Merge tag 'arm-multiplatform-5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull more ARM multiplatform updates from Arnd Bergmann:
 "The second part of the multiplatform changes now converts the
  Intel/Marvell PXA platform along with the rest. The patches went
  through several rebases before the merge window as bugs were found, so
  they remained separate.

  This has to touch a lot of drivers, in particular the touchscreen,
  pcmcia, sound and clk bits, to detach the driver files from the
  platform and board specific header files"

* tag 'arm-multiplatform-5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (48 commits)
  ARM: pxa/mmp: remove traces of plat-pxa
  ARM: pxa: convert to multiplatform
  ARM: pxa/sa1100: move I/O space to PCI_IOBASE
  ARM: pxa: remove support for MTD_XIP
  ARM: pxa: move mach/*.h to mach-pxa/
  ARM: PXA: fix multi-cpu build of xsc3
  ARM: pxa: move plat-pxa to drivers/soc/
  ARM: mmp: rename pxa_register_device
  ARM: mmp: remove tavorevb board support
  ARM: pxa: remove unused mach/bitfield.h
  ARM: pxa: move clk register definitions to driver
  ARM: pxa: move smemc register access from clk to platform
  cpufreq: pxa3: move clk register access to clk driver
  ARM: pxa: remove get_clk_frequency_khz()
  ARM: pxa: pcmcia: move smemc configuration back to arch
  ASoC: pxa: i2s: use normal MMIO accessors
  ASoC: pxa: ac97: use normal MMIO accessors
  ASoC: pxa: use pdev resource for FIFO regs
  Input: wm97xx - get rid of irq_enable method in wm97xx_mach_ops
  Input: wm97xx - switch to using threaded IRQ
  ...

4 files changed, 83 insertions, 134 deletions

diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index 43c7d6e5bdc0..2d70c945b20a 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -902,6 +902,7 @@ config TOUCHSCREEN_WM9713
 config TOUCHSCREEN_WM97XX_MAINSTONE
 	tristate "WM97xx Mainstone/Palm accelerated touch"
 	depends on TOUCHSCREEN_WM97XX && ARCH_PXA
+	depends on SND_PXA2XX_LIB_AC97
 	help
 	  Say Y here for support for streaming mode with WM97xx touchscreens
 	  on Mainstone, Palm Tungsten T5, TX and LifeDrive systems.
@@ -914,6 +915,7 @@ config TOUCHSCREEN_WM97XX_MAINSTONE
 config TOUCHSCREEN_WM97XX_ZYLONITE
 	tristate "Zylonite accelerated touch"
 	depends on TOUCHSCREEN_WM97XX && MACH_ZYLONITE
+	depends on SND_PXA2XX_LIB_AC97
 	select TOUCHSCREEN_WM9713
 	help
 	  Say Y here for support for streaming mode with the touchscreen
diff --git a/drivers/input/touchscreen/mainstone-wm97xx.c b/drivers/input/touchscreen/mainstone-wm97xx.c
index f8564b398eb3..c39f49720fe4 100644
--- a/drivers/input/touchscreen/mainstone-wm97xx.c
+++ b/drivers/input/touchscreen/mainstone-wm97xx.c
@@ -21,13 +21,14 @@
 #include <linux/moduleparam.h>
 #include <linux/kernel.h>
 #include <linux/delay.h>
+#include <linux/gpio/consumer.h>
 #include <linux/irq.h>
 #include <linux/interrupt.h>
-#include <linux/wm97xx.h>
 #include <linux/io.h>
-#include <linux/gpio.h>
+#include <linux/soc/pxa/cpu.h>
+#include <linux/wm97xx.h>
 
