diff options
Diffstat (limited to 'drivers/i2c')
-rw-r--r-- | drivers/i2c/busses/i2c-s3c2410.c | 7 | ||||
-rw-r--r-- | drivers/i2c/busses/i2c-tegra.c | 8 |
2 files changed, 10 insertions, 5 deletions
diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c index 6c00c107ebf3..f84a63c6dd97 100644 --- a/drivers/i2c/busses/i2c-s3c2410.c +++ b/drivers/i2c/busses/i2c-s3c2410.c | |||
@@ -248,12 +248,12 @@ static inline int is_msgend(struct s3c24xx_i2c *i2c) | |||
248 | return i2c->msg_ptr >= i2c->msg->len; | 248 | return i2c->msg_ptr >= i2c->msg->len; |
249 | } | 249 | } |
250 | 250 | ||
251 | /* i2s_s3c_irq_nextbyte | 251 | /* i2c_s3c_irq_nextbyte |
252 | * | 252 | * |
253 | * process an interrupt and work out what to do | 253 | * process an interrupt and work out what to do |
254 | */ | 254 | */ |
255 | 255 | ||
256 | static int i2s_s3c_irq_nextbyte(struct s3c24xx_i2c *i2c, unsigned long iicstat) | 256 | static int i2c_s3c_irq_nextbyte(struct s3c24xx_i2c *i2c, unsigned long iicstat) |
257 | { | 257 | { |
258 | unsigned long tmp; | 258 | unsigned long tmp; |
259 | unsigned char byte; | 259 | unsigned char byte; |
@@ -264,7 +264,6 @@ static int i2s_s3c_irq_nextbyte(struct s3c24xx_i2c *i2c, unsigned long iicstat) | |||
264 | case STATE_IDLE: | 264 | case STATE_IDLE: |
265 | dev_err(i2c->dev, "%s: called in STATE_IDLE\n", __func__); | 265 | dev_err(i2c->dev, "%s: called in STATE_IDLE\n", __func__); |
266 | goto out; | 266 | goto out; |
267 | break; | ||
268 | 267 | ||
269 | case STATE_STOP: | 268 | case STATE_STOP: |
270 | dev_err(i2c->dev, "%s: called in STATE_STOP\n", __func__); | 269 | dev_err(i2c->dev, "%s: called in STATE_STOP\n", __func__); |
@@ -444,7 +443,7 @@ static irqreturn_t s3c24xx_i2c_irq(int irqno, void *dev_id) | |||
444 | /* pretty much this leaves us with the fact that we've | 443 | /* pretty much this leaves us with the fact that we've |
445 | * transmitted or received whatever byte we last sent */ | 444 | * transmitted or received whatever byte we last sent */ |
446 | 445 | ||
447 | i2s_s3c_irq_nextbyte(i2c, status); | 446 | i2c_s3c_irq_nextbyte(i2c, status); |
448 | 447 | ||
449 | out: | 448 | out: |
450 | return IRQ_HANDLED; | 449 | return IRQ_HANDLED; |
diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c index 4d9319665e32..fb3b4f8f8152 100644 --- a/drivers/i2c/busses/i2c-tegra.c +++ b/drivers/i2c/busses/i2c-tegra.c | |||
@@ -40,8 +40,10 @@ | |||
40 | #define I2C_CNFG_NEW_MASTER_FSM (1<<11) | 40 | #define I2C_CNFG_NEW_MASTER_FSM (1<<11) |
41 | #define I2C_STATUS 0x01C | 41 | #define I2C_STATUS 0x01C |
42 | #define I2C_SL_CNFG 0x020 | 42 | #define I2C_SL_CNFG 0x020 |
43 | #define I2C_SL_CNFG_NACK (1<<1) | ||
43 | #define I2C_SL_CNFG_NEWSL (1<<2) | 44 | #define I2C_SL_CNFG_NEWSL (1<<2) |
44 | #define I2C_SL_ADDR1 0x02c | 45 | #define I2C_SL_ADDR1 0x02c |
46 | #define I2C_SL_ADDR2 0x030 | ||
45 | #define I2C_TX_FIFO 0x050 | 47 | #define I2C_TX_FIFO 0x050 |
46 | #define I2C_RX_FIFO 0x054 | 48 | #define I2C_RX_FIFO 0x054 |
47 | #define I2C_PACKET_TRANSFER_STATUS 0x058 | 49 | #define I2C_PACKET_TRANSFER_STATUS 0x058 |
@@ -337,7 +339,11 @@ static int tegra_i2c_init(struct tegra_i2c_dev *i2c_dev) | |||
337 | 339 | ||
338 | if (!i2c_dev->is_dvc) { | 340 | if (!i2c_dev->is_dvc) { |
339 | u32 sl_cfg = i2c_readl(i2c_dev, I2C_SL_CNFG); | 341 | u32 sl_cfg = i2c_readl(i2c_dev, I2C_SL_CNFG); |
340 | i2c_writel(i2c_dev, sl_cfg | I2C_SL_CNFG_NEWSL, I2C_SL_CNFG); | 342 | sl_cfg |= I2C_SL_CNFG_NACK | I2C_SL_CNFG_NEWSL; |
343 | i2c_writel(i2c_dev, sl_cfg, I2C_SL_CNFG); | ||
344 | i2c_writel(i2c_dev, 0xfc, I2C_SL_ADDR1); | ||
345 | i2c_writel(i2c_dev, 0x00, I2C_SL_ADDR2); | ||
346 | |||
341 | } | 347 | } |
342 | 348 | ||
343 | val = 7 << I2C_FIFO_CONTROL_TX_TRIG_SHIFT | | 349 | val = 7 << I2C_FIFO_CONTROL_TX_TRIG_SHIFT | |