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Diffstat (limited to 'drivers/i2c/busses/i2c-designware-core.c')
-rw-r--r--drivers/i2c/busses/i2c-designware-core.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/i2c/busses/i2c-designware-core.c b/drivers/i2c/busses/i2c-designware-core.c
index 1e48bec80edf..7b8ebbefb581 100644
--- a/drivers/i2c/busses/i2c-designware-core.c
+++ b/drivers/i2c/busses/i2c-designware-core.c
@@ -25,6 +25,7 @@
25 * ---------------------------------------------------------------------------- 25 * ----------------------------------------------------------------------------
26 * 26 *
27 */ 27 */
28#include <linux/export.h>
28#include <linux/clk.h> 29#include <linux/clk.h>
29#include <linux/errno.h> 30#include <linux/errno.h>
30#include <linux/err.h> 31#include <linux/err.h>
@@ -316,6 +317,7 @@ int i2c_dw_init(struct dw_i2c_dev *dev)
316 dw_writel(dev, dev->master_cfg , DW_IC_CON); 317 dw_writel(dev, dev->master_cfg , DW_IC_CON);
317 return 0; 318 return 0;
318} 319}
320EXPORT_SYMBOL_GPL(i2c_dw_init);
319 321
320/* 322/*
321 * Waiting for bus not busy 323 * Waiting for bus not busy
@@ -568,12 +570,14 @@ done:
568 570
569 return ret; 571 return ret;
570} 572}
573EXPORT_SYMBOL_GPL(i2c_dw_xfer);
571 574
572u32 i2c_dw_func(struct i2c_adapter *adap) 575u32 i2c_dw_func(struct i2c_adapter *adap)
573{ 576{
574 struct dw_i2c_dev *dev = i2c_get_adapdata(adap); 577 struct dw_i2c_dev *dev = i2c_get_adapdata(adap);
575 return dev->functionality; 578 return dev->functionality;
576} 579}
580EXPORT_SYMBOL_GPL(i2c_dw_func);
577 581
578static u32 i2c_dw_read_clear_intrbits(struct dw_i2c_dev *dev) 582static u32 i2c_dw_read_clear_intrbits(struct dw_i2c_dev *dev)
579{ 583{
@@ -678,17 +682,20 @@ tx_aborted:
678 682
679 return IRQ_HANDLED; 683 return IRQ_HANDLED;
680} 684}
685EXPORT_SYMBOL_GPL(i2c_dw_isr);
681 686
682void i2c_dw_enable(struct dw_i2c_dev *dev) 687void i2c_dw_enable(struct dw_i2c_dev *dev)
683{ 688{
684 /* Enable the adapter */ 689 /* Enable the adapter */
685 dw_writel(dev, 1, DW_IC_ENABLE); 690 dw_writel(dev, 1, DW_IC_ENABLE);
686} 691}
692EXPORT_SYMBOL_GPL(i2c_dw_enable);
687 693
688u32 i2c_dw_is_enabled(struct dw_i2c_dev *dev) 694u32 i2c_dw_is_enabled(struct dw_i2c_dev *dev)
689{ 695{
690 return dw_readl(dev, DW_IC_ENABLE); 696 return dw_readl(dev, DW_IC_ENABLE);
691} 697}
698EXPORT_SYMBOL_GPL(i2c_dw_is_enabled);
692 699
693void i2c_dw_disable(struct dw_i2c_dev *dev) 700void i2c_dw_disable(struct dw_i2c_dev *dev)
694{ 701{
@@ -699,18 +706,22 @@ void i2c_dw_disable(struct dw_i2c_dev *dev)
699 dw_writel(dev, 0, DW_IC_INTR_MASK); 706 dw_writel(dev, 0, DW_IC_INTR_MASK);
700 dw_readl(dev, DW_IC_CLR_INTR); 707 dw_readl(dev, DW_IC_CLR_INTR);
701} 708}
709EXPORT_SYMBOL_GPL(i2c_dw_disable);
702 710
703void i2c_dw_clear_int(struct dw_i2c_dev *dev) 711void i2c_dw_clear_int(struct dw_i2c_dev *dev)
704{ 712{
705 dw_readl(dev, DW_IC_CLR_INTR); 713 dw_readl(dev, DW_IC_CLR_INTR);
706} 714}
715EXPORT_SYMBOL_GPL(i2c_dw_clear_int);
707 716
708void i2c_dw_disable_int(struct dw_i2c_dev *dev) 717void i2c_dw_disable_int(struct dw_i2c_dev *dev)
709{ 718{
710 dw_writel(dev, 0, DW_IC_INTR_MASK); 719 dw_writel(dev, 0, DW_IC_INTR_MASK);
711} 720}
721EXPORT_SYMBOL_GPL(i2c_dw_disable_int);
712 722
713u32 i2c_dw_read_comp_param(struct dw_i2c_dev *dev) 723u32 i2c_dw_read_comp_param(struct dw_i2c_dev *dev)
714{ 724{
715 return dw_readl(dev, DW_IC_COMP_PARAM_1); 725 return dw_readl(dev, DW_IC_COMP_PARAM_1);
716} 726}
727EXPORT_SYMBOL_GPL(i2c_dw_read_comp_param);