Merge remote-tracking branches 'spi/topic/fsl-espi', 'spi/topic/gpio', 'spi/topic/hspi', 'spi/topic/mpc512x', 'spi/topic/msiof', 'spi/topic/nuc900', 'spi/topic/oc-tiny', 'spi/topic/omap', 'spi/topic/orion' and 'spi/topic/pci' into spi-linus

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

@@ -67,7 +67,7 @@ only 1(SINGLE), 2(DUAL) and 4(QUAD).
 Dual/Quad mode is not allowed when 3-wire mode is used.
 
 If a gpio chipselect is used for the SPI slave the gpio number will be passed
-via the cs_gpio
+via the SPI master node cs-gpios property.
 
 SPI example for an MPC5200 SPI bus:
 	spi@f00 {

drivers/spi/Kconfig

@@ -307,6 +307,7 @@ config SPI_OMAP_UWIRE
 
 config SPI_OMAP24XX
 	tristate "McSPI driver for OMAP"
+	depends on ARM || ARM64 || AVR32 || HEXAGON || MIPS || SH
 	depends on ARCH_OMAP2PLUS || COMPILE_TEST
 	help
 	  SPI master controller for OMAP24XX and later Multichannel SPI
@@ -413,7 +414,8 @@ config SPI_SC18IS602
 
 config SPI_SH_MSIOF
 	tristate "SuperH MSIOF SPI controller"
-	depends on (SUPERH || ARCH_SHMOBILE) && HAVE_CLK
+	depends on HAVE_CLK
+	depends on SUPERH || ARCH_SHMOBILE || COMPILE_TEST
 	select SPI_BITBANG
 	help
 	  SPI driver for SuperH and SH Mobile MSIOF blocks.

drivers/spi/spi-dw-pci.c

@@ -125,7 +125,7 @@ static int spi_resume(struct pci_dev *pdev)
 #define spi_resume	NULL
 #endif
 
-static DEFINE_PCI_DEVICE_TABLE(pci_ids) = {
+static const struct pci_device_id pci_ids[] = {
 	/* Intel MID platform SPI controller 0 */
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0800) },
 	{},

drivers/spi/spi-fsl-espi.c

@@ -705,7 +705,7 @@ static int of_fsl_espi_probe(struct platform_device *ofdev)
 		goto err;
 
 	irq = irq_of_parse_and_map(np, 0);
-	if (!ret) {
+	if (!irq) {
 		ret = -EINVAL;
 		goto err;
 	}
@@ -727,6 +727,66 @@ static int of_fsl_espi_remove(struct platform_device *dev)
 	return mpc8xxx_spi_remove(&dev->dev);
 }
 
+#ifdef CONFIG_PM_SLEEP
+static int of_fsl_espi_suspend(struct device *dev)
+{
+	struct spi_master *master = dev_get_drvdata(dev);
+	struct mpc8xxx_spi *mpc8xxx_spi;
+	struct fsl_espi_reg *reg_base;
+	u32 regval;
+	int ret;
+
+	mpc8xxx_spi = spi_master_get_devdata(master);
+	reg_base = mpc8xxx_spi->reg_base;
+
+	ret = spi_master_suspend(master);
+	if (ret) {
+		dev_warn(dev, "cannot suspend master\n");
+		return ret;
+	}
+
+	regval = mpc8xxx_spi_read_reg(&reg_base->mode);
+	regval &= ~SPMODE_ENABLE;
+	mpc8xxx_spi_write_reg(&reg_base->mode, regval);
+
+	return 0;
+}
+
+static int of_fsl_espi_resume(struct device *dev)
+{
+	struct fsl_spi_platform_data *pdata = dev_get_platdata(dev);
+	struct spi_master *master = dev_get_drvdata(dev);
+	struct mpc8xxx_spi *mpc8xxx_spi;
+	struct fsl_espi_reg *reg_base;
+	u32 regval;
+	int i;
+
+	mpc8xxx_spi = spi_master_get_devdata(master);
+	reg_base = mpc8xxx_spi->reg_base;
+
+	/* SPI controller initializations */
+	mpc8xxx_spi_write_reg(&reg_base->mode, 0);
+	mpc8xxx_spi_write_reg(&reg_base->mask, 0);
+	mpc8xxx_spi_write_reg(&reg_base->command, 0);
+	mpc8xxx_spi_write_reg(&reg_base->event, 0xffffffff);
+
+	/* Init eSPI CS mode register */
+	for (i = 0; i < pdata->max_chipselect; i++)
+		mpc8xxx_spi_write_reg(&reg_base->csmode[i], CSMODE_INIT_VAL);
+
+	/* Enable SPI interface */
+	regval = pdata->initial_spmode | SPMODE_INIT_VAL | SPMODE_ENABLE;
+
+	mpc8xxx_spi_write_reg(&reg_base->mode, regval);
+
+	return spi_master_resume(master);
+}
+#endif /* CONFIG_PM_SLEEP */
+
+static const struct dev_pm_ops espi_pm = {
+	SET_SYSTEM_SLEEP_PM_OPS(of_fsl_espi_suspend, of_fsl_espi_resume)
+};
+
 static const struct of_device_id of_fsl_espi_match[] = {
 	{ .compatible = "fsl,mpc8536-espi" },
 	{}
@@ -738,6 +798,7 @@ static struct platform_driver fsl_espi_driver = {
 		.name = "fsl_espi",
 		.owner = THIS_MODULE,
 		.of_match_table = of_fsl_espi_match,
+		.pm = &espi_pm,
 	},
 	.probe		= of_fsl_espi_probe,
 	.remove		= of_fsl_espi_remove,

