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From: Josh Boyer <jwboyer@fedoraproject.org>
Date: Wed, 8 Oct 2014 19:10:10 -0400
Subject: [PATCH] Revert "pinctrl: qcom: use restart_notifier mechanism for
ps_hold"
This reverts commit cf1fc187628913070c3e418ce0e205732435aa2f.
---
drivers/pinctrl/qcom/pinctrl-msm.c | 31 +++++++++++++------------------
1 file changed, 13 insertions(+), 18 deletions(-)
diff --git a/drivers/pinctrl/qcom/pinctrl-msm.c b/drivers/pinctrl/qcom/pinctrl-msm.c
index e730935fa457..c57ca10bed20 100644
--- a/drivers/pinctrl/qcom/pinctrl-msm.c
+++ b/drivers/pinctrl/qcom/pinctrl-msm.c
@@ -27,7 +27,8 @@
#include <linux/gpio.h>
#include <linux/interrupt.h>
#include <linux/spinlock.h>
-#include <linux/reboot.h>
+
+#include <asm/system_misc.h>
#include "../core.h"
#include "../pinconf.h"
@@ -42,7 +43,6 @@
* @dev: device handle.
* @pctrl: pinctrl handle.
* @chip: gpiochip handle.
- * @restart_nb: restart notifier block.
* @irq: parent irq for the TLMM irq_chip.
* @lock: Spinlock to protect register resources as well
* as msm_pinctrl data structures.
@@ -56,7 +56,6 @@ struct msm_pinctrl {
struct device *dev;
struct pinctrl_dev *pctrl;
struct gpio_chip chip;
- struct notifier_block restart_nb;
int irq;
spinlock_t lock;
@@ -853,14 +852,13 @@ static int msm_gpio_init(struct msm_pinctrl *pctrl)
return 0;
}
-static int msm_ps_hold_restart(struct notifier_block *nb, unsigned long action,
- void *data)
-{
- struct msm_pinctrl *pctrl = container_of(nb, struct msm_pinctrl, restart_nb);
+#ifdef CONFIG_ARM
+static void __iomem *msm_ps_hold;
- writel(0, pctrl->regs + PS_HOLD_OFFSET);
- mdelay(1000);
- return NOTIFY_DONE;
+static void msm_reset(enum reboot_mode reboot_mode, const char *cmd)
+{
+ writel(0, msm_ps_hold);
+ mdelay(10000);
}
static void msm_pinctrl_setup_pm_reset(struct msm_pinctrl *pctrl)
@@ -870,14 +868,13 @@ static void msm_pinctrl_setup_pm_reset(struct msm_pinctrl *pctrl)
for (; i <= pctrl->soc->nfunctions; i++)
if (!strcmp(func[i].name, "ps_hold")) {
- pctrl->restart_nb.notifier_call = msm_ps_hold_restart;
- pctrl->restart_nb.priority = 128;
- if (register_restart_handler(&pctrl->restart_nb))
- dev_err(pctrl->dev,
- "failed to setup restart handler.\n");
- break;
+ msm_ps_hold = pctrl->regs + PS_HOLD_OFFSET;
+ arm_pm_restart = msm_reset;
}
}
+#else
+static void msm_pinctrl_setup_pm_reset(const struct msm_pinctrl *pctrl) {}
+#endif
int msm_pinctrl_probe(struct platform_device *pdev,
const struct msm_pinctrl_soc_data *soc_data)
@@ -940,8 +937,6 @@ int msm_pinctrl_remove(struct platform_device *pdev)
gpiochip_remove(&pctrl->chip);
pinctrl_unregister(pctrl->pctrl);
- unregister_restart_handler(&pctrl->restart_nb);
-
return 0;
}
EXPORT_SYMBOL(msm_pinctrl_remove);
--
1.9.3
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