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authorLinus Torvalds <torvalds@linux-foundation.org>2013-09-03 10:08:25 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-09-03 10:08:25 -0700
commit5d3fed701d75ac6888f892ea2eb7c5dcc7831750 (patch)
tree897612dbf321bc740df8a1825cf5580d6ceec872
parent8243b7f5dc1dced123145566291015704f2b4ba7 (diff)
parent578739259875a93b1869d25cdf4a8bd963b7d0a7 (diff)
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Merge tag 'spi-v3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown: "Business as usual for SPI - some new drivers, lots of fixes and updates to existing drivers plus some new framework features. Notable changes are: - Support for dual and quad data lines, commonly used by flash chips to improve performance, from Wang Yuhang. - Factored out a common pattern for runtime PM implementation into the core saving a bunch of code. - A particularly nice set of updates to the ep93xx driver from H Hartley Sweeten, modernising it and reducing the code size a lot. - New drivers for Blackfin v3, EFM32, Freescale DSPI and TI QSPI" * tag 'spi-v3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (133 commits) spi/qspi: fix missing unlock on error in ti_qspi_start_transfer_one() spi: quad: fix the name of DT property spi: core: Fix spi_register_master error handling spi: efm32: Fix build error spi: altera: Use DIV_ROUND_UP to calculate hw->bytes_per_word spi: rspi: Add spi_master_get() call to prevent use after free spi: quad: Make DT properties optional spi: quad: Fix missing return spi: Use dev_get_drvdata at appropriate places spi: use dev_get_platdata() spi: nuc900: Fix mode_bits setting spi: simplify devm_request_mem_region/devm_ioremap spi: altera: Simplify altera_spi_txrx implementation for noirq case spi: spi-rspi: fix inconsistent spin_lock_irqsave spi/qspi: Add compatible string for am4372. spi/qspi: Fix device table entry spi/sirf: fix the misunderstanding about len of spi_transfer spi/qspi: Add dual/quad spi read support spi: sirf: fix error return code in spi_sirfsoc_probe() spi: bcm2835: Add spi_master_get() call to prevent use after free ...
-rw-r--r--Documentation/devicetree/bindings/spi/efm32-spi.txt34
-rw-r--r--Documentation/devicetree/bindings/spi/spi-bus.txt10
-rw-r--r--Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt42
-rw-r--r--Documentation/devicetree/bindings/spi/ti_qspi.txt22
-rw-r--r--Documentation/spi/spi-summary2
-rw-r--r--drivers/spi/Kconfig63
-rw-r--r--drivers/spi/Makefile4
-rw-r--r--drivers/spi/spi-altera.c48
-rw-r--r--drivers/spi/spi-ath79.c2
-rw-r--r--drivers/spi/spi-atmel.c36
-rw-r--r--drivers/spi/spi-au1550.c2
-rw-r--r--drivers/spi/spi-bcm2835.c10
-rw-r--r--drivers/spi/spi-bcm63xx.c37
-rw-r--r--drivers/spi/spi-bfin-sport.c2
-rw-r--r--drivers/spi/spi-bfin-v3.c965
-rw-r--r--drivers/spi/spi-bfin5xx.c2
-rw-r--r--drivers/spi/spi-bitbang.c260
-rw-r--r--drivers/spi/spi-clps711x.c6
-rw-r--r--drivers/spi/spi-coldfire-qspi.c27
-rw-r--r--drivers/spi/spi-davinci.c4
-rw-r--r--drivers/spi/spi-efm32.c516
-rw-r--r--drivers/spi/spi-ep93xx.c355
-rw-r--r--drivers/spi/spi-fsl-dspi.c557
