[PATCH v15 03/16] drm: exynos: dsi: Mark PHY as optional

[Jagan Teki]

The same Samsung MIPI DSIM master can also be used in NXP's
i.MX8M Mini/Nano/Plus SoC.

In i.MX8M Mini/Nano/Plus SoC the DSI Phy requires a MIPI DPHY
bit to reset in order to activate the PHY and that can be done
via upstream i.MX8M blk-ctrl driver.

So, mark the phy get as optional.

Reviewed-by: Frieder Schrempf <frieder.schre...@kontron.de>
Reviewed-by: Marek Vasut <ma...@denx.de>
Signed-off-by: Jagan Teki <ja...@amarulasolutions.com>
---
Changes for v15, v13, v12:
- none
Changes for v11:
- collect Frieder RB
Changes for v10:
- add Plus in commit message
- collect Marek RB
Changes for v9, v8, v7, v6, v5, v4, v3, v2:
- none
Changes for v1:
- new patch

 drivers/gpu/drm/exynos/exynos_drm_dsi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c 
b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
index f44a5a702ad5..af16af404e87 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
@@ -1732,7 +1732,7 @@ static int exynos_dsi_probe(struct platform_device *pdev)
        if (IS_ERR(dsi->reg_base))
                return PTR_ERR(dsi->reg_base);
 
-       dsi->phy = devm_phy_get(dev, "dsim");
+       dsi->phy = devm_phy_optional_get(dev, "dsim");
        if (IS_ERR(dsi->phy)) {
                dev_info(dev, "failed to get dsim phy\n");
                return PTR_ERR(dsi->phy);
-- 
2.25.1