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author | Zoltan HERPAI <wigyori@uid0.hu> | 2014-03-06 00:09:30 +0000 |
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committer | Zoltan HERPAI <wigyori@uid0.hu> | 2014-03-06 00:09:30 +0000 |
commit | a8ab50ee77d004e4a00cd6280cc1b542e57054b1 (patch) | |
tree | 0a2be71f002d9dd9084a172a72bef22388f0ca0e /target/linux/sunxi/patches-3.13/160-6-ahci-platform-support-optional-regulator.patch | |
parent | 8911fab5ade7400cdb42c43f884b4a10141c159e (diff) | |
download | master-187ad058-a8ab50ee77d004e4a00cd6280cc1b542e57054b1.tar.gz master-187ad058-a8ab50ee77d004e4a00cd6280cc1b542e57054b1.tar.bz2 master-187ad058-a8ab50ee77d004e4a00cd6280cc1b542e57054b1.zip |
sunxi: driver refresh for 3.13
- update gmac / mmc / usb / ahci drivers to follow mainline dev trees
- add driver for spi
- update clock support
- update a31 support
- move to new DT compats where appropriate
- re-order patchqueue where needed
- verified working a20 smp
- move most DTSes off files/
- update defconfig
Signed-off-by: Zoltan HERPAI <wigyori@uid0.hu>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39782 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/sunxi/patches-3.13/160-6-ahci-platform-support-optional-regulator.patch')
-rw-r--r-- | target/linux/sunxi/patches-3.13/160-6-ahci-platform-support-optional-regulator.patch | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/target/linux/sunxi/patches-3.13/160-6-ahci-platform-support-optional-regulator.patch b/target/linux/sunxi/patches-3.13/160-6-ahci-platform-support-optional-regulator.patch new file mode 100644 index 0000000000..fad0a7fae2 --- /dev/null +++ b/target/linux/sunxi/patches-3.13/160-6-ahci-platform-support-optional-regulator.patch @@ -0,0 +1,141 @@ +From ba6850946d9e1959be1b00f6ae06454546350c75 Mon Sep 17 00:00:00 2001 +From: Hans de Goede <hdegoede@redhat.com> +Date: Fri, 17 Jan 2014 13:23:21 +0100 +Subject: [PATCH] ahci-platform: Add support for an optional regulator for + sata-target power + +Signed-off-by: Hans de Goede <hdegoede@redhat.com> +--- + .../devicetree/bindings/ata/ahci-platform.txt | 1 + + drivers/ata/ahci.h | 2 ++ + drivers/ata/ahci_platform.c | 36 ++++++++++++++++++++-- + 3 files changed, 37 insertions(+), 2 deletions(-) + +diff --git a/Documentation/devicetree/bindings/ata/ahci-platform.txt b/Documentation/devicetree/bindings/ata/ahci-platform.txt +index 3ced07d..1ac807f 100644 +--- a/Documentation/devicetree/bindings/ata/ahci-platform.txt ++++ b/Documentation/devicetree/bindings/ata/ahci-platform.txt +@@ -11,6 +11,7 @@ Required properties: + Optional properties: + - dma-coherent : Present if dma operations are coherent + - clocks : a list of phandle + clock specifier pairs ++- target-supply : regulator for SATA target power + + Example: + sata@ffe08000 { +diff --git a/drivers/ata/ahci.h b/drivers/ata/ahci.h +index c12862b..bf8100c 100644 +--- a/drivers/ata/ahci.h ++++ b/drivers/ata/ahci.h +@@ -37,6 +37,7 @@ + + #include <linux/clk.h> + #include <linux/libata.h> ++#include <linux/regulator/consumer.h> + + /* Enclosure Management Control */ + #define EM_CTRL_MSG_TYPE 0x000f0000 +@@ -323,6 +324,7 @@ struct ahci_host_priv { + u32 em_buf_sz; /* EM buffer size in byte */ + u32 em_msg_type; /* EM message type */ + struct clk *clks[AHCI_MAX_CLKS]; /* Optional */ ++ struct regulator *target_pwr; /* Optional */ + void *plat_data; /* Other platform data */ + /* + * Optional ahci_start_engine override, if not set this gets set to the +diff --git a/drivers/ata/ahci_platform.c b/drivers/ata/ahci_platform.c +index 609975d..907c076 100644 +--- a/drivers/ata/ahci_platform.c ++++ b/drivers/ata/ahci_platform.c +@@ -192,6 +192,14 @@ static int ahci_probe(struct platform_device *pdev) + return -ENOMEM; + } + ++ hpriv->target_pwr = devm_regulator_get_optional(dev, "target"); ++ if (IS_ERR(hpriv->target_pwr)) { ++ rc = PTR_ERR(hpriv->target_pwr); ++ if (rc == -EPROBE_DEFER) ++ return -EPROBE_DEFER; ++ hpriv->target_pwr = NULL; ++ } ++ + for (i = 0; i < AHCI_MAX_CLKS; i++) { + /* + * For now we must use clk_get(dev, NULL) for the first clock, +@@ -213,9 +221,15 @@ static int ahci_probe(struct platform_device *pdev) + 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); + if (rc) +- goto free_clk; ++ goto disable_regulator; + + /* + * Some platforms might need to prepare for mmio region access, +@@ -298,6 +312,9 @@ static int ahci_probe(struct platform_device *pdev) + pdata->exit(dev); + disable_unprepare_clk: + ahci_disable_clks(hpriv); ++disable_regulator: ++ if (hpriv->target_pwr) ++ regulator_disable(hpriv->target_pwr); + free_clk: + ahci_put_clks(hpriv); + return rc; +@@ -314,6 +331,9 @@ static void ahci_host_stop(struct ata_host *host) + + ahci_disable_clks(hpriv); + ahci_put_clks(hpriv); ++ ++ if (hpriv->target_pwr) ++ regulator_disable(hpriv->target_pwr); + } + + #ifdef CONFIG_PM_SLEEP +@@ -350,6 +370,9 @@ static int ahci_suspend(struct device *dev) + + ahci_disable_clks(hpriv); + ++ if (hpriv->target_pwr) ++ regulator_disable(hpriv->target_pwr); ++ + return 0; + } + +@@ -360,9 +383,15 @@ static int ahci_resume(struct device *dev) + 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); + if (rc) +- return rc; ++ goto disable_regulator; + + if (pdata && pdata->resume) { + rc = pdata->resume(dev); +@@ -384,6 +413,9 @@ static int ahci_resume(struct device *dev) + + disable_unprepare_clk: + ahci_disable_clks(hpriv); ++disable_regulator: ++ if (hpriv->target_pwr) ++ regulator_disable(hpriv->target_pwr); + + return rc; + } +-- +1.8.5.5 + |