Merge tag 'v4.20' into for-linus
Sync with mainline to get linux/overflow.h among other things.
diff --git a/Documentation/devicetree/bindings/input/touchscreen/raspberrypi,firmware-ts.txt b/Documentation/devicetree/bindings/input/touchscreen/raspberrypi,firmware-ts.txt
new file mode 100644
index 0000000..2a1af24
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/raspberrypi,firmware-ts.txt
@@ -0,0 +1,26 @@
+Raspberry Pi firmware based 7" touchscreen
+=====================================
+
+Required properties:
+ - compatible: "raspberrypi,firmware-ts"
+
+Optional properties:
+ - firmware: Reference to RPi's firmware device node
+ - touchscreen-size-x: See touchscreen.txt
+ - touchscreen-size-y: See touchscreen.txt
+ - touchscreen-inverted-x: See touchscreen.txt
+ - touchscreen-inverted-y: See touchscreen.txt
+ - touchscreen-swapped-x-y: See touchscreen.txt
+
+Example:
+
+firmware: firmware-rpi {
+ compatible = "raspberrypi,bcm2835-firmware";
+ mboxes = <&mailbox>;
+
+ ts: touchscreen {
+ compatible = "raspberrypi,firmware-ts";
+ touchscreen-size-x = <800>;
+ touchscreen-size-y = <480>;
+ };
+};
diff --git a/Documentation/devicetree/bindings/serio/olpc,ap-sp.txt b/Documentation/devicetree/bindings/serio/olpc,ap-sp.txt
index 0e72183..3660341 100644
--- a/Documentation/devicetree/bindings/serio/olpc,ap-sp.txt
+++ b/Documentation/devicetree/bindings/serio/olpc,ap-sp.txt
@@ -4,10 +4,14 @@
- compatible : "olpc,ap-sp"
- reg : base address and length of SoC's WTM registers
- interrupts : SP-AP interrupt
+- clocks : phandle + clock-specifier for the clock that drives the WTM
+- clock-names: should be "sp"
Example:
ap-sp@d4290000 {
compatible = "olpc,ap-sp";
reg = <0xd4290000 0x1000>;
interrupts = <40>;
+ clocks = <&soc_clocks MMP2_CLK_SP>;
+ clock-names = "sp";
}
diff --git a/drivers/clk/mmp/clk-of-mmp2.c b/drivers/clk/mmp/clk-of-mmp2.c
index d083b86..61fefc0 100644
--- a/drivers/clk/mmp/clk-of-mmp2.c
+++ b/drivers/clk/mmp/clk-of-mmp2.c
@@ -53,6 +53,7 @@
#define APMU_DISP1 0x110
#define APMU_CCIC0 0x50
#define APMU_CCIC1 0xf4
+#define APMU_SP 0x68
#define MPMU_UART_PLL 0x14
struct mmp2_clk_unit {
@@ -209,6 +210,8 @@ static struct mmp_clk_mix_config ccic1_mix_config = {
.reg_info = DEFINE_MIX_REG_INFO(4, 16, 2, 6, 32),
};
+static DEFINE_SPINLOCK(sp_lock);
+
static struct mmp_param_mux_clk apmu_mux_clks[] = {
{MMP2_CLK_DISP0_MUX, "disp0_mux", disp_parent_names, ARRAY_SIZE(disp_parent_names), CLK_SET_RATE_PARENT, APMU_DISP0, 6, 2, 0, &disp0_lock},
{MMP2_CLK_DISP1_MUX, "disp1_mux", disp_parent_names, ARRAY_SIZE(disp_parent_names), CLK_SET_RATE_PARENT, APMU_DISP1, 6, 2, 0, &disp1_lock},
@@ -239,6 +242,7 @@ static struct mmp_param_gate_clk apmu_gate_clks[] = {
{MMP2_CLK_CCIC1, "ccic1_clk", "ccic1_mix_clk", CLK_SET_RATE_PARENT, APMU_CCIC1, 0x1b, 0x1b, 0x0, 0, &ccic1_lock},
{MMP2_CLK_CCIC1_PHY, "ccic1_phy_clk", "ccic1_mix_clk", CLK_SET_RATE_PARENT, APMU_CCIC1, 0x24, 0x24, 0x0, 0, &ccic1_lock},
{MMP2_CLK_CCIC1_SPHY, "ccic1_sphy_clk", "ccic1_sphy_div", CLK_SET_RATE_PARENT, APMU_CCIC1, 0x300, 0x300, 0x0, 0, &ccic1_lock},
+ {MMP2_CLK_SP, "sp_clk", NULL, CLK_SET_RATE_PARENT, APMU_SP, 0x1b, 0x1b, 0x0, 0, &sp_lock},
};
static void mmp2_axi_periph_clk_init(struct mmp2_clk_unit *pxa_unit)
diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
index cfc8b94..aa4e431 100644
--- a/drivers/input/joystick/xpad.c
+++ b/drivers/input/joystick/xpad.c
@@ -252,6 +252,8 @@ static const struct xpad_device {