-#include <mach/regs-ac97.h>
+#include <sound/pxa2xx-lib.h>
 
 #include <asm/mach-types.h>
 
@@ -41,24 +42,23 @@ struct continuous {
 #define WM_READS(sp) ((sp / HZ) + 1)
 
 static const struct continuous cinfo[] = {
-	{WM9705_ID2, 0, WM_READS(94), 94},
-	{WM9705_ID2, 1, WM_READS(188), 188},
-	{WM9705_ID2, 2, WM_READS(375), 375},
-	{WM9705_ID2, 3, WM_READS(750), 750},
-	{WM9712_ID2, 0, WM_READS(94), 94},
-	{WM9712_ID2, 1, WM_READS(188), 188},
-	{WM9712_ID2, 2, WM_READS(375), 375},
-	{WM9712_ID2, 3, WM_READS(750), 750},
-	{WM9713_ID2, 0, WM_READS(94), 94},
-	{WM9713_ID2, 1, WM_READS(120), 120},
-	{WM9713_ID2, 2, WM_READS(154), 154},
-	{WM9713_ID2, 3, WM_READS(188), 188},
+	{ WM9705_ID2, 0, WM_READS(94),  94  },
+	{ WM9705_ID2, 1, WM_READS(188), 188 },
+	{ WM9705_ID2, 2, WM_READS(375), 375 },
+	{ WM9705_ID2, 3, WM_READS(750), 750 },
+	{ WM9712_ID2, 0, WM_READS(94),  94  },
+	{ WM9712_ID2, 1, WM_READS(188), 188 },
+	{ WM9712_ID2, 2, WM_READS(375), 375 },
+	{ WM9712_ID2, 3, WM_READS(750), 750 },
+	{ WM9713_ID2, 0, WM_READS(94),  94  },
+	{ WM9713_ID2, 1, WM_READS(120), 120 },
+	{ WM9713_ID2, 2, WM_READS(154), 154 },
+	{ WM9713_ID2, 3, WM_READS(188), 188 },
 };
 
 /* continuous speed index */
 static int sp_idx;
-static u16 last, tries;
-static int irq;
+static struct gpio_desc *gpiod_irq;
 
 /*
  * Pen sampling frequency (Hz) in continuous mode.
@@ -97,44 +97,40 @@ MODULE_PARM_DESC(ac97_touch_slot, "Touch screen data slot AC97 number");
 
 
 /* flush AC97 slot 5 FIFO on pxa machines */
-#ifdef CONFIG_PXA27x
-static void wm97xx_acc_pen_up(struct wm97xx *wm)
-{
-	schedule_timeout_uninterruptible(1);
-
-	while (MISR & (1 << 2))
-		MODR;
-}
-#else
 static void wm97xx_acc_pen_up(struct wm97xx *wm)
 {
 	unsigned int count;
 
-	schedule_timeout_uninterruptible(1);
+	msleep(1);
 
-	for (count = 0; count < 16; count++)
-		MODR;
+	if (cpu_is_pxa27x()) {
+		while (pxa2xx_ac97_read_misr() & (1 << 2))
+			pxa2xx_ac97_read_modr();
+	} else if (cpu_is_pxa3xx()) {
+		for (count = 0; count < 16; count++)
+			pxa2xx_ac97_read_modr();
+	}
 }
-#endif
 
 static int wm97xx_acc_pen_down(struct wm97xx *wm)
 {
 	u16 x, y, p = 0x100 | WM97XX_ADCSEL_PRES;
 	int reads = 0;
+	static u16 last, tries;
 
 	/* When the AC97 queue has been drained we need to allow time
 	 * to buffer up samples otherwise we end up spinning polling
 	 * for samples.  The controller can't have a suitably low
 	 * threshold set to use the notifications it gives.
 	 */
-	schedule_timeout_uninterruptible(1);
+	msleep(1);
 
 	if (tries > 5) {
 		tries = 0;
 		return RC_PENUP;
 	}
 
-	x = MODR;
+	x = pxa2xx_ac97_read_modr();
 	if (x == last) {
 		tries++;
 		return RC_AGAIN;
@@ -142,10 +138,10 @@ static int wm97xx_acc_pen_down(struct wm97xx *wm)
 	last = x;
 	do {
 		if (reads)
-			x = MODR;
-		y = MODR;
+			x = pxa2xx_ac97_read_modr();
+		y = pxa2xx_ac97_read_modr();
 		if (pressure)
-			p = MODR;
+			p = pxa2xx_ac97_read_modr();
 
