| Message ID | 1376370779-26930-2-git-send-email-chanho61.park@samsung.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On 08/13/13 14:12, 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 of input picture. Each SoCs has slightly different limit value > compared with any others. > For example, exynos4210's max_size of RGB888 is 16k x 16k. But, others have > 8k x 8k. Another example the exynos5250 should have multiple of 2 pixel size > for its X/Y axis. Thus, we should keep different tables for each of them. > This patch also includes desciptions of each nodes for the rotator and specifies > a example how to bind it. > > Signed-off-by: Chanho Park<chanho61.park@samsung.com> > Cc: Inki Dae<inki.dae@samsung.com> Inki, do you OK on this? If so, let me take this whole series into the samsung tree. Thanks, Kukjin > Signed-off-by: Kyungmin Park<kyungmin.park@samsung.com> > --- > .../devicetree/bindings/gpu/samsung-rotator.txt | 27 +++++ > drivers/gpu/drm/exynos/exynos_drm_rotator.c | 108 +++++++++++++++----- > 2 files changed, 107 insertions(+), 28 deletions(-) > create mode 100644 Documentation/devicetree/bindings/gpu/samsung-rotator.txt > > diff --git a/Documentation/devicetree/bindings/gpu/samsung-rotator.txt b/Documentation/devicetree/bindings/gpu/samsung-rotator.txt > new file mode 100644 > index 0000000..82cd1ed > --- /dev/null > +++ b/Documentation/devicetree/bindings/gpu/samsung-rotator.txt > @@ -0,0 +1,27 @@ > +* Samsung Image Rotator > + > +Required properties: > + - compatible : value should be one of the following: > + (a) "samsung,exynos4210-rotator" for Rotator IP in Exynos4210 > + (b) "samsung,exynos4212-rotator" for Rotator IP in Exynos4212/4412 > + (c) "samsung,exynos5250-rotator" for Rotator IP in Exynos5250 > + > + - reg : Physical base address of the IP registers and length of memory > + mapped region. > + > + - interrupts : Interrupt specifier for rotator interrupt, according to format > + specific to interrupt parent. > + > + - clocks : Clock specifier for rotator clock, according to generic clock > + bindings. (See Documentation/devicetree/bindings/clock/exynos*.txt) > + > + - clock-names : Names of clocks. For exynos rotator, it should be "rotator". > + > +Example: > + rotator@12810000 { > + compatible = "samsung,exynos4210-rotator"; > + reg =<0x12810000 0x1000>; > + interrupts =<0 83 0>; > + clocks =<&clock 278>; > + clock-names = "rotator"; > + }; > diff --git a/drivers/gpu/drm/exynos/exynos_drm_rotator.c b/drivers/gpu/drm/exynos/exynos_drm_rotator.c > index 427640a..0485aea5 100644 > --- a/drivers/gpu/drm/exynos/exynos_drm_rotator.c > +++ b/drivers/gpu/drm/exynos/exynos_drm_rotator.c > @@ -632,21 +632,98 @@ static int rotator_ippdrv_start(struct device *dev, enum drm_exynos_ipp_cmd cmd) > return 0; > } > > +static struct rot_limit_table rot_limit_tbl_4210 = { > + .ycbcr420_2p = { > + .min_w = 32, > + .min_h = 32, > + .max_w = SZ_64K, > + .max_h = SZ_64K, > + .align = 3, > + }, > + .rgb888 = { > + .min_w = 8, > + .min_h = 8, > + .max_w = SZ_16K, > + .max_h = SZ_16K, > + .align = 2, > + }, > +}; > + > +static struct rot_limit_table rot_limit_tbl_4x12 = { > + .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 rot_limit_table rot_limit_tbl_5250 = { > + .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 = 1, > + }, > +}; > + > +static const struct of_device_id exynos_rotator_match[] = { > + { > + .compatible = "samsung,exynos4210-rotator", > + .data =&rot_limit_tbl_4210, > + }, > + { > + .compatible = "samsung,exynos4212-rotator", > + .data =&rot_limit_tbl_4x12, > + }, > + { > + .compatible = "samsung,exynos5250-rotator", > + .data =&rot_limit_tbl_5250, > + }, > + {}, > +}; > + > static int rotator_probe(struct platform_device *pdev) > { > struct device *dev =&pdev->dev; > struct rot_context *rot; > struct exynos_drm_ippdrv *ippdrv; > + const struct of_device_id *match; > int ret; > > + if (!dev->of_node) { > + dev_err(dev, "cannot find of_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; > + match = of_match_node(exynos_rotator_match, dev->of_node); > + if (!match) { > + dev_err(dev, "failed to match node\n"); > + return -ENODEV; > + } > + rot->limit_tbl = (struct rot_limit_table *)match->data; > > rot->regs_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); > rot->regs = devm_ioremap_resource(dev, rot->regs_res); > @@ -718,31 +795,6 @@ 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 +856,10 @@ 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 = exynos_rotator_match, > }, > };
diff --git a/Documentation/devicetree/bindings/gpu/samsung-rotator.txt b/Documentation/devicetree/bindings/gpu/samsung-rotator.txt new file mode 100644 index 0000000..82cd1ed --- /dev/null +++ b/Documentation/devicetree/bindings/gpu/samsung-rotator.txt @@ -0,0 +1,27 @@ +* Samsung Image Rotator + +Required properties: + - compatible : value should be one of the following: + (a) "samsung,exynos4210-rotator" for Rotator IP in Exynos4210 + (b) "samsung,exynos4212-rotator" for Rotator IP in Exynos4212/4412 + (c) "samsung,exynos5250-rotator" for Rotator IP in Exynos5250 + + - reg : Physical base address of the IP registers and length of memory + mapped region. + + - interrupts : Interrupt specifier for rotator interrupt, according to format + specific to interrupt parent. + + - clocks : Clock specifier for rotator clock, according to generic clock + bindings. (See Documentation/devicetree/bindings/clock/exynos*.txt) + + - clock-names : Names of clocks. For exynos rotator, it should be "rotator". + +Example: + rotator@12810000 { + compatible = "samsung,exynos4210-rotator"; + reg = <0x12810000 0x1000>; + interrupts = <0 83 0>; + clocks = <&clock 278>; + clock-names = "rotator"; + }; diff --git a/drivers/gpu/drm/exynos/exynos_drm_rotator.c b/drivers/gpu/drm/exynos/exynos_drm_rotator.c index 427640a..0485aea5 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_rotator.c +++ b/drivers/gpu/drm/exynos/exynos_drm_rotator.c @@ -632,21 +632,98 @@ static int rotator_ippdrv_start(struct device *dev, enum drm_exynos_ipp_cmd cmd) return 0; } +static struct rot_limit_table rot_limit_tbl_4210 = { + .ycbcr420_2p = { + .min_w = 32, + .min_h = 32, + .max_w = SZ_64K, + .max_h = SZ_64K, + .align = 3, + }, + .rgb888 = { + .min_w = 8, + .min_h = 8, + .max_w = SZ_16K, + .max_h = SZ_16K, + .align = 2, + }, +}; + +static struct rot_limit_table rot_limit_tbl_4x12 = { + .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 rot_limit_table rot_limit_tbl_5250 = { + .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 = 1, + }, +}; + +static const struct of_device_id exynos_rotator_match[] = { + { + .compatible = "samsung,exynos4210-rotator", + .data = &rot_limit_tbl_4210, + }, + { + .compatible = "samsung,exynos4212-rotator", + .data = &rot_limit_tbl_4x12, + }, + { + .compatible = "samsung,exynos5250-rotator", + .data = &rot_limit_tbl_5250, + }, + {}, +}; + static int rotator_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct rot_context *rot; struct exynos_drm_ippdrv *ippdrv; + const struct of_device_id *match; int ret; + if (!dev->of_node) { + dev_err(dev, "cannot find of_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; + match = of_match_node(exynos_rotator_match, dev->of_node); + if (!match) { + dev_err(dev, "failed to match node\n"); + return -ENODEV; + } + rot->limit_tbl = (struct rot_limit_table *)match->data; rot->regs_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); rot->regs = devm_ioremap_resource(dev, rot->regs_res); @@ -718,31 +795,6 @@ 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 +856,10 @@ 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 = exynos_rotator_match, }, };