On 10/07/2013 02:34 AM, Thierry Reding wrote:
From: Mikko Perttunen mperttunen@nvidia.com
Tegra114 TMDS configuration requires a new peak_current field and the driver current override bit has changed position.
diff --git a/drivers/gpu/drm/tegra/hdmi.c b/drivers/gpu/drm/tegra/hdmi.c
static const struct tmds_config tegra2_tmds_config[] = { @@ -223,6 +224,85 @@ static const struct tmds_config tegra3_tmds_config[] = {
Not related to this patch, but those should have been named tegra20_tmds_config[] and tegra30_tmds_config[].
static void tegra_hdmi_setup_tmds(struct tegra_hdmi *hdmi,
- value = tmds->drive_current | DRIVE_CURRENT_FUSE_OVERRIDE;
- tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_LANE_DRIVE_CURRENT);
- if (of_device_is_compatible(np, "nvidia,tegra114-hdmi")) {
Let's not check this at run-time. Instead, host1x_drm_subdevs[]'s .data field should be used to contain either flags or a pointer to a configuration structure, either of which can be directly consulted to determine the properties of the HW in a feature-oriented/semantic way.
drivers/gpio/gpio-tegra.c's tegra20_gpio_config/tegra30_gpio_config/tegra_gpio_of_match provide a good example of this.
This means that if Tegra124 is identical to Tegra114, yet a hypothetical Tegra999 is different, you don't have to keep adjusting these if conditions throughout the code; they can simply refer to the same feature bit forever.