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authorJiri Kosina <jkosina@suse.cz>2011-04-26 10:22:15 +0200
committerJiri Kosina <jkosina@suse.cz>2011-04-26 10:22:59 +0200
commit07f9479a40cc778bc1462ada11f95b01360ae4ff (patch)
tree0676cf38df3844004bb3ebfd99dfa67a4a8998f5 /arch/arm/mach-tegra/board-harmony-pcie.c
parentath9k_hw: don't touch with treewide double semicolon removal (diff)
parentMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ecr... (diff)
downloadlinux-07f9479a40cc778bc1462ada11f95b01360ae4ff.tar.xz
linux-07f9479a40cc778bc1462ada11f95b01360ae4ff.zip
Merge branch 'master' into for-next
Fast-forwarded to current state of Linus' tree as there are patches to be applied for files that didn't exist on the old branch.
Diffstat (limited to 'arch/arm/mach-tegra/board-harmony-pcie.c')
-rw-r--r--arch/arm/mach-tegra/board-harmony-pcie.c24
1 files changed, 23 insertions, 1 deletions
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