From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Wed, 25 Sep 2024 16:10:27 +0200 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1stSio-002cTC-0w for lore@lore.pengutronix.de; Wed, 25 Sep 2024 16:10:27 +0200 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1stSio-0004cZ-P2 for lore@pengutronix.de; Wed, 25 Sep 2024 16:10:27 +0200 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:To:In-Reply-To:References: Message-Id:Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date: From:Reply-To:Cc:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=UDCeUS8Ak06RhW5sXSCsQ2gGfoE9KX6Ye4yn4pBWAgs=; b=MR4xNMBLjTDqyQLPnA1vVw1gWW XRyJLFh/ywB4tCszL49rONwNTMYNop33wc3J1by9CueOqJZglI5VEGDBZxKlBBP1gT80qyVNo3E0+ e/trE4pQlx0GkIZa4ijZ6xzzdeGtdPwfcyY/YKhmmkMxtZ1G3GFcn2FJbwLI2h42BzOHTyeZtzmh3 di1tPuQ5Fy3dltfOBg3qMWrMfHFdVA3L3nbEtOcdRJgcQr0vvxiEEjXMVr/459M9s+OCd0V97iDv2 ndXn6fDejiMkE/DcNuBDs8MzK95K8fJNYiuDkJFG4xSbyXGUwYANnuagpzeVbrTztGoq/STYhk5Qa kd5emLtA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1stSiP-00000005Xyu-1sa3; Wed, 25 Sep 2024 14:10:01 +0000 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1stSfE-00000005XD8-0KsE for barebox@lists.infradead.org; Wed, 25 Sep 2024 14:06:45 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1stSf4-0003zZ-Tm; Wed, 25 Sep 2024 16:06:34 +0200 Received: from [2a0a:edc0:0:1101:1d::28] (helo=dude02.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1stSf4-001Ssf-Fu; Wed, 25 Sep 2024 16:06:34 +0200 Received: from localhost ([::1] helo=dude02.red.stw.pengutronix.de) by dude02.red.stw.pengutronix.de with esmtp (Exim 4.96) (envelope-from ) id 1stSf4-00DDhp-2r; Wed, 25 Sep 2024 16:06:34 +0200 From: Sascha Hauer Date: Wed, 25 Sep 2024 16:06:32 +0200 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20240925-spi-gpio-v1-1-47f6285b3bf1@pengutronix.de> References: <20240925-spi-gpio-v1-0-47f6285b3bf1@pengutronix.de> In-Reply-To: <20240925-spi-gpio-v1-0-47f6285b3bf1@pengutronix.de> To: "open list:BAREBOX" X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1727273194; l=757; i=s.hauer@pengutronix.de; s=20230412; h=from:subject:message-id; bh=wLjqKS+KEQIe9/lDHlcQ1Vt5NJOvq3XQfWM80ZrE3yc=; b=83KIFY6vXfM6Zeus1HtCA2NcPRXWzf6YwDV8eno6ZfUH7kjRHxxlM3pF0HiIB2OXxtuiSKe9M pKBO3TYnAs/BYB6ukvy8MifP4fI4XcayDUELXCfSbzhWwNjKd7tIWYM X-Developer-Key: i=s.hauer@pengutronix.de; a=ed25519; pk=4kuc9ocmECiBJKWxYgqyhtZOHj5AWi7+d0n/UjhkwTg= X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240925_070644_152724_57C1A592 X-CRM114-Status: GOOD ( 10.10 ) X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.whiteo.stw.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-4.0 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH 1/3] spi: spi-gpio: actually delay in spidelay() X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.whiteo.stw.pengutronix.de) spidelay() currently only is a no-op dummy function. Actually delay in this function to avoid spi-gpio being faster than specified. Signed-off-by: Sascha Hauer --- drivers/spi/gpio_spi.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/spi/gpio_spi.c b/drivers/spi/gpio_spi.c index e5664df3fe..a71b4eddab 100644 --- a/drivers/spi/gpio_spi.c +++ b/drivers/spi/gpio_spi.c @@ -48,7 +48,10 @@ static inline int getmiso(const struct spi_device *spi) return !!gpio_get_value(priv->data->miso); } -#define spidelay(nsecs) do { } while (0) +static inline void spidelay(unsigned int nsecs) +{ + udelay(max(1U, nsecs / 1000)); +} #include "spi-bitbang-txrx.h" -- 2.39.5