Dear Varka Bhadram,
On Fri, 10 Apr 2015 11:35:02 +0530
Varka Bhadram <varkabhadram@xxxxxxxxx> wrote:
> On 04/10/2015 11:25 AM, Hyungwon Hwang wrote:
>
> > From: Joonyoung Shim <jy0922.shim@xxxxxxxxxxx>
> >
> > DECON(Display and Enhancement Controller) is new IP replacing FIMD
> > in Exynos5433. This patch adds Exynos5433 decon driver.
> >
> > Signed-off-by: Joonyoung Shim <jy0922.shim@xxxxxxxxxxx>
> > Signed-off-by: Hyungwon Hwang <human.hwang@xxxxxxxxxxx>
> > ---
> > Changes for v2:
> > - change file names and variable names of decon to represnt
> > exynos5433 instead of exynos to distinguish them from exynos7 decon
> >
> > Changes for v3:
> > - fail fast when the proper image format is not set
> > - remove unnecessary checking code
> > - add and modify the function to make DPMS work well
> >
> > Changes for v4:
> > - rebased to exynos-drm-next with the clean-up patchset by Gustavo
> > Padovan.
> >
> > Changes for v5:
> > - None
> > .../devicetree/bindings/video/exynos5433-decon.txt | 65 +++
> > drivers/gpu/drm/exynos/Kconfig | 6 +
> > drivers/gpu/drm/exynos/Makefile | 1 +
> > drivers/gpu/drm/exynos/exynos5433_drm_decon.c | 617
> > +++++++++++++++++++++
> > drivers/gpu/drm/exynos/exynos_drm_drv.c | 3 +
> > drivers/gpu/drm/exynos/exynos_drm_drv.h | 1 +
> > include/video/exynos5433_decon.h | 163 ++++++ 7
> > files changed, 856 insertions(+) create mode 100644
> > Documentation/devicetree/bindings/video/exynos5433-decon.txt create
> > mode 100644 drivers/gpu/drm/exynos/exynos5433_drm_decon.c create
> > mode 100644 include/video/exynos5433_decon.h
> >
> (...)
>
> > + res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> > + if (!res) {
> > + dev_err(dev, "cannot find IO resource\n");
> > + return -ENXIO;
> > + }
> > +
>
> Remove the above check. Check one *res* will be done by
> *devm_ioremap_resource()*
OK.
>
> > + ctx->addr = devm_ioremap_resource(dev, res);
> > + if (IS_ERR(ctx->addr)) {
> > + dev_err(dev, "ioremap failed\n");
> > + return PTR_ERR(ctx->addr);
> > + }
> > +
> > + res = platform_get_resource_byname(pdev, IORESOURCE_IRQ,
> > + ctx->i80_if ? "lcd_sys" : "vsync");
> > + if (!res) {
> > + dev_err(dev, "cannot find IRQ resource\n");
> > + return -ENXIO;
> > + }
> > +
> > + ret = devm_request_irq(dev, res->start, ctx->i80_if ?
> > + decon_lcd_sys_irq_handler :
> > decon_vsync_irq_handler, 0,
> > + "drm_decon", ctx);
> > + if (ret < 0) {
> > + dev_err(dev, "lcd_sys irq request failed\n");
> > + return ret;
> > + }
> > +
> > + ret = exynos_drm_component_add(dev,
> > EXYNOS_DEVICE_TYPE_CRTC,
> > + EXYNOS_DISPLAY_TYPE_LCD);
> > + if (ret < 0)
> > + return ret;
> > +
> > + platform_set_drvdata(pdev, ctx);
> > +
> > + ret = component_add(dev, &decon_component_ops);
> > + if (ret < 0) {
> > + exynos_drm_component_del(dev,
> > EXYNOS_DEVICE_TYPE_CRTC);
> > + return ret;
> > + }
> > +
> > + return 0;
> > +}
> > +
> > +static int exynos5433_decon_remove(struct platform_device *pdev)
> > +{
> > + component_del(&pdev->dev, &decon_component_ops);
> > + exynos_drm_component_del(&pdev->dev,
> > EXYNOS_DEVICE_TYPE_CRTC); +
> > + return 0;
> > +}
> > +
> > +static const struct of_device_id
> > exynos5433_decon_driver_dt_match[] = {
> > + { .compatible = "samsung,exynos5433-decon" },
> > + {},
> > +};
> > +MODULE_DEVICE_TABLE(of, exynos5433_decon_driver_dt_match);
> > +
> > +struct platform_driver exynos5433_decon_driver = {
> > + .probe = exynos5433_decon_probe,
> > + .remove = exynos5433_decon_remove,
> > + .driver = {
> > + .name = "exynos5433-decon",
> > + .owner = THIS_MODULE,
>
> Remove this field. It will be updated by platform core.
>
OK.
Thanks for your review.
Best regards,
Hyungwon Hwang
> > + .of_match_table = exynos5433_decon_driver_dt_match,
> > + },
> > +};
>
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