korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-17 09:14:19 +08:00
Code Issues Packages Projects Releases Wiki Activity

ARM: ux500: switch MSP to using pinctrl for pins

Browse Source 
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@stericsson.com>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij 2012-05-07 10:34:16 +02:00
parent 09486cbb26
commit 08d98fe0e8
2 changed files with 57 additions and 23 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

62
arch/arm/mach-ux500/board-mop500-msp.c
View File

@ -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);

18
arch/arm/mach-ux500/board-mop500-pins.c
View File

@ -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"),