Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

Pull more input updates from Dmitry Torokhov:

 - fixups for Synaptics RMI4 driver

 - a quirk for Goodinx touchscreen on Teclast tablet

 - a new keycode definition for activating privacy screen feature found
   on a few "enterprise" laptops

 - updates to snvs_pwrkey driver

 - polling uinput device for writing (which is always allowed) now works

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: synaptics-rmi4 - don't increment rmiaddr for SMBus transfers
  Input: synaptics-rmi4 - re-enable IRQs in f34v7_do_reflash
  Input: goodix - add upside-down quirk for Teclast X89 tablet
  Input: add privacy screen toggle keycode
  Input: uinput - fix returning EPOLLOUT from uinput_poll
  Input: snvs_pwrkey - remove gratuitous NULL initializers
  Input: snvs_pwrkey - send key events for i.MX6 S, DL and Q

2 files changed, 36 insertions, 14 deletions

diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
index 61f4eb63eec1..4706ff09f0e8 100644
--- a/drivers/input/keyboard/Kconfig
+++ b/drivers/input/keyboard/Kconfig
@@ -450,7 +450,7 @@ config KEYBOARD_SNVS_PWRKEY
 	depends on OF
 	help
 	  This is the snvs powerkey driver for the Freescale i.MX application
-	  processors that are newer than i.MX6 SX.
+	  processors.
 
 	  To compile this driver as a module, choose M here; the
 	  module will be called snvs_pwrkey.
diff --git a/drivers/input/keyboard/snvs_pwrkey.c b/drivers/input/keyboard/snvs_pwrkey.c
index e76b7a400a1c..2f5e3ab5ed63 100644
--- a/drivers/input/keyboard/snvs_pwrkey.c
+++ b/drivers/input/keyboard/snvs_pwrkey.c
@@ -19,15 +19,16 @@
 #include <linux/mfd/syscon.h>
 #include <linux/regmap.h>
 
-#define SNVS_LPSR_REG	0x4C	/* LP Status Register */
-#define SNVS_LPCR_REG	0x38	/* LP Control Register */
-#define SNVS_HPSR_REG	0x14
-#define SNVS_HPSR_BTN	BIT(6)
-#define SNVS_LPSR_SPO	BIT(18)
-#define SNVS_LPCR_DEP_EN BIT(5)
+#define SNVS_HPVIDR1_REG	0xF8
+#define SNVS_LPSR_REG		0x4C	/* LP Status Register */
+#define SNVS_LPCR_REG		0x38	/* LP Control Register */
+#define SNVS_HPSR_REG		0x14
+#define SNVS_HPSR_BTN		BIT(6)
+#define SNVS_LPSR_SPO		BIT(18)
+#define SNVS_LPCR_DEP_EN	BIT(5)
 
-#define DEBOUNCE_TIME 30
-#define REPEAT_INTERVAL 60
+#define DEBOUNCE_TIME		30
+#define REPEAT_INTERVAL		60
 
 struct pwrkey_drv_data {
 	struct regmap *snvs;
@@ -37,6 +38,7 @@ struct pwrkey_drv_data {
 	int wakeup;
 	struct timer_list check_timer;
 	struct input_dev *input;
+	u8 minor_rev;
 };
 
 static void imx_imx_snvs_check_for_events(struct timer_list *t)
@@ -67,13 +69,29 @@ static irqreturn_t imx_snvs_pwrkey_interrupt(int irq, void *dev_id)
 {
 	struct platform_device *pdev = dev_id;
 	struct pwrkey_drv_data *pdata = platform_get_drvdata(pdev);
+	struct input_dev *input = pdata->input;
 	u32 lp_status;
 
-	pm_wakeup_event(pdata->input->dev.parent, 0);
+	pm_wakeup_event(input->dev.parent, 0);
 
 	regmap_read(pdata->snvs, SNVS_LPSR_REG, &lp_status);
-	if (lp_status & SNVS_LPSR_SPO)
-		mod_timer(&pdata->check_timer, jiffies + msecs_to_jiffies(DEBOUNCE_TIME));
+	if (lp_status & SNVS_LPSR_SPO) {
+		if (pdata->minor_rev == 0) {
+			/*
+			 * The first generation i.MX6 SoCs only sends an
+			 * interrupt on button release. To mimic power-key
+			 * usage, we'll prepend a press event.
+			 */
+			input_report_key(input, pdata->keycode, 1);
+			input_sync(input);
+			input_report_key(input, pdata->keycode, 0);
+			input_sync(input);
+			pm_relax(input->dev.parent);
+		} else {
+			mod_timer(&pdata->check_timer,
+			          jiffies + msecs_to_jiffies(DEBOUNCE_TIME));
+		}
+	}
 
 	/* clear SPO status */
 	regmap_write(pdata->snvs, SNVS_LPSR_REG, SNVS_LPSR_SPO);
@@ -90,10 +108,11 @@ static void imx_snvs_pwrkey_act(void *pdata)
 
 static int imx_snvs_pwrkey_probe(struct platform_device *pdev)
 {
-	struct pwrkey_drv_data *pdata = NULL;
-	struct input_dev *input = NULL;
+	struct pwrkey_drv_data *pdata;
+	struct input_dev *input;
 	struct device_node *np;
 	int error;
+	u32 vid;
 
 	/* Get SNVS register Page */
 	np = pdev->dev.of_node;
@@ -121,6 +140,9 @@ static int imx_snvs_pwrkey_probe(struct platform_device *pdev)
 	if (pdata->irq < 0)
 		return -EINVAL;
 
+	regmap_read(pdata->snvs, SNVS_HPVIDR1_REG, &vid);
+	pdata->minor_rev = vid & 0xff;
+
 	regmap_update_bits(pdata->snvs, SNVS_LPCR_REG, SNVS_LPCR_DEP_EN, SNVS_LPCR_DEP_EN);
 
 	/* clear the unexpected interrupt before driver ready */