From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from sender4-pp-f112.zoho.com (sender4-pp-f112.zoho.com [136.143.188.112]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 89D5D1D90DF for ; Sat, 28 Feb 2026 00:18:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=pass smtp.client-ip=136.143.188.112 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772237918; cv=pass; b=rIlNZ6+3/HakyCgmd4bl/vB+7dZWN1a5IMXHAWnUM+oxUpKjZsAjz903gRY+obHTsNBSw/iX4/JsKVhMlAIgA02hLSHCRLcDkp2vU7HqzpdG2AhQjgFIaswRpaWqPOKlYh4OXiVpBYLDIXEU6gVD+bCOtRYSvqxAibE97j8K+3E= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772237918; c=relaxed/simple; bh=mYMjCijn2VNsBpyXhFtQ67j1K2xeuQUZ3hiSVMgIw0I=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=qMY875PX1M3vlmIp7N2WqMyjfhPGe6TD4fjy2zumO/ePm9rgdczpPLy+yChEhYDE1OmtYIJV2OQN4L6hSa2q0DhMOFc5nzx+K67JO346E1tS8n2ndG3be9upumjfLFK5GAszEN0bMk9FRgwqWMBOzz4Inp7M6KLFSQBL12zAIzQ= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (1024-bit key) header.d=collabora.com header.i=deborah.brouwer@collabora.com header.b=dDiNbL4j; arc=pass smtp.client-ip=136.143.188.112 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=collabora.com header.i=deborah.brouwer@collabora.com header.b="dDiNbL4j" ARC-Seal: i=1; a=rsa-sha256; t=1772237910; cv=none; d=zohomail.com; s=zohoarc; b=NqKY9nwwIRO9Das6zw6/VLDkpSVzsS+qkXLEtGrxWNUPsrzEX7SxqQOF8HwDtLSAYq2gtmscNCe0YOw00eMMHUBpeaU2C/ontuXJS8p7iZqORbFmhzPVdU7VnOfMPmUlfLpBDyzY4KxHBGn0FC7igE56QeSNdJpDXoa0s4KpFqI= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1772237910; h=Content-Type:Cc:Cc:Date:Date:From:From:In-Reply-To:MIME-Version:Message-ID:References:Subject:Subject:To:To:Message-Id:Reply-To; bh=Klm6q63orIAA7W8i0kJmSBPifIFUgHAEkJyTVjy1+kg=; b=D6wRGBTGJdf4otEGXCWQ2Cm++SX3Lzy9C+CPIXpDqPYuWosTDqZSW9ctJMrdnrwEFjJipYB1tLQvGB+Cb2qDldPXMoAYovT9rH9+WA6TsrbzdKgNVHR2iTpzuig6eDrC+Swx/D/IvQK1FkYsGQF5zfIyKq4dgTgd/ckrG+zB1VE= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass header.i=collabora.com; spf=pass smtp.mailfrom=deborah.brouwer@collabora.com; dmarc=pass header.from= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; t=1772237910; s=zohomail; d=collabora.com; i=deborah.brouwer@collabora.com; h=Date:Date:From:From:To:To:Cc:Cc:Subject:Subject:Message-ID:References:MIME-Version:Content-Type:In-Reply-To:Message-Id:Reply-To; bh=Klm6q63orIAA7W8i0kJmSBPifIFUgHAEkJyTVjy1+kg=; b=dDiNbL4joLNuvPOBmZhVT6iKrb273U/P2rhPhgAyqZ9X2HTnDsQpfp4j5RD7XwxB bsyCh9vT2GJka8Zc+ZVzO+2eI5zVg3tX5MzyzBJW/Ajh5731leFgdFpHOyiFFto/tzB m2R+RwlPuLlAKt3V0PiOBiZqkwj6UvdetPs2JvZI= Received: by mx.zohomail.com with SMTPS id 177223790747952.936575191812835; Fri, 27 Feb 2026 16:18:27 -0800 (PST) Date: Fri, 27 Feb 2026 16:18:27 -0800 From: Deborah Brouwer To: Boris Brezillon Cc: dri-devel@lists.freedesktop.org, rust-for-linux@vger.kernel.org, daniel.almeida@collabora.com, aliceryhl@google.com, beata.michalska@arm.com, lyude@redhat.com Subject: Re: [PATCH 02/12] drm/tyr: move clock cleanup into Clocks Drop impl Message-ID: References: <20260212013713.304343-1-deborah.brouwer@collabora.com> <20260212013713.304343-3-deborah.brouwer@collabora.com> <20260212091255.74b65cb0@fedora> Precedence: bulk X-Mailing-List: rust-for-linux@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260212091255.74b65cb0@fedora> On Thu, Feb 12, 2026 at 09:12:55AM +0100, Boris Brezillon wrote: > On Wed, 11 Feb 2026 17:37:03 -0800 > Deborah Brouwer wrote: > > > Currently Tyr disables its clocks from TyrDrmDeviceData::drop(), which > > causes them to be shut down before any other fields in TyrDrmDeviceData > > are dropped. This prevents us from using the clocks when dropping the > > other fields in TyrDrmDeviceData. > > > > In order to better control when the clocks are dropped, move this cleanup > > logic into a Drop implementation on the Clocks struct itself. > > > > Signed-off-by: Deborah Brouwer > > Maybe you should mention that Clocks is no longer considered pinned, > because it's not needed in practice. Ack will do. > > Reviewed-by: Boris Brezillon > > > --- > > drivers/gpu/drm/tyr/driver.rs | 23 +++++++++-------------- > > 1 file changed, 9 insertions(+), 14 deletions(-) > > > > diff --git a/drivers/gpu/drm/tyr/driver.rs b/drivers/gpu/drm/tyr/driver.rs > > index ae4daa12b3e5..9bc6ed56c45e 100644 > > --- a/drivers/gpu/drm/tyr/driver.rs > > +++ b/drivers/gpu/drm/tyr/driver.rs > > @@ -54,7 +54,7 @@ pub(crate) struct TyrPlatformDeviceData { > > _device: ARef, > > } > > > > -#[pin_data(PinnedDrop)] > > +#[pin_data] > > pub(crate) struct TyrDrmDeviceData { > > pub(crate) pdev: ARef, > > > > @@ -168,17 +168,6 @@ impl PinnedDrop for TyrPlatformDeviceData { > > fn drop(self: Pin<&mut Self>) {} > > } > > > > -#[pinned_drop] > > -impl PinnedDrop for TyrDrmDeviceData { > > - fn drop(self: Pin<&mut Self>) { > > - // TODO: the type-state pattern for Clks will fix this. > > - let clks = self.clks.lock(); > > - clks.core.disable_unprepare(); > > - clks.stacks.disable_unprepare(); > > - clks.coregroup.disable_unprepare(); > > - } > > -} > > - > > // We need to retain the name "panthor" to achieve drop-in compatibility with > > // the C driver in the userspace stack. > > const INFO: drm::DriverInfo = drm::DriverInfo { > > @@ -202,14 +191,20 @@ impl drm::Driver for TyrDrmDriver { > > } > > } > > > > -#[pin_data] > > struct Clocks { > > core: Clk, > > stacks: OptionalClk, > > coregroup: OptionalClk, > > } > > > > -#[pin_data] > > +impl Drop for Clocks { > > + fn drop(&mut self) { > > + self.core.disable_unprepare(); > > + self.stacks.disable_unprepare(); > > + self.coregroup.disable_unprepare(); > > + } > > +} > > + > > struct Regulators { > > _mali: Regulator, > > _sram: Regulator, >