drivers/spi/spi-gpio.c

@@ -115,17 +115,17 @@ spi_to_pdata(const struct spi_device *spi)
 
 static inline void setsck(const struct spi_device *spi, int is_on)
 {
-	gpio_set_value(SPI_SCK_GPIO, is_on);
+	gpio_set_value_cansleep(SPI_SCK_GPIO, is_on);
 }
 
 static inline void setmosi(const struct spi_device *spi, int is_on)
 {
-	gpio_set_value(SPI_MOSI_GPIO, is_on);
+	gpio_set_value_cansleep(SPI_MOSI_GPIO, is_on);
 }
 
 static inline int getmiso(const struct spi_device *spi)
 {
-	return !!gpio_get_value(SPI_MISO_GPIO);
+	return !!gpio_get_value_cansleep(SPI_MISO_GPIO);
 }
 
 #undef pdata
@@ -229,7 +229,7 @@ static void spi_gpio_chipselect(struct spi_device *spi, int is_active)
 
 	if (cs != SPI_GPIO_NO_CHIPSELECT) {
 		/* SPI is normally active-low */
-		gpio_set_value(cs, (spi->mode & SPI_CS_HIGH) ? is_active : !is_active);
+		gpio_set_value_cansleep(cs, (spi->mode & SPI_CS_HIGH) ? is_active : !is_active);
 	}
 }
 

drivers/spi/spi-mpc512x-psc.c

@@ -504,7 +504,7 @@ static int mpc512x_psc_spi_do_probe(struct device *dev, u32 regaddr,
 	master->cleanup = mpc512x_psc_spi_cleanup;
 	master->dev.of_node = dev->of_node;
 
-	tempp = ioremap(regaddr, size);
+	tempp = devm_ioremap(dev, regaddr, size);
 	if (!tempp) {
 		dev_err(dev, "could not ioremap I/O port range\n");
 		ret = -EFAULT;
@@ -513,9 +513,8 @@ static int mpc512x_psc_spi_do_probe(struct device *dev, u32 regaddr,
 	mps->psc = tempp;
 	mps->fifo =
 		(struct mpc512x_psc_fifo *)(tempp + sizeof(struct mpc52xx_psc));
-
+	ret = devm_request_irq(dev, mps->irq, mpc512x_psc_spi_isr, IRQF_SHARED,
-	ret = request_irq(mps->irq, mpc512x_psc_spi_isr, IRQF_SHARED,
+				"mpc512x-psc-spi", mps);
-			  "mpc512x-psc-spi", mps);
 	if (ret)
 		goto free_master;
 	init_completion(&mps->txisrdone);
@@ -525,11 +524,11 @@ static int mpc512x_psc_spi_do_probe(struct device *dev, u32 regaddr,
 	clk = devm_clk_get(dev, clk_name);
 	if (IS_ERR(clk)) {
 		ret = PTR_ERR(clk);
-		goto free_irq;
+		goto free_master;
 	}
 	ret = clk_prepare_enable(clk);
 	if (ret)
-		goto free_irq;
+		goto free_master;
 	mps->clk_mclk = clk;
 	mps->mclk_rate = clk_get_rate(clk);
 
