This patch implements GPIO as a platform device. Also it
implements OMAP2PLUS specific GPIO as HWMOD FW adapted device.
GPIO APIs are used in machine_init functions. Hence it is
required to complete GPIO probe before machine_init. Therefore
GPIO device register and driver register are implemented as
postcore_initcalls.
Inorder to convert GPIO as platform device, modifications are
required in clockxxxx_data.c files so that device names can be
used to obtain clock instead of getting clocks by name/NULL ptr.
GPIO driver uses runtime APIs.Clock FW APIs are used to enable
iclk and fclk when CONFIG_PM_RUNTIME is not defined.
omap_gpio_init() does nothing now and this function would be
removed in the next patch as it's usage is spread across most of
the board files.
Signed-off-by: Charulatha V <charu@xxxxxx>
Signed-off-by: Rajendra Nayak <rnayak@xxxxxx>
---
arch/arm/mach-omap1/Makefile | 6 +
arch/arm/mach-omap1/clock_data.c | 2 +-
arch/arm/mach-omap2/Makefile | 2 +-
arch/arm/mach-omap2/clock2420_data.c | 10 +-
arch/arm/mach-omap2/clock2430_data.c | 14 +-
arch/arm/mach-omap2/clock3xxx_data.c | 24 +-
arch/arm/mach-omap2/clock44xx_data.c | 24 +-
arch/arm/plat-omap/gpio.c | 389 +++++++++++-----------------------
8 files changed, 178 insertions(+), 293 deletions(-)
diff --git a/arch/arm/mach-omap1/Makefile b/arch/arm/mach-omap1/Makefile
index b6a537c..dabd2be 100644
--- a/arch/arm/mach-omap1/Makefile
+++ b/arch/arm/mach-omap1/Makefile
@@ -45,6 +45,12 @@ ifeq ($(CONFIG_ARCH_OMAP15XX),y)
obj-$(CONFIG_MACH_OMAP_INNOVATOR) += fpga.o
endif
+# GPIO
+obj-$(CONFIG_ARCH_OMAP730) += gpio7xx.o
+obj-$(CONFIG_ARCH_OMAP850) += gpio7xx.o
+obj-$(CONFIG_ARCH_OMAP15XX) += gpio15xx.o
+obj-$(CONFIG_ARCH_OMAP16XX) += gpio16xx.o
+
# LEDs support
led-$(CONFIG_MACH_OMAP_H2) += leds-h2p2-debug.o
led-$(CONFIG_MACH_OMAP_H3) += leds-h2p2-debug.o
diff --git a/arch/arm/mach-omap1/clock_data.c b/arch/arm/mach-omap1/clock_data.c
index aa8558a..9bc2aa1 100644
--- a/arch/arm/mach-omap1/clock_data.c
+++ b/arch/arm/mach-omap1/clock_data.c
@@ -589,7 +589,7 @@ static struct omap_clk omap_clks[] = {
CLK(NULL, "ck_sossi", &sossi_ck, CK_16XX),
CLK(NULL, "arm_ck", &arm_ck, CK_16XX | CK_1510 | CK_310),
CLK(NULL, "armper_ck", &armper_ck.clk, CK_16XX | CK_1510 | CK_310),
- CLK(NULL, "arm_gpio_ck", &arm_gpio_ck, CK_1510 | CK_310),
+ CLK("omap-gpio.0", "arm_gpio_ck", &arm_gpio_ck, CK_1510 | CK_310),
CLK(NULL, "armxor_ck", &armxor_ck.clk, CK_16XX | CK_1510 | CK_310 | CK_7XX),
CLK(NULL, "armtim_ck", &armtim_ck.clk, CK_16XX | CK_1510 | CK_310),
CLK("omap_wdt", "fck", &armwdt_ck.clk, CK_16XX | CK_1510 | CK_310),
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index 58a0474..d2d63ca 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -3,7 +3,7 @@
#
# Common support
-obj-y := id.o io.o control.o mux.o devices.o serial.o gpmc.o timer-gp.o
+obj-y := id.o io.o control.o mux.o devices.o serial.o gpmc.o timer-gp.o gpio.o
omap-2-3-common = irq.o sdrc.o