{ 0x0f30, 0x0202, "Joytech Advanced Controller", 0, XTYPE_XBOX },
{ 0x0f30, 0x8888, "BigBen XBMiniPad Controller", 0, XTYPE_XBOX },
{ 0x102c, 0xff0c, "Joytech Wireless Advanced Controller", 0, XTYPE_XBOX },
+ { 0x1038, 0x1430, "SteelSeries Stratus Duo", 0, XTYPE_XBOX360 },
+ { 0x1038, 0x1431, "SteelSeries Stratus Duo", 0, XTYPE_XBOX360 },
{ 0x11c9, 0x55f0, "Nacon GC-100XF", 0, XTYPE_XBOX360 },
{ 0x12ab, 0x0004, "Honey Bee Xbox360 dancepad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360 },
{ 0x12ab, 0x0301, "PDP AFTERGLOW AX.1", 0, XTYPE_XBOX360 },
@@ -428,6 +430,7 @@ static const struct usb_device_id xpad_table[] = {
XPAD_XBOXONE_VENDOR(0x0e6f), /* 0x0e6f X-Box One controllers */
XPAD_XBOX360_VENDOR(0x0f0d), /* Hori Controllers */
XPAD_XBOXONE_VENDOR(0x0f0d), /* Hori Controllers */
+ XPAD_XBOX360_VENDOR(0x1038), /* SteelSeries Controllers */
XPAD_XBOX360_VENDOR(0x11c9), /* Nacon GC100XF */
XPAD_XBOX360_VENDOR(0x12ab), /* X-Box 360 dance pads */
XPAD_XBOX360_VENDOR(0x1430), /* RedOctane X-Box 360 controllers */
diff --git a/drivers/input/keyboard/nomadik-ske-keypad.c b/drivers/input/keyboard/nomadik-ske-keypad.c
index 8567ee4..ae3b045 100644
--- a/drivers/input/keyboard/nomadik-ske-keypad.c
+++ b/drivers/input/keyboard/nomadik-ske-keypad.c
@@ -100,7 +100,7 @@ static int __init ske_keypad_chip_init(struct ske_keypad *keypad)
while ((readl(keypad->reg_base + SKE_RIS) != 0x00000000) && timeout--)
cpu_relax();
- if (!timeout)
+ if (timeout == -1)
return -EINVAL;
/*
diff --git a/drivers/input/misc/drv2667.c b/drivers/input/misc/drv2667.c
index 2849bb6..6091f04 100644
--- a/drivers/input/misc/drv2667.c
+++ b/drivers/input/misc/drv2667.c
@@ -177,9 +177,9 @@ static int drv2667_set_waveform_freq(struct drv2667_data *haptics)
error = regmap_write(haptics->regmap, DRV2667_PAGE, read_buf);
if (error) {
dev_err(&haptics->client->dev,
- "Failed to set the page: %d\n", error);
- return -EIO;
- }
+ "Failed to set the page: %d\n", error);
+ return -EIO;
+ }
}
return error;
diff --git a/drivers/input/misc/rotary_encoder.c b/drivers/input/misc/rotary_encoder.c
index 30ec77a..d748897 100644
--- a/drivers/input/misc/rotary_encoder.c
+++ b/drivers/input/misc/rotary_encoder.c
@@ -240,8 +240,10 @@ static int rotary_encoder_probe(struct platform_device *pdev)
encoder->gpios = devm_gpiod_get_array(dev, NULL, GPIOD_IN);
if (IS_ERR(encoder->gpios)) {
- dev_err(dev, "unable to get gpios\n");
- return PTR_ERR(encoder->gpios);
+ err = PTR_ERR(encoder->gpios);
+ if (err != -EPROBE_DEFER)
+ dev_err(dev, "unable to get gpios: %d\n", err);
+ return err;
}
if (encoder->gpios->ndescs < 2) {
dev_err(dev, "not enough gpios found\n");
diff --git a/drivers/input/mouse/elan_i2c_core.c b/drivers/input/mouse/elan_i2c_core.c
index a94b649..f322a17 100644
--- a/drivers/input/mouse/elan_i2c_core.c
+++ b/drivers/input/mouse/elan_i2c_core.c
@@ -1336,6 +1336,7 @@ MODULE_DEVICE_TABLE(i2c, elan_id);
static const struct acpi_device_id elan_acpi_id[] = {
{ "ELAN0000", 0 },
{ "ELAN0100", 0 },
+ { "ELAN0501", 0 },
{ "ELAN0600", 0 },
{ "ELAN0602", 0 },
{ "ELAN0605", 0 },
diff --git a/drivers/input/serio/Kconfig b/drivers/input/serio/Kconfig
index d90d9f1..c9c7224 100644
--- a/drivers/input/serio/Kconfig
+++ b/drivers/input/serio/Kconfig
@@ -254,7 +254,6 @@
config SERIO_OLPC_APSP
tristate "OLPC AP-SP input support"
- depends on OLPC || COMPILE_TEST
help
Say Y here if you want support for the keyboard and touchpad included
in the OLPC XO-1.75 and XO-4 laptops.
