diff options
| author | Andrey Zhizhikin <andrey.z@gmail.com> | 2020-08-11 08:29:45 +0000 |
|---|---|---|
| committer | Andrey Zhizhikin <andrey.z@gmail.com> | 2020-08-11 08:29:45 +0000 |
| commit | 14eec8a71c3e212080803c50cd9d7982e8208ec5 (patch) | |
| tree | ad0bcaf840c4999bc7b6a0291116eaa57db2a103 /drivers/spi | |
| parent | 7da1a123ebce2005573def510c61214fc1000163 (diff) | |
| parent | d811d29517d1ea05bc159579231652d3ca1c2a01 (diff) | |
Merge tag 'v5.4.53' into 5.4-2.1.x-imx
This is the 5.4.53 stable release
Conflicts (manual resolve, upstream patch merged):
drivers/thermal/imx_thermal.c
Upstream patch [9025a5589c035a7328c920ed4e190c0c2f5d017d] adds missing
of_node_put call, NXP version has been adapted to accommodate this patch
into the code.
Signed-off-by: Andrey Zhizhikin <andrey.z@gmail.com>
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/spi-fsl-dspi.c | 15 | ||||
| -rw-r--r-- | drivers/spi/spi-sprd-adi.c | 2 | ||||
| -rw-r--r-- | drivers/spi/spi-sun6i.c | 14 |
3 files changed, 8 insertions, 23 deletions
diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c index 3e0e27731922..c7560d7d1627 100644 --- a/drivers/spi/spi-fsl-dspi.c +++ b/drivers/spi/spi-fsl-dspi.c @@ -1184,20 +1184,7 @@ static int dspi_remove(struct platform_device *pdev) static void dspi_shutdown(struct platform_device *pdev) { - struct spi_controller *ctlr = platform_get_drvdata(pdev); - struct fsl_dspi *dspi = spi_controller_get_devdata(ctlr); - - /* Disable RX and TX */ - regmap_update_bits(dspi->regmap, SPI_MCR, - SPI_MCR_DIS_TXF | SPI_MCR_DIS_RXF, - SPI_MCR_DIS_TXF | SPI_MCR_DIS_RXF); - - /* Stop Running */ - regmap_update_bits(dspi->regmap, SPI_MCR, SPI_MCR_HALT, SPI_MCR_HALT); - - dspi_release_dma(dspi); - clk_disable_unprepare(dspi->clk); - spi_unregister_controller(dspi->ctlr); + dspi_remove(pdev); } static struct platform_driver fsl_dspi_driver = { diff --git a/drivers/spi/spi-sprd-adi.c b/drivers/spi/spi-sprd-adi.c index 9613cfe3c0a2..09f983524d51 100644 --- a/drivers/spi/spi-sprd-adi.c +++ b/drivers/spi/spi-sprd-adi.c @@ -384,9 +384,9 @@ static int sprd_adi_restart_handler(struct notifier_block *this, sprd_adi_write(sadi, sadi->slave_pbase + REG_WDG_LOCK, WDG_UNLOCK_KEY); /* Load the watchdog timeout value, 50ms is always enough. */ + sprd_adi_write(sadi, sadi->slave_pbase + REG_WDG_LOAD_HIGH, 0); sprd_adi_write(sadi, sadi->slave_pbase + REG_WDG_LOAD_LOW, WDG_LOAD_VAL & WDG_LOAD_MASK); - sprd_adi_write(sadi, sadi->slave_pbase + REG_WDG_LOAD_HIGH, 0); /* Start the watchdog to reset system */ sprd_adi_read(sadi, sadi->slave_pbase + REG_WDG_CTRL, &val); diff --git a/drivers/spi/spi-sun6i.c b/drivers/spi/spi-sun6i.c index ec7967be9e2f..956df79035d5 100644 --- a/drivers/spi/spi-sun6i.c +++ b/drivers/spi/spi-sun6i.c @@ -198,7 +198,7 @@ static int sun6i_spi_transfer_one(struct spi_master *master, struct spi_transfer *tfr) { struct sun6i_spi *sspi = spi_master_get_devdata(master); - unsigned int mclk_rate, div, timeout; + unsigned int mclk_rate, div, div_cdr1, div_cdr2, timeout; unsigned int start, end, tx_time; unsigned int trig_level; unsigned int tx_len = 0; @@ -287,14 +287,12 @@ static int sun6i_spi_transfer_one(struct spi_master *master, * First try CDR2, and if we can't reach the expected * frequency, fall back to CDR1. */ - div = mclk_rate / (2 * tfr->speed_hz); - if (div <= (SUN6I_CLK_CTL_CDR2_MASK + 1)) { - if (div > 0) - div--; - - reg = SUN6I_CLK_CTL_CDR2(div) | SUN6I_CLK_CTL_DRS; + div_cdr1 = DIV_ROUND_UP(mclk_rate, tfr->speed_hz); + div_cdr2 = DIV_ROUND_UP(div_cdr1, 2); + if (div_cdr2 <= (SUN6I_CLK_CTL_CDR2_MASK + 1)) { + reg = SUN6I_CLK_CTL_CDR2(div_cdr2 - 1) | SUN6I_CLK_CTL_DRS; } else { - div = ilog2(mclk_rate) - ilog2(tfr->speed_hz); + div = min(SUN6I_CLK_CTL_CDR1_MASK, order_base_2(div_cdr1)); reg = SUN6I_CLK_CTL_CDR1(div); } |