hwmod-common = omap_hwmod.o \
diff --git a/arch/arm/mach-omap2/clock2420_data.c b/arch/arm/mach-omap2/clock2420_data.c
index d932b14..a693403 100644
--- a/arch/arm/mach-omap2/clock2420_data.c
+++ b/arch/arm/mach-omap2/clock2420_data.c
@@ -1802,8 +1802,14 @@ static struct omap_clk omap2420_clks[] = {
CLK(NULL, "uart2_fck", &uart2_fck, CK_242X),
CLK(NULL, "uart3_ick", &uart3_ick, CK_242X),
CLK(NULL, "uart3_fck", &uart3_fck, CK_242X),
- CLK(NULL, "gpios_ick", &gpios_ick, CK_242X),
- CLK(NULL, "gpios_fck", &gpios_fck, CK_242X),
+ CLK("omap-gpio.0", "ick", &gpios_ick, CK_242X),
+ CLK("omap-gpio.1", "ick", &gpios_ick, CK_242X),
+ CLK("omap-gpio.2", "ick", &gpios_ick, CK_242X),
+ CLK("omap-gpio.3", "ick", &gpios_ick, CK_242X),
+ CLK("omap-gpio.0", "fck", &gpios_fck, CK_242X),
+ CLK("omap-gpio.1", "fck", &gpios_fck, CK_242X),
+ CLK("omap-gpio.2", "fck", &gpios_fck, CK_242X),
+ CLK("omap-gpio.3", "fck", &gpios_fck, CK_242X),
CLK("omap_wdt", "ick", &mpu_wdt_ick, CK_242X),
CLK("omap_wdt", "fck", &mpu_wdt_fck, CK_242X),
CLK(NULL, "sync_32k_ick", &sync_32k_ick, CK_242X),
diff --git a/arch/arm/mach-omap2/clock2430_data.c b/arch/arm/mach-omap2/clock2430_data.c
index 0438b6e..56bbcbc 100644
--- a/arch/arm/mach-omap2/clock2430_data.c
+++ b/arch/arm/mach-omap2/clock2430_data.c
@@ -1896,8 +1896,14 @@ static struct omap_clk omap2430_clks[] = {
CLK(NULL, "uart2_fck", &uart2_fck, CK_243X),
CLK(NULL, "uart3_ick", &uart3_ick, CK_243X),
CLK(NULL, "uart3_fck", &uart3_fck, CK_243X),
- CLK(NULL, "gpios_ick", &gpios_ick, CK_243X),
- CLK(NULL, "gpios_fck", &gpios_fck, CK_243X),
+ CLK("omap-gpio.0", "ick", &gpios_ick, CK_243X),
+ CLK("omap-gpio.1", "ick", &gpios_ick, CK_243X),
+ CLK("omap-gpio.2", "ick", &gpios_ick, CK_243X),
+ CLK("omap-gpio.3", "ick", &gpios_ick, CK_243X),
+ CLK("omap-gpio.0", "fck", &gpios_fck, CK_243X),
+ CLK("omap-gpio.1", "fck", &gpios_fck, CK_243X),
+ CLK("omap-gpio.2", "fck", &gpios_fck, CK_243X),
+ CLK("omap-gpio.3", "fck", &gpios_fck, CK_243X),
CLK("omap_wdt", "ick", &mpu_wdt_ick, CK_243X),
CLK("omap_wdt", "fck", &mpu_wdt_fck, CK_243X),
CLK(NULL, "sync_32k_ick", &sync_32k_ick, CK_243X),
@@ -1934,8 +1940,8 @@ static struct omap_clk omap2430_clks[] = {
CLK("mmci-omap-hs.0", "fck", &mmchs1_fck, CK_243X),
CLK("mmci-omap-hs.1", "ick", &mmchs2_ick, CK_243X),
CLK("mmci-omap-hs.1", "fck", &mmchs2_fck, CK_243X),
- CLK(NULL, "gpio5_ick", &gpio5_ick, CK_243X),
- CLK(NULL, "gpio5_fck", &gpio5_fck, CK_243X),
+ CLK("omap-gpio.4", "ick", &gpio5_ick, CK_243X),
+ CLK("omap-gpio.4", "fck", &gpio5_fck, CK_243X),
CLK(NULL, "mdm_intc_ick", &mdm_intc_ick, CK_243X),
CLK("mmci-omap-hs.0", "mmchsdb_fck", &mmchsdb1_fck, CK_243X),
CLK("mmci-omap-hs.1", "mmchsdb_fck", &mmchsdb2_fck, CK_243X),
diff --git a/arch/arm/mach-omap2/clock3xxx_data.c b/arch/arm/mach-omap2/clock3xxx_data.c
index 9cba556..3962234 100644
--- a/arch/arm/mach-omap2/clock3xxx_data.c
+++ b/arch/arm/mach-omap2/clock3xxx_data.c
