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Merge remote-tracking branches 'spi/topic/devprop', 'spi/topic/fsl', 'spi/topic/fsl-dspi', 'spi/topic/imx' and 'spi/topic/lantiq' into spi-next
This commit is contained in:
commit
a2d5eda072
@ -23,6 +23,12 @@ See the clock consumer binding,
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Obsolete properties:
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Obsolete properties:
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- fsl,spi-num-chipselects : Contains the number of the chipselect
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- fsl,spi-num-chipselects : Contains the number of the chipselect
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Optional properties:
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- fsl,spi-rdy-drctl: Integer, representing the value of DRCTL, the register
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controlling the SPI_READY handling. Note that to enable the DRCTL consideration,
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the SPI_READY mode-flag needs to be set too.
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Valid values are: 0 (disabled), 1 (edge-triggered burst) and 2 (level-triggered burst).
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Example:
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Example:
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ecspi@70010000 {
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ecspi@70010000 {
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@ -35,4 +41,5 @@ ecspi@70010000 {
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<&gpio3 25 0>; /* GPIO3_25 */
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<&gpio3 25 0>; /* GPIO3_25 */
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dmas = <&sdma 3 7 1>, <&sdma 4 7 2>;
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dmas = <&sdma 3 7 1>, <&sdma 4 7 2>;
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dma-names = "rx", "tx";
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dma-names = "rx", "tx";
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fsl,spi-rdy-drctl = <1>;
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};
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};
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@ -1002,7 +1002,8 @@ static int dspi_probe(struct platform_device *pdev)
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if (IS_ERR(dspi->regmap)) {
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if (IS_ERR(dspi->regmap)) {
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dev_err(&pdev->dev, "failed to init regmap: %ld\n",
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dev_err(&pdev->dev, "failed to init regmap: %ld\n",
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PTR_ERR(dspi->regmap));
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PTR_ERR(dspi->regmap));
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return PTR_ERR(dspi->regmap);
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ret = PTR_ERR(dspi->regmap);
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goto out_master_put;
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}
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}
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dspi_init(dspi);
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dspi_init(dspi);
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@ -814,7 +814,7 @@ static int of_fsl_spi_probe(struct platform_device *ofdev)
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struct device_node *np = ofdev->dev.of_node;
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struct device_node *np = ofdev->dev.of_node;
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struct spi_master *master;
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struct spi_master *master;
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struct resource mem;
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struct resource mem;
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int irq, type;
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int irq = 0, type;
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int ret = -ENOMEM;
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int ret = -ENOMEM;
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ret = of_mpc8xxx_spi_probe(ofdev);
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ret = of_mpc8xxx_spi_probe(ofdev);
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@ -847,6 +847,7 @@ static int of_fsl_spi_probe(struct platform_device *ofdev)
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return 0;
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return 0;
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err:
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err:
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irq_dispose_mapping(irq);
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if (type == TYPE_FSL)
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if (type == TYPE_FSL)
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of_fsl_spi_free_chipselects(dev);
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of_fsl_spi_free_chipselects(dev);
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return ret;
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return ret;
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@ -95,6 +95,7 @@ struct spi_imx_data {
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unsigned int spi_bus_clk;
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unsigned int spi_bus_clk;
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unsigned int bytes_per_word;
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unsigned int bytes_per_word;
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unsigned int spi_drctl;
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unsigned int count;
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unsigned int count;
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void (*tx)(struct spi_imx_data *);
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void (*tx)(struct spi_imx_data *);
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@ -246,6 +247,7 @@ static bool spi_imx_can_dma(struct spi_master *master, struct spi_device *spi,
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#define MX51_ECSPI_CTRL_XCH (1 << 2)
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#define MX51_ECSPI_CTRL_XCH (1 << 2)
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#define MX51_ECSPI_CTRL_SMC (1 << 3)
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#define MX51_ECSPI_CTRL_SMC (1 << 3)
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#define MX51_ECSPI_CTRL_MODE_MASK (0xf << 4)
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#define MX51_ECSPI_CTRL_MODE_MASK (0xf << 4)
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#define MX51_ECSPI_CTRL_DRCTL(drctl) ((drctl) << 16)
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#define MX51_ECSPI_CTRL_POSTDIV_OFFSET 8
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#define MX51_ECSPI_CTRL_POSTDIV_OFFSET 8
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#define MX51_ECSPI_CTRL_PREDIV_OFFSET 12
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#define MX51_ECSPI_CTRL_PREDIV_OFFSET 12
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#define MX51_ECSPI_CTRL_CS(cs) ((cs) << 18)
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#define MX51_ECSPI_CTRL_CS(cs) ((cs) << 18)
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@ -355,6 +357,12 @@ static int mx51_ecspi_config(struct spi_device *spi,
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*/
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*/
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ctrl |= MX51_ECSPI_CTRL_MODE_MASK;
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ctrl |= MX51_ECSPI_CTRL_MODE_MASK;
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/*
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* Enable SPI_RDY handling (falling edge/level triggered).