diff --git a/drivers/input/serio/olpc_apsp.c b/drivers/input/serio/olpc_apsp.c
index 8e9a420..b360847 100644
--- a/drivers/input/serio/olpc_apsp.c
+++ b/drivers/input/serio/olpc_apsp.c
@@ -23,6 +23,7 @@
#include <linux/of.h>
#include <linux/slab.h>
#include <linux/delay.h>
+#include <linux/clk.h>
/*
* The OLPC XO-1.75 and XO-4 laptops do not have a hardware PS/2 controller.
@@ -74,6 +75,7 @@ struct olpc_apsp {
struct serio *kbio;
struct serio *padio;
void __iomem *base;
+ struct clk *clk;
int open_count;
int irq;
};
@@ -145,8 +147,21 @@ static int olpc_apsp_open(struct serio *port)
{
struct olpc_apsp *priv = port->port_data;
unsigned int tmp;
+ unsigned long l;
+ int error;
if (priv->open_count++ == 0) {
+ error = clk_prepare_enable(priv->clk);
+ if (error)
+ return error;
+
+ l = readl(priv->base + COMMAND_FIFO_STATUS);
+ if (!(l & CMD_STS_MASK)) {
+ dev_err(priv->dev, "SP cannot accept commands.\n");
+ clk_disable_unprepare(priv->clk);
+ return -EIO;
+ }
+
/* Enable interrupt 0 by clearing its bit */
tmp = readl(priv->base + PJ_INTERRUPT_MASK);
writel(tmp & ~INT_0, priv->base + PJ_INTERRUPT_MASK);
@@ -164,6 +179,8 @@ static void olpc_apsp_close(struct serio *port)
/* Disable interrupt 0 */
tmp = readl(priv->base + PJ_INTERRUPT_MASK);
writel(tmp | INT_0, priv->base + PJ_INTERRUPT_MASK);
+
+ clk_disable_unprepare(priv->clk);
}
}
@@ -172,15 +189,12 @@ static int olpc_apsp_probe(struct platform_device *pdev)
struct serio *kb_serio, *pad_serio;
struct olpc_apsp *priv;
struct resource *res;
- struct device_node *np;
- unsigned long l;
int error;
priv = devm_kzalloc(&pdev->dev, sizeof(struct olpc_apsp), GFP_KERNEL);
if (!priv)
return -ENOMEM;
- np = pdev->dev.of_node;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
priv->base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(priv->base)) {
@@ -192,11 +206,9 @@ static int olpc_apsp_probe(struct platform_device *pdev)
if (priv->irq < 0)
return priv->irq;
- l = readl(priv->base + COMMAND_FIFO_STATUS);
- if (!(l & CMD_STS_MASK)) {
- dev_err(&pdev->dev, "SP cannot accept commands.\n");
- return -EIO;
- }
+ priv->clk = devm_clk_get(&pdev->dev, "sp");
+ if (IS_ERR(priv->clk))
+ return PTR_ERR(priv->clk);
/* KEYBOARD */
kb_serio = kzalloc(sizeof(struct serio), GFP_KERNEL);
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index 2a80675..068dbbc 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -696,6 +696,18 @@
To compile this driver as a module, choose M here: the
module will be called edt-ft5x06.
+config TOUCHSCREEN_RASPBERRYPI_FW
+ tristate "Raspberry Pi's firmware base touch screen support"
+ depends on RASPBERRYPI_FIRMWARE || (RASPBERRYPI_FIRMWARE=n && COMPILE_TEST)
+ help
+ Say Y here if you have the official Raspberry Pi 7 inch screen on
+ your system.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called raspberrypi-ts.
