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authorRussell King <rmk+kernel@armlinux.org.uk>2017-09-09 16:34:41 +0100
committerRussell King <rmk+kernel@armlinux.org.uk>2017-09-09 16:34:41 +0100
commite558bdc21ae1f0db520eccd84015e17d8a589973 (patch)
treeb436123bd52f267b8c7f361618cded3e1e4421ea /arch/arm/mach-pxa
parent746a272e44141af24a02f6c9b0f65f4c4598ed42 (diff)
parent9a3dc3186fc3795e076a4122da9e0258651a9631 (diff)
Merge branches 'fixes' and 'misc' into for-linus
Diffstat (limited to 'arch/arm/mach-pxa')
-rw-r--r--arch/arm/mach-pxa/balloon3.c2
-rw-r--r--arch/arm/mach-pxa/include/mach/magician.h1
-rw-r--r--arch/arm/mach-pxa/littleton.c2
-rw-r--r--arch/arm/mach-pxa/magician.c84
-rw-r--r--arch/arm/mach-pxa/pm.c4
-rw-r--r--arch/arm/mach-pxa/pxa3xx-ulpi.c6
-rw-r--r--arch/arm/mach-pxa/stargate2.c2
7 files changed, 90 insertions, 11 deletions
diff --git a/arch/arm/mach-pxa/balloon3.c b/arch/arm/mach-pxa/balloon3.c
index d452a49c0396..1467c1d1e541 100644
--- a/arch/arm/mach-pxa/balloon3.c
+++ b/arch/arm/mach-pxa/balloon3.c
@@ -27,7 +27,7 @@
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/types.h>
-#include <linux/i2c/pcf857x.h>
+#include <linux/platform_data/pcf857x.h>
#include <linux/i2c/pxa-i2c.h>
#include <linux/mtd/nand.h>
#include <linux/mtd/physmap.h>
diff --git a/arch/arm/mach-pxa/include/mach/magician.h b/arch/arm/mach-pxa/include/mach/magician.h
index 5f6b850ebe33..c48b54d0f331 100644
--- a/arch/arm/mach-pxa/include/mach/magician.h
+++ b/arch/arm/mach-pxa/include/mach/magician.h
@@ -24,6 +24,7 @@
#define GPIO10_MAGICIAN_GSM_IRQ 10
#define GPIO11_MAGICIAN_GSM_OUT1 11
#define GPIO13_MAGICIAN_CPLD_IRQ 13
+#define GPIO14_MAGICIAN_TSC2046_CS 14
#define GPIO18_MAGICIAN_UNKNOWN 18
#define GPIO22_MAGICIAN_VIBRA_EN 22
#define GPIO26_MAGICIAN_GSM_POWER 26
diff --git a/arch/arm/mach-pxa/littleton.c b/arch/arm/mach-pxa/littleton.c
index 051c554776a6..fae38fdc8d8e 100644
--- a/arch/arm/mach-pxa/littleton.c
+++ b/arch/arm/mach-pxa/littleton.c
@@ -27,7 +27,7 @@
#include <linux/i2c.h>
#include <linux/leds.h>
#include <linux/mfd/da903x.h>
-#include <linux/i2c/max732x.h>
+#include <linux/platform_data/max732x.h>
#include <linux/i2c/pxa-i2c.h>
#include <asm/types.h>
diff --git a/arch/arm/mach-pxa/magician.c b/arch/arm/mach-pxa/magician.c
index b413e36506af..7f3566c93733 100644
--- a/arch/arm/mach-pxa/magician.c
+++ b/arch/arm/mach-pxa/magician.c
@@ -54,6 +54,10 @@
#include "devices.h"
#include "generic.h"
+#include <linux/spi/spi.h>
+#include <linux/spi/pxa2xx_spi.h>
+#include <linux/spi/ads7846.h>
+
static unsigned long magician_pin_config[] __initdata = {
/* SDRAM and Static Memory I/O Signals */
@@ -85,7 +89,7 @@ static unsigned long magician_pin_config[] __initdata = {
/* SSP 2 TSC2046 touchscreen */
GPIO19_SSP2_SCLK,
- GPIO14_SSP2_SFRM,
+ MFP_CFG_OUT(GPIO14, AF0, DRIVE_HIGH), /* frame as GPIO */
GPIO89_SSP2_TXD,
GPIO88_SSP2_RXD,
@@ -675,6 +679,37 @@ static struct platform_device bq24022 = {
};
/*
+ * fixed regulator for ads7846
+ */
+
+static struct regulator_consumer_supply ads7846_supply =
+ REGULATOR_SUPPLY("vcc", "spi2.0");
+
+static struct regulator_init_data vads7846_regulator = {
+ .constraints = {
+ .valid_ops_mask = REGULATOR_CHANGE_STATUS,
+ },
+ .num_consumer_supplies = 1,
+ .consumer_supplies = &ads7846_supply,
+};
+
+static struct fixed_voltage_config vads7846 = {
+ .supply_name = "vads7846",
+ .microvolts = 3300000, /* probably */
+ .gpio = -EINVAL,
