Merge tag 'spi-v4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi updates from Mark Brown:
 "This release is mainly a collection of driver specific updates,
  including a few nice cleanups to make drivers use more core features.

   - automatically use the parent device to allocate DMA buffers if
     there wasn't an explicitly configured device.

   - fixes for leaks on allocation.

   - a small piece of the start of SPI slave support, a feature that's
     been on the cards for over a decade!"

* tag 'spi-v4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (55 commits)
  spi: spi-ti-qspi: Fix error handling
  spi: spi-ti-qspi: Fix error handling
  spi: lantiq-ssc: activate under COMPILE_TEST
  spi: armada-3700: Remove spi_master_put in a3700_spi_remove()
  spi: ti-qspi: revise ti_qspi_probe() failure flow
  spi: spi-ep93xx: simplify GPIO chip selects
  spi: rspi: Replaces "n" by "len" in qspi_transfer_*()
  spi: rspi: Fixes bogus received byte in qspi_transfer_in()
  spi: bcm-qspi: Remove unnecessary platform_set_drvdata()
  spi: bcm-qspi: Fix bcm_qspi_bspi_read() performance
  spi: lantiq-ssc: add support for Lantiq SSC SPI controller
  spi: s3c64xx: fix inconsistency between binding and driver
  spi: armada-3700: Remove .owner field for driver
  spi: bcm-qspi: Added mspi read fallback in bcm_qspi_flash_read()
  spi: fix device-node leaks
  spi: mediatek: Only do dma for 4-byte aligned buffers
  spi: When no dma_chan map buffers with spi_master's parent
  spi: pca2xx-pci: Allow MSI
  spi: pxa2xx: Prepare for edge-triggered interrupts
  spi: pxa2xx: Add support for Intel Gemini Lake
  ...

1 files changed, 22 insertions, 14 deletions

diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c
index d6239fa718be..47b65d7c4072 100644
--- a/drivers/spi/spi-pxa2xx.c
+++ b/drivers/spi/spi-pxa2xx.c
@@ -732,6 +732,20 @@ static irqreturn_t interrupt_transfer(struct driver_data *drv_data)
 	return IRQ_HANDLED;
 }
 
+static void handle_bad_msg(struct driver_data *drv_data)
+{
+	pxa2xx_spi_write(drv_data, SSCR0,
+			 pxa2xx_spi_read(drv_data, SSCR0) & ~SSCR0_SSE);
+	pxa2xx_spi_write(drv_data, SSCR1,
+			 pxa2xx_spi_read(drv_data, SSCR1) & ~drv_data->int_cr1);
+	if (!pxa25x_ssp_comp(drv_data))
+		pxa2xx_spi_write(drv_data, SSTO, 0);
+	write_SSSR_CS(drv_data, drv_data->clear_sr);
+
+	dev_err(&drv_data->pdev->dev,
+		"bad message state in interrupt handler\n");
+}
+
 static irqreturn_t ssp_int(int irq, void *dev_id)
 {
 	struct driver_data *drv_data = dev_id;
@@ -771,21 +785,11 @@ static irqreturn_t ssp_int(int irq, void *dev_id)
 	if (!(status & mask))
 		return IRQ_NONE;
 
-	if (!drv_data->master->cur_msg) {
-
-		pxa2xx_spi_write(drv_data, SSCR0,
-				 pxa2xx_spi_read(drv_data, SSCR0)
-				 & ~SSCR0_SSE);
-		pxa2xx_spi_write(drv_data, SSCR1,
-				 pxa2xx_spi_read(drv_data, SSCR1)
-				 & ~drv_data->int_cr1);
-		if (!pxa25x_ssp_comp(drv_data))
-			pxa2xx_spi_write(drv_data, SSTO, 0);
-		write_SSSR_CS(drv_data, drv_data->clear_sr);
-
-		dev_err(&drv_data->pdev->dev,
-			"bad message state in interrupt handler\n");
+	pxa2xx_spi_write(drv_data, SSCR1, sccr1_reg & ~drv_data->int_cr1);
+	pxa2xx_spi_write(drv_data, SSCR1, sccr1_reg);
 
+	if (!drv_data->master->cur_msg) {
+		handle_bad_msg(drv_data);
 		/* Never fail */
 		return IRQ_HANDLED;
 	}
@@ -1458,6 +1462,10 @@ static const struct pci_device_id pxa2xx_spi_pci_compound_match[] = {
 	{ PCI_VDEVICE(INTEL, 0x1ac2), LPSS_BXT_SSP },
 	{ PCI_VDEVICE(INTEL, 0x1ac4), LPSS_BXT_SSP },
 	{ PCI_VDEVICE(INTEL, 0x1ac6), LPSS_BXT_SSP },
+	/* GLK */
+	{ PCI_VDEVICE(INTEL, 0x31c2), LPSS_BXT_SSP },
+	{ PCI_VDEVICE(INTEL, 0x31c4), LPSS_BXT_SSP },
+	{ PCI_VDEVICE(INTEL, 0x31c6), LPSS_BXT_SSP },
 	/* APL */
 	{ PCI_VDEVICE(INTEL, 0x5ac2), LPSS_BXT_SSP },
 	{ PCI_VDEVICE(INTEL, 0x5ac4), LPSS_BXT_SSP },