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ir-rx51: add DT support to driver

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With the upcoming removal of legacy boot, lets add support to one of the
last N900 drivers remaining without it. As the driver still uses omap
dmtimer, add auxdata as well.

Signed-off-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Ivaylo Dimitrov 2016-06-22 22:22:20 +03:00 committed by Tony Lindgren
parent 3fdd1526e6
commit b540617698
3 changed files with 31 additions and 6 deletions
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20
Documentation/devicetree/bindings/media/nokia,n900-ir Normal file
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@ -0,0 +1,20 @@
Device-Tree bindings for LIRC TX driver for Nokia N900(RX51)
Required properties:
- compatible: should be "nokia,n900-ir".
- pwms: specifies PWM used for IR signal transmission.
Example node:
pwm9: dmtimer-pwm@9 {
compatible = "ti,omap-dmtimer-pwm";
ti,timers = <&timer9>;
ti,clock-source = <0x00>; /* timer_sys_ck */
#pwm-cells = <3>;
};
ir: n900-ir {
compatible = "nokia,n900-ir";
pwms = <&pwm9 0 26316 0>; /* 38000 Hz */
};

6
arch/arm/mach-omap2/pdata-quirks.c
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@ -273,8 +273,6 @@ static struct platform_device omap3_rom_rng_device = {
},
};
static struct platform_device rx51_lirc_device;
static void __init nokia_n900_legacy_init(void)
{
hsmmc2_internal_input_clk();
@ -293,10 +291,7 @@ static void __init nokia_n900_legacy_init(void)
pr_info("RX-51: Registering OMAP3 HWRNG device\n");
platform_device_register(&omap3_rom_rng_device);
}
platform_device_register(&rx51_lirc_device);
}
static void __init omap3_tao3530_legacy_init(void)
@ -531,6 +526,7 @@ static struct of_dev_auxdata omap_auxdata_lookup[] __initdata = {
&omap3_iommu_pdata),
OF_DEV_AUXDATA("ti,omap3-hsmmc", 0x4809c000, "4809c000.mmc", &mmc_pdata[0]),
OF_DEV_AUXDATA("ti,omap3-hsmmc", 0x480b4000, "480b4000.mmc", &mmc_pdata[1]),
OF_DEV_AUXDATA("nokia,n900-ir", 0, "n900-ir", &rx51_lirc_data),
/* Only on am3517 */
OF_DEV_AUXDATA("ti,davinci_mdio", 0x5c030000, "davinci_mdio.0", NULL),
OF_DEV_AUXDATA("ti,am3517-emac", 0x5c000000, "davinci_emac.0",

11
drivers/media/rc/ir-rx51.c
View File

@ -21,6 +21,7 @@
#include <linux/sched.h>
#include <linux/wait.h>
#include <linux/pwm.h>
#include <linux/of.h>
#include <media/lirc.h>
#include <media/lirc_dev.h>
@ -478,6 +479,14 @@ static int lirc_rx51_remove(struct platform_device *dev)
return lirc_unregister_driver(lirc_rx51_driver.minor);
}
static const struct of_device_id lirc_rx51_match[] = {
{
.compatible = "nokia,n900-ir",
},
{},
};
MODULE_DEVICE_TABLE(of, lirc_rx51_match);
struct platform_driver lirc_rx51_platform_driver = {
.probe = lirc_rx51_probe,
.remove = lirc_rx51_remove,
@ -485,7 +494,7 @@ struct platform_driver lirc_rx51_platform_driver = {
.resume = lirc_rx51_resume,
.driver = {
.name = DRIVER_NAME,
.owner = THIS_MODULE,
.of_match_table = of_match_ptr(lirc_rx51_match),
},
};
module_platform_driver(lirc_rx51_platform_driver);