Hi Sachin, > -----Original Message----- > From: Sachin Kamat [mailto:sachin.kamat@xxxxxxxxxx] > Sent: Friday, August 09, 2013 6:49 PM > To: Chanho Park > Cc: inki.dae@xxxxxxxxxxx; kgene.kim@xxxxxxxxxxx; dri- > devel@xxxxxxxxxxxxxxxxxxxxx; kyungmin.park@xxxxxxxxxxx; > mark.rutland@xxxxxxx; l.stach@xxxxxxxxxxxxxx; s.nawrocki@xxxxxxxxxxx; > tomasz.figa@xxxxxxxxx; linux-samsung-soc@xxxxxxxxxxxxxxx; linux-arm- > kernel@xxxxxxxxxxxxxxxxxxx; devicetree@xxxxxxxxxxxxxxx > Subject: Re: [PATCHv2 1/5] drm/exynos: add device tree support for > rotator > > Hi Chanho, > > On 9 August 2013 13:10, Chanho Park <chanho61.park@xxxxxxxxxxx> 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. > > > > Signed-off-by: Chanho Park <chanho61.park@xxxxxxxxxxx> > > Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx> > > --- > > drivers/gpu/drm/exynos/exynos_drm_rotator.c | 109 > > ++++++++++++++++++++------- > > 1 file changed, 81 insertions(+), 28 deletions(-) > [snip] > > + > > +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; @@ -645,8 +712,19 @@ static > > int rotator_probe(struct platform_device *pdev) > > return -ENOMEM; > > } > > > > - rot->limit_tbl = (struct rot_limit_table *) > > - platform_get_device_id(pdev)->driver_data; > > + if (dev->of_node) { > > + const struct of_device_id *match; > > + match = > > + of_match_node(of_match_ptr(exynos_rotator_match), > > of_match_ptr is not needed since exynos_rotator_match is always compiled > in. OK. I'll remove it. Thanks. > > [snip] > > -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 +857,10 @@ 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), > > ditto > > -- > With warm regards, > Sachin -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