@@ -545,11 +544,7 @@ static int mpc512x_psc_spi_do_probe(struct device *dev, u32 regaddr,
 
 free_clock:
 	clk_disable_unprepare(mps->clk_mclk);
-free_irq:
-	free_irq(mps->irq, mps);
 free_master:
-	if (mps->psc)
-		iounmap(mps->psc);
 	spi_master_put(master);
 
 	return ret;
@@ -561,9 +556,6 @@ static int mpc512x_psc_spi_do_remove(struct device *dev)
 	struct mpc512x_psc_spi *mps = spi_master_get_devdata(master);
 
 	clk_disable_unprepare(mps->clk_mclk);
-	free_irq(mps->irq, mps);
-	if (mps->psc)
-		iounmap(mps->psc);
 
 	return 0;
 }

drivers/spi/spi-nuc900.c

@@ -57,7 +57,6 @@ struct nuc900_spi {
 	const unsigned char	*tx;
 	unsigned char		*rx;
 	struct clk		*clk;
-	struct resource		*ioarea;
 	struct spi_master	*master;
 	struct spi_device	*curdev;
 	struct device		*dev;
@@ -344,8 +343,7 @@ static int nuc900_spi_probe(struct platform_device *pdev)
 	master = spi_alloc_master(&pdev->dev, sizeof(struct nuc900_spi));
 	if (master == NULL) {
 		dev_err(&pdev->dev, "No memory for spi_master\n");
-		err = -ENOMEM;
+		return -ENOMEM;
-		goto err_nomem;
 	}
 
 	hw = spi_master_get_devdata(master);
@@ -370,46 +368,31 @@ static int nuc900_spi_probe(struct platform_device *pdev)
 	hw->bitbang.txrx_bufs      = nuc900_spi_txrx;
 
 	hw->res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (hw->res == NULL) {
+	hw->regs = devm_ioremap_resource(&pdev->dev, hw->res);
-		dev_err(&pdev->dev, "Cannot get IORESOURCE_MEM\n");
+	if (IS_ERR(hw->regs)) {
-		err = -ENOENT;
+		err = PTR_ERR(hw->regs);
 		goto err_pdata;
 	}
 
-	hw->ioarea = request_mem_region(hw->res->start,
-					resource_size(hw->res), pdev->name);
-
-	if (hw->ioarea == NULL) {
-		dev_err(&pdev->dev, "Cannot reserve region\n");
-		err = -ENXIO;
-		goto err_pdata;
-	}
-
-	hw->regs = ioremap(hw->res->start, resource_size(hw->res));
-	if (hw->regs == NULL) {
-		dev_err(&pdev->dev, "Cannot map IO\n");
-		err = -ENXIO;
-		goto err_iomap;
-	}
-
 	hw->irq = platform_get_irq(pdev, 0);
 	if (hw->irq < 0) {
 		dev_err(&pdev->dev, "No IRQ specified\n");
 		err = -ENOENT;
-		goto err_irq;
+		goto err_pdata;
 	}
 
-	err = request_irq(hw->irq, nuc900_spi_irq, 0, pdev->name, hw);
+	err = devm_request_irq(&pdev->dev, hw->irq, nuc900_spi_irq, 0,
+				pdev->name, hw);
 	if (err) {
 		dev_err(&pdev->dev, "Cannot claim IRQ\n");
-		goto err_irq;
+		goto err_pdata;
 	}
 
-	hw->clk = clk_get(&pdev->dev, "spi");
+	hw->clk = devm_clk_get(&pdev->dev, "spi");
 	if (IS_ERR(hw->clk)) {
 		dev_err(&pdev->dev, "No clock for device\n");
 		err = PTR_ERR(hw->clk);
-		goto err_clk;
+		goto err_pdata;
 	}
 
 	mfp_set_groupg(&pdev->dev, NULL);
@@ -425,17 +408,8 @@ static int nuc900_spi_probe(struct platform_device *pdev)
 
 err_register:
 	clk_disable(hw->clk);
-	clk_put(hw->clk);
-err_clk:
-	free_irq(hw->irq, hw);
-err_irq:
-	iounmap(hw->regs);
-err_iomap:
-	release_mem_region(hw->res->start, resource_size(hw->res));
-	kfree(hw->ioarea);
 err_pdata:
 	spi_master_put(hw->master);
-err_nomem:
 	return err;
 }
 
@@ -443,18 +417,8 @@ static int nuc900_spi_remove(struct platform_device *dev)
 {
 	struct nuc900_spi *hw = platform_get_drvdata(dev);
 
