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Merge branch 'i2c-for-2630-v2' of git://aeryn.fluff.org.uk/bjdooks/linux

Browse Source 
* 'i2c-for-2630-v2' of git://aeryn.fluff.org.uk/bjdooks/linux:
  i2c: imx: Make disable_delay a per-device variable
  i2c: xtensa s6000 i2c driver
  powerpc/85xx: i2c-mpc: use new I2C bindings for the Socates board
  i2c: i2c-mpc: make I2C bus speed configurable
  i2c: i2c-mpc: use dev based printout function
  i2c: i2c-mpc: various coding style fixes
  i2c: imx: Add missing request_mem_region in probe()
  i2c: i2c-s3c2410: Initialise Samsung I2C controller early
  i2c-s3c2410: Simplify bus frequency calculation
  i2c-s3c2410: sda_delay should be in ns, not clock ticks
  i2c: iMX/MXC support
This commit is contained in:
Linus Torvalds
2009-04-07 08:45:12 -07:00
parent 10a0d91289 65de394df2
commit 0e26da0f22
16 changed files with 1507 additions and 129 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
arch/arm/mach-s3c2410/mach-bast.c
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@@ -409,8 +409,7 @@ static struct platform_device bast_sio = {
static struct s3c2410_platform_i2c __initdata bast_i2c_info = {
.flags = 0,
.slave_addr = 0x10,
.bus_freq = 100*1000,
.max_freq = 130*1000,
.frequency = 100*1000,
};
/* Asix AX88796 10/100 ethernet controller */

3
arch/arm/mach-s3c2410/mach-n30.c
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@@ -340,8 +340,7 @@ static struct platform_device *n35_devices[] __initdata = {
static struct s3c2410_platform_i2c n30_i2ccfg = {
.flags = 0,
.slave_addr = 0x10,
.bus_freq = 10*1000,
.max_freq = 10*1000,
.frequency = 10*1000,
};
/* Lots of hardcoded stuff, but it sets up the hardware in a useful

3
arch/arm/mach-s3c2412/mach-jive.c
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@@ -453,8 +453,7 @@ static struct spi_board_info __initdata jive_spi_devs[] = {
/* I2C bus and device configuration. */
static struct s3c2410_platform_i2c jive_i2c_cfg __initdata = {
.max_freq = 80 * 1000,
.bus_freq = 50 * 1000,
.frequency = 80 * 1000,
.flags = S3C_IICFLG_FILTER,
.sda_delay = 2,
};

25
arch/arm/plat-mxc/include/mach/i2c.h Normal file
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@@ -0,0 +1,25 @@
/*
* i2c.h - i.MX I2C driver header file
*
* Copyright (c) 2008, Darius Augulis <augulis.darius@gmail.com>
*
* This file is released under the GPLv2
*/
#ifndef __ASM_ARCH_I2C_H_
#define __ASM_ARCH_I2C_H_
/**
* struct imxi2c_platform_data - structure of platform data for MXC I2C driver
* @init: Initialise gpio's and other board specific things
* @exit: Free everything initialised by @init
* @bitrate: Bus speed measured in Hz
*
**/
struct imxi2c_platform_data {
int (*init)(struct device *dev);
void (*exit)(struct device *dev);
int bitrate;
};
#endif /* __ASM_ARCH_I2C_H_ */

7
arch/arm/plat-s3c/dev-i2c0.c
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@@ -1,6 +1,6 @@
/* linux/arch/arm/plat-s3c/dev-i2c0.c
*
* Copyright 2008 Simtec Electronics
* Copyright 2008,2009 Simtec Electronics
* Ben Dooks <ben@simtec.co.uk>
* http://armlinux.simtec.co.uk/
*
@@ -50,9 +50,8 @@ struct platform_device s3c_device_i2c0 = {
static struct s3c2410_platform_i2c default_i2c_data0 __initdata = {
.flags = 0,
.slave_addr = 0x10,
.bus_freq = 100*1000,
.max_freq = 400*1000,
.sda_delay = S3C2410_IICLC_SDA_DELAY5 | S3C2410_IICLC_FILTER_ON,
.frequency = 100*1000,
.sda_delay = 100,
};
void __init s3c_i2c0_set_platdata(struct s3c2410_platform_i2c *pd)