-rw-r--r--drivers/spi/spi-fsl-espi.c4
-rw-r--r--drivers/spi/spi-fsl-lib.c2
-rw-r--r--drivers/spi/spi-fsl-spi.c13
-rw-r--r--drivers/spi/spi-gpio.c4
-rw-r--r--drivers/spi/spi-imx.c76
-rw-r--r--drivers/spi/spi-mpc512x-psc.c50
-rw-r--r--drivers/spi/spi-mpc52xx-psc.c2
-rw-r--r--drivers/spi/spi-mxs.c28
-rw-r--r--drivers/spi/spi-nuc900.c17
-rw-r--r--drivers/spi/spi-oc-tiny.c24
-rw-r--r--drivers/spi/spi-octeon.c49
-rw-r--r--drivers/spi/spi-omap-100k.c278
-rw-r--r--drivers/spi/spi-omap2-mcspi.c22
-rw-r--r--drivers/spi/spi-orion.c23
-rw-r--r--drivers/spi/spi-pl022.c28
-rw-r--r--drivers/spi/spi-pxa2xx.c21
-rw-r--r--drivers/spi/spi-rspi.c21
-rw-r--r--drivers/spi/spi-s3c24xx.c6
-rw-r--r--drivers/spi/spi-s3c64xx.c120
-rw-r--r--drivers/spi/spi-sh-hspi.c20
-rw-r--r--drivers/spi/spi-sh-msiof.c20
-rw-r--r--drivers/spi/spi-sh-sci.c2
-rw-r--r--drivers/spi/spi-sirf.c233
-rw-r--r--drivers/spi/spi-tegra114.c18
-rw-r--r--drivers/spi/spi-tegra20-sflash.c8
-rw-r--r--drivers/spi/spi-tegra20-slink.c8
-rw-r--r--drivers/spi/spi-ti-qspi.c574
-rw-r--r--drivers/spi/spi-ti-ssp.c2
-rw-r--r--drivers/spi/spi-tle62x0.c5
-rw-r--r--drivers/spi/spi-topcliff-pch.c2
-rw-r--r--drivers/spi/spi-txx9.c2
-rw-r--r--drivers/spi/spi-xilinx.c188
-rw-r--r--drivers/spi/spi.c137
-rw-r--r--include/linux/platform_data/efm32-spi.h14
-rw-r--r--include/linux/spi/spi.h36
-rw-r--r--include/linux/spi/spi_bitbang.h5
59 files changed, 3721 insertions, 1347 deletions
diff --git a/Documentation/devicetree/bindings/spi/efm32-spi.txt b/Documentation/devicetree/bindings/spi/efm32-spi.txt
new file mode 100644
index 000000000000..a590ca51be75
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/efm32-spi.txt
@@ -0,0 +1,34 @@
+* Energy Micro EFM32 SPI
+
+Required properties:
+- #address-cells: see spi-bus.txt
+- #size-cells: see spi-bus.txt
+- compatible: should be "efm32,spi"
+- reg: Offset and length of the register set for the controller
+- interrupts: pair specifying rx and tx irq
+- clocks: phandle to the spi clock
+- cs-gpios: see spi-bus.txt
+- location: Value to write to the ROUTE register's LOCATION bitfield to configure the pinmux for the device, see datasheet for values.
+
+Example:
+
+spi1: spi@0x4000c400 { /* USART1 */
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "efm32,spi";
+ reg = <0x4000c400 0x400>;
+ interrupts = <15 16>;
+ clocks = <&cmu 20>;
+ cs-gpios = <&gpio 51 1>; // D3
+ location = <1>;
+ status = "ok";
+
+ ks8851@0 {
+ compatible = "ks8851";
+ spi-max-frequency = <6000000>;
+ reg = <0>;
+ interrupt-parent = <&boardfpga>;
+ interrupts = <4>;
+ status = "ok";
+ };
+};
diff --git a/Documentation/devicetree/bindings/spi/spi-bus.txt b/Documentation/devicetree/bindings/spi/spi-bus.txt
index 296015e3c632..800dafe5b01b 100644
--- a/Documentation/devicetree/bindings/spi/spi-bus.txt
+++ b/Documentation/devicetree/bindings/spi/spi-bus.txt
@@ -55,6 +55,16 @@ contain the following properties.
chip select active high
- spi-3wire - (optional) Empty property indicating device requires
3-wire mode.
+- spi-tx-bus-width - (optional) The bus width(number of data wires) that
+ used for MOSI. Defaults to 1 if not present.