-	free_irq(hw->irq, hw);
-
 	spi_bitbang_stop(&hw->bitbang);
-
 	clk_disable(hw->clk);
-	clk_put(hw->clk);
-
-	iounmap(hw->regs);
-
-	release_mem_region(hw->res->start, resource_size(hw->res));
-	kfree(hw->ioarea);
-
 	spi_master_put(hw->master);
 	return 0;
 }

drivers/spi/spi-oc-tiny.c

@@ -153,62 +153,22 @@ static int tiny_spi_txrx_bufs(struct spi_device *spi, struct spi_transfer *t)
 		}
 
 		wait_for_completion(&hw->done);
-	} else if (txp && rxp) {
-		/* we need to tighten the transfer loop */
-		writeb(*txp++, hw->base + TINY_SPI_TXDATA);
-		if (t->len > 1) {
-			writeb(*txp++, hw->base + TINY_SPI_TXDATA);
-			for (i = 2; i < t->len; i++) {
-				u8 rx, tx = *txp++;
-				tiny_spi_wait_txr(hw);
-				rx = readb(hw->base + TINY_SPI_TXDATA);
-				writeb(tx, hw->base + TINY_SPI_TXDATA);
-				*rxp++ = rx;
-			}
-			tiny_spi_wait_txr(hw);
-			*rxp++ = readb(hw->base + TINY_SPI_TXDATA);
-		}
-		tiny_spi_wait_txe(hw);
-		*rxp++ = readb(hw->base + TINY_SPI_RXDATA);
-	} else if (rxp) {
-		writeb(0, hw->base + TINY_SPI_TXDATA);
-		if (t->len > 1) {
-			writeb(0,
-			       hw->base + TINY_SPI_TXDATA);
-			for (i = 2; i < t->len; i++) {
-				u8 rx;
-				tiny_spi_wait_txr(hw);
-				rx = readb(hw->base + TINY_SPI_TXDATA);
-				writeb(0, hw->base + TINY_SPI_TXDATA);
-				*rxp++ = rx;
-			}
-			tiny_spi_wait_txr(hw);
-			*rxp++ = readb(hw->base + TINY_SPI_TXDATA);
-		}
-		tiny_spi_wait_txe(hw);
-		*rxp++ = readb(hw->base + TINY_SPI_RXDATA);
-	} else if (txp) {
-		writeb(*txp++, hw->base + TINY_SPI_TXDATA);
-		if (t->len > 1) {
-			writeb(*txp++, hw->base + TINY_SPI_TXDATA);
-			for (i = 2; i < t->len; i++) {
-				u8 tx = *txp++;
-				tiny_spi_wait_txr(hw);
-				writeb(tx, hw->base + TINY_SPI_TXDATA);
-			}
-		}
-		tiny_spi_wait_txe(hw);
 	} else {
-		writeb(0, hw->base + TINY_SPI_TXDATA);
+		/* we need to tighten the transfer loop */
-		if (t->len > 1) {
+		writeb(txp ? *txp++ : 0, hw->base + TINY_SPI_TXDATA);
-			writeb(0, hw->base + TINY_SPI_TXDATA);
+		for (i = 1; i < t->len; i++) {
-			for (i = 2; i < t->len; i++) {
+			writeb(txp ? *txp++ : 0, hw->base + TINY_SPI_TXDATA);
+
+			if (rxp || (i != t->len - 1))
 				tiny_spi_wait_txr(hw);
-				writeb(0, hw->base + TINY_SPI_TXDATA);
+			if (rxp)
-			}
+				*rxp++ = readb(hw->base + TINY_SPI_TXDATA);
 		}
 		tiny_spi_wait_txe(hw);
+		if (rxp)
+			*rxp++ = readb(hw->base + TINY_SPI_RXDATA);
 	}
+
 	return t->len;
 }
 

drivers/spi/spi-omap-100k.c

@@ -470,31 +470,12 @@ static int omap1_spi100k_probe(struct platform_device *pdev)
 	return status;
 }
 
