* [PATCH v3 RESEND 1/2] drm/exynos: dp: Remove support for unused dptx-phy [not found] <000001cffe5c3df5500$%han@samsung.com> @ 2014-11-12 9:42 ` Vivek Gautam 2014-11-13 8:51 ` Inki Dae 0 siblings, 1 reply; 2+ messages in thread From: Vivek Gautam @ 2014-11-12 9:42 UTC (permalink / raw) To: dri-devel, linux-samsung-soc Cc: linux-kernel, kgene.kim, seanpaul, ajaykumar.rs, Vivek Gautam, Inki Dae Now that we have moved to generic phy based bindings, we don't need to have any code related to older dptx-phy. Nobody is using this dptx-phy anymore, so removing the same. Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com> Acked-by: Jingoo Han <jg1.han@samsung.com> Cc: Inki Dae <inki.dae@samsung.com> --- Problem with my mail client caused change in author's mail id. So resending it with authorship under my Samsung id. drivers/gpu/drm/exynos/exynos_dp_core.c | 74 +++++++------------------------ drivers/gpu/drm/exynos/exynos_dp_core.h | 2 - 2 files changed, 17 insertions(+), 59 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.c b/drivers/gpu/drm/exynos/exynos_dp_core.c index cd50ece..dbe9add 100644 --- a/drivers/gpu/drm/exynos/exynos_dp_core.c +++ b/drivers/gpu/drm/exynos/exynos_dp_core.c @@ -1052,28 +1052,14 @@ static int exynos_dp_create_connector(struct exynos_drm_display *display, static void exynos_dp_phy_init(struct exynos_dp_device *dp) { - if (dp->phy) { + if (dp->phy) phy_power_on(dp->phy); - } else if (dp->phy_addr) { - u32 reg; - - reg = __raw_readl(dp->phy_addr); - reg |= dp->enable_mask; - __raw_writel(reg, dp->phy_addr); - } } static void exynos_dp_phy_exit(struct exynos_dp_device *dp) { - if (dp->phy) { + if (dp->phy) phy_power_off(dp->phy); - } else if (dp->phy_addr) { - u32 reg; - - reg = __raw_readl(dp->phy_addr); - reg &= ~(dp->enable_mask); - __raw_writel(reg, dp->phy_addr); - } } static void exynos_dp_poweron(struct exynos_drm_display *display) @@ -1210,44 +1196,6 @@ static struct video_info *exynos_dp_dt_parse_pdata(struct device *dev) return dp_video_config; } -static int exynos_dp_dt_parse_phydata(struct exynos_dp_device *dp) -{ - struct device_node *dp_phy_node = of_node_get(dp->dev->of_node); - u32 phy_base; - int ret = 0; - - dp_phy_node = of_find_node_by_name(dp_phy_node, "dptx-phy"); - if (!dp_phy_node) { - dp->phy = devm_phy_get(dp->dev, "dp"); - return PTR_ERR_OR_ZERO(dp->phy); - } - - if (of_property_read_u32(dp_phy_node, "reg", &phy_base)) { - dev_err(dp->dev, "failed to get reg for dptx-phy\n"); - ret = -EINVAL; - goto err; - } - - if (of_property_read_u32(dp_phy_node, "samsung,enable-mask", - &dp->enable_mask)) { - dev_err(dp->dev, "failed to get enable-mask for dptx-phy\n"); - ret = -EINVAL; - goto err; - } - - dp->phy_addr = ioremap(phy_base, SZ_4); - if (!dp->phy_addr) { - dev_err(dp->dev, "failed to ioremap dp-phy\n"); - ret = -ENOMEM; - goto err; - } - -err: - of_node_put(dp_phy_node); - - return ret; -} - static int exynos_dp_dt_parse_panel(struct exynos_dp_device *dp) { int ret; @@ -1277,9 +1225,21 @@ static int exynos_dp_bind(struct device *dev, struct device *master, void *data) if (IS_ERR(dp->video_info)) return PTR_ERR(dp->video_info); - ret = exynos_dp_dt_parse_phydata(dp); - if (ret) - return ret; + dp->phy = devm_phy_get(dp->dev, "dp"); + if (IS_ERR(dp->phy)) { + dev_err(dp->dev, "no DP phy configured\n"); + ret = PTR_ERR(dp->phy); + if (ret) { + /* + * phy itself is not enabled, so we can move forward + * assigning NULL to phy pointer. + */ + if (ret == -ENOSYS || ret == -ENODEV) + dp->phy = NULL; + else + return ret; + } + } if (!dp->panel) { ret = exynos_dp_dt_parse_panel(dp); diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.h b/drivers/gpu/drm/exynos/exynos_dp_core.h index a1aee69..6426201 100644 --- a/drivers/gpu/drm/exynos/exynos_dp_core.h +++ b/drivers/gpu/drm/exynos/exynos_dp_core.h @@ -153,8 +153,6 @@ struct exynos_dp_device { struct clk *clock; unsigned int irq; void __iomem *reg_base; - void __iomem *phy_addr; - unsigned int enable_mask; struct video_info *video_info; struct link_train link_train; -- 1.7.9.5 ^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH v3 RESEND 1/2] drm/exynos: dp: Remove support for unused dptx-phy 2014-11-12 9:42 ` [PATCH v3 RESEND 1/2] drm/exynos: dp: Remove support for unused dptx-phy Vivek Gautam @ 2014-11-13 8:51 ` Inki Dae 0 siblings, 0 replies; 2+ messages in thread From: Inki Dae @ 2014-11-13 8:51 UTC (permalink / raw) To: Vivek Gautam Cc: dri-devel, linux-samsung-soc, linux-kernel, kgene.kim, seanpaul, ajaykumar.rs, cpgs . On 2014년 11월 12일 18:42, Vivek Gautam wrote: > Now that we have moved to generic phy based bindings, > we don't need to have any code related to older dptx-phy. > Nobody is using this dptx-phy anymore, so removing the > same. Applied. Thanks, Inki Dae > > Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com> > Acked-by: Jingoo Han <jg1.han@samsung.com> > Cc: Inki Dae <inki.dae@samsung.com> > --- > > Problem with my mail client caused change in author's mail id. > So resending it with authorship under my Samsung id. > > drivers/gpu/drm/exynos/exynos_dp_core.c | 74 +++++++------------------------ > drivers/gpu/drm/exynos/exynos_dp_core.h | 2 - > 2 files changed, 17 insertions(+), 59 deletions(-) > > diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.c b/drivers/gpu/drm/exynos/exynos_dp_core.c > index cd50ece..dbe9add 100644 > --- a/drivers/gpu/drm/exynos/exynos_dp_core.c > +++ b/drivers/gpu/drm/exynos/exynos_dp_core.c > @@ -1052,28 +1052,14 @@ static int exynos_dp_create_connector(struct exynos_drm_display *display, > > static void exynos_dp_phy_init(struct exynos_dp_device *dp) > { > - if (dp->phy) { > + if (dp->phy) > phy_power_on(dp->phy); > - } else if (dp->phy_addr) { > - u32 reg; > - > - reg = __raw_readl(dp->phy_addr); > - reg |= dp->enable_mask; > - __raw_writel(reg, dp->phy_addr); > - } > } > > static void exynos_dp_phy_exit(struct exynos_dp_device *dp) > { > - if (dp->phy) { > + if (dp->phy) > phy_power_off(dp->phy); > - } else if (dp->phy_addr) { > - u32 reg; > - > - reg = __raw_readl(dp->phy_addr); > - reg &= ~(dp->enable_mask); > - __raw_writel(reg, dp->phy_addr); > - } > } > > static void exynos_dp_poweron(struct exynos_drm_display *display) > @@ -1210,44 +1196,6 @@ static struct video_info *exynos_dp_dt_parse_pdata(struct device *dev) > return dp_video_config; > } > > -static int exynos_dp_dt_parse_phydata(struct exynos_dp_device *dp) > -{ > - struct device_node *dp_phy_node = of_node_get(dp->dev->of_node); > - u32 phy_base; > - int ret = 0; > - > - dp_phy_node = of_find_node_by_name(dp_phy_node, "dptx-phy"); > - if (!dp_phy_node) { > - dp->phy = devm_phy_get(dp->dev, "dp"); > - return PTR_ERR_OR_ZERO(dp->phy); > - } > - > - if (of_property_read_u32(dp_phy_node, "reg", &phy_base)) { > - dev_err(dp->dev, "failed to get reg for dptx-phy\n"); > - ret = -EINVAL; > - goto err; > - } > - > - if (of_property_read_u32(dp_phy_node, "samsung,enable-mask", > - &dp->enable_mask)) { > - dev_err(dp->dev, "failed to get enable-mask for dptx-phy\n"); > - ret = -EINVAL; > - goto err; > - } > - > - dp->phy_addr = ioremap(phy_base, SZ_4); > - if (!dp->phy_addr) { > - dev_err(dp->dev, "failed to ioremap dp-phy\n"); > - ret = -ENOMEM; > - goto err; > - } > - > -err: > - of_node_put(dp_phy_node); > - > - return ret; > -} > - > static int exynos_dp_dt_parse_panel(struct exynos_dp_device *dp) > { > int ret; > @@ -1277,9 +1225,21 @@ static int exynos_dp_bind(struct device *dev, struct device *master, void *data) > if (IS_ERR(dp->video_info)) > return PTR_ERR(dp->video_info); > > - ret = exynos_dp_dt_parse_phydata(dp); > - if (ret) > - return ret; > + dp->phy = devm_phy_get(dp->dev, "dp"); > + if (IS_ERR(dp->phy)) { > + dev_err(dp->dev, "no DP phy configured\n"); > + ret = PTR_ERR(dp->phy); > + if (ret) { > + /* > + * phy itself is not enabled, so we can move forward > + * assigning NULL to phy pointer. > + */ > + if (ret == -ENOSYS || ret == -ENODEV) > + dp->phy = NULL; > + else > + return ret; > + } > + } > > if (!dp->panel) { > ret = exynos_dp_dt_parse_panel(dp); > diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.h b/drivers/gpu/drm/exynos/exynos_dp_core.h > index a1aee69..6426201 100644 > --- a/drivers/gpu/drm/exynos/exynos_dp_core.h > +++ b/drivers/gpu/drm/exynos/exynos_dp_core.h > @@ -153,8 +153,6 @@ struct exynos_dp_device { > struct clk *clock; > unsigned int irq; > void __iomem *reg_base; > - void __iomem *phy_addr; > - unsigned int enable_mask; > > struct video_info *video_info; > struct link_train link_train; > ^ permalink raw reply [flat|nested] 2+ messages in thread
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2014-11-12 9:42 ` [PATCH v3 RESEND 1/2] drm/exynos: dp: Remove support for unused dptx-phy Vivek Gautam
2014-11-13 8:51 ` Inki Dae
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