+- spi-rx-bus-width - (optional) The bus width(number of data wires) that
+ used for MISO. Defaults to 1 if not present.
+
+Some SPI controllers and devices support Dual and Quad SPI transfer mode.
+It allows data in SPI system transfered in 2 wires(DUAL) or 4 wires(QUAD).
+Now the value that spi-tx-bus-width and spi-rx-bus-width can receive is
+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
diff --git a/Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt b/Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt
new file mode 100644
index 000000000000..a1fb3035a42b
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt
@@ -0,0 +1,42 @@
+ARM Freescale DSPI controller
+
+Required properties:
+- compatible : "fsl,vf610-dspi"
+- reg : Offset and length of the register set for the device
+- interrupts : Should contain SPI controller interrupt
+- clocks: from common clock binding: handle to dspi clock.
+- clock-names: from common clock binding: Shall be "dspi".
+- pinctrl-0: pin control group to be used for this controller.
+- pinctrl-names: must contain a "default" entry.
+- spi-num-chipselects : the number of the chipselect signals.
+- bus-num : the slave chip chipselect signal number.
+Example:
+
+dspi0@4002c000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "fsl,vf610-dspi";
+ reg = <0x4002c000 0x1000>;
+ interrupts = <0 67 0x04>;
+ clocks = <&clks VF610_CLK_DSPI0>;
+ clock-names = "dspi";
+ spi-num-chipselects = <5>;
+ bus-num = <0>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_dspi0_1>;
+ status = "okay";
+
+ sflash: at26df081a@0 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "atmel,at26df081a";
+ spi-max-frequency = <16000000>;
+ spi-cpol;
+ spi-cpha;
+ reg = <0>;
+ linux,modalias = "m25p80";
+ modal = "at26df081a";
+ };
+};
+
+
diff --git a/Documentation/devicetree/bindings/spi/ti_qspi.txt b/Documentation/devicetree/bindings/spi/ti_qspi.txt
new file mode 100644
index 000000000000..1f9641ade0b5
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/ti_qspi.txt
@@ -0,0 +1,22 @@
+TI QSPI controller.
+
+Required properties:
+- compatible : should be "ti,dra7xxx-qspi" or "ti,am4372-qspi".
+- reg: Should contain QSPI registers location and length.
+- #address-cells, #size-cells : Must be present if the device has sub-nodes
+- ti,hwmods: Name of the hwmod associated to the QSPI
+
+Recommended properties:
+- spi-max-frequency: Definition as per
+ Documentation/devicetree/bindings/spi/spi-bus.txt
+
+Example:
+
+qspi: qspi@4b300000 {
+ compatible = "ti,dra7xxx-qspi";
+ reg = <0x4b300000 0x100>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ spi-max-frequency = <25000000>;
+ ti,hwmods = "qspi";
+};
diff --git a/Documentation/spi/spi-summary b/Documentation/spi/spi-summary
index 2331eb214146..f21edb983413 100644
--- a/Documentation/spi/spi-summary
+++ b/Documentation/spi/spi-summary
@@ -215,7 +215,7 @@ So for example arch/.../mach-*/board-*.c files might have code like:
/* if your mach-* infrastructure doesn't support kernels that can
* run on multiple boards, pdata wouldn't benefit from "__init".
*/
- static struct mysoc_spi_data __initdata pdata = { ... };
+ static struct mysoc_spi_data pdata __initdata = { ... };
static __init board_init(void)
{
diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index 89cbbabaff44..0170d4c4a8a3 100644
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -70,14 +70,14 @@ config SPI_ATH79
config SPI_ATMEL
tristate "Atmel SPI Controller"
- depends on (ARCH_AT91 || AVR32)
+ depends on (ARCH_AT91 || AVR32 || COMPILE_TEST)
help
This selects a driver for the Atmel SPI Controller, present on
many AT32 (AVR32) and AT91 (ARM) chips.
config SPI_BCM2835
tristate "BCM2835 SPI controller"
- depends on ARCH_BCM2835
+ depends on ARCH_BCM2835 || COMPILE_TEST
help
This selects a driver for the Broadcom BCM2835 SPI master.
