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| author | Maxime Ripard <maxime@cerno.tech> | 2021-09-14 09:25:30 +0200 |
|---|---|---|
| committer | Maxime Ripard <maxime@cerno.tech> | 2021-09-14 09:25:30 +0200 |
| commit | 2f76520561d01a5f37e6d6ed2c2e441b6a355a96 (patch) | |
| tree | 692f210145f35ec2621e2015d788267f25e673cb /drivers/spi/spi-pxa2xx.c | |
| parent | 617d5b34f22c66fe9fc9f150be27f5de1b87ca15 (diff) | |
| parent | 6880fa6c56601bb8ed59df6c30fd390cc5f6dd8f (diff) | |
| download | linux-2f76520561d01a5f37e6d6ed2c2e441b6a355a96.tar.gz linux-2f76520561d01a5f37e6d6ed2c2e441b6a355a96.tar.bz2 linux-2f76520561d01a5f37e6d6ed2c2e441b6a355a96.zip | |
Merge drm/drm-next into drm-misc-next
Kickstart new drm-misc-next cycle.
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Diffstat (limited to 'drivers/spi/spi-pxa2xx.c')
| -rw-r--r-- | drivers/spi/spi-pxa2xx.c | 35 |
1 files changed, 17 insertions, 18 deletions
diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c index 974e30744b83..1573f6d8eb48 100644 --- a/drivers/spi/spi-pxa2xx.c +++ b/drivers/spi/spi-pxa2xx.c @@ -594,24 +594,29 @@ static int u32_reader(struct driver_data *drv_data) static void reset_sccr1(struct driver_data *drv_data) { - struct chip_data *chip = - spi_get_ctldata(drv_data->controller->cur_msg->spi); - u32 sccr1_reg; + u32 mask = drv_data->int_cr1 | drv_data->dma_cr1, threshold; + struct chip_data *chip; + + if (drv_data->controller->cur_msg) { + chip = spi_get_ctldata(drv_data->controller->cur_msg->spi); + threshold = chip->threshold; + } else { + threshold = 0; + } - sccr1_reg = pxa2xx_spi_read(drv_data, SSCR1) & ~drv_data->int_cr1; switch (drv_data->ssp_type) { case QUARK_X1000_SSP: - sccr1_reg &= ~QUARK_X1000_SSCR1_RFT; + mask |= QUARK_X1000_SSCR1_RFT; break; case CE4100_SSP: - sccr1_reg &= ~CE4100_SSCR1_RFT; + mask |= CE4100_SSCR1_RFT; break; default: - sccr1_reg &= ~SSCR1_RFT; + mask |= SSCR1_RFT; break; } - sccr1_reg |= chip->threshold; - pxa2xx_spi_write(drv_data, SSCR1, sccr1_reg); + + pxa2xx_spi_update(drv_data, SSCR1, mask, threshold); } static void int_stop_and_reset(struct driver_data *drv_data) @@ -724,11 +729,8 @@ static irqreturn_t interrupt_transfer(struct driver_data *drv_data) static void handle_bad_msg(struct driver_data *drv_data) { + int_stop_and_reset(drv_data); pxa2xx_spi_off(drv_data); - clear_SSCR1_bits(drv_data, drv_data->int_cr1); - if (!pxa25x_ssp_comp(drv_data)) - pxa2xx_spi_write(drv_data, SSTO, 0); - write_SSSR_CS(drv_data, drv_data->clear_sr); dev_err(drv_data->ssp->dev, "bad message state in interrupt handler\n"); } @@ -1156,13 +1158,10 @@ static void pxa2xx_spi_handle_err(struct spi_controller *controller, { struct driver_data *drv_data = spi_controller_get_devdata(controller); + int_stop_and_reset(drv_data); + /* Disable the SSP */ pxa2xx_spi_off(drv_data); - /* Clear and disable interrupts and service requests */ - write_SSSR_CS(drv_data, drv_data->clear_sr); - clear_SSCR1_bits(drv_data, drv_data->int_cr1 | drv_data->dma_cr1); - if (!pxa25x_ssp_comp(drv_data)) - pxa2xx_spi_write(drv_data, SSTO, 0); /* * Stop the DMA if running. Note DMA callback handler may have unset |