-static int omap1_spi100k_remove(struct platform_device *pdev)
-{
-	struct spi_master       *master;
-	struct omap1_spi100k    *spi100k;
-	struct resource         *r;
-	int			status = 0;
-
-	master = platform_get_drvdata(pdev);
-	spi100k = spi_master_get_devdata(master);
-
-	if (status != 0)
-		return status;
-
-	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-
-	return 0;
-}
-
 static struct platform_driver omap1_spi100k_driver = {
 	.driver = {
 		.name		= "omap1_spi100k",
 		.owner		= THIS_MODULE,
 	},
 	.probe		= omap1_spi100k_probe,
-	.remove		= omap1_spi100k_remove,
 };
 
 module_platform_driver(omap1_spi100k_driver);
@@ -502,4 +483,3 @@ module_platform_driver(omap1_spi100k_driver);
 MODULE_DESCRIPTION("OMAP7xx SPI 100k controller driver");
 MODULE_AUTHOR("Fabrice Crohas <fcrohas@gmail.com>");
 MODULE_LICENSE("GPL");
-

drivers/spi/spi-omap2-mcspi.c

@@ -157,14 +157,14 @@ static inline void mcspi_write_reg(struct spi_master *master,
 {
 	struct omap2_mcspi *mcspi = spi_master_get_devdata(master);
 
-	__raw_writel(val, mcspi->base + idx);
+	writel_relaxed(val, mcspi->base + idx);
 }
 
 static inline u32 mcspi_read_reg(struct spi_master *master, int idx)
 {
 	struct omap2_mcspi *mcspi = spi_master_get_devdata(master);
 
-	return __raw_readl(mcspi->base + idx);
+	return readl_relaxed(mcspi->base + idx);
 }
 
 static inline void mcspi_write_cs_reg(const struct spi_device *spi,
@@ -172,14 +172,14 @@ static inline void mcspi_write_cs_reg(const struct spi_device *spi,
 {
 	struct omap2_mcspi_cs	*cs = spi->controller_state;
 
-	__raw_writel(val, cs->base +  idx);
+	writel_relaxed(val, cs->base +  idx);
 }
 
 static inline u32 mcspi_read_cs_reg(const struct spi_device *spi, int idx)
 {
 	struct omap2_mcspi_cs	*cs = spi->controller_state;
 
-	return __raw_readl(cs->base + idx);
+	return readl_relaxed(cs->base + idx);
 }
 
 static inline u32 mcspi_cached_chconf0(const struct spi_device *spi)
@@ -338,7 +338,7 @@ static void omap2_mcspi_restore_ctx(struct omap2_mcspi *mcspi)
 	mcspi_write_reg(spi_cntrl, OMAP2_MCSPI_WAKEUPENABLE, ctx->wakeupenable);
 
 	list_for_each_entry(cs, &ctx->cs, node)
-		__raw_writel(cs->chconf0, cs->base + OMAP2_MCSPI_CHCONF0);
+		writel_relaxed(cs->chconf0, cs->base + OMAP2_MCSPI_CHCONF0);
 }
 
 static int mcspi_wait_for_reg_bit(void __iomem *reg, unsigned long bit)
@@ -346,9 +346,9 @@ static int mcspi_wait_for_reg_bit(void __iomem *reg, unsigned long bit)
 	unsigned long timeout;
 
 	timeout = jiffies + msecs_to_jiffies(1000);
-	while (!(__raw_readl(reg) & bit)) {
+	while (!(readl_relaxed(reg) & bit)) {
 		if (time_after(jiffies, timeout)) {
-			if (!(__raw_readl(reg) & bit))
+			if (!(readl_relaxed(reg) & bit))
 				return -ETIMEDOUT;
 			else
 				return 0;
@@ -675,7 +675,7 @@ omap2_mcspi_txrx_pio(struct spi_device *spi, struct spi_transfer *xfer)
 				}
 				dev_vdbg(&spi->dev, "write-%d %02x\n",
 						word_len, *tx);
-				__raw_writel(*tx++, tx_reg);
+				writel_relaxed(*tx++, tx_reg);
 			}
 			if (rx != NULL) {
 				if (mcspi_wait_for_reg_bit(chstat_reg,
@@ -687,7 +687,7 @@ omap2_mcspi_txrx_pio(struct spi_device *spi, struct spi_transfer *xfer)
 				if (c == 1 && tx == NULL &&
 				    (l & OMAP2_MCSPI_CHCONF_TURBO)) {
 					omap2_mcspi_set_enable(spi, 0);
-					*rx++ = __raw_readl(rx_reg);
+					*rx++ = readl_relaxed(rx_reg);
 					dev_vdbg(&spi->dev, "read-%d %02x\n",
 						    word_len, *(rx - 1));
 					if (mcspi_wait_for_reg_bit(chstat_reg,
@@ -701,7 +701,7 @@ omap2_mcspi_txrx_pio(struct spi_device *spi, struct spi_transfer *xfer)
 					omap2_mcspi_set_enable(spi, 0);
 				}
 
