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Date: Tue, 28 May 2013 11:16:54 +0300
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: sfi-devel@...plefirmware.org, Len Brown <lenb@...nel.org>,
linux-kernel@...r.kernel.org
Cc: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
"H. Peter Anvin" <hpa@...or.com>, x86@...nel.org
Subject: [PATCH, resend 3/3] x86: mrst: move to generic SFI GPIO API
Let's use the common SFI helpers for GPIO API.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Acked-by: Len Brown <len.brown@...el.com>
Cc: H. Peter Anvin <hpa@...or.com>
Cc: x86@...nel.org
---
arch/x86/platform/mrst/mrst.c | 94 ++++++++++---------------------------------
1 file changed, 22 insertions(+), 72 deletions(-)
diff --git a/arch/x86/platform/mrst/mrst.c b/arch/x86/platform/mrst/mrst.c
index a0a0a43..9ba13d8 100644
--- a/arch/x86/platform/mrst/mrst.c
+++ b/arch/x86/platform/mrst/mrst.c
@@ -17,6 +17,7 @@
#include <linux/interrupt.h>
#include <linux/scatterlist.h>
#include <linux/sfi.h>
+#include <linux/sfi_gpio.h>
#include <linux/intel_pmic_gpio.h>
#include <linux/spi/spi.h>
#include <linux/i2c.h>
@@ -28,7 +29,6 @@
#include <linux/module.h>
#include <linux/notifier.h>
#include <linux/mfd/intel_msic.h>
-#include <linux/gpio.h>
#include <linux/i2c/tc35876x.h>
#include <asm/setup.h>
@@ -219,7 +219,7 @@ static unsigned long __init mrst_calibrate_tsc(void)
lapic_timer_frequency = fsb * 1000 / HZ;
/* mark tsc clocksource as reliable */
set_cpu_cap(&boot_cpu_data, X86_FEATURE_TSC_RELIABLE);
-
+
if (fast_calibrate)
return fast_calibrate;
@@ -338,55 +338,6 @@ static inline int __init setup_x86_mrst_timer(char *arg)
__setup("x86_mrst_timer=", setup_x86_mrst_timer);
/*
- * Parsing GPIO table first, since the DEVS table will need this table
- * to map the pin name to the actual pin.
- */
-static struct sfi_gpio_table_entry *gpio_table;
-static int gpio_num_entry;
-
-static int __init sfi_parse_gpio(struct sfi_table_header *table)
-{
- struct sfi_table_simple *sb;
- struct sfi_gpio_table_entry *pentry;
- int num, i;
-
- if (gpio_table)
- return 0;
- sb = (struct sfi_table_simple *)table;
- num = SFI_GET_NUM_ENTRIES(sb, struct sfi_gpio_table_entry);
- pentry = (struct sfi_gpio_table_entry *)sb->pentry;
-
- gpio_table = kmalloc(num * sizeof(*pentry), GFP_KERNEL);
- if (!gpio_table)
- return -1;
- memcpy(gpio_table, pentry, num * sizeof(*pentry));
- gpio_num_entry = num;
-
- pr_debug("GPIO pin info:\n");
- for (i = 0; i < num; i++, pentry++)
- pr_debug("info[%2d]: controller = %16.16s, pin_name = %16.16s,"
- " pin = %d\n", i,
- pentry->controller_name,
- pentry->pin_name,
- pentry->pin_no);
- return 0;
-}
-
-static int get_gpio_by_name(const char *name)
-{
- struct sfi_gpio_table_entry *pentry = gpio_table;
- int i;
-
- if (!pentry)
- return -1;
- for (i = 0; i < gpio_num_entry; i++, pentry++) {
- if (!strncmp(name, pentry->pin_name, SFI_NAME_LEN))
- return pentry->pin_no;
- }
- return -1;
-}
-
-/*
* Here defines the array of devices platform data that IAFW would export
* through SFI "DEVS" table, we use name and type to match the device and
* its platform data.