+ .startup_delay = 0,
+ .init_data = &vads7846_regulator,
+};
+
+static struct platform_device vads7846_device = {
+ .name = "reg-fixed-voltage",
+ .id = -1,
+ .dev = {
+ .platform_data = &vads7846,
+ },
+};
+
+/*
* Vcore regulator MAX1587A
*/
@@ -852,6 +887,49 @@ static struct i2c_pxa_platform_data magician_i2c_power_info = {
};
/*
+ * Touchscreen
+ */
+
+static struct ads7846_platform_data ads7846_pdata = {
+ .model = 7846,
+ .x_plate_ohms = 317,
+ .y_plate_ohms = 500,
+ .pressure_max = 1023, /* with x plate ohms it will overflow 255 */
+ .debounce_max = 3, /* first readout is always bad */
+ .debounce_tol = 30,
+ .debounce_rep = 0,
+ .gpio_pendown = GPIO115_MAGICIAN_nPEN_IRQ,
+ .keep_vref_on = 1,
+ .wakeup = true,
+ .vref_delay_usecs = 100,
+ .penirq_recheck_delay_usecs = 100,
+};
+
+struct pxa2xx_spi_chip tsc2046_chip_info = {
+ .tx_threshold = 1,
+ .rx_threshold = 2,
+ .timeout = 64,
+ /* NOTICE must be GPIO, incompatibility with hw PXA SPI framing */
+ .gpio_cs = GPIO14_MAGICIAN_TSC2046_CS,
+};
+
+static struct pxa2xx_spi_master magician_spi_info = {
+ .num_chipselect = 1,
+ .enable_dma = 1,
+};
+
+static struct spi_board_info ads7846_spi_board_info[] __initdata = {
+ {
+ .modalias = "ads7846",
+ .bus_num = 2,
+ .max_speed_hz = 2500000,
+ .platform_data = &ads7846_pdata,
+ .controller_data = &tsc2046_chip_info,
+ .irq = PXA_GPIO_TO_IRQ(GPIO115_MAGICIAN_nPEN_IRQ),
+ },
+};
+
+/*
* Platform devices
*/
@@ -865,6 +943,7 @@ static struct platform_device *devices[] __initdata = {
&power_supply,
&strataflash,
&leds_gpio,
+ &vads7846_device,
};
static struct gpio magician_global_gpios[] = {
@@ -922,6 +1001,9 @@ static void __init magician_init(void)
} else
pr_err("LCD detection: CPLD mapping failed\n");
+ pxa2xx_set_spi_info(2, &magician_spi_info);
+ spi_register_board_info(ARRAY_AND_SIZE(ads7846_spi_board_info));
+
regulator_register_always_on(0, "power", pwm_backlight_supply,
ARRAY_SIZE(pwm_backlight_supply), 5000000);
diff --git a/arch/arm/mach-pxa/pm.c b/arch/arm/mach-pxa/pm.c
index e7450fb49d24..f2237f471750 100644
--- a/arch/arm/mach-pxa/pm.c
+++ b/arch/arm/mach-pxa/pm.c
@@ -107,10 +107,8 @@ static int __init pxa_pm_init(void)
sleep_save = kmalloc_array(pxa_cpu_pm_fns->save_count,
sizeof(*sleep_save),
GFP_KERNEL);
- if (!sleep_save) {
- printk(KERN_ERR "failed to alloc memory for pm save\n");
+ if (!sleep_save)
return -ENOMEM;
- }
suspend_set_ops(&pxa_pm_ops);
return 0;
diff --git a/arch/arm/mach-pxa/pxa3xx-ulpi.c b/arch/arm/mach-pxa/pxa3xx-ulpi.c
index eba595fac8ca..60cb59a7ebd1 100644
--- a/arch/arm/mach-pxa/pxa3xx-ulpi.c
+++ b/arch/arm/mach-pxa/pxa3xx-ulpi.c
@@ -286,11 +286,9 @@ static int pxa3xx_u2d_probe(struct platform_device *pdev)
struct resource *r;
int err;
- u2d = kzalloc(sizeof(struct pxa3xx_u2d_ulpi), GFP_KERNEL);
- if (!u2d) {
- dev_err(&pdev->dev, "failed to allocate memory\n");
+ u2d = kzalloc(sizeof(*u2d), GFP_KERNEL);
+ if (!u2d)
return -ENOMEM;
- }
u2d->clk = clk_get(&pdev->dev, NULL);
if (IS_ERR(u2d->clk)) {
diff --git a/arch/arm/mach-pxa/stargate2.c b/arch/arm/mach-pxa/stargate2.c
index 7b6610e9dae4..2d45d18b1a5e 100644
--- a/arch/arm/mach-pxa/stargate2.c
+++ b/arch/arm/mach-pxa/stargate2.c
@@ -26,7 +26,7 @@
#include <linux/mtd/partitions.h>
#include <linux/i2c/pxa-i2c.h>
-#include <linux/i2c/pcf857x.h>
+#include <linux/platform_data/pcf857x.h>
#include <linux/platform_data/at24.h>
#include <linux/smc91x.h>
#include <linux/gpio.h>