Re: [PATCH 07/21] OMAP3+: PM: SR/Class3: disable errorgen before disable VP

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Hello.

On 25-01-2012 19:16, Jean Pihet wrote:

From: Nishanth Menon<nm@xxxxxx>

SmartReflex AVS Errorgen module supplies signals to Voltage
Processor. It is suggested that by disabling Errorgen module
before we disable VP, we might be able to ensure lesser
chances of race condition to occur in the system.

Change-Id: Id0145adacfa63d7652a29859ad6c95cc2ac61cc8

   Please remove this line.

Signed-off-by: Nishanth Menon<nm@xxxxxx>
Signed-off-by: Jean Pihet<j-pihet@xxxxxx>
[...]

diff --git a/arch/arm/mach-omap2/smartreflex.c b/arch/arm/mach-omap2/smartreflex.c
index ee224df..d7294c6 100644
--- a/arch/arm/mach-omap2/smartreflex.c
+++ b/arch/arm/mach-omap2/smartreflex.c
@@ -454,6 +454,50 @@ int sr_configure_errgen(struct voltagedomain *voltdm)
  }

  /**
+ * sr_disable_errgen() - Disables SmartReflex AVS module's errgen component
+ * @voltdm: voltagedomain pointer to which the SR module to be configured belongs to.
+ *
+ * This API is to be called from the smartreflex class driver to
+ * disable the error generator module inside the smartreflex module.
+ *
+ * Returns 0 on success and error value in case of failure.
+ */
+int sr_disable_errgen(struct voltagedomain *voltdm)
+{
+	u32 errconfig_offs, vpboundint_en;
+	u32 vpboundint_st;
+	struct omap_sr *sr = _sr_lookup(voltdm);
+
+	if (IS_ERR(sr)) {
+		pr_warning("%s: omap_sr struct for sr_%s not found\n",
+			__func__, voltdm->name);
+		return -EINVAL;

   Not PTR_ERR(sr)?

WBR, Sergei
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