From a006076b15c32e2f9c2c133697b5c662f7d1294e Mon Sep 17 00:00:00 2001
From: Rajeshwari Shinde <rajeshwari.s@samsung.com>
Date: Thu, 14 Feb 2013 19:46:11 +0000
Subject: [PATCH] EXYNOS5: Add function to enable XXTI clock source
This patch adds funtion to enable XXTI clock source
required by MAX98095 codec.
Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
---
arch/arm/cpu/armv7/exynos/power.c | 17 +++++++++++++++++
arch/arm/include/asm/arch-exynos/power.h | 11 +++++++++++
2 files changed, 28 insertions(+)
diff --git a/arch/arm/cpu/armv7/exynos/power.c b/arch/arm/cpu/armv7/exynos/power.c
index 400c8bcfc5f..db7249ef7fd 100644
--- a/arch/arm/cpu/armv7/exynos/power.c
+++ b/arch/arm/cpu/armv7/exynos/power.c
@@ -111,3 +111,20 @@ void set_ps_hold_ctrl(void)
if (cpu_is_exynos5())
exynos5_set_ps_hold_ctrl();
}
+
+
+static void exynos5_set_xclkout(void)
+{
+ struct exynos5_power *power =
+ (struct exynos5_power *)samsung_get_base_power();
+
+ /* use xxti for xclk out */
+ clrsetbits_le32(&power->pmu_debug, PMU_DEBUG_CLKOUT_SEL_MASK,
+ PMU_DEBUG_XXTI);
+}
+
+void set_xclkout(void)
+{
+ if (cpu_is_exynos5())
+ exynos5_set_xclkout();
+}
diff --git a/arch/arm/include/asm/arch-exynos/power.h b/arch/arm/include/asm/arch-exynos/power.h
index f2f73faa759..5f2633763c4 100644
--- a/arch/arm/include/asm/arch-exynos/power.h
+++ b/arch/arm/include/asm/arch-exynos/power.h
@@ -873,4 +873,15 @@ void set_dp_phy_ctrl(unsigned int enable);
* (e.g. power button).
*/
void set_ps_hold_ctrl(void);
+
+/* PMU_DEBUG bits [12:8] = 0x1000 selects XXTI clock source */
+#define PMU_DEBUG_XXTI 0x1000
+/* Mask bit[12:8] for xxti clock selection */
+#define PMU_DEBUG_CLKOUT_SEL_MASK 0x1f00
+
+/*
+ * Pmu debug is used for xclkout, enable xclkout with
+ * source as XXTI
+ */
+void set_xclkout(void);
#endif
--
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