| Message ID | 1374475767-30085-2-git-send-email-chanho61.park@samsung.com (mailing list archive) |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
> -----Original Message----- > From: linux-samsung-soc-owner@vger.kernel.org [mailto:linux-samsung-soc- > owner@vger.kernel.org] On Behalf Of Chanho Park > Sent: Monday, July 22, 2013 3:49 PM > To: inki.dae@samsung.com; kgene.kim@samsung.com > Cc: jy0922.shim@samsung.com; sw0312.kim@samsung.com; > kyungmin.park@samsung.com; dri-devel@lists.freedesktop.org; linux-samsung- > soc@vger.kernel.org; linux-arm-kernel@lists.infradead.org; devicetree- > discuss@lists.ozlabs.org; Chanho Park > Subject: [PATCH 1/3] drm/exynos: add device tree support for rotator > > The exynos4 platform is only dt-based since 3.10, we should convert driver > data > and ids to dt-based parsing methods. The rotator driver has a limit table > to get > size limit. The minimum size of RGB888 format is 8 x 8 and maximum size is > 8K x > 8K. The other format, YCbCr420 2-Plane has 32 x 32 min size and 32K x 32K > max > size. Each format should be multiple of 'align' value. > > Signed-off-by: Chanho Park <chanho61.park@samsung.com> > Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> > --- > drivers/gpu/drm/exynos/exynos_drm_rotator.c | 110 +++++++++++++++++++--- > ----- > 1 file changed, 80 insertions(+), 30 deletions(-) > > diff --git a/drivers/gpu/drm/exynos/exynos_drm_rotator.c > b/drivers/gpu/drm/exynos/exynos_drm_rotator.c > index 427640a..b353a10 100644 > --- a/drivers/gpu/drm/exynos/exynos_drm_rotator.c > +++ b/drivers/gpu/drm/exynos/exynos_drm_rotator.c > @@ -96,7 +96,7 @@ struct rot_context { > struct resource *regs_res; > void __iomem *regs; > struct clk *clock; > - struct rot_limit_table *limit_tbl; > + struct rot_limit_table limit_tbl; > int irq; > int cur_buf_id[EXYNOS_DRM_OPS_MAX]; > bool suspended; > @@ -167,7 +167,7 @@ static irqreturn_t rotator_irq_handler(int irq, void > *arg) > static void rotator_align_size(struct rot_context *rot, u32 fmt, u32 > *hsize, > u32 *vsize) > { > - struct rot_limit_table *limit_tbl = rot->limit_tbl; > + struct rot_limit_table *limit_tbl = &rot->limit_tbl; > struct rot_limit *limit; > u32 mask, val; > > @@ -632,6 +632,72 @@ static int rotator_ippdrv_start(struct device *dev, > enum drm_exynos_ipp_cmd cmd) > return 0; > } > > +static const struct of_device_id exynos_rotator_match[] = { > + { > + .compatible = "samsung,exynos4210-rotator", > + }, > + {}, > +}; > +MODULE_DEVICE_TABLE(of, exynos_rotator_match); Rotator device cannot be plugged in. Please remove the above MODULE_DEVICE_TABLE. > + > +static int rotator_parse_dt_tbl(struct device_node *np, struct rot_limit > *rlim) > +{ > + int ret; > + > + ret = of_property_read_u32(np, "min_w", &rlim->min_w); > + if (ret) > + return ret; > + > + ret = of_property_read_u32(np, "min_h", &rlim->min_h); > + if (ret) > + return ret; > + > + ret = of_property_read_u32(np, "max_w", &rlim->max_w); > + if (ret) > + return ret; > + > + ret = of_property_read_u32(np, "max_h", &rlim->max_h); > + if (ret) > + return ret; > + > + ret = of_property_read_u32(np, "align", &rlim->align); > + if (ret) > + return ret; > + > + return 0; > +} > + > +static int rotator_parse_dt(struct device *dev, struct rot_context *rot) > +{ > + struct device_node *ycbcr_node, *rgb888_node; > + int ret; > + > + ycbcr_node = of_get_child_by_name(dev->of_node, "ycbcr420_2p"); > + if (!ycbcr_node) { > + dev_err(dev, "can't find ycbcr420_2p node\n"); > + return -ENODEV; > + } > + > + rgb888_node = of_get_child_by_name(dev->of_node, "rgb888"); > + if (!rgb888_node) { > + dev_err(dev, "can't find rgb888 node\n"); > + return -ENODEV; > + } > + > + ret = rotator_parse_dt_tbl(ycbcr_node, &rot->limit_tbl.ycbcr420_2p); > + if (ret) { > + dev_err(dev, "failed to parse ycbcr420 data\n"); > + return ret; > + } > + ret = rotator_parse_dt_tbl(rgb888_node, &rot->limit_tbl.rgb888); > + if (ret) { > + dev_err(dev, "failed to parse rgb888 data\n"); > + return ret; > + } > + > + return 0; > +} > + > static int rotator_probe(struct platform_device *pdev) > { > struct device *dev = &pdev->dev; > @@ -639,14 +705,23 @@ static int rotator_probe(struct platform_device > *pdev) > struct exynos_drm_ippdrv *ippdrv; > int ret; > > + if (!dev->of_node) { > + dev_err(dev, "Cannot find device tree node\n"); > + return -ENODEV; > + } > + > rot = devm_kzalloc(dev, sizeof(*rot), GFP_KERNEL); > if (!rot) { > dev_err(dev, "failed to allocate rot\n"); > return -ENOMEM; > } > > - rot->limit_tbl = (struct rot_limit_table *) > - platform_get_device_id(pdev)->driver_data; > + ret = rotator_parse_dt(dev, rot); > + if (ret) { > + dev_err(dev, "failed parse dt info\n"); > + devm_kfree(dev, rot); > + return ret; > + } > > rot->regs_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); > rot->regs = devm_ioremap_resource(dev, rot->regs_res); > @@ -718,31 +793,6 @@ static int rotator_remove(struct platform_device > *pdev) > return 0; > } > > -static struct rot_limit_table rot_limit_tbl = { > - .ycbcr420_2p = { > - .min_w = 32, > - .min_h = 32, > - .max_w = SZ_32K, > - .max_h = SZ_32K, > - .align = 3, > - }, > - .rgb888 = { > - .min_w = 8, > - .min_h = 8, > - .max_w = SZ_8K, > - .max_h = SZ_8K, > - .align = 2, > - }, > -}; > - > -static struct platform_device_id rotator_driver_ids[] = { > - { > - .name = "exynos-rot", > - .driver_data = (unsigned long)&rot_limit_tbl, > - }, > - {}, > -}; > - > static int rotator_clk_crtl(struct rot_context *rot, bool enable) > { > if (enable) { > @@ -804,10 +854,10 @@ static const struct dev_pm_ops rotator_pm_ops = { > struct platform_driver rotator_driver = { > .probe = rotator_probe, > .remove = rotator_remove, > - .id_table = rotator_driver_ids, > .driver = { > .name = "exynos-rot", > .owner = THIS_MODULE, > .pm = &rotator_pm_ops, > + .of_match_table = of_match_ptr(exynos_rotator_match), > }, > }; > -- > 1.7.9.5 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-samsung- > soc" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Monday 22 of July 2013 15:49:25 Chanho Park wrote: > The exynos4 platform is only dt-based since 3.10, we should convert > driver data and ids to dt-based parsing methods. The rotator driver has > a limit table to get size limit. The minimum size of RGB888 format is 8 > x 8 and maximum size is 8K x 8K. The other format, YCbCr420 2-Plane has > 32 x 32 min size and 32K x 32K max size. Each format should be multiple > of 'align' value. > > Signed-off-by: Chanho Park <chanho61.park@samsung.com> > Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> > --- > drivers/gpu/drm/exynos/exynos_drm_rotator.c | 110 > +++++++++++++++++++-------- 1 file changed, 80 insertions(+), 30 > deletions(-) > > diff --git a/drivers/gpu/drm/exynos/exynos_drm_rotator.c > b/drivers/gpu/drm/exynos/exynos_drm_rotator.c index 427640a..b353a10 > 100644 > --- a/drivers/gpu/drm/exynos/exynos_drm_rotator.c > +++ b/drivers/gpu/drm/exynos/exynos_drm_rotator.c > @@ -96,7 +96,7 @@ struct rot_context { > struct resource *regs_res; > void __iomem *regs; > struct clk *clock; > - struct rot_limit_table *limit_tbl; > + struct rot_limit_table limit_tbl; > int irq; > int cur_buf_id[EXYNOS_DRM_OPS_MAX]; > bool suspended; > @@ -167,7 +167,7 @@ static irqreturn_t rotator_irq_handler(int irq, void > *arg) static void rotator_align_size(struct rot_context *rot, u32 fmt, > u32 *hsize, u32 *vsize) > { > - struct rot_limit_table *limit_tbl = rot->limit_tbl; > + struct