ALTR_I2C_ISR_ARB
if (unlikely(status & ALTR_I2C_ISR_ARB)) {
altr_i2c_int_clear(idev, ALTR_I2C_ISR_ARB);
u32 imask = ALTR_I2C_ISR_RXOF | ALTR_I2C_ISR_ARB | ALTR_I2C_ISR_NACK;
#define ALTR_I2C_ALL_IRQ (ALTR_I2C_ISR_RXOF | ALTR_I2C_ISR_ARB | \