@@ -404,7 +355,7 @@ struct devs_id {
static void __init *pmic_gpio_platform_data(void *info)
{
static struct intel_pmic_gpio_platform_data pmic_gpio_pdata;
- int gpio_base = get_gpio_by_name("pmic_gpio_base");
+ int gpio_base = sfi_get_gpio_by_name("pmic_gpio_base");
if (gpio_base == -1)
gpio_base = 64;
@@ -418,7 +369,7 @@ static void __init *pmic_gpio_platform_data(void *info)
static void __init *max3111_platform_data(void *info)
{
struct spi_board_info *spi_info = info;
- int intr = get_gpio_by_name("max3111_int");
+ int intr = sfi_get_gpio_by_name("max3111_int");
spi_info->mode = SPI_MODE_0;
if (intr == -1)
@@ -456,8 +407,8 @@ static void __init *max7315_platform_data(void *info)
strcpy(intr_pin_name, "max7315_int");
}
- gpio_base = get_gpio_by_name(base_pin_name);
- intr = get_gpio_by_name(intr_pin_name);
+ gpio_base = sfi_get_gpio_by_name(base_pin_name);
+ intr = sfi_get_gpio_by_name(intr_pin_name);
if (gpio_base == -1)
return NULL;
@@ -484,8 +435,8 @@ static void *tca6416_platform_data(void *info)
strcpy(base_pin_name, "tca6416_base");
strcpy(intr_pin_name, "tca6416_int");
- gpio_base = get_gpio_by_name(base_pin_name);
- intr = get_gpio_by_name(intr_pin_name);
+ gpio_base = sfi_get_gpio_by_name(base_pin_name);
+ intr = sfi_get_gpio_by_name(intr_pin_name);
if (gpio_base == -1)
return NULL;
@@ -503,7 +454,7 @@ static void *tca6416_platform_data(void *info)
static void *mpu3050_platform_data(void *info)
{
struct i2c_board_info *i2c_info = info;
- int intr = get_gpio_by_name("mpu3050_int");
+ int intr = sfi_get_gpio_by_name("mpu3050_int");
if (intr == -1)
return NULL;
@@ -516,8 +467,8 @@ static void __init *emc1403_platform_data(void *info)
{
static short intr2nd_pdata;
struct i2c_board_info *i2c_info = info;
- int intr = get_gpio_by_name("thermal_int");
- int intr2nd = get_gpio_by_name("thermal_alert");
+ int intr = sfi_get_gpio_by_name("thermal_int");
+ int intr2nd = sfi_get_gpio_by_name("thermal_alert");
if (intr == -1 || intr2nd == -1)
return NULL;
@@ -532,8 +483,8 @@ static void __init *lis331dl_platform_data(void *info)
{
static short intr2nd_pdata;
struct i2c_board_info *i2c_info = info;
- int intr = get_gpio_by_name("accel_int");
- int intr2nd = get_gpio_by_name("accel_2");
+ int intr = sfi_get_gpio_by_name("accel_int");
+ int intr2nd = sfi_get_gpio_by_name("accel_2");
if (intr == -1 || intr2nd == -1)
return NULL;
@@ -628,7 +579,7 @@ static void *msic_battery_platform_data(void *info)
static void *msic_gpio_platform_data(void *info)
{
static struct intel_msic_gpio_pdata pdata;
- int gpio = get_gpio_by_name("msic_gpio_base");
+ int gpio = sfi_get_gpio_by_name("msic_gpio_base");
if (gpio < 0)
return NULL;
@@ -660,7 +611,7 @@ static void *msic_power_btn_platform_data(void *info)
static void *msic_ocd_platform_data(void *info)
{
static struct intel_msic_ocd_pdata pdata;
- int gpio = get_gpio_by_name("ocd_gpio");
+ int gpio = sfi_get_gpio_by_name("ocd_gpio");
if (gpio < 0)
return NULL;
@@ -679,14 +630,14 @@ static void *msic_thermal_platform_data(void *info)
/* tc35876x DSI-LVDS bridge chip and panel platform data */
static void *tc35876x_platform_data(void *data)
{
- static struct tc35876x_platform_data pdata;
+ static struct tc35876x_platform_data pdata;
- /* gpio pins set to -1 will not be used by the driver */
- pdata.gpio_bridge_reset = get_gpio_by_name("LCMB_RXEN");
- pdata.gpio_panel_bl_en = get_gpio_by_name("6S6P_BL_EN");
- pdata.gpio_panel_vadd = get_gpio_by_name("EN_VREG_LCD_V3P3");
+ /* gpio pins set to -1 will not be used by the driver */
+ pdata.gpio_bridge_reset = sfi_get_gpio_by_name("LCMB_RXEN");
+ pdata.gpio_panel_bl_en = sfi_get_gpio_by_name("6S6P_BL_EN");
+ pdata.gpio_panel_vadd = sfi_get_gpio_by_name("EN_VREG_LCD_V3P3");
- return &pdata;
+ return &pdata;
}
static const struct devs_id __initconst device_ids[] = {
@@ -984,7 +935,6 @@ static int __init sfi_parse_devs(struct sfi_table_header *table)
static int __init mrst_platform_init(void)
{
- sfi_table_parse(SFI_SIG_GPIO, NULL, NULL, sfi_parse_gpio);
sfi_table_parse(SFI_SIG_DEVS, NULL, NULL, sfi_parse_devs);
return 0;
}
@@ -1033,7 +983,7 @@ static int __init pb_keys_init(void)
num = sizeof(gpio_button) / sizeof(struct gpio_keys_button);
for (i = 0; i < num; i++) {
- gb[i].gpio = get_gpio_by_name(gb[i].desc);
+ gb[i].gpio = sfi_get_gpio_by_name(gb[i].desc);
pr_debug("info[%2d]: name = %s, gpio = %d\n", i, gb[i].desc, gb[i].gpio);
if (gb[i].gpio == -1)
continue;
--
1.8.2.rc0.22.gb3600c3
--
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