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authorLinus Torvalds <torvalds@linux-foundation.org>2012-10-01 21:28:06 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2012-10-01 21:28:06 -0400
commit2a2bf85f05e42b12ea6bfe821e2d19221cf93555 (patch)
tree11abcdaef6e4f8307574056998d306d21558b6ed /drivers/gpio/gpio-twl4030.c
parent11801e9de26992d37cb869cc74f389b6a7677e0e (diff)
parent99261fbad0a16f105b262d7525801697588ba526 (diff)
Merge tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM soc device tree updates from Olof Johansson: "Device tree conversion and enablement branch. Mostly a bunch of new bindings and setup for various platforms, but the Via/Winchip VT8500 platform is also converted over from being 100% legacy to now use device tree for probing. More of that will come for 3.8." Trivial conflicts due to removal of vt8500 files, and one documentation file that was added with slightly different contents both here and in the USb tree. * tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (212 commits) arm: vt8500: Fixup for missing gpio.h ARM: LPC32xx: LED fix in PHY3250 DTS file ARM: dt: mmp-dma: add binding file arm: vt8500: Update arch-vt8500 to devicetree support. arm: vt8500: gpio: Devicetree support for arch-vt8500 arm: vt8500: doc: Add device tree bindings for arch-vt8500 devices arm: vt8500: clk: Add Common Clock Framework support video: vt8500: Add devicetree support for vt8500-fb and wm8505-fb serial: vt8500: Add devicetree support for vt8500-serial rtc: vt8500: Add devicetree support for vt8500-rtc arm: vt8500: Add device tree files for VIA/Wondermedia SoC's ARM: tegra: Add Avionic Design Tamonten Evaluation Carrier support ARM: tegra: Add Avionic Design Medcom-Wide support ARM: tegra: Add Avionic Design Plutux support ARM: tegra: Add Avionic Design Tamonten support ARM: tegra: dts: Add pwm label ARM: ux500: Fix SSP register address format ARM: ux500: Apply tc3589x's GPIO/IRQ properties to HREF's DT ARM: ux500: Remove redundant #gpio-cell properties from Snowball DT ARM: ux500: Add all encompassing sound node to the HREF Device Tree ...
Diffstat (limited to 'drivers/gpio/gpio-twl4030.c')
-rw-r--r--drivers/gpio/gpio-twl4030.c77
1 files changed, 52 insertions, 25 deletions
diff --git a/drivers/gpio/gpio-twl4030.c b/drivers/gpio/gpio-twl4030.c
index f030880bc9bb..c5f8ca233e1f 100644
--- a/drivers/gpio/gpio-twl4030.c
+++ b/drivers/gpio/gpio-twl4030.c
@@ -396,6 +396,29 @@ static int __devinit gpio_twl4030_debounce(u32 debounce, u8 mmc_cd)
396 396
397static int gpio_twl4030_remove(struct platform_device *pdev); 397static int gpio_twl4030_remove(struct platform_device *pdev);
398 398
399static struct twl4030_gpio_platform_data *of_gpio_twl4030(struct device *dev)
400{
401 struct twl4030_gpio_platform_data *omap_twl_info;
402
403 omap_twl_info = devm_kzalloc(dev, sizeof(*omap_twl_info), GFP_KERNEL);
404 if (!omap_twl_info)
405 return NULL;
406
407 omap_twl_info->use_leds = of_property_read_bool(dev->of_node,
408 "ti,use-leds");
409
410 of_property_read_u32(dev->of_node, "ti,debounce",
411 &omap_twl_info->debounce);
412 of_property_read_u32(dev->of_node, "ti,mmc-cd",
413 (u32 *)&omap_twl_info->mmc_cd);
414 of_property_read_u32(dev->of_node, "ti,pullups",
415 &omap_twl_info->pullups);
416 of_property_read_u32(dev->of_node, "ti,pulldowns",
417 &omap_twl_info->pulldowns);
418
419 return omap_twl_info;
420}
421
399static int __devinit gpio_twl4030_probe(struct platform_device *pdev) 422static int __devinit gpio_twl4030_probe(struct platform_device *pdev)
400{ 423{
401 struct twl4030_gpio_platform_data *pdata = pdev->dev.platform_data; 424 struct twl4030_gpio_platform_data *pdata = pdev->dev.platform_data;
@@ -428,33 +451,37 @@ no_irqs:
428 twl_gpiochip.ngpio = TWL4030_GPIO_MAX; 451 twl_gpiochip.ngpio = TWL4030_GPIO_MAX;
429 twl_gpiochip.dev = &pdev->dev; 452 twl_gpiochip.dev = &pdev->dev;
430 453
431 if (pdata) { 454 if (node)
432 /* 455 pdata = of_gpio_twl4030(&pdev->dev);
433 * NOTE: boards may waste power if they don't set pullups 456
434 * and pulldowns correctly ... default for non-ULPI pins is 457 if (pdata == NULL) {
435 * pulldown, and some other pins may have external pullups 458 dev_err(&pdev->dev, "Platform data is missing\n");
436 * or pulldowns. Careful! 459 return -ENXIO;
437 */
438 ret = gpio_twl4030_pulls(pdata->pullups, pdata->pulldowns);
439 if (ret)
440 dev_dbg(&pdev->dev, "pullups %.05x %.05x --> %d\n",
441 pdata->pullups, pdata->pulldowns,
442 ret);
443
444 ret = gpio_twl4030_debounce(pdata->debounce, pdata->mmc_cd);
445 if (ret)
446 dev_dbg(&pdev->dev, "debounce %.03x %.01x --> %d\n",
447 pdata->debounce, pdata->mmc_cd,
448 ret);
449
450 /*
451 * NOTE: we assume VIBRA_CTL.VIBRA_EN, in MODULE_AUDIO_VOICE,
452 * is (still) clear if use_leds is set.
453 */
454 if (pdata->use_leds)
455 twl_gpiochip.ngpio += 2;
456 } 460 }
457 461
462 /*
463 * NOTE: boards may waste power if they don't set pullups
464 * and pulldowns correctly ... default for non-ULPI pins is
465 * pulldown, and some other pins may have external pullups
466 * or pulldowns. Careful!
467 */
468 ret = gpio_twl4030_pulls(pdata->pullups, pdata->pulldowns);
469 if (ret)
470 dev_dbg(&pdev->dev, "pullups %.05x %.05x --> %d\n",
471 pdata->pullups, pdata->pulldowns, ret);
472
473 ret = gpio_twl4030_debounce(pdata->debounce, pdata->mmc_cd);
474 if (ret)
475 dev_dbg(&pdev->dev, "debounce %.03x %.01x --> %d\n",
476 pdata->debounce, pdata->mmc_cd, ret);
477
478 /*
479 * NOTE: we assume VIBRA_CTL.VIBRA_EN, in MODULE_AUDIO_VOICE,
480 * is (still) clear if use_leds is set.
481 */
482 if (pdata->use_leds)
483 twl_gpiochip.ngpio += 2;
484
458 ret = gpiochip_add(&twl_gpiochip); 485 ret = gpiochip_add(&twl_gpiochip);
459 if (ret < 0) { 486 if (ret < 0) {
460 dev_err(&pdev->dev, "could not register gpiochip, %d\n", ret); 487 dev_err(&pdev->dev, "could not register gpiochip, %d\n", ret);