+
config TOUCHSCREEN_MIGOR
tristate "Renesas MIGO-R touchscreen"
depends on (SH_MIGOR || COMPILE_TEST) && I2C
diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile
index 5911a41..fcc7605 100644
--- a/drivers/input/touchscreen/Makefile
+++ b/drivers/input/touchscreen/Makefile
@@ -109,3 +109,4 @@
obj-$(CONFIG_TOUCHSCREEN_ZFORCE) += zforce_ts.o
obj-$(CONFIG_TOUCHSCREEN_COLIBRI_VF50) += colibri-vf50-ts.o
obj-$(CONFIG_TOUCHSCREEN_ROHM_BU21023) += rohm_bu21023.o
+obj-$(CONFIG_TOUCHSCREEN_RASPBERRYPI_FW) += raspberrypi-ts.o
diff --git a/drivers/input/touchscreen/ad7879.c b/drivers/input/touchscreen/ad7879.c
index 6bad23ee..6fa714c 100644
--- a/drivers/input/touchscreen/ad7879.c
+++ b/drivers/input/touchscreen/ad7879.c
@@ -29,10 +29,9 @@
#include <linux/property.h>
#include <linux/regmap.h>
#include <linux/slab.h>
-#include <linux/gpio.h>
+#include <linux/gpio/driver.h>
#include <linux/input/touchscreen.h>
-#include <linux/platform_data/ad7879.h>
#include <linux/module.h>
#include "ad7879.h"
@@ -290,7 +289,7 @@ static int ad7879_open(struct input_dev *input)
return 0;
}
-static void ad7879_close(struct input_dev* input)
+static void ad7879_close(struct input_dev *input)
{
struct ad7879 *ts = input_get_drvdata(input);
@@ -452,47 +451,36 @@ static void ad7879_gpio_set_value(struct gpio_chip *chip,
mutex_unlock(&ts->mutex);
}
-static int ad7879_gpio_add(struct ad7879 *ts,
- const struct ad7879_platform_data *pdata)
+static int ad7879_gpio_add(struct ad7879 *ts)
{
- bool gpio_export;
- int gpio_base;
int ret = 0;
- if (pdata) {
- gpio_export = pdata->gpio_export;
- gpio_base = pdata->gpio_base;
- } else {
- gpio_export = device_property_read_bool(ts->dev,
- "gpio-controller");
- gpio_base = -1;
- }
-
mutex_init(&ts->mutex);
- if (gpio_export) {
- ts->gc.direction_input = ad7879_gpio_direction_input;
- ts->gc.direction_output = ad7879_gpio_direction_output;
- ts->gc.get = ad7879_gpio_get_value;
- ts->gc.set = ad7879_gpio_set_value;
- ts->gc.can_sleep = 1;
- ts->gc.base = gpio_base;
- ts->gc.ngpio = 1;
- ts->gc.label = "AD7879-GPIO";
- ts->gc.owner = THIS_MODULE;
- ts->gc.parent = ts->dev;
+ /* Do not create a chip unless flagged for it */
+ if (!device_property_read_bool(ts->dev, "gpio-controller"))
+ return 0;
- ret = devm_gpiochip_add_data(ts->dev, &ts->gc, ts);
- if (ret)
- dev_err(ts->dev, "failed to register gpio %d\n",
- ts->gc.base);
- }
+ ts->gc.direction_input = ad7879_gpio_direction_input;
+ ts->gc.direction_output = ad7879_gpio_direction_output;
+ ts->gc.get = ad7879_gpio_get_value;
+ ts->gc.set = ad7879_gpio_set_value;
+ ts->gc.can_sleep = 1;
+ ts->gc.base = -1;
+ ts->gc.ngpio = 1;
+ ts->gc.label = "AD7879-GPIO";
+ ts->gc.owner = THIS_MODULE;
+ ts->gc.parent = ts->dev;
+
+ ret = devm_gpiochip_add_data(ts->dev, &ts->gc, ts);
+ if (ret)
+ dev_err(ts->dev, "failed to register gpio %d\n",
+ ts->gc.base);
return ret;
}
#else
-static int ad7879_gpio_add(struct ad7879 *ts,
- const struct ad7879_platform_data *pdata)
+static int ad7879_gpio_add(struct ad7879 *ts)
{
return 0;
}
@@ -527,7 +515,6 @@ static int ad7879_parse_dt(struct device *dev, struct ad7879 *ts)
int ad7879_probe(struct device *dev, struct regmap *regmap,
int irq, u16 bustype, u8 devid)
{
- struct ad7879_platform_data *pdata = dev_get_platdata(dev);
struct ad7879 *ts;
struct input_dev *input_dev;
int err;
@@ -542,22 +529,9 @@ int ad7879_probe(struct device *dev, struct regmap *regmap,
if (!ts)
return -ENOMEM;
- if (pdata) {
