diff options
Diffstat (limited to 'drivers/video/mxc/tve.c')
| -rw-r--r-- | drivers/video/mxc/tve.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/video/mxc/tve.c b/drivers/video/mxc/tve.c index b32110c91128..061d65a7cd20 100644 --- a/drivers/video/mxc/tve.c +++ b/drivers/video/mxc/tve.c @@ -222,6 +222,7 @@ static int tve_setup(int mode) u32 reg; struct clk *pll3_clk; unsigned long pll3_clock_rate = 216000000; + struct clk *ipu_di0_clk; if (tve.cur_mode == mode) return 0; @@ -241,6 +242,13 @@ static int tve_setup(int mode) clk_disable(tve.clk); pll3_clk = clk_get(NULL, "pll3"); + ipu_di0_clk = clk_get(NULL, "ipu_di0_clk"); + if ((clk_get_parent(ipu_di0_clk) == pll3_clk) && + (clk_get_rate(pll3_clk) != pll3_clock_rate)) { + printk(KERN_INFO "Cannot setup TV since display is using PLL3\n"); + return -EINVAL; + } + clk_disable(pll3_clk); clk_set_rate(pll3_clk, pll3_clock_rate); clk_enable(pll3_clk); |