da8xx-fb: do not turn ON LCD backlight unless LCDC is enabled
LCD blink is observed during suspend/resume and blank/unblank operations as backlight is ON during LCDC disable and enable. So make sure to turn OFF backlight before disabling and turn it ON after enabling. Signed-off-by: Manjunathappa, Prakash <prakash.pm@ti.com> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
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@ -1038,10 +1038,10 @@ static int cfb_blank(int blank, struct fb_info *info)
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par->blank = blank;
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switch (blank) {
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case FB_BLANK_UNBLANK:
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lcd_enable_raster();
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if (par->panel_power_ctrl)
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par->panel_power_ctrl(1);
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lcd_enable_raster();
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break;
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case FB_BLANK_NORMAL:
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case FB_BLANK_VSYNC_SUSPEND:
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@ -1422,11 +1422,12 @@ static int fb_resume(struct platform_device *dev)
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struct da8xx_fb_par *par = info->par;
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console_lock();
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clk_enable(par->lcdc_clk);
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lcd_enable_raster();
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if (par->panel_power_ctrl)
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par->panel_power_ctrl(1);
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clk_enable(par->lcdc_clk);
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lcd_enable_raster();
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fb_set_suspend(info, 0);
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console_unlock();
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