From: Tomasz Stanislawski t.stanislaws@samsung.com
The HDMIPHY (physical interface) is controlled by a single bit in a power controller's regiter. It was implemented as clock. It was a simple but effective hack.
This patch makes HDMI driver to control HDMIPHY via PHY interface.
Signed-off-by: Tomasz Stanislawski t.stanislaws@samsung.com Signed-off-by: Rahul Sharma Rahul.Sharma@samsung.com --- drivers/gpu/drm/exynos/exynos_hdmi.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c index 9a6d652..ef1cdd0 100644 --- a/drivers/gpu/drm/exynos/exynos_hdmi.c +++ b/drivers/gpu/drm/exynos/exynos_hdmi.c @@ -36,6 +36,7 @@ #include <linux/i2c.h> #include <linux/of_gpio.h> #include <linux/hdmi.h> +#include <linux/phy/phy.h>
#include <drm/exynos_drm.h>
@@ -74,8 +75,8 @@ struct hdmi_resources { struct clk *sclk_hdmi; struct clk *sclk_pixel; struct clk *sclk_hdmiphy; - struct clk *hdmiphy; struct clk *mout_hdmi; + struct phy *hdmiphy; struct regulator_bulk_data *regul_bulk; int regul_count; }; @@ -1854,7 +1855,7 @@ static void hdmi_poweron(struct exynos_drm_display *display) if (regulator_bulk_enable(res->regul_count, res->regul_bulk)) DRM_DEBUG_KMS("failed to enable regulator bulk\n");
- clk_prepare_enable(res->hdmiphy); + phy_power_on(res->hdmiphy); clk_prepare_enable(res->hdmi); clk_prepare_enable(res->sclk_hdmi);
@@ -1881,7 +1882,7 @@ static void hdmi_poweroff(struct exynos_drm_display *display)
clk_disable_unprepare(res->sclk_hdmi); clk_disable_unprepare(res->hdmi); - clk_disable_unprepare(res->hdmiphy); + phy_power_off(res->hdmiphy); regulator_bulk_disable(res->regul_count, res->regul_bulk);
pm_runtime_put_sync(hdata->dev); @@ -1977,9 +1978,9 @@ static int hdmi_resources_init(struct hdmi_context *hdata) DRM_ERROR("failed to get clock 'sclk_hdmiphy'\n"); goto fail; } - res->hdmiphy = devm_clk_get(dev, "hdmiphy"); + res->hdmiphy = devm_phy_get(dev, "hdmiphy"); if (IS_ERR(res->hdmiphy)) { - DRM_ERROR("failed to get clock 'hdmiphy'\n"); + DRM_ERROR("failed to get phy 'hdmiphy'\n"); goto fail; } res->mout_hdmi = devm_clk_get(dev, "mout_hdmi");