From patchwork Tue Dec 6 20:07:36 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michael Walle X-Patchwork-Id: 13066254 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id AF020C3A5A7 for ; Tue, 6 Dec 2022 20:12:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=mO3WFXPSoPjcGYfvIVU9EPDBvsOlDn+oBhyo5LA7La4=; b=nxuVpwguO2rF0P GWPmWRQPr/kMnaXjRjx075vdD64poW+tBG2jaWt8EHi/xwUBZVdQk8gTVhug7PwC5U9lyC3yll2bk wPe0Xl6RgXUXoZ7vUziJmao9YPHv1rUE5wGE0kEng0P4PWgt9bhZGoYsuXjfiBUMsaDNXLpTqOHiv YfRS+pR/R/P04V9VVBNm3a+3p1AKw4Qw4xupesd+2SQEYdBZ9P3audRHtQNeEhtzttITCz1uw5/X5 o0z9c4SV/861hbPnsrwgJ4p9E5R40NfiqoKc2sEB8Dm+mjUBPJUT8v897UkdTxVMNnRh4aA3XDFgy Ooawx9gjjGxSMviOc6qA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1p2eHq-001nym-TD; Tue, 06 Dec 2022 20:11:31 +0000 Received: from 0001.3ffe.de ([2a01:4f8:c0c:9d57::1] helo=mail.3ffe.de) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1p2eEn-001kAo-8m for linux-arm-kernel@lists.infradead.org; Tue, 06 Dec 2022 20:08:24 +0000 Received: from mwalle01.kontron.local. (unknown [213.135.10.150]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mail.3ffe.de (Postfix) with ESMTPSA id 5AB6A3BC6; Tue, 6 Dec 2022 21:07:53 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=walle.cc; s=mail2022082101; t=1670357273; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=J7SJGsn5PwH3KKasmpxguMiSfB3p2ys1JrTJjwXri5Y=; b=iIGAW8B5O8Xb9pGmDJvfgfkva2BrZ6Fp5OymfEALdVxrOaKft7BeV+3lTMHcsIKd3mZ+/S mXqyuCbRrosZLA6DPHunlK0GMh44qzeYTyk/xkZxCSCQTwh7hQj1mHkqxbihfONU1lE86n kk3zrdADUSxLLLESb0ngvS3U4TcANNTxreJbbxw0r2LYZumsK/6uYlOhCZ6nndaGR8Zj0N aTQqhaYG9IdTMUo5VUq7Xr4pOVlpVmxW/Yyy9BOrvzgsjHilceA2EMSeF8+qoTMOV1hc+S /BzweQ9D+CdVkhLTe+wDZY3WDmxAK6gnNbXYC4Bla+p5CenO9AjEcTPBIlTavg== From: Michael Walle To: Jonathan Corbet , Srinivas Kandagatla , Miquel Raynal , Rob Herring , Frank Rowand , Sascha Hauer Cc: linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, Michael Walle , Dan Carpenter Subject: [PATCH v5 17/21] nvmem: core: provide own priv pointer in post process callback Date: Tue, 6 Dec 2022 21:07:36 +0100 Message-Id: <20221206200740.3567551-18-michael@walle.cc> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20221206200740.3567551-1-michael@walle.cc> References: <20221206200740.3567551-1-michael@walle.cc> MIME-Version: 1.0 X-Spam: Yes X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221206_120821_537361_FD423C3F X-CRM114-Status: GOOD ( 16.79 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org It doesn't make any more sense to have a opaque pointer set up by the nvmem device. Usually, the layout isn't associated with a particular nvmem device. Instead, let the caller who set the post process callback provide the priv pointer. Signed-off-by: Michael Walle --- changes since v4: - none changes since v3: - none changes since v2: - don't drop the pointer but let the user specify an opaque pointer changes since v1: - new patch drivers/nvmem/core.c | 4 +++- include/linux/nvmem-provider.h | 5 ++++- 2 files changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c index dc329daaa350..2282dc80aa0b 100644 --- a/drivers/nvmem/core.c +++ b/drivers/nvmem/core.c @@ -53,6 +53,7 @@ struct nvmem_cell_entry { int bit_offset; int nbits; nvmem_cell_post_process_t read_post_process; + void *priv; struct device_node *np; struct nvmem_device *nvmem; struct list_head node; @@ -470,6 +471,7 @@ static int nvmem_cell_info_to_nvmem_cell_entry_nodup(struct nvmem_device *nvmem, cell->bytes = info->bytes; cell->name = info->name; cell->read_post_process = info->read_post_process; + cell->priv = info->priv; cell->bit_offset = info->bit_offset; cell->nbits = info->nbits; @@ -1554,7 +1556,7 @@ static int __nvmem_cell_read(struct nvmem_device *nvmem, nvmem_shift_read_buffer_in_place(cell, buf); if (cell->read_post_process) { - rc = cell->read_post_process(nvmem->priv, id, index, + rc = cell->read_post_process(cell->priv, id, index, cell->offset, buf, cell->bytes); if (rc) return rc; diff --git a/include/linux/nvmem-provider.h b/include/linux/nvmem-provider.h index 12833fe4eb4d..cb0814f2ddae 100644 --- a/include/linux/nvmem-provider.h +++ b/include/linux/nvmem-provider.h @@ -20,7 +20,8 @@ typedef int (*nvmem_reg_write_t)(void *priv, unsigned int offset, void *val, size_t bytes); /* used for vendor specific post processing of cell data */ typedef int (*nvmem_cell_post_process_t)(void *priv, const char *id, int index, - unsigned int offset, void *buf, size_t bytes); + unsigned int offset, void *buf, + size_t bytes); enum nvmem_type { NVMEM_TYPE_UNKNOWN = 0, @@ -56,6 +57,7 @@ struct nvmem_keepout { * @np: Optional device_node pointer. * @read_post_process: Callback for optional post processing of cell data * on reads. + * @priv: Opaque data passed to the read_post_process hook. */ struct nvmem_cell_info { const char *name; @@ -65,6 +67,7 @@ struct nvmem_cell_info { unsigned int nbits; struct device_node *np; nvmem_cell_post_process_t read_post_process; + void *priv; }; /**