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*/
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if (spi->mode & SPI_READY)
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ctrl |= MX51_ECSPI_CTRL_DRCTL(spi_imx->spi_drctl);
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/* set clock speed */
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/* set clock speed */
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ctrl |= mx51_ecspi_clkdiv(spi_imx, config->speed_hz, &clk);
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ctrl |= mx51_ecspi_clkdiv(spi_imx, config->speed_hz, &clk);
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spi_imx->spi_bus_clk = clk;
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spi_imx->spi_bus_clk = clk;
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@ -1173,7 +1181,7 @@ static int spi_imx_probe(struct platform_device *pdev)
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struct spi_master *master;
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struct spi_master *master;
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struct spi_imx_data *spi_imx;
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struct spi_imx_data *spi_imx;
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struct resource *res;
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struct resource *res;
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int i, ret, irq;
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int i, ret, irq, spi_drctl;
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if (!np && !mxc_platform_info) {
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if (!np && !mxc_platform_info) {
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dev_err(&pdev->dev, "can't get the platform data\n");
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dev_err(&pdev->dev, "can't get the platform data\n");
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@ -1181,6 +1189,12 @@ static int spi_imx_probe(struct platform_device *pdev)
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}
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}
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master = spi_alloc_master(&pdev->dev, sizeof(struct spi_imx_data));
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master = spi_alloc_master(&pdev->dev, sizeof(struct spi_imx_data));
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ret = of_property_read_u32(np, "fsl,spi-rdy-drctl", &spi_drctl);
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if ((ret < 0) || (spi_drctl >= 0x3)) {
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/* '11' is reserved */
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spi_drctl = 0;
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}
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if (!master)
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if (!master)
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return -ENOMEM;
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return -ENOMEM;
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@ -1216,7 +1230,9 @@ static int spi_imx_probe(struct platform_device *pdev)
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spi_imx->bitbang.master->unprepare_message = spi_imx_unprepare_message;
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spi_imx->bitbang.master->unprepare_message = spi_imx_unprepare_message;
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spi_imx->bitbang.master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH;
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spi_imx->bitbang.master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH;
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if (is_imx35_cspi(spi_imx) || is_imx51_ecspi(spi_imx))
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if (is_imx35_cspi(spi_imx) || is_imx51_ecspi(spi_imx))
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spi_imx->bitbang.master->mode_bits |= SPI_LOOP;
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spi_imx->bitbang.master->mode_bits |= SPI_LOOP | SPI_READY;
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spi_imx->spi_drctl = spi_drctl;
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init_completion(&spi_imx->xfer_done);
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init_completion(&spi_imx->xfer_done);
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@ -977,7 +977,6 @@ static struct platform_driver lantiq_ssc_driver = {
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.remove = lantiq_ssc_remove,
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.remove = lantiq_ssc_remove,
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.driver = {
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.driver = {
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.name = "spi-lantiq-ssc",
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.name = "spi-lantiq-ssc",
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.owner = THIS_MODULE,
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.of_match_table = lantiq_ssc_match,
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.of_match_table = lantiq_ssc_match,
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},
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},
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};
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};
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@ -31,6 +31,7 @@
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#include <linux/of_gpio.h>
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#include <linux/of_gpio.h>
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#include <linux/pm_runtime.h>
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#include <linux/pm_runtime.h>
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#include <linux/pm_domain.h>
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#include <linux/pm_domain.h>
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#include <linux/property.h>
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#include <linux/export.h>
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#include <linux/export.h>
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#include <linux/sched/rt.h>
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#include <linux/sched/rt.h>
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#include <uapi/linux/sched/types.h>
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#include <uapi/linux/sched/types.h>
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@ -600,13 +601,28 @@ struct spi_device *spi_new_device(struct spi_master *master,
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proxy->controller_data = chip->controller_data;
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proxy->controller_data = chip->controller_data;
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proxy->controller_state = NULL;
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proxy->controller_state = NULL;
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status = spi_add_device(proxy);
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if (chip->properties) {
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if (status < 0) {
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status = device_add_properties(&proxy->dev, chip->properties);
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spi_dev_put(proxy);
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if (status) {
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return NULL;
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dev_err(&master->dev,
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"failed to add properties to '%s': %d\n",
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chip->modalias, status);
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goto err_dev_put;
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}
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}
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}
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status = spi_add_device(proxy);
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if (status < 0)
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goto err_remove_props;
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return proxy;
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return proxy;
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err_remove_props:
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if (chip->properties)
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device_remove_properties(&proxy->dev);
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err_dev_put:
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spi_dev_put(proxy);
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return NULL;
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}
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}
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EXPORT_SYMBOL_GPL(spi_new_device);
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EXPORT_SYMBOL_GPL(spi_new_device);
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@ -664,6 +680,7 @@ static void spi_match_master_to_boardinfo(struct spi_master *master,
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*
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*
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* The board info passed can safely be __initdata ... but be careful of
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* The board info passed can safely be __initdata ... but be careful of
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* any embedded pointers (platform_data, etc), they're copied as-is.
