diff options
Diffstat (limited to 'drivers/spi/spi-meson-spifc.c')
| -rw-r--r-- | drivers/spi/spi-meson-spifc.c | 79 |
1 files changed, 34 insertions, 45 deletions
diff --git a/drivers/spi/spi-meson-spifc.c b/drivers/spi/spi-meson-spifc.c index 06626f406..fd8b26dd4 100644 --- a/drivers/spi/spi-meson-spifc.c +++ b/drivers/spi/spi-meson-spifc.c @@ -67,13 +67,13 @@ /** * struct meson_spifc - * @master: the SPI master + * @host: the SPI host * @regmap: regmap for device registers * @clk: input clock of the built-in baud rate generator * @dev: the device structure */ struct meson_spifc { - struct spi_master *master; + struct spi_controller *host; struct regmap *regmap; struct clk *clk; struct device *dev; @@ -237,16 +237,16 @@ static int meson_spifc_txrx(struct meson_spifc *spifc, /** * meson_spifc_transfer_one() - perform a single transfer - * @master: the SPI master + * @host: the SPI host * @spi: the SPI device * @xfer: the current SPI transfer * Return: 0 on success, a negative value on error */ -static int meson_spifc_transfer_one(struct spi_master *master, +static int meson_spifc_transfer_one(struct spi_controller *host, struct spi_device *spi, struct spi_transfer *xfer) { - struct meson_spifc *spifc = spi_master_get_devdata(master); + struct meson_spifc *spifc = spi_controller_get_devdata(host); int len, done = 0, ret = 0; meson_spifc_setup_speed(spifc, xfer->speed_hz); @@ -256,7 +256,7 @@ static int meson_spifc_transfer_one(struct spi_master *master, while (done < xfer->len && !ret) { len = min_t(int, xfer->len - done, SPIFC_BUFFER_SIZE); ret = meson_spifc_txrx(spifc, xfer, done, len, - spi_transfer_is_last(master, xfer), + spi_transfer_is_last(host, xfer), done + len >= xfer->len); done += len; } @@ -284,19 +284,19 @@ static void meson_spifc_hw_init(struct meson_spifc *spifc) static int meson_spifc_probe(struct platform_device *pdev) { - struct spi_master *master; + struct spi_controller *host; struct meson_spifc *spifc; void __iomem *base; unsigned int rate; int ret = 0; - master = spi_alloc_master(&pdev->dev, sizeof(struct meson_spifc)); - if (!master) + host = spi_alloc_host(&pdev->dev, sizeof(struct meson_spifc)); + if (!host) return -ENOMEM; - platform_set_drvdata(pdev, master); + platform_set_drvdata(pdev, host); - spifc = spi_master_get_devdata(master); + spifc = spi_controller_get_devdata(host); spifc->dev = &pdev->dev; base = devm_platform_ioremap_resource(pdev, 0); @@ -312,67 +312,56 @@ static int meson_spifc_probe(struct platform_device *pdev) goto out_err; } - spifc->clk = devm_clk_get(spifc->dev, NULL); + spifc->clk = devm_clk_get_enabled(spifc->dev, NULL); if (IS_ERR(spifc->clk)) { dev_err(spifc->dev, "missing clock\n"); ret = PTR_ERR(spifc->clk); goto out_err; } - ret = clk_prepare_enable(spifc->clk); - if (ret) { - dev_err(spifc->dev, "can't prepare clock\n"); - goto out_err; - } - rate = clk_get_rate(spifc->clk); - master->num_chipselect = 1; - master->dev.of_node = pdev->dev.of_node; - master->bits_per_word_mask = SPI_BPW_MASK(8); - master->auto_runtime_pm = true; - master->transfer_one = meson_spifc_transfer_one; - master->min_speed_hz = rate >> 6; - master->max_speed_hz = rate >> 1; + host->num_chipselect = 1; + host->dev.of_node = pdev->dev.of_node; + host->bits_per_word_mask = SPI_BPW_MASK(8); + host->auto_runtime_pm = true; + host->transfer_one = meson_spifc_transfer_one; + host->min_speed_hz = rate >> 6; + host->max_speed_hz = rate >> 1; meson_spifc_hw_init(spifc); pm_runtime_set_active(spifc->dev); pm_runtime_enable(spifc->dev); - ret = devm_spi_register_master(spifc->dev, master); + ret = devm_spi_register_controller(spifc->dev, host); if (ret) { - dev_err(spifc->dev, "failed to register spi master\n"); - goto out_clk; + dev_err(spifc->dev, "failed to register spi host\n"); + goto out_pm; } return 0; -out_clk: - clk_disable_unprepare(spifc->clk); +out_pm: pm_runtime_disable(spifc->dev); out_err: - spi_master_put(master); + spi_controller_put(host); return ret; } static void meson_spifc_remove(struct platform_device *pdev) { - struct spi_master *master = platform_get_drvdata(pdev); - struct meson_spifc *spifc = spi_master_get_devdata(master); - pm_runtime_get_sync(&pdev->dev); - clk_disable_unprepare(spifc->clk); pm_runtime_disable(&pdev->dev); } #ifdef CONFIG_PM_SLEEP static int meson_spifc_suspend(struct device *dev) { - struct spi_master *master = dev_get_drvdata(dev); - struct meson_spifc *spifc = spi_master_get_devdata(master); + struct spi_controller *host = dev_get_drvdata(dev); + struct meson_spifc *spifc = spi_controller_get_devdata(host); int ret; - ret = spi_master_suspend(master); + ret = spi_controller_suspend(host); if (ret) return ret; @@ -384,8 +373,8 @@ static int meson_spifc_suspend(struct device *dev) static int meson_spifc_resume(struct device *dev) { - struct spi_master *master = dev_get_drvdata(dev); - struct meson_spifc *spifc = spi_master_get_devdata(master); + struct spi_controller *host = dev_get_drvdata(dev); + struct meson_spifc *spifc = spi_controller_get_devdata(host); int ret; if (!pm_runtime_suspended(dev)) { @@ -396,7 +385,7 @@ static int meson_spifc_resume(struct device *dev) meson_spifc_hw_init(spifc); - ret = spi_master_resume(master); + ret = spi_controller_resume(host); if (ret) clk_disable_unprepare(spifc->clk); @@ -407,8 +396,8 @@ static int meson_spifc_resume(struct device *dev) #ifdef CONFIG_PM static int meson_spifc_runtime_suspend(struct device *dev) { - struct spi_master *master = dev_get_drvdata(dev); - struct meson_spifc *spifc = spi_master_get_devdata(master); + struct spi_controller *host = dev_get_drvdata(dev); + struct meson_spifc *spifc = spi_controller_get_devdata(host); clk_disable_unprepare(spifc->clk); @@ -417,8 +406,8 @@ static int meson_spifc_runtime_suspend(struct device *dev) static int meson_spifc_runtime_resume(struct device *dev) { - struct spi_master *master = dev_get_drvdata(dev); - struct meson_spifc *spifc = spi_master_get_devdata(master); + struct spi_controller *host = dev_get_drvdata(dev); + struct meson_spifc *spifc = spi_controller_get_devdata(host); return clk_prepare_enable(spifc->clk); } |