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I2C: OMAP2+: use platform_data ip revision to select register map 

Change the register map names to reflect the IP revision they
are representing, and use the platform_data IP revision index
to select between them at init time.

Eliminates 1 of 17 cpu_...() calls in the driver.

Cc: patches@linaro.org
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Andy Green <andy.green@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Acked-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Kevin Hilman <khilman@ti.com>
This commit is contained in:
Andy Green 2011-05-30 07:43:06 -07:00 committed by Ben Dooks
parent d177e5ddb8
commit a129557777
1 changed files with 5 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/i2c/busses/i2c-omap.c
View File

@ -205,7 +205,7 @@ struct omap_i2c_dev {
u16 errata;
};
static const u8 reg_map[] = {
static const u8 reg_map_ip_v1[] = {
[OMAP_I2C_REV_REG] = 0x00,
[OMAP_I2C_IE_REG] = 0x01,
[OMAP_I2C_STAT_REG] = 0x02,
@ -226,7 +226,7 @@ static const u8 reg_map[] = {
[OMAP_I2C_BUFSTAT_REG] = 0x10,
};
static const u8 omap4_reg_map[] = {
static const u8 reg_map_ip_v2[] = {
[OMAP_I2C_REV_REG] = 0x04,
[OMAP_I2C_IE_REG] = 0x2c,
[OMAP_I2C_STAT_REG] = 0x28,
@ -1035,10 +1035,10 @@ omap_i2c_probe(struct platform_device *pdev)
else
dev->reg_shift = 2;
if (cpu_is_omap44xx())
dev->regs = (u8 *) omap4_reg_map;
if (pdata->rev == OMAP_I2C_IP_VERSION_2)
dev->regs = (u8 *)reg_map_ip_v2;
else
dev->regs = (u8 *) reg_map;
dev->regs = (u8 *)reg_map_ip_v1;
pm_runtime_enable(&pdev->dev);
omap_i2c_unidle(dev);