From patchwork Sat Apr 21 12:10:11 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [V2,3/5] ata: pata_arasan: add Device Tree probing capability Date: Sat, 21 Apr 2012 02:10:11 -0000 From: viresh kumar X-Patchwork-Id: 154210 Message-Id: To: jgarzik@redhat.com Cc: spear-devel@list.st.com, viresh.linux@gmail.com, linux-ide@vger.kernel.org, sshtylyov@mvista.com, Viresh Kumar SPEAr platforms now support DT and so must convert all drivers to support DT. This patch adds DT probing support for Arasan Compact Flash controller and updates its documentation too. Signed-off-by: Viresh Kumar --- .../devicetree/bindings/ata/pata-arasan.txt | 17 +++++++++++++++++ drivers/ata/pata_arasan_cf.c | 10 ++++++++++ 2 files changed, 27 insertions(+), 0 deletions(-) create mode 100644 Documentation/devicetree/bindings/ata/pata-arasan.txt diff --git a/Documentation/devicetree/bindings/ata/pata-arasan.txt b/Documentation/devicetree/bindings/ata/pata-arasan.txt new file mode 100644 index 0000000..95ec7f8 --- /dev/null +++ b/Documentation/devicetree/bindings/ata/pata-arasan.txt @@ -0,0 +1,17 @@ +* ARASAN PATA COMPACT FLASH CONTROLLER + +Required properties: +- compatible: "arasan,cf-spear1340" +- reg: Address range of the CF registers +- interrupt-parent: Should be the phandle for the interrupt controller + that services interrupts for this device +- interrupt: Should contain the CF interrupt number + +Example: + + cf@fc000000 { + compatible = "arasan,cf-spear1340"; + reg = <0xfc000000 0x1000>; + interrupt-parent = <&vic1>; + interrupts = <12>; + }; diff --git a/drivers/ata/pata_arasan_cf.c b/drivers/ata/pata_arasan_cf.c index aa3b4d4..24b6fa8 100644 --- a/drivers/ata/pata_arasan_cf.c +++ b/drivers/ata/pata_arasan_cf.c @@ -31,6 +31,7 @@ #include #include #include +#include #include #include #include @@ -940,6 +941,14 @@ static int arasan_cf_resume(struct device *dev) static SIMPLE_DEV_PM_OPS(arasan_cf_pm_ops, arasan_cf_suspend, arasan_cf_resume); +#ifdef CONFIG_OF +static const struct of_device_id arasan_cf_id_table[] = { + { .compatible = "arasan,cf-spear1340" }, + {} +}; +MODULE_DEVICE_TABLE(of, arasan_cf_id_table); +#endif + static struct platform_driver arasan_cf_driver = { .probe = arasan_cf_probe, .remove = __devexit_p(arasan_cf_remove), @@ -947,6 +956,7 @@ static struct platform_driver arasan_cf_driver = { .name = DRIVER_NAME, .owner = THIS_MODULE, .pm = &arasan_cf_pm_ops, + .of_match_table = of_match_ptr(arasan_cf_id_table), }, };