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authorMatt Pedro <mapedro@nvidia.com>2014-04-02 16:51:09 -0400
committerMatthew Pedro <mapedro@nvidia.com>2014-04-02 15:46:55 -0700
commite9674f0d9e0d6170fe424db12ba816357c0afc18 (patch)
tree625086da3eb36a2cc7286d263e7930704df977c8 /drivers/pci
parente2671f264c8df106447103f2329d994f4952faa3 (diff)
Revert "pcie: host: tegra: Fix error exit from probe"
This reverts commit 1d5c438690a6000f11bf4610e4029dcdd6e5b8ba. This change is causing failures on l4t nvlptest. Change-Id: Iec560e71c60f1243823807d73d82bc89cb35f9a8 Signed-off-by: Matt Pedro <mapedro@nvidia.com> Reviewed-on: http://git-master/r/391491
Diffstat (limited to 'drivers/pci')
-rw-r--r--drivers/pci/host/pci-tegra.c73
1 files changed, 34 insertions, 39 deletions
diff --git a/drivers/pci/host/pci-tegra.c b/drivers/pci/host/pci-tegra.c
index ed8230cc4d13..680f366cddf8 100644
--- a/drivers/pci/host/pci-tegra.c
+++ b/drivers/pci/host/pci-tegra.c
@@ -1273,36 +1273,6 @@ err_exit:
return err;
}
-static int tegra_pcie_clocks_get(void)
-{
- PR_FUNC_LINE;
- /* get the PCIEXCLK */
- tegra_pcie.pcie_xclk = clk_get_sys("tegra_pcie", "pciex");
- if (IS_ERR_OR_NULL(tegra_pcie.pcie_xclk)) {
- pr_err("%s: unable to get PCIE Xclock\n", __func__);
- return -EINVAL;
- }
- tegra_pcie.pcie_mselect = clk_get_sys("tegra_pcie", "mselect");
- if (IS_ERR_OR_NULL(tegra_pcie.pcie_mselect)) {
- pr_err("%s: unable to get PCIE mselect clock\n", __func__);
- return -EINVAL;
- }
- return 0;
-}
-
-static void tegra_pcie_clocks_put(void)
-{
- PR_FUNC_LINE;
- if (tegra_pcie.pcie_xclk) {
- clk_put(tegra_pcie.pcie_xclk);
- tegra_pcie.pcie_xclk = NULL;
- }
- if (tegra_pcie.pcie_mselect) {
- clk_put(tegra_pcie.pcie_mselect);
- tegra_pcie.pcie_mselect = NULL;
- }
-}
-
static int tegra_pcie_power_off(void)
{
int err = 0;
@@ -1320,7 +1290,6 @@ static int tegra_pcie_power_off(void)
clk_disable(tegra_pcie.pcie_mselect);
if (tegra_pcie.pcie_xclk)
clk_disable(tegra_pcie.pcie_xclk);
- tegra_pcie_clocks_put();
err = tegra_powergate_partition_with_clk_off(TEGRA_POWERGATE_PCIE);
if (err)
goto err_exit;
@@ -1338,6 +1307,32 @@ err_exit:
return err;
}
+static int tegra_pcie_clocks_get(void)
+{
+ PR_FUNC_LINE;
+ /* get the PCIEXCLK */
+ tegra_pcie.pcie_xclk = clk_get_sys("tegra_pcie", "pciex");
+ if (IS_ERR_OR_NULL(tegra_pcie.pcie_xclk)) {
+ pr_err("%s: unable to get PCIE Xclock\n", __func__);
+ return -EINVAL;
+ }
+ tegra_pcie.pcie_mselect = clk_get_sys("tegra_pcie", "mselect");
+ if (IS_ERR_OR_NULL(tegra_pcie.pcie_mselect)) {
+ pr_err("%s: unable to get PCIE mselect clock\n", __func__);
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static void tegra_pcie_clocks_put(void)
+{
+ PR_FUNC_LINE;
+ if (tegra_pcie.pcie_xclk)
+ clk_put(tegra_pcie.pcie_xclk);
+ if (tegra_pcie.pcie_mselect)
+ clk_put(tegra_pcie.pcie_mselect);
+}
+
static int tegra_pcie_get_resources(void)
{
int err;
@@ -1834,17 +1829,17 @@ static int __init tegra_pcie_init(void)
err = tegra_pcie_enable_pads(true);
if (err) {
pr_err("PCIE: enable pads failed\n");
- goto fail;
+ return err;
}
err = tegra_pcie_enable_controller();
if (err) {
pr_err("PCIE: enable controller failed\n");
- goto fail;
+ return err;
}
err = tegra_pcie_conf_gpios();
if (err) {
pr_err("PCIE: configuring gpios failed\n");
- goto fail;
+ return err;
}
/* setup the AFI address translations */
tegra_pcie_setup_translations();
@@ -1853,17 +1848,17 @@ static int __init tegra_pcie_init(void)
if (tegra_pcie.num_ports)
pci_common_init(&tegra_pcie_hw);
else {
- pr_err("PCIE: no ports detected\n");
- goto fail;
+ err = tegra_pcie_power_off();
+ if (err < 0) {
+ pr_err("Unable to power off pcie\n");
+ return err;
+ }
}
tegra_pcie_enable_features();
/* register pcie device as wakeup source */
device_init_wakeup(tegra_pcie.dev, true);
return 0;
-fail:
- tegra_pcie_power_off();
- return err;
}
static void tegra_pcie_read_plat_data(void)