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Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

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Pull i2c fixes from Wolfram Sang:
 "Some driver bugfixes for the I2C subsystem"

* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: mv64xxx: Document the newly introduced allwinner compatible
  i2c: Fix Kontron PLD prescaler calculation
  i2c: i2c-mxs: Use DMA mode even for small transfers
This commit is contained in:
Linus Torvalds 2013-08-11 12:10:47 -07:00
commit 9e6bdaaaa5
3 changed files with 4 additions and 4 deletions
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2
Documentation/devicetree/bindings/i2c/i2c-mv64xxx.txt
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@ -4,7 +4,7 @@
Required properties :
- reg : Offset and length of the register set for the device
- compatible : Should be "marvell,mv64xxx-i2c"
- compatible : Should be "marvell,mv64xxx-i2c" or "allwinner,sun4i-i2c"
- interrupts : The interrupt number
Optional properties :

4
drivers/i2c/busses/i2c-kempld.c
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@ -246,9 +246,9 @@ static void kempld_i2c_device_init(struct kempld_i2c_data *i2c)
bus_frequency = KEMPLD_I2C_FREQ_MAX;
if (pld->info.spec_major == 1)
prescale = pld->pld_clock / bus_frequency * 5 - 1000;
prescale = pld->pld_clock / (bus_frequency * 5) - 1000;
else
prescale = pld->pld_clock / bus_frequency * 4 - 3000;
prescale = pld->pld_clock / (bus_frequency * 4) - 3000;
if (prescale < 0)
prescale = 0;

2
drivers/i2c/busses/i2c-mxs.c
View File

@ -493,7 +493,7 @@ static int mxs_i2c_xfer_msg(struct i2c_adapter *adap, struct i2c_msg *msg,
* based on this empirical measurement and a lot of previous frobbing.
*/
i2c->cmd_err = 0;
if (msg->len < 8) {
if (0) { /* disable PIO mode until a proper fix is made */
ret = mxs_i2c_pio_setup_xfer(adap, msg, flags);
if (ret)
mxs_i2c_reset(i2c);