@@ -3407,13 +3407,13 @@ static struct omap_clk omap3xxx_clks[] = {
CLK(NULL, "usim_fck", &usim_fck, CK_3430ES2),
CLK(NULL, "gpt1_fck", &gpt1_fck, CK_3XXX),
CLK(NULL, "wkup_32k_fck", &wkup_32k_fck, CK_3XXX),
- CLK(NULL, "gpio1_dbck", &gpio1_dbck, CK_3XXX),
+ CLK("omap-gpio.0", "dbck", &gpio1_dbck, CK_3XXX),
CLK("omap_wdt", "fck", &wdt2_fck, CK_3XXX),
CLK(NULL, "wkup_l4_ick", &wkup_l4_ick, CK_343X),
CLK(NULL, "usim_ick", &usim_ick, CK_3430ES2),
CLK("omap_wdt", "ick", &wdt2_ick, CK_3XXX),
CLK(NULL, "wdt1_ick", &wdt1_ick, CK_3XXX),
- CLK(NULL, "gpio1_ick", &gpio1_ick, CK_3XXX),
+ CLK("omap-gpio.0", "ick", &gpio1_ick, CK_3XXX),
CLK(NULL, "omap_32ksync_ick", &omap_32ksync_ick, CK_3XXX),
CLK(NULL, "gpt12_ick", &gpt12_ick, CK_3XXX),
CLK(NULL, "gpt1_ick", &gpt1_ick, CK_3XXX),
@@ -3429,18 +3429,18 @@ static struct omap_clk omap3xxx_clks[] = {
CLK(NULL, "gpt8_fck", &gpt8_fck, CK_3XXX),
CLK(NULL, "gpt9_fck", &gpt9_fck, CK_3XXX),
CLK(NULL, "per_32k_alwon_fck", &per_32k_alwon_fck, CK_3XXX),
- CLK(NULL, "gpio6_dbck", &gpio6_dbck, CK_3XXX),
- CLK(NULL, "gpio5_dbck", &gpio5_dbck, CK_3XXX),
- CLK(NULL, "gpio4_dbck", &gpio4_dbck, CK_3XXX),
- CLK(NULL, "gpio3_dbck", &gpio3_dbck, CK_3XXX),
- CLK(NULL, "gpio2_dbck", &gpio2_dbck, CK_3XXX),
+ CLK("omap-gpio.5", "dbck", &gpio6_dbck, CK_3XXX),
+ CLK("omap-gpio.4", "dbck", &gpio5_dbck, CK_3XXX),
+ CLK("omap-gpio.3", "dbck", &gpio4_dbck, CK_3XXX),
+ CLK("omap-gpio.2", "dbck", &gpio3_dbck, CK_3XXX),
+ CLK("omap-gpio.1", "dbck", &gpio2_dbck, CK_3XXX),
CLK(NULL, "wdt3_fck", &wdt3_fck, CK_3XXX),
CLK(NULL, "per_l4_ick", &per_l4_ick, CK_3XXX),
- CLK(NULL, "gpio6_ick", &gpio6_ick, CK_3XXX),
- CLK(NULL, "gpio5_ick", &gpio5_ick, CK_3XXX),
- CLK(NULL, "gpio4_ick", &gpio4_ick, CK_3XXX),
- CLK(NULL, "gpio3_ick", &gpio3_ick, CK_3XXX),
- CLK(NULL, "gpio2_ick", &gpio2_ick, CK_3XXX),
+ CLK("omap-gpio.5", "ick", &gpio6_ick, CK_3XXX),
+ CLK("omap-gpio.4", "ick", &gpio5_ick, CK_3XXX),
+ CLK("omap-gpio.3", "ick", &gpio4_ick, CK_3XXX),
+ CLK("omap-gpio.2", "ick", &gpio3_ick, CK_3XXX),
+ CLK("omap-gpio.1", "ick", &gpio2_ick, CK_3XXX),
CLK(NULL, "wdt3_ick", &wdt3_ick, CK_3XXX),
CLK(NULL, "uart3_ick", &uart3_ick, CK_3XXX),
CLK(NULL, "gpt9_ick", &gpt9_ick, CK_3XXX),
diff --git a/arch/arm/mach-omap2/clock44xx_data.c b/arch/arm/mach-omap2/clock44xx_data.c
index a5c0c9c..4d76598 100644
--- a/arch/arm/mach-omap2/clock44xx_data.c
+++ b/arch/arm/mach-omap2/clock44xx_data.c
@@ -2566,12 +2566,12 @@ static struct omap_clk omap44xx_clks[] = {
CLK(NULL, "fdif_fck", &fdif_fck, CK_443X),
CLK(NULL, "per_sgx_fclk", &per_sgx_fclk, CK_443X),
CLK(NULL, "gfx_fck", &gfx_fck, CK_443X),
- CLK(NULL, "gpio1_ick", &gpio1_ick, CK_443X),
- CLK(NULL, "gpio2_ick", &gpio2_ick, CK_443X),
- CLK(NULL, "gpio3_ick", &gpio3_ick, CK_443X),
- CLK(NULL, "gpio4_ick", &gpio4_ick, CK_443X),
- CLK(NULL, "gpio5_ick", &gpio5_ick, CK_443X),
- CLK(NULL, "gpio6_ick", &gpio6_ick, CK_443X),
+ CLK("omap-gpio.0", "ick", &gpio1_ick, CK_443X),