-				*rx++ = __raw_readl(rx_reg);
+				*rx++ = readl_relaxed(rx_reg);
 				dev_vdbg(&spi->dev, "read-%d %02x\n",
 						word_len, *(rx - 1));
 			}
@@ -722,7 +722,7 @@ omap2_mcspi_txrx_pio(struct spi_device *spi, struct spi_transfer *xfer)
 				}
 				dev_vdbg(&spi->dev, "write-%d %04x\n",
 						word_len, *tx);
-				__raw_writel(*tx++, tx_reg);
+				writel_relaxed(*tx++, tx_reg);
 			}
 			if (rx != NULL) {
 				if (mcspi_wait_for_reg_bit(chstat_reg,
@@ -734,7 +734,7 @@ omap2_mcspi_txrx_pio(struct spi_device *spi, struct spi_transfer *xfer)
 				if (c == 2 && tx == NULL &&
 				    (l & OMAP2_MCSPI_CHCONF_TURBO)) {
 					omap2_mcspi_set_enable(spi, 0);
-					*rx++ = __raw_readl(rx_reg);
+					*rx++ = readl_relaxed(rx_reg);
 					dev_vdbg(&spi->dev, "read-%d %04x\n",
 						    word_len, *(rx - 1));
 					if (mcspi_wait_for_reg_bit(chstat_reg,
@@ -748,7 +748,7 @@ omap2_mcspi_txrx_pio(struct spi_device *spi, struct spi_transfer *xfer)
 					omap2_mcspi_set_enable(spi, 0);
 				}
 
-				*rx++ = __raw_readl(rx_reg);
+				*rx++ = readl_relaxed(rx_reg);
 				dev_vdbg(&spi->dev, "read-%d %04x\n",
 						word_len, *(rx - 1));
 			}
@@ -769,7 +769,7 @@ omap2_mcspi_txrx_pio(struct spi_device *spi, struct spi_transfer *xfer)
 				}
 				dev_vdbg(&spi->dev, "write-%d %08x\n",
 						word_len, *tx);
-				__raw_writel(*tx++, tx_reg);
+				writel_relaxed(*tx++, tx_reg);
 			}
 			if (rx != NULL) {
 				if (mcspi_wait_for_reg_bit(chstat_reg,
@@ -781,7 +781,7 @@ omap2_mcspi_txrx_pio(struct spi_device *spi, struct spi_transfer *xfer)
 				if (c == 4 && tx == NULL &&
 				    (l & OMAP2_MCSPI_CHCONF_TURBO)) {
 					omap2_mcspi_set_enable(spi, 0);
-					*rx++ = __raw_readl(rx_reg);
+					*rx++ = readl_relaxed(rx_reg);
 					dev_vdbg(&spi->dev, "read-%d %08x\n",
 						    word_len, *(rx - 1));
 					if (mcspi_wait_for_reg_bit(chstat_reg,
@@ -795,7 +795,7 @@ omap2_mcspi_txrx_pio(struct spi_device *spi, struct spi_transfer *xfer)
 					omap2_mcspi_set_enable(spi, 0);
 				}
 
-				*rx++ = __raw_readl(rx_reg);
+				*rx++ = readl_relaxed(rx_reg);
 				dev_vdbg(&spi->dev, "read-%d %08x\n",
 						word_len, *(rx - 1));
 			}
@@ -1107,7 +1107,7 @@ static void omap2_mcspi_work(struct omap2_mcspi *mcspi, struct spi_message *m)
 
 			/* RX_ONLY mode needs dummy data in TX reg */
 			if (t->tx_buf == NULL)
-				__raw_writel(0, cs->base
+				writel_relaxed(0, cs->base
 						+ OMAP2_MCSPI_TX0);
 
 			if ((mcspi_dma->dma_rx && mcspi_dma->dma_tx) &&
@@ -1470,9 +1470,9 @@ static int omap2_mcspi_resume(struct device *dev)
 			 * change in account.
 			 */
 			cs->chconf0 |= OMAP2_MCSPI_CHCONF_FORCE;
-			__raw_writel(cs->chconf0, cs->base + OMAP2_MCSPI_CHCONF0);
+			writel_relaxed(cs->chconf0, cs->base + OMAP2_MCSPI_CHCONF0);
 			cs->chconf0 &= ~OMAP2_MCSPI_CHCONF_FORCE;
-			__raw_writel(cs->chconf0, cs->base + OMAP2_MCSPI_CHCONF0);
+			writel_relaxed(cs->chconf0, cs->base + OMAP2_MCSPI_CHCONF0);
 		}
 	}
 	pm_runtime_mark_last_busy(mcspi->dev);

drivers/spi/spi-orion.c

@@ -434,7 +434,7 @@ static int orion_spi_probe(struct platform_device *pdev)
 	spi = spi_master_get_devdata(master);
 	spi->master = master;
 