 		dev_dbg(wm->dev, "Raw coordinates: x=%x, y=%x, p=%x\n",
 			x, y, p);
@@ -194,28 +190,23 @@ static int wm97xx_acc_startup(struct wm97xx *wm)
 	/* IRQ driven touchscreen is used on Palm hardware */
 	if (machine_is_palmt5() || machine_is_palmtx() || machine_is_palmld()) {
 		pen_int = 1;
-		irq = 27;
 		/* There is some obscure mutant of WM9712 interbred with WM9713
 		 * used on Palm HW */
 		wm->variant = WM97xx_WM1613;
-	} else if (machine_is_mainstone() && pen_int)
-		irq = 4;
-
-	if (irq) {
-		ret = gpio_request(irq, "Touchscreen IRQ");
-		if (ret)
-			goto out;
-
-		ret = gpio_direction_input(irq);
-		if (ret) {
-			gpio_free(irq);
-			goto out;
-		}
+	} else if (machine_is_zylonite()) {
+		pen_int = 1;
+	}
 
-		wm->pen_irq = gpio_to_irq(irq);
+	if (pen_int) {
+		gpiod_irq = gpiod_get(wm->dev, "touch", GPIOD_IN);
+		if (IS_ERR(gpiod_irq))
+			pen_int = 0;
+	}
+
+	if (pen_int) {
+		wm->pen_irq = gpiod_to_irq(gpiod_irq);
 		irq_set_irq_type(wm->pen_irq, IRQ_TYPE_EDGE_BOTH);
-	} else /* pen irq not supported */
-		pen_int = 0;
+	}
 
 	/* codec specific irq config */
 	if (pen_int) {
@@ -242,7 +233,6 @@ static int wm97xx_acc_startup(struct wm97xx *wm)
 		}
 	}
 
-out:
 	return ret;
 }
 
@@ -250,28 +240,19 @@ static void wm97xx_acc_shutdown(struct wm97xx *wm)
 {
 	/* codec specific deconfig */
 	if (pen_int) {
-		if (irq)
-			gpio_free(irq);
+		if (gpiod_irq)
+			gpiod_put(gpiod_irq);
 		wm->pen_irq = 0;
 	}
 }
 
-static void wm97xx_irq_enable(struct wm97xx *wm, int enable)
-{
-	if (enable)
-		enable_irq(wm->pen_irq);
-	else
-		disable_irq_nosync(wm->pen_irq);
-}
-
 static struct wm97xx_mach_ops mainstone_mach_ops = {
-	.acc_enabled = 1,
-	.acc_pen_up = wm97xx_acc_pen_up,
-	.acc_pen_down = wm97xx_acc_pen_down,
-	.acc_startup = wm97xx_acc_startup,
-	.acc_shutdown = wm97xx_acc_shutdown,
-	.irq_enable = wm97xx_irq_enable,
-	.irq_gpio = WM97XX_GPIO_2,
+	.acc_enabled	= 1,
+	.acc_pen_up	= wm97xx_acc_pen_up,
+	.acc_pen_down	= wm97xx_acc_pen_down,
+	.acc_startup	= wm97xx_acc_startup,
+	.acc_shutdown	= wm97xx_acc_shutdown,
+	.irq_gpio	= WM97XX_GPIO_2,
 };
 
 static int mainstone_wm97xx_probe(struct platform_device *pdev)
@@ -286,14 +267,15 @@ static int mainstone_wm97xx_remove(struct platform_device *pdev)
 	struct wm97xx *wm = platform_get_drvdata(pdev);
 