+ CLK("omap-gpio.1", "ick", &gpio2_ick, CK_443X),
+ CLK("omap-gpio.2", "ick", &gpio3_ick, CK_443X),
+ CLK("omap-gpio.3", "ick", &gpio4_ick, CK_443X),
+ CLK("omap-gpio.4", "ick", &gpio5_ick, CK_443X),
+ CLK("omap-gpio.5", "ick", &gpio6_ick, CK_443X),
CLK(NULL, "gpmc_ick", &gpmc_ick, CK_443X),
CLK(NULL, "gpt1_fck", &gpt1_fck, CK_443X),
CLK(NULL, "gpt10_fck", &gpt10_fck, CK_443X),
@@ -2645,12 +2645,12 @@ static struct omap_clk omap44xx_clks[] = {
CLK(NULL, "usim_fclk", &usim_fclk, CK_443X),
CLK(NULL, "utmi_p1_gfclk_ck", &utmi_p1_gfclk_ck, CK_443X),
CLK(NULL, "utmi_p2_gfclk_ck", &utmi_p2_gfclk_ck, CK_443X),
- CLK(NULL, "gpio1_dbck", &dummy_ck, CK_443X),
- CLK(NULL, "gpio2_dbck", &dummy_ck, CK_443X),
- CLK(NULL, "gpio3_dbck", &dummy_ck, CK_443X),
- CLK(NULL, "gpio4_dbck", &dummy_ck, CK_443X),
- CLK(NULL, "gpio5_dbck", &dummy_ck, CK_443X),
- CLK(NULL, "gpio6_dbck", &dummy_ck, CK_443X),
+ CLK("omap-gpio.0", "dbck", &dummy_ck, CK_443X),
+ CLK("omap-gpio.1", "dbck", &dummy_ck, CK_443X),
+ CLK("omap-gpio.2", "dbck", &dummy_ck, CK_443X),
+ CLK("omap-gpio.3", "dbck", &dummy_ck, CK_443X),
+ CLK("omap-gpio.4", "dbck", &dummy_ck, CK_443X),
+ CLK("omap-gpio.5", "dbck", &dummy_ck, CK_443X),
CLK(NULL, "gpmc_ck", &dummy_ck, CK_443X),
CLK(NULL, "gpt1_ick", &dummy_ck, CK_443X),
CLK(NULL, "gpt2_ick", &dummy_ck, CK_443X),
diff --git a/arch/arm/plat-omap/gpio.c b/arch/arm/plat-omap/gpio.c
index 70deebc..55a5796 100644
--- a/arch/arm/plat-omap/gpio.c
+++ b/arch/arm/plat-omap/gpio.c
@@ -21,6 +21,8 @@
#include <linux/err.h>
#include <linux/clk.h>
#include <linux/io.h>
+#include <linux/slab.h>
+#include <linux/pm_runtime.h>
#include <mach/hardware.h>
#include <asm/irq.h>
@@ -147,102 +149,11 @@ struct gpio_bank {
struct gpio_chip chip;
struct clk *dbck;
u32 mod_usage;
+ struct device *dev;
+ bool dbck_flag;
};
-#define METHOD_MPUIO 0
-#define METHOD_GPIO_1510 1
-#define METHOD_GPIO_1610 2
-#define METHOD_GPIO_7XX 3
-#define METHOD_GPIO_24XX 5
-#define METHOD_GPIO_44XX 6
-
-#ifdef CONFIG_ARCH_OMAP16XX
-static struct gpio_bank gpio_bank_1610[5] = {
- { OMAP1_MPUIO_VBASE, NULL, INT_MPUIO, IH_MPUIO_BASE,
- METHOD_MPUIO },
- { OMAP1610_GPIO1_BASE, NULL, INT_GPIO_BANK1, IH_GPIO_BASE,
- METHOD_GPIO_1610 },
- { OMAP1610_GPIO2_BASE, NULL, INT_1610_GPIO_BANK2, IH_GPIO_BASE + 16,
- METHOD_GPIO_1610 },
- { OMAP1610_GPIO3_BASE, NULL, INT_1610_GPIO_BANK3, IH_GPIO_BASE + 32,
- METHOD_GPIO_1610 },
- { OMAP1610_GPIO4_BASE, NULL, INT_1610_GPIO_BANK4, IH_GPIO_BASE + 48,
- METHOD_GPIO_1610 },
-};
-#endif
-
-#ifdef CONFIG_ARCH_OMAP15XX
-static struct gpio_bank gpio_bank_1510[2] = {
- { OMAP1_MPUIO_VBASE, NULL, INT_MPUIO, IH_MPUIO_BASE,
- METHOD_MPUIO },
- { OMAP1510_GPIO_BASE, NULL, INT_GPIO_BANK1, IH_GPIO_BASE,
- METHOD_GPIO_1510 }
-};
-#endif
-
-#if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850)
-static struct gpio_bank gpio_bank_7xx[7] = {
- { OMAP1_MPUIO_VBASE, NULL, INT_7XX_MPUIO, IH_MPUIO_BASE,
- METHOD_MPUIO },
