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spi: Fixes for v4.20

Browse source 
A few driver specific fixes here, nothing big or that stands out for
 anyone other than the driver users.
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Merge tag 'spi-fix-v4.20-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi fixes from Mark Brown:
 "A few driver specific fixes here, nothing big or that stands out for
  anyone other than the driver users.

  The omap2-mcspi fix is for issues that started showing up with a
  change in defconfig in this release to make cpuidle get turned on by
  default"

* tag 'spi-fix-v4.20-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: omap2-mcspi: Add missing suspend and resume calls
  spi: mediatek: use correct mata->xfer_len when in fifo transfer
  spi: uniphier: fix incorrect property items
This commit is contained in:
Linus Torvalds 2018-11-28 08:33:55 -08:00
commit 5b26f7180c
3 changed files with 35 additions and 20 deletions
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14
Documentation/devicetree/bindings/spi/spi-uniphier.txt
View file

@ -5,18 +5,20 @@ UniPhier SoCs have SCSSI which supports SPI single channel.
Required properties:
- compatible: should be "socionext,uniphier-scssi"
- reg: address and length of the spi master registers
- #address-cells: must be <1>, see spi-bus.txt
- #size-cells: must be <0>, see spi-bus.txt
- clocks: A phandle to the clock for the device.
- resets: A phandle to the reset control for the device.
- interrupts: a single interrupt specifier
- pinctrl-names: should be "default"
- pinctrl-0: pin control state for the default mode
- clocks: a phandle to the clock for the device
- resets: a phandle to the reset control for the device
Example:
spi0: spi@54006000 {
compatible = "socionext,uniphier-scssi";
reg = <0x54006000 0x100>;
#address-cells = <1>;
#size-cells = <0>;
interrupts = <0 39 4>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_spi0>;
clocks = <&peri_clk 11>;
resets = <&peri_rst 11>;
};

4
drivers/spi/spi-mt65xx.c
View file

@ -522,11 +522,11 @@ static irqreturn_t mtk_spi_interrupt(int irq, void *dev_id)
mdata->xfer_len = min(MTK_SPI_MAX_FIFO_SIZE, len);
mtk_spi_setup_packet(master);
cnt = len / 4;
cnt = mdata->xfer_len / 4;
iowrite32_rep(mdata->base + SPI_TX_DATA_REG,
trans->tx_buf + mdata->num_xfered, cnt);
remainder = len % 4;
remainder = mdata->xfer_len % 4;
if (remainder > 0) {
reg_val = 0;
memcpy(&reg_val,

37
drivers/spi/spi-omap2-mcspi.c
View file

@ -1540,13 +1540,26 @@ static int omap2_mcspi_remove(struct platform_device *pdev)
/* work with hotplug and coldplug */
MODULE_ALIAS("platform:omap2_mcspi");
#ifdef CONFIG_SUSPEND
static int omap2_mcspi_suspend_noirq(struct device *dev)
static int __maybe_unused omap2_mcspi_suspend(struct device *dev)
{
return pinctrl_pm_select_sleep_state(dev);
struct spi_master *master = dev_get_drvdata(dev);
struct omap2_mcspi *mcspi = spi_master_get_devdata(master);
int error;
error = pinctrl_pm_select_sleep_state(dev);
if (error)
dev_warn(mcspi->dev, "%s: failed to set pins: %i\n",
__func__, error);
error = spi_master_suspend(master);
if (error)
dev_warn(mcspi->dev, "%s: master suspend failed: %i\n",
__func__, error);
return pm_runtime_force_suspend(dev);
}
static int omap2_mcspi_resume_noirq(struct device *dev)
static int __maybe_unused omap2_mcspi_resume(struct device *dev)
{
struct spi_master *master = dev_get_drvdata(dev);
struct omap2_mcspi *mcspi = spi_master_get_devdata(master);
@ -1557,17 +1570,17 @@ static int omap2_mcspi_resume_noirq(struct device *dev)
dev_warn(mcspi->dev, "%s: failed to set pins: %i\n",
__func__, error);
return 0;
error = spi_master_resume(master);
if (error)
dev_warn(mcspi->dev, "%s: master resume failed: %i\n",
__func__, error);
return pm_runtime_force_resume(dev);
}
#else
#define omap2_mcspi_suspend_noirq NULL
#define omap2_mcspi_resume_noirq NULL
#endif
static const struct dev_pm_ops omap2_mcspi_pm_ops = {
.suspend_noirq = omap2_mcspi_suspend_noirq,
.resume_noirq = omap2_mcspi_resume_noirq,
SET_SYSTEM_SLEEP_PM_OPS(omap2_mcspi_suspend,
omap2_mcspi_resume)
.runtime_resume = omap_mcspi_runtime_resume,
};