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Commit 402f6bcd authored by Thierry Reding's avatar Thierry Reding
Browse files

drm/tegra: sor: Split out tegra_sor_apply_config() 



This function is useful in both eDP and DP modes, so split it out in
anticipation of adding DP support.

Signed-off-by: default avatarThierry Reding <treding@nvidia.com>
parent a198359e

drivers/gpu/drm/tegra/sor.c

+43 −34
Original line number Diff line number Diff line
@@ -678,6 +678,46 @@ static int tegra_sor_compute_config(struct tegra_sor *sor, 
	return 0;

}



static void tegra_sor_apply_config(struct tegra_sor *sor,

				   const struct tegra_sor_config *config)

{

	u32 value;



	value = tegra_sor_readl(sor, SOR_DP_LINKCTL0);

	value &= ~SOR_DP_LINKCTL_TU_SIZE_MASK;

	value |= SOR_DP_LINKCTL_TU_SIZE(config->tu_size);

	tegra_sor_writel(sor, value, SOR_DP_LINKCTL0);



	value = tegra_sor_readl(sor, SOR_DP_CONFIG0);

	value &= ~SOR_DP_CONFIG_WATERMARK_MASK;

	value |= SOR_DP_CONFIG_WATERMARK(config->watermark);



	value &= ~SOR_DP_CONFIG_ACTIVE_SYM_COUNT_MASK;

	value |= SOR_DP_CONFIG_ACTIVE_SYM_COUNT(config->active_count);



	value &= ~SOR_DP_CONFIG_ACTIVE_SYM_FRAC_MASK;

	value |= SOR_DP_CONFIG_ACTIVE_SYM_FRAC(config->active_frac);



	if (config->active_polarity)

		value |= SOR_DP_CONFIG_ACTIVE_SYM_POLARITY;

	else

		value &= ~SOR_DP_CONFIG_ACTIVE_SYM_POLARITY;



	value |= SOR_DP_CONFIG_ACTIVE_SYM_ENABLE;

	value |= SOR_DP_CONFIG_DISPARITY_NEGATIVE;

	tegra_sor_writel(sor, value, SOR_DP_CONFIG0);



	value = tegra_sor_readl(sor, SOR_DP_AUDIO_HBLANK_SYMBOLS);

	value &= ~SOR_DP_AUDIO_HBLANK_SYMBOLS_MASK;

	value |= config->hblank_symbols & 0xffff;

	tegra_sor_writel(sor, value, SOR_DP_AUDIO_HBLANK_SYMBOLS);



	value = tegra_sor_readl(sor, SOR_DP_AUDIO_VBLANK_SYMBOLS);

	value &= ~SOR_DP_AUDIO_VBLANK_SYMBOLS_MASK;

	value |= config->vblank_symbols & 0xffff;

	tegra_sor_writel(sor, value, SOR_DP_AUDIO_VBLANK_SYMBOLS);

}



static int tegra_sor_detach(struct tegra_sor *sor)

{

	unsigned long value, timeout;
@@ -1393,13 +1433,11 @@ static void tegra_sor_edp_enable(struct drm_encoder *encoder) 
	value |= drm_dp_link_rate_to_bw_code(link.rate) << 2;

	tegra_sor_writel(sor, value, SOR_CLK_CNTRL);



	/* set linkctl */

	tegra_sor_apply_config(sor, &config);



	/* enable link */

	value = tegra_sor_readl(sor, SOR_DP_LINKCTL0);

	value |= SOR_DP_LINKCTL_ENABLE;



	value &= ~SOR_DP_LINKCTL_TU_SIZE_MASK;

	value |= SOR_DP_LINKCTL_TU_SIZE(config.tu_size);



	value |= SOR_DP_LINKCTL_ENHANCED_FRAME;

	tegra_sor_writel(sor, value, SOR_DP_LINKCTL0);
@@ -1412,35 +1450,6 @@ static void tegra_sor_edp_enable(struct drm_encoder *encoder) 


	tegra_sor_writel(sor, value, SOR_DP_TPG);



	value = tegra_sor_readl(sor, SOR_DP_CONFIG0);

	value &= ~SOR_DP_CONFIG_WATERMARK_MASK;

	value |= SOR_DP_CONFIG_WATERMARK(config.watermark);



	value &= ~SOR_DP_CONFIG_ACTIVE_SYM_COUNT_MASK;

	value |= SOR_DP_CONFIG_ACTIVE_SYM_COUNT(config.active_count);



	value &= ~SOR_DP_CONFIG_ACTIVE_SYM_FRAC_MASK;

	value |= SOR_DP_CONFIG_ACTIVE_SYM_FRAC(config.active_frac);



	if (config.active_polarity)

		value |= SOR_DP_CONFIG_ACTIVE_SYM_POLARITY;

	else

		value &= ~SOR_DP_CONFIG_ACTIVE_SYM_POLARITY;



	value |= SOR_DP_CONFIG_ACTIVE_SYM_ENABLE;

	value |= SOR_DP_CONFIG_DISPARITY_NEGATIVE;

	tegra_sor_writel(sor, value, SOR_DP_CONFIG0);



	value = tegra_sor_readl(sor, SOR_DP_AUDIO_HBLANK_SYMBOLS);

	value &= ~SOR_DP_AUDIO_HBLANK_SYMBOLS_MASK;

	value |= config.hblank_symbols & 0xffff;

	tegra_sor_writel(sor, value, SOR_DP_AUDIO_HBLANK_SYMBOLS);



	value = tegra_sor_readl(sor, SOR_DP_AUDIO_VBLANK_SYMBOLS);

	value &= ~SOR_DP_AUDIO_VBLANK_SYMBOLS_MASK;

	value |= config.vblank_symbols & 0xffff;

	tegra_sor_writel(sor, value, SOR_DP_AUDIO_VBLANK_SYMBOLS);



	/* enable pad calibration logic */

	value = tegra_sor_readl(sor, SOR_DP_PADCTL0);

	value |= SOR_DP_PADCTL_PAD_CAL_PD;