diff options
| author | Manjunathappa, Prakash <prakash.pm@ti.com> | 2012-09-21 21:20:57 +0530 |
|---|---|---|
| committer | Florian Tobias Schandinat <FlorianSchandinat@gmx.de> | 2012-10-10 02:04:26 +0000 |
| commit | 9dd44d5d2305862e61bf610b343658db38d9bd76 (patch) | |
| tree | acf02bd6a526b83597db86ea0d1f5de2f0a403ae /drivers/video/da8xx-fb.c | |
| parent | b8c4321f3d194469007f5f5f2b34ec278c264a04 (diff) | |
da8xx-fb: add pm_runtime support
Add pm_runtime support to the da8xx-fb frame buffer driver.
Signed-off-by: Manjunathappa, Prakash <prakash.pm@ti.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Diffstat (limited to 'drivers/video/da8xx-fb.c')
| -rw-r--r-- | drivers/video/da8xx-fb.c | 27 |
1 files changed, 13 insertions, 14 deletions
diff --git a/drivers/video/da8xx-fb.c b/drivers/video/da8xx-fb.c index af2aa387ec1..4280d23e330 100644 --- a/drivers/video/da8xx-fb.c +++ b/drivers/video/da8xx-fb.c @@ -26,6 +26,7 @@ #include <linux/device.h> #include <linux/platform_device.h> #include <linux/uaccess.h> +#include <linux/pm_runtime.h> #include <linux/interrupt.h> #include <linux/wait.h> #include <linux/clk.h> @@ -1037,8 +1038,8 @@ static int __devexit fb_remove(struct platform_device *dev) dma_free_coherent(NULL, par->vram_size, par->vram_virt, par->vram_phys); free_irq(par->irq, par); - clk_disable(par->lcdc_clk); - clk_put(par->lcdc_clk); + pm_runtime_put_sync(&dev->dev); + pm_runtime_disable(&dev->dev); framebuffer_release(info); iounmap((void __iomem *)da8xx_fb_reg_base); release_mem_region(lcdc_regs->start, resource_size(lcdc_regs)); @@ -1272,9 +1273,9 @@ static int __devinit fb_probe(struct platform_device *device) ret = -ENODEV; goto err_ioremap; } - ret = clk_enable(fb_clk); - if (ret) - goto err_clk_put; + + pm_runtime_enable(&device->dev); + pm_runtime_get_sync(&device->dev); /* Determine LCD IP Version */ switch (lcdc_read(LCD_PID_REG)) { @@ -1302,7 +1303,7 @@ static int __devinit fb_probe(struct platform_device *device) if (i == ARRAY_SIZE(known_lcd_panels)) { dev_err(&device->dev, "GLCD: No valid panel found\n"); ret = -ENODEV; - goto err_clk_disable; + goto err_pm_runtime_disable; } else dev_info(&device->dev, "GLCD: Found %s panel\n", fb_pdata->type); @@ -1314,7 +1315,7 @@ static int __devinit fb_probe(struct platform_device *device) if (!da8xx_fb_info) { dev_dbg(&device->dev, "Memory allocation failed for fb_info\n"); ret = -ENOMEM; - goto err_clk_disable; + goto err_pm_runtime_disable; } par = da8xx_fb_info->par; @@ -1476,11 +1477,9 @@ err_release_fb_mem: err_release_fb: framebuffer_release(da8xx_fb_info); -err_clk_disable: - clk_disable(fb_clk); - -err_clk_put: - clk_put(fb_clk); +err_pm_runtime_disable: + pm_runtime_put_sync(&device->dev); + pm_runtime_disable(&device->dev); err_ioremap: iounmap((void __iomem *)da8xx_fb_reg_base); @@ -1503,7 +1502,7 @@ static int fb_suspend(struct platform_device *dev, pm_message_t state) fb_set_suspend(info, 1); lcd_disable_raster(true); - clk_disable(par->lcdc_clk); + pm_runtime_put_sync(&dev->dev); console_unlock(); return 0; @@ -1514,7 +1513,7 @@ static int fb_resume(struct platform_device *dev) struct da8xx_fb_par *par = info->par; console_lock(); - clk_enable(par->lcdc_clk); + pm_runtime_get_sync(&dev->dev); if (par->blank == FB_BLANK_UNBLANK) { lcd_enable_raster(); |