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drm/exynos: enable FIMD clocks

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Common Clock Framework introduced the need to prepare clocks before
enabling them, otherwise clk_enable() fails. This patch adds clk_prepare_enable
and clk_disable_unprepare() calls to the driver.
This patch also removes clk_disable() from fimd_remove() as it will be done
by pm_runtime_put_sync.

Signed-off-by: Vikas Sajjan <[email protected]>
Signed-off-by: Inki Dae <[email protected]>
This commit is contained in:
Vikas Sajjan 2013-04-23 17:19:50 +05:30 • committed by Inki Dae
commit 11963a638f
1 changed files with 5 additions and 8 deletions
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13
drivers/gpu/drm/exynos/exynos_drm_fimd.c
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@ -801,18 +801,18 @@ static int fimd_clock(struct fimd_context *ctx, bool enable)
if (enable) {
int ret;
ret = clk_enable(ctx->bus_clk);
ret = clk_prepare_enable(ctx->bus_clk);
if (ret < 0)
return ret;
ret = clk_enable(ctx->lcd_clk);
ret = clk_prepare_enable(ctx->lcd_clk);
if (ret < 0) {
clk_disable(ctx->bus_clk);
clk_disable_unprepare(ctx->bus_clk);
return ret;
}
} else {
clk_disable(ctx->lcd_clk);
clk_disable(ctx->bus_clk);
clk_disable_unprepare(ctx->lcd_clk);
clk_disable_unprepare(ctx->bus_clk);
}
return 0;
@ -996,9 +996,6 @@ static int fimd_remove(struct platform_device *pdev)
if (ctx->suspended)
goto out;
clk_disable(ctx->lcd_clk);
clk_disable(ctx->bus_clk);
pm_runtime_set_suspended(dev);
pm_runtime_put_sync(dev);