From 6daeadcf2a9bcc3b74fa2eccc0b76a16fedb2ddc Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Thu, 4 Apr 2013 14:13:51 +0200 Subject: [PATCH] video: exynos_dsi: Use generic PHY driver Use the generic PHY API instead of the platform callback to control the MIPI DSIM DPHY. Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park --- drivers/video/display/source-exynos_dsi.c | 36 ++++++++++--------------------- include/video/exynos_dsi.h | 5 ----- 2 files changed, 11 insertions(+), 30 deletions(-) diff --git a/drivers/video/display/source-exynos_dsi.c b/drivers/video/display/source-exynos_dsi.c index d7094f4..d36162f 100644 --- a/drivers/video/display/source-exynos_dsi.c +++ b/drivers/video/display/source-exynos_dsi.c @@ -24,6 +24,7 @@ #include #include #include +#include #include #include #include @@ -219,6 +220,7 @@ struct exynos_dsi { bool enabled; struct platform_device *pdev; + struct phy *phy; struct device *dev; struct resource *res; struct clk *pll_clk; @@ -816,6 +818,7 @@ again: static bool exynos_dsi_transfer_finish(struct exynos_dsi *dsi) { + static unsigned long j; struct exynos_dsi_transfer *xfer; unsigned long flags; bool start = true; @@ -824,7 +827,8 @@ static bool exynos_dsi_transfer_finish(struct exynos_dsi *dsi) if (list_empty(&dsi->transfer_list)) { spin_unlock_irqrestore(&dsi->transfer_lock, flags); - dev_warn(dsi->dev, "unexpected TX/RX interrupt\n"); + if (printk_timed_ratelimit(&j, 500)) + dev_warn(dsi->dev, "unexpected TX/RX interrupt\n"); return false; } @@ -996,8 +1000,7 @@ static int exynos_dsi_enable(struct video_source *src) clk_prepare_enable(dsi->bus_clk); clk_prepare_enable(dsi->pll_clk); - if (dsi->pd->phy_enable) - dsi->pd->phy_enable(dsi->pdev, true); + phy_power_on(dsi->phy); exynos_dsi_reset(dsi); exynos_dsi_init_link(dsi); @@ -1022,8 +1025,7 @@ static int exynos_dsi_disable(struct video_source *src) exynos_dsi_disable_clock(dsi); - if (dsi->pd->phy_enable) - dsi->pd->phy_enable(dsi->pdev, false); + phy_power_off(dsi->phy); clk_disable_unprepare(dsi->pll_clk); clk_disable_unprepare(dsi->bus_clk); @@ -1104,12 +1106,6 @@ static const struct dsi_video_source_ops exynos_dsi_ops = { * Device Tree */ -static int (* const of_phy_enables[])(struct platform_device *, bool) = { -#ifdef CONFIG_S5P_SETUP_MIPIPHY - [0] = s5p_dsim_phy_enable, -#endif -}; - static struct exynos_dsi_platform_data *exynos_dsi_parse_dt( struct platform_device *pdev) { @@ -1117,7 +1113,6 @@ static struct exynos_dsi_platform_data *exynos_dsi_parse_dt( struct exynos_dsi_platform_data *dsi_pd; struct device *dev = &pdev->dev; const __be32 *prop_data; - u32 val; dsi_pd = kzalloc(sizeof(*dsi_pd), GFP_KERNEL); if (!dsi_pd) { @@ -1125,19 +1120,6 @@ static struct exynos_dsi_platform_data *exynos_dsi_parse_dt( return NULL; } - prop_data = of_get_property(node, "samsung,phy-type", NULL); - if (!prop_data) { - dev_err(dev, "failed to get phy-type property\n"); - goto err_free_pd; - } - - val = be32_to_cpu(*prop_data); - if (val >= ARRAY_SIZE(of_phy_enables) || !of_phy_enables[val]) { - dev_err(dev, "Invalid phy-type %u\n", val); - goto err_free_pd; - } - dsi_pd->phy_enable = of_phy_enables[val]; - prop_data = of_get_property(node, "samsung,pll-stable-time", NULL); if (!prop_data) { dev_err(dev, "failed to get pll-stable-time property\n"); @@ -1259,6 +1241,10 @@ static int exynos_dsi_probe(struct platform_device *pdev) return -ENOMEM; } + dsi->phy = devm_phy_get(&pdev->dev, "dsim"); + if (IS_ERR(dsi->phy)) + return PTR_ERR(dsi->phy); + platform_set_drvdata(pdev, dsi); dsi->irq = platform_get_irq(pdev, 0); diff --git a/include/video/exynos_dsi.h b/include/video/exynos_dsi.h index 95e1568..5c062c7 100644 --- a/include/video/exynos_dsi.h +++ b/include/video/exynos_dsi.h @@ -25,9 +25,6 @@ */ struct exynos_dsi_platform_data { unsigned int enabled; - - int (*phy_enable)(struct platform_device *pdev, bool on); - unsigned int pll_stable_time; unsigned long pll_clk_rate; unsigned long esc_clk_rate; @@ -36,6 +33,4 @@ struct exynos_dsi_platform_data { unsigned short rx_timeout; }; -int s5p_dsim_phy_enable(struct platform_device *pdev, bool on); - #endif /* _EXYNOS_MIPI_DSIM_H */ -- 2.7.4