From: Sascha Hauer <s.hauer-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
To: linux-spi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
Mark Brown <broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Anton Bondarenko
<anton.bondarenko.sama-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
Sascha Hauer <s.hauer-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
Subject: [PATCH 09/12] spi: imx: remove unnecessary bit clearing in mx51_ecspi_config
Date: Fri, 19 Feb 2016 08:43:09 +0100 [thread overview]
Message-ID: <1455867792-26389-10-git-send-email-s.hauer@pengutronix.de> (raw)
In-Reply-To: <1455867792-26389-1-git-send-email-s.hauer-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
This reverts patch 1476253cef (spi: imx: fix ecspi mode setup)
The patch tried to fix something by clearing bits in the cfg variable,
but cfg is initialized to zero on function entry. There are no bits to
clear.
Signed-off-by: Sascha Hauer <s.hauer-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
---
drivers/spi/spi-imx.c | 7 -------
1 file changed, 7 deletions(-)
diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c
index 6a0e004..2476de7 100644
--- a/drivers/spi/spi-imx.c
+++ b/drivers/spi/spi-imx.c
@@ -366,20 +366,13 @@ static int __maybe_unused mx51_ecspi_config(struct spi_imx_data *spi_imx,
if (config->mode & SPI_CPHA)
cfg |= MX51_ECSPI_CONFIG_SCLKPHA(config->cs);
- else
- cfg &= ~MX51_ECSPI_CONFIG_SCLKPHA(config->cs);
if (config->mode & SPI_CPOL) {
cfg |= MX51_ECSPI_CONFIG_SCLKPOL(config->cs);
cfg |= MX51_ECSPI_CONFIG_SCLKCTL(config->cs);
- } else {
- cfg &= ~MX51_ECSPI_CONFIG_SCLKPOL(config->cs);
- cfg &= ~MX51_ECSPI_CONFIG_SCLKCTL(config->cs);
}
if (config->mode & SPI_CS_HIGH)
cfg |= MX51_ECSPI_CONFIG_SSBPOL(config->cs);
- else
- cfg &= ~MX51_ECSPI_CONFIG_SSBPOL(config->cs);
/* CTRL register always go first to bring out controller from reset */
writel(ctrl, spi_imx->base + MX51_ECSPI_CTRL);
--
2.7.0
--
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next prev parent reply other threads:[~2016-02-19 7:43 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-19 7:43 [PATCH v2] i.MX SPI DMA cleanup Sascha Hauer
[not found] ` <1455867792-26389-1-git-send-email-s.hauer-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2016-02-19 7:43 ` [PATCH 01/12] spi: imx: allow only WML aligned transfers to use DMA Sascha Hauer
2016-02-19 7:43 ` [PATCH 02/12] spi: imx: use proper dev_* functions for driver messages Sascha Hauer
2016-02-19 7:43 ` [PATCH 03/12] spi: imx: replace fixed timeout with calculated Sascha Hauer
2016-02-19 7:43 ` [PATCH 04/12] spi: imx: drop fallback to PIO Sascha Hauer
[not found] ` <1455867792-26389-5-git-send-email-s.hauer-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2016-02-19 15:51 ` Mark Brown
2016-02-19 7:43 ` [PATCH 05/12] spi: imx: initialize usedma earlier Sascha Hauer
[not found] ` <1455867792-26389-6-git-send-email-s.hauer-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2016-02-19 8:08 ` Lothar Waßmann
2016-02-19 7:43 ` [PATCH 06/12] spi: imx: drop unnecessary read/modify/write Sascha Hauer
2016-02-19 7:43 ` [PATCH 07/12] spi: imx: drop unncessary dma_is_inited variable Sascha Hauer
2016-02-19 7:43 ` [PATCH 08/12] spi: imx: add support for all SPI word width for DMA Sascha Hauer
2016-02-19 7:43 ` Sascha Hauer [this message]
2016-02-19 7:43 ` [PATCH 10/12] spi: imx: make some register defines simpler Sascha Hauer
2016-02-19 7:43 ` [PATCH 11/12] spi: imx: set MX51_ECSPI_CTRL_SMC bit in setup function Sascha Hauer
2016-02-19 7:43 ` [PATCH 12/12] spi: imx: drop bogus tests for rx/tx bufs in DMA transfer Sascha Hauer
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