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path: root/drivers/media/platform/exynos-gsc/gsc-core.c
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Diffstat (limited to 'drivers/media/platform/exynos-gsc/gsc-core.c')
-rw-r--r--drivers/media/platform/exynos-gsc/gsc-core.c100
1 files changed, 57 insertions, 43 deletions
diff --git a/drivers/media/platform/exynos-gsc/gsc-core.c b/drivers/media/platform/exynos-gsc/gsc-core.c
index bfec9e65aef..9d0cc04d7ab 100644
--- a/drivers/media/platform/exynos-gsc/gsc-core.c
+++ b/drivers/media/platform/exynos-gsc/gsc-core.c
@@ -185,6 +185,15 @@ static const struct gsc_fmt gsc_formats[] = {
.corder = GSC_CRCB,
.num_planes = 3,
.num_comp = 3,
+ }, {
+ .name = "YUV 4:2:0 n.c. 2p, Y/CbCr tiled",
+ .pixelformat = V4L2_PIX_FMT_NV12MT_16X16,
+ .depth = { 8, 4 },
+ .color = GSC_YUV420,
+ .yorder = GSC_LSB_Y,
+ .corder = GSC_CBCR,
+ .num_planes = 2,
+ .num_comp = 2,
}
};
@@ -935,8 +944,8 @@ static struct gsc_variant gsc_v_100_variant = {
.pix_max = &gsc_v_100_max,
.pix_min = &gsc_v_100_min,
.pix_align = &gsc_v_100_align,
- .in_buf_cnt = 8,
- .out_buf_cnt = 16,
+ .in_buf_cnt = 32,
+ .out_buf_cnt = 32,
.sc_up_max = 8,
.sc_down_max = 16,
.poly_sc_down_max = 4,
@@ -965,8 +974,10 @@ static struct platform_device_id gsc_driver_ids[] = {
MODULE_DEVICE_TABLE(platform, gsc_driver_ids);
static const struct of_device_id exynos_gsc_match[] = {
- { .compatible = "samsung,exynos5250-gsc",
- .data = &gsc_v_100_drvdata, },
+ {
+ .compatible = "samsung,exynos5-gsc",
+ .data = &gsc_v_100_drvdata,
+ },
{},
};
MODULE_DEVICE_TABLE(of, exynos_gsc_match);
@@ -977,10 +988,10 @@ static void *gsc_get_drv_data(struct platform_device *pdev)
if (pdev->dev.of_node) {
const struct of_device_id *match;
- match = of_match_node(of_match_ptr(exynos_gsc_match),
+ match = of_match_node(exynos_gsc_match,
pdev->dev.of_node);
if (match)
- driver_data = match->data;
+ driver_data = (struct gsc_driverdata *)match->data;
} else {
driver_data = (struct gsc_driverdata *)
platform_get_device_id(pdev)->driver_data;
@@ -991,12 +1002,8 @@ static void *gsc_get_drv_data(struct platform_device *pdev)
static void gsc_clk_put(struct gsc_dev *gsc)
{
- if (IS_ERR_OR_NULL(gsc->clock))
- return;
-
- clk_unprepare(gsc->clock);
- clk_put(gsc->clock);
- gsc->clock = NULL;
+ if (!IS_ERR(gsc->clock))
+ clk_unprepare(gsc->clock);
}
static int gsc_clk_get(struct gsc_dev *gsc)
@@ -1005,27 +1012,22 @@ static int gsc_clk_get(struct gsc_dev *gsc)
dev_dbg(&gsc->pdev->dev, "gsc_clk_get Called\n");
- gsc->clock = clk_get(&gsc->pdev->dev, GSC_CLOCK_GATE_NAME);
- if (IS_ERR(gsc->clock))
- goto err_print;
+ gsc->clock = devm_clk_get(&gsc->pdev->dev, GSC_CLOCK_GATE_NAME);
+ if (IS_ERR(gsc->clock)) {
+ dev_err(&gsc->pdev->dev, "failed to get clock~~~: %s\n",
+ GSC_CLOCK_GATE_NAME);
+ return PTR_ERR(gsc->clock);
+ }
ret = clk_prepare(gsc->clock);
if (ret < 0) {
- clk_put(gsc->clock);
- gsc->clock = NULL;
- goto err;
+ dev_err(&gsc->pdev->dev, "clock prepare failed for clock: %s\n",
+ GSC_CLOCK_GATE_NAME);
+ gsc->clock = ERR_PTR(-EINVAL);
+ return ret;
}
return 0;
-
-err:
- dev_err(&gsc->pdev->dev, "clock prepare failed for clock: %s\n",
- GSC_CLOCK_GATE_NAME);
- gsc_clk_put(gsc);
-err_print:
- dev_err(&gsc->pdev->dev, "failed to get clock~~~: %s\n",
- GSC_CLOCK_GATE_NAME);
