diff --git a/drivers/clk/samsung/clk-exynos4412-isp.c b/drivers/clk/samsung/clk-exynos4412-isp.c
index 4b9e73608c21..b69e381b8c0c 100644
--- a/drivers/clk/samsung/clk-exynos4412-isp.c
+++ b/drivers/clk/samsung/clk-exynos4412-isp.c
@@ -115,10 +115,8 @@ static int __init exynos4x12_isp_clk_probe(struct platform_device *pdev)
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	reg_base = devm_ioremap_resource(dev, res);
-	if (IS_ERR(reg_base)) {
-		dev_err(dev, "failed to map registers\n");
+	if (IS_ERR(reg_base))
 		return PTR_ERR(reg_base);
-	}
 
 	exynos4x12_save_isp = samsung_clk_alloc_reg_dump(exynos4x12_clk_isp_save,
 					ARRAY_SIZE(exynos4x12_clk_isp_save));
diff --git a/drivers/clk/samsung/clk-exynos7.c b/drivers/clk/samsung/clk-exynos7.c
index 87ee1bad9a9a..4a5d2a914bd6 100644
--- a/drivers/clk/samsung/clk-exynos7.c
+++ b/drivers/clk/samsung/clk-exynos7.c
@@ -537,8 +537,13 @@ static const struct samsung_gate_clock top1_gate_clks[] __initconst = {
 	GATE(CLK_ACLK_FSYS0_200, "aclk_fsys0_200", "dout_aclk_fsys0_200",
 		ENABLE_ACLK_TOP13, 28, CLK_SET_RATE_PARENT |
 		CLK_IS_CRITICAL, 0),
+	/*
+	 * This clock is required for the CMU_FSYS1 registers access, keep it
+	 * enabled permanently until proper runtime PM support is added.
+	 */
 	GATE(CLK_ACLK_FSYS1_200, "aclk_fsys1_200", "dout_aclk_fsys1_200",
-		ENABLE_ACLK_TOP13, 24, CLK_SET_RATE_PARENT, 0),
+		ENABLE_ACLK_TOP13, 24, CLK_SET_RATE_PARENT |
+		CLK_IS_CRITICAL, 0),
 
 	GATE(CLK_SCLK_PHY_FSYS1_26M, "sclk_phy_fsys1_26m",
 		"dout_sclk_phy_fsys1_26m", ENABLE_SCLK_TOP1_FSYS11,
diff --git a/drivers/clk/samsung/clk-s5pv210-audss.c b/drivers/clk/samsung/clk-s5pv210-audss.c
index 14985ebd043b..a7827a120695 100644
--- a/drivers/clk/samsung/clk-s5pv210-audss.c
+++ b/drivers/clk/samsung/clk-s5pv210-audss.c
@@ -72,10 +72,8 @@ static int s5pv210_audss_clk_probe(struct platform_device *pdev)
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	reg_base = devm_ioremap_resource(&pdev->dev, res);
-	if (IS_ERR(reg_base)) {
-		dev_err(&pdev->dev, "failed to map audss registers\n");
+	if (IS_ERR(reg_base))
 		return PTR_ERR(reg_base);
-	}
 
 	clk_data = devm_kzalloc(&pdev->dev,
 				struct_size(clk_data, hws, AUDSS_MAX_CLKS),