@@ -88,10 +88,17 @@ config SPI_BCM2835
config SPI_BFIN5XX
tristate "SPI controller driver for ADI Blackfin5xx"
- depends on BLACKFIN
+ depends on BLACKFIN && !BF60x
help
This is the SPI controller master driver for Blackfin 5xx processor.
+config SPI_BFIN_V3
+ tristate "SPI controller v3 for Blackfin"
+ depends on BF60x
+ help
+ This is the SPI controller v3 master driver
+ found on Blackfin 60x processor.
+
config SPI_BFIN_SPORT
tristate "SPI bus via Blackfin SPORT"
depends on BLACKFIN
@@ -151,15 +158,22 @@ config SPI_COLDFIRE_QSPI
config SPI_DAVINCI
tristate "Texas Instruments DaVinci/DA8x/OMAP-L/AM1x SoC SPI controller"
- depends on ARCH_DAVINCI
+ depends on ARCH_DAVINCI || ARCH_KEYSTONE
select SPI_BITBANG
select TI_EDMA
help
SPI master controller for DaVinci/DA8x/OMAP-L/AM1x SPI modules.
+config SPI_EFM32
+ tristate "EFM32 SPI controller"
+ depends on OF && ARM && (ARCH_EFM32 || COMPILE_TEST)
+ select SPI_BITBANG
+ help
+ Driver for the spi controller found on Energy Micro's EFM32 SoCs.
+
config SPI_EP93XX
tristate "Cirrus Logic EP93xx SPI controller"
- depends on ARCH_EP93XX
+ depends on ARCH_EP93XX || COMPILE_TEST
help
This enables using the Cirrus EP93xx SPI controller in master
mode.
@@ -191,7 +205,7 @@ config SPI_GPIO
config SPI_IMX
tristate "Freescale i.MX SPI controllers"
- depends on ARCH_MXC
+ depends on ARCH_MXC || COMPILE_TEST
select SPI_BITBANG
default m if IMX_HAVE_PLATFORM_SPI_IMX
help
@@ -248,6 +262,13 @@ config SPI_FSL_SPI
This also enables using the Aeroflex Gaisler GRLIB SPI controller in
master mode.
+config SPI_FSL_DSPI
+ tristate "Freescale DSPI controller"
+ select SPI_BITBANG
+ help
+ This enables support for the Freescale DSPI controller in master
+ mode. VF610 platform uses the controller.
+
config SPI_FSL_ESPI
bool "Freescale eSPI controller"
depends on FSL_SOC
@@ -280,20 +301,28 @@ config SPI_OMAP_UWIRE
config SPI_OMAP24XX
tristate "McSPI driver for OMAP"
- depends on ARCH_OMAP2PLUS
+ depends on ARCH_OMAP2PLUS || COMPILE_TEST
help
SPI master controller for OMAP24XX and later Multichannel SPI
(McSPI) modules.
+config SPI_TI_QSPI
+ tristate "DRA7xxx QSPI controller support"
+ depends on ARCH_OMAP2PLUS || COMPILE_TEST
+ help
+ QSPI master controller for DRA7xxx used for flash devices.
+ This device supports single, dual and quad read support, while
+ it only supports single write mode.
+
config SPI_OMAP_100K
tristate "OMAP SPI 100K"
- depends on ARCH_OMAP850 || ARCH_OMAP730
+ depends on ARCH_OMAP850 || ARCH_OMAP730 || COMPILE_TEST
help
OMAP SPI 100K master controller for omap7xx boards.
config SPI_ORION
tristate "Orion SPI master"
- depends on PLAT_ORION
+ depends on PLAT_ORION || COMPILE_TEST
help
This enables using the SPI master controller on the Orion chips.
@@ -341,7 +370,7 @@ config SPI_PXA2XX_PCI
config SPI_RSPI
tristate "Renesas RSPI controller"
- depends on SUPERH
+ depends on SUPERH && SH_DMAE_BASE
help
SPI driver for Renesas RSPI blocks.
