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.
[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
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