[PATCH 12/12] ARM: ux500: switch MSP to using pinctrl for pins
Linus Walleij
linus.walleij at stericsson.com
Tue May 8 05:45:47 EDT 2012
From: Linus Walleij <linus.walleij at linaro.org>
The MSP platform data callbacks use the old custom callbacks to
set the state of the pins, switch over to using pinctrl.
Cc: Ola Lilja <ola.o.lilja at stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij at linaro.org>
---
arch/arm/mach-ux500/board-mop500-msp.c | 62 ++++++++++++++++++++-----------
arch/arm/mach-ux500/board-mop500-pins.c | 18 ++++++++-
2 files changed, 57 insertions(+), 23 deletions(-)
diff --git a/arch/arm/mach-ux500/board-mop500-msp.c b/arch/arm/mach-ux500/board-mop500-msp.c
index aacaf80..9960480 100644
--- a/arch/arm/mach-ux500/board-mop500-msp.c
+++ b/arch/arm/mach-ux500/board-mop500-msp.c
@@ -7,17 +7,18 @@
#include <linux/platform_device.h>
#include <linux/init.h>
#include <linux/gpio.h>
-#include <plat/gpio-nomadik.h>
+#include <linux/pinctrl/consumer.h>
+#include <plat/gpio-nomadik.h>
#include <plat/pincfg.h>
#include <plat/ste_dma40.h>
#include <mach/devices.h>
-#include <ste-dma40-db8500.h>
#include <mach/hardware.h>
#include <mach/irqs.h>
#include <mach/msp.h>
+#include "ste-dma40-db8500.h"
#include "board-mop500.h"
#include "devices-db8500.h"
#include "pins-db8500.h"
@@ -28,19 +29,10 @@ static DEFINE_SPINLOCK(msp_rxtx_lock);
/* Reference Count */
static int msp_rxtx_ref;
-static pin_cfg_t mop500_msp1_pins_init[] = {
- GPIO33_MSP1_TXD | PIN_OUTPUT_LOW | PIN_SLPM_WAKEUP_DISABLE,
- GPIO34_MSP1_TFS | PIN_INPUT_NOPULL | PIN_SLPM_WAKEUP_DISABLE,
- GPIO35_MSP1_TCK | PIN_INPUT_NOPULL | PIN_SLPM_WAKEUP_DISABLE,
- GPIO36_MSP1_RXD | PIN_INPUT_NOPULL | PIN_SLPM_WAKEUP_DISABLE,
-};
-
-static pin_cfg_t mop500_msp1_pins_exit[] = {
- GPIO33_MSP1_TXD | PIN_OUTPUT_LOW | PIN_SLPM_WAKEUP_ENABLE,
- GPIO34_MSP1_TFS | PIN_INPUT_NOPULL | PIN_SLPM_WAKEUP_ENABLE,
- GPIO35_MSP1_TCK | PIN_INPUT_NOPULL | PIN_SLPM_WAKEUP_ENABLE,
- GPIO36_MSP1_RXD | PIN_INPUT_NOPULL | PIN_SLPM_WAKEUP_ENABLE,
-};
+/* Pin modes */
+struct pinctrl *msp1_p;
+struct pinctrl_state *msp1_def;
+struct pinctrl_state *msp1_sleep;
int msp13_i2s_init(void)
{
@@ -48,9 +40,11 @@ int msp13_i2s_init(void)
unsigned long flags;
spin_lock_irqsave(&msp_rxtx_lock, flags);
- if (msp_rxtx_ref == 0)
- retval = nmk_config_pins(
- ARRAY_AND_SIZE(mop500_msp1_pins_init));
+ if (msp_rxtx_ref == 0 && !(IS_ERR(msp1_p) || IS_ERR(msp1_def))) {
+ retval = pinctrl_select_state(msp1_p, msp1_def);
+ if (retval)