- return -ENXIO;
}
static int gsc_m2m_suspend(struct gsc_dev *gsc)
@@ -1052,16 +1054,18 @@ static int gsc_m2m_suspend(struct gsc_dev *gsc)
static int gsc_m2m_resume(struct gsc_dev *gsc)
{
+ struct gsc_ctx *ctx;
unsigned long flags;
spin_lock_irqsave(&gsc->slock, flags);
/* Clear for full H/W setup in first run after resume */
+ ctx = gsc->m2m.ctx;
gsc->m2m.ctx = NULL;
spin_unlock_irqrestore(&gsc->slock, flags);
if (test_and_clear_bit(ST_M2M_SUSPENDED, &gsc->state))
- gsc_m2m_job_finish(gsc->m2m.ctx,
- VB2_BUF_STATE_ERROR);
+ gsc_m2m_job_finish(ctx, VB2_BUF_STATE_ERROR);
+
return 0;
}
@@ -1094,13 +1098,12 @@ static int gsc_probe(struct platform_device *pdev)
init_waitqueue_head(&gsc->irq_queue);
spin_lock_init(&gsc->slock);
mutex_init(&gsc->lock);
+ gsc->clock = ERR_PTR(-EINVAL);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- gsc->regs = devm_request_and_ioremap(dev, res);
- if (!gsc->regs) {
- dev_err(dev, "failed to map registers\n");
- return -ENOENT;
- }
+ gsc->regs = devm_ioremap_resource(dev, res);
+ if (IS_ERR(gsc->regs))
+ return PTR_ERR(gsc->regs);
res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (!res) {
@@ -1119,10 +1122,14 @@ static int gsc_probe(struct platform_device *pdev)
goto err_clk;
}
- ret = gsc_register_m2m_device(gsc);
+ ret = v4l2_device_register(dev, &gsc->v4l2_dev);
if (ret)
goto err_clk;
+ ret = gsc_register_m2m_device(gsc);
+ if (ret)
+ goto err_v4l2;
+
platform_set_drvdata(pdev, gsc);
pm_runtime_enable(dev);
ret = pm_runtime_get_sync(&pdev->dev);
@@ -1144,19 +1151,23 @@ err_pm:
pm_runtime_put(dev);
err_m2m:
gsc_unregister_m2m_device(gsc);
+err_v4l2:
+ v4l2_device_unregister(&gsc->v4l2_dev);
err_clk:
gsc_clk_put(gsc);
return ret;
}
-static int __devexit gsc_remove(struct platform_device *pdev)
+static int gsc_remove(struct platform_device *pdev)
{
struct gsc_dev *gsc = platform_get_drvdata(pdev);
gsc_unregister_m2m_device(gsc);
+ v4l2_device_unregister(&gsc->v4l2_dev);
vb2_dma_contig_cleanup_ctx(gsc->alloc_ctx);
pm_runtime_disable(&pdev->dev);
+ gsc_clk_put(gsc);
dev_dbg(&pdev->dev, "%s driver unloaded\n", pdev->name);
return 0;
@@ -1202,16 +1213,16 @@ static int gsc_resume(struct device *dev)
/* Do not resume if the device was idle before system suspend */
spin_lock_irqsave(&gsc->slock, flags);
if (!test_and_clear_bit(ST_SUSPEND, &gsc->state) ||
- !gsc_m2m_active(gsc)) {
+ !gsc_m2m_opened(gsc)) {
spin_unlock_irqrestore(&gsc->slock, flags);
return 0;
}
- gsc_hw_set_sw_reset(gsc);
- gsc_wait_reset(gsc);
-
spin_unlock_irqrestore(&gsc->slock, flags);
- return gsc_m2m_resume(gsc);
+ if (!pm_runtime_suspended(dev))
+ return gsc_runtime_resume(dev);
+
+ return 0;
}
static int gsc_suspend(struct device *dev)
@@ -1223,7 +1234,10 @@ static int gsc_suspend(struct device *dev)
if (test_and_set_bit(ST_SUSPEND, &gsc->state))
return 0;
- return gsc_m2m_suspend(gsc);
+ if (!pm_runtime_suspended(dev))
+ return gsc_runtime_suspend(dev);
+
+ return 0;
}
static const struct dev_pm_ops gsc_pm_ops = {
@@ -1235,7 +1249,7 @@ static const struct dev_pm_ops gsc_pm_ops = {
static struct platform_driver gsc_driver = {
.probe = gsc_probe,
- .remove = __devexit_p(gsc_remove),
+ .remove = gsc_remove,
.id_table = gsc_driver_ids,
.driver = {
.name = GSC_MODULE_NAME,
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 18:56:01 +0000