 	wm97xx_unregister_mach_ops(wm);
+
 	return 0;
 }
 
 static struct platform_driver mainstone_wm97xx_driver = {
-	.probe = mainstone_wm97xx_probe,
-	.remove = mainstone_wm97xx_remove,
-	.driver = {
-		.name = "wm97xx-touch",
+	.probe	= mainstone_wm97xx_probe,
+	.remove	= mainstone_wm97xx_remove,
+	.driver	= {
+		.name	= "wm97xx-touch",
 	},
 };
 module_platform_driver(mainstone_wm97xx_driver);
diff --git a/drivers/input/touchscreen/wm97xx-core.c b/drivers/input/touchscreen/wm97xx-core.c
index 1b58611c8084..2757c7768ffe 100644
--- a/drivers/input/touchscreen/wm97xx-core.c
+++ b/drivers/input/touchscreen/wm97xx-core.c
@@ -285,11 +285,12 @@ void wm97xx_set_suspend_mode(struct wm97xx *wm, u16 mode)
 EXPORT_SYMBOL_GPL(wm97xx_set_suspend_mode);
 
 /*
- * Handle a pen down interrupt.
+ * Codec PENDOWN irq handler
+ *
  */
-static void wm97xx_pen_irq_worker(struct work_struct *work)
+static irqreturn_t wm97xx_pen_interrupt(int irq, void *dev_id)
 {
-	struct wm97xx *wm = container_of(work, struct wm97xx, pen_event_work);
+	struct wm97xx *wm = dev_id;
 	int pen_was_down = wm->pen_is_down;
 
 	/* do we need to enable the touch panel reader */
@@ -343,27 +344,6 @@ static void wm97xx_pen_irq_worker(struct work_struct *work)
 	if (!wm->pen_is_down && wm->mach_ops->acc_enabled)
 		wm->mach_ops->acc_pen_up(wm);
 
-	wm->mach_ops->irq_enable(wm, 1);
-}
-
-/*
- * Codec PENDOWN irq handler
- *
- * We have to disable the codec interrupt in the handler because it
- * can take up to 1ms to clear the interrupt source. We schedule a task
- * in a work queue to do the actual interaction with the chip.  The
- * interrupt is then enabled again in the slow handler when the source
- * has been cleared.
- */
-static irqreturn_t wm97xx_pen_interrupt(int irq, void *dev_id)
-{
-	struct wm97xx *wm = dev_id;
-
-	if (!work_pending(&wm->pen_event_work)) {
-		wm->mach_ops->irq_enable(wm, 0);
-		queue_work(wm->ts_workq, &wm->pen_event_work);
-	}
-
 	return IRQ_HANDLED;
 }
 
@@ -374,12 +354,9 @@ static int wm97xx_init_pen_irq(struct wm97xx *wm)
 {
 	u16 reg;
 
-	/* If an interrupt is supplied an IRQ enable operation must also be
-	 * provided. */
-	BUG_ON(!wm->mach_ops->irq_enable);
-
-	if (request_irq(wm->pen_irq, wm97xx_pen_interrupt, IRQF_SHARED,
-			"wm97xx-pen", wm)) {
+	if (request_threaded_irq(wm->pen_irq, NULL, wm97xx_pen_interrupt,
+				 IRQF_SHARED | IRQF_ONESHOT,
+				 "wm97xx-pen", wm)) {
 		dev_err(wm->dev,
 			"Failed to register pen down interrupt, polling");
 		wm->pen_irq = 0;
@@ -509,7 +486,6 @@ static int wm97xx_ts_input_open(struct input_dev *idev)
 	wm->codec->dig_enable(wm, 1);
 
 	INIT_DELAYED_WORK(&wm->ts_reader, wm97xx_ts_reader);
-	INIT_WORK(&wm->pen_event_work, wm97xx_pen_irq_worker);
 
 	wm->ts_reader_min_interval = HZ >= 100 ? HZ / 100 : 1;
 	if (wm->ts_reader_min_interval < 1)
@@ -560,10 +536,6 @@ static void wm97xx_ts_input_close(struct input_dev *idev)
 
 	wm->pen_is_down = 0;
 
