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authorTakashi Iwai <tiwai@suse.de>2018-10-22 23:26:37 +0200
committerTakashi Iwai <tiwai@suse.de>2018-10-22 23:26:37 +0200
commit5e3cdecf7834a764b9d24f6e696adf3e03813fab (patch)
tree2a1083ca53de6992b04d5026f6cb3310adccac04 /drivers/i2c/i2c-core-base.c
parentb5a229350b72b929edac5ba77c825f8ebb413533 (diff)
parent65dfb6d6dd2850f3f99f08536d2b14190350c854 (diff)
downloadtalos-op-linux-5e3cdecf7834a764b9d24f6e696adf3e03813fab.tar.gz
talos-op-linux-5e3cdecf7834a764b9d24f6e696adf3e03813fab.zip
Merge tag 'asoc-v5.0' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Updates for v5.0/v4.20 As ever there's a lot of small and driver specific changes going on here, but we do also have some relatively large changes in the core thanks to the hard work of Charles and Morimoto-san: - More component transitions from Morimoto-san, I think we're about finished with this. Thanks for all the hard work! - Morimoto-san also added a bunch of for_each_foo macros - A bunch of cleanups and fixes for DAPM from Charles. - MCLK support for several different devices, including CS42L51, STM32 SAI, and MAX98373. - Support for Allwinner A64 CODEC analog, Intel boards with DA7219 and MAX98927, Meson AXG PDM inputs, Nuvoton NAU8822, Renesas R8A7744 and TI PCM3060.
Diffstat (limited to 'drivers/i2c/i2c-core-base.c')
-rw-r--r--drivers/i2c/i2c-core-base.c13
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c
index f15737763608..9200e349f29e 100644
--- a/drivers/i2c/i2c-core-base.c
+++ b/drivers/i2c/i2c-core-base.c
@@ -2270,7 +2270,7 @@ EXPORT_SYMBOL(i2c_put_adapter);
*
* Return: NULL if a DMA safe buffer was not obtained. Use msg->buf with PIO.
* Or a valid pointer to be used with DMA. After use, release it by
- * calling i2c_release_dma_safe_msg_buf().
+ * calling i2c_put_dma_safe_msg_buf().
*
* This function must only be called from process context!
*/
@@ -2293,21 +2293,22 @@ u8 *i2c_get_dma_safe_msg_buf(struct i2c_msg *msg, unsigned int threshold)
EXPORT_SYMBOL_GPL(i2c_get_dma_safe_msg_buf);
/**
- * i2c_release_dma_safe_msg_buf - release DMA safe buffer and sync with i2c_msg
- * @msg: the message to be synced with
+ * i2c_put_dma_safe_msg_buf - release DMA safe buffer and sync with i2c_msg
* @buf: the buffer obtained from i2c_get_dma_safe_msg_buf(). May be NULL.
+ * @msg: the message which the buffer corresponds to
+ * @xferred: bool saying if the message was transferred
*/
-void i2c_release_dma_safe_msg_buf(struct i2c_msg *msg, u8 *buf)
+void i2c_put_dma_safe_msg_buf(u8 *buf, struct i2c_msg *msg, bool xferred)
{
if (!buf || buf == msg->buf)
return;
- if (msg->flags & I2C_M_RD)
+ if (xferred && msg->flags & I2C_M_RD)
memcpy(msg->buf, buf, msg->len);
kfree(buf);
}
-EXPORT_SYMBOL_GPL(i2c_release_dma_safe_msg_buf);
+EXPORT_SYMBOL_GPL(i2c_put_dma_safe_msg_buf);
MODULE_AUTHOR("Simon G. Vogl <simon@tk.uni-linz.ac.at>");
MODULE_DESCRIPTION("I2C-Bus main module");
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