- /* Platform data use swapped axis (backward compatibility) */
- ts->swap_xy = !pdata->swap_xy;
-
- ts->x_plate_ohms = pdata->x_plate_ohms ? : 400;
-
- ts->first_conversion_delay = pdata->first_conversion_delay;
- ts->acquisition_time = pdata->acquisition_time;
- ts->averaging = pdata->averaging;
- ts->pen_down_acc_interval = pdata->pen_down_acc_interval;
- ts->median = pdata->median;
- } else {
- err = ad7879_parse_dt(dev, ts);
- if (err)
- return err;
- }
+ err = ad7879_parse_dt(dev, ts);
+ if (err)
+ return err;
input_dev = devm_input_allocate_device(dev);
if (!input_dev) {
@@ -585,28 +559,13 @@ int ad7879_probe(struct device *dev, struct regmap *regmap,
input_set_capability(input_dev, EV_KEY, BTN_TOUCH);
- if (pdata) {
- input_set_abs_params(input_dev, ABS_X,
- pdata->x_min ? : 0,
- pdata->x_max ? : MAX_12BIT,
- 0, 0);
- input_set_abs_params(input_dev, ABS_Y,
- pdata->y_min ? : 0,
- pdata->y_max ? : MAX_12BIT,
- 0, 0);
- input_set_abs_params(input_dev, ABS_PRESSURE,
- pdata->pressure_min,
- pdata->pressure_max ? : ~0,
- 0, 0);
- } else {
- input_set_abs_params(input_dev, ABS_X, 0, MAX_12BIT, 0, 0);
- input_set_abs_params(input_dev, ABS_Y, 0, MAX_12BIT, 0, 0);
- input_set_capability(input_dev, EV_ABS, ABS_PRESSURE);
- touchscreen_parse_properties(input_dev, false, NULL);
- if (!input_abs_get_max(input_dev, ABS_PRESSURE)) {
- dev_err(dev, "Touchscreen pressure is not specified\n");
- return -EINVAL;
- }
+ input_set_abs_params(input_dev, ABS_X, 0, MAX_12BIT, 0, 0);
+ input_set_abs_params(input_dev, ABS_Y, 0, MAX_12BIT, 0, 0);
+ input_set_capability(input_dev, EV_ABS, ABS_PRESSURE);
+ touchscreen_parse_properties(input_dev, false, NULL);
+ if (!input_abs_get_max(input_dev, ABS_PRESSURE)) {
+ dev_err(dev, "Touchscreen pressure is not specified\n");
+ return -EINVAL;
}
err = ad7879_write(ts, AD7879_REG_CTRL2, AD7879_RESET);
@@ -655,7 +614,7 @@ int ad7879_probe(struct device *dev, struct regmap *regmap,
if (err)
return err;
- err = ad7879_gpio_add(ts, pdata);
+ err = ad7879_gpio_add(ts);
if (err)
return err;
diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index d3aacd5..5c63d25 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -1585,10 +1585,10 @@ static int mxt_update_cfg(struct mxt_data *data, const struct firmware *fw)
/* T7 config may have changed */
mxt_init_t7_power_cfg(data);
-release_raw:
- kfree(cfg.raw);
release_mem:
kfree(cfg.mem);
+release_raw:
+ kfree(cfg.raw);
return ret;
}
diff --git a/drivers/input/touchscreen/ektf2127.c b/drivers/input/touchscreen/ektf2127.c
index 0ed34ff..28fa1b3 100644
--- a/drivers/input/touchscreen/ektf2127.c
+++ b/drivers/input/touchscreen/ektf2127.c
@@ -51,7 +51,7 @@ struct ektf2127_ts {
struct touchscreen_properties prop;
};
-static void ektf2127_parse_coordinates(const u8* buf, unsigned int touch_count,
+static void ektf2127_parse_coordinates(const u8 *buf, unsigned int touch_count,
struct input_mt_pos *touches)
{
int index = 0;
diff --git a/drivers/input/touchscreen/gunze.c b/drivers/input/touchscreen/gunze.c
index 054c253..56cf1a1 100644
--- a/drivers/input/touchscreen/gunze.c
+++ b/drivers/input/touchscreen/gunze.c
@@ -53,7 +53,7 @@ struct gunze {
char phys[32];
};
-static void gunze_process_packet(struct gunze* gunze)
+static void gunze_process_packet(struct gunze *gunze)
{
struct input_dev *dev = gunze->dev;
@@ -72,7 +72,7 @@ static void gunze_process_packet(struct gunze* gunze)
static irqreturn_t gunze_interrupt(struct serio *serio,
