spi: davinci spi driver

From: Sandeep Paulraj <[email protected]>

The patch adds a SPI driver for DaVinci series SOC's.

[[email protected]: fixes and cleanup]

---
 arch/arm/mach-davinci/include/mach/spi.h |   45 +
 drivers/spi/Kconfig                      |    7 
 drivers/spi/Makefile                     |    1 
 drivers/spi/davinci_spi.c                |  757 +++++++++++++++++++++++++++++
 drivers/spi/davinci_spi.h                |  163 ++++++
 5 files changed, 973 insertions(+)

@@ -0,0 +1,45 @@
+/*
+ * Copyright 2009 Texas Instruments.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef __ARCH_ARM_DAVINCI_SPI_H
+#define __ARCH_ARM_DAVINCI_SPI_H
+
+#define SPI_INTERN_CS	0xFF
+
+enum {
+	SPI_VERSION_1, /* For DM355/DM365/DM6467*/
+	SPI_VERSION_2, /* For DA8xx */
+};
+
+struct davinci_spi_platform_data {
+	u8	version;
+	u16	num_chipselect;
+	u32	wdelay;
+	u32	odd_parity;
+	u32	parity_enable;
+	u32	wait_enable;
+	u32	timer_disable;
+	u32	clk_internal;
+	u32	cs_hold;
+	u32	intr_level;
+	u32	poll_mode;
+	u8	c2tdelay;
+	u8	t2cdelay;
+};
+
+#endif	/* __ARCH_ARM_DAVINCI_SPI_H */

@@ -77,6 +77,13 @@ config SPI_AU1550
 	  This driver can also be built as a module.  If so, the module
 	  will be called au1550_spi.
 
+config SPI_DAVINCI
+	tristate "SPI controller driver for DaVinci/DA8xx SoC's"
+	depends on SPI_MASTER && ARCH_DAVINCI
+	select SPI_BITBANG
+	help
+	  SPI master controller for DaVinci and DA8xx SPI modules.
+
 config SPI_BITBANG
 	tristate "Utilities for Bitbanging SPI masters"
 	help

@@ -16,6 +16,7 @@ obj-$(CONFIG_SPI_BFIN)			+= spi_bfin5xx.
 obj-$(CONFIG_SPI_BITBANG)		+= spi_bitbang.o
 obj-$(CONFIG_SPI_AU1550)		+= au1550_spi.o
 obj-$(CONFIG_SPI_BUTTERFLY)		+= spi_butterfly.o
+obj-$(CONFIG_SPI_DAVINCI)		+= davinci_spi.o
 obj-$(CONFIG_SPI_GPIO)			+= spi_gpio.o
 obj-$(CONFIG_SPI_IMX)			+= mxc_spi.o
 obj-$(CONFIG_SPI_LM70_LLP)		+= spi_lm70llp.o

Hello.

This patch lacks MV people's signoffs (and MV copyright on the driver).

WBR, Sergei

-ENOPATCH

I don't recall seeing any version with MV attributions, FWIW.

Hello.

Because there was none. :-)
I have just mailed Sandeep about this yesterday.

WBR, Sergei

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Sergei, Dave,

When i started this SPI process many moons ago, i am absolutely sure that i sent out e-mails on our internal TI MV mailing list asking for the appropriate signoffs. I can dig out the e-mails but i don't see what can be achieved on doing that. I did not get any responses then.

Obviously that time the driver was not ready for submission and now seems an auspicious time.

I'll take care of all pending issues, i.e signoffs, copyright(which as pointed out was not present in the original driver) and send the patch.

Thanks,
Sandeep

________________________________________
From: davinci-linux-open-source-bounces-VycZQUHpC/PFrsHnngEfi1aTQe2KTcn/@public.gmane.org [davinci-linux-open-source-bounces-VycZQUHpC/PFrsHnngEfi1aTQe2KTcn/@public.gmane.org] On Behalf Of Sergei Shtylyov [[email protected]]
Sent: Friday, August 28, 2009 6:09 AM
To: David Brownell
Cc: spi-devel-general-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org; Andrew Morton; DaVinci
Subject: Re: [patch 2.6.31-rc7] spi: davinci spi driver

Hello.

Because there was none. :-)
I have just mailed Sandeep about this yesterday.

WBR, Sergei

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