From b620c17672b9c162bbc1e480eaf43a825345cb2a Mon Sep 17 00:00:00 2001
From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Date: Sun, 28 Jul 2019 18:56:14 -0500
Subject: [PATCH] mfd: db8500-prcmu: Mark expected switch fall-throughs
Mark switch cases where we are expecting to fall through.
This patch fixes the following warnings:
drivers/mfd/db8500-prcmu.c: In function 'dsiclk_rate':
drivers/mfd/db8500-prcmu.c:1592:7: warning: this statement may fall through [-Wimplicit-fallthrough=]
div *= 2;
~~~~^~~~
drivers/mfd/db8500-prcmu.c:1593:2: note: here
case PRCM_DSI_PLLOUT_SEL_PHI_2:
^~~~
drivers/mfd/db8500-prcmu.c:1594:7: warning: this statement may fall through [-Wimplicit-fallthrough=]
div *= 2;
~~~~^~~~
drivers/mfd/db8500-prcmu.c:1595:2: note: here
case PRCM_DSI_PLLOUT_SEL_PHI:
^~~~
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
drivers/mfd/db8500-prcmu.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/mfd/db8500-prcmu.c b/drivers/mfd/db8500-prcmu.c
index 3f21e26b8d36e..90e0f21bc49c5 100644
--- a/drivers/mfd/db8500-prcmu.c
+++ b/drivers/mfd/db8500-prcmu.c
@@ -1590,8 +1590,10 @@ static unsigned long dsiclk_rate(u8 n)
switch (divsel) {
case PRCM_DSI_PLLOUT_SEL_PHI_4:
div *= 2;
+ /* Fall through */
case PRCM_DSI_PLLOUT_SEL_PHI_2:
div *= 2;
+ /* Fall through */
case PRCM_DSI_PLLOUT_SEL_PHI:
return pll_rate(PRCM_PLLDSI_FREQ, clock_rate(PRCMU_HDMICLK),
PLL_RAW) / div;
--
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