-	spi->clk = clk_get(&pdev->dev, NULL);
+	spi->clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(spi->clk)) {
 		status = PTR_ERR(spi->clk);
 		goto out;
@@ -465,7 +465,6 @@ static int orion_spi_probe(struct platform_device *pdev)
 
 out_rel_clk:
 	clk_disable_unprepare(spi->clk);
-	clk_put(spi->clk);
 out:
 	spi_master_put(master);
 	return status;
@@ -481,7 +480,6 @@ static int orion_spi_remove(struct platform_device *pdev)
 	spi = spi_master_get_devdata(master);
 
 	clk_disable_unprepare(spi->clk);
-	clk_put(spi->clk);
 
 	return 0;
 }

drivers/spi/spi-pxa2xx-pci.c

@@ -62,7 +62,7 @@ static void ce4100_spi_remove(struct pci_dev *dev)
 	platform_device_unregister(pdev);
 }
 
-static DEFINE_PCI_DEVICE_TABLE(ce4100_spi_devices) = {
+static const struct pci_device_id ce4100_spi_devices[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2e6a) },
 	{ },
 };

drivers/spi/spi-sh-hspi.c

@@ -197,7 +197,7 @@ static int hspi_transfer_one_message(struct spi_master *master,
 
 			hspi_write(hspi, SPTBR, tx);
 
-			/* wait recive */
+			/* wait receive */
 			ret = hspi_status_check_timeout(hspi, 0x4, 0x4);
 			if (ret < 0)
 				break;

drivers/spi/spi-sh-msiof.c

@@ -169,7 +169,7 @@ static void sh_msiof_spi_set_clk_regs(struct sh_msiof_spi_priv *p,
 
 static void sh_msiof_spi_set_pin_regs(struct sh_msiof_spi_priv *p,
 				      u32 cpol, u32 cpha,
-				      u32 tx_hi_z, u32 lsb_first)
+				      u32 tx_hi_z, u32 lsb_first, u32 cs_high)
 {
 	u32 tmp;
 	int edge;
@@ -182,8 +182,12 @@ static void sh_msiof_spi_set_pin_regs(struct sh_msiof_spi_priv *p,
 	 *    1    1         11     11    1    1
 	 */
 	sh_msiof_write(p, FCTR, 0);
-	sh_msiof_write(p, TMDR1, 0xe2000005 | (lsb_first << 24));
+
-	sh_msiof_write(p, RMDR1, 0x22000005 | (lsb_first << 24));
+	tmp = 0;
+	tmp |= !cs_high << 25;
+	tmp |= lsb_first << 24;
+	sh_msiof_write(p, TMDR1, 0xe0000005 | tmp);
+	sh_msiof_write(p, RMDR1, 0x20000005 | tmp);
 
 	tmp = 0xa0000000;
 	tmp |= cpol << 30; /* TSCKIZ */
@@ -417,11 +421,12 @@ static void sh_msiof_spi_chipselect(struct spi_device *spi, int is_on)
 		sh_msiof_spi_set_pin_regs(p, !!(spi->mode & SPI_CPOL),
 					  !!(spi->mode & SPI_CPHA),
 					  !!(spi->mode & SPI_3WIRE),
-					  !!(spi->mode & SPI_LSB_FIRST));
+					  !!(spi->mode & SPI_LSB_FIRST),
+					  !!(spi->mode & SPI_CS_HIGH));
 	}
 
 	/* use spi->controller data for CS (same strategy as spi_gpio) */
-	gpio_set_value((unsigned)spi->controller_data, value);
+	gpio_set_value((uintptr_t)spi->controller_data, value);
 
 	if (is_on == BITBANG_CS_INACTIVE) {
 		if (test_and_clear_bit(0, &p->flags)) {
@@ -635,8 +640,7 @@ static int sh_msiof_spi_probe(struct platform_device *pdev)
 	master = spi_alloc_master(&pdev->dev, sizeof(struct sh_msiof_spi_priv));
 	if (master == NULL) {
 		dev_err(&pdev->dev, "failed to allocate spi master\n");
-		ret = -ENOMEM;
+		return -ENOMEM;
-		goto err0;
 	}
 
 	p = spi_master_get_devdata(master);
@@ -655,32 +659,38 @@ static int sh_msiof_spi_probe(struct platform_device *pdev)
 
 	init_completion(&p->done);
 
