOingeu8rSlxrYE6igrqmg== X-Gm-Message-State: AOJu0Yxm7bzdstbHLcaGO91Z3ZIGMB+8syEYtnzT22fNvUTKH3g4YOwU QYnQRzsSKepbs/cxW3BwVtEU6QBe9/mQLKLUlqGmXJ5L/uCSN59dwrt/dP+sBak= X-Google-Smtp-Source: AGHT+IFrz5R0BlotlFi4jZ+FPrD+nKWN+cqkiTi9yfrUfHfyDhCGmqbGauLW7N/Kb+gQyn8NGnS1AQ== X-Received: by 2002:a6b:c90e:0:b0:7c7:9185:e58e with SMTP id z14-20020a6bc90e000000b007c79185e58emr1936714iof.12.1708695575154; Fri, 23 Feb 2024 05:39:35 -0800 (PST) Received: from localhost.localdomain (c-73-228-159-35.hsd1.mn.comcast.net. [73.228.159.35]) by smtp.gmail.com with ESMTPSA id p11-20020a6b630b000000b007c76a2d6a98sm1836838iog.53.2024.02.23.05.39.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 23 Feb 2024 05:39:34 -0800 (PST) From: Alex Elder To: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com Cc: mka@chromium.org, andersson@kernel.org, quic_cpratapa@quicinc.com, quic_avuyyuru@quicinc.com, quic_jponduru@quicinc.com, quic_subashab@quicinc.com, elder@kernel.org, netdev@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH net-next 0/6] net: ipa: don't abort system suspend Date: Fri, 23 Feb 2024 07:39:24 -0600 Message-Id: <20240223133930.582041-1-elder@linaro.org> X-Mailer: git-send-email 2.40.1 Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Currently the IPA code aborts an in-progress system suspend if an IPA interrupt arrives before the suspend completes. There is no need to do that though, because the IPA driver handles a forced suspend correctly, quiescing any hardware activity before finally turning off clocks and interconnects. This series drops the call to pm_wakeup_dev_event() if an IPA SUSPEND interrupt arrives during system suspend. Doing this makes the two remaining IPA power flags unnecessary, and allows some additional code to be cleaned up--and best of all, removed. The result is much simpler (and I'm really glad not to be using these flags any more). The first patch implements the main change. The second and third remove the flags that were used to determine whether to call pm_wakeup_dev_event(). The next two remove a function that becomes a trivial wrapper, and the last one just avoids writing a register unnecessarily. Note that the first two patches will have checkpatch warnings, because checkpatch disagrees with my compiler on what to do when a block contains only a semicolon. I went with what the compiler recommends. clang says: warning: suggest braces around empty body checkpatch: WARNING: braces {} are not necessary for single statement blocks -Alex Alex Elder (6): net: ipa: don't bother aborting system resume net: ipa: kill IPA_POWER_FLAG_SYSTEM net: ipa: kill the IPA_POWER_FLAG_RESUMED flag net: ipa: move ipa_interrupt_suspend_clear_all() up net: ipa: kill ipa_power_suspend_handler() net: ipa: don't bother zeroing an already zero register drivers/net/ipa/ipa_interrupt.c | 50 ++++++++++++++++----------------- drivers/net/ipa/ipa_interrupt.h | 8 ------ drivers/net/ipa/ipa_power.c | 33 ---------------------- drivers/net/ipa/ipa_power.h | 11 -------- 4 files changed, 25 insertions(+), 77 deletions(-)