7
arch/arm/plat-s3c/dev-i2c1.c
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@@ -1,6 +1,6 @@
/* linux/arch/arm/plat-s3c/dev-i2c1.c
*
* Copyright 2008 Simtec Electronics
* Copyright 2008,2009 Simtec Electronics
* Ben Dooks <ben@simtec.co.uk>
* http://armlinux.simtec.co.uk/
*
@@ -47,9 +47,8 @@ static struct s3c2410_platform_i2c default_i2c_data1 __initdata = {
.flags = 0,
.bus_num = 1,
.slave_addr = 0x10,
.bus_freq = 100*1000,
.max_freq = 400*1000,
.sda_delay = S3C2410_IICLC_SDA_DELAY5 | S3C2410_IICLC_FILTER_ON,
.frequency = 100*1000,
.sda_delay = 100,
};
void __init s3c_i2c1_set_platdata(struct s3c2410_platform_i2c *pd)

33
arch/arm/plat-s3c/include/plat/iic.h
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@@ -1,9 +1,9 @@
/* arch/arm/mach-s3c2410/include/mach/iic.h
/* arch/arm/plat-s3c/include/plat/iic.h
*
* Copyright (c) 2004 Simtec Electronics
* Copyright 2004,2009 Simtec Electronics
* Ben Dooks <ben@simtec.co.uk>
*
* S3C2410 - I2C Controller platfrom_device info
* S3C - I2C Controller platform_device info
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@@ -15,19 +15,24 @@
#define S3C_IICFLG_FILTER (1<<0) /* enable s3c2440 filter */
/* Notes:
* 1) All frequencies are expressed in Hz
* 2) A value of zero is `do not care`
*/
/**
* struct s3c2410_platform_i2c - Platform data for s3c I2C.
* @bus_num: The bus number to use (if possible).
* @flags: Any flags for the I2C bus (E.g. S3C_IICFLK_FILTER).
* @slave_addr: The I2C address for the slave device (if enabled).
* @frequency: The desired frequency in Hz of the bus. This is
* guaranteed to not be exceeded. If the caller does
* not care, use zero and the driver will select a
* useful default.
* @sda_delay: The delay (in ns) applied to SDA edges.
* @cfg_gpio: A callback to configure the pins for I2C operation.
*/
struct s3c2410_platform_i2c {
int bus_num; /* bus number to use */
int bus_num;
unsigned int flags;
unsigned int slave_addr; /* slave address for controller */
unsigned long bus_freq; /* standard bus frequency */
unsigned long max_freq; /* max frequency for the bus */
unsigned long min_freq; /* min frequency for the bus */
unsigned int sda_delay; /* pclks (s3c2440 only) */
unsigned int slave_addr;
unsigned long frequency;
unsigned int sda_delay;
void (*cfg_gpio)(struct platform_device *dev);
};

8
arch/powerpc/boot/dts/socrates.dts
View File

@@ -79,11 +79,11 @@
#address-cells = <1>;
#size-cells = <0>;
cell-index = <0>;
compatible = "fsl-i2c";
compatible = "fsl,mpc8544-i2c", "fsl-i2c";
reg = <0x3000 0x100>;
interrupts = <43 2>;
interrupt-parent = <&mpic>;
dfsrr;
fsl,preserve-clocking;
dtt@28 {
compatible = "winbond,w83782d";
@@ -111,11 +111,11 @@
#address-cells = <1>;
#size-cells = <0>;
cell-index = <1>;
compatible = "fsl-i2c";
compatible = "fsl,mpc8544-i2c", "fsl-i2c";
reg = <0x3100 0x100>;
interrupts = <43 2>;
interrupt-parent = <&mpic>;
dfsrr;
fsl,preserve-clocking;
};
enet0: ethernet@24000 {