+ pr_err("could not set MSP1 defstate\n");
+ }
if (!retval)
msp_rxtx_ref++;
spin_unlock_irqrestore(&msp_rxtx_lock, flags);
@@ -66,9 +60,11 @@ int msp13_i2s_exit(void)
spin_lock_irqsave(&msp_rxtx_lock, flags);
WARN_ON(!msp_rxtx_ref);
msp_rxtx_ref--;
- if (msp_rxtx_ref == 0)
- retval = nmk_config_pins_sleep(
- ARRAY_AND_SIZE(mop500_msp1_pins_exit));
+ if (msp_rxtx_ref == 0 && !(IS_ERR(msp1_p) || IS_ERR(msp1_sleep))) {
+ retval = pinctrl_select_state(msp1_p, msp1_sleep);
+ if (retval)
+ pr_err("could not set MSP1 sleepstate\n");
+ }
spin_unlock_irqrestore(&msp_rxtx_lock, flags);
return retval;
@@ -229,19 +225,41 @@ static struct msp_i2s_platform_data msp3_platform_data = {
int mop500_msp_init(struct device *parent)
{
+ struct platform_device *msp1;
+
pr_info("%s: Register platform-device 'snd-soc-u8500'.\n", __func__);
platform_device_register(&snd_soc_u8500);
pr_info("Initialize MSP I2S-devices.\n");
db8500_add_msp_i2s(parent, 0, U8500_MSP0_BASE, IRQ_DB8500_MSP0,
&msp0_platform_data);
- db8500_add_msp_i2s(parent, 1, U8500_MSP1_BASE, IRQ_DB8500_MSP1,
+ msp1 = db8500_add_msp_i2s(parent, 1, U8500_MSP1_BASE, IRQ_DB8500_MSP1,
&msp1_platform_data);
db8500_add_msp_i2s(parent, 2, U8500_MSP2_BASE, IRQ_DB8500_MSP2,
&msp2_platform_data);
db8500_add_msp_i2s(parent, 3, U8500_MSP3_BASE, IRQ_DB8500_MSP1,
&msp3_platform_data);
+ /* Get the pinctrl handle for MSP1 */
+ if (msp1) {
+ msp1_p = pinctrl_get(&msp1->dev);
+ if (IS_ERR(msp1_p))
+ dev_err(&msp1->dev, "could not get MSP1 pinctrl\n");
+ else {
+ msp1_def = pinctrl_lookup_state(msp1_p,
+ PINCTRL_STATE_DEFAULT);
+ if (IS_ERR(msp1_def)) {
+ dev_err(&msp1->dev,
+ "could not get MSP1 defstate\n");
+ }
+ msp1_sleep = pinctrl_lookup_state(msp1_p,
+ PINCTRL_STATE_SLEEP);
+ if (IS_ERR(msp1_sleep))
+ dev_err(&msp1->dev,
+ "could not get MSP1 idlestate\n");
+ }
+ }
+
pr_info("%s: Register platform-device 'ux500-pcm'\n", __func__);
platform_device_register(&ux500_pcm);
diff --git a/arch/arm/mach-ux500/board-mop500-pins.c b/arch/arm/mach-ux500/board-mop500-pins.c
index dccd29d..32fd992 100644
--- a/arch/arm/mach-ux500/board-mop500-pins.c
+++ b/arch/arm/mach-ux500/board-mop500-pins.c
@@ -32,12 +32,14 @@ static enum custom_pin_cfg_t pinsfor;
BIAS(pd, PIN_PULL_DOWN);
BIAS(slpm_gpio_nopull, PIN_SLPM_GPIO|PIN_SLPM_INPUT_NOPULL);
BIAS(in_nopull, PIN_INPUT_NOPULL);
+BIAS(in_nopull_sleep_nowkup, PIN_INPUT_NOPULL|PIN_SLPM_WAKEUP_DISABLE);
BIAS(in_pu, PIN_INPUT_PULLUP);
BIAS(in_pd, PIN_INPUT_PULLDOWN);
BIAS(in_pd_slpm_in_pu, PIN_INPUT_PULLDOWN|PIN_SLPM_INPUT_PULLUP);