unsigned char data, unsigned int flags)
{
- struct gunze* gunze = serio_get_drvdata(serio);
+ struct gunze *gunze = serio_get_drvdata(serio);
if (data == '\r') {
gunze_process_packet(gunze);
diff --git a/drivers/input/touchscreen/inexio.c b/drivers/input/touchscreen/inexio.c
index b9bc562..13bd0bf 100644
--- a/drivers/input/touchscreen/inexio.c
+++ b/drivers/input/touchscreen/inexio.c
@@ -79,7 +79,7 @@ static void inexio_process_data(struct inexio *pinexio)
static irqreturn_t inexio_interrupt(struct serio *serio,
unsigned char data, unsigned int flags)
{
- struct inexio* pinexio = serio_get_drvdata(serio);
+ struct inexio *pinexio = serio_get_drvdata(serio);
pinexio->data[pinexio->idx] = data;
@@ -97,7 +97,7 @@ static irqreturn_t inexio_interrupt(struct serio *serio,
static void inexio_disconnect(struct serio *serio)
{
- struct inexio* pinexio = serio_get_drvdata(serio);
+ struct inexio *pinexio = serio_get_drvdata(serio);
input_get_device(pinexio->dev);
input_unregister_device(pinexio->dev);
diff --git a/drivers/input/touchscreen/mtouch.c b/drivers/input/touchscreen/mtouch.c
index a3707fa..8278a90 100644
--- a/drivers/input/touchscreen/mtouch.c
+++ b/drivers/input/touchscreen/mtouch.c
@@ -90,7 +90,7 @@ static void mtouch_process_response(struct mtouch *mtouch)
static irqreturn_t mtouch_interrupt(struct serio *serio,
unsigned char data, unsigned int flags)
{
- struct mtouch* mtouch = serio_get_drvdata(serio);
+ struct mtouch *mtouch = serio_get_drvdata(serio);
mtouch->data[mtouch->idx] = data;
@@ -110,7 +110,7 @@ static irqreturn_t mtouch_interrupt(struct serio *serio,
static void mtouch_disconnect(struct serio *serio)
{
- struct mtouch* mtouch = serio_get_drvdata(serio);
+ struct mtouch *mtouch = serio_get_drvdata(serio);
input_get_device(mtouch->dev);
input_unregister_device(mtouch->dev);
diff --git a/drivers/input/touchscreen/raspberrypi-ts.c b/drivers/input/touchscreen/raspberrypi-ts.c
new file mode 100644
index 0000000..f456c11
--- /dev/null
+++ b/drivers/input/touchscreen/raspberrypi-ts.c
@@ -0,0 +1,227 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Raspberry Pi firmware based touchscreen driver
+ *
+ * Copyright (C) 2015, 2017 Raspberry Pi
+ * Copyright (C) 2018 Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
+ */
+
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/slab.h>
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/bitops.h>
+#include <linux/dma-mapping.h>
+#include <linux/platform_device.h>
+#include <linux/input.h>
+#include <linux/input/mt.h>
+#include <linux/input-polldev.h>
+#include <linux/input/touchscreen.h>
+#include <soc/bcm2835/raspberrypi-firmware.h>
+
+#define RPI_TS_DEFAULT_WIDTH 800
+#define RPI_TS_DEFAULT_HEIGHT 480
+
+#define RPI_TS_MAX_SUPPORTED_POINTS 10
+
+#define RPI_TS_FTS_TOUCH_DOWN 0
+#define RPI_TS_FTS_TOUCH_CONTACT 2
+
+#define RPI_TS_POLL_INTERVAL 17 /* 60fps */
+
+#define RPI_TS_NPOINTS_REG_INVALIDATE 99
+
+struct rpi_ts {
+ struct platform_device *pdev;
+ struct input_polled_dev *poll_dev;
+ struct touchscreen_properties prop;
+
+ void __iomem *fw_regs_va;
+ dma_addr_t fw_regs_phys;
+
+ int known_ids;
+};
+
+struct rpi_ts_regs {
+ u8 device_mode;
+ u8 gesture_id;
+ u8 num_points;
+ struct rpi_ts_touch {
+ u8 xh;
+ u8 xl;
+ u8 yh;
+ u8 yl;
+ u8 pressure; /* Not supported */
+ u8 area; /* Not supported */
+ } point[RPI_TS_MAX_SUPPORTED_POINTS];
+};
+
+static void rpi_ts_poll(struct input_polled_dev *dev)
+{
+ struct input_dev *input = dev->input;
