Re: [PATCH v4 9/9] drm/exynos: add support for 'hdmi' clock

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Hello,

On 2015-01-22 14:00, Fabio Estevam wrote:
On Tue, Jan 20, 2015 at 10:16 AM, Marek Szyprowski
<m.szyprowski@xxxxxxxxxxx> wrote:

+       mixer_res->hdmi = devm_clk_get(dev, "hdmi");
+       if (IS_ERR(mixer_res->hdmi)) {
+               dev_err(dev, "failed to get clock 'hdmi'\n");
+               return -ENODEV;
'return PTR_ERR(mixer_res->hdmi);' would be better.

ok.


+       }
+
         mixer_res->sclk_hdmi = devm_clk_get(dev, "sclk_hdmi");
         if (IS_ERR(mixer_res->sclk_hdmi)) {
                 dev_err(dev, "failed to get clock 'sclk_hdmi'\n");
@@ -1095,6 +1102,7 @@ static void mixer_poweron(struct exynos_drm_manager *mgr)
         pm_runtime_get_sync(ctx->dev);

         clk_prepare_enable(res->mixer);
+       clk_prepare_enable(res->hdmi);
Better check whether clk_prepare_enable failed.

This will be handled by a separate patch, because checking for error values from
clk_repare_enable is missing almost all over the Exynos DRM driver.

Best regards
--
Marek Szyprowski, PhD
Samsung R&D Institute Poland

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