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authorLinus Torvalds <torvalds@linux-foundation.org>2012-05-26 12:42:29 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-05-26 12:42:29 -0700
commit27953437059c64d14086196eb96f43c78caa9db3 (patch)
tree0cfd5fb21262a6db3de0c64462847b4c0c43e9df /drivers/ata
parent2c757fd5d1a92086f225a75a8fac7cab242d11b0 (diff)
parent3c0dec5f58b3c7b3627715126d1bf9b030a076f0 (diff)
downloadlinux-27953437059c64d14086196eb96f43c78caa9db3.tar.bz2
Merge tag 'clock' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull arm-soc clock driver changes from Olof Johansson: "The new clock subsystem was merged in linux-3.4 without any users, this now moves the first three platforms over to it: imx, mxs and spear. The series also contains the changes for the clock subsystem itself, since Mike preferred to have it together with the platforms that require these changes, in order to avoid interdependencies and conflicts." Fix up trivial conflicts in arch/arm/mach-kirkwood/common.c (code removed in one branch, added OF support in another) and drivers/dma/imx-sdma.c (independent changes next to each other). * tag 'clock' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (97 commits) clk: Fix CLK_SET_RATE_GATE flag validation in clk_set_rate(). clk: Provide dummy clk_unregister() SPEAr: Update defconfigs SPEAr: Add SMI NOR partition info in dts files SPEAr: Switch to common clock framework SPEAr: Call clk_prepare() before calling clk_enable SPEAr: clk: Add General Purpose Timer Synthesizer clock SPEAr: clk: Add Fractional Synthesizer clock SPEAr: clk: Add Auxiliary Synthesizer clock SPEAr: clk: Add VCO-PLL Synthesizer clock SPEAr: Add DT bindings for SPEAr's timer ARM i.MX: remove now unused clock files ARM: i.MX6: implement clocks using common clock framework ARM i.MX35: implement clocks using common clock framework ARM i.MX5: implement clocks using common clock framework ARM: Kirkwood: Replace clock gating ARM: Orion: Audio: Add clk/clkdev support ARM: Orion: PCIE: Add support for clk ARM: Orion: XOR: Add support for clk ARM: Orion: CESA: Add support for clk ...
Diffstat (limited to 'drivers/ata')
-rw-r--r--drivers/ata/sata_mv.c40
1 files changed, 36 insertions, 4 deletions
diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c
index 7336d4a7ab31..24712adf69df 100644
--- a/drivers/ata/sata_mv.c
+++ b/drivers/ata/sata_mv.c
@@ -553,6 +553,7 @@ struct mv_host_priv {
#if defined(CONFIG_HAVE_CLK)
struct clk *clk;
+ struct clk **port_clks;
#endif
/*
* These consistent DMA memory pools give us guaranteed
@@ -4027,6 +4028,9 @@ static int mv_platform_probe(struct platform_device *pdev)
struct resource *res;
int n_ports = 0;
int rc;
+#if defined(CONFIG_HAVE_CLK)
+ int port;
+#endif
ata_print_version_once(&pdev->dev, DRV_VERSION);
@@ -4054,6 +4058,13 @@ static int mv_platform_probe(struct platform_device *pdev)
if (!host || !hpriv)
return -ENOMEM;
+#if defined(CONFIG_HAVE_CLK)
+ hpriv->port_clks = devm_kzalloc(&pdev->dev,
+ sizeof(struct clk *) * n_ports,
+ GFP_KERNEL);
+ if (!hpriv->port_clks)
+ return -ENOMEM;
+#endif
host->private_data = hpriv;
hpriv->n_ports = n_ports;
hpriv->board_idx = chip_soc;
@@ -4066,9 +4077,17 @@ static int mv_platform_probe(struct platform_device *pdev)
#if defined(CONFIG_HAVE_CLK)
hpriv->clk = clk_get(&pdev->dev, NULL);
if (IS_ERR(hpriv->clk))
- dev_notice(&pdev->dev, "cannot get clkdev\n");
+ dev_notice(&pdev->dev, "cannot get optional clkdev\n");
else
- clk_enable(hpriv->clk);
+ clk_prepare_enable(hpriv->clk);
+
+ for (port = 0; port < n_ports; port++) {
+ char port_number[16];
+ sprintf(port_number, "%d", port);
+ hpriv->port_clks[port] = clk_get(&pdev->dev, port_number);
+ if (!IS_ERR(hpriv->port_clks[port]))
+ clk_prepare_enable(hpriv->port_clks[port]);
+ }
#endif
/*
@@ -4098,9 +4117,15 @@ static int mv_platform_probe(struct platform_device *pdev)
err:
#if defined(CONFIG_HAVE_CLK)
if (!IS_ERR(hpriv->clk)) {
- clk_disable(hpriv->clk);
+ clk_disable_unprepare(hpriv->clk);
clk_put(hpriv->clk);
}
+ for (port = 0; port < n_ports; port++) {
+ if (!IS_ERR(hpriv->port_clks[port])) {
+ clk_disable_unprepare(hpriv->port_clks[port]);
+ clk_put(hpriv->port_clks[port]);
+ }
+ }
#endif
return rc;
@@ -4119,14 +4144,21 @@ static int __devexit mv_platform_remove(struct platform_device *pdev)
struct ata_host *host = platform_get_drvdata(pdev);
#if defined(CONFIG_HAVE_CLK)
struct mv_host_priv *hpriv = host->private_data;
+ int port;
#endif
ata_host_detach(host);
#if defined(CONFIG_HAVE_CLK)
if (!IS_ERR(hpriv->clk)) {
- clk_disable(hpriv->clk);
+ clk_disable_unprepare(hpriv->clk);
clk_put(hpriv->clk);
}
+ for (port = 0; port < host->n_ports; port++) {
+ if (!IS_ERR(hpriv->port_clks[port])) {
+ clk_disable_unprepare(hpriv->port_clks[port]);
+ clk_put(hpriv->port_clks[port]);
+ }
+ }
#endif
return 0;
}