diff options
Diffstat (limited to 'drivers/spi/spi-fsl-lpspi.c')
| -rw-r--r-- | drivers/spi/spi-fsl-lpspi.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/spi/spi-fsl-lpspi.c b/drivers/spi/spi-fsl-lpspi.c index ba207931e209..d0b2d551cc43 100644 --- a/drivers/spi/spi-fsl-lpspi.c +++ b/drivers/spi/spi-fsl-lpspi.c @@ -48,6 +48,7 @@ #define CR_RTF BIT(8) #define CR_RST BIT(1) #define CR_MEN BIT(0) +#define SR_MBF BIT(24) #define SR_TCF BIT(10) #define SR_FCF BIT(9) #define SR_RDF BIT(1) @@ -61,6 +62,7 @@ #define CFGR1_PCSPOL BIT(8) #define CFGR1_NOSTALL BIT(3) #define CFGR1_MASTER BIT(0) +#define FSR_RXCOUNT (BIT(16)|BIT(17)|BIT(18)) #define RSR_RXEMPTY BIT(1) #define TCR_CPOL BIT(31) #define TCR_CPHA BIT(30) @@ -433,6 +435,13 @@ static irqreturn_t fsl_lpspi_isr(int irq, void *dev_id) return IRQ_HANDLED; } + if (temp_SR & SR_MBF || + readl(fsl_lpspi->base + IMX7ULP_FSR) & FSR_RXCOUNT) { + writel(SR_FCF, fsl_lpspi->base + IMX7ULP_SR); + fsl_lpspi_intctrl(fsl_lpspi, IER_FCIE); + return IRQ_HANDLED; + } + if (temp_SR & SR_FCF && (temp_IER & IER_FCIE)) { writel(SR_FCF, fsl_lpspi->base + IMX7ULP_SR); complete(&fsl_lpspi->xfer_done); |