diff options
Diffstat (limited to 'drivers/video/tegra/dc/dc_priv.h')
-rw-r--r-- | drivers/video/tegra/dc/dc_priv.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/video/tegra/dc/dc_priv.h b/drivers/video/tegra/dc/dc_priv.h index 4f53f60f2599..06f2a6061bf6 100644 --- a/drivers/video/tegra/dc/dc_priv.h +++ b/drivers/video/tegra/dc/dc_priv.h @@ -32,6 +32,7 @@ #include "../host/host1x/host1x_syncpt.h" #include <mach/tegra_dc_ext.h> +#include <mach/clk.h> #define WIN_IS_TILED(win) ((win)->flags & TEGRA_WIN_FLAG_TILED) #define WIN_IS_ENABLED(win) ((win)->flags & TEGRA_WIN_FLAG_ENABLED) @@ -164,6 +165,9 @@ static inline unsigned long tegra_dc_readl(struct tegra_dc *dc, unsigned long ret; BUG_ON(!nvhost_module_powered(nvhost_get_host(dc->ndev)->dev)); + if (!tegra_is_clk_enabled(dc->clk)) + WARN(1, "DC is clock-gated.\n"); + ret = readl(dc->base + reg * 4); trace_printk("readl %p=%#08lx\n", dc->base + reg * 4, ret); return ret; @@ -173,6 +177,9 @@ static inline void tegra_dc_writel(struct tegra_dc *dc, unsigned long val, unsigned long reg) { BUG_ON(!nvhost_module_powered(nvhost_get_host(dc->ndev)->dev)); + if (!tegra_is_clk_enabled(dc->clk)) + WARN(1, "DC is clock-gated.\n"); + trace_printk("writel %p=%#08lx\n", dc->base + reg * 4, val); writel(val, dc->base + reg * 4); } |