Merge remote-tracking branches 'spi/topic/fsl-dspi', 'spi/topic/imx',...

Merge remote-tracking branches 'spi/topic/fsl-dspi', 'spi/topic/imx', 'spi/topic/jcore', 'spi/topic/meson' and 'spi/topic/orion' into spi-next

Documentation/devicetree/bindings/spi/spi-meson.txt

@@ -27,7 +27,9 @@ The Meson SPICC is generic SPI controller for general purpose Full-Duplex
 communications with dedicated 16 words RX/TX PIO FIFOs.
 
 Required properties:
- - compatible: should be "amlogic,meson-gx-spicc" on Amlogic GX SoCs.
+ - compatible: should be:
+	"amlogic,meson-gx-spicc" on Amlogic GX and compatible SoCs.
+	"amlogic,meson-axg-spicc" on Amlogic AXG and compatible SoCs
  - reg: physical base address and length of the controller registers
  - interrupts: The interrupt specifier
  - clock-names: Must contain "core"

Documentation/devicetree/bindings/spi/spi-orion.txt

@@ -18,8 +18,17 @@ Required properties:
 	The eight register sets following the control registers refer to
 	chip-select lines 0 through 7 respectively.
 - cell-index : Which of multiple SPI controllers is this.
+- clocks : pointers to the reference clocks for this device, the first
+	   one is the one used for the clock on the spi bus, the
+	   second one is optional and is the clock used for the
+	   functional part of the controller
+
 Optional properties:
 - interrupts : Is currently not used.
+- clock-names : names of used clocks, mandatory if the second clock is
+		used, the name must be "core", and "axi" (the latter
+		is only for Armada 7K/8K).
+
 
 Example:
        spi@10600 {

drivers/spi/spi-fsl-dspi.c

@@ -903,10 +903,9 @@ static irqreturn_t dspi_interrupt(int irq, void *dev_id)
 }
 
 static const struct of_device_id fsl_dspi_dt_ids[] = {
-	{ .compatible = "fsl,vf610-dspi", .data = (void *)&vf610_data, },
-	{ .compatible = "fsl,ls1021a-v1.0-dspi",
-		.data = (void *)&ls1021a_v1_data, },
-	{ .compatible = "fsl,ls2085a-dspi", .data = (void *)&ls2085a_data, },
+	{ .compatible = "fsl,vf610-dspi", .data = &vf610_data, },
+	{ .compatible = "fsl,ls1021a-v1.0-dspi", .data = &ls1021a_v1_data, },
+	{ .compatible = "fsl,ls2085a-dspi", .data = &ls2085a_data, },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, fsl_dspi_dt_ids);
@@ -980,7 +979,7 @@ static int dspi_probe(struct platform_device *pdev)
 	master->dev.of_node = pdev->dev.of_node;
 
 	master->cleanup = dspi_cleanup;
-	master->mode_bits = SPI_CPOL | SPI_CPHA;
+	master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_LSB_FIRST;
 	master->bits_per_word_mask = SPI_BPW_MASK(4) | SPI_BPW_MASK(8) |
 					SPI_BPW_MASK(16);
 

drivers/spi/spi-imx.c

@@ -1622,6 +1622,11 @@ static int spi_imx_probe(struct platform_device *pdev)
 	spi_imx->devtype_data->intctrl(spi_imx, 0);
 
 	master->dev.of_node = pdev->dev.of_node;
+	ret = spi_bitbang_start(&spi_imx->bitbang);
+	if (ret) {
+		dev_err(&pdev->dev, "bitbang start failed with %d\n", ret);
+		goto out_clk_put;
+	}
 
 	/* Request GPIO CS lines, if any */
 	if (!spi_imx->slave_mode && master->cs_gpios) {
@@ -1640,12 +1645,6 @@ static int spi_imx_probe(struct platform_device *pdev)
 		}
 	}
 
-	ret = spi_bitbang_start(&spi_imx->bitbang);
-	if (ret) {
-		dev_err(&pdev->dev, "bitbang start failed with %d\n", ret);
-		goto out_clk_put;
-	}
-
 	dev_info(&pdev->dev, "probed\n");
 
 	clk_disable(spi_imx->clk_ipg);

drivers/spi/spi-jcore.c

@@ -198,8 +198,10 @@ static int jcore_spi_probe(struct platform_device *pdev)
 