@@ -385,7 +414,7 @@ config SPI_SH_MSIOF
config SPI_SH
tristate "SuperH SPI controller"
- depends on SUPERH
+ depends on SUPERH || COMPILE_TEST
help
SPI driver for SuperH SPI blocks.
@@ -398,13 +427,13 @@ config SPI_SH_SCI
config SPI_SH_HSPI
tristate "SuperH HSPI controller"
- depends on ARCH_SHMOBILE
+ depends on ARCH_SHMOBILE || COMPILE_TEST
help
SPI driver for SuperH HSPI blocks.
config SPI_SIRF
tristate "CSR SiRFprimaII SPI controller"
- depends on ARCH_SIRF
+ depends on SIRF_DMA
select SPI_BITBANG
help
SPI driver for CSR SiRFprimaII SoCs
@@ -418,7 +447,7 @@ config SPI_MXS
config SPI_TEGRA114
tristate "NVIDIA Tegra114 SPI Controller"
- depends on ARCH_TEGRA && TEGRA20_APB_DMA
+ depends on (ARCH_TEGRA && TEGRA20_APB_DMA) || COMPILE_TEST
help
SPI driver for NVIDIA Tegra114 SPI Controller interface. This controller
is different than the older SoCs SPI controller and also register interface
@@ -426,7 +455,7 @@ config SPI_TEGRA114
config SPI_TEGRA20_SFLASH
tristate "Nvidia Tegra20 Serial flash Controller"
- depends on ARCH_TEGRA
+ depends on ARCH_TEGRA || COMPILE_TEST
help
SPI driver for Nvidia Tegra20 Serial flash Controller interface.
The main usecase of this controller is to use spi flash as boot
@@ -434,7 +463,7 @@ config SPI_TEGRA20_SFLASH
config SPI_TEGRA20_SLINK
tristate "Nvidia Tegra20/Tegra30 SLINK Controller"
- depends on ARCH_TEGRA && TEGRA20_APB_DMA
+ depends on (ARCH_TEGRA && TEGRA20_APB_DMA) || COMPILE_TEST
help
SPI driver for Nvidia Tegra20/Tegra30 SLINK Controller interface.
@@ -457,7 +486,7 @@ config SPI_TOPCLIFF_PCH
config SPI_TXX9
tristate "Toshiba TXx9 SPI controller"
- depends on GPIOLIB && CPU_TX49XX
+ depends on GPIOLIB && (CPU_TX49XX || COMPILE_TEST)
help
SPI driver for Toshiba TXx9 MIPS SoCs
diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile
index 33f9c09561e7..ab8d8644af0e 100644
--- a/drivers/spi/Makefile
+++ b/drivers/spi/Makefile
@@ -17,6 +17,7 @@ obj-$(CONFIG_SPI_AU1550) += spi-au1550.o
obj-$(CONFIG_SPI_BCM2835) += spi-bcm2835.o
obj-$(CONFIG_SPI_BCM63XX) += spi-bcm63xx.o
obj-$(CONFIG_SPI_BFIN5XX) += spi-bfin5xx.o
+obj-$(CONFIG_SPI_BFIN_V3) += spi-bfin-v3.o
obj-$(CONFIG_SPI_BFIN_SPORT) += spi-bfin-sport.o
obj-$(CONFIG_SPI_BITBANG) += spi-bitbang.o
obj-$(CONFIG_SPI_BUTTERFLY) += spi-butterfly.o
@@ -27,9 +28,11 @@ obj-$(CONFIG_SPI_DESIGNWARE) += spi-dw.o
obj-$(CONFIG_SPI_DW_MMIO) += spi-dw-mmio.o
obj-$(CONFIG_SPI_DW_PCI) += spi-dw-midpci.o
spi-dw-midpci-objs := spi-dw-pci.o spi-dw-mid.o
+obj-$(CONFIG_SPI_EFM32) += spi-efm32.o
obj-$(CONFIG_SPI_EP93XX) += spi-ep93xx.o
obj-$(CONFIG_SPI_FALCON) += spi-falcon.o
obj-$(CONFIG_SPI_FSL_CPM) += spi-fsl-cpm.o
+obj-$(CONFIG_SPI_FSL_DSPI) += spi-fsl-dspi.o
obj-$(CONFIG_SPI_FSL_LIB) += spi-fsl-lib.o
obj-$(CONFIG_SPI_FSL_ESPI) += spi-fsl-espi.o