- { OMAP7XX_GPIO1_BASE, NULL, INT_7XX_GPIO_BANK1, IH_GPIO_BASE,
- METHOD_GPIO_7XX },
- { OMAP7XX_GPIO2_BASE, NULL, INT_7XX_GPIO_BANK2, IH_GPIO_BASE + 32,
- METHOD_GPIO_7XX },
- { OMAP7XX_GPIO3_BASE, NULL, INT_7XX_GPIO_BANK3, IH_GPIO_BASE + 64,
- METHOD_GPIO_7XX },
- { OMAP7XX_GPIO4_BASE, NULL, INT_7XX_GPIO_BANK4, IH_GPIO_BASE + 96,
- METHOD_GPIO_7XX },
- { OMAP7XX_GPIO5_BASE, NULL, INT_7XX_GPIO_BANK5, IH_GPIO_BASE + 128,
- METHOD_GPIO_7XX },
- { OMAP7XX_GPIO6_BASE, NULL, INT_7XX_GPIO_BANK6, IH_GPIO_BASE + 160,
- METHOD_GPIO_7XX },
-};
-#endif
-
-#ifdef CONFIG_ARCH_OMAP2
-
-static struct gpio_bank gpio_bank_242x[4] = {
- { OMAP242X_GPIO1_BASE, NULL, INT_24XX_GPIO_BANK1, IH_GPIO_BASE,
- METHOD_GPIO_24XX },
- { OMAP242X_GPIO2_BASE, NULL, INT_24XX_GPIO_BANK2, IH_GPIO_BASE + 32,
- METHOD_GPIO_24XX },
- { OMAP242X_GPIO3_BASE, NULL, INT_24XX_GPIO_BANK3, IH_GPIO_BASE + 64,
- METHOD_GPIO_24XX },
- { OMAP242X_GPIO4_BASE, NULL, INT_24XX_GPIO_BANK4, IH_GPIO_BASE + 96,
- METHOD_GPIO_24XX },
-};
-
-static struct gpio_bank gpio_bank_243x[5] = {
- { OMAP243X_GPIO1_BASE, NULL, INT_24XX_GPIO_BANK1, IH_GPIO_BASE,
- METHOD_GPIO_24XX },
- { OMAP243X_GPIO2_BASE, NULL, INT_24XX_GPIO_BANK2, IH_GPIO_BASE + 32,
- METHOD_GPIO_24XX },
- { OMAP243X_GPIO3_BASE, NULL, INT_24XX_GPIO_BANK3, IH_GPIO_BASE + 64,
- METHOD_GPIO_24XX },
- { OMAP243X_GPIO4_BASE, NULL, INT_24XX_GPIO_BANK4, IH_GPIO_BASE + 96,
- METHOD_GPIO_24XX },
- { OMAP243X_GPIO5_BASE, NULL, INT_24XX_GPIO_BANK5, IH_GPIO_BASE + 128,
- METHOD_GPIO_24XX },
-};
-
-#endif
-
#ifdef CONFIG_ARCH_OMAP3
-static struct gpio_bank gpio_bank_34xx[6] = {
- { OMAP34XX_GPIO1_BASE, NULL, INT_34XX_GPIO_BANK1, IH_GPIO_BASE,
- METHOD_GPIO_24XX },
- { OMAP34XX_GPIO2_BASE, NULL, INT_34XX_GPIO_BANK2, IH_GPIO_BASE + 32,
- METHOD_GPIO_24XX },
- { OMAP34XX_GPIO3_BASE, NULL, INT_34XX_GPIO_BANK3, IH_GPIO_BASE + 64,
- METHOD_GPIO_24XX },
- { OMAP34XX_GPIO4_BASE, NULL, INT_34XX_GPIO_BANK4, IH_GPIO_BASE + 96,
- METHOD_GPIO_24XX },
- { OMAP34XX_GPIO5_BASE, NULL, INT_34XX_GPIO_BANK5, IH_GPIO_BASE + 128,
- METHOD_GPIO_24XX },
- { OMAP34XX_GPIO6_BASE, NULL, INT_34XX_GPIO_BANK6, IH_GPIO_BASE + 160,
- METHOD_GPIO_24XX },
-};
-
struct omap3_gpio_regs {
u32 sysconfig;
u32 irqenable1;
@@ -262,26 +173,9 @@ struct omap3_gpio_regs {
static struct omap3_gpio_regs gpio_context[OMAP34XX_NR_GPIOS];
#endif
-#ifdef CONFIG_ARCH_OMAP4
-static struct gpio_bank gpio_bank_44xx[6] = {
- { OMAP44XX_GPIO1_BASE, NULL, OMAP44XX_IRQ_GPIO1, IH_GPIO_BASE,
- METHOD_GPIO_44XX },
- { OMAP44XX_GPIO2_BASE, NULL, OMAP44XX_IRQ_GPIO2, IH_GPIO_BASE + 32,
- METHOD_GPIO_44XX },
- { OMAP44XX_GPIO3_BASE, NULL, OMAP44XX_IRQ_GPIO3, IH_GPIO_BASE + 64,
- METHOD_GPIO_44XX },
- { OMAP44XX_GPIO4_BASE, NULL, OMAP44XX_IRQ_GPIO4, IH_GPIO_BASE + 96,
- METHOD_GPIO_44XX },
- { OMAP44XX_GPIO5_BASE, NULL, OMAP44XX_IRQ_GPIO5, IH_GPIO_BASE + 128,
- METHOD_GPIO_44XX },
- { OMAP44XX_GPIO6_BASE, NULL, OMAP44XX_IRQ_GPIO6, IH_GPIO_BASE + 160,
- METHOD_GPIO_44XX },
-};
-
-#endif
-