BIAS(in_pu_slpm_out_lo, PIN_INPUT_PULLUP|PIN_SLPM_OUTPUT_LOW);
BIAS(out_hi, PIN_OUTPUT_HIGH);
BIAS(out_lo, PIN_OUTPUT_LOW);
+BIAS(out_lo_sleep_nowkup, PIN_OUTPUT_LOW|PIN_SLPM_WAKEUP_DISABLE);
/* These also force them into GPIO mode */
BIAS(gpio_in_pu, PIN_INPUT_PULLUP|PIN_GPIOMODE_ENABLED);
BIAS(gpio_in_pd, PIN_INPUT_PULLDOWN|PIN_GPIOMODE_ENABLED);
@@ -47,7 +49,9 @@ BIAS(gpio_out_hi, PIN_OUTPUT_HIGH|PIN_GPIOMODE_ENABLED);
BIAS(gpio_out_lo, PIN_OUTPUT_LOW|PIN_GPIOMODE_ENABLED);
/* Sleep modes */
BIAS(sleep_in_wkup_pdis, PIN_SLPM_DIR_INPUT|PIN_SLPM_WAKEUP_ENABLE|PIN_SLPM_PDIS_DISABLED);
+BIAS(sleep_in_nopull_wkup, PIN_INPUT_NOPULL|PIN_SLPM_WAKEUP_ENABLE);
BIAS(sleep_out_hi_wkup_pdis, PIN_SLPM_OUTPUT_HIGH|PIN_SLPM_WAKEUP_ENABLE|PIN_SLPM_PDIS_DISABLED);
+BIAS(sleep_out_lo_wkup, PIN_OUTPUT_LOW|PIN_SLPM_WAKEUP_ENABLE);
BIAS(sleep_out_wkup_pdis, PIN_SLPM_DIR_OUTPUT|PIN_SLPM_WAKEUP_ENABLE|PIN_SLPM_PDIS_DISABLED);
/* We use these to define hog settings that are always done on boot */
@@ -129,11 +133,23 @@ static struct pinctrl_map __initdata mop500_family_pinmap[] = {
DB8500_PIN("GPIO1_AJ3", out_hi, "uart0"), /* RTS */
DB8500_PIN("GPIO2_AH4", in_pu, "uart0"), /* RXD */
DB8500_PIN("GPIO3_AH3", out_hi, "uart0"), /* TXD */
- /* Sleep state for UART0 */
+ /* UART0 sleep state */
DB8500_PIN_SLEEP("GPIO0_AJ5", sleep_in_wkup_pdis, "uart0"),
DB8500_PIN_SLEEP("GPIO1_AJ3", sleep_out_hi_wkup_pdis, "uart0"),
DB8500_PIN_SLEEP("GPIO2_AH4", sleep_in_wkup_pdis, "uart0"),
DB8500_PIN_SLEEP("GPIO3_AH3", sleep_out_wkup_pdis, "uart0"),
+ /* MSP1 for ALSA codec */
+ DB8500_MUX("msp1txrx_a_1", "msp1", "ux500-msp-i2s.1"),
+ DB8500_MUX("msp1_a_1", "msp1", "ux500-msp-i2s.1"),
+ DB8500_PIN("GPIO33_AF2", out_lo_sleep_nowkup, "ux500-msp-i2s.1"),
+ DB8500_PIN("GPIO34_AE1", in_nopull_sleep_nowkup, "ux500-msp-i2s.1"),
+ DB8500_PIN("GPIO35_AE2", in_nopull_sleep_nowkup, "ux500-msp-i2s.1"),
+ DB8500_PIN("GPIO36_AG2", in_nopull_sleep_nowkup, "ux500-msp-i2s.1"),
+ /* MSP1 sleep state */
+ DB8500_PIN_SLEEP("GPIO33_AF2", sleep_out_lo_wkup, "ux500-msp-i2s.1"),
+ DB8500_PIN_SLEEP("GPIO34_AE1", sleep_in_nopull_wkup, "ux500-msp-i2s.1"),
+ DB8500_PIN_SLEEP("GPIO35_AE2", sleep_in_nopull_wkup, "ux500-msp-i2s.1"),
+ DB8500_PIN_SLEEP("GPIO36_AG2", sleep_in_nopull_wkup, "ux500-msp-i2s.1"),
/* Mux in LCD data lines 8 thru 11 and LCDA CLK for MCDE TVOUT */
DB8500_MUX("lcd_d8_d11_a_1", "lcd", "mcde-tvout"),
DB8500_MUX("lcdaclk_b_1", "lcda", "mcde-tvout"),
--
1.7.9.2
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