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authorAnton Arapov <anton@redhat.com>2012-04-16 10:05:28 +0200
committerAnton Arapov <anton@redhat.com>2012-04-16 10:05:28 +0200
commitb4b6116a13633898cf868f2f103c96a90c4c20f8 (patch)
tree93d1b7e2cfcdf473d8d4ff3ad141fa864f8491f6 /arch/arm/mach-tegra/board-harmony-pcie.c
parentedd4be777c953e5faafc80d091d3084b4343f5d3 (diff)
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fedora kernel: d9aad82f3319f3cfd1aebc01234254ef0c37ad84v3.3.2-1
Signed-off-by: Anton Arapov <anton@redhat.com>
Diffstat (limited to 'arch/arm/mach-tegra/board-harmony-pcie.c')
-rw-r--r--arch/arm/mach-tegra/board-harmony-pcie.c68
1 files changed, 68 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/board-harmony-pcie.c b/arch/arm/mach-tegra/board-harmony-pcie.c
new file mode 100644
index 00000000000..33c4fedab84
--- /dev/null
+++ b/arch/arm/mach-tegra/board-harmony-pcie.c
@@ -0,0 +1,68 @@
+/*
+ * arch/arm/mach-tegra/board-harmony-pcie.c
+ *
+ * Copyright (C) 2010 CompuLab, Ltd.
+ * Mike Rapoport <mike@compulab.co.il>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/gpio.h>
+#include <linux/err.h>
+#include <linux/regulator/consumer.h>
+
+#include <asm/mach-types.h>
+
+#include "board.h"
+#include "board-harmony.h"
+
+#ifdef CONFIG_TEGRA_PCI
+
+static int __init harmony_pcie_init(void)
+{
+ struct regulator *regulator = NULL;
+ int err;
+
+ if (!machine_is_harmony())
+ return 0;
+
+ err = gpio_request(TEGRA_GPIO_EN_VDD_1V05_GPIO, "EN_VDD_1V05");
+ if (err)
+ return err;
+
+ gpio_direction_output(TEGRA_GPIO_EN_VDD_1V05_GPIO, 1);
+
+ regulator = regulator_get(NULL, "pex_clk");
+ if (IS_ERR_OR_NULL(regulator))
+ goto err_reg;
+
+ regulator_enable(regulator);
+
+ err = tegra_pcie_init(true, true);
+ if (err)
+ goto err_pcie;
+
+ return 0;
+
+err_pcie:
+ regulator_disable(regulator);
+ regulator_put(regulator);
+err_reg:
+ gpio_free(TEGRA_GPIO_EN_VDD_1V05_GPIO);
+
+ return err;
+}
+
+/* PCI should be initialized after I2C, mfd and regulators */
+subsys_initcall_sync(harmony_pcie_init);
+
+#endif