From 9e264f3f85a56cc109cc2d6010a48aa89d5c1ff1 Mon Sep 17 00:00:00 2001 From: Amit Kumar Mahapatra via Alsa-devel Date: Fri, 10 Mar 2023 23:02:03 +0530 Subject: spi: Replace all spi->chip_select and spi->cs_gpiod references with function call MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Supporting multi-cs in spi drivers would require the chip_select & cs_gpiod members of struct spi_device to be an array. But changing the type of these members to array would break the spi driver functionality. To make the transition smoother introduced four new APIs to get/set the spi->chip_select & spi->cs_gpiod and replaced all spi->chip_select and spi->cs_gpiod references with get or set API calls. While adding multi-cs support in further patches the chip_select & cs_gpiod members of the spi_device structure would be converted to arrays & the "idx" parameter of the APIs would be used as array index i.e., spi->chip_select[idx] & spi->cs_gpiod[idx] respectively. Signed-off-by: Amit Kumar Mahapatra Acked-by: Heiko Stuebner # Rockchip drivers Reviewed-by: Michal Simek Reviewed-by: Cédric Le Goater # Aspeed driver Reviewed-by: Dhruva Gole # SPI Cadence QSPI Reviewed-by: Patrice Chotard # spi-stm32-qspi Acked-by: William Zhang # bcm63xx-hsspi driver Reviewed-by: Serge Semin # DW SSI part Link: https://lore.kernel.org/r/167847070432.26.15076794204368669839@mailman-core.alsa-project.org Signed-off-by: Mark Brown --- drivers/spi/spi-fsl-dspi.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) (limited to 'drivers/spi/spi-fsl-dspi.c') diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c index 49df00f52ea4..ee42285b5c52 100644 --- a/drivers/spi/spi-fsl-dspi.c +++ b/drivers/spi/spi-fsl-dspi.c @@ -902,19 +902,19 @@ static irqreturn_t dspi_interrupt(int irq, void *dev_id) static void dspi_assert_cs(struct spi_device *spi, bool *cs) { - if (!spi->cs_gpiod || *cs) + if (!spi_get_csgpiod(spi, 0) || *cs) return; - gpiod_set_value_cansleep(spi->cs_gpiod, true); + gpiod_set_value_cansleep(spi_get_csgpiod(spi, 0), true); *cs = true; } static void dspi_deassert_cs(struct spi_device *spi, bool *cs) { - if (!spi->cs_gpiod || !*cs) + if (!spi_get_csgpiod(spi, 0) || !*cs) return; - gpiod_set_value_cansleep(spi->cs_gpiod, false); + gpiod_set_value_cansleep(spi_get_csgpiod(spi, 0), false); *cs = false; } @@ -938,8 +938,8 @@ static int dspi_transfer_one_message(struct spi_controller *ctlr, /* Prepare command word for CMD FIFO */ dspi->tx_cmd = SPI_PUSHR_CMD_CTAS(0); - if (!spi->cs_gpiod) - dspi->tx_cmd |= SPI_PUSHR_CMD_PCS(spi->chip_select); + if (!spi_get_csgpiod(spi, 0)) + dspi->tx_cmd |= SPI_PUSHR_CMD_PCS(spi_get_chipselect(spi, 0)); if (list_is_last(&dspi->cur_transfer->transfer_list, &dspi->cur_msg->transfers)) { @@ -1058,7 +1058,7 @@ static int dspi_setup(struct spi_device *spi) chip->ctar_val |= SPI_CTAR_LSBFE; } - gpiod_direction_output(spi->cs_gpiod, false); + gpiod_direction_output(spi_get_csgpiod(spi, 0), false); dspi_deassert_cs(spi, &cs); spi_set_ctldata(spi, chip); @@ -1071,7 +1071,7 @@ static void dspi_cleanup(struct spi_device *spi) struct chip_data *chip = spi_get_ctldata((struct spi_device *)spi); dev_dbg(&spi->dev, "spi_device %u.%u cleanup\n", - spi->controller->bus_num, spi->chip_select); + spi->controller->bus_num, spi_get_chipselect(spi, 0)); kfree(chip); } -- cgit v1.2.3