+ struct rpi_ts *ts = dev->private;
+ struct rpi_ts_regs regs;
+ int modified_ids = 0;
+ long released_ids;
+ int event_type;
+ int touchid;
+ int x, y;
+ int i;
+
+ memcpy_fromio(®s, ts->fw_regs_va, sizeof(regs));
+ /*
+ * We poll the memory based register copy of the touchscreen chip using
+ * the number of points register to know whether the copy has been
+ * updated (we write 99 to the memory copy, the GPU will write between
+ * 0 - 10 points)
+ */
+ iowrite8(RPI_TS_NPOINTS_REG_INVALIDATE,
+ ts->fw_regs_va + offsetof(struct rpi_ts_regs, num_points));
+
+ if (regs.num_points == RPI_TS_NPOINTS_REG_INVALIDATE ||
+ (regs.num_points == 0 && ts->known_ids == 0))
+ return;
+
+ for (i = 0; i < regs.num_points; i++) {
+ x = (((int)regs.point[i].xh & 0xf) << 8) + regs.point[i].xl;
+ y = (((int)regs.point[i].yh & 0xf) << 8) + regs.point[i].yl;
+ touchid = (regs.point[i].yh >> 4) & 0xf;
+ event_type = (regs.point[i].xh >> 6) & 0x03;
+
+ modified_ids |= BIT(touchid);
+
+ if (event_type == RPI_TS_FTS_TOUCH_DOWN ||
+ event_type == RPI_TS_FTS_TOUCH_CONTACT) {
+ input_mt_slot(input, touchid);
+ input_mt_report_slot_state(input, MT_TOOL_FINGER, 1);
+ touchscreen_report_pos(input, &ts->prop, x, y, true);
+ }
+ }
+
+ released_ids = ts->known_ids & ~modified_ids;
+ for_each_set_bit(i, &released_ids, RPI_TS_MAX_SUPPORTED_POINTS) {
+ input_mt_slot(input, i);
+ input_mt_report_slot_state(input, MT_TOOL_FINGER, 0);
+ modified_ids &= ~(BIT(i));
+ }
+ ts->known_ids = modified_ids;
+
+ input_mt_sync_frame(input);
+ input_sync(input);
+}
+
+static void rpi_ts_dma_cleanup(void *data)
+{
+ struct rpi_ts *ts = data;
+ struct device *dev = &ts->pdev->dev;
+
+ dma_free_coherent(dev, PAGE_SIZE, ts->fw_regs_va, ts->fw_regs_phys);
+}
+
+static int rpi_ts_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct device_node *np = dev->of_node;
+ struct input_polled_dev *poll_dev;
+ struct device_node *fw_node;
+ struct rpi_firmware *fw;
+ struct input_dev *input;
+ struct rpi_ts *ts;
+ u32 touchbuf;
+ int error;
+
+ fw_node = of_get_parent(np);
+ if (!fw_node) {
+ dev_err(dev, "Missing firmware node\n");
+ return -ENOENT;
+ }
+
+ fw = rpi_firmware_get(fw_node);
+ of_node_put(fw_node);
+ if (!fw)
+ return -EPROBE_DEFER;
+
+ ts = devm_kzalloc(dev, sizeof(*ts), GFP_KERNEL);
+ if (!ts)
+ return -ENOMEM;
+ ts->pdev = pdev;
+
+ ts->fw_regs_va = dma_zalloc_coherent(dev, PAGE_SIZE, &ts->fw_regs_phys,
+ GFP_KERNEL);
+ if (!ts->fw_regs_va) {
+ dev_err(dev, "failed to dma_alloc_coherent\n");
+ return -ENOMEM;
+ }
+
+ error = devm_add_action_or_reset(dev, rpi_ts_dma_cleanup, ts);
+ if (error) {
+ dev_err(dev, "failed to devm_add_action_or_reset, %d\n", error);
+ return error;
+ }
+
+
+ touchbuf = (u32)ts->fw_regs_phys;
+ error = rpi_firmware_property(fw, RPI_FIRMWARE_FRAMEBUFFER_SET_TOUCHBUF,
+ &touchbuf, sizeof(touchbuf));
+
+ if (error || touchbuf != 0) {
+ dev_warn(dev, "Failed to set touchbuf, %d\n", error);
+ return error;
+ }
+
+ poll_dev = devm_input_allocate_polled_device(dev);
+ if (!poll_dev) {
+ dev_err(dev, "Failed to allocate input device\n");
+ return -ENOMEM;
+ }
+ ts->poll_dev = poll_dev;
+ input = poll_dev->input;
+
+ input->name = "raspberrypi-ts";
+ input->id.bustype = BUS_HOST;
+ poll_dev->poll_interval = RPI_TS_POLL_INTERVAL;
+ poll_dev->poll = rpi_ts_poll;
+ poll_dev->private = ts;
+
+ input_set_abs_params(input, ABS_MT_POSITION_X, 0,
+ RPI_TS_DEFAULT_WIDTH, 0, 0);
+ input_set_abs_params(input, ABS_MT_POSITION_Y, 0,
