diff options
Diffstat (limited to 'target/linux/ipq806x/patches/0112-ahci-platform-Add-enable_-disable_resources-helper-f.patch')
| -rw-r--r-- | target/linux/ipq806x/patches/0112-ahci-platform-Add-enable_-disable_resources-helper-f.patch | 201 |
1 files changed, 0 insertions, 201 deletions
diff --git a/target/linux/ipq806x/patches/0112-ahci-platform-Add-enable_-disable_resources-helper-f.patch b/target/linux/ipq806x/patches/0112-ahci-platform-Add-enable_-disable_resources-helper-f.patch deleted file mode 100644 index 888ee324f8..0000000000 --- a/target/linux/ipq806x/patches/0112-ahci-platform-Add-enable_-disable_resources-helper-f.patch +++ /dev/null @@ -1,201 +0,0 @@ -From 3b2df84624b38362cb84c2d4c6d1d3540c5069d3 Mon Sep 17 00:00:00 2001 -From: Hans de Goede <hdegoede@redhat.com> -Date: Sat, 22 Feb 2014 16:53:33 +0100 -Subject: [PATCH 112/182] ahci-platform: Add enable_ / disable_resources - helper functions - -tj: Minor comment formatting updates. - -Signed-off-by: Hans de Goede <hdegoede@redhat.com> -Signed-off-by: Tejun Heo <tj@kernel.org> ---- - drivers/ata/ahci_platform.c | 106 +++++++++++++++++++++++++++-------------- - include/linux/ahci_platform.h | 2 + - 2 files changed, 71 insertions(+), 37 deletions(-) - ---- a/drivers/ata/ahci_platform.c -+++ b/drivers/ata/ahci_platform.c -@@ -133,6 +133,62 @@ void ahci_platform_disable_clks(struct a - } - EXPORT_SYMBOL_GPL(ahci_platform_disable_clks); - -+/** -+ * ahci_platform_enable_resources - Enable platform resources -+ * @hpriv: host private area to store config values -+ * -+ * This function enables all ahci_platform managed resources in the -+ * following order: -+ * 1) Regulator -+ * 2) Clocks (through ahci_platform_enable_clks) -+ * -+ * If resource enabling fails at any point the previous enabled resources -+ * are disabled in reverse order. -+ * -+ * RETURNS: -+ * 0 on success otherwise a negative error code -+ */ -+int ahci_platform_enable_resources(struct ahci_host_priv *hpriv) -+{ -+ int rc; -+ -+ if (hpriv->target_pwr) { -+ rc = regulator_enable(hpriv->target_pwr); -+ if (rc) -+ return rc; -+ } -+ -+ rc = ahci_platform_enable_clks(hpriv); -+ if (rc) -+ goto disable_regulator; -+ -+ return 0; -+ -+disable_regulator: -+ if (hpriv->target_pwr) -+ regulator_disable(hpriv->target_pwr); -+ return rc; -+} -+EXPORT_SYMBOL_GPL(ahci_platform_enable_resources); -+ -+/** -+ * ahci_platform_disable_resources - Disable platform resources -+ * @hpriv: host private area to store config values -+ * -+ * This function disables all ahci_platform managed resources in the -+ * following order: -+ * 1) Clocks (through ahci_platform_disable_clks) -+ * 2) Regulator -+ */ -+void ahci_platform_disable_resources(struct ahci_host_priv *hpriv) -+{ -+ ahci_platform_disable_clks(hpriv); -+ -+ if (hpriv->target_pwr) -+ regulator_disable(hpriv->target_pwr); -+} -+EXPORT_SYMBOL_GPL(ahci_platform_disable_resources); -+ - static void ahci_put_clks(struct ahci_host_priv *hpriv) - { - int c; -@@ -215,15 +271,9 @@ static int ahci_probe(struct platform_de - hpriv->clks[i] = clk; - } - -- if (hpriv->target_pwr) { -- rc = regulator_enable(hpriv->target_pwr); -- if (rc) -- goto free_clk; -- } -- -- rc = ahci_enable_clks(dev, hpriv); -+ rc = ahci_platform_enable_resources(hpriv); - if (rc) -- goto disable_regulator; -+ goto free_clk; - - /* - * Some platforms might need to prepare for mmio region access, -@@ -234,7 +284,7 @@ static int ahci_probe(struct platform_de - if (pdata && pdata->init) { - rc = pdata->init(dev, hpriv->mmio); - if (rc) -- goto disable_unprepare_clk; -+ goto disable_resources; - } - - ahci_save_initial_config(dev, hpriv, -@@ -304,11 +354,8 @@ static int ahci_probe(struct platform_de - pdata_exit: - if (pdata && pdata->exit) - pdata->exit(dev); --disable_unprepare_clk: -- ahci_disable_clks(hpriv); --disable_regulator: -- if (hpriv->target_pwr) -- regulator_disable(hpriv->target_pwr); -+disable_resources: -+ ahci_platform_disable_resources(hpriv); - free_clk: - ahci_put_clks(hpriv); - return rc; -@@ -323,11 +370,8 @@ static void ahci_host_stop(struct ata_ho - if (pdata && pdata->exit) - pdata->exit(dev); - -- ahci_disable_clks(hpriv); -+ ahci_platform_disable_resources(hpriv); - ahci_put_clks(hpriv); -- -- if (hpriv->target_pwr) -- regulator_disable(hpriv->target_pwr); - } - - #ifdef CONFIG_PM_SLEEP -@@ -362,10 +406,7 @@ static int ahci_suspend(struct device *d - if (pdata && pdata->suspend) - return pdata->suspend(dev); - -- ahci_disable_clks(hpriv); -- -- if (hpriv->target_pwr) -- regulator_disable(hpriv->target_pwr); -+ ahci_platform_disable_resources(hpriv); - - return 0; - } -@@ -377,26 +418,20 @@ static int ahci_resume(struct device *de - struct ahci_host_priv *hpriv = host->private_data; - int rc; - -- if (hpriv->target_pwr) { -- rc = regulator_enable(hpriv->target_pwr); -- if (rc) -- return rc; -- } -- -- rc = ahci_enable_clks(dev, hpriv); -+ rc = ahci_platform_enable_resources(hpriv); - if (rc) -- goto disable_regulator; -+ return rc; - - if (pdata && pdata->resume) { - rc = pdata->resume(dev); - if (rc) -- goto disable_unprepare_clk; -+ goto disable_resources; - } - - if (dev->power.power_state.event == PM_EVENT_SUSPEND) { - rc = ahci_reset_controller(host); - if (rc) -- goto disable_unprepare_clk; -+ goto disable_resources; - - ahci_init_controller(host); - } -@@ -405,11 +440,8 @@ static int ahci_resume(struct device *de - - return 0; - --disable_unprepare_clk: -- ahci_disable_clks(hpriv); --disable_regulator: -- if (hpriv->target_pwr) -- regulator_disable(hpriv->target_pwr); -+disable_resources: -+ ahci_platform_disable_resources(hpriv); - - return rc; - } ---- a/include/linux/ahci_platform.h -+++ b/include/linux/ahci_platform.h -@@ -33,5 +33,7 @@ struct ahci_platform_data { - - int ahci_platform_enable_clks(struct ahci_host_priv *hpriv); - void ahci_platform_disable_clks(struct ahci_host_priv *hpriv); -+int ahci_platform_enable_resources(struct ahci_host_priv *hpriv); -+void ahci_platform_disable_resources(struct ahci_host_priv *hpriv); - - #endif /* _AHCI_PLATFORM_H */ |