obj-$(CONFIG_SPI_FSL_SPI) += spi-fsl-spi.o
@@ -46,6 +49,7 @@ obj-$(CONFIG_SPI_OCTEON) += spi-octeon.o
obj-$(CONFIG_SPI_OMAP_UWIRE) += spi-omap-uwire.o
obj-$(CONFIG_SPI_OMAP_100K) += spi-omap-100k.o
obj-$(CONFIG_SPI_OMAP24XX) += spi-omap2-mcspi.o
+obj-$(CONFIG_SPI_TI_QSPI) += spi-ti-qspi.o
obj-$(CONFIG_SPI_ORION) += spi-orion.o
obj-$(CONFIG_SPI_PL022) += spi-pl022.o
obj-$(CONFIG_SPI_PPC4xx) += spi-ppc4xx.o
diff --git a/drivers/spi/spi-altera.c b/drivers/spi/spi-altera.c
index 81b9adb6e766..f38855f76536 100644
--- a/drivers/spi/spi-altera.c
+++ b/drivers/spi/spi-altera.c
@@ -103,16 +103,6 @@ static void altera_spi_chipsel(struct spi_device *spi, int value)
}
}
-static int altera_spi_setupxfer(struct spi_device *spi, struct spi_transfer *t)
-{
- return 0;
-}
-
-static int altera_spi_setup(struct spi_device *spi)
-{
- return 0;
-}
-
static inline unsigned int hw_txbyte(struct altera_spi *hw, int count)
{
if (hw->tx) {
@@ -134,7 +124,7 @@ static int altera_spi_txrx(struct spi_device *spi, struct spi_transfer *t)
hw->tx = t->tx_buf;
hw->rx = t->rx_buf;
hw->count = 0;
- hw->bytes_per_word = t->bits_per_word / 8;
+ hw->bytes_per_word = DIV_ROUND_UP(t->bits_per_word, 8);
hw->len = t->len / hw->bytes_per_word;
if (hw->irq >= 0) {
@@ -150,12 +140,12 @@ static int altera_spi_txrx(struct spi_device *spi, struct spi_transfer *t)
hw->imr &= ~ALTERA_SPI_CONTROL_IRRDY_MSK;
writel(hw->imr, hw->base + ALTERA_SPI_CONTROL);
} else {
- /* send the first byte */
- writel(hw_txbyte(hw, 0), hw->base + ALTERA_SPI_TXDATA);
-
- while (1) {
+ while (hw->count < hw->len) {
unsigned int rxd;
+ writel(hw_txbyte(hw, hw->count),
+ hw->base + ALTERA_SPI_TXDATA);
+
while (!(readl(hw->base + ALTERA_SPI_STATUS) &
ALTERA_SPI_STATUS_RRDY_MSK))
cpu_relax();
@@ -174,14 +164,7 @@ static int altera_spi_txrx(struct spi_device *spi, struct spi_transfer *t)
}
hw->count++;
-
- if (hw->count < hw->len)
- writel(hw_txbyte(hw, hw->count),
- hw->base + ALTERA_SPI_TXDATA);
- else
- break;
}
-
}
return hw->count * hw->bytes_per_word;
@@ -217,7 +200,7 @@ static irqreturn_t altera_spi_irq(int irq, void *dev)
static int altera_spi_probe(struct platform_device *pdev)
{
- struct altera_spi_platform_data *platp = pdev->dev.platform_data;
+ struct altera_spi_platform_data *platp = dev_get_platdata(&pdev->dev);
struct altera_spi *hw;
struct spi_master *master;
struct resource *res;
@@ -231,7 +214,6 @@ static int altera_spi_probe(struct platform_device *pdev)
master->bus_num = pdev->id;
master->num_chipselect = 16;
master->mode_bits = SPI_CS_HIGH;
- master->setup = altera_spi_setup;
hw = spi_master_get_devdata(master);
platform_set_drvdata(pdev, hw);
@@ -240,21 +222,16 @@ static int altera_spi_probe(struct platform_device *pdev)
hw->bitbang.master = spi_master_get(master);
if (!hw->bitbang.master)
