From patchwork Fri Oct 25 16:14:44 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Miquel Raynal X-Patchwork-Id: 838701 Received: from relay4-d.mail.gandi.net (relay4-d.mail.gandi.net [217.70.183.196]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0F62B1CC8AB for ; Fri, 25 Oct 2024 16:15:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.70.183.196 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729872915; cv=none; b=OsNxtaNyV6Po/rY4iQAgJMFEMkJt5iIj4Q+ErUYo2nOFNVcCTKLrG2DgRzRB0q7OG5RXap1KM94ClaeVrPfrV8YAlDZaq8MzSjGEW8X1XSg7nBNfRFz09nzVzmA+absQbN1BExCtsu6D8vWYTlvwOipMn3xtcKnKw3H5cdzuhrw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729872915; c=relaxed/simple; bh=FO5EPi1d78JOdoXrM4h+q6R0z5UN3IpplagzlNTgU2I=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Ny3AvCXxjwvYYd2ezHRLw/5yG6Qilm6GN2FkKPzJqvvZGnzXnBn5rJEfMNUPtoTnxb+FK87HCDni7U9SZZSNCPm+fSuysCf67ZdpACaieaOUP9Em+QMVRIDXCX2LTiNEBiEtkhbY8xTU11cwdwL7sycgJ9s/G4JvuzVnHNCnLP8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com; spf=pass smtp.mailfrom=bootlin.com; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b=cbHiZgR+; arc=none smtp.client-ip=217.70.183.196 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bootlin.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="cbHiZgR+" Received: by mail.gandi.net (Postfix) with ESMTPSA id 77A83E000C; Fri, 25 Oct 2024 16:15:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1729872911; 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=EfhqxAS164vg4hu2rhFqymgBKF09/+06swQixk+O+Fc=; b=cbHiZgR+9ODTHtLHjYGMhyiHXbZFFvHwNsCm1TQPODPUZDkJtbT5iMhXbDIiIpXFbDLwAe VTN9LtmvBAQI4y2c4uIAJByP3keRrx2H9RzCV+qZs2PJhAkMBOq8HECvjqd94pI3/6qNWd ub8qHXBNIflwnLI23SqMBK9QZvkNLL0E82gPr7g21QeUhuWHXHiHfQkp8mJq0Jm1m+l5rT ikMmd7Y/KrilUFauJBoL9OovLukNg4ag5UhIsQPvGkFUo7JgrW4pF0mSZpwjUr81gpO/+g sXSGpQoadtEdFENN/p2YlM10Qf4Ctl5wAEmT2CC7rngjmt4Z1EKEctT32TVbTg== From: Miquel Raynal To: Richard Weinberger , Vignesh Raghavendra , Tudor Ambarus , Pratyush Yadav , Michael Walle , Cc: Mark Brown , , Steam Lin , Thomas Petazzoni , Sanjay R Mehta , Han Xu , Conor Dooley , Daire McNamara , Matthias Brugger , AngeloGioacchino Del Regno , Haibo Chen , Yogesh Gaur , Heiko Stuebner , Michal Simek , Miquel Raynal Subject: [PATCH 07/24] spi: fsl-qspi: Support per spi-mem operation frequency switches Date: Fri, 25 Oct 2024 18:14:44 +0200 Message-ID: <20241025161501.485684-8-miquel.raynal@bootlin.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241025161501.485684-1-miquel.raynal@bootlin.com> References: <20241025161501.485684-1-miquel.raynal@bootlin.com> Precedence: bulk X-Mailing-List: linux-spi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-GND-Sasl: miquel.raynal@bootlin.com Every ->exec_op() call correctly configures the spi bus speed to the maximum allowed frequency for the memory using the constant spi default parameter. Since we can now have per-operation constraints, let's use the value that comes from the spi-mem operation structure instead. In case there is no specific limitation for this operation, the default spi device value will be given anyway. The per-operation frequency capability is thus advertised to the spi-mem core. Cc: Han Xu Signed-off-by: Miquel Raynal --- drivers/spi/spi-fsl-qspi.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/drivers/spi/spi-fsl-qspi.c b/drivers/spi/spi-fsl-qspi.c index 79bac30e79af..ce86f44b0e93 100644 --- a/drivers/spi/spi-fsl-qspi.c +++ b/drivers/spi/spi-fsl-qspi.c @@ -522,9 +522,10 @@ static void fsl_qspi_invalidate(struct fsl_qspi *q) qspi_writel(q, reg, q->iobase + QUADSPI_MCR); } -static void fsl_qspi_select_mem(struct fsl_qspi *q, struct spi_device *spi) +static void fsl_qspi_select_mem(struct fsl_qspi *q, struct spi_device *spi, + const struct spi_mem_op *op) { - unsigned long rate = spi->max_speed_hz; + unsigned long rate = op->max_freq; int ret; if (q->selected == spi_get_chipselect(spi, 0)) @@ -652,7 +653,7 @@ static int fsl_qspi_exec_op(struct spi_mem *mem, const struct spi_mem_op *op) fsl_qspi_readl_poll_tout(q, base + QUADSPI_SR, (QUADSPI_SR_IP_ACC_MASK | QUADSPI_SR_AHB_ACC_MASK), 10, 1000); - fsl_qspi_select_mem(q, mem->spi); + fsl_qspi_select_mem(q, mem->spi, op); if (needs_amba_base_offset(q)) addr_offset = q->memmap_phy; @@ -839,6 +840,10 @@ static const struct spi_controller_mem_ops fsl_qspi_mem_ops = { .get_name = fsl_qspi_get_name, }; +static const struct spi_controller_mem_caps fsl_qspi_mem_caps = { + .per_op_freq = true, +}; + static int fsl_qspi_probe(struct platform_device *pdev) { struct spi_controller *ctlr; @@ -923,6 +928,7 @@ static int fsl_qspi_probe(struct platform_device *pdev) ctlr->bus_num = -1; ctlr->num_chipselect = 4; ctlr->mem_ops = &fsl_qspi_mem_ops; + ctlr->mem_caps = &fsl_qspi_mem_caps; fsl_qspi_default_setup(q);