提交 d5bae6f3 编写于 作者: T Thierry Reding

drm/tegra: output: Make ->setup_clock() optional

In order to transition output drivers to using the struct tegra_output
as a helper rather than midlayer, make this callback optional. Instead
drivers should implement the equivalent as part of ->mode_fixup(). For
the conversion to atomic modesetting a new callback ->atomic_check()
should be implemented that updates the display controller's state with
the corresponding parent clock, rate and shift clock divider.
Signed-off-by: NThierry Reding <treding@nvidia.com>
上级 132085d8
master alk-4.19.24 alk-4.19.30 alk-4.19.34 alk-4.19.36 alk-4.19.43 alk-4.19.48 alk-4.19.57 ck-4.19.67 ck-4.19.81 ck-4.19.91 github/fork/deepanshu1422/fix-typo-in-comment github/fork/haosdent/fix-typo linux-next v4.19.91 v4.19.90 v4.19.89 v4.19.88 v4.19.87 v4.19.86 v4.19.85 v4.19.84 v4.19.83 v4.19.82 v4.19.81 v4.19.80 v4.19.79 v4.19.78 v4.19.77 v4.19.76 v4.19.75 v4.19.74 v4.19.73 v4.19.72 v4.19.71 v4.19.70 v4.19.69 v4.19.68 v4.19.67 v4.19.66 v4.19.65 v4.19.64 v4.19.63 v4.19.62 v4.19.61 v4.19.60 v4.19.59 v4.19.58 v4.19.57 v4.19.56 v4.19.55 v4.19.54 v4.19.53 v4.19.52 v4.19.51 v4.19.50 v4.19.49 v4.19.48 v4.19.47 v4.19.46 v4.19.45 v4.19.44 v4.19.43 v4.19.42 v4.19.41 v4.19.40 v4.19.39 v4.19.38 v4.19.37 v4.19.36 v4.19.35 v4.19.34 v4.19.33 v4.19.32 v4.19.31 v4.19.30 v4.19.29 v4.19.28 v4.19.27 v4.19.26 v4.19.25 v4.19.24 v4.19.23 v4.19.22 v4.19.21 v4.19.20 v4.19.19 v4.19.18 v4.19.17 v4.19.16 v4.19.15 v4.19.14 v4.19.13 v4.19.12 v4.19.11 v4.19.10 v4.19.9 v4.19.8 v4.19.7 v4.19.6 v4.19.5 v4.19.4 v4.19.3 v4.19.2 v4.19.1 v4.19 v4.19-rc8 v4.19-rc7 v4.19-rc6 v4.19-rc5 v4.19-rc4 v4.19-rc3 v4.19-rc2 v4.19-rc1 ck-release-21 ck-release-20 ck-release-19.2 ck-release-19.1 ck-release-19 ck-release-18 ck-release-17.2 ck-release-17.1 ck-release-17 ck-release-16 ck-release-15.1 ck-release-15 ck-release-14 ck-release-13.2 ck-release-13 ck-release-12 ck-release-11 ck-release-10 ck-release-9 ck-release-7 alk-release-15 alk-release-14 alk-release-13.2 alk-release-13 alk-release-12 alk-release-11 alk-release-10 alk-release-9 alk-release-7
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......@@ -1066,11 +1066,19 @@ static int tegra_crtc_setup_clk(struct drm_crtc *crtc,
if (!output)
return -ENODEV;
/*
* The ->setup_clock() callback is optional, but if encoders don't
* implement it they most likely need to do the equivalent within the
* ->mode_fixup() callback.
*/
if (!output->ops || !output->ops->setup_clock)
return 0;
/*
* This assumes that the parent clock is pll_d_out0 or pll_d2_out
* respectively, each of which divides the base pll_d by 2.
*/
err = tegra_output_setup_clock(output, dc->clk, pclk, &div);
err = output->ops->setup_clock(output, dc->clk, pclk, &div);
if (err < 0) {
dev_err(dc->dev, "failed to setup clock: %ld\n", err);
return err;
......
......@@ -240,16 +240,6 @@ static inline int tegra_output_disable(struct tegra_output *output)
return output ? -ENOSYS : -EINVAL;
}
static inline int tegra_output_setup_clock(struct tegra_output *output,
struct clk *clk, unsigned long pclk,
unsigned int *div)
{
if (output && output->ops && output->ops->setup_clock)
return output->ops->setup_clock(output, clk, pclk, div);
return output ? -ENOSYS : -EINVAL;
}
static inline int tegra_output_check_mode(struct tegra_output *output,
struct drm_display_mode *mode,
enum drm_mode_status *status)
......
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