diff options
| author | Andrzej Hajda <a.hajda@samsung.com> | 2017-08-24 16:33:55 +0300 |
|---|---|---|
| committer | Inki Dae <inki.dae@samsung.com> | 2017-08-25 05:58:07 +0300 |
| commit | 34c3db6c22a0c770c6c9a4c4e6462ee4baa64b30 (patch) | |
| tree | 32f50bde3e114404e8019cab55f53fe42a8e3728 /drivers/gpu/drm/exynos | |
| parent | 29c5079d9e67e4c32719077ba619f2782b34e3d0 (diff) | |
| download | linux-34c3db6c22a0c770c6c9a4c4e6462ee4baa64b30.tar.xz | |
drm/exynos/decon5433: refactor irq requesting code
To allow runtime validation of mode of work irq request
code should be split into two separate phases:
- irq reqesting,
- irq checking.
Following patches will move 2nd phase to mode validation phase.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Diffstat (limited to 'drivers/gpu/drm/exynos')
| -rw-r--r-- | drivers/gpu/drm/exynos/exynos5433_drm_decon.c | 54 |
1 files changed, 30 insertions, 24 deletions
diff --git a/drivers/gpu/drm/exynos/exynos5433_drm_decon.c b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c index 237b4c99d5fe..0f5accea51a0 100644 --- a/drivers/gpu/drm/exynos/exynos5433_drm_decon.c +++ b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c @@ -58,6 +58,8 @@ struct decon_context { struct regmap *sysreg; struct clk *clks[ARRAY_SIZE(decon_clks_name)]; unsigned int irq; + unsigned int irq_vsync; + unsigned int irq_lcd_sys; unsigned int te_irq; unsigned long out_type; int first_win; @@ -670,19 +672,22 @@ static const struct of_device_id exynos5433_decon_driver_dt_match[] = { MODULE_DEVICE_TABLE(of, exynos5433_decon_driver_dt_match); static int decon_conf_irq(struct decon_context *ctx, const char *name, - irq_handler_t handler, unsigned long int flags, bool required) + irq_handler_t handler, unsigned long int flags) { struct platform_device *pdev = to_platform_device(ctx->dev); int ret, irq = platform_get_irq_byname(pdev, name); if (irq < 0) { - if (irq == -EPROBE_DEFER) + switch (irq) { + case -EPROBE_DEFER: return irq; - if (required) - dev_err(ctx->dev, "cannot get %s IRQ\n", name); - else - irq = 0; - return irq; + case -ENODATA: + case -ENXIO: + return 0; + default: + dev_err(ctx->dev, "IRQ %s get failed, %d\n", name, irq); + return irq; + } } irq_set_status_flags(irq, IRQ_NOAUTOEN); ret = devm_request_irq(ctx->dev, irq, handler, flags, "drm_decon", ctx); @@ -738,25 +743,26 @@ static int exynos5433_decon_probe(struct platform_device *pdev) return PTR_ERR(ctx->addr); } - if (ctx->out_type & IFTYPE_I80) { - ret = decon_conf_irq(ctx, "lcd_sys", decon_irq_handler, 0, true); - if (ret < 0) - return ret; - ctx->irq = ret; + ret = decon_conf_irq(ctx, "vsync", decon_irq_handler, 0); + if (ret < 0) + return ret; + ctx->irq_vsync = ret; - ret = decon_conf_irq(ctx, "te", decon_te_irq_handler, - IRQF_TRIGGER_RISING, false); - if (ret < 0) - return ret; - if (ret) { - ctx->te_irq = ret; - ctx->out_type &= ~I80_HW_TRG; - } - } else { - ret = decon_conf_irq(ctx, "vsync", decon_irq_handler, 0, true); - if (ret < 0) + ret = decon_conf_irq(ctx, "lcd_sys", decon_irq_handler, 0); + if (ret < 0) + return ret; + ctx->irq_lcd_sys = ret; + + ctx->irq = (ctx->out_type & IFTYPE_I80) ? ctx->irq_lcd_sys + : ctx->irq_vsync; + + ret = decon_conf_irq(ctx, "te", decon_te_irq_handler, + IRQF_TRIGGER_RISING); + if (ret < 0) return ret; - ctx->irq = ret; + if (ret) { + ctx->te_irq = ret; + ctx->out_type &= ~I80_HW_TRG; } if (ctx->out_type & I80_HW_TRG) { |