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author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-12 23:51:39 +0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-12 23:51:39 +0400 |
commit | d01e4afdbb65e030fd6f1f96c30a558e2eb0f279 (patch) | |
tree | 02ef82b2740cf93a98199eded5ef765fa6e03052 /drivers/i2c | |
parent | 8287361abca36504da813638310d2547469283eb (diff) | |
parent | 794b175fc0c0c4844dbb7b137a73bbfd01f6c608 (diff) | |
download | linux-d01e4afdbb65e030fd6f1f96c30a558e2eb0f279.tar.xz |
Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC cleanups on various subarchitectures from Olof Johansson:
"Cleanup patches for various ARM platforms and some of their associated
drivers. There's also a branch in here that enables Freescale i.MX to
be part of the multiplatform support -- the first "big" SoC that is
moved over (more multiplatform work comes in a separate branch later
during the merge window)."
Conflicts fixed as per Olof, including a silent semantic one in
arch/arm/mach-omap2/board-generic.c (omap_prcm_restart() was renamed to
omap3xxx_restart(), and a new user of the old name was added).
* tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (189 commits)
ARM: omap: fix typo on timer cleanup
ARM: EXYNOS: Remove unused regs-mem.h file
ARM: EXYNOS: Remove unused non-dt support for dwmci controller
ARM: Kirkwood: Use hw_pci.ops instead of hw_pci.scan
ARM: OMAP3: cm-t3517: use GPTIMER for system clock
ARM: OMAP2+: timer: remove CONFIG_OMAP_32K_TIMER
ARM: SAMSUNG: use devm_ functions for ADC driver
ARM: EXYNOS: no duplicate mask/unmask in eint0_15
ARM: S3C24XX: SPI clock channel setup is fixed for S3C2443
ARM: EXYNOS: Remove i2c0 resource information and setting of device names
ARM: Kirkwood: checkpatch cleanups
ARM: Kirkwood: Fix sparse warnings.
ARM: Kirkwood: Remove unused includes
ARM: kirkwood: cleanup lsxl board includes
ARM: integrator: use BUG_ON where possible
ARM: integrator: push down SC dependencies
ARM: integrator: delete static UART1 mapping
ARM: integrator: delete SC mapping on the CP
ARM: integrator: remove static CP syscon mapping
ARM: integrator: remove static AP syscon mapping
...
Diffstat (limited to 'drivers/i2c')
-rw-r--r-- | drivers/i2c/busses/i2c-imx.c | 40 |
1 files changed, 35 insertions, 5 deletions
diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c index 2ef162d148cb..b9734747d610 100644 --- a/drivers/i2c/busses/i2c-imx.c +++ b/drivers/i2c/busses/i2c-imx.c @@ -52,8 +52,6 @@ #include <linux/of_device.h> #include <linux/of_i2c.h> #include <linux/pinctrl/consumer.h> - -#include <mach/hardware.h> #include <linux/platform_data/i2c-imx.h> /** Defines ******************************************************************** @@ -115,6 +113,11 @@ static u16 __initdata i2c_clk_div[50][2] = { { 3072, 0x1E }, { 3840, 0x1F } }; +enum imx_i2c_type { + IMX1_I2C, + IMX21_I2C, +}; + struct imx_i2c_struct { struct i2c_adapter adapter; struct clk *clk; @@ -124,13 +127,33 @@ struct imx_i2c_struct { unsigned int disable_delay; int stopped; unsigned int ifdr; /* IMX_I2C_IFDR */ + enum imx_i2c_type devtype; +}; + +static struct platform_device_id imx_i2c_devtype[] = { + { + .name = "imx1-i2c", + .driver_data = IMX1_I2C, + }, { + .name = "imx21-i2c", + .driver_data = IMX21_I2C, + }, { + /* sentinel */ + } }; +MODULE_DEVICE_TABLE(platform, imx_i2c_devtype); static const struct of_device_id i2c_imx_dt_ids[] = { - { .compatible = "fsl,imx1-i2c", }, + { .compatible = "fsl,imx1-i2c", .data = &imx_i2c_devtype[IMX1_I2C], }, + { .compatible = "fsl,imx21-i2c", .data = &imx_i2c_devtype[IMX21_I2C], }, { /* sentinel */ } }; +static inline int is_imx1_i2c(struct imx_i2c_struct *i2c_imx) +{ + return i2c_imx->devtype == IMX1_I2C; +} + /** Functions for IMX I2C adapter driver *************************************** *******************************************************************************/ @@ -223,7 +246,7 @@ static void i2c_imx_stop(struct imx_i2c_struct *i2c_imx) temp &= ~(I2CR_MSTA | I2CR_MTX); writeb(temp, i2c_imx->base + IMX_I2C_I2CR); } - if (cpu_is_mx1()) { + if (is_imx1_i2c(i2c_imx)) { /* * This delay caused by an i.MXL hardware bug. * If no (or too short) delay, no "STOP" bit will be generated. @@ -465,6 +488,8 @@ static struct i2c_algorithm i2c_imx_algo = { static int __init i2c_imx_probe(struct platform_device *pdev) { + const struct of_device_id *of_id = of_match_device(i2c_imx_dt_ids, + &pdev->dev); struct imx_i2c_struct *i2c_imx; struct resource *res; struct imxi2c_platform_data *pdata = pdev->dev.platform_data; @@ -497,6 +522,10 @@ static int __init i2c_imx_probe(struct platform_device *pdev) return -ENOMEM; } + if (of_id) + pdev->id_entry = of_id->data; + i2c_imx->devtype = pdev->id_entry->driver_data; + /* Setup i2c_imx driver structure */ strlcpy(i2c_imx->adapter.name, pdev->name, sizeof(i2c_imx->adapter.name)); i2c_imx->adapter.owner = THIS_MODULE; @@ -593,7 +622,8 @@ static struct platform_driver i2c_imx_driver = { .name = DRIVER_NAME, .owner = THIS_MODULE, .of_match_table = i2c_imx_dt_ids, - } + }, + .id_table = imx_i2c_devtype, }; static int __init i2c_adap_imx_init(void) |