static struct gpio_bank *gpio_bank;
static int gpio_bank_count;
+static int gpio_bank_bits;
static inline struct gpio_bank *get_gpio_bank(int gpio)
{
@@ -587,6 +481,12 @@ void omap_set_gpio_debounce(int gpio, int enable)
return;
}
+ if ((bank->dbck_flag == true) && (!bank->dbck)) {
+ bank->dbck = clk_get(bank->dev, "dbck");
+ if (IS_ERR(bank->dbck))
+ pr_err("GPIO: Could not get dbck\n");
+ }
+
spin_lock_irqsave(&bank->lock, flags);
val = __raw_readl(reg);
@@ -1467,7 +1367,8 @@ static struct platform_device omap_mpuio_device = {
static inline void mpuio_init(void)
{
- platform_set_drvdata(&omap_mpuio_device, &gpio_bank_1610[0]);
+ struct gpio_bank *bank = get_gpio_bank(OMAP_MPUIO(0));
+ platform_set_drvdata(&omap_mpuio_device, bank);
if (platform_driver_register(&omap_mpuio_driver) == 0)
(void) platform_device_register(&omap_mpuio_device);
@@ -1581,24 +1482,6 @@ static int gpio_2irq(struct gpio_chip *chip, unsigned offset)
/*---------------------------------------------------------------------*/
-static int initialized;
-#if defined(CONFIG_ARCH_OMAP1) || defined(CONFIG_ARCH_OMAP2)
-static struct clk * gpio_ick;
-#endif
-
-#if defined(CONFIG_ARCH_OMAP2)
-static struct clk * gpio_fck;
-#endif
-
-#if defined(CONFIG_ARCH_OMAP2430)
-static struct clk * gpio5_ick;
-static struct clk * gpio5_fck;
-#endif
-
-#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_ARCH_OMAP4)
-static struct clk *gpio_iclks[OMAP34XX_NR_GPIOS];
-#endif
-
static void __init omap_gpio_show_rev(void)
{
u32 rev;
@@ -1621,6 +1504,17 @@ static void __init omap_gpio_show_rev(void)
*/
static struct lock_class_key gpio_lock_class;
+static inline int init_gpio_info(void)
+{
+ gpio_bank = kzalloc(gpio_bank_count * sizeof(struct gpio_bank),
+ GFP_KERNEL);
+ if (!gpio_bank) {
+ pr_err("Memory allocation failed for gpio_bank\n");
+ return -ENOMEM;
+ }
+ return 0;
+}
+
static void omap_gpio_mod_init(struct gpio_bank *bank, int id)
{
if (cpu_class_is_omap2()) {
@@ -1686,16 +1580,9 @@ static void omap_gpio_mod_init(struct gpio_bank *bank, int id)
static void __init omap_gpio_chip_init(struct gpio_bank *bank)
{
- int j, gpio_bank_bits = 16;
+ int j;
static int gpio;
- if (cpu_is_omap7xx() && bank->method == METHOD_GPIO_7XX)
- gpio_bank_bits = 32; /* 7xx has 32-bit GPIOs */
-
- if ((bank->method == METHOD_GPIO_24XX) ||
- (bank->method == METHOD_GPIO_44XX))
- gpio_bank_bits = 32;
-
bank->mod_usage = 0;
/* REVISIT eventually switch from OMAP-specific gpio structs
* over to the generic ones
@@ -1737,139 +1624,102 @@ static void __init omap_gpio_chip_init(struct gpio_bank *bank)
set_irq_data(bank->irq, bank);
}
-static int __init _omap_gpio_init(void)
+static int __devinit omap_gpio_probe(struct platform_device *pdev)
{
- int i;
- int gpio = 0;
+ static int gpio_init_done;
+ struct omap_gpio_platform_data *pdata;
+ int id;
struct gpio_bank *bank;
- int bank_size = SZ_8K; /* Module 4KB + L4 4KB except on omap1 */
- char clk_name[11];
-
