[PATCH 23/24] clk: stm32: Remove negative error returns from clk_get_rate

[Andrew Goodbody]

clk_get_rate() returns a ulong so do not attempt to pass negative error
codes through it.

Signed-off-by: Andrew Goodbody <andrew.goodbody at linaro.org>
---
 drivers/clk/stm32/clk-stm32-core.c | 4 ++--
 drivers/clk/stm32/clk-stm32f.c     | 6 +++---
 drivers/clk/stm32/clk-stm32h7.c    | 4 ++--
 3 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/clk/stm32/clk-stm32-core.c b/drivers/clk/stm32/clk-stm32-core.c
index 858f122db1a6db02eadc110a7b3e14192654d8ff..5220d49d4206808734f9838d3e55298cf6b163ab 100644
--- a/drivers/clk/stm32/clk-stm32-core.c
+++ b/drivers/clk/stm32/clk-stm32-core.c
@@ -106,11 +106,11 @@ static ulong stm32_clk_get_rate(struct clk *clk)
 	struct clk *c = NULL;
 
 	if (!clk->id || clk_get_by_id(clk->id, &c))
-		return -ENOENT;
+		return 0;
 
 	ops = clk_dev_ops(c->dev);
 	if (!ops->get_rate)
-		return -ENOSYS;
+		return 0;
 
 	return ops->get_rate(c);
 }
diff --git a/drivers/clk/stm32/clk-stm32f.c b/drivers/clk/stm32/clk-stm32f.c
index fceb3c44b94e4e4f5249ff1bc99c7ae4adba4316..db64139d13d4b3fff74838d9e14ae6c5e61c7941 100644
--- a/drivers/clk/stm32/clk-stm32f.c
+++ b/drivers/clk/stm32/clk-stm32f.c
@@ -310,7 +310,7 @@ static unsigned long stm32_clk_get_pllsai_rate(struct stm32_clk *priv,
 		break;
 	default:
 		log_err("incorrect PLLSAI output %d\n", output);
-		return -EINVAL;
+		return 0;
 	}
 
 	return (stm32_clk_get_pllsai_vco_rate(priv) / pll_div_output);
@@ -414,7 +414,7 @@ static ulong stm32_clk_get_rate(struct clk *clk)
 		vco = (priv->hse_rate / pllm) * plln;
 		sysclk = vco / pllp;
 	} else {
-		return -EINVAL;
+		return 0;
 	}
 
 	switch (clk->id) {
@@ -491,7 +491,7 @@ static ulong stm32_clk_get_rate(struct clk *clk)
 
 	default:
 		dev_err(clk->dev, "clock index %ld out of range\n", clk->id);
-		return -EINVAL;
+		return 0;
 	}
 }
 
diff --git a/drivers/clk/stm32/clk-stm32h7.c b/drivers/clk/stm32/clk-stm32h7.c
index df82db69738a5d9704592d5cdbec52125c0620a1..eb8fb72976b60c8016408693631470a0e369e8cb 100644
--- a/drivers/clk/stm32/clk-stm32h7.c
+++ b/drivers/clk/stm32/clk-stm32h7.c
@@ -573,7 +573,7 @@ static u32 stm32_get_PLL1_rate(struct stm32_rcc_regs *regs,
 		break;
 	}
 
-	return -EINVAL;
+	return 0;
 }
 
 static u32 stm32_get_apb_psc(struct stm32_rcc_regs *regs, enum apb apb)
@@ -780,7 +780,7 @@ static ulong stm32_clk_get_rate(struct clk *clk)
 	default:
 		dev_err(clk->dev, "unexpected gate_offset value (0x%x)\n",
 			gate_offset);
-		return -EINVAL;
+		return 0;
 		break;
 	}
 }

-- 
2.47.3