-	/* Balance out interrupt disables/enables */
-	if (cancel_work_sync(&wm->pen_event_work))
-		wm->mach_ops->irq_enable(wm, 1);
-
 	/* ts_reader rearms itself so we need to explicitly stop it
 	 * before we destroy the workqueue.
 	 */
diff --git a/drivers/input/touchscreen/zylonite-wm97xx.c b/drivers/input/touchscreen/zylonite-wm97xx.c
index 0f4ac7f844ce..a70fe4abe520 100644
--- a/drivers/input/touchscreen/zylonite-wm97xx.c
+++ b/drivers/input/touchscreen/zylonite-wm97xx.c
@@ -17,15 +17,14 @@
 #include <linux/moduleparam.h>
 #include <linux/kernel.h>
 #include <linux/delay.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 #include <linux/irq.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
+#include <linux/soc/pxa/cpu.h>
 #include <linux/wm97xx.h>
 
-#include <mach/hardware.h>
-#include <mach/mfp.h>
-#include <mach/regs-ac97.h>
+#include <sound/pxa2xx-lib.h>
 
 struct continuous {
 	u16 id;    /* codec id */
@@ -80,7 +79,7 @@ static void wm97xx_acc_pen_up(struct wm97xx *wm)
 	msleep(1);
 
 	for (i = 0; i < 16; i++)
-		MODR;
+		pxa2xx_ac97_read_modr();
 }
 
 static int wm97xx_acc_pen_down(struct wm97xx *wm)
@@ -101,7 +100,7 @@ static int wm97xx_acc_pen_down(struct wm97xx *wm)
 		return RC_PENUP;
 	}
 
-	x = MODR;
+	x = pxa2xx_ac97_read_modr();
 	if (x == last) {
 		tries++;
 		return RC_AGAIN;
@@ -109,10 +108,10 @@ static int wm97xx_acc_pen_down(struct wm97xx *wm)
 	last = x;
 	do {
 		if (reads)
-			x = MODR;
-		y = MODR;
+			x = pxa2xx_ac97_read_modr();
+		y = pxa2xx_ac97_read_modr();
 		if (pressure)
-			p = MODR;
+			p = pxa2xx_ac97_read_modr();
 
 		dev_dbg(wm->dev, "Raw coordinates: x=%x, y=%x, p=%x\n",
 			x, y, p);
@@ -161,34 +160,28 @@ static int wm97xx_acc_startup(struct wm97xx *wm)
 	return 0;
 }
 
-static void wm97xx_irq_enable(struct wm97xx *wm, int enable)
-{
-	if (enable)
-		enable_irq(wm->pen_irq);
-	else
-		disable_irq_nosync(wm->pen_irq);
-}
-
 static struct wm97xx_mach_ops zylonite_mach_ops = {
 	.acc_enabled	= 1,
 	.acc_pen_up	= wm97xx_acc_pen_up,
 	.acc_pen_down	= wm97xx_acc_pen_down,
 	.acc_startup	= wm97xx_acc_startup,
-	.irq_enable	= wm97xx_irq_enable,
 	.irq_gpio	= WM97XX_GPIO_2,
 };
 
 static int zylonite_wm97xx_probe(struct platform_device *pdev)
 {
 	struct wm97xx *wm = platform_get_drvdata(pdev);
-	int gpio_touch_irq;
-
-	if (cpu_is_pxa320())
-		gpio_touch_irq = mfp_to_gpio(MFP_PIN_GPIO15);
-	else
-		gpio_touch_irq = mfp_to_gpio(MFP_PIN_GPIO26);
+	struct gpio_desc *gpio_touch_irq;
+	int err;
+
+	gpio_touch_irq = devm_gpiod_get(&pdev->dev, "touch", GPIOD_IN);
+	err = PTR_ERR_OR_ZERO(gpio_touch_irq);
+	if (err) {
+		dev_err(&pdev->dev, "Cannot get irq gpio: %d\n", err);
+		return err;
+	}
 
-	wm->pen_irq = gpio_to_irq(gpio_touch_irq);
+	wm->pen_irq = gpiod_to_irq(gpio_touch_irq);
 	irq_set_irq_type(wm->pen_irq, IRQ_TYPE_EDGE_BOTH);
 
 	wm97xx_config_gpio(wm, WM97XX_GPIO_13, WM97XX_GPIO_IN,