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gpio: Enable clock control in Beetle GPIO driver

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This patch enables the clock control interface into the ARM LTD
Beetle GPIO driver.

Jira: ZEP-1300
Change-Id: I576767b68a8e4aa965d34716528df3bb4e837d73
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@linaro.org>
This commit is contained in:
Vincenzo Frascino 2016-11-09 15:32:33 +00:00 • committed by Kumar Gala
commit 8ca930a5c0
1 changed files with 43 additions and 0 deletions
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43
drivers/gpio/gpio_cmsdk_ahb.c
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@ -21,6 +21,7 @@
#include <gpio.h>
#include <init.h>
#include <soc.h>
#include <clock_control/arm_clock_control.h>
#include "gpio_cmsdk_ahb.h"
#include "gpio_utils.h"
@ -34,6 +35,12 @@ typedef void (*gpio_config_func_t)(struct device *port);
struct gpio_cmsdk_ahb_cfg {
volatile struct gpio_cmsdk_ahb *port;
gpio_config_func_t gpio_config_func;
/* GPIO Clock control in Active State */
struct arm_clock_control_t gpio_cc_as;
/* GPIO Clock control in Sleep State */
struct arm_clock_control_t gpio_cc_ss;
/* GPIO Clock control in Deep Sleep State */
struct arm_clock_control_t gpio_cc_dss;
};
struct gpio_cmsdk_ahb_dev_data {
@ -297,6 +304,18 @@ static int gpio_cmsdk_ahb_init(struct device *dev)
{
const struct gpio_cmsdk_ahb_cfg * const cfg = dev->config->config_info;
#ifdef CONFIG_CLOCK_CONTROL
/* Enable clock for subsystem */
struct device *clk =
device_get_binding(CONFIG_ARM_CLOCK_CONTROL_DEV_NAME);
#ifdef CONFIG_SOC_SERIES_BEETLE
clock_control_on(clk, (clock_control_subsys_t *) &cfg->gpio_cc_as);
clock_control_off(clk, (clock_control_subsys_t *) &cfg->gpio_cc_ss);
clock_control_off(clk, (clock_control_subsys_t *) &cfg->gpio_cc_dss);
#endif /* CONFIG_SOC_SERIES_BEETLE */
#endif /* CONFIG_CLOCK_CONTROL */
cfg->gpio_config_func(dev);
return 0;
@ -309,6 +328,12 @@ static void gpio_cmsdk_ahb_config_0(struct device *dev);
static const struct gpio_cmsdk_ahb_cfg gpio_cmsdk_ahb_0_cfg = {
.port = ((volatile struct gpio_cmsdk_ahb *)CMSDK_AHB_GPIO0),
.gpio_config_func = gpio_cmsdk_ahb_config_0,
.gpio_cc_as = {.bus = CMSDK_AHB, .state = SOC_ACTIVE,
.device = CMSDK_AHB_GPIO0,},
.gpio_cc_ss = {.bus = CMSDK_AHB, .state = SOC_SLEEP,
.device = CMSDK_AHB_GPIO0,},
.gpio_cc_dss = {.bus = CMSDK_AHB, .state = SOC_DEEPSLEEP,
.device = CMSDK_AHB_GPIO0,},
};
static struct gpio_cmsdk_ahb_dev_data gpio_cmsdk_ahb_0_data;
@ -336,6 +361,12 @@ static void gpio_cmsdk_ahb_config_1(struct device *dev);
static const struct gpio_cmsdk_ahb_cfg gpio_cmsdk_ahb_1_cfg = {
.port = ((volatile struct gpio_cmsdk_ahb *)CMSDK_AHB_GPIO1),
.gpio_config_func = gpio_cmsdk_ahb_config_1,
.gpio_cc_as = {.bus = CMSDK_AHB, .state = SOC_ACTIVE,
.device = CMSDK_AHB_GPIO1,},
.gpio_cc_ss = {.bus = CMSDK_AHB, .state = SOC_SLEEP,
.device = CMSDK_AHB_GPIO1,},
.gpio_cc_dss = {.bus = CMSDK_AHB, .state = SOC_DEEPSLEEP,
.device = CMSDK_AHB_GPIO1,},
};
static struct gpio_cmsdk_ahb_dev_data gpio_cmsdk_ahb_1_data;
@ -363,6 +394,12 @@ static void gpio_cmsdk_ahb_config_2(struct device *dev);
static const struct gpio_cmsdk_ahb_cfg gpio_cmsdk_ahb_2_cfg = {
.port = ((volatile struct gpio_cmsdk_ahb *)CMSDK_AHB_GPIO2),
.gpio_config_func = gpio_cmsdk_ahb_config_2,
.gpio_cc_as = {.bus = CMSDK_AHB, .state = SOC_ACTIVE,
.device = CMSDK_AHB_GPIO2,},
.gpio_cc_ss = {.bus = CMSDK_AHB, .state = SOC_SLEEP,
.device = CMSDK_AHB_GPIO2,},
.gpio_cc_dss = {.bus = CMSDK_AHB, .state = SOC_DEEPSLEEP,
.device = CMSDK_AHB_GPIO2,},
};
static struct gpio_cmsdk_ahb_dev_data gpio_cmsdk_ahb_2_data;
@ -390,6 +427,12 @@ static void gpio_cmsdk_ahb_config_3(struct device *dev);
static const struct gpio_cmsdk_ahb_cfg gpio_cmsdk_ahb_3_cfg = {
.port = ((volatile struct gpio_cmsdk_ahb *)CMSDK_AHB_GPIO3),
.gpio_config_func = gpio_cmsdk_ahb_config_3,
.gpio_cc_as = {.bus = CMSDK_AHB, .state = SOC_ACTIVE,
.device = CMSDK_AHB_GPIO3,},
.gpio_cc_ss = {.bus = CMSDK_AHB, .state = SOC_SLEEP,
.device = CMSDK_AHB_GPIO3,},
.gpio_cc_dss = {.bus = CMSDK_AHB, .state = SOC_DEEPSLEEP,
.device = CMSDK_AHB_GPIO3,},
};
static struct gpio_cmsdk_ahb_dev_data gpio_cmsdk_ahb_3_data;