-	p->clk = clk_get(&pdev->dev, NULL);
+	p->clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(p->clk)) {
 		dev_err(&pdev->dev, "cannot get clock\n");
 		ret = PTR_ERR(p->clk);
 		goto err1;
 	}
 
-	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	i = platform_get_irq(pdev, 0);
-	if (!r || i < 0) {
+	if (i < 0) {
-		dev_err(&pdev->dev, "cannot get platform resources\n");
+		dev_err(&pdev->dev, "cannot get platform IRQ\n");
 		ret = -ENOENT;
-		goto err2;
+		goto err1;
-	}
-	p->mapbase = ioremap_nocache(r->start, resource_size(r));
-	if (!p->mapbase) {
-		dev_err(&pdev->dev, "unable to ioremap\n");
-		ret = -ENXIO;
-		goto err2;
 	}
 
-	ret = request_irq(i, sh_msiof_spi_irq, 0,
+	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-			  dev_name(&pdev->dev), p);
+	p->mapbase = devm_ioremap_resource(&pdev->dev, r);
+	if (IS_ERR(p->mapbase)) {
+		ret = PTR_ERR(p->mapbase);
+		goto err1;
+	}
+
+	ret = devm_request_irq(&pdev->dev, i, sh_msiof_spi_irq, 0,
+			       dev_name(&pdev->dev), p);
 	if (ret) {
 		dev_err(&pdev->dev, "unable to request irq\n");
-		goto err3;
+		goto err1;
+	}
+
+	ret = clk_prepare(p->clk);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "unable to prepare clock\n");
+		goto err1;
 	}
 
 	p->pdev = pdev;
@@ -719,13 +729,9 @@ static int sh_msiof_spi_probe(struct platform_device *pdev)
 		return 0;
 
 	pm_runtime_disable(&pdev->dev);
- err3:
+	clk_unprepare(p->clk);
-	iounmap(p->mapbase);
- err2:
-	clk_put(p->clk);
  err1:
 	spi_master_put(master);
- err0:
 	return ret;
 }
 
@@ -737,9 +743,7 @@ static int sh_msiof_spi_remove(struct platform_device *pdev)
 	ret = spi_bitbang_stop(&p->bitbang);
 	if (!ret) {
 		pm_runtime_disable(&pdev->dev);
-		free_irq(platform_get_irq(pdev, 0), p);
+		clk_unprepare(p->clk);
-		iounmap(p->mapbase);
-		clk_put(p->clk);
 		spi_master_put(p->bitbang.master);
 	}
 	return ret;

drivers/spi/spi-topcliff-pch.c

@@ -217,7 +217,7 @@ struct pch_pd_dev_save {
 	struct pch_spi_board_data *board_dat;
 };
 
-static DEFINE_PCI_DEVICE_TABLE(pch_spi_pcidev_id) = {
+static const struct pci_device_id pch_spi_pcidev_id[] = {
 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_GE_SPI),    1, },
 	{ PCI_VDEVICE(ROHM, PCI_DEVICE_ID_ML7213_SPI), 2, },
 	{ PCI_VDEVICE(ROHM, PCI_DEVICE_ID_ML7223_SPI), 1, },

include/linux/platform_data/spi-nuc900.h

@@ -1,6 +1,4 @@
 /*
- * arch/arm/mach-w90x900/include/mach/nuc900_spi.h
- *
  * Copyright (c) 2009 Nuvoton technology corporation.
  *
  * Wan ZongShun <mcuos.com@gmail.com>
@@ -11,8 +9,8 @@
  *
  */
 
-#ifndef __ASM_ARCH_SPI_H
+#ifndef __SPI_NUC900_H
-#define __ASM_ARCH_SPI_H
+#define __SPI_NUC900_H
 
 extern void mfp_set_groupg(struct device *dev, const char *subname);
 
@@ -32,4 +30,4 @@ struct nuc900_spi_chip {
 	unsigned char bits_per_word;
 };
 
-#endif /* __ASM_ARCH_SPI_H */
+#endif /* __SPI_NUC900_H */