diff options
author | Miquel Raynal <miquel.raynal@bootlin.com> | 2020-01-27 17:48:30 +0100 |
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committer | Miquel Raynal <miquel.raynal@bootlin.com> | 2020-01-27 17:48:30 +0100 |
commit | 701ddf0bbfc761b8bdc974ce9c4e05f9833683e3 (patch) | |
tree | 1009975aacf14d36cc280dfeef1a9a816fa16ef8 /drivers/spi/spi-fsl-spi.c | |
parent | 0dcf2572710d68c305e58946c435ddf67ea16bf3 (diff) | |
parent | ccfb9299a0b63da4fde607c822e1470472a46177 (diff) |
Merge tag 'spi-nor/for-5.6' into mtd/next
SPI NOR core changes:
- Add support for TB selection using SR bit 6,
- Add support for few flashes.
Diffstat (limited to 'drivers/spi/spi-fsl-spi.c')
-rw-r--r-- | drivers/spi/spi-fsl-spi.c | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/drivers/spi/spi-fsl-spi.c b/drivers/spi/spi-fsl-spi.c index 114801a32371..fb4159ad6bf6 100644 --- a/drivers/spi/spi-fsl-spi.c +++ b/drivers/spi/spi-fsl-spi.c @@ -611,6 +611,7 @@ static struct spi_master * fsl_spi_probe(struct device *dev, master->setup = fsl_spi_setup; master->cleanup = fsl_spi_cleanup; master->transfer_one_message = fsl_spi_do_one_msg; + master->use_gpio_descriptors = true; mpc8xxx_spi = spi_master_get_devdata(master); mpc8xxx_spi->max_bits_per_word = 32; @@ -727,17 +728,27 @@ static int of_fsl_spi_probe(struct platform_device *ofdev) } } #endif - - pdata->cs_control = fsl_spi_cs_control; + /* + * Handle the case where we have one hardwired (always selected) + * device on the first "chipselect". Else we let the core code + * handle any GPIOs or native chip selects and assign the + * appropriate callback for dealing with the CS lines. This isn't + * supported on the GRLIB variant. + */ + ret = gpiod_count(dev, "cs"); + if (ret <= 0) + pdata->max_chipselect = 1; + else + pdata->cs_control = fsl_spi_cs_control; } ret = of_address_to_resource(np, 0, &mem); if (ret) goto err; - irq = irq_of_parse_and_map(np, 0); - if (!irq) { - ret = -EINVAL; + irq = platform_get_irq(ofdev, 0); + if (irq < 0) { + ret = irq; goto err; } @@ -750,7 +761,6 @@ static int of_fsl_spi_probe(struct platform_device *ofdev) return 0; err: - irq_dispose_mapping(irq); return ret; } |