Merge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck...

[linux-drm-fsl-dcu.git] / drivers / acpi / acpi_lpss.c

diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c
index 24288571533176d82cfed24077a1ef8d6d02139f..6745fe137b9ea541ae729429035eaeca8fc8fc07 100644 (file)
--- a/drivers/acpi/acpi_lpss.c
+++ b/drivers/acpi/acpi_lpss.c
@@ -30,6 +30,7 @@ ACPI_MODULE_NAME("acpi_lpss");
 /* Offsets relative to LPSS_PRIVATE_OFFSET */
 #define LPSS_GENERAL                   0x08
 #define LPSS_GENERAL_LTR_MODE_SW       BIT(2)
+#define LPSS_GENERAL_UART_RTS_OVRD     BIT(3)
 #define LPSS_SW_LTR                    0x10
 #define LPSS_AUTO_LTR                  0x14
 #define LPSS_TX_INT                    0x20
@@ -68,11 +69,16 @@ struct lpss_private_data {
 
 static void lpss_uart_setup(struct lpss_private_data *pdata)
 {
-       unsigned int tx_int_offset = pdata->dev_desc->prv_offset + LPSS_TX_INT;
+       unsigned int offset;
        u32 reg;
 
-       reg = readl(pdata->mmio_base + tx_int_offset);
-       writel(reg | LPSS_TX_INT_MASK, pdata->mmio_base + tx_int_offset);
+       offset = pdata->dev_desc->prv_offset + LPSS_TX_INT;
+       reg = readl(pdata->mmio_base + offset);
+       writel(reg | LPSS_TX_INT_MASK, pdata->mmio_base + offset);
+
+       offset = pdata->dev_desc->prv_offset + LPSS_GENERAL;
+       reg = readl(pdata->mmio_base + offset);
+       writel(reg | LPSS_GENERAL_UART_RTS_OVRD, pdata->mmio_base + offset);
 }
 
 static struct lpss_device_desc lpt_dev_desc = {