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* any embedded pointers (platform_data, etc), they're copied as-is.
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* Device properties are deep-copied though.
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*
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*
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* Return: zero on success, else a negative error code.
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* Return: zero on success, else a negative error code.
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*/
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*/
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@ -673,7 +690,7 @@ int spi_register_board_info(struct spi_board_info const *info, unsigned n)
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int i;
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int i;
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if (!n)
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if (!n)
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return -EINVAL;
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return 0;
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bi = kcalloc(n, sizeof(*bi), GFP_KERNEL);
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bi = kcalloc(n, sizeof(*bi), GFP_KERNEL);
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if (!bi)
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if (!bi)
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@ -683,6 +700,13 @@ int spi_register_board_info(struct spi_board_info const *info, unsigned n)
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struct spi_master *master;
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struct spi_master *master;
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memcpy(&bi->board_info, info, sizeof(*info));
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memcpy(&bi->board_info, info, sizeof(*info));
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if (info->properties) {
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bi->board_info.properties =
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property_entries_dup(info->properties);
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if (IS_ERR(bi->board_info.properties))
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return PTR_ERR(bi->board_info.properties);
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}
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mutex_lock(&board_lock);
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mutex_lock(&board_lock);
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list_add_tail(&bi->list, &board_list);
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list_add_tail(&bi->list, &board_list);
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list_for_each_entry(master, &spi_master_list, list)
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list_for_each_entry(master, &spi_master_list, list)
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@ -23,6 +23,7 @@
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#include <linux/scatterlist.h>
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#include <linux/scatterlist.h>
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struct dma_chan;
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struct dma_chan;
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struct property_entry;
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struct spi_master;
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struct spi_master;
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struct spi_transfer;
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struct spi_transfer;
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struct spi_flash_read_message;
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struct spi_flash_read_message;
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@ -1209,6 +1210,7 @@ int spi_flash_read(struct spi_device *spi,
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* @modalias: Initializes spi_device.modalias; identifies the driver.
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* @modalias: Initializes spi_device.modalias; identifies the driver.
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* @platform_data: Initializes spi_device.platform_data; the particular
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* @platform_data: Initializes spi_device.platform_data; the particular
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* data stored there is driver-specific.
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* data stored there is driver-specific.
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* @properties: Additional device properties for the device.
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* @controller_data: Initializes spi_device.controller_data; some
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* @controller_data: Initializes spi_device.controller_data; some
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* controllers need hints about hardware setup, e.g. for DMA.
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* controllers need hints about hardware setup, e.g. for DMA.
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* @irq: Initializes spi_device.irq; depends on how the board is wired.
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* @irq: Initializes spi_device.irq; depends on how the board is wired.
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@ -1241,10 +1243,12 @@ struct spi_board_info {
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*
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*
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* platform_data goes to spi_device.dev.platform_data,
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* platform_data goes to spi_device.dev.platform_data,
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* controller_data goes to spi_device.controller_data,
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* controller_data goes to spi_device.controller_data,
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* device properties are copied and attached to spi_device,
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* irq is copied too
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* irq is copied too
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*/
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*/
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char modalias[SPI_NAME_SIZE];
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char modalias[SPI_NAME_SIZE];
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const void *platform_data;
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const void *platform_data;
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const struct property_entry *properties;
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void *controller_data;
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void *controller_data;
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int irq;
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int irq;
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