drm/msm/dsi/phy: Replace hardcoded char-array length with sizeof()

Now that the last DSI PHY PLL driver (dsi_phy_28nm_8960) has been
converted to use a simple stack-local char-array instead of a
devm_kzalloc heap allocation we can safely call sizeof() on every string
variable (that's now a sized array instead of a pointer) passed into
snprintf instead of hardcoding the size.

Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/491920/
Link: https://lore.kernel.org/r/20220629225331.357308-7-marijn.suijten@somainline.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>

1 files changed, 17 insertions, 17 deletions

diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_7nm.c b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_7nm.c
index 36f1e6a40d9c..6a58dd62bac5 100644
--- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_7nm.c
+++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_7nm.c
@@ -605,15 +605,15 @@ static int pll_7nm_register(struct dsi_pll_7nm *pll_7nm, struct clk_hw **provide
 
 	DBG("DSI%d", pll_7nm->phy->id);
 
-	snprintf(vco_name, 32, "dsi%dvco_clk", pll_7nm->phy->id);
+	snprintf(vco_name, sizeof(vco_name), "dsi%dvco_clk", pll_7nm->phy->id);
 	pll_7nm->clk_hw.init = &vco_init;
 
 	ret = devm_clk_hw_register(dev, &pll_7nm->clk_hw);
 	if (ret)
 		return ret;
 
-	snprintf(clk_name, 32, "dsi%d_pll_out_div_clk", pll_7nm->phy->id);
-	snprintf(parent, 32, "dsi%dvco_clk", pll_7nm->phy->id);
+	snprintf(clk_name, sizeof(clk_name), "dsi%d_pll_out_div_clk", pll_7nm->phy->id);
+	snprintf(parent, sizeof(parent), "dsi%dvco_clk", pll_7nm->phy->id);
 
 	hw = devm_clk_hw_register_divider(dev, clk_name, parent,
 			CLK_SET_RATE_PARENT, pll_7nm->phy->pll_base +
@@ -624,8 +624,8 @@ static int pll_7nm_register(struct dsi_pll_7nm *pll_7nm, struct clk_hw **provide
 		goto fail;
 	}
 
-	snprintf(clk_name, 32, "dsi%d_pll_bit_clk", pll_7nm->phy->id);
-	snprintf(parent, 32, "dsi%d_pll_out_div_clk", pll_7nm->phy->id);
+	snprintf(clk_name, sizeof(clk_name), "dsi%d_pll_bit_clk", pll_7nm->phy->id);
+	snprintf(parent, sizeof(parent), "dsi%d_pll_out_div_clk", pll_7nm->phy->id);
 
 	/* BIT CLK: DIV_CTRL_3_0 */
 	hw = devm_clk_hw_register_divider(dev, clk_name, parent,
@@ -637,8 +637,8 @@ static int pll_7nm_register(struct dsi_pll_7nm *pll_7nm, struct clk_hw **provide
 		goto fail;
 	}
 
-	snprintf(clk_name, 32, "dsi%d_phy_pll_out_byteclk", pll_7nm->phy->id);
-	snprintf(parent, 32, "dsi%d_pll_bit_clk", pll_7nm->phy->id);
+	snprintf(clk_name, sizeof(clk_name), "dsi%d_phy_pll_out_byteclk", pll_7nm->phy->id);
+	snprintf(parent, sizeof(parent), "dsi%d_pll_bit_clk", pll_7nm->phy->id);
 
 	/* DSI Byte clock = VCO_CLK / OUT_DIV / BIT_DIV / 8 */
 	hw = devm_clk_hw_register_fixed_factor(dev, clk_name, parent,
@@ -651,8 +651,8 @@ static int pll_7nm_register(struct dsi_pll_7nm *pll_7nm, struct clk_hw **provide
 
 	provided_clocks[DSI_BYTE_PLL_CLK] = hw;
 
-	snprintf(clk_name, 32, "dsi%d_pll_by_2_bit_clk", pll_7nm->phy->id);
-	snprintf(parent, 32, "dsi%d_pll_bit_clk", pll_7nm->phy->id);
+	snprintf(clk_name, sizeof(clk_name), "dsi%d_pll_by_2_bit_clk", pll_7nm->phy->id);
+	snprintf(parent, sizeof(parent), "dsi%d_pll_bit_clk", pll_7nm->phy->id);
 
 	hw = devm_clk_hw_register_fixed_factor(dev, clk_name, parent,
 					       0, 1, 2);
@@ -661,8 +661,8 @@ static int pll_7nm_register(struct dsi_pll_7nm *pll_7nm, struct clk_hw **provide
 		goto fail;
 	}
 
-	snprintf(clk_name, 32, "dsi%d_pll_post_out_div_clk", pll_7nm->phy->id);
-	snprintf(parent, 32, "dsi%d_pll_out_div_clk", pll_7nm->phy->id);
+	snprintf(clk_name, sizeof(clk_name), "dsi%d_pll_post_out_div_clk", pll_7nm->phy->id);
+	snprintf(parent, sizeof(parent), "dsi%d_pll_out_div_clk", pll_7nm->phy->id);
 
 	if (pll_7nm->phy->cphy_mode)
 		hw = devm_clk_hw_register_fixed_factor(dev, clk_name, parent, 0, 2, 7);
@@ -682,11 +682,11 @@ static int pll_7nm_register(struct dsi_pll_7nm *pll_7nm, struct clk_hw **provide
 		data = dsi_phy_read(pll_7nm->phy->base + REG_DSI_7nm_PHY_CMN_CLK_CFG1);
 		dsi_phy_write(pll_7nm->phy->base + REG_DSI_7nm_PHY_CMN_CLK_CFG1, data | 3);
 
-		snprintf(parent, 32, "dsi%d_pll_post_out_div_clk", pll_7nm->phy->id);
+		snprintf(parent, sizeof(parent), "dsi%d_pll_post_out_div_clk", pll_7nm->phy->id);
 	} else {
-		snprintf(clk_name, 32, "dsi%d_pclk_mux", pll_7nm->phy->id);
-		snprintf(parent, 32, "dsi%d_pll_bit_clk", pll_7nm->phy->id);
-		snprintf(parent2, 32, "dsi%d_pll_by_2_bit_clk", pll_7nm->phy->id);
+		snprintf(clk_name, sizeof(clk_name), "dsi%d_pclk_mux", pll_7nm->phy->id);
+		snprintf(parent, sizeof(parent), "dsi%d_pll_bit_clk", pll_7nm->phy->id);
+		snprintf(parent2, sizeof(parent2), "dsi%d_pll_by_2_bit_clk", pll_7nm->phy->id);
 
 		hw = devm_clk_hw_register_mux(dev, clk_name,
 				((const char *[]){
@@ -699,10 +699,10 @@ static int pll_7nm_register(struct dsi_pll_7nm *pll_7nm, struct clk_hw **provide
 			goto fail;
 		}
 
-		snprintf(parent, 32, "dsi%d_pclk_mux", pll_7nm->phy->id);
+		snprintf(parent, sizeof(parent), "dsi%d_pclk_mux", pll_7nm->phy->id);
 	}
 
-	snprintf(clk_name, 32, "dsi%d_phy_pll_out_dsiclk", pll_7nm->phy->id);
+	snprintf(clk_name, sizeof(clk_name), "dsi%d_phy_pll_out_dsiclk", pll_7nm->phy->id);
 
 	/* PIX CLK DIV : DIV_CTRL_7_4*/
 	hw = devm_clk_hw_register_divider(dev, clk_name, parent, 0,