From patchwork Fri Sep 15 08:11:02 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikita Shubin via B4 Relay X-Patchwork-Id: 13386501 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 98DF9EE6446 for ; Fri, 15 Sep 2023 08:12:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233066AbjIOIMz (ORCPT ); Fri, 15 Sep 2023 04:12:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57070 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232963AbjIOIMc (ORCPT ); Fri, 15 Sep 2023 04:12:32 -0400 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CA0D3272B; Fri, 15 Sep 2023 01:12:12 -0700 (PDT) Received: by smtp.kernel.org (Postfix) with ESMTPS id 52C52C116AD; Fri, 15 Sep 2023 08:12:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1694765529; bh=pQAR+pyrK4gN3o3XWt9qgN/Bx9cfFrie8nL4VUM8QyM=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=ArszYI/gtmwOifQee10g5NwrcMd7GFDVPp9M+3vfLo8tJ+wtJ0F0+kbEyZ1gFPz2t WFlie3Wfmoe2NcdOYkpHgqNr0Ldm3/vYDGcKRQIggY4KYi/wnSCYppzk2AQyrDNngP 42DERHk3N7xe/5nSmogYE4FhKKji6GslY23+x1FQbLDMQ6ywnCWF7Yyru6jCNiFoX+ JtxdQte9r1/4F5yjq4ND9Ukt6YIdS06GxQoDQ2NiNMgYs86Lj7xctXuEkbczLWlWce tMww1/oP7IvCiVwhKaeiF6NcjNhWW3tnbgSSjO8J85V2l9fPGajcS/eo13TzRNk0OJ VPVjJS8xTQcUg== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 41E26EE643C; Fri, 15 Sep 2023 08:12:09 +0000 (UTC) From: Nikita Shubin via B4 Relay Date: Fri, 15 Sep 2023 11:11:02 +0300 Subject: [PATCH v4 20/42] spi: ep93xx: add DT support for Cirrus EP93xx MIME-Version: 1.0 Message-Id: <20230915-ep93xx-v4-20-a1d779dcec10@maquefel.me> References: <20230915-ep93xx-v4-0-a1d779dcec10@maquefel.me> In-Reply-To: <20230915-ep93xx-v4-0-a1d779dcec10@maquefel.me> To: Mark Brown Cc: linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org, Arnd Bergmann , Alexander Sverdlin X-Mailer: b4 0.13-dev-e3e53 X-Developer-Signature: v=1; a=ed25519-sha256; t=1694765525; l=2702; i=nikita.shubin@maquefel.me; s=20230718; h=from:subject:message-id; bh=ZWn5JZLALLuK4G847aw+YC2k8LjRei15o646pYI1xGQ=; =?utf-8?q?b=3DVKuO2C7qqnye?= =?utf-8?q?xAG+u0v3ihHQPeM3GpjzYwML0vh5RImwhqpNidBkpO19Zr6afoPhy3CgGrNhI8x6?= TRiy+d7QBMwum8/bwpdMp672/UeEibNZuKKC+CV9kx5RpHfG9mCG X-Developer-Key: i=nikita.shubin@maquefel.me; a=ed25519; pk=vqf5YIUJ7BJv3EJFaNNxWZgGuMgDH6rwufTLflwU9ac= X-Endpoint-Received: by B4 Relay for nikita.shubin@maquefel.me/20230718 with auth_id=65 X-Original-From: Nikita Shubin Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org From: Nikita Shubin - add OF ID match table Instead of platform use_dma flag - check if DT dmas property is present to decide to use dma ot not. Reviewed-by: Linus Walleij Tested-by: Alexander Sverdlin Acked-by: Alexander Sverdlin Signed-off-by: Nikita Shubin Reviewed-by: Mark Brown --- drivers/spi/spi-ep93xx.c | 28 +++++++++++++++++++++++++++- 1 file changed, 27 insertions(+), 1 deletion(-) diff --git a/drivers/spi/spi-ep93xx.c b/drivers/spi/spi-ep93xx.c index 1615fd22f9a2..f93cd506bf17 100644 --- a/drivers/spi/spi-ep93xx.c +++ b/drivers/spi/spi-ep93xx.c @@ -22,6 +22,7 @@ #include #include #include +#include #include #include #include @@ -644,6 +645,23 @@ static void ep93xx_spi_release_dma(struct ep93xx_spi *espi) free_page((unsigned long)espi->zeropage); } +#ifdef CONFIG_OF +static struct ep93xx_spi_info dt_spi_info; + +static struct ep93xx_spi_info *ep93xx_spi_get_platdata(struct platform_device *pdev) +{ + if (device_property_present(&pdev->dev, "dmas")) + dt_spi_info.use_dma = 1; + + return &dt_spi_info; +} +#else +static struct ep93xx_spi_info *ep93xx_spi_get_platdata(struct platform_device *pdev) +{ + return dev_get_platdata(&pdev->dev); +} +#endif + static int ep93xx_spi_probe(struct platform_device *pdev) { struct spi_master *master; @@ -653,7 +671,7 @@ static int ep93xx_spi_probe(struct platform_device *pdev) int irq; int error; - info = dev_get_platdata(&pdev->dev); + info = ep93xx_spi_get_platdata(pdev); if (!info) { dev_err(&pdev->dev, "missing platform data\n"); return -EINVAL; @@ -726,6 +744,7 @@ static int ep93xx_spi_probe(struct platform_device *pdev) /* make sure that the hardware is disabled */ writel(0, espi->mmio + SSPCR1); + device_set_node(&master->dev, dev_fwnode(&pdev->dev)); error = devm_spi_register_master(&pdev->dev, master); if (error) { dev_err(&pdev->dev, "failed to register SPI master\n"); @@ -753,9 +772,16 @@ static void ep93xx_spi_remove(struct platform_device *pdev) ep93xx_spi_release_dma(espi); } +static const struct of_device_id ep93xx_spi_of_ids[] = { + { .compatible = "cirrus,ep9301-spi" }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, ep93xx_spi_of_ids); + static struct platform_driver ep93xx_spi_driver = { .driver = { .name = "ep93xx-spi", + .of_match_table = ep93xx_spi_of_ids, }, .probe = ep93xx_spi_probe, .remove_new = ep93xx_spi_remove,