- initialized = 1;
+ struct resource *res;
-#if defined(CONFIG_ARCH_OMAP1)
- if (cpu_is_omap15xx()) {
- gpio_ick = clk_get(NULL, "arm_gpio_ck");
- if (IS_ERR(gpio_ick))
- printk("Could not get arm_gpio_ck\n");
- else
- clk_enable(gpio_ick);
+ if (!pdev || !pdev->dev.platform_data) {
+ pr_err("GPIO device initialize without"
+ "platform data\n");
+ return -EINVAL;
}
-#endif
-#if defined(CONFIG_ARCH_OMAP2)
- if (cpu_class_is_omap2()) {
- gpio_ick = clk_get(NULL, "gpios_ick");
- if (IS_ERR(gpio_ick))
- printk("Could not get gpios_ick\n");
- else
- clk_enable(gpio_ick);
- gpio_fck = clk_get(NULL, "gpios_fck");
- if (IS_ERR(gpio_fck))
- printk("Could not get gpios_fck\n");
- else
- clk_enable(gpio_fck);
- /*
- * On 2430 & 3430 GPIO 5 uses CORE L4 ICLK
- */
-#if defined(CONFIG_ARCH_OMAP2430)
- if (cpu_is_omap2430()) {
- gpio5_ick = clk_get(NULL, "gpio5_ick");
- if (IS_ERR(gpio5_ick))
- printk("Could not get gpio5_ick\n");
- else
- clk_enable(gpio5_ick);
- gpio5_fck = clk_get(NULL, "gpio5_fck");
- if (IS_ERR(gpio5_fck))
- printk("Could not get gpio5_fck\n");
- else
- clk_enable(gpio5_fck);
- }
-#endif
- }
-#endif
+ pdata = pdev->dev.platform_data;
-#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_ARCH_OMAP4)
- if (cpu_is_omap34xx() || cpu_is_omap44xx()) {
- for (i = 0; i < OMAP34XX_NR_GPIOS; i++) {
- sprintf(clk_name, "gpio%d_ick", i + 1);
- gpio_iclks[i] = clk_get(NULL, clk_name);
- if (IS_ERR(gpio_iclks[i]))
- printk(KERN_ERR "Could not get %s\n", clk_name);
- else
- clk_enable(gpio_iclks[i]);
- }
- }
-#endif
+ if (!gpio_init_done) {
+ int ret;
+ gpio_bank_count = pdata->gpio_attr->gpio_bank_count;
+ gpio_bank_bits = pdata->gpio_attr->gpio_bank_bits;
-#ifdef CONFIG_ARCH_OMAP15XX
- if (cpu_is_omap15xx()) {
- gpio_bank_count = 2;
- gpio_bank = gpio_bank_1510;
- bank_size = SZ_2K;
+ ret = init_gpio_info();
+ if (ret)
+ return ret;
}
-#endif
-#if defined(CONFIG_ARCH_OMAP16XX)
- if (cpu_is_omap16xx()) {
- gpio_bank_count = 5;
- gpio_bank = gpio_bank_1610;
- bank_size = SZ_2K;
- }
-#endif
-#if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850)
- if (cpu_is_omap7xx()) {
- gpio_bank_count = 7;
- gpio_bank = gpio_bank_7xx;
- bank_size = SZ_2K;
- }
-#endif
-#ifdef CONFIG_ARCH_OMAP2
- if (cpu_is_omap242x()) {
- gpio_bank_count = 4;
- gpio_bank = gpio_bank_242x;
- }
- if (cpu_is_omap243x()) {
- gpio_bank_count = 5;
- gpio_bank = gpio_bank_243x;
+
+ id = pdev->id;
+ bank = &gpio_bank[id];
+
+ res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+ if (unlikely(!res)) {
+ pr_err("GPIO Bank %i Invalid IRQ resource\n", id);
+ return -ENODEV;
}
-#endif
-#ifdef CONFIG_ARCH_OMAP3
- if (cpu_is_omap34xx()) {
- gpio_bank_count = OMAP34XX_NR_GPIOS;
- gpio_bank = gpio_bank_34xx;
+ bank->irq = res->start;
+ bank->virtual_irq_start = pdata->virtual_irq_start;
+ bank->method = pdata->method;
+ bank->dev = &pdev->dev;
+
+ spin_lock_init(&bank->lock);
+
+ /* Static mapping, never released */
