[PATCH 04/10] i2c: brcmstb: use core helper to mark adapter suspended

Wolfram Sang
2018-12-19T16:48:20Z

Rejecting transfers should be handled by the core.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Kamal Dasu <kdasu.kdev@gmail.com>
---
drivers/i2c/busses/i2c-brcmstb.c | 13 ++-----------
1 file changed, 2 insertions(+), 11 deletions(-)

diff --git a/drivers/i2c/busses/i2c-brcmstb.c b/drivers/i2c/busses/i2c-brcmstb.c
index 826d32049996..f4d862234980 100644
--- a/drivers/i2c/busses/i2c-brcmstb.c
+++ b/drivers/i2c/busses/i2c-brcmstb.c
@@ -170,7 +170,6 @@ struct brcmstb_i2c_dev {
struct bsc_regs *bsc_regmap;
struct i2c_adapter adapter;
struct completion done;
- bool is_suspended;
u32 clk_freq_hz;
int data_regsz;
};
@@ -467,9 +466,6 @@ static int brcmstb_i2c_xfer(struct i2c_adapter *adapter,
int xfersz = brcmstb_i2c_get_xfersz(dev);
u32 cond, cond_per_msg;

- if (dev->is_suspended)
- return -EBUSY;
-
/* Loop through all messages */
for (i = 0; i < num; i++) {
pmsg = &msgs[i];
@@ -689,10 +685,7 @@ static int brcmstb_i2c_suspend(struct device *dev)
{
struct brcmstb_i2c_dev *i2c_dev = dev_get_drvdata(dev);

- i2c_lock_bus(&i2c_dev->adapter, I2C_LOCK_ROOT_ADAPTER);
- i2c_dev->is_suspended = true;
- i2c_unlock_bus(&i2c_dev->adapter, I2C_LOCK_ROOT_ADAPTER);
-
+ i2c_mark_adapter_suspended(&i2c_dev->adapter);
return 0;
}

@@ -700,10 +693,8 @@ static int brcmstb_i2c_resume(struct device *dev)
{
struct brcmstb_i2c_dev *i2c_dev = dev_get_drvdata(dev);

- i2c_lock_bus(&i2c_dev->adapter, I2C_LOCK_ROOT_ADAPTER);
brcmstb_i2c_set_bsc_reg_defaults(i2c_dev);
- i2c_dev->is_suspended = false;
- i2c_unlock_bus(&i2c_dev->adapter, I2C_LOCK_ROOT_ADAPTER);
+ i2c_mark_adapter_resumed(&i2c_dev->adapter);

return 0;
}
--
2.11.0