From: zain wang wzz@rock-chips.com
There are some different bits between Rockchip and Exynos in register "AUX_PD". This patch fixes the incorrect operations about it.
Cc: Douglas Anderson dianders@chromium.org Signed-off-by: zain wang wzz@rock-chips.com Signed-off-by: Sean Paul seanpaul@chromium.org Signed-off-by: Thierry Escande thierry.escande@collabora.com Reviewed-by: Andrzej Hajda a.hajda@samsung.com --- drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c | 117 ++++++++++++---------- drivers/gpu/drm/bridge/analogix/analogix_dp_reg.h | 2 + 2 files changed, 65 insertions(+), 54 deletions(-)
diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c index bb72f8b0e603..dee1ba109b5f 100644 --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c @@ -248,76 +248,85 @@ void analogix_dp_set_analog_power_down(struct analogix_dp_device *dp, { u32 reg; u32 phy_pd_addr = ANALOGIX_DP_PHY_PD; + u32 mask;
if (dp->plat_data && is_rockchip(dp->plat_data->dev_type)) phy_pd_addr = ANALOGIX_DP_PD;
switch (block) { case AUX_BLOCK: - if (enable) { - reg = readl(dp->reg_base + phy_pd_addr); - reg |= AUX_PD; - writel(reg, dp->reg_base + phy_pd_addr); - } else { - reg = readl(dp->reg_base + phy_pd_addr); - reg &= ~AUX_PD; - writel(reg, dp->reg_base + phy_pd_addr); - } + if (dp->plat_data && is_rockchip(dp->plat_data->dev_type)) + mask = RK_AUX_PD; + else + mask = AUX_PD; + + reg = readl(dp->reg_base + phy_pd_addr); + if (enable) + reg |= mask; + else + reg &= ~mask; + writel(reg, dp->reg_base + phy_pd_addr); break; case CH0_BLOCK: - if (enable) { - reg = readl(dp->reg_base + phy_pd_addr); - reg |= CH0_PD; - writel(reg, dp->reg_base + phy_pd_addr); - } else { - reg = readl(dp->reg_base + phy_pd_addr); - reg &= ~CH0_PD; - writel(reg, dp->reg_base + phy_pd_addr); - } + mask = CH0_PD; + reg = readl(dp->reg_base + phy_pd_addr); + + if (enable) + reg |= mask; + else + reg &= ~mask; + writel(reg, dp->reg_base + phy_pd_addr); break; case CH1_BLOCK: - if (enable) { - reg = readl(dp->reg_base + phy_pd_addr); - reg |= CH1_PD; - writel(reg, dp->reg_base + phy_pd_addr); - } else { - reg = readl(dp->reg_base + phy_pd_addr); - reg &= ~CH1_PD; - writel(reg, dp->reg_base + phy_pd_addr); - } + mask = CH1_PD; + reg = readl(dp->reg_base + phy_pd_addr); + + if (enable) + reg |= mask; + else + reg &= ~mask; + writel(reg, dp->reg_base + phy_pd_addr); break; case CH2_BLOCK: - if (enable) { - reg = readl(dp->reg_base + phy_pd_addr); - reg |= CH2_PD; - writel(reg, dp->reg_base + phy_pd_addr); - } else { - reg = readl(dp->reg_base + phy_pd_addr); - reg &= ~CH2_PD; - writel(reg, dp->reg_base + phy_pd_addr); - } + mask = CH2_PD; + reg = readl(dp->reg_base + phy_pd_addr); + + if (enable) + reg |= mask; + else + reg &= ~mask; + writel(reg, dp->reg_base + phy_pd_addr); break; case CH3_BLOCK: - if (enable) { - reg = readl(dp->reg_base + phy_pd_addr); - reg |= CH3_PD; - writel(reg, dp->reg_base + phy_pd_addr); - } else { - reg = readl(dp->reg_base + phy_pd_addr); - reg &= ~CH3_PD; - writel(reg, dp->reg_base + phy_pd_addr); - } + mask = CH3_PD; + reg = readl(dp->reg_base + phy_pd_addr); + + if (enable) + reg |= mask; + else + reg &= ~mask; + writel(reg, dp->reg_base + phy_pd_addr); break; case ANALOG_TOTAL: - if (enable) { - reg = readl(dp->reg_base + phy_pd_addr); - reg |= DP_PHY_PD; - writel(reg, dp->reg_base + phy_pd_addr); - } else { - reg = readl(dp->reg_base + phy_pd_addr); - reg &= ~DP_PHY_PD; - writel(reg, dp->reg_base + phy_pd_addr); - } + /* + * There is no bit named DP_PHY_PD, so We used DP_INC_BG + * to power off everything instead of DP_PHY_PD in + * Rockchip + */ + if (dp->plat_data && is_rockchip(dp->plat_data->dev_type)) + mask = DP_INC_BG; + else + mask = DP_PHY_PD; + + reg = readl(dp->reg_base + phy_pd_addr); + if (enable) + reg |= mask; + else + reg &= ~mask; + + writel(reg, dp->reg_base + phy_pd_addr); + if (dp->plat_data && is_rockchip(dp->plat_data->dev_type)) + usleep_range(10, 15); break; case POWER_ALL: if (enable) { diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.h b/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.h index 9602668669f4..b633a4a5082a 100644 --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.h +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.h @@ -345,7 +345,9 @@ #define DP_INC_BG (0x1 << 7) #define DP_EXP_BG (0x1 << 6) #define DP_PHY_PD (0x1 << 5) +#define RK_AUX_PD (0x1 << 5) #define AUX_PD (0x1 << 4) +#define RK_PLL_PD (0x1 << 4) #define CH3_PD (0x1 << 3) #define CH2_PD (0x1 << 2) #define CH1_PD (0x1 << 1)