return err;
- hw->bitbang.setup_transfer = altera_spi_setupxfer;
hw->bitbang.chipselect = altera_spi_chipsel;
hw->bitbang.txrx_bufs = altera_spi_txrx;
/* find and map our resources */
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res)
- goto exit_busy;
- if (!devm_request_mem_region(&pdev->dev, res->start, resource_size(res),
- pdev->name))
- goto exit_busy;
- hw->base = devm_ioremap_nocache(&pdev->dev, res->start,
- resource_size(res));
- if (!hw->base)
- goto exit_busy;
+ hw->base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(hw->base)) {
+ err = PTR_ERR(hw->base);
+ goto exit;
+ }
/* program defaults into the registers */
hw->imr = 0; /* disable spi interrupts */
writel(hw->imr, hw->base + ALTERA_SPI_CONTROL);
@@ -281,9 +258,6 @@ static int altera_spi_probe(struct platform_device *pdev)
dev_info(&pdev->dev, "base %p, irq %d\n", hw->base, hw->irq);
return 0;
-
-exit_busy:
- err = -EBUSY;
exit:
spi_master_put(master);
return err;
diff --git a/drivers/spi/spi-ath79.c b/drivers/spi/spi-ath79.c
index 0e06407a4670..37bad952ab38 100644
--- a/drivers/spi/spi-ath79.c
+++ b/drivers/spi/spi-ath79.c
@@ -221,7 +221,7 @@ static int ath79_spi_probe(struct platform_device *pdev)
sp = spi_master_get_devdata(master);
platform_set_drvdata(pdev, sp);
- pdata = pdev->dev.platform_data;
+ pdata = dev_get_platdata(&pdev->dev);
master->bits_per_word_mask = SPI_BPW_RANGE_MASK(1, 32);
master->setup = ath79_spi_setup;
diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c
index ea1ec009f44d..fd7cc566095a 100644
--- a/drivers/spi/spi-atmel.c
+++ b/drivers/spi/spi-atmel.c
@@ -360,12 +360,12 @@ static void cs_deactivate(struct atmel_spi *as, struct spi_device *spi)
gpio_set_value(asd->npcs_pin, !active);
}
-static void atmel_spi_lock(struct atmel_spi *as)
+static void atmel_spi_lock(struct atmel_spi *as) __acquires(&as->lock)
{
spin_lock_irqsave(&as->lock, as->flags);
}
-static void atmel_spi_unlock(struct atmel_spi *as)
+static void atmel_spi_unlock(struct atmel_spi *as) __releases(&as->lock)
{
spin_unlock_irqrestore(&as->lock, as->flags);
}
@@ -629,9 +629,9 @@ static int atmel_spi_next_xfer_dma_submit(struct spi_master *master,
goto err_dma;
dev_dbg(master->dev.parent,
- " start dma xfer %p: len %u tx %p/%08x rx %p/%08x\n",
- xfer, xfer->len, xfer->tx_buf, xfer->tx_dma,
- xfer->rx_buf, xfer->rx_dma);
+ " start dma xfer %p: len %u tx %p/%08llx rx %p/%08llx\n",
+ xfer, xfer->len, xfer->tx_buf, (unsigned long long)xfer->tx_dma,
+ xfer->rx_buf, (unsigned long long)xfer->rx_dma);
/* Enable relevant interrupts */
spi_writel(as, IER, SPI_BIT(OVRES));
@@ -732,9 +732,10 @@ static void atmel_spi_pdc_next_xfer(struct spi_master *master,
spi_writel(as, TCR, len);
dev_dbg(&msg->spi->dev,
- " start xfer %p: len %u tx %p/%08x rx %p/%08x\n",