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Mon, 23 Mar 2020 13:28:40 +0100 (CET) Received: by alsa1.perex.cz (Postfix, from userid 50401) id B0A65F80158; Mon, 23 Mar 2020 13:28:37 +0100 (CET) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id C1CE9F800B9 for ; Mon, 23 Mar 2020 13:28:33 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz C1CE9F800B9 Authentication-Results: alsa1.perex.cz; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="IkCzc8kP" Received: from localhost (unknown [122.178.205.141]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 163262076A; Mon, 23 Mar 2020 12:28:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1584966510; bh=AexYx5wOc1U061eltXUm1TbpFydE45ePZ/s/WCxM2RA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=IkCzc8kP3xbTKjWOGHgTW58ayOwIG6rpOGVwZ/LzBxVOavqRcL+6GE2Mnw6TUk3Dl JOS765Ghx8YoEAP2AQ3Pg75nUErlfZzcO+IkMIiqXwX267yNeCRZ2Iige1pkNoP3um nenJh5yv5aLPtJqOHMczXQVWvhLbOCfgo7ncwbG4= Date: Mon, 23 Mar 2020 17:58:26 +0530 From: Vinod Koul To: Pierre-Louis Bossart Subject: Re: [PATCH 4/7] soundwire: intel: add definitions for shim_mask Message-ID: <20200323122826.GL72691@vkoul-mobl> References: <20200311221026.18174-1-pierre-louis.bossart@linux.intel.com> <20200311221026.18174-5-pierre-louis.bossart@linux.intel.com> <20200320134257.GD4885@vkoul-mobl> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Cc: alsa-devel@alsa-project.org, tiwai@suse.de, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, Ranjani Sridharan , Hui Wang , broonie@kernel.org, srinivas.kandagatla@linaro.org, jank@cadence.com, slawomir.blauciak@intel.com, Sanyog Kale , Bard liao , Rander Wang X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" On 20-03-20, 09:13, Pierre-Louis Bossart wrote: > > > > diff --git a/drivers/soundwire/intel.h b/drivers/soundwire/intel.h > > > index 568c84a80d79..cfc83120b8f9 100644 > > > --- a/drivers/soundwire/intel.h > > > +++ b/drivers/soundwire/intel.h > > > @@ -16,6 +16,7 @@ > > > * @ops: Shim callback ops > > > * @dev: device implementing hw_params and free callbacks > > > * @shim_lock: mutex to handle access to shared SHIM registers > > > + * @shim_mask: global pointer to check SHIM register initialization > > > */ > > > struct sdw_intel_link_res { > > > struct platform_device *pdev; > > > @@ -27,6 +28,7 @@ struct sdw_intel_link_res { > > > const struct sdw_intel_ops *ops; > > > struct device *dev; > > > struct mutex *shim_lock; /* protect shared registers */ > > > + u32 *shim_mask; > > > > You have a pointer, okay where is it initialized > > same answer as shim_lock, it's initialized at the higher level > > https://github.com/thesofproject/linux/blob/9c7487b33072040ab755d32ca173b75151c0160c/drivers/soundwire/intel_init.c#L252 Why can't it be done here, what stops you? You really need to keep initialzation and usage in same patch :( -- ~Vinod