drm/exynos/hdmi: use constant size array for regulators

Driver always uses the same number of regulators, so there is no point in
dynamic allocation.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c
index 841470c..583dd5e 100644 (file)
--- a/drivers/gpu/drm/exynos/exynos_hdmi.c
+++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
@@ -83,6 +83,12 @@ static const u32 hdmi_reg_map[][HDMI_TYPE_COUNT] = {
        { HDMI_V13_ACR_CON, HDMI_V14_ACR_CON },
 };
 
+static const char * const supply[] = {
+       "vdd",
+       "vdd_osc",
+       "vdd_pll",
+};
+
 struct hdmi_driver_data {
        unsigned int type;
        const struct hdmiphy_config *phy_confs;
@@ -96,9 +102,8 @@ struct hdmi_resources {
        struct clk                      *sclk_pixel;
        struct clk                      *sclk_hdmiphy;
        struct clk                      *mout_hdmi;
-       struct regulator_bulk_data      *regul_bulk;
+       struct regulator_bulk_data      regul_bulk[ARRAY_SIZE(supply)];
        struct regulator                *reg_hdmi_en;
-       int                             regul_count;
 };
 
 struct hdmi_context {
@@ -1652,7 +1657,7 @@ static void hdmi_enable(struct drm_encoder *encoder)
 
        pm_runtime_get_sync(hdata->dev);
 
-       if (regulator_bulk_enable(res->regul_count, res->regul_bulk))
+       if (regulator_bulk_enable(ARRAY_SIZE(supply), res->regul_bulk))
                DRM_DEBUG_KMS("failed to enable regulator bulk\n");
 
        /* set pmu hdmiphy control bit to enable hdmiphy */
@@ -1701,7 +1706,7 @@ static void hdmi_disable(struct drm_encoder *encoder)
        regmap_update_bits(hdata->pmureg, PMU_HDMI_PHY_CONTROL,
                        PMU_HDMI_PHY_ENABLE_BIT, 0);
 
-       regulator_bulk_disable(res->regul_count, res->regul_bulk);
+       regulator_bulk_disable(ARRAY_SIZE(supply), res->regul_bulk);
 
        pm_runtime_put_sync(hdata->dev);
 
@@ -1743,11 +1748,6 @@ static int hdmi_resources_init(struct hdmi_context *hdata)
 {
        struct device *dev = hdata->dev;
        struct hdmi_resources *res = &hdata->res;
-       static char *supply[] = {
-               "vdd",
-               "vdd_osc",
-               "vdd_pll",
-       };
        int i, ret;
 
        DRM_DEBUG_KMS("HDMI resource init\n");
@@ -1786,12 +1786,6 @@ static int hdmi_resources_init(struct hdmi_context *hdata)
 
        clk_set_parent(res->mout_hdmi, res->sclk_pixel);
 
-       res->regul_bulk = devm_kzalloc(dev, ARRAY_SIZE(supply) *
-               sizeof(res->regul_bulk[0]), GFP_KERNEL);
-       if (!res->regul_bulk) {
-               ret = -ENOMEM;
-               goto fail;
-       }
        for (i = 0; i < ARRAY_SIZE(supply); ++i) {
                res->regul_bulk[i].supply = supply[i];
                res->regul_bulk[i].consumer = NULL;
@@ -1801,7 +1795,6 @@ static int hdmi_resources_init(struct hdmi_context *hdata)
                DRM_ERROR("failed to get regulators\n");
                return ret;
        }
-       res->regul_count = ARRAY_SIZE(supply);
 
        res->reg_hdmi_en = devm_regulator_get_optional(dev, "hdmi-en");