X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=arch%2Farm%2Fmach-tegra%2Fboard-harmony-pcie.c;h=9c27b95b8d869f975ae382c2eb076c6671034ba1;hb=16c29dafcc86024048f1dbb8349d31cb22c7c55a;hp=f7e7d4514b6ad7ffc28ba86bcf5377c2749b604f;hpb=d834a9dcecae834cd6b2bc5e50e1907738d9cf6a;p=pandora-kernel.git

diff --git a/arch/arm/mach-tegra/board-harmony-pcie.c b/arch/arm/mach-tegra/board-harmony-pcie.c
index f7e7d4514b6a..9c27b95b8d86 100644
--- a/arch/arm/mach-tegra/board-harmony-pcie.c
+++ b/arch/arm/mach-tegra/board-harmony-pcie.c
@@ -27,13 +27,29 @@
 
 #ifdef CONFIG_TEGRA_PCI
 
+/* GPIO 3 of the PMIC */
+#define EN_VDD_1V05_GPIO	(TEGRA_NR_GPIOS + 2)
+
 static int __init harmony_pcie_init(void)
 {
+	struct regulator *regulator = NULL;
 	int err;
 
 	if (!machine_is_harmony())
 		return 0;
 
+	err = gpio_request(EN_VDD_1V05_GPIO, "EN_VDD_1V05");
+	if (err)
+		return err;
+
+	gpio_direction_output(EN_VDD_1V05_GPIO, 1);
+
+	regulator = regulator_get(NULL, "pex_clk");
+	if (IS_ERR_OR_NULL(regulator))
+		goto err_reg;
+
+	regulator_enable(regulator);
+
 	tegra_pinmux_set_tristate(TEGRA_PINGROUP_GPV, TEGRA_TRI_NORMAL);
 	tegra_pinmux_set_tristate(TEGRA_PINGROUP_SLXA, TEGRA_TRI_NORMAL);
 	tegra_pinmux_set_tristate(TEGRA_PINGROUP_SLXK, TEGRA_TRI_NORMAL);
@@ -49,9 +65,15 @@ err_pcie:
 	tegra_pinmux_set_tristate(TEGRA_PINGROUP_SLXA, TEGRA_TRI_TRISTATE);
 	tegra_pinmux_set_tristate(TEGRA_PINGROUP_SLXK, TEGRA_TRI_TRISTATE);
 
+	regulator_disable(regulator);
+	regulator_put(regulator);
+err_reg:
+	gpio_free(EN_VDD_1V05_GPIO);
+
 	return err;
 }
 
-subsys_initcall(harmony_pcie_init);
+/* PCI should be initialized after I2C, mfd and regulators */
+subsys_initcall_sync(harmony_pcie_init);
 
 #endif