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (unlikely(!res)) {
+ pr_err("GPIO Bank %i Invalid mem resource\n", id);
+ return -ENODEV;
}
-#endif
-#ifdef CONFIG_ARCH_OMAP4
- if (cpu_is_omap44xx()) {
- gpio_bank_count = OMAP34XX_NR_GPIOS;
- gpio_bank = gpio_bank_44xx;
+
+ bank->base = ioremap(res->start, resource_size(res));
+ if (!bank->base) {
+ pr_err("Could not ioremap gpio bank%i\n", id);
+ return -ENOMEM;
}
-#endif
- for (i = 0; i < gpio_bank_count; i++) {
- bank = &gpio_bank[i];
- spin_lock_init(&bank->lock);
+ pm_runtime_enable(bank->dev);
- /* Static mapping, never released */
- bank->base = ioremap(bank->pbase, bank_size);
- if (!bank->base) {
- printk(KERN_ERR "Could not ioremap gpio bank%i\n", i);
- continue;
- }
+ pm_runtime_get_sync(bank->dev);
- omap_gpio_mod_init(bank, i);
- omap_gpio_chip_init(bank);
+ if (cpu_class_is_omap2()) {
+#ifndef CONFIG_PM_RUNTIME
+ struct clk *clock;
+
+ clock = clk_get(bank->dev, "ick");
+ if (IS_ERR(clock))
+ pr_err("GPIO %d: Could not get ick\n", id + 1);
+ else
+ clk_enable(clock);
+
- if (cpu_is_omap34xx() || cpu_is_omap44xx()) {
- sprintf(clk_name, "gpio%d_dbck", i + 1);
- bank->dbck = clk_get(NULL, clk_name);
- if (IS_ERR(bank->dbck))
- printk(KERN_ERR "Could not get %s\n", clk_name);
+ if (pdata->gpio_attr->fck_flag) {
+ clock = clk_get(bank->dev, "fck");
+ if (IS_ERR(clock))
+ pr_err("GPIO %d: Could not get fck\n", id + 1);
+ else
+ clk_enable(clock);
}
+#endif
+ bank->dbck_flag = pdata->gpio_attr->dbck_flag;
+ } else if (pdata->gpio_attr->arm_gpio_ck_flag && !gpio_init_done) {
+ static struct clk *gpio_clk;
+
+ gpio_clk = clk_get(&pdev->dev, "arm_gpio_ck");
+ if (IS_ERR(gpio_clk))
+ pr_err("Could not get arm_gpio_ck\n");
+ else
+ clk_enable(gpio_clk);
}
+
+ omap_gpio_mod_init(bank, id);
+ omap_gpio_chip_init(bank);
- omap_gpio_show_rev();
+ if (!gpio_init_done) {
+ omap_gpio_show_rev();
+ gpio_init_done = 1;
+ }
return 0;
}
@@ -2210,25 +2068,34 @@ void omap_gpio_restore_context(void)
}
#endif
+static struct platform_driver omap_gpio_driver = {
+ .probe = omap_gpio_probe,
+ .driver = {
+ .name = "omap-gpio",
+ },
+};
+
/*
- * This may get called early from board specific init
- * for boards that have interrupts routed via FPGA.
+ * gpio driver register needs to be done before
+ * machine_init functions access gpio APIs.
+ * Hence omap_gpio_drv_reg() is a postcore_initcall.
*/
+static int __init omap_gpio_drv_reg(void)
+{
+ return platform_driver_register(&omap_gpio_driver);
+}
+postcore_initcall(omap_gpio_drv_reg);
+
+/* TODO: Remove omap_gpio_init() and its usage from board files */
int __init omap_gpio_init(void)
{
- if (!initialized)
- return _omap_gpio_init();
- else
- return 0;
+ return 0;
}
static int __init omap_gpio_sysinit(void)
{
int ret = 0;
- if (!initialized)
- ret = _omap_gpio_init();
-
mpuio_init();
#if defined(CONFIG_ARCH_OMAP16XX) || defined(CONFIG_ARCH_OMAP2PLUS)
--
1.6.3.3
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