Message ID | 20190913114550.956-7-alexandru.ardelean@analog.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show
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Fri, 13 Sep 2019 01:46:20 -0700 Received: from saturn.ad.analog.com (10.48.65.123) by NWD2HUBCAS7.ad.analog.com (10.64.69.107) with Microsoft SMTP Server id 14.3.408.0; Fri, 13 Sep 2019 04:46:24 -0400 From: Alexandru Ardelean <alexandru.ardelean@analog.com> To: <linux-spi@vger.kernel.org>, <linux-iio@vger.kernel.org>, <linux-arm-kernel@lists.infradead.org>, <linux-tegra@vger.kernel.org>, <linux-kernel@vger.kernel.org>, <bcm-kernel-feedback-list@broadcom.com> CC: <jic23@kernel.org>, <broonie@kernel.org>, <f.fainelli@gmail.com>, <linus.walleij@linaro.org>, <orsonzhai@gmail.com>, <baolin.wang@linaro.org>, <zhang.lyra@gmail.com>, Alexandru Ardelean <alexandru.ardelean@analog.com> Subject: [RFC PATCH 06/15] spi: orion: use new `word_delay` field for SPI transfers Date: Fri, 13 Sep 2019 14:45:41 +0300 Message-ID: <20190913114550.956-7-alexandru.ardelean@analog.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190913114550.956-1-alexandru.ardelean@analog.com> References: <20190913114550.956-1-alexandru.ardelean@analog.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ADIRoutedOnPrem: True X-EOPAttributedMessage: 0 X-MS-Office365-Filtering-HT: Tenant X-Forefront-Antispam-Report: CIP:137.71.25.57;IPV:NLI;CTRY:US;EFV:NLI;SFV:NSPM;SFS:(10009020)(39860400002)(136003)(346002)(396003)(376002)(199004)(189003)(54906003)(50466002)(186003)(50226002)(8676002)(11346002)(107886003)(446003)(47776003)(36756003)(48376002)(4326008)(356004)(70586007)(6666004)(70206006)(2906002)(7696005)(486006)(5660300002)(8936002)(44832011)(336012)(316002)(86362001)(51416003)(26005)(2616005)(2201001)(246002)(7636002)(478600001)(110136005)(106002)(426003)(1076003)(7416002)(305945005)(476003)(126002)(2870700001)(76176011)(81973001)(2101003);DIR:OUT;SFP:1101;SCL:1;SRVR:BN8PR03MB5058;H:nwd2mta2.analog.com;FPR:;SPF:Pass;LANG:en;PTR:nwd2mail11.analog.com;A:1;MX:1; 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Series |
Unify SPI delays into an `struct spi_delay`
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expand
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diff --git a/drivers/spi/spi-orion.c b/drivers/spi/spi-orion.c index 6643ccdc2508..756c37e32dfe 100644 --- a/drivers/spi/spi-orion.c +++ b/drivers/spi/spi-orion.c @@ -467,8 +467,7 @@ orion_spi_write_read(struct spi_device *spi, struct spi_transfer *xfer) if (orion_spi_write_read_8bit(spi, &tx, &rx) < 0) goto out; count--; - if (xfer->word_delay_usecs) - udelay(xfer->word_delay_usecs); + spi_delay_exec(&xfer->word_delay, xfer); } while (count); } else if (word_len == 16) { const u16 *tx = xfer->tx_buf; @@ -478,8 +477,7 @@ orion_spi_write_read(struct spi_device *spi, struct spi_transfer *xfer) if (orion_spi_write_read_16bit(spi, &tx, &rx) < 0) goto out; count -= 2; - if (xfer->word_delay_usecs) - udelay(xfer->word_delay_usecs); + spi_delay_exec(&xfer->word_delay, xfer); } while (count); }
The `word_delay` field had it's type changed to `struct spi_delay`. This allows users to specify nano-second or clock-cycle delays (if needed). Converting to use `word_delay` is straightforward: it just uses the new `spi_delay_exec()` routine, that handles the `unit` part. Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> --- drivers/spi/spi-orion.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)