From: Emil Renner Berthing <esmil@mailme.dk>
To: linux-spi@vger.kernel.org
Cc: Emil Renner Berthing <kernel@esmil.dk>,
Addy Ke <addy.ke@rock-chips.com>, Mark Brown <broonie@kernel.org>,
Heiko Stuebner <heiko@sntech.de>,
linux-arm-kernel@lists.infradead.org,
linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH v1 14/14] spi: rockchip: support lsb-first mode
Date: Wed, 31 Oct 2018 11:57:11 +0100 [thread overview]
Message-ID: <20181031105711.19575-15-esmil@mailme.dk> (raw)
In-Reply-To: <20181031105711.19575-1-esmil@mailme.dk>
From: Emil Renner Berthing <kernel@esmil.dk>
Add missing support for lsb-first mode.
Signed-off-by: Emil Renner Berthing <kernel@esmil.dk>
---
drivers/spi/spi-rockchip.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/spi/spi-rockchip.c b/drivers/spi/spi-rockchip.c
index 9e47e81553a1..3912526ead66 100644
--- a/drivers/spi/spi-rockchip.c
+++ b/drivers/spi/spi-rockchip.c
@@ -476,6 +476,8 @@ static void rockchip_spi_config(struct rockchip_spi *rs,
cr0 |= rs->rsd << CR0_RSD_OFFSET;
cr0 |= (spi->mode & 0x3U) << CR0_SCPH_OFFSET;
+ if (spi->mode & SPI_LSB_FIRST)
+ cr0 |= CR0_FBM_LSB << CR0_FBM_OFFSET;
if (xfer->rx_buf && xfer->tx_buf)
cr0 |= CR0_XFM_TR << CR0_XFM_OFFSET;
@@ -681,7 +683,7 @@ static int rockchip_spi_probe(struct platform_device *pdev)
master->auto_runtime_pm = true;
master->bus_num = pdev->id;
- master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_LOOP;
+ master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_LOOP | SPI_LSB_FIRST;
master->num_chipselect = ROCKCHIP_SPI_MAX_CS_NUM;
master->dev.of_node = pdev->dev.of_node;
master->bits_per_word_mask = SPI_BPW_MASK(16) | SPI_BPW_MASK(8) | SPI_BPW_MASK(4);
--
2.19.1
next prev parent reply other threads:[~2018-10-31 10:57 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-31 10:56 [PATCH v1 00/14] Rockchip SPI cleanup and use interrupts Emil Renner Berthing
2018-10-31 10:56 ` [PATCH v1 01/14] spi: rockchip: make spi_enable_chip take bool Emil Renner Berthing
2018-11-05 12:06 ` Applied "spi: rockchip: make spi_enable_chip take bool" to the spi tree Mark Brown
2018-10-31 10:56 ` [PATCH v1 02/14] spi: rockchip: use designated init for dma config Emil Renner Berthing
2018-11-05 12:06 ` Applied "spi: rockchip: use designated init for dma config" to the spi tree Mark Brown
2018-10-31 10:57 ` [PATCH v1 03/14] spi: rockchip: always use SPI mode Emil Renner Berthing
2018-11-05 12:06 ` Applied "spi: rockchip: always use SPI mode" to the spi tree Mark Brown
2018-10-31 10:57 ` [PATCH v1 04/14] spi: rockchip: use atomic_t state Emil Renner Berthing
2018-11-05 12:06 ` Applied "spi: rockchip: use atomic_t state" to the spi tree Mark Brown
2018-10-31 10:57 ` [PATCH v1 05/14] spi: rockchip: disable spi on error Emil Renner Berthing
2018-11-05 12:06 ` Applied "spi: rockchip: disable spi on error" to the spi tree Mark Brown
2018-10-31 10:57 ` [PATCH v1 06/14] spi: rockchip: read transfer info directly Emil Renner Berthing
2018-11-05 12:06 ` Applied "spi: rockchip: read transfer info directly" to the spi tree Mark Brown
2018-10-31 10:57 ` [PATCH v1 07/14] spi: rockchip: don't store dma channels twice Emil Renner Berthing
2018-11-05 12:06 ` Applied "spi: rockchip: don't store dma channels twice" to the spi tree Mark Brown
2018-10-31 10:57 ` [PATCH v1 08/14] spi: rockchip: remove master pointer from dev data Emil Renner Berthing
2018-11-05 12:06 ` Applied "spi: rockchip: remove master pointer from dev data" to the spi tree Mark Brown
2018-10-31 10:57 ` [PATCH v1 09/14] spi: rockchip: simplify use_dma logic Emil Renner Berthing
2018-11-05 12:06 ` Applied "spi: rockchip: simplify use_dma logic" to the spi tree Mark Brown
2018-10-31 10:57 ` [PATCH v1 10/14] spi: rockchip: set min/max speed Emil Renner Berthing
2018-11-05 12:06 ` Applied "spi: rockchip: set min/max speed" to the spi tree Mark Brown
2018-10-31 10:57 ` [PATCH v1 11/14] spi: rockchip: precompute rx sample delay Emil Renner Berthing
2018-11-05 12:06 ` Applied "spi: rockchip: precompute rx sample delay" to the spi tree Mark Brown
2018-10-31 10:57 ` [PATCH v1 12/14] spi: rockchip: use irq rather than polling Emil Renner Berthing
2018-11-05 12:06 ` Applied "spi: rockchip: use irq rather than polling" to the spi tree Mark Brown
2018-10-31 10:57 ` [PATCH v1 13/14] spi: rockchip: support 4bit words Emil Renner Berthing
2018-11-05 12:06 ` Applied "spi: rockchip: support 4bit words" to the spi tree Mark Brown
2018-10-31 10:57 ` Emil Renner Berthing [this message]
2018-11-05 12:06 ` Applied "spi: rockchip: support lsb-first mode" " Mark Brown
2018-10-31 11:20 ` [PATCH v1 00/14] Rockchip SPI cleanup and use interrupts Heiko Stübner
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