+ RPI_TS_DEFAULT_HEIGHT, 0, 0);
+ touchscreen_parse_properties(input, true, &ts->prop);
+
+ error = input_mt_init_slots(input, RPI_TS_MAX_SUPPORTED_POINTS,
+ INPUT_MT_DIRECT);
+ if (error) {
+ dev_err(dev, "could not init mt slots, %d\n", error);
+ return error;
+ }
+
+ error = input_register_polled_device(poll_dev);
+ if (error) {
+ dev_err(dev, "could not register input device, %d\n", error);
+ return error;
+ }
+
+ return 0;
+}
+
+static const struct of_device_id rpi_ts_match[] = {
+ { .compatible = "raspberrypi,firmware-ts", },
+ {},
+};
+MODULE_DEVICE_TABLE(of, rpi_ts_match);
+
+static struct platform_driver rpi_ts_driver = {
+ .driver = {
+ .name = "raspberrypi-ts",
+ .of_match_table = rpi_ts_match,
+ },
+ .probe = rpi_ts_probe,
+};
+module_platform_driver(rpi_ts_driver);
+
+MODULE_AUTHOR("Gordon Hollingworth");
+MODULE_AUTHOR("Nicolas Saenz Julienne <nsaenzjulienne@suse.de>");
+MODULE_DESCRIPTION("Raspberry Pi firmware based touchscreen driver");
+MODULE_LICENSE("GPL v2");
diff --git a/include/dt-bindings/clock/marvell,mmp2.h b/include/dt-bindings/clock/marvell,mmp2.h
index 228a5e2..7b24fc7 100644
--- a/include/dt-bindings/clock/marvell,mmp2.h
+++ b/include/dt-bindings/clock/marvell,mmp2.h
@@ -71,6 +71,7 @@
#define MMP2_CLK_CCIC1_MIX 117
#define MMP2_CLK_CCIC1_PHY 118
#define MMP2_CLK_CCIC1_SPHY 119
+#define MMP2_CLK_SP 120
#define MMP2_NR_CLKS 200
#endif
diff --git a/include/linux/platform_data/ad7879.h b/include/linux/platform_data/ad7879.h
deleted file mode 100644
index 6655cc8..0000000
--- a/include/linux/platform_data/ad7879.h
+++ /dev/null
@@ -1,42 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/* linux/platform_data/ad7879.h */
-
-/* Touchscreen characteristics vary between boards and models. The
- * platform_data for the device's "struct device" holds this information.
- *
- * It's OK if the min/max values are zero.
- */
-struct ad7879_platform_data {
- u16 model; /* 7879 */
- u16 x_plate_ohms;
- u16 x_min, x_max;
- u16 y_min, y_max;
- u16 pressure_min, pressure_max;
-
- bool swap_xy; /* swap x and y axes */
-
- /* [0..255] 0=OFF Starts at 1=550us and goes
- * all the way to 9.440ms in steps of 35us.
- */
- u8 pen_down_acc_interval;
- /* [0..15] Starts at 0=128us and goes all the
- * way to 4.096ms in steps of 128us.
- */
- u8 first_conversion_delay;
- /* [0..3] 0 = 2us, 1 = 4us, 2 = 8us, 3 = 16us */
- u8 acquisition_time;
- /* [0..3] Average X middle samples 0 = 2, 1 = 4, 2 = 8, 3 = 16 */
- u8 averaging;
- /* [0..3] Perform X measurements 0 = OFF,
- * 1 = 4, 2 = 8, 3 = 16 (median > averaging)
- */
- u8 median;
- /* 1 = AUX/VBAT/GPIO export GPIO to gpiolib
- * requires CONFIG_GPIOLIB
- */
- bool gpio_export;
- /* identifies the first GPIO number handled by this chip;
- * or, if negative, requests dynamic ID allocation.
- */
- s32 gpio_base;
-};
diff --git a/include/uapi/linux/input.h b/include/uapi/linux/input.h
index fb78f6f..ffab958 100644
--- a/include/uapi/linux/input.h
+++ b/include/uapi/linux/input.h
@@ -26,13 +26,17 @@
*/
struct input_event {
-#if (__BITS_PER_LONG != 32 || !defined(__USE_TIME_BITS64)) && !defined(__KERNEL)
+#if (__BITS_PER_LONG != 32 || !defined(__USE_TIME_BITS64)) && !defined(__KERNEL__)
struct timeval time;
#define input_event_sec time.tv_sec
#define input_event_usec time.tv_usec
#else
__kernel_ulong_t __sec;
+#ifdef CONFIG_SPARC64
+ unsigned int __usec;
+#else
__kernel_ulong_t __usec;
+#endif
#define input_event_sec __sec
#define input_event_usec __usec
#endif