From patchwork Wed Mar 8 15:31:54 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Miquel Raynal X-Patchwork-Id: 660765 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8DA06C64EC4 for ; Wed, 8 Mar 2023 15:33:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232273AbjCHPdf (ORCPT ); Wed, 8 Mar 2023 10:33:35 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51384 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232215AbjCHPc4 (ORCPT ); Wed, 8 Mar 2023 10:32:56 -0500 Received: from relay9-d.mail.gandi.net (relay9-d.mail.gandi.net [217.70.183.199]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CD61D5D24B; Wed, 8 Mar 2023 07:32:29 -0800 (PST) Received: (Authenticated sender: miquel.raynal@bootlin.com) by mail.gandi.net (Postfix) with ESMTPSA id 19777FF80C; Wed, 8 Mar 2023 15:32:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1678289548; 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=+8KBJRUvcteGrcXB2dPcvKQXMIPPTo96B4W8ORMytWg=; b=UXr4mxc1WU2zTuHUxkiT/b+F/1Sm4X8kCt2rAXYFwnBjQ/Hyf6T0CnzLDuuFBgIHE4sw/M 0t9tX4L/SGZE10HfBJlbeLiqAcpp0lwC8qvYknzOOKLUql0Yl1xohknLVaIuGI09j0S31E zwOREGgvVF1ULdl4t2bnOQki5Ltd3sAJq6r1QOghNUzjEmizj9FSwLDnjWC4OuKlzbo4v3 QwinXMOPkj80IWcb0eNPwHuAP29M7UpE7OAt4FIKqhW0TZxHy17DJdfxfuF5SwhR4JTUmE zaTsAjZRW/QUPzuj0ftfSGz8o8rH05A//HMPNkjUmUmFs5cziMbmEs3L3PE9Pg== From: Miquel Raynal To: Srinivas Kandagatla , Cc: Greg Kroah-Hartman , Michael Walle , =?utf-8?b?UmFmYcWCIE1pxYJlY2tp?= , Robert Marko , Luka Perkov , Thomas Petazzoni , Rob Herring , Frank Rowand , devicetree@vger.kernel.org, Miquel Raynal Subject: [PATCH v3 14/20] nvmem: imx-ocotp: replace global post processing with layouts Date: Wed, 8 Mar 2023 16:31:54 +0100 Message-Id: <20230308153200.682248-15-miquel.raynal@bootlin.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230308153200.682248-1-miquel.raynal@bootlin.com> References: <20230308153200.682248-1-miquel.raynal@bootlin.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: Michael Walle In preparation of retiring the global post processing hook change this driver to use layouts. The layout will be supplied during registration and will be used to add the post processing hook to all added cells. Signed-off-by: Michael Walle Tested-by: Michael Walle # on kontron-pitx-imx8m Signed-off-by: Miquel Raynal --- drivers/nvmem/imx-ocotp.c | 30 +++++++++++++++++++----------- 1 file changed, 19 insertions(+), 11 deletions(-) diff --git a/drivers/nvmem/imx-ocotp.c b/drivers/nvmem/imx-ocotp.c index e9b52ecb3f72..ac0edb6398f1 100644 --- a/drivers/nvmem/imx-ocotp.c +++ b/drivers/nvmem/imx-ocotp.c @@ -225,18 +225,13 @@ static int imx_ocotp_read(void *context, unsigned int offset, static int imx_ocotp_cell_pp(void *context, const char *id, int index, unsigned int offset, void *data, size_t bytes) { - struct ocotp_priv *priv = context; + u8 *buf = data; + int i; /* Deal with some post processing of nvmem cell data */ - if (id && !strcmp(id, "mac-address")) { - if (priv->params->reverse_mac_address) { - u8 *buf = data; - int i; - - for (i = 0; i < bytes/2; i++) - swap(buf[i], buf[bytes - i - 1]); - } - } + if (id && !strcmp(id, "mac-address")) + for (i = 0; i < bytes / 2; i++) + swap(buf[i], buf[bytes - i - 1]); return 0; } @@ -488,7 +483,6 @@ static struct nvmem_config imx_ocotp_nvmem_config = { .stride = 1, .reg_read = imx_ocotp_read, .reg_write = imx_ocotp_write, - .cell_post_process = imx_ocotp_cell_pp, }; static const struct ocotp_params imx6q_params = { @@ -595,6 +589,17 @@ static const struct of_device_id imx_ocotp_dt_ids[] = { }; MODULE_DEVICE_TABLE(of, imx_ocotp_dt_ids); +static void imx_ocotp_fixup_cell_info(struct nvmem_device *nvmem, + struct nvmem_layout *layout, + struct nvmem_cell_info *cell) +{ + cell->read_post_process = imx_ocotp_cell_pp; +} + +struct nvmem_layout imx_ocotp_layout = { + .fixup_cell_info = imx_ocotp_fixup_cell_info, +}; + static int imx_ocotp_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -619,6 +624,9 @@ static int imx_ocotp_probe(struct platform_device *pdev) imx_ocotp_nvmem_config.size = 4 * priv->params->nregs; imx_ocotp_nvmem_config.dev = dev; imx_ocotp_nvmem_config.priv = priv; + if (priv->params->reverse_mac_address) + imx_ocotp_nvmem_config.layout = &imx_ocotp_layout; + priv->config = &imx_ocotp_nvmem_config; clk_prepare_enable(priv->clk);