rot_limit_table *limit_tbl = &rot->limit_tbl; > struct rot_limit *limit; > u32 mask, val; > > @@ -632,6 +632,72 @@ static int rotator_ippdrv_start(struct device *dev, > enum drm_exynos_ipp_cmd cmd) return 0; > } > > +static const struct of_device_id exynos_rotator_match[] = { > + { > + .compatible = "samsung,exynos4210-rotator", > + }, > + {}, > +}; > +MODULE_DEVICE_TABLE(of, exynos_rotator_match); > + > +static int rotator_parse_dt_tbl(struct device_node *np, struct > rot_limit *rlim) +{ > + int ret; > + > + ret = of_property_read_u32(np, "min_w", &rlim->min_w); > + if (ret) > + return ret; > + > + ret = of_property_read_u32(np, "min_h", &rlim->min_h); > + if (ret) > + return ret; > + > + ret = of_property_read_u32(np, "max_w", &rlim->max_w); > + if (ret) > + return ret; > + > + ret = of_property_read_u32(np, "max_h", &rlim->max_h); > + if (ret) > + return ret; > + > + ret = of_property_read_u32(np, "align", &rlim->align); > + if (ret) > + return ret; > + > + return 0; > +} > + > +static int rotator_parse_dt(struct device *dev, struct rot_context > *rot) +{ > + struct device_node *ycbcr_node, *rgb888_node; > + int ret; > + > + ycbcr_node = of_get_child_by_name(dev->of_node, "ycbcr420_2p"); > + if (!ycbcr_node) { > + dev_err(dev, "can't find ycbcr420_2p node\n"); > + return -ENODEV; > + } > + > + rgb888_node = of_get_child_by_name(dev->of_node, "rgb888"); > + if (!rgb888_node) { > + dev_err(dev, "can't find rgb888 node\n"); > + return -ENODEV; > + } > + > + ret = rotator_parse_dt_tbl(ycbcr_node, &rot- >limit_tbl.ycbcr420_2p); > + if (ret) { > + dev_err(dev, "failed to parse ycbcr420 data\n"); > + return ret; > + } > + ret = rotator_parse_dt_tbl(rgb888_node, &rot->limit_tbl.rgb888); > + if (ret) { > + dev_err(dev, "failed to parse rgb888 data\n"); > + return ret; > + } > + > + return 0; > +} > + > static int rotator_probe(struct platform_device *pdev) > { > struct device *dev = &pdev->dev; > @@ -639,14 +705,23 @@ static int rotator_probe(struct platform_device > *pdev) struct exynos_drm_ippdrv *ippdrv; > int ret; > > + if (!dev->of_node) { > + dev_err(dev, "Cannot find device tree node\n"); > + return -ENODEV; > + } > + > rot = devm_kzalloc(dev, sizeof(*rot), GFP_KERNEL); > if (!rot) { > dev_err(dev, "failed to allocate rot\n"); > return -ENOMEM; > } > > - rot->limit_tbl = (struct rot_limit_table *) > - platform_get_device_id(pdev)->driver_data; > + ret = rotator_parse_dt(dev, rot); > + if (ret) { > + dev_err(dev, "failed parse dt info\n"); > + devm_kfree(dev, rot); > + return ret; > + } > > rot->regs_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); > rot->regs = devm_ioremap_resource(dev, rot->regs_res); > @@ -718,31 +793,6 @@ static int rotator_remove(struct platform_device > *pdev) return 0; > } > > -static struct rot_limit_table rot_limit_tbl = { > - .ycbcr420_2p = { > - .min_w = 32, > - .min_h = 32, > - .max_w = SZ_32K, > - .max_h = SZ_32K, > - .align = 3, > - }, > - .rgb888 = { > - .min_w = 8, > - .min_h = 8, > - .max_w = SZ_8K, > - .max_h = SZ_8K, > - .align = 2, > - }, > -}; > - > -static struct platform_device_id rotator_driver_ids[] = { > - { > - .name = "exynos-rot", > - .driver_data = (unsigned long)&rot_limit_tbl, > - }, > - {}, > -}; > - I would keep these driver data here and just point to them from match_data of OF match table, as suggested in other replies. Best regards, Tomasz -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/gpu/drm/exynos/exynos_drm_rotator.c b/drivers/gpu/drm/exynos/exynos_drm_rotator.c index 427640a..b353a10 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_rotator.c +++ b/drivers/gpu/drm/exynos/exynos_drm_rotator.c @@ -96,7 +96,7 @@ struct rot_context { struct resource *regs_res; void __iomem *regs; struct clk *clock; - struct rot_limit_table *limit_tbl; + struct rot_limit_table limit_tbl; int irq; int cur_buf_id[EXYNOS_DRM_OPS_MAX]; bool suspended; @@ -167,7 +167,7 @@ static irqreturn_t rotator_irq_handler(int irq, void *arg) static void rotator_align_size(struct rot_context *rot, u32 fmt, u32 *hsize, u32 *vsize) { - struct rot_limit_table *limit_tbl = rot->limit_tbl; + struct rot_limit_table *limit_tbl = &rot->limit_tbl; struct rot_limit *limit; u32 mask, val; @@ -632,6 +632,72 @@ static int rotator_ippdrv_start(struct device *dev, enum drm_exynos_ipp_cmd cmd) return 0; } +static const struct of_device_id exynos_rotator_match[] = { + { + .compatible = "samsung,exynos4210-rotator", + }, + {}, +}; +MODULE_DEVICE_TABLE(of, exynos_rotator_match); + +static int rotator_parse_dt_tbl(struct device_node *np, struct rot_limit *rlim) +{ + int ret; + + ret = of_property_read_u32(np, "min_w", &rlim->min_w); + if (ret) + return ret; + + ret = of_property_read_u32(np, "min_h", &rlim->min_h); + if (ret) + return ret; + + ret = of_property_read_u32(np, "max_w", &rlim->max_w); + if (ret) + return ret; + + ret = of_property_read_u32(np, "max_h", &rlim->max_h); + if (ret) + return ret; + + ret = of_property_read_u32(np, "align", &rlim->align); + if (ret) + return ret; + + return 0; +} + +static int rotator_parse_dt(struct device *dev, struct rot_context *rot) +{ + struct device_node *ycbcr_node, *rgb888_node; + int ret; + + ycbcr_node = of_get_child_by_name(dev->of_node, "ycbcr420_2p"); + if (!ycbcr_node) { + dev_err(dev, "can't find ycbcr420_2p node\n"); + return -ENODEV; + } + + rgb888_node = of_get_child_by_name(dev->of_node, "rgb888"); + if (!rgb888_node) { + dev_err(dev, "can't find rgb888 node\n"); + return -ENODEV; + } + + ret = rotator_parse_dt_tbl(ycbcr_node, &rot->limit_tbl.ycbcr420_2p); + if (ret) { + dev_err(dev, "failed to parse ycbcr420 data\n"); + return ret; + } + ret = rotator_parse_dt_tbl(rgb888_node, &rot->limit_tbl.rgb888); + if (ret) { + dev_err(dev, "failed to parse rgb888 data\n"); + return ret; + } + + return 0; +} + static int rotator_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -639,14 +705,23 @@ static int rotator_probe(struct platform_device *pdev) struct exynos_drm_ippdrv *ippdrv; int ret; + if (!dev->of_node) { + dev_err(dev, "Cannot find device tree node\n"); + return -ENODEV; + } + rot = devm_kzalloc(dev, sizeof(*rot), GFP_KERNEL); if (!rot) { dev_err(dev, "failed to allocate rot\n"); return -ENOMEM; } - rot->limit_tbl = (struct rot_limit_table *) - platform_get_device_id(pdev)->driver_data; + ret = rotator_parse_dt(dev, rot); + if (ret) { + dev_err(dev, "failed parse dt info\n"); + devm_kfree(dev, rot); + return ret; + } rot->regs_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); rot->regs = devm_ioremap_resource(dev, rot->regs_res); @@ -718,31 +793,6 @@ static int rotator_remove(struct platform_device *pdev) return 0; } -static struct rot_limit_table rot_limit_tbl = { - .ycbcr420_2p = { - .min_w = 32, - .min_h = 32, - .max_w = SZ_32K, - .max_h = SZ_32K, - .align = 3, - }, - .rgb888 = { - .min_w = 8, - .min_h = 8, - .max_w = SZ_8K, - .max_h = SZ_8K, - .align = 2, - }, -}; - -static struct platform_device_id rotator_driver_ids[] = { - { - .name = "exynos-rot", - .driver_data = (unsigned long)&rot_limit_tbl, - }, - {}, -}; - static int rotator_clk_crtl(struct rot_context *rot, bool enable) { if (enable) { @@ -804,10 +854,10 @@ static const struct dev_pm_ops rotator_pm_ops = { struct platform_driver rotator_driver = { .probe = rotator_probe, .remove = rotator_remove, - .id_table = rotator_driver_ids, .driver = { .name = "exynos-rot", .owner = THIS_MODULE, .pm = &rotator_pm_ops, + .of_match_table = of_match_ptr(exynos_rotator_match), }, };