From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Fri, 15 Nov 2024 20:58:44 +0100 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 1tC2So-002N7z-2H for lore@lore.pengutronix.de; Fri, 15 Nov 2024 20:58:44 +0100 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 1tC2Sl-0001lH-W8 for lore@pengutronix.de; Fri, 15 Nov 2024 20:58:42 +0100 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:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To: Cc:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=Gqi2QwnRNq6sbhoMyR9OYnKMY9DGJ89iffP0sSvUx2Y=; b=AZEkQGAJL3PQGc2CAuGDhcmb1f b7yR3JgQpLQFHbJJ1ED0KGRQvcTVlZzT3poJAQ4f3qCkXoEvCDh/GuTc43oJ65EeDimqcxaNeLZBq jjE4ldTNw/McjIWVe5xuXb+iF8toub6Ko+e+obX/bdniXAkNC0sd1GOidTolyjXA5n8tXXEjeh2qQ DGw710ycSSeoEbjO++MqznSUXNI4PkMHv2Tpq2Otwsq6W5ltNDHHEnYBpZkqxTy3Pk7z0W4AxR8n6 IrCLMNPaA3RvMoOo83kLrm6pvSiFWEH/He01Bto047mGhx2fA3I4OkTo8gG3cnxcxFDkm74YFuq/Z an6qbY8w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tC2SD-00000003wdz-0nSM; Fri, 15 Nov 2024 19:58:05 +0000 Received: from desiato.infradead.org ([2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tC2SC-00000003wcx-0atr for barebox@bombadil.infradead.org; Fri, 15 Nov 2024 19:58:04 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=Content-Transfer-Encoding:MIME-Version :References:In-Reply-To:Message-Id:Date:Subject:To:From:Sender:Reply-To:Cc: Content-Type:Content-ID:Content-Description; bh=Gqi2QwnRNq6sbhoMyR9OYnKMY9DGJ89iffP0sSvUx2Y=; b=PaTzrtTzZDz9uN2my9q6wA/AbJ /qFgiLA6ri1MtXCvbLueYWjVkaaIQk+ScNsMIFr+kyWuSbXsf87yMo+ehzD5HZl0+WTemQMvFG+js KCyQPCMzOzS7z3k/X37z2pXZJ2uXAz+J7XQdGebqTDYTTDvPmLSu5/1aPsoVTFEJGydTTJjjmHKcE lAlfPq1fWKIssR1hVDR49TNGXAyF+Kw8qsWC1mplmvGv5HF+NzkHrxBLKoMhNw0DFMkg4WnZ5u51G bWvw2EBeiLjNCMzFrwdM7LjQ16bo+mW1onrEBL0pDz3Lob7Pwb1nTLJFUPd4eVVaq+b33oM6TSTCQ XyAqqdhA==; Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by desiato.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tC2S8-00000000Jag-0u2D for barebox@lists.infradead.org; Fri, 15 Nov 2024 19:58:03 +0000 Received: from dude02.red.stw.pengutronix.de ([2a0a:edc0:0:1101:1d::28]) by metis.whiteo.stw.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1tC2S1-00017y-OV for barebox@lists.infradead.org; Fri, 15 Nov 2024 20:57:53 +0100 From: Marco Felsch To: barebox@lists.infradead.org Date: Fri, 15 Nov 2024 20:57:45 +0100 Message-Id: <20241115195747.997164-10-m.felsch@pengutronix.de> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20241115195747.997164-1-m.felsch@pengutronix.de> References: <20241115195747.997164-1-m.felsch@pengutronix.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241115_195800_433599_80AB6185 X-CRM114-Status: GOOD ( 12.48 ) 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=-5.2 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH 10/12] spi: add support for spi_controller::set_cs_timing 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) Import the spi_controller set_cs_timing() hook to make it easier to port code from the Linux. Signed-off-by: Marco Felsch --- include/spi/spi.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/include/spi/spi.h b/include/spi/spi.h index 8354b7d8baa6..092eacd4a8e1 100644 --- a/include/spi/spi.h +++ b/include/spi/spi.h @@ -179,6 +179,9 @@ static inline void spi_set_ctldata(struct spi_device *spi, void *state) * must fail if an unrecognized or unsupported mode is requested. * It's always safe to call this unless transfers are pending on * the device whose settings are being modified. + * @set_cs_timing: optional hook for SPI devices to request SPI master + * controller for configuring specific CS setup time, hold time and inactive + * delay interms of clock counts * @transfer: adds a message to the controller's transfer queue. * @cleanup: frees controller-specific state * @cs_gpiods: Array of GPIO descriptors to use as chip select lines; one per CS @@ -246,6 +249,16 @@ struct spi_controller { /* setup mode and clock, etc (spi driver may call many times) */ int (*setup)(struct spi_device *spi); + /* + * set_cs_timing() method is for SPI controllers that supports + * configuring CS timing. + * + * This hook allows SPI client drivers to request SPI controllers + * to configure specific CS timing through spi_set_cs_timing() after + * spi_setup(). + */ + int (*set_cs_timing)(struct spi_device *spi); + /* bidirectional bulk transfers * * + The transfer() method may not sleep; its main role is -- 2.39.5