diff options
Diffstat (limited to 'drivers/amba/bus.c')
-rw-r--r-- | drivers/amba/bus.c | 42 |
1 files changed, 1 insertions, 41 deletions
diff --git a/drivers/amba/bus.c b/drivers/amba/bus.c index 01c2cf4efcdd..cc273226dbd0 100644 --- a/drivers/amba/bus.c +++ b/drivers/amba/bus.c | |||
@@ -247,8 +247,7 @@ static int amba_pm_restore(struct device *dev) | |||
247 | /* | 247 | /* |
248 | * Hooks to provide runtime PM of the pclk (bus clock). It is safe to | 248 | * Hooks to provide runtime PM of the pclk (bus clock). It is safe to |
249 | * enable/disable the bus clock at runtime PM suspend/resume as this | 249 | * enable/disable the bus clock at runtime PM suspend/resume as this |
250 | * does not result in loss of context. However, disabling vcore power | 250 | * does not result in loss of context. |
251 | * would do, so we leave that to the driver. | ||
252 | */ | 251 | */ |
253 | static int amba_pm_runtime_suspend(struct device *dev) | 252 | static int amba_pm_runtime_suspend(struct device *dev) |
254 | { | 253 | { |
@@ -354,39 +353,6 @@ static void amba_put_disable_pclk(struct amba_device *pcdev) | |||
354 | clk_put(pclk); | 353 | clk_put(pclk); |
355 | } | 354 | } |
356 | 355 | ||
357 | static int amba_get_enable_vcore(struct amba_device *pcdev) | ||
358 | { | ||
359 | struct regulator *vcore = regulator_get(&pcdev->dev, "vcore"); | ||
360 | int ret; | ||
361 | |||
362 | pcdev->vcore = vcore; | ||
363 | |||
364 | if (IS_ERR(vcore)) { | ||
365 | /* It is OK not to supply a vcore regulator */ | ||
366 | if (PTR_ERR(vcore) == -ENODEV) | ||
367 | return 0; | ||
368 | return PTR_ERR(vcore); | ||
369 | } | ||
370 | |||
371 | ret = regulator_enable(vcore); | ||
372 | if (ret) { | ||
373 | regulator_put(vcore); | ||
374 | pcdev->vcore = ERR_PTR(-ENODEV); | ||
375 | } | ||
376 | |||
377 | return ret; | ||
378 | } | ||
379 | |||
380 | static void amba_put_disable_vcore(struct amba_device *pcdev) | ||
381 | { | ||
382 | struct regulator *vcore = pcdev->vcore; | ||
383 | |||
384 | if (!IS_ERR(vcore)) { | ||
385 | regulator_disable(vcore); | ||
386 | regulator_put(vcore); | ||
387 | } | ||
388 | } | ||
389 | |||
390 | /* | 356 | /* |
391 | * These are the device model conversion veneers; they convert the | 357 | * These are the device model conversion veneers; they convert the |
392 | * device model structures to our more specific structures. | 358 | * device model structures to our more specific structures. |
@@ -399,10 +365,6 @@ static int amba_probe(struct device *dev) | |||
399 | int ret; | 365 | int ret; |
400 | 366 | ||
401 | do { | 367 | do { |
402 | ret = amba_get_enable_vcore(pcdev); | ||
403 | if (ret) | ||
404 | break; | ||
405 | |||
406 | ret = amba_get_enable_pclk(pcdev); | 368 | ret = amba_get_enable_pclk(pcdev); |
407 | if (ret) | 369 | if (ret) |
408 | break; | 370 | break; |
@@ -420,7 +382,6 @@ static int amba_probe(struct device *dev) | |||
420 | pm_runtime_put_noidle(dev); | 382 | pm_runtime_put_noidle(dev); |
421 | 383 | ||
422 | amba_put_disable_pclk(pcdev); | 384 | amba_put_disable_pclk(pcdev); |
423 | amba_put_disable_vcore(pcdev); | ||
424 | } while (0); | 385 | } while (0); |
425 | 386 | ||
426 | return ret; | 387 | return ret; |
@@ -442,7 +403,6 @@ static int amba_remove(struct device *dev) | |||
442 | pm_runtime_put_noidle(dev); | 403 | pm_runtime_put_noidle(dev); |
443 | 404 | ||
444 | amba_put_disable_pclk(pcdev); | 405 | amba_put_disable_pclk(pcdev); |
445 | amba_put_disable_vcore(pcdev); | ||
446 | 406 | ||
447 | return ret; | 407 | return ret; |
448 | } | 408 | } |