[PATCH v4 3/3] spi: stm32-qspi: add automatic poll status feature
Patrice CHOTARD
patrice.chotard at foss.st.com
Tue May 18 08:48:47 PDT 2021
On 5/18/21 4:37 PM, Boris Brezillon wrote:
> On Tue, 18 May 2021 15:43:32 +0200
> <patrice.chotard at foss.st.com> wrote:
>
>> +static int stm32_qspi_poll_status(struct spi_mem *mem, const struct spi_mem_op *op,
>> + u16 mask, u16 match,
>> + unsigned long initial_delay_us,
>> + unsigned long polling_rate_us,
>> + unsigned long timeout_ms)
>> +{
>> + struct stm32_qspi *qspi = spi_controller_get_devdata(mem->spi->master);
>> + int ret;
>> +
>
> The spi_mem_supports_op() call is still missing.
Yes, i forgot it
Thanks
Patrice
>
>> + ret = pm_runtime_get_sync(qspi->dev);
>> + if (ret < 0) {
>> + pm_runtime_put_noidle(qspi->dev);
>> + return ret;
>> + }
>> +
>> + mutex_lock(&qspi->lock);
>> +
>> + writel_relaxed(mask, qspi->io_base + QSPI_PSMKR);
>> + writel_relaxed(match, qspi->io_base + QSPI_PSMAR);
>> + qspi->fmode = CCR_FMODE_APM;
>> + qspi->status_timeout = timeout_ms;
>> +
>> + ret = stm32_qspi_send(mem, op);
>> + mutex_unlock(&qspi->lock);
>> +
>> + pm_runtime_mark_last_busy(qspi->dev);
>> + pm_runtime_put_autosuspend(qspi->dev);
>> +
>> + return ret;
>> +}
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