 	/* Register our spi controller */
 	err = devm_spi_register_master(&pdev->dev, master);
-	if (err)
+	if (err) {
+		clk_disable(clk);
 		goto exit;
+	}
 
 	return 0;
 

drivers/spi/spi-meson-spicc.c

@@ -599,6 +599,7 @@ static int meson_spicc_remove(struct platform_device *pdev)
 
 static const struct of_device_id meson_spicc_of_match[] = {
 	{ .compatible = "amlogic,meson-gx-spicc", },
+	{ .compatible = "amlogic,meson-axg-spicc", },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, meson_spicc_of_match);

drivers/spi/spi-orion.c

@@ -94,6 +94,7 @@ struct orion_spi {
 	struct spi_master	*master;
 	void __iomem		*base;
 	struct clk              *clk;
+	struct clk              *axi_clk;
 	const struct orion_spi_dev *devdata;
 
 	struct orion_direct_acc	direct_access[ORION_NUM_CHIPSELECTS];
@@ -634,6 +635,16 @@ static int orion_spi_probe(struct platform_device *pdev)
 	if (status)
 		goto out;
 
+	/* The following clock is only used by some SoCs */
+	spi->axi_clk = devm_clk_get(&pdev->dev, "axi");
+	if (IS_ERR(spi->axi_clk) &&
+	    PTR_ERR(spi->axi_clk) == -EPROBE_DEFER) {
+		status = -EPROBE_DEFER;
+		goto out_rel_clk;
+	}
+	if (!IS_ERR(spi->axi_clk))
+		clk_prepare_enable(spi->axi_clk);
+
 	tclk_hz = clk_get_rate(spi->clk);
 
 	/*
@@ -658,7 +669,7 @@ static int orion_spi_probe(struct platform_device *pdev)
 	spi->base = devm_ioremap_resource(&pdev->dev, r);
 	if (IS_ERR(spi->base)) {
 		status = PTR_ERR(spi->base);
-		goto out_rel_clk;
+		goto out_rel_axi_clk;
 	}
 
 	/* Scan all SPI devices of this controller for direct mapped devices */
@@ -696,7 +707,7 @@ static int orion_spi_probe(struct platform_device *pdev)
 							    PAGE_SIZE);
 		if (!spi->direct_access[cs].vaddr) {
 			status = -ENOMEM;
-			goto out_rel_clk;
+			goto out_rel_axi_clk;
 		}
 		spi->direct_access[cs].size = PAGE_SIZE;
 
@@ -724,6 +735,8 @@ static int orion_spi_probe(struct platform_device *pdev)
 
 out_rel_pm:
 	pm_runtime_disable(&pdev->dev);
+out_rel_axi_clk:
+	clk_disable_unprepare(spi->axi_clk);
 out_rel_clk:
 	clk_disable_unprepare(spi->clk);
 out:
@@ -738,6 +751,7 @@ static int orion_spi_remove(struct platform_device *pdev)
 	struct orion_spi *spi = spi_master_get_devdata(master);
 
 	pm_runtime_get_sync(&pdev->dev);
+	clk_disable_unprepare(spi->axi_clk);
 	clk_disable_unprepare(spi->clk);
 
 	spi_unregister_master(master);
@@ -754,6 +768,7 @@ static int orion_spi_runtime_suspend(struct device *dev)
 	struct spi_master *master = dev_get_drvdata(dev);
 	struct orion_spi *spi = spi_master_get_devdata(master);
 
+	clk_disable_unprepare(spi->axi_clk);
 	clk_disable_unprepare(spi->clk);
 	return 0;
 }
@@ -763,6 +778,8 @@ static int orion_spi_runtime_resume(struct device *dev)
 	struct spi_master *master = dev_get_drvdata(dev);
 	struct orion_spi *spi = spi_master_get_devdata(master);
 
+	if (!IS_ERR(spi->axi_clk))
+		clk_prepare_enable(spi->axi_clk);
 	return clk_prepare_enable(spi->clk);
 }
 #endif