linux-kernel - [PATCH] spi_topcliff_pch: supports a spi mode setup and bit order setup by IO control

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Message-Id: <1311141414-12867-1-git-send-email-toshiharu-linux@dsn.okisemi.com>
Date:	Wed, 20 Jul 2011 14:56:54 +0900
From:	Toshiharu Okada <toshiharu-linux@....okisemi.com>
To:	grant.likely@...retlab.ca, spi-devel-general@...ts.sourceforge.net,
	linux-kernel@...r.kernel.org
Cc:	qi.wang@...el.com, yong.y.wang@...el.com, joel.clark@...el.com,
	kok.howg.ewe@...el.com, tomoya-linux@....okisemi.com,
	Toshiharu Okada <toshiharu-linux@....okisemi.com>
Subject: [PATCH] spi_topcliff_pch: supports a spi mode setup and bit order setup by IO control

This patch supports a spi mode setup and bit order setup by IO control.
    spi mode:     mode 0 to mode 3
    bit order:    LSB first, MSB first

Signed-off-by: Toshiharu Okada <toshiharu-linux@....okisemi.com>
---
 drivers/spi/spi_topcliff_pch.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/spi/spi_topcliff_pch.c b/drivers/spi/spi_topcliff_pch.c
index 79e48d4..dec83c9 100644
--- a/drivers/spi/spi_topcliff_pch.c
+++ b/drivers/spi/spi_topcliff_pch.c
@@ -1038,6 +1038,7 @@ static int pch_spi_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	master->num_chipselect = PCH_MAX_CS;
 	master->setup = pch_spi_setup;
 	master->transfer = pch_spi_transfer;
+	master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_LSB_FIRST;
 	dev_dbg(&pdev->dev,
 		"%s transfer member of SPI master